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microbiome

·January 18, 2025·7 min read

Processed Red Meat Linked to Higher Dementia Risk

A study of over 133,000 individuals found that consuming processed red meat daily increases dementia risk by up to 13%, while replacing it with alternatives like nuts, legumes, or fish may lower the risk by 20%. Higher processed meat intake was associated with accelerated cognitive aging and increased subjective cognitive decline (SCD).

Featured Neuroscience

·January 4, 2025·4 min read

Mediterranean Diet Improves Memory via Gut Microbiome Changes

A new study reveals that the Mediterranean diet may enhance cognitive function by altering gut microbiota. Rats fed a Mediterranean-style diet showed distinct bacterial changes linked to better memory, cognitive flexibility, and working memory compared to those on a Western diet.

Featured Neurology Neuroscience

·December 20, 2024·8 min read

Chronic Gut Virus May Play a Role in Alzheimer’s Development

Researchers have linked chronic intestinal infections caused by cytomegalovirus (HCMV) to a unique subtype of Alzheimer’s disease. The virus may travel from the gut to the brain via the vagus nerve, altering immune responses and contributing to hallmark Alzheimer’s changes like amyloid plaques and tau tangles. While HCMV infection is common and typically harmless, this study found that it may cause chronic brain inflammation in certain individuals.

Featured Neuroscience Psychology

·December 12, 2024·8 min read

Gut Serotonin Plays Role in Depression and Mood

Serotonin in the gut epithelium plays a critical role in modulating mood and may provide a safer target for treating depression and anxiety. In animal studies, increasing gut serotonin improved mood symptoms without causing digestive issues, unlike systemic antidepressant treatments.

Featured Neuroscience

·December 3, 2024·5 min read

Gut Microbes May Have Powered Evolution of Larger Brains

A new study suggests that gut microbes played a key role in the evolution of larger brains in primates by influencing energy production and usage. Researchers implanted microbes from humans, squirrel monkeys (large-brained species), and macaques (small-brained species) into mice, observing that microbes from larger-brained primates enhanced energy production, while those from smaller-brained primates favored fat storage.

Featured Neuroscience

·December 2, 2024·6 min read

Personal Gut Environments Shape How We Digest, Absorb Food

Individual differences in gut physiology and environment play a major role in shaping our gut microbiome and how we process food. Using a smart capsule to measure pH, temperature, and pressure, researchers found significant variations in digestion time and gut conditions between people.

This shows chemical imaging of the microbiome.

Featured Neurology Neuroscience

·November 21, 2024·5 min read

Parkinson’s Medication Alters Microbiome, Induces Iron Deficiency

The Parkinson's drug entacapone disrupts the gut microbiome by inducing iron deficiency, favoring the growth of potentially harmful bacteria like E. coli. Using advanced molecular techniques, researchers identified that entacapone interferes with iron availability, a critical resource for many gut microbes.

Featured Neurology Neuroscience

·November 21, 2024·4 min read

Stimulating the Vagus Nerve to Tackle Gut Inflammation in IBD

Researchers have discovered that vagus nerve stimulation may reduce gut inflammation and improve outcomes for inflammatory bowel disease (IBD). The study reveals how electrical stimulation of this brain-gut nerve impacts SUMOylation, a cellular process driving immune responses, to alleviate symptoms and promote healing.

Featured Neuroscience

·November 14, 2024·3 min read

Microbial Load, Not Disease, Shapes Gut Microbiome Signatures

A new study reveals that changes in gut microbial load, influenced by factors like diet, age, and antibiotics, drive the presence of bacteria previously linked to diseases such as inflammatory bowel disease and colorectal cancer. Using a machine learning model, researchers found that microbial load variations explained bacterial signatures in patients' microbiomes more strongly than the diseases themselves.

Featured Neuroscience

·November 7, 2024·5 min read

Gut Bacteria Could Hold the Key to Promoting Healthy Aging

Certain gut bacteria may play crucial roles in aging, with implications for promoting healthier aging. Research conducted on over 200 octogenarians found a decline in key bacteria, such as Faecalibacterium prausnitzii, and a compensatory increase in other species that help maintain gut health.

Featured Neuroscience Psychology

·November 5, 2024·5 min read

Gut Bacteria Modulate Stress Responses Over Time

New research has unveiled how gut bacteria play a key role in regulating stress by interacting with circadian rhythms, opening possibilities for microbiome-based therapies for mental health. Researchers found that depletion of certain gut bacteria can lead to time-specific increases in stress responses through the HPA axis, the body's central stress response system. Specific bacteria, such as Limosilactobacillus reuteri, were identified as crucial to modulating stress hormones throughout the day.

Featured Neurology Neuroscience

·November 4, 2024·4 min read

Keto Diet May Ease Multiple Sclerosis Symptoms

New research suggests the ketogenic diet could help manage multiple sclerosis (MS) by promoting the production of beneficial compounds in the gut. In a study, mice on a keto diet produced the ketone body β-hydroxybutyrate (βHB), which worked with gut bacteria to create immune-modulating metabolites.

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microbiome

Processed Red Meat Linked to Higher Dementia Risk

Mediterranean Diet Improves Memory via Gut Microbiome Changes

Chronic Gut Virus May Play a Role in Alzheimer’s Development

Gut Serotonin Plays Role in Depression and Mood

Gut Microbes May Have Powered Evolution of Larger Brains

Personal Gut Environments Shape How We Digest, Absorb Food

Parkinson’s Medication Alters Microbiome, Induces Iron Deficiency

Stimulating the Vagus Nerve to Tackle Gut Inflammation in IBD

Microbial Load, Not Disease, Shapes Gut Microbiome Signatures

Gut Bacteria Could Hold the Key to Promoting Healthy Aging

Gut Bacteria Modulate Stress Responses Over Time

Keto Diet May Ease Multiple Sclerosis Symptoms

Daily Steps Tied to Lower Teen Depression

How the Body Clock and Cold Team Up to Burn Fat

Why Cannabis Can Suddenly Trigger Panic

Can an AI Ever Truly Be “Conscious” in the Eyes of Humans?

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