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  • Genetic Background of Mice Influences Microbiome


    The microbiome continues to be an important topic in both human health research and in popular culture. The microbiome is cited as a factor in multiple diseases, neurological conditions, and immune responses to foreign pathogens. Specific compositions of gut commensal bacteria have been associated with an increased incidence of depression, varying responses to immunotherapies, and […]

  • Does the Microbiome Affect Immunotherapy Outcomes?


    The microbiome consists of about 100 trillion microbes (microbiota) and their genomes. These are made of bacteriophage, fungi, bacteria, protozoa (single-cell eukaryotes), and viruses in the human body. They play an important role in health maintenance systems of the immune system, as well as in drugs and foreign substances (xenobiotics) metabolism. Researchers have discovered that […]

  • Weight Gain Could Be Linked To Gut Bacteria


    UT Southwestern researchers have found a key driver of the crosstalk that helps synchronize the absorption of nutrients in the gut with the rhythms of the Earth’s day-night light cycle. Their findings could have far-ranging implications for obesity in affluent countries and malnutrition in impoverished countries. In the study, Dr. Lora Hooper and her research […]

  • A mouse’s metabolism may follow circadian rhythms set by gut bacteria


    Mice (and maybe people) may metabolize food according to daily, circadian rhythms set by gut bacteria. Microbes in the small intestine of mice rhythmically dictate when fat is taken up by cells that line the organ, researchers report. The study, described in the Sept. 27 Science, details how gut microbes influence a host’s metabolism. If […]

  • Microbe Helps Hosts Exercise Longer


    A recent study published in Nature Medicine reports on the correlation between rigorous exercise and the increase in abundance of a specific bacterial genus in the human gut microbiome. The collaborative group, which includes CRISPR-researcher George Church from Harvard Medical School, established a connection between the abundance of Veillonella atypica and an increased ability to […]

  • On-Demand Webinar: Ensure Reproducible Microbiome Profiles in In Vivo Research


    Taconic Biosciences’ Marina Hanson DVM, PhD presents this exclusive webinar where she describes how TruBIOME™ enables the generation and maintenance of mice with defined custom microbiome profiles, including insight into the Wild Mouse gut microbiota. Watch today to learn: About the Wild Mouse gut microbiome and how it varies from the microbiota of standard laboratory […]

  • Microbial chemistry gains fresh focus


    The tools of chemical biology, genomics and data mining can yield insights into the metabolites of the microbiome. Studies of the microorganisms that live on and inside animals’ bodies have long relied on DNA sequencing, which can reveal which species abound and how these microbial communities respond to their environment. Now, the analytical methods of […]

  • The Next Ten Years of Microbiome Research


    The Human Microbiome Project’s former Program Coordinator, Lita Proctor, set out priorities for the next ten years of human microbiome research in a wide-ranging article for Nature. She also provides reflections on the completed Human Microbiome Project that helped jump-start microbiome research in the US and beyond. In the past ten years microbiome research has […]

  • Taconic Biosciences Participates in Second Rodent Research Reference Mission to the International Space Station


    Resulting Studies Will Provide Critical Reference Data to Drive Advancements in Human Health Rensselaer, NY — September 3, 2019 – Taconic Biosciences, a global leader in providing genetically engineered animal model solutions, announces its participation in the second Rodent Research Reference (RRR) mission to the International Space Station. Taconic has a history with NASA dating […]

  • Oral Administration of miR-30d from Feces of MS Patients Suppresses MS-like Symptoms in Mice by Expanding Akkermansia muciniphila


    Summary Fecal transfer from healthy donors is being explored as a microbiome modality. MicroRNAs (miRNAs) have been found to affect the microbiome. Multiple sclerosis (MS) patients have been shown to have an altered gut microbiome. Here, we unexpectedly found that transfer of feces harvested at peak disease from the experimental autoimmune encephalomyelitis (EAE) model of […]

  • Absorptive transport of amino acids by the rat colon


    Abstract The capacity of the colon to absorb microbially-produced amino acids (AAs) and the underlying mechanisms of AA transport are incompletely defined. We measured the profile of 16 fecal AAs along the rat ceco-colonic axis and compared unidirectional absorptive AA fluxes across mucosal tissues isolated from the rat jejunum, cecum, and proximal colon using an […]

  • Strain specific stress-modulating effects of candidate probiotics: a systematic screening in a mouse model of chronic restraint stress


    Background Changes in the gut microbiota have been implicated in mood and cognition. In rodents, supplementation with certain bacteria have been shown to alleviate adverse effects of stress on gut microbiota composition and behaviour, but little is known of how the performance of different strains compare to each other. We took a systematic approach to […]

  • Colorectal cancer-associated microbiota contributes to oncogenic epigenetic signatures


    Significance This study advances our appreciation and understanding of the role of colon dysbiosis in the pathogenesis of colorectal cancer. In a human pilot study of 266 individuals, greater epigenomic (methylation) DNA alterations correlated with CRC and microbiota composition. Beyond this correlative evidence, when germ-free mice received fresh feces from CRC patients and their healthy […]

  • The microbiota regulates murine inflammatory responses to toxin-induced CNS demyelination but has minimal impact on remyelination


    Significance People with multiple sclerosis have a microbiota distinct from healthy controls, and there is growing interest in how these differences might contribute to the onset and progression of CNS autoimmunity. However, the impact that the microbiota may also have on the endogenous regeneration of myelin—remyelination—has not yet been explored. Here we show that inflammatory […]

  • Neurogenesis and prolongevity signaling in young germ-free mice transplanted with the gut microbiota of old mice


    Hidden benefits of a fecal transplant Our gut microbiota evolves as we age, yet its effects on host physiology are not clearly understood. Kundu et al. now attempt to elucidate these effects by transplanting the gut microbiota of either young or old donor mice into young germ-free recipient mice. They report that young germ-free mice […]

  • A high-fat/high-protein, Atkins-type diet exacerbates Clostridioides (Clostridium) difficile infection in mice, whereas a high-carbohydrate diet protects


    ABSTRACT Vasoactive intestinal peptide (VIP) is crucial for gastrointestinal tract (GIT) health. VIP sustains GIT homeostasis through maintenance of the intestinal epithelial barrier and acts as a potent anti-inflammatory mediator that contributes to gut bacterial tolerance. Based on these biological functions by VIP, we hypothesized that its deficiency would alter gut microbial ecology. To this […]

  • Vasoactive intestinal peptide deficiency is associated with altered gut microbiota communities in male and female C57BL/6 mice


    Vasoactive intestinal peptide (VIP) is crucial for gastrointestinal tract (GIT) health. VIP sustains GIT homeostasis through maintenance of the intestinal epithelial barrier and acts as a potent anti-inflammatory mediator that contributes to gut bacterial tolerance. Based on these biological functions by VIP, we hypothesized that its deficiency would alter gut microbial ecology. To this end, […]

  • Intake of Watermelon or Its Byproducts Alters Glucose Metabolism, the Microbiome, and Hepatic Proinflammatory Metabolites in High-Fat–Fed Male C57BL/6 J Mice


    ABSTRACT BACKGROUND Watermelon intake has demonstrated effects on blood pressure regulation along with other health benefits. OBJECTIVE We hypothesized that intake of whole watermelon and products made from watermelon rind (WR) and watermelon skin (WS) would remediate metabolic complications in C57BL/6 J male mice fed a diet modeling a Western-style diet. METHODS Ten-week-old male C57BL/6 […]

  • Events
    We maintain a calendar of events and meetings related to the field of Microbiome Research. Check it often for new events and conferences, or submit something for the calendar here.

  • Gut microbiota from multiple sclerosis patients enables spontaneous autoimmune encephalomyelitis in mice


    Significance Studies using experimental models have indicated that multiple sclerosis (MS)-like disease can be triggered in the gut following interactions of brain autoimmune T lymphocytes with local microbiota.

  • BOOK REVIEW: GNOTOBIOTICS


    Gnotobiotics, edited by Trenton Schoeb and Kathryn Eaton, is invaluable to those developing or managing gnotobiotic facilities.

  • Stress could be just as unhealthy as junk food


    Brigham Young University: We all know that a poor diet is unhealthy, but a new BYU study finds that stress may just as harmful to our bodies as a really bad diet.

  • Infection via mosquito bite alters Zika virus replication kinetics in rhesus macaques


    Abstract For more than three decades it has been recognized that small amounts of vector saliva can significantly alter the infectivity of vector-borne pathogens and subsequent in vivo dynamics.

  • Of Mice, Dirty Mice, and Men: Using Mice To Understand Human Immunology


    Abstract Mouse models have enabled breakthroughs in our understanding of the immune system, but it has become increasingly popular to emphasize their shortcomings when translating observations to humans.

  • Microbial Genetic Composition Tunes Host Longevity


    Highlights •Systematic analysis of longevity-promoting microbial genetic variations •Colanic acid as a pro-longevity natural compound effective in different species

  • Learning more about the gut microbiota


    The GMFH editing team recommends these book selections on the topic.

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