Articles tagged with Human Gut Microbiota
A new study found that 18 drug categories extensively impact the taxonomic structure and metabolic potential of the gut microbiome. Researchers identified eight categories increasing antimicrobial resistance mechanisms. The changes could increase risk of intestinal infections, obesity, and other conditions linked to the gut microbiome.
A new study from Northwestern University suggests that human ecology has played a more significant role in shaping the human gut microbiome than genetic relationships. The research found that the human gut microbiome is more similar to that of Old World monkeys like baboons than apes like chimpanzees.
A new mouse study shows that disrupting the daily routine of gut microbes in mice increases the risk for metabolic dysfunction and obesity. The findings suggest a link between microbiota damage and human obesity, particularly in modern environments with antibiotics or long-distance jet travel.
Researchers discovered a bacterial enzyme that removes Neu5Gc from cells, potentially preventing inflammatory diseases. A new type of sialidase was found in the gut microbiomes of mice fed with red meat-like diet, which can be leveraged to strip away animal carbohydrates.
Researchers identified differences in gut microbiome composition between physically high-functioning and low-functioning older adults. The study suggests that the gut microbiome plays a role in maintaining muscle strength in older adults, with mice colonized with fecal samples from high-functioning individuals showing increased grip st...
A world first study reveals how gut bacteria influence blood sugar levels by communicating with cells producing serotonin in the host body. The microbiome worsens metabolism by driving up serotonin levels, leading to significant metabolic problems.
Researchers at Brown University discovered that diet can mitigate or exacerbate changes in the gut microbiome caused by antibiotics. In a mouse study, diet high in fiber and low in simple sugars protected certain beneficial bacteria from antibiotic harm.
A team of researchers at George Washington University published a comprehensive list of the types and ratios of microbes that inhabit a healthy human gut, known as GutFeelingKB. This database will serve as a reference for doctors, patients, and researchers, providing an understanding of what constitutes a 'normal' human microbiome.
A new reference database for a healthy human gut microbiome has been compiled by researchers, providing insights into the types of microorganisms present in humans. The database, called GutFeelingKB, contains information on 157 organisms across 60 distinct genera, with certain bacteria, such as Firmicutes and Clostridia, being dominant.
A new study found that a special diet can alter the gut microbiome in dogs with Crohn's-like disease, mirroring changes seen in children with the condition. The diet-induced changes led to increased production of secondary bile acids, which alleviated disease symptoms.
Researchers found that oral antibiotics can alter human immune responses to seasonal influenza vaccination, potentially hindering protection against infection. Antibiotics also promoted pro-inflammatory states in the body, similar to conditions seen in older adults who have received influenza vaccines.
A comprehensive catalogue of human digestive tract bacteria has been identified, revealing novel interactions and associations between bacterial strains and health outcomes. The study provides a foundation for future research into the mechanisms underlying microbiome dynamics and their impact on human health.
Research reveals that diet can alter the effectiveness of metformin, a type-2 diabetes drug, by influencing gut bacteria. The study found that specific nutrients can either enhance or suppress these effects, highlighting the importance of dietary guidance for improved treatment outcomes.
Researchers found altered gut microbiota in sepsis patients, leading to more severe liver damage in mice. The study suggests that transplantation of healthy feces may help treat sepsis in intensive care units.
Researchers developed molecules that can change unhealthful gut microbiomes into more healthful ones in mice, reducing cholesterol levels and inflammation. The study could lead to new treatments for chronic diseases related to diet.
A new index developed from the skin microbiome of children can identify eczema and predict treatment response. The Microbial Index of Skin Health (MiSH) achieved high accuracy in identifying skin conditions across different cities, paving the way for precise skin care.
A new Northwestern University study discovered that spaceflight consistently changes the abundance and diversity of gut bacteria in mice. Using a novel analytical tool called STARMAPS, researchers found that spaceflight causes a specific change on the microbiome, but ruled out radiation as the cause.
B. infantis EVC001 demonstrates improved metabolism of protein-bound glycans from human milk, providing a basis for facilitating colonization in formula-fed infants. The study's findings suggest that N-glycans from milk glycoproteins contribute to B. infantis EVC001 colonization in the infant gut.
Researchers developed a new mouse model called 'wildling,' which acquired microbes and pathogens from wild mice while maintaining laboratory genetics. The study found that wildlings mirrored human immune responses, were stable in their microbiota, and predicted human immune responses with accuracy.
Researchers discovered that the cuttlefish has a simple microbiome containing only two families of bacteria: Vibrionaceae and Piscirickettsiaceae. The most dense community of microbes was found in the esophagus, contradicting previous assumptions about where microbe populations would thrive.
A new study reveals that T follicular helper cells shield mice from obesity by promoting IgA antibody production, which suppresses lipid absorption. This discovery highlights the immune system's role in regulating the gut microbiome and offers potential for novel treatments against metabolic diseases.
A team of researchers from Tufts University has developed a 3D-printed pill that can sample bacteria in the gut without causing harm. The pill provides accurate identification of bacterial populations and their relative abundance, enabling better understanding of the role of different intestinal bacterial species in health and disease.
A study published in Frontiers in Immunology found that rural Amish babies had a more diverse and beneficial gut microbiome than urban babies, which led to a more robust development of the respiratory immune system. The researchers used fecal transplants from Amish babies to colonize the guts of newborn pigs, showing a connection betwe...
Researchers found a link between healthy gut flora and reduced infection risk after knee and hip replacement surgeries. The study suggests that mice with unhealthy microbiomes may have compromised immune systems, paving the way for potential microbiome-based therapies to prevent infections.
A high-quality diet is associated with a higher abundance of beneficial bacteria in the colon, while a poor-quality diet is linked to more potentially harmful bacteria. The researchers propose that modifying the microbiome through diet may be a strategy to reduce chronic disease risk.
Research reveals preterm infants with growth failure have altered gut bacteria and delayed metabolic development, which may be treated through individualized interventions. The study's findings offer new insights into predicting and preventing growth failure in premature infants.
Researchers at Universitat Pompeu Fabra and S-Biomedic demonstrated the use of living bacteria to temporarily modulate skin microbiome composition. The study, published in Microbiome, found that probiotic solutions from donor microbiomes can be applied to recipients, leading to a shift towards a healthier microbiome state.
A mathematical framework describes the ecology of a microbiome-host interaction landscape, allowing for global comparisons and understanding of diverse microbiomes' associations with similar health outcomes. The framework applies equally well to traditional genetic interactions.
A study led by Georgia State University researchers found that fecal miRNA can serve as a tool to assess gut microbiota healthiness and provide early clues to intestinal inflammation in mice. The findings offer new hope for diagnosing chronic gut conditions, such as inflammatory bowel disease.
Researchers found Veillonella bacteria in elite athletes' microbiomes, which converts lactic acid into propionate to improve exercise capacity. Supplementing with Veillonella may boost sedentary individuals' exercise abilities and protect against chronic diseases.
Researchers have discovered that plants can transmit antibiotic-resistant superbugs to humans, highlighting the importance of tackling foodborne resistance from all aspects of the food chain. The study found that certain antibiotics can increase the ability of bacteria to colonize the gut after ingestion, while others can prevent it.
Researchers identified Roseburia intestinalis as a gut bacterium triggering antiphospholipid antibodies in patients with antiphospholipid syndrome. The study suggests that eliminating this bacterium may help decrease antibody levels and open doors for future treatment options.
A recent study published in Nature Medicine Letters reveals that specific microbiome organisms are linked to the early stages of colorectal cancer development. The researchers found increases in these microorganisms in fecal samples from patients, which could potentially provide vital diagnostic clues.
A new study reveals that bacteriophages can have a profound impact on the dynamics of the gut microbiome, causing a cascade of effects on other species and modulating metabolite levels. This finding has significant implications for therapeutic use and understanding the potential effects of other treatments.
A new study by immunologists at the Babraham Institute has shown that fecal transplants from young mice can replenish and boost the gut microbiome of older mice, rejuvenating their immune system. The research suggests that targeting the gut microbiome could be a way to treat age-related symptoms and facilitate healthy aging.
Researchers have made an important advance in understanding the role of gut bacteria in human health, including diagnostic methods and therapies. The study found that patients with certain diseases had a smaller number of protein families in their microbiome compared to healthy individuals.
A study using mouse models reveals that gut bacteria directly contribute to autism-like behaviors, affecting gene expression and metabolite production. Researchers hope this discovery may lead to new treatments targeting the gut, rather than the brain.
A new study from Harvard T.H. Chan School of Public Health and the Broad Institute of MIT and Harvard found that changes in the gut microbiome during IBD trigger an unhealthy inflammatory reaction. The research, part of the Human Microbiome Project, identified specific chemicals and microbial shifts that contribute to disease activity.
A recent study found that women's gut microbiomes are more diverse and mature earlier than men's, with a positive association between age and bacterial diversity. The research suggests that sex hormones may play a role in the development of the female gut microbiome.
Researchers have developed an 'anaerobic Intestine Chip' that stably maintains a complex human microbiome and provides a protective physiological barrier. This breakthrough technology allows for direct investigations of health and disease-related human-microbiome interactions under low oxygen conditions.
A new University of Connecticut study found that human activity influences the gut microbiota and body mass of Darwin's finches in the Galapagos. Researchers studied over 100 female finches and discovered that those living near humans had different gut bacteria communities, leading to changes in their physical characteristics.
A new study found no major differences in gut microbiomes of people infected with roundworms or hookworms and uninfected peers. However, curing hookworm infections resulted in specific changes to the microbiome, while deworming had minimal effects.
Researchers analyzed B. fragilis' evolution in humans, finding 16 genes evolve within individuals, targeting pathways for fiber uptake and immune system interactions. The study also revealed differences in mutations between Western and Eastern cultures, with potential implications for probiotic choices and microbial therapies.
Research from the NASA Twins Study found that extended spaceflight alters the ratio of two major categories of bacteria in the gut microbiome, but not its diversity. The study's findings could help protect astronauts' and space tourists' microbiomes during long bouts of space travel.
A study by CU Anschutz researchers found that men who have sex with men have unique gut microbiomes that drive immune activation and may increase their risk of HIV infection. The study suggests a direct link between microbiome composition and immune activation in HIV-negative and HIV-positive MSM.
A study found that gut microbes from high HIV-risk men who have sex with men drive immune activation in mice and HIV infection in cells. The researchers suggest that the gut microbiome might be a risk factor for HIV transmission in these individuals.
Scientists have developed edible antibodies that can survive digestion and reach the gut, offering an alternative to traditional treatments. The technology has potential applications in fighting gut infections, treating inflammatory disorders, and preventing diarrhea in pigs and humans.
Researchers mapped gut microbes of colorectal cancer patients to identify disease-specific changes globally robust despite environmental differences. The study establishes a panel of gut microbes associated with colorectal cancer and shows potential for non-invasive cancer screening.
A Columbia University study found that adversity-induced disruptions in gut microbes are associated with changes in brain function in young children. The research linked gastrointestinal symptoms in childhood to potential emotional health issues later in life.
Researchers have identified over 7,000 structural variants in human gut microbiomes associated with disease risk and weight. These variants were found to be linked to a specific ability of bacteria to produce butyrate, a substance with anti-inflammatory effects.
Researchers develop nanovaccine using pyridine functionalized poly(2-hydroxyethyl methacrylate) material, overcoming restricted immune response in mice with gut-initiated metabolic syndrome. The study explores the interrelationship between nanomaterials, immune responses and the microbiome.
The symposia series will focus on the gut microbiome's impact on health and disease, featuring speakers on topics such as gut-brain axes and antibiotic effects. Research highlights include studies on acetate, bioinformatics, and metabolomics.
A study in mice suggests that altering the gut microbiome via prebiotics or probiotics may be a potential treatment for PCOS. The research found improvements in testosterone levels, ovulation, weight, and insulin resistance in mice with PCOS, linked to changes in gut bacteria composition.
Researchers have identified new pathways controlling inflammation in the gut and explored diet-based interventions to prevent C. difficile infections. Prebiotics may also help mitigate gastrointestinal toxicity from radiation treatment.
A multi-disciplinary team of researchers at Harvard's Wyss Institute for Biologically Inspired Engineering discovered four human microbiome metabolites that enhance colon injury by enterohemorrhagic E. coli (EHEC) in a human-mouse comparative study using Organ-on-a-Chip technology.
A study of 150 volunteers found that consuming yogurt with probiotics increased the proportion of beneficial bifidobacteria, which can help metabolize lactose and produce vitamins. This shift in gut microbiota had a positive impact on the body's ability to resist inflammatory diseases and hormonal disorders.
Researchers from Virginia Tech and Eastern Washington University are collaborating on a $958,415 NSF grant to study the critical role of the honey bee gut microbiome in health and defense against parasites. The team aims to develop a network of genes from the parasite, microbiome, and host to determine their interactions with each other.
Researchers reconstruct nearly 61,000 microbial genomes from human gut metagenomes, uncovering 2,058 previously unknown species and shedding light on the metabolic capabilities of uncultivated microbes. The study improves genomic resources for global populations, especially in regions with limited data.
A new study reveals that Blastocystis subtype 7 selectively kills beneficial Bifidobacterium and Lactobacillus in the gut, leading to oxidative stress and lesions. This pathogenic microbe can contribute to inflammatory bowel disease, irritable bowel syndrome, and gastrointestinal cancers.
Research reveals that gut microbiota is essential for thermoregulation, particularly in animals exposed to cold. The study found that gut microbiota helps stimulate the activation of Brown Adipose Tissue and promotes white adipose tissue browning, leading to improved thermogenic capacity.