Newly discovered virus linked to colorectal cancer: Scientists discovered a new and previously undescribed virus that infects gut bacteria in patients with colorectal cancer. The virus is found significantly more often in patients with colorectal cancer.

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Here are five hashtags for your post:#colorectalcancer #gutvirus #microbiome #cancerresearch #newvirus

🔬 Research published Thursday in Communications Biology found that at-home gut health tests from seven different companies yielded dramatically different results when given identical standardized fecal samples.

🔬 One company's tests could not consistently determine if the same samples belonged to a healthy microbiome or not, highlighting a lack of reliability in current direct-to-consumer offerings.

🔬 Scientists from the National Institute of Standards and Technology (NIST) and the University of Maryland suggest these tests should not be heavily relied upon for health decisions, citing cases where individuals made potentially dangerous changes to diet or underwent treatments based on inconclusive results.

#GutHealth #Microbiome #HealthTech

🦠 Gut and Mouth Bacteria May Help Neutralize Peanut Allergies: A new study highlights two microbes, Rothia and Staphylococcus, found naturally in humans, that can break down proteins triggering severe peanut allergic reactions.

🧪 Microbiome Levels Linked to Allergy Severity: Research on 19 children with peanut allergies found that those with higher levels of these protein-breaking bacteria in their gut and mouth showed better tolerance and less severe reactions to peanuts.

🔬 Mouse Studies Show Protective Effects: Experiments on mice prone to peanut anaphylaxis demonstrated that introducing Rothia significantly reduced their allergic reactions, suggesting a potential for microbial intervention.

🤔 Future Therapeutic Potential, But More Research Needed: While promising, these findings are observational in humans, and further clinical testing is required to explore safe and effective probiotic treatments for peanut allergies.

#PeanutAllergy #GutHealth #Microbiome

🔬 Antibiotics can impact gut bacteria for 4-8 years after treatment, even after a single course, affecting microbiome diversity.

🔬 A study of 14,979 Swedish adults found strong links between antibiotic use history and current gut microbiome composition.

🔬 Certain antibiotics like clindamycin and fluoroquinolones show stronger associations with lasting microbiome changes compared to penicillin V.

#Antibiotics #GutHealth #Microbiome

🦠 Live bacteria can travel directly from the gut to the brain via the vagus nerve when the intestinal barrier weakens.

🔬 Research published in PLOS Biology used mice on a high-fat diet, revealing bacteria like Staphylococcus migrated from intestines to the brain, bypassing the bloodstream.

🧠 This pathway might explain how digestive health influences neurological conditions like Alzheimer's and autism, especially in mouse models of these diseases.

#GutBrainAxis #Neuroscience #Microbiome

Epigenetics at Birth Links Microbiome to Neurodevelopment, Potentially Autism and ADHD - An infant’s gut microbiome and specific epigenetic changes were associated with signs of autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD) when the children were 3 years old.

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#Epigenetics #Microbiome #ASD ADHD

Global DNA study: where you live may change how fast you age. Ethnic background leaves a deep mark on your immune system, metabolism and gut bacteria no matter where you move: East Asians outside Asia were biologically older than those in Asia, Europeans showed the opposite pattern

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#Aging #DNA #Microbiome

Even mild blows to the head disrupt the microbiome

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#BrainHealth #Microbiome #TraumaticBrainInjury

🦠 Exposure to the intestinal helminth Heligmosomoides polygyrus bakeri (Hpb) alters Th17 cell behavior. It reduces the number of Th17 cells that produce inflammatory molecules like IFN-γ and increases those producing regulatory molecules like IL-10 and Foxp3.

🔬 These altered Th17 cells, influenced by helminth infection, demonstrate increased suppressor activity. When tested in a mouse model of colitis, they significantly reduced the severity of the inflammatory disease.

📈 The findings suggest that helminth infections can skew the plasticity of Th17 cells from an inflammatory profile toward a regulatory one, potentially contributing to the reduced incidence of autoimmune and inflammatory diseases in populations with more exposure to parasites.

#Immunology #HealthTech #Microbiome

New review proposes a gut-brain-immune framework for chronic constipation, linking microbiota, barrier function, and the enteric nervous system

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#GutBrainAxis #Microbiome #ConstipationResearch

🔬 University of Gothenburg study finds clear links between gut bacteria and frailty in older women. Lower bacterial diversity and impaired function are associated with higher frailty, increasing risk of illness and death.

🌍 These findings, based on 2,081 Swedish women (aged 75-80) and confirmed by a 1,448-person Chinese cohort, suggest gut microbiota reflects frailty.

📊 A higher "Frailty Mortality Index" (FMI) linked to lower microbial diversity, fewer microbial genes, and reduced predicted gut function, which in turn are tied to physical function, mortality, and fall injuries.

💡 Researchers identified 404 bacterial species linked to frailty, with many associations replicated in the Chinese cohort, pointing to potentially shared microbial signatures across populations.

#GutHealth #AgingResearch #Microbiome

'Natural Protection From Asthma And Allergies': Scientists Isolate Bacteria Behind The Immune System Farm Effect. The nine bacteria linked to the farm effect made up 6% of the relative abundance of microbes in mattress dust, but 25% in the cow shed samples.

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#AsthmaResearch #Microbiome #FarmEffect

House dust from dog-owning homes contained microbes linked to fewer respiratory infections in babies

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#Microbiome #HouseDust #ChildHealth

🐶 Dog Dust & Baby Health: A Finnish study of 368 newborns suggests dog-associated microbes in household dust may explain up to 25% of the association between dog ownership and fewer respiratory infections in a baby's first year.

🏠 Microbial Environment: Researchers collected dust from homes at two months postpartum and analyzed bacteria and fungi. Early childhood exposure to microbes, including those from pets, is crucial for immune system development.

🔬 Asthma Link: While one study indicated dog exposure didn't worsen existing asthma in children aged 3-16, another suggested it was linked to a modest increase in exacerbations. Further research is needed to clarify causal effects.

✨ Urban Inflammation: A 2025 study found that growing up with pets in urban settings may protect against chronic inflammation by increasing exposure to co-evolved microbes ("old friends").

#PetHealth #ChildhoodDevelopment #Microbiome

Gut bacteria linked to key brain chemicals in first-of-its-kind human study. The relationship between the gut microbiome and brain chemistry was not uniform across the brain. Instead, different microbial pathways were associated with GABA, glutamate and E/I balance in different brain regions.

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#GutBrainAxis #Microbiome #BrainChemistry

🧠 New human study links gut bacteria to brain chemicals, specifically GABA and glutamate, key for brain function and mental health.

🔬 Researchers found different gut microbial pathways associated with brain chemical levels in specific brain regions, including the visual processing area (inferior occipital gyrus) and regions involved in attention and emotion regulation.

📊 The study also identified associations between gut microbial pathways and self-reported anxiety, depressive symptoms, and sleep quality.

⚠️ Important Note: This study shows associations, not cause and effect, and used genetic potential of microbes rather than directly measured metabolites.

#GutHealth #BrainHealth #Microbiome

Prevalence and chronology of colibactin-associated mutational processes and their microbiome spectra in Japanese colorectal cancer

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#Colibactin #ColorectalCancer #Microbiome

From gut to brain: data-driven evidence suggests causal contribution of gut-microbiota to major depressive disorder in humans. The study found evidence for gut microbes Eggerthella and Hungatella as potential causal contributors to MDD.

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#GutBrainAxis #Microbiome #DepressionResearchers

A study tracking 9,419 meals in 173 patients suggests cutting sugar intake before and during antibiotic treatment may help protect the gut microbiome, with lower sugar intake linked to less microbial diversity loss and mouse experiments suggesting a protective effect.

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#GutHealth #Antibiotics #Microbiome

🧠 A new study in PLOS ONE suggests a link between tongue bacteria and processing speed in 60 healthy adults (UK & Belgium). Certain bacteria, like Prevotella histicola, were associated with faster responses on cognitive tests.

🧪 Researchers investigated if mouth microbes influence memory and attention, noting bacteria help convert nitrates (found in foods like beetroot) into nitric oxide, which widens blood vessels.

📊 The study, led by Joanna E. L'Heureux, involved younger (20s) and older (60s/70s) adults. While age was the strongest predictor of cognitive performance, specific bacteria showed varied associations with memory, attention, and processing speed.

🔬 Findings are exploratory, with only 30 participants per country. Further research is needed to confirm these statistical links and explore potential causal relationships between oral bacteria and cognitive function.

#Microbiome #CognitiveHealth #ScienceNews