General Information:

Id: 9,147
Diseases: Alzheimer disease - [OMIM]
Gastrointestinal
Mental
Metabolic
Neurological
Mammalia
review
Reference: de J R De-Paula V et al.(2018) Relevance of gutmicrobiota in cognition, behaviour and Alzheimers disease Pharmacol. Res. 136: 29-34 [PMID: 30138667]

Interaction Information:

Comment Approximately 95% of the symbiotic microbes in human body are located in the gut. This microbioma is involved in important homeostatic processes, not only related to gastrointestinal function but also to several complex modulatory processes, such as glucose and bone metabolism, inflammation and immune response, peripheral (enteric) and central neurotransmission.
Formal Description
Interaction-ID: 96387

environment

gut microbiota

affects_activity of

Comment Approximately 95% of the symbiotic microbes in human body are located in the gut. This microbioma is involved in important homeostatic processes, not only related to gastrointestinal function but also to several complex modulatory processes, such as glucose and bone metabolism, inflammation and immune response, peripheral (enteric) and central neurotransmission.
Formal Description
Interaction-ID: 96483

environment

gut microbiota

affects_activity of

process

bone metabolic process

Comment Approximately 95% of the symbiotic microbes in human body are located in the gut. This microbioma is involved in important homeostatic processes, not only related to gastrointestinal function but also to several complex modulatory processes, such as glucose and bone metabolism, inflammation and immune response, peripheral (enteric) and central neurotransmission.
Formal Description
Interaction-ID: 96484

environment

gut microbiota

affects_activity of

Comment Approximately 95% of the symbiotic microbes in human body are located in the gut. This microbioma is involved in important homeostatic processes, not only related to gastrointestinal function but also to several complex modulatory processes, such as glucose and bone metabolism, inflammation and immune response, peripheral (enteric) and central neurotransmission.
Formal Description
Interaction-ID: 96485

environment

gut microbiota

affects_activity of

process

immune response

Comment Approximately 95% of the symbiotic microbes in human body are located in the gut. This microbioma is involved in important homeostatic processes, not only related to gastrointestinal function but also to several complex modulatory processes, such as glucose and bone metabolism, inflammation and immune response, peripheral (enteric) and central neurotransmission.
Formal Description
Interaction-ID: 96486

environment

gut microbiota

affects_activity of

process

peripheral neurotransmission

Comment Approximately 95% of the symbiotic microbes in human body are located in the gut. This microbioma is involved in important homeostatic processes, not only related to gastrointestinal function but also to several complex modulatory processes, such as glucose and bone metabolism, inflammation and immune response, peripheral (enteric) and central neurotransmission.
Formal Description
Interaction-ID: 96487

environment

gut microbiota

affects_activity of

process

central neurotransmission

Comment Through metabolic activity of non- pathogenical microorganisms and secretion of functional by-products that increase the permeability of the intestinal mucosa, the gut microbiota influences both the production and absorption of neurotransmitters (e.g., serotonin and GABA), increasing their bioavailability to the CNS.
Formal Description
Interaction-ID: 96488

environment

gut microbiota

affects_activity of

concerning metabolic activity of non-pathogenical microorganisms
Comment Through metabolic activity of non- pathogenical microorganisms and secretion of functional by-products that increase the permeability of the intestinal mucosa, the gut microbiota influences both the production and absorption of neurotransmitters (e.g., serotonin and GABA), increasing their bioavailability to the CNS.
Formal Description
Interaction-ID: 96489

environment

gut microbiota

affects_activity of

process

neurotransmitter absorption

concerning metabolic activity of non-pathogenical microorganisms
Comment Through metabolic activity of non- pathogenical microorganisms and secretion of functional by-products that increase the permeability of the intestinal mucosa, the gut microbiota influences both the production and absorption of neurotransmitters (e.g., serotonin and GABA), increasing their bioavailability to the CNS.
Formal Description
Interaction-ID: 96490

environment

gut microbiota

increases_activity of

phenotype

increased intestinal permeability

e.g. through secretion of functional by-products of non- pathogenical microorganisms, via increasing the permeability of the intestinal mucosa
Comment Through metabolic activity of non- pathogenical microorganisms and secretion of functional by-products that increase the permeability of the intestinal mucosa, the gut microbiota influences both the production and absorption of neurotransmitters (e.g., serotonin and GABA), increasing their bioavailability to the CNS.
Formal Description
Interaction-ID: 96491

environment

gut microbiota

increases_activity of

process

metabolite bioavailability

e.g. concerning absorption of neurotransmitters
Comment It has been further shown some components of the gut microbiota - predominantly bacteria - synthesize and release amyloid peptides and lipopolysaccharides, which in turn activate inflammatory signalling through the release of cytokines, with potential effects on the pathophysiological cascade of Alzheimer disease.
Formal Description
Interaction-ID: 96492

environment

gut microbiota

affects_quantity of

gene/protein

Amyloid beta peptide

via synthesizing and releasing amyloid peptides
Comment It has been further shown some components of the gut microbiota - predominantly bacteria - synthesize and release amyloid peptides and lipopolysaccharides, which in turn activate inflammatory signalling through the release of cytokines, with potential effects on the pathophysiological cascade of Alzheimer disease.
Formal Description
Interaction-ID: 96493

environment

gut microbiota

increases_quantity of

drug/chemical compound

Lipopolysaccharide

via synthesizing and releasing lipopolysaccharides
Comment The composition of gut microbiota in humans has been found to be related to several medical diseases, including obesity, diabetes, asthma, inflammatory gastrointestinal, and other autoimmune diseases.
Formal Description
Interaction-ID: 96494

environment

altered gut microbiota composition

affects_activity of

disease

Obesity

Comment Amongst many neuropsychiatric disorders, there is evidence of abnormalities in gut microbiota associated with autism spectrum disorder, depression, Parkinson’s and Alzheimer’s disease.
Formal Description
Interaction-ID: 96495

environment

altered gut microbiota composition

affects_activity of

disease

Autism spectrum disorder

Comment Some studies have demonstrated a critical implication of the composition of human microbiota on metabolic syndrome, where a diet enriched with polyphenols and polysaccharides can modulate and stimulated the gut microbiota and its impact of type 2 diabetes and obesity reduction.
Formal Description
Interaction-ID: 96496

environment

altered gut microbiota composition

affects_activity of

disease

Metabolic syndrome

Comment The composition of gut microbiota in humans has been found to be related to several medical diseases, including obesity, diabetes, asthma, inflammatory gastrointestinal, and other autoimmune diseases.
Formal Description
Interaction-ID: 96497

environment

altered gut microbiota composition

affects_activity of

disease

Diabetes mellitus

Comment The composition of gut microbiota in humans has been found to be related to several medical diseases, including obesity, diabetes, asthma, inflammatory gastrointestinal, and other autoimmune diseases.
Formal Description
Interaction-ID: 96498

environment

altered gut microbiota composition

affects_activity of

disease

Asthma

Comment The composition of gut microbiota in humans has been found to be related to several medical diseases, including obesity, diabetes, asthma, inflammatory gastrointestinal, and other autoimmune diseases.
Formal Description
Interaction-ID: 96499

environment

altered gut microbiota composition

affects_activity of

Comment The composition of gut microbiota in humans has been found to be related to several medical diseases, including obesity, diabetes, asthma, inflammatory gastrointestinal, and other autoimmune diseases.
Formal Description
Interaction-ID: 96500

environment

altered gut microbiota composition

affects_activity of

disease

Autoimmune disease

Comment Amongst many neuropsychiatric disorders, there is evidence of abnormalities in gut microbiota associated with autism spectrum disorder, depression, Parkinson’s and Alzheimer’s disease.
Formal Description
Interaction-ID: 96501

environment

altered gut microbiota composition

affects_activity of

Comment Amongst many neuropsychiatric disorders, there is evidence of abnormalities in gut microbiota associated with autism spectrum disorder, depression, Parkinson’s and Alzheimer’s disease.
Formal Description
Interaction-ID: 96502

environment

altered gut microbiota composition

affects_activity of

Comment Amongst many neuropsychiatric disorders, there is evidence of abnormalities in gut microbiota associated with autism spectrum disorder, depression, Parkinson’s and Alzheimer’s disease.
Formal Description
Interaction-ID: 96503

environment

altered gut microbiota composition

affects_activity of

disease

Parkinson disease

Comment Some studies have demonstrated a critical implication of the composition of human microbiota on metabolic syndrome, where a diet enriched with polyphenols and polysaccharides can modulate and stimulated the gut microbiota and its impact of type 2 diabetes and obesity reduction.
Formal Description
Interaction-ID: 96504

environment

polyphenol-polysaccharide diet

affects_activity of

environment

gut microbiota

Comment The interactions with the central nervous system (CNS) occur within the so-called ‚Äėmicrobiota-gut-brain axis‚Äô, a complex and bidirectional communication network between the gut and the CNS. The gut microbiota effects on the brain are transduced by the activation of the vagus nerve, through the secretion of signaling molecules and the modulation of the immune system. The metabolic products of the healthy microbiome are required for the optimal function of the CNS microglia.
Formal Description
Interaction-ID: 96505

process

microbiota-gut-brain axis

interacts (colocalizes) with

tissue/cell line

central nervous system

Comment The interactions with the central nervous system (CNS) occur within the so-called ‚Äėmicrobiota-gut-brain axis‚Äô, a complex and bidirectional communication network between the gut and the CNS. The gut microbiota effects on the brain are transduced by the activation of the vagus nerve, through the secretion of signaling molecules and the modulation of the immune system. The metabolic products of the healthy microbiome are required for the optimal function of the CNS microglia.
Formal Description
Interaction-ID: 96506

environment

gut microbiota

affects_activity of

tissue/cell line

brain

via activation of the vagus nerve, through the secretion of signaling molecules and the modulation of the immune system
Comment The microbiota is very important for the maturation and activation of microglia. This activation is important in health and in pathological state.
Formal Description
Interaction-ID: 96507

environment

gut microbiota

affects_activity of

tissue/cell line

microglia

concerning the maturation and activation of microglia
Comment Certain gut microbiota organisms may specifically influence neuroinflammatory signaling (e.g., Bacteroides vulgatus, Bacteroides distasonis, Lactobacillus salivarius, Clostridium cluster, Bifidobacterium longum) and affect brain function in rodents and humans (e.g., Bifidobacteria infantis).
Formal Description
Interaction-ID: 96508

environment

gut microbiota

affects_activity of

process

neuroinflammatory signaling

e.g., Bacteroides vulgatus, Bacteroides distasonis, Lactobacillus salivarius, Clostridium cluster, Bifidobacterium longum
Comment Certain gut microbiota organisms may specifically influence neuroinflammatory signaling (e.g., Bacteroides vulgatus, Bacteroides distasonis, Lactobacillus salivarius, Clostridium cluster, Bifidobacterium longum) and affect brain function in rodents and humans (e.g., Bifidobacteria infantis).
Formal Description
Interaction-ID: 96509

environment

Bacteroides vulgatus

affects_activity of

process

neuroinflammatory signaling

Comment Certain gut microbiota organisms may specifically influence neuroinflammatory signaling (e.g., Bacteroides vulgatus, Bacteroides distasonis, Lactobacillus salivarius, Clostridium cluster, Bifidobacterium longum) and affect brain function in rodents and humans (e.g., Bifidobacteria infantis).
Formal Description
Interaction-ID: 96510

environment

Bacteroides distasonis

affects_activity of

process

neuroinflammatory signaling

Comment Certain gut microbiota organisms may specifically influence neuroinflammatory signaling (e.g., Bacteroides vulgatus, Bacteroides distasonis, Lactobacillus salivarius, Clostridium cluster, Bifidobacterium longum) and affect brain function in rodents and humans (e.g., Bifidobacteria infantis).
Formal Description
Interaction-ID: 96511

environment

Lactobacillus salivarius

affects_activity of

process

neuroinflammatory signaling

Comment Certain gut microbiota organisms may specifically influence neuroinflammatory signaling (e.g., Bacteroides vulgatus, Bacteroides distasonis, Lactobacillus salivarius, Clostridium cluster, Bifidobacterium longum) and affect brain function in rodents and humans (e.g., Bifidobacteria infantis).
Formal Description
Interaction-ID: 96512

environment

Clostridium cluster

affects_activity of

process

neuroinflammatory signaling

Comment Certain gut microbiota organisms may specifically influence neuroinflammatory signaling (e.g., Bacteroides vulgatus, Bacteroides distasonis, Lactobacillus salivarius, Clostridium cluster, Bifidobacterium longum) and affect brain function in rodents and humans (e.g., Bifidobacteria infantis).
Formal Description
Interaction-ID: 96513

environment

Bifidobacterium longum

affects_activity of

process

neuroinflammatory signaling

Comment Certain gut microbiota organisms may specifically influence neuroinflammatory signaling (e.g., Bacteroides vulgatus, Bacteroides distasonis, Lactobacillus salivarius, Clostridium cluster, Bifidobacterium longum) and affect brain function in rodents and humans (e.g., Bifidobacteria infantis).
Formal Description
Interaction-ID: 96514

environment

Bifidobacterium infantis

affects_activity of

tissue/cell line

brain

in rodents and humans
Comment Changes in the composition and function of gut microbiota significantly affect neuronal function and, consequently, the host’s behaviour.
Formal Description
Interaction-ID: 96515

environment

altered gut microbiota composition

affects_activity of

tissue/cell line

neuron

Comment Changes in the composition and function of gut microbiota significantly affect neuronal function and, consequently, the host’s behaviour.
Formal Description
Interaction-ID: 96516

process

neuronal function

affects_activity of

process

behavior

Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests).
Formal Description
Interaction-ID: 96517

drug/chemical compound

Antibiotic

increases_activity of

environment

altered gut microbiota composition

in rats; e.g. via treatment with ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96518

drug/chemical compound

Antibiotic

increases_quantity of

drug/chemical compound

Corticosteroid

in serum of rats; after treatment with ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96519

drug/chemical compound

Antibiotic

increases_activity of

in rats; after treatment with ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96520

drug/chemical compound

Antibiotic

increases_activity of

phenotype

abnormal behavior

in rats; after treatment with ampicillin; e.g. memory impairment and anxiety
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96521

drug/chemical compound

Antibiotic

increases_activity of

in rats; after treatment with ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96522

drug/chemical compound

Antibiotic

increases_activity of

in rats; after treatment with ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96523

drug/chemical compound

Ampicillin

increases_activity of

environment

altered gut microbiota composition

in rats
Drugbank entries Show/Hide entries for Ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96524

drug/chemical compound

Ampicillin

increases_quantity of

drug/chemical compound

Corticosteroid

in serum of rats
Drugbank entries Show/Hide entries for Ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96525

drug/chemical compound

Ampicillin

increases_activity of

in rats
Drugbank entries Show/Hide entries for Ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96526

drug/chemical compound

Ampicillin

increases_activity of

phenotype

abnormal behavior

in rats
Drugbank entries Show/Hide entries for Ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96527

drug/chemical compound

Ampicillin

increases_activity of

in rats
Drugbank entries Show/Hide entries for Ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96528

drug/chemical compound

Ampicillin

increases_activity of

in rats
Drugbank entries Show/Hide entries for Ampicillin
Comment Antibiotic-induced disruption of gut microbiota (e.g. via treatment with ampicillin) resulted in increased serum corticosteroid levels, inflammation and cognitive-behavioral abnormalities (i.e., memory impairment and anxiety as shown in the elevated plus maze and Morris water maze tests). In this study, both physiological and psychological deficits were reverted by the recomposition of gut microbiota by the administration of Lactobacillus fermentum (strain NS9).
Formal Description
Interaction-ID: 96529

environment

Lactobacillus fermentum (strain NS9)

decreases_activity of

drug/chemical compound

Ampicillin

in rats
Drugbank entries Show/Hide entries for
Comment Citrobacter rodentium is a component of dysbiosis that may cause temporary enteritis in mice, and its overgrowth in an animal model has also been associated with cognitive impairment, i.e., reduced non-spatial recognition and working memory.
Formal Description
Interaction-ID: 96530

environment

Citrobacter rodentium

increases_activity of

environment

gut dysbiosis

in mice
Comment Probiotic treatment for one week prior to infection with Citrobacter rodentium decreased stress-induced cognitive and behavioural changes.
Formal Description
Interaction-ID: 96531

environment

Probiotics

decreases_activity of

environment

Citrobacter rodentium

via decreasing stress-induced cognitive and behavioural changes
Comment Probiotic treatment for one week prior to infection with Citrobacter rodentium decreased stress-induced cognitive and behavioural changes.
Formal Description
Interaction-ID: 96532

environment

Probiotics

decreases_activity of

concerning stress-induced cognitive and behavioural changes caused by Citrobacter rodentium
Comment The administration of Lactobacillus helveticus (NS8) for four weeks by intraperitoneal injection in a rat model improved cognitive and behavioural impairment caused by chronic stress.
Formal Description
Interaction-ID: 96533

environment

Lactobacillus helveticus NS8

decreases_activity of

phenotype

cognitive impairment

in rat; concerning cognitive and behavioural impairment caused by chronic stress
Comment The administration of two strains of Bifidobacteria (B. longum and B. breve) for eleven weeks to BALB/c mice facilitated cognitive processes such as learning, memory and recognition ability.
Formal Description
Interaction-ID: 96534

environment

Bifidobacterium longum

increases_activity of

in BALB/c mice
Comment In a neuroimaging study conducted in humans, the ingestion of fermented milk with probiotics changed the intrinsic activity of the resting brain, modulating the activity of certain areas involved in the control of emotions and sensations.
Formal Description
Interaction-ID: 96535

environment

Probiotics

affects_activity of

tissue/cell line

brain

in the resting brain; modulating the activity of certain areas involved in the control of emotions and sensations
Comment The administration of Lactobacillus helveticus (NS8) for four weeks by intraperitoneal injection in a rat model improved cognitive and behavioural impairment caused by chronic stress.
Formal Description
Interaction-ID: 96537

environment

Lactobacillus helveticus NS8

decreases_activity of

phenotype

abnormal behavior

in rat; concerning cognitive and behavioural impairment caused by chronic stress
Comment The administration of Lactobacillus helveticus (NS8) for four weeks by intraperitoneal injection in a rat model improved cognitive and behavioural impairment caused by chronic stress.
Formal Description
Interaction-ID: 96538

environment

Lactobacillus helveticus NS8

decreases_activity of

in rat; concerning cognitive and behavioural impairment caused by chronic stress
Comment Under normal conditions, the gut microbiota secretes neurotransmitters (e.g., Gamma-AminoButyric Acid-GABA, serotonin) and trophic factors (e.g., brain derived neurotrophic factor-BDNF), being therefore indirectly related to neuronal communication, maintenance and survival through neurotrophic support.
Formal Description
Interaction-ID: 96539

environment

gut microbiota

increases_activity of

e.g. Gamma-Amino-Butyric Acid-GABA or serotonin, being therefore indirectly related to neuronal communication, maintenance and survival through neurotrophic support under normal conditions
Comment Under normal conditions, the gut microbiota secretes neurotransmitters (e.g. Gamma-Amino-Butyric Acid-GABA, serotonin) and trophic factors (e.g., brain derived neurotrophic factor-BDNF), being therefore indirectly related to neuronal communication, maintenance and survival through neurotrophic support.
Formal Description
Interaction-ID: 96540

environment

gut microbiota

increases_activity of

under normal conditions, being therefore indirectly related to neuronal communication, maintenance and survival through neurotrophic support
Comment Under normal conditions, the gut microbiota secretes neurotransmitters (e.g. Gamma-Amino-Butyric Acid-GABA, serotonin) and trophic factors (e.g., brain derived neurotrophic factor-BDNF), being therefore indirectly related to neuronal communication, maintenance and survival through neurotrophic support.
Formal Description
Interaction-ID: 96541

environment

gut microbiota

increases_activity of

under normal conditions, being therefore indirectly related to neuronal communication, maintenance and survival through neurotrophic support
Comment Under normal conditions, the gut microbiota secretes neurotransmitters (e.g., Gamma-AminoButyric Acid-GABA, serotonin) and trophic factors (e.g., brain derived neurotrophic factor-BDNF), being therefore indirectly related to neuronal communication, maintenance and survival through neurotrophic support.
Formal Description
Interaction-ID: 96542

environment

gut microbiota

increases_activity of

process

trophic factor secretion

e.g. brain derived neurotrophic factor-BDNF, under normal conditions
Comment Under normal conditions, the gut microbiota secretes neurotransmitters (e.g., Gamma-AminoButyric Acid-GABA, serotonin) and trophic factors (e.g., brain derived neurotrophic factor-BDNF), being therefore indirectly related to neuronal communication, maintenance and survival through neurotrophic support.
Formal Description
Interaction-ID: 96543

environment

gut microbiota

increases_activity of

process

BDNF secretion

under normal conditions, being therefore indirectly related to neuronal communication, maintenance and survival through neurotrophic support
Comment GABA is a major inhibitory neurotransmitter in the human CNS and dysfunctions in the GABAergic system contribute to cognitive and memory impairment.
Formal Description
Interaction-ID: 96544

drug/chemical compound

GABA

affects_activity of

in the human CNS
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96545

environment

Lactobacillus

decreases_quantity of

drug/chemical compound

Monosodium glutamate

components of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96546

environment

Lactobacillus

increases_quantity of

drug/chemical compound

GABA

components of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96547

environment

Bifidobacterium

decreases_quantity of

drug/chemical compound

Monosodium glutamate

components of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96548

environment

Bifidobacterium

increases_quantity of

drug/chemical compound

GABA

components of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96549

environment

Lactobacillus

affects_activity of

environment

gut microbiota

as component of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96550

environment

Bifidobacterium

affects_activity of

environment

gut microbiota

as component of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment GABA is a major inhibitory neurotransmitter in the human CNS and dysfunctions in the GABAergic system contribute to cognitive and memory impairment.
Formal Description
Interaction-ID: 96551

increases_activity of

phenotype

cognitive impairment

Comment GABA is a major inhibitory neurotransmitter in the human CNS and dysfunctions in the GABAergic system contribute to cognitive and memory impairment.
Formal Description
Interaction-ID: 96552

increases_activity of

phenotype

memory impairment

Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96553

phenotype

increased GABA level

increases_activity of

phenotype

increased CNS bioavailability of GABA

in the gastrointestinal tract; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96554

phenotype

increased GABA level

increases_activity of

in CNS; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96555

environment

Lactobacillus

affects_activity of

tissue/cell line

brain

as component of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96556

environment

Bifidobacterium

affects_activity of

tissue/cell line

brain

as component of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96557

environment

Lactobacillus

increases_activity of

in CNS; as component of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment Lactobacilli and Bifidobacteria, components of the normal gut microbiota, convert monosodium glutamate into GABA; increased GABA in the gastrointestinal tract results in increased CNS availability of this neurotransmitter, up-regulating inhibitory signaling through GABAergic neurons.
Formal Description
Interaction-ID: 96558

environment

Bifidobacterium

increases_activity of

in CNS; as component of the normal gut microbiota; via converting monosodium glutamate into GABA
Comment Serotonin (5-HT) is a key element in the gut-brain axis, acting as a neurotransmitter both in the CNS and in the enteric nervous system.
Formal Description
Interaction-ID: 96560

drug/chemical compound

Serotonin

affects_activity of

process

gut-brain axis

acting as a neurotransmitter both in the CNS and in the enteric nervous system
Comment The gut microbiota regulates the availability of tryptophan by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells. Therefore, the gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production, affecting the availability of this neurotransmitter both in enteric and central nervous systems.
Formal Description
Interaction-ID: 96561

environment

gut microbiota

affects_activity of

process

tryptophan bioavailability

by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells
Comment BDNF is essential for the normal function and survival of neurons in mature peripheral and central nervous system. The availability of BNDF is also affected by the gut microbiota. In germ-free mice, the expression of BDNF was found to be decreased in the hippocampus, both at protein and mRNA levels, and this finding was significantly associated with impaired cognition in this animal model.
Formal Description
Interaction-ID: 96562

gene/protein

BDNF

increases_activity of

tissue/cell line

neuron

concerning the normal function and survival of neurons in mature peripheral and central nervous system
Comment The proliferation of gut microbiota in rats by the administration of prebiotic agents lead to increased expression of BDNF in the hippocampus and frontal cortex.
Formal Description
Interaction-ID: 96563

environment

prebiotic diet

increases_quantity of

environment

gut microbiota

in rats; via proliferation of gut microbiota in rats by the administration of prebiotic agents
Comment Hypothesis: Bacteria populating the gut microbiota can release significant amounts of amyloids, lipopolysaccharides and other microbial by-products into their surrounding environment. The absorption of these molecules affects signaling pathways related to the production of proinflammatory cytokines, some of which are related to the pathogenesis of AD. In addition, the systemic burden of bacterial amyloid may contribute to the progression of intracerebral accumulation of Abeta. Therefore, the composition and activity of the gut microbiota leading to the production of bacterial amyloid may influence the accumulation and aggregation of Abeta in the brain.
Formal Description
Interaction-ID: 96564

none selected

Drugbank entries Show/Hide entries for or
Comment Gut microbiota converts dietary polyphenols into phenolic acids, in the so-called metabolism of anthocyanidins.
Formal Description
Interaction-ID: 96565

environment

gut microbiota

decreases_quantity of

drug/chemical compound

Polyphenol

via converting dietary polyphenols into phenolic acids, in the so-called metabolism of anthocyanidins
Comment Animal studies indicate that abnormal 5-HT biosynthesis caused by the disruption of gut microbiota may also affect the pathological process of AD.
Formal Description
Interaction-ID: 96566

environment

altered gut microbiota composition

increases_activity of

phenotype

abnormal serotonin biosynthetic process

abnormal 5-HT biosynthesis caused by the disruption of gut microbiota may also affect the pathological process of AD
Comment It was demonstrated that probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state. In this study, the intervention group received 200 ml/day of probiotic milk containing three strains of Lactobacilli (Lactobacillus acidophilus, L. casei, and L. fermentum) and Bifidobacterium bifidum for twelve weeks; as compared to controls, subjects in the experimental group performed better in the Mini-Mental State Examination scores and had decrements in markers of inflammation state and insulin resistance.
Formal Description
Interaction-ID: 96567

environment

Probiotics

decreases_activity of

probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state
Comment Increased bacterial lipopolysaccharides in the hippocampus and neocortex of postmortem brains from Alzheimer¬īs disease patients were reported.
Formal Description
Interaction-ID: 96568

cooccurs with

phenotype

increased bacterial lipopolysaccharide

in the hippocampus and neocortex of postmortem brains from Alzheimer¬īs disease patients
Comment Pro-inflammatory cytokines can be activated by gut microbiome through increased intestinal permeability, leading to the development of insulin resistance, which has also been associated with AD.
Formal Description
Interaction-ID: 96569

environment

gut microbiota

increases_activity of

gene/protein

Proinflammatory cytokine

through increased intestinal permeability, leading to the development of insulin resistance
Comment Escherichia/Shigella amount correlated positively with the levels of pro-inflammatory cytokines in cognitively impaired patients.
Formal Description
Interaction-ID: 96570

environment

increased Escherichia level

cooccurs with

phenotype

increased proinflammatory cytokine level

in cognitively impaired patients
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96571

tissue/cell line

oxyntic cell

increases_quantity of

gene/protein

Ghrelin

with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota
Comment Changes in the gut microbiota as a consequence of antibiotic treatment has been associated with changes in plasma ghrelin level. Similarly, the modification of gut microbiota with probiotics has been show to promote increased availability of leptin in the serum.
Formal Description
Interaction-ID: 96572

environment

altered gut microbiota composition

cooccurs with

phenotype

altered ghrelin level

in plasma; changes in the gut microbiota as a consequence of antibiotic treatment
Comment Ghrelin is involved in glucose and lipid metabolisms, with effects on mitochondrial respiration; it may also exert neuroprotective effects, illustrating the interaction between metabolism and mechanisms of neurodegeneration.
Formal Description
Interaction-ID: 96573

gene/protein

Ghrelin

affects_activity of

with effects on mitochondrial respiration
Comment Ghrelin and leptin increases the secretion of neurotrophic factors consequently modifying the toxicity of Abeta oligomers and phosphorylated tau levels in animal model.
Formal Description
Interaction-ID: 96574

gene/protein

Ghrelin

increases_activity of

process

neurotrophic factor secretion

in animal models; consequently modifying the toxicity of Abeta oligomers and phosphorylated tau levels
Comment Animal models of AD treated with leptin showed a reduction in Abeta and phosphorylated tau levels. In humans, plasma leptin concentration has been shown to be negatively correlated to Abeta levels, supposedly due to a direct inhibitory effect on gamma-secretase.
Formal Description
Interaction-ID: 96575

gene/protein

LEP

decreases_quantity of

gene/protein

Amyloid beta peptide

in AD animal models
Comment Serotonin (5-HT) is a key element in the gut-brain axis, acting as a neurotransmitter both in the CNS and in the enteric nervous system.
Formal Description
Interaction-ID: 96576

drug/chemical compound

Serotonin

affects_activity of

acting as a neurotransmitter both in the CNS and in the enteric nervous system
Comment The major substrate for the synthesis of serotonin is the essential aminoacid tryptophan. The largest part of bioavailable tryptophan is dedicated to the synthesis of kynurenine, an essential metabolic pathway that leads the production of nicotinamide adenine dinucleotide (NAD) both in human and microbiota cells.
Formal Description
Interaction-ID: 96577

drug/chemical compound

Tryptophan

increases_quantity of

drug/chemical compound

Serotonin

The major substrate for the synthesis of serotonin is tryptophan.
Comment The major substrate for the synthesis of serotonin is the essential aminoacid tryptophan. The largest part of bioavailable tryptophan is dedicated to the synthesis of kynurenine, an essential metabolic pathway that leads the production of nicotinamide adenine dinucleotide (NAD) both in human and microbiota cells.
Formal Description
Interaction-ID: 96578

drug/chemical compound

Tryptophan

increases_quantity of

drug/chemical compound

Kynurenine

The largest part of bioavailable tryptophan is dedicated to the synthesis of kynurenine.
Comment The major substrate for the synthesis of serotonin is the essential aminoacid tryptophan. The largest part of bioavailable tryptophan is dedicated to the synthesis of kynurenine, an essential metabolic pathway that leads the production of nicotinamide adenine dinucleotide (NAD) both in human and microbiota cells.
Formal Description
Interaction-ID: 96579

drug/chemical compound

Kynurenine

affects_quantity of

drug/chemical compound

NAD+

both in human and microbiota cells
Comment The enterochromaffin cells in the gastrointestinal epithelium account for 90% of serotonin synthesis, and this process requires an accurate balance between bacterial utilization and epithelial uptake of tryptophan for serotonin synthesis.
Formal Description
Interaction-ID: 96580

tissue/cell line

enterochromaffin cell

increases_quantity of

drug/chemical compound

Serotonin

in the gastrointestinal epithelium ; The enterochromaffin cells in the gastrointestinal epithelium account for 90% of serotonin synthesis.
Comment The gut microbiota regulates the availability of tryptophan by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells. Therefore, the gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production, affecting the availability of this neurotransmitter both in enteric and central nervous systems.
Formal Description
Interaction-ID: 96581

environment

gut microbiota

affects_activity of

The gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production.
Comment The gut microbiota regulates the availability of tryptophan by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells. Therefore, the gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production, affecting the availability of this neurotransmitter both in enteric and central nervous systems.
Formal Description
Interaction-ID: 96582

environment

Escherichia coli

affects_activity of

The gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production.
Comment The gut microbiota regulates the availability of tryptophan by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells. Therefore, the gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production, affecting the availability of this neurotransmitter both in enteric and central nervous systems.
Formal Description
Interaction-ID: 96583

environment

Enterococcus

affects_activity of

The gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production.
Comment The gut microbiota regulates the availability of tryptophan by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells. Therefore, the gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production, affecting the availability of this neurotransmitter both in enteric and central nervous systems.
Formal Description
Interaction-ID: 96584

environment

Escherichia coli

affects_activity of

environment

gut microbiota

The gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production.
Comment The gut microbiota regulates the availability of tryptophan by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells. Therefore, the gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production, affecting the availability of this neurotransmitter both in enteric and central nervous systems.
Formal Description
Interaction-ID: 96585

environment

Enterococcus

affects_activity of

environment

gut microbiota

The gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production.
Comment The gut microbiota regulates the availability of tryptophan by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells. Therefore, the gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production, affecting the availability of this neurotransmitter both in enteric and central nervous systems.
Formal Description
Interaction-ID: 96586

environment

gut microbiota

affects_activity of

process

serotonin bioavailability

both in enteric and central nervous systems
Comment The gut microbiota regulates the availability of tryptophan by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells. Therefore, the gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production, affecting the availability of this neurotransmitter both in enteric and central nervous systems.
Formal Description
Interaction-ID: 96587

environment

Escherichia coli

affects_activity of

process

serotonin bioavailability

both in enteric and central nervous systems
Comment The gut microbiota regulates the availability of tryptophan by dislocating its uptake to the bacterial kynurenine pathway in detriment of serotonin synthesis by epithelial cells. Therefore, the gut microbiota, predominantly represented by Escherichia coli and Enterococci, plays an important role in the regulation of serotonin production, affecting the availability of this neurotransmitter both in enteric and central nervous systems.
Formal Description
Interaction-ID: 96588

environment

Enterococcus

affects_activity of

process

serotonin bioavailability

both in enteric and central nervous systems
Comment BDNF is essential for the normal function and survival of neurons in mature peripheral and central nervous system. The availability of BNDF is also affected by the gut microbiota. In germ-free mice, the expression of BDNF was found to be decreased in the hippocampus, both at protein and mRNA levels, and this finding was significantly associated with impaired cognition in this animal model.
Formal Description
Interaction-ID: 96589

environment

gut microbiota

affects_activity of

process

BDNF bioavailability

Comment BDNF is essential for the normal function and survival of neurons in mature peripheral and central nervous system. The availability of BNDF is also affected by the gut microbiota. In germ-free mice, the expression of BDNF was found to be decreased in the hippocampus, both at protein and mRNA levels, and this finding was significantly associated with impaired cognition in this animal model.
Formal Description
Interaction-ID: 96590

organism model

GF mouse

decreases_expression of

gene/protein

BDNF

in the hippocampus; both at protein and mRNA levels
Comment BDNF is essential for the normal function and survival of neurons in mature peripheral and central nervous system. The availability of BNDF is also affected by the gut microbiota. In germ-free mice, the expression of BDNF was found to be decreased in the hippocampus, both at protein and mRNA levels, and this finding was significantly associated with impaired cognition in this animal model.
Formal Description
Interaction-ID: 96591

phenotype

decreased BDNF expression

cooccurs with

phenotype

abnormal cognition

in germ-free mouse model
Comment The proliferation of gut microbiota in rats by the administration of prebiotic agents lead to increased expression of BDNF in the hippocampus and frontal cortex.
Formal Description
Interaction-ID: 96592

environment

prebiotic diet

increases_expression of

gene/protein

BDNF

in the hippocampus and frontal cortex of rats; via proliferation of gut microbiota in rats by the administration of prebiotic agents
Comment The proliferation of gut microbiota in rats by the administration of prebiotic agents lead to increased expression of BDNF in the hippocampus and frontal cortex.
Formal Description
Interaction-ID: 96593

environment

prebiotic diet

affects_activity of

tissue/cell line

hippocampus

in rats; via proliferation of gut microbiota and increased expression of BDNF
Comment The proliferation of gut microbiota in rats by the administration of prebiotic agents lead to increased expression of BDNF in the hippocampus and frontal cortex.
Formal Description
Interaction-ID: 96594

environment

prebiotic diet

affects_activity of

tissue/cell line

prefrontal cortex

in rats; via proliferation of gut microbiota and increased expression of BDNF
Comment Gut microbiota converts dietary polyphenols into phenolic acids, in the so-called metabolism of anthocyanidins.
Formal Description
Interaction-ID: 96595

environment

gut microbiota

decreases_quantity of

drug/chemical compound

Phenolic acid

via converting dietary polyphenols into phenolic acids, in the so-called metabolism of anthocyanidins
Comment Gut microbiota converts dietary polyphenols into phenolic acids, in the so-called metabolism of anthocyanidins.
Formal Description
Interaction-ID: 96596

environment

gut microbiota

affects_activity of

process

metabolism of anthocyanidins

via converting dietary polyphenols into phenolic acids, in the so-called metabolism of anthocyanidins
Comment It was demonstrated that probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state. In this study, the intervention group received 200 ml/day of probiotic milk containing three strains of Lactobacilli (Lactobacillus acidophilus, L. casei, and L. fermentum) and Bifidobacterium bifidum for twelve weeks; as compared to controls, subjects in the experimental group performed better in the Mini-Mental State Examination scores and had decrements in markers of inflammation state and insulin resistance.
Formal Description
Interaction-ID: 96597

environment

Lactobacillus acidophilus

increases_activity of

environment

Probiotics

probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state
Comment It was demonstrated that probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state. In this study, the intervention group received 200 ml/day of probiotic milk containing three strains of Lactobacilli (Lactobacillus acidophilus, L. casei, and L. fermentum) and Bifidobacterium bifidum for twelve weeks; as compared to controls, subjects in the experimental group performed better in the Mini-Mental State Examination scores and had decrements in markers of inflammation state and insulin resistance.
Formal Description
Interaction-ID: 96598

environment

Lactobacillus casei

increases_activity of

environment

Probiotics

probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state
Comment It was demonstrated that probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state. In this study, the intervention group received 200 ml/day of probiotic milk containing three strains of Lactobacilli (Lactobacillus acidophilus, L. casei, and L. fermentum) and Bifidobacterium bifidum for twelve weeks; as compared to controls, subjects in the experimental group performed better in the Mini-Mental State Examination scores and had decrements in markers of inflammation state and insulin resistance.
Formal Description
Interaction-ID: 96599

environment

Lactobacillus fermentum

increases_activity of

environment

Probiotics

probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state
Comment It was demonstrated that probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state. In this study, the intervention group received 200 ml/day of probiotic milk containing three strains of Lactobacilli (Lactobacillus acidophilus, L. casei, and L. fermentum) and Bifidobacterium bifidum for twelve weeks; as compared to controls, subjects in the experimental group performed better in the Mini-Mental State Examination scores and had decrements in markers of inflammation state and insulin resistance.
Formal Description
Interaction-ID: 96600

environment

Bifidobacterium bifidum

increases_activity of

environment

Probiotics

probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state
Comment It was demonstrated that probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state. In this study, the intervention group received 200 ml/day of probiotic milk containing three strains of Lactobacilli (Lactobacillus acidophilus, L. casei, and L. fermentum) and Bifidobacterium bifidum for twelve weeks; as compared to controls, subjects in the experimental group performed better in the Mini-Mental State Examination scores and had decrements in markers of inflammation state and insulin resistance.
Formal Description
Interaction-ID: 96601

environment

Probiotics

decreases_activity of

in AD patients; probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state
Comment It was demonstrated that probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state. In this study, the intervention group received 200 ml/day of probiotic milk containing three strains of Lactobacilli (Lactobacillus acidophilus, L. casei, and L. fermentum) and Bifidobacterium bifidum for twelve weeks; as compared to controls, subjects in the experimental group performed better in the Mini-Mental State Examination scores and had decrements in markers of inflammation state and insulin resistance.
Formal Description
Interaction-ID: 96602

environment

Probiotics

decreases_activity of

phenotype

insulin resistance

in AD patients; probiotic consumption by AD patients was associated with benefits to cognitive function and metabolic state
Comment Proinflammatory cytokines can be activated by gut microbiome through increased intestinal permeability, leading to the development of insulin resistance, which has also been associated with AD.
Formal Description
Interaction-ID: 96603

environment

gut microbiota

increases_activity of

phenotype

increased intestinal permeability

via activating pro-inflammatory cytokines
Comment Pro-inflammatory cytokines can be activated by gut microbiome through increased intestinal permeability, leading to the development of insulin resistance, which has also been associated with AD.
Formal Description
Interaction-ID: 96604

phenotype

increased intestinal permeability

increases_activity of

phenotype

insulin resistance

proinflammatory cytokines can be activated by gut microbiome through increased intestinal permeability
Comment Escherichia/Shigella amount correlated positively with the levels of pro-inflammatory cytokines in cognitively impaired patients.
Formal Description
Interaction-ID: 96605

environment

increased Shigella level

cooccurs with

phenotype

increased proinflammatory cytokine level

in cognitively impaired patients
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96606

gene/protein

Ghrelin

affects_activity of

process

regulation of food intake

involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96607

gene/protein

Ghrelin

affects_activity of

involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96608

gene/protein

Ghrelin

affects_activity of

involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96609

gene/protein

Ghrelin

affects_activity of

process

nervous function

particularly learning and memory
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96610

gene/protein

Ghrelin

affects_activity of

Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96611

gene/protein

LEP

affects_activity of

process

regulation of food intake

involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96612

gene/protein

LEP

affects_activity of

involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96613

gene/protein

LEP

affects_activity of

involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96614

gene/protein

LEP

affects_activity of

process

nervous function

particularly learning and memory
Comment Gut peptide hormones, such as ghrelin and leptin, are involved in the regulation of food intake and feeding behavior, being therefore implicated in energy homeostasis. Studies show that these factors also affect nervous functions, particularly learning and memory. Ghrelin is produced mainly by gastric oxyntic cells, devoid of contact with the gastrointestinal lumen, exerting therefore an endocrine role. Alternatively, this peptide is also produced by cells in the gastrointestinal tract with contact with the intestinal lumen, and therefore subject to the influence of the gut microbiota.
Formal Description
Interaction-ID: 96615

gene/protein

LEP

affects_activity of

Comment Changes in the gut microbiota as a consequence of antibiotic treatment has been associated with changes in plasma ghrelin level. Similarly, the modification of gut microbiota with probiotics has been show to promote increased availability of leptin in the serum.
Formal Description
Interaction-ID: 96616

environment

Probiotics

increases_quantity of

gene/protein

LEP

in plasma; via modification of gut microbiota with probiotics
Comment Changes in the gut microbiota as a consequence of antibiotic treatment has been associated with changes in plasma ghrelin level. Similarly, the modification of gut microbiota with probiotics has been show to promote increased availability of leptin in the serum.
Formal Description
Interaction-ID: 96617

environment

Probiotics

increases_activity of

environment

altered gut microbiota composition

Comment Ghrelin is involved in glucose and lipid metabolisms, with effects on mitochondrial respiration; it may also exert neuroprotective effects, illustrating the interaction between metabolism and mechanisms of neurodegeneration.
Formal Description
Interaction-ID: 96618

gene/protein

Ghrelin

affects_activity of

with effects on mitochondrial respiration
Comment Ghrelin and leptin increases the secretion of neurotrophic factors consequently modifying the toxicity of Abeta oligomers and phosphorylated tau levels in animal model.
Formal Description
Interaction-ID: 96619

gene/protein

LEP

increases_activity of

process

neurotrophic factor secretion

in animal models; consequently modifying the toxicity of Abeta oligomers and phosphorylated tau levels
Comment Animal models of AD treated with leptin showed a reduction in Abeta and phosphorylated tau levels.
Formal Description
Interaction-ID: 96620

gene/protein

LEP

decreases_quantity of

protein modification

MAPT-phos

in AD animal models
Comment In humans, plasma leptin concentration has been shown to be negatively correlated to Abeta levels, supposedly due to a direct inhibitory effect on gamma-secretase.
Formal Description
Interaction-ID: 96621

cooccurs with

phenotype

decreased Amyloid beta peptide level

in humans, in plasma; supposedly due to a direct inhibitory effect on gamma-secretase
Comment The administration of two strains of Bifidobacteria (B. longum and B. breve) for eleven weeks to BALB/c mice facilitated cognitive processes such as learning, memory and recognition ability.
Formal Description
Interaction-ID: 97914

environment

Bifidobacterium breve

increases_activity of

in BALB/c mice
Comment BDNF is essential for the normal function and survival of neurons in mature peripheral and central nervous system. The availability of BNDF is also affected by the gut microbiota. In germ-free mice, the expression of BDNF was found to be decreased in the hippocampus, both at protein and mRNA levels, and this finding was significantly associated with impaired cognition in this animal model.
Formal Description
Interaction-ID: 136238

organism model

GF mouse

decreases_quantity of

gene/protein

BDNF

in the hippocampus; both at protein and mRNA levels