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#bacterium — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #bacterium, aggregated by home.social.

  1. 'Strong muscles start in the gut'

    "Aging naturally weakens our muscles, but researchers at Leiden University Medical Center and the Universities of Granada and Almería have found a gut bacterium that may help turn the tide. Their findings, now published in the scientific journal Gut, show that Roseburia inulinivorans is linked to stronger muscles in both people and mice."

    "Older adults who carried this bacterium had 29 percent stronger handgrip strength than those who didn’t.” In young adults, higher levels of Roseburia inulinivorans were associated with stronger muscles and better overall fitness."

    "After clearing the mice’s gut bacteria using antibiotics, they introduced human strains of Roseburia inulinivorans for eight weeks. […] The mice became 30 percent stronger, developed larger muscle fibers and produced more fast‑twitch fibers, the kind needed for quick, powerful movements."

    "The team also found that the bacterium changed how the muscles used certain building blocks and activated energy‑related pathways inside the muscle. “These metabolic changes may help explain why the muscles grew stronger"

    "Another key observation is that levels of Roseburia inulinivorans naturally decline with age. “This could partly explain why muscle strength drops as we get older"

    lumc.nl/en/news/2026/strong-mu

    #health #muscle #strength #fitness #RoseburiaInulinivorans #gut #bacterium

  2. "I’m surprised to see people get so wildly excited about a possible #bacterium 🦠 on #Mars 🔴 when our own planet is crawling with undiscovered species"

    George Schaller, #mammalogist, #biologist, #conservationist and #author en.wikiquote.org/wiki/Mars

  3. The common gut #bacterium Bacteroides fragilis is significantly more likely to be infected with specific viruses, known as bacteriophages, in patients diagnosed with #colorectal #cancer
    #Oncology #Microbiology #Gastroenterology #sflorg
    sflorg.com/2026/02/ingy0219260

  4. More than a billion tons of #chitin are produced on Earth each year. This study shows that the soil #bacterium #Streptomyces venezuelae thrives on chitin from #insect #exoskeletons, using a potent mix of chitinases and a dedicated chitobiose importer @PLOSBiology plos.io/45sg4S5

  5. People with weakened #immune systems are at constant risk of infection. #Pseudomonas #aeruginosa, a common #environmental #bacterium, can colonize different body parts, such as the #lungs, leading to persistent, chronic infections that can last a lifetime – a common occurrence in people with #cystic #fibrosis.
    #Biology #Medical #sflorg
    sflorg.com/2023/06/bio06142302

  6. A network of small RNAs regulates sporulation initiation in #Clostridioides difficile

    Franziska Faber and colleagues use small RNA/target interaction mapping in the enteric pathogen C. difficile to reveal the first RNA #chaperone #Hfq-dependent RNA interactome in a gram-positive #bacterium

    embopress.org/doi/10.15252/emb