Articles tagged with Gut Microbiota
Researchers found that an imbalanced gut microbiome escalates the production of metabolic byproducts, driving a feedback loop that worsens CKD. Blocking a single enzyme in the gut stopped this cycle, suggesting iNOS as a potential target for treatment.
A study by Florida Atlantic University researchers has uncovered the impact of stress on wild songbirds, finding that even mild challenges can alter the gut microbiome, leading to changes in health indicators such as beak color and stress hormone levels.
A high-fat diet allows bacteria to move from the gut to the brain in mice, according to a new study. Researchers found that a small number of bacteria translocated to the brain, likely via the vagus nerve, and that these bacteria were also detected in mouse models of Alzheimer's, Parkinson's, and autism.
Researchers studied the Seychelles warbler's gut bacteria, finding that immune genes influence which microbes thrive, and that this relationship affects host health and survival. The study suggests a two-way relationship between immune genes and gut bacteria, with potential benefits for human health and disease prevention.
Researchers discovered that the aging gastrointestinal tract produces specific molecules that blunt the activity of a key gut-brain neuronal pathway, leading to age-related cognitive decline. Stimulating specific gut sensory neurons and targeting the vagus nerve can restore youthful cognitive function in old mice, suggesting that brain...
Researchers genetically modified a probiotic yeast to reduce its virulence in immunocompromised patients. The modified yeast was found to be less likely to cause infection, with improved survival rates in animal models.
Emerging research reveals the gut microbiota plays a decisive role in shaping treatment outcomes for cancer immunotherapy. Beneficial bacteria enhance anti-tumor immunity by producing immune-active metabolites and activating key immune cells.
Recent studies identify distinct gut microbial communities in people with dyslipidemia, suggesting a connection between the gut microbiome and heart disease precursor. The researchers found higher levels of Bacteroides caccae and lower levels of bacteria linked to metabolic stability. Future research aims to restore functional balance ...
Researchers found that specific gut bacteria can sense diet and translate information into signals that tell fat cells to burn energy. A low-protein diet activated precise gut microbes that promote beige fat production, leading to improved glucose control and lower cholesterol levels.
Researchers discover that butyric acid, a gut microbiota-derived metabolite, enhances the activity of natural killer cells expressing CX3CR1, restoring immune cell migration and cytokine production. This gut-lung immune axis may be harnessed to improve outcomes in severe bacterial infections.
A new study reveals that fecal transplants from older female mice significantly improve ovarian function and fertility in young mice. The transplants show a direct link between the gut microbiome and ovarian health, with potential implications for fertility and overall health as women age.
Researchers at Rutgers University created a new metric called the Ecological Network Balance Index to track how gut bacterial communities shift between health and disease. The index consistently separated healthy individuals from patients with multiple diseases, including colorectal cancer.
Recent studies show that T cells support milk production and have lasting effects on maternal health and infant immunity. The review highlights emerging evidence of the crucial role of immune cells in lactation, which can inform strategies to improve maternal and infant health outcomes.
Researchers at Houston Methodist found that short-term antibiotic treatment significantly reduced neuroinflammation and neurodegeneration following traumatic brain injury by altering the gut microbiome. Beneficial bacteria Parasutterella excrementihominis and Lactobacillus johnsonii drove cell repair, while reducing harmful gut bacteria.
A global team of scientists, led by University of Houston microbiologist Madhan Tirumalai, has identified the critical role of biofilms in human space exploration. Biofilms could influence astronaut health, drug delivery and space agriculture, while also posing risks to astronaut health.
A study in Science reveals that a healthy gut microbiota enhances immunotherapy's efficacy against cancer, while antibiotics reduce diversity and may impair treatment. Analysis found specific bacterial species associated with better clinical outcomes.
Research found that people living in deprived areas have less diverse gut microbiomes, leading to increased inflammation and poorer metabolic health. The study identified 12 bacterial species associated with deprivation, including those negatively linked to anxiety and diabetes.
Researchers identified genes that are activated when yeast cells are in the gut, suggesting a roadmap for engineering more efficient drug-delivery vehicles. The study found that yeast cells were digesting more lipids than carbohydrates in the gut, highlighting potential modifications to improve efficiency.
A new study reveals that a high-fat, high-sugar diet during early life can lead to long-lasting changes in feeding behavior and disrupt brain pathways involved in appetite control. However, targeting the gut microbiota with specific strains of beneficial bacteria or prebiotic fibers may help mitigate these effects.
Two gut bacteria, Akkermansia muciniphila and Bacteroides thetaiotaomicron, work together to destroy intestinal mucus, leading to dry and immobile stool. This discovery explains why standard treatments often fail for millions with chronic constipation, including those with Parkinson's disease.
A new study uses metabolic modeling to predict which probiotics will successfully establish themselves in a person's gut and how prebiotics affect short-chain fatty acid production. The findings demonstrate the utility of these models for personalized probiotic and prebiotic interventions.
A global atlas mapping two key gut bacteria has uncovered a treasure trove of bacterial strains adapted to the infant gut, not found in commercial probiotic products. The study reveals region-specific strains that have naturally evolved to thrive in a baby's microbiome, shaped by regional diets and environments.
A new study finds salcaprozate sodium may have adverse biological effects on the gut and beyond, including shifts in potentially harmful gut bacteria and elevated inflammatory markers. The research highlights an important gap in understanding the long-term impact of repeated SNAC exposure.
Researchers identified 11 genetic regions influencing gut bacteria and roles they play, including connections to gluten intolerance, haemorrhoids, and cardiovascular diseases. The study analyzed genetic data from over 28,000 individuals, providing insights into the complex relationship between genes and gut microbiome.
A study by NYU researchers found that children with Crohn’s disease have a unique microbiome signature, characterized by more pro-inflammatory and less protective bacteria. This could lead to personalized treatments for pediatric Crohn’s disease.
Researchers at Weill Cornell Medicine discovered that food shortages trigger a coordinated system to uphold immune function while conserving energy. Calorie-restricted mice fought off infection using very little glucose, thanks to glucocorticoids, which reorganized immune cells and their energy usage.
Researchers developed wearable devices that track hydrogen levels in flatus to better understand gut microbial metabolism. The Human Flatus Atlas project aims to establish normal ranges for flatulence production, helping to identify excessive gas complaints and inform dietary interventions.
Blautia luti produces formic acid as an electron taxi, bypassing the energetically costly production of hydrogen. The bacterium detoxifies formic acid via a special metabolic pathway, linked to sugar breakdown and acetic acid production.
A study published in Microbiome found that gut microbiome-derived butyrate activates immune cells to enhance vaccine efficacy by promoting T follicular helper (Tfh) cell activity and mucosal antibody production. This discovery highlights the crucial role of gut environment regulation in controlling infections and enhancing vaccine resp...
Researchers found that certain gut bacteria can deplete amino acids, affecting tumor growth or activating immune cells. Tailoring diets and microbiome strategies may enhance anti-tumor activity and support personalized therapy.
A study published in Science of The Total Environment found that e-cigarette exposure alters gut microbiota composition and affects neurobehavior in zebrafish. The researchers observed disruptions in the gut microbiome, with reduced microbial network stability and altered community composition, suggesting potential health risks.
A new study reveals how Parkinson's spreads from the gut to the brain via immune cells, identifying a key role for gut macrophages in transporting toxic proteins. Reducing these cells can slow disease progression and improve motor symptoms in mice.
Researchers found that six species exhibited little to no evidence of phylosymbiosis, while five closely related bovids showed patterns consistent with the concept. Drier environments may reveal phylosymbiosis due to reduced microbial diversity.
Researchers at NUS Medicine discovered that genetic vectors can efficiently spread antibiotic resistance within the gut, enabling even highly virulent bacteria to acquire drug resistance. This finding sheds light on the emergence of 'superbugs' in healthcare settings.
Researchers at UC Riverside find that faulty gene PTPN2 increases susceptibility to harmful bacteria like AIEC, leading to gut inflammation and IBD. The studies suggest that restoring PTPN2 function or using medications like JAK inhibitors may help control harmful bacterial growth.
Research reveals that chemotherapy alters the gut microbiota, producing indole-3-propionic acid, which travels to the bone marrow and rewires immune cell production. This leads to a metastasis-refractory state in preclinical models and improved survival outcomes in patients with colorectal cancer.
Researchers have found that chemicals in exhaled breath can reveal the composition of the bacteria living in the intestines, providing a potential non-invasive test for monitoring and diagnosing gut health issues. Breath samples from children with asthma were able to predict the presence of the bacterium linked to the condition.
Fecal microbiota transplantation (FMT) holds promise in treating chronic liver diseases by restoring gut-liver axis balance. The consensus recommends FMT for various etiologies, excluding drug-induced liver injury, with strict donor selection and management guidelines to ensure safety.
Researchers discovered a probiotic strain, Bifidobacterium animalis subsp. lactis B960, that enhances the glucose-lowering effects of glibenclamide with minimal degradation. This combination therapy reduces fasting blood glucose levels and improves pancreatic function while alleviating hepatotoxicity.
Researchers found that hot spring bathing in Japanese macaques subtly reshapes their relationships with parasites and gut microbes. The study suggests that behavior can shape the animal holobiont and act as an important driver of animal health.
A study from the University of Oklahoma suggests that maternal indole supplementation can significantly reduce the risk of fatty liver disease in children. The research found that offspring whose mothers received indole maintained healthier livers and had lower blood sugar levels, even after exposure to a Western-style diet later in life.
Researchers have identified a previously unknown mechanism that can reduce the risk of allergies and asthma in children. Certain bifidobacteria produce a substance called 4-hydroxyphenyl lactate (4-OH-PLA), which dampens immune responses to allergens, reducing the production of IgE antibodies.
A recent review of bamboo consumption found promising health benefits, including improved metabolic health, reduced inflammation, and antioxidant activity. However, caution is advised due to potential risks associated with raw or improperly prepared bamboo.
Researchers analyzed faecal samples from 82 captive and 16 wild marsupials, revealing new microbial species and antimicrobial resistance. The study found that host family, location, and diet contributed to variance between different microbiomes.
Researchers at Georgia State University found that segmented filamentous bacteria (SFB) provide marked protection against post-influenza bacterial pneumonia in mice. SFB reprograms alveolar macrophages to resist influenza virus-induced dysfunction, maintaining their defense against respiratory bacterial pathogens.
A new study reveals that people with an unexpectedly high metabolic BMI have up to a five times higher risk level for diseases such as diabetes and fatty liver. Metabolic BMI is based on advanced metabolomic analyses and identifies obesity-linked changes in metabolism that can be present even at normal weight.
Researchers identified specific gut bacteria and metabolic pathways that drive alcohol production in patients with auto-brewery syndrome, a rare condition causing intoxication without drinking. A stool-based test may serve as an alternative to monitored blood alcohol testing for diagnosis.
A study of over 300 stool samples found that gut-microbe-derived bile acids may play a role in shaping the immune system during early childhood. The findings suggest an imbalance in how gut microbes co-produce these compounds, which could link to signs of type 1 diabetes.
A new study maps the impact of stressors during pregnancy on the developing fetal brain, revealing a cell atlas and identifying key immune pathways. The research sheds light on how maternal gut-immune disruptions can shape neurodevelopmental disorders in children.
A groundbreaking study from Northwestern University found that changes to the gut microbiome can change the way the brain works across different primate species. The researchers discovered patterns of gene expression associated with conditions like ADHD and schizophrenia in mice with microbes from smaller-brained primates.
A new international study found significant changes in gut bacteria at the onset of inflammatory bowel disease (IBD), a condition that affects the digestive system. The study reveals a loss of beneficial anaerobic bacteria and an increase in oxygen-tolerant bacteria, which may trigger inflammation.
Research reveals that low doses of nanoplastics can alter gut and liver function, with diet playing a key role. The study found that exposure to nanoplastics disrupted fat metabolism and glucose intolerance, especially in mice on Western-style diets.
Estrogen activates previously unknown pathways in the colon, triggering pain and increasing sensitivity to certain foods. This explains why women are more likely to suffer from IBS and provides potential new ways to treat the condition.
A recent rat study found that an individual's genes can shape their own gut microbiome as well as the microbiomes of those they live with. The research identified three new gene-microbe links and demonstrates how genetic influences can ripple through social groups via shared microbes
A UCLA study found that gut microbes are evolving differently in industrialized and non-industrialized parts of the world. Gene variants associated with starch digestion have
Researchers identified a specific type of gut bacteria, Turicibacter, that promotes metabolic health and reduces weight gain in mice. The bacterium produces fatty molecules that are absorbed by the small intestine, improving ceramide levels and preventing excessive weight gain.
The Algae for Health in Food and Pharma summit explores the latest developments in algae cultivation and processing, food innovation, and pharmaceutical applications. The event aims to advance the understanding of algae's health potential and highlight its applications across the food and pharmaceutical sectors.
Researchers have discovered that certain gut bacteria with similar structures to the protective layer of nerves can misdirect the immune system and cause it to attack its own nervous system. This mechanism accelerates the progression of multiple sclerosis.
Researchers have developed a new test that uses microbes to determine the age of termite droppings, allowing for rapid on-site infestation assessments. The study found that the amount of DNA from E. coli bacteria in the pellets decreases significantly over time, with a nearly 190-fold drop by the 12-month mark.
Research reveals that Methanogenic archaea, particularly M. smithii, play a crucial role in postnatal growth retardation by depleting β-hydroxybutyrate levels and inducing liver inflammation. Transplanting fecal microbiome from PGR piglets to mice confirms the same phenotypes.