Gut Microbiota

Gut bacteria identified in colorectal cancer patients promote tumourigenesis via butyrate secretion

Emerging evidence is revealing that alterations in gut microbiota are associated with colorectal cancer (CRC). However, very little is currently known about whether and how gut microbiota alterations are causally associated with CRC development. Here we show that 12 faecal bacterial taxa are enriched in CRC patients in two independent cohort studies. Among them, 2 Porphyromonas species […]

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Investigating Casual Associations among Gut Microbiota, Metabolites and Neurodegenerative Diseases: A Mendelian Randomization Study

Our study firstly applied a two-sample MR approach to detect causal relationships among gut microbiota, gut metabolites and the risk of AD, PD and ALS, andwe revealed several causal relationships. These findings may provide new targets for treatment of these neurodegenerative diseases, and may offer valuableinsights for further researches on the underlying mechanisms. In summary,

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The Effect of a Probiotic Complex on the Gut-Brain Axis: A Translational Study

A significant improvement of cognitive functions, in terms of short-termmemory, attention, and executive performance, as well as ofpsychophysiological markers, such as salivary cortisol level,skin conductance, sleep quality, and anxiety, were observed.Conclusions: According to the results, L. reuteri PBS072 andB. breve BB077 are potential probiotic candidates for improving stress resilience, cognitive functions, and sleep quality CLICK

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The effects of coffee consumption and antibiotic use on gut microbial community structure of Parkinson’s disease patients

Parkinson’s disease (PD) is a complex brain disorder involving a multitude ofcontributing factors ranging from environmental to genetic. Interestingly, it has been foundthat the gut microbial community is altered in PD patients when compared to that of non-PDindividuals. However, the factors contributing to altered gut microbiota remain largelyunexplored. As such, the first objective of our

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The effect of oral butyrate administration on the release of serotonin and dopamine in the gastrointestinal trac

The microbiota-gut-brain axis is a modern concept with wide and physiologically important effects.The aim of the study was to investigate if an orally given short chain fatty acid (SCFA), butyrate,stimulates the formation and release of serotonin and dopamine in an in vivo rat model. The effect ofbutyrate was investigated in the entire gastrointestinal tract since

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Vitamin C Supplementation in Healthy Individuals Leads to Shifts of Bacterial Populations in the Gut—A Pilot Study

Daily supplementation of high-dose vitamin C led to an increase in the relative abundances of Lachnospiraceae (p < 0.05), whereas decreases were observed for Bacteroidetes (p < 0.01), Enterococci (p < 0.01) and Gemmiger formicilis (p < 0.05). In addition, trends for bacterial shifts were observed for Blautia (increase) and Streptococcus thermophilus (decrease). High-dose vitamin

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Genetic and environmental factors in Alzheimer’s and Parkinson’s diseases and promising therapeutic intervention via fecal microbiota transplantation

The gut microbiota provides potential therapeutic targets that can be regulated as new interventions for neurodegenerative diseases. In this review, we discuss genetic and environmental risk factors for neurodegenerative diseases, summarize the communication among the components of the microbiota-gut-brain axis, and discuss the treatment strategy of fecal microbiota transplantation (FMT). FMT is a promising treatment

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Gut brain axis: an insight into microbiota role in Parkinson’s disease

The gut-brain axis is a two-way communication system, which explains how through the vagus nerve, the gut microbiota can affect the central nervous system (CNS), including brain functions related to the ENS, as well as how CNS can alter various gut secretions and immune responses. As a result, this dysbiosis or alteration in gut microbiota

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Interactions between the microbiota and enteric nervous system during gut-brain disorders

The ENS, which is known as the “second brain”, could be under the direct or indirect influence of the gut microbiota and its released factors (short-chain fatty acids, neurotransmitters, gaseous factors, etc.). Thus, in addition to their actions on tissue (adipose tissue, liver, brain, etc.), microbes can have an impact on local ENS activity. This potential

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IMPACT OF THE SHORT – CHAIN FATTY ACIDS ON THE MICROBIOTA – GUT – BRAIN AXIS

Studies show that short – chain fatty acids have differenteffects by increasing or decreasing the quantity of certain molecules such as GLP-1,peptide YY, insulin, glucagon, ghrelin, leptin and serotonin while they also have animpact on the nervous system. Also is needed to emphasize its role in certainneurological diseases such as Parkinson, autism spectrum disorder and

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