Researchers at Wuhan University in China have found a previously unknown mechanism linking gut bacteria, estradiol, and depression in women. The study, "Gut-microbiome-expressed 3b-hydroxysteroid dehydrogenase degrades estradiol ...
It's a jungle in there. In the tightly woven ecosystem of the human gut, trillions of bacteria compete with each other on a daily basis while they sense and react to signals from the immune system, ingested food, and other ...
Mar 17, 2014
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(Medical Xpress)—A research team, led by Jeremy Barr, a biology post-doctoral fellow, unveils a new immune system that protects humans and animals from infection.
May 20, 2013
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Health care providers and patients have traditionally thought that infections patients get while in the hospital are caused by superbugs they're exposed to while they're in a medical facility. Genetic data from the bacteria ...
Apr 11, 2024
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Gut bacteria and a diet rich in the amino acid tryptophan can play a protective role against pathogenic E. coli, which can cause severe stomach upset, cramps, fever, intestinal bleeding and renal failure, according to a study ...
Mar 13, 2024
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A team of international scientists has developed a more effective treatment for chronic wounds that does not involve antibiotics or silver-based dressings, but an ionized gas called plasma.
Feb 19, 2024
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A team of medical researchers with affiliations to British multinational pharmaceutical and biotechnology company GlaxoSmithKline (GSK) has found that a new antibiotic drug the company developed to treat urinary tract infections ...
After a nearly three-fold drop in prescriptions for the antibiotic ciprofloxacin between 2015 and 2021, the rates of ciprofloxacin-resistant E. coli bacteria circulating in the community did not decline.
Aug 29, 2023
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A scientific journey decades in the making at Duke University has found a new antibiotic strategy to defeat gram-negative bacteria like Salmonella, Pseudomonas and E. coli, the culprits in many urinary tract infections (UTIs). ...
Aug 9, 2023
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A new paper sets out key research done by scientists at the University of Liverpool with partners to show that disease may be more likely to jump from animals to humans in parts of a city hosting high densities of people, ...
Jul 17, 2023
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Escherichia coli (commonly E. coli; pronounced /ˌɛʃɪˈrɪkiə ˈkoʊlaɪ/, /iː ~/, and named for its discoverer), is a Gram negative bacterium that is commonly found in the lower intestine of warm-blooded organisms (endotherms). Most E. coli strains are harmless, but some, such as serotype O157:H7, can cause serious food poisoning in humans, and are occasionally responsible for costly product recalls. The harmless strains are part of the normal flora of the gut, and can benefit their hosts by producing vitamin K2, or by preventing the establishment of pathogenic bacteria within the intestine.
E. coli are not always confined to the intestine, and their ability to survive for brief periods outside the body makes them an ideal indicator organism to test environmental samples for fecal contamination. The bacteria can also be grown easily and its genetics are comparatively simple and easily-manipulated or duplicated through a process of metagenics, making it one of the best-studied prokaryotic model organisms, and an important species in biotechnology and microbiology.
E. coli was discovered by German pediatrician and bacteriologist Theodor Escherich in 1885, and is now classified as part of the Enterobacteriaceae family of gamma-proteobacteria.
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