When antibiotics are used to treat bacteria susceptible to them, the treatment usually works. Nevertheless, the antibiotic chosen is sometimes ineffective. One of the reasons for this is heteroresistance, a phenomenon explored in depth by Uppsala and Emory University researchers in a new study. When a bacterial infection is suspected, samples are taken for analysis […]Continue Reading ...
A Rutgers-led team has discovered two genes that make some strains of harmful Staphyloccocus bacteria resistant to treatment by copper, a potent and frequently used antibacterial agent. The discovery shows that Staphyloccocus aureus can acquire additional genes that promote infections and antibacterial resistance and may open new paths for the development of antibacterial drugs, according […]Continue Reading ...
Researchers from the Department of Biomedical Research of the University of Bern and the University Clinic of Visceral Surgery and Medicine of the Inselspital Bern, Switzerland, have discovered that changes in the composition of the intestinal bacteria in patients with chronic inflammatory bowel disease affect the severity of the disease and the success of therapy. […]Continue Reading ...
Two new species of bacteria have been found in the blood of patients in China. The bacteria were found in the blood of two human patients during blood tests as part of routine medical care. The new bacteria, both of which are in the Enterobacter genus, were found to be resistant to multiple antibiotics. Enterobacter […]Continue Reading ...
Study identifies key step in spread of drug resistance, opportunity for intervention Spotless surfaces in hospitals can hide bacteria that rarely cause problems for healthy people but pose a serious threat to people with weakened immune systems. Acinetobacter baumannii causes life-threatening lung and bloodstream infections in hospitalized people. Such infections are among the most difficult […]Continue Reading ...
Under threat of being scrubbed away with disinfectant, individual bacteria can improve their odds of survival by joining together to form colonies, called biofilms. What Arnold Mathijssen, PhD, wanted to understand was how stationary biofilms find food once they’ve devoured nearby nutrients. Leading an international team of researchers in creating simulations of how fluids move, Mathijssen, […]Continue Reading ...
Credit: CC0 Public Domain We like to think of ourselves as individuals. But scientists estimate that we share our bodies with 38 trillion organisms that play an integral part in keeping us healthy and making us who we are. They crawl across our skin, cling to our intestines, and generally call our bodies home. Now, […]Continue Reading ...
A team of researchers led by Osaka University examined the dissemination of colistin-resistant bacteria among residents of rural communities in Vietnam to find that the prevalence of colistin-resistant Escherichia coli (CR-E) in the intestines was extremely high, at about 70 percent. This Escherichia coli (E. coli) is a non-pathogenic bacterium, so the residents have no […]Continue Reading ...
Commensal bacteria (red) reside amongst the mucus (green) and epithelial cells (blue) of a mouse small intestine. Credit: University of Chicago New research shows that healthy infants have intestinal bacteria that prevent the development of food allergies. Researchers from the University of Chicago, Argonne National Laboratory and the University of Naples Federico II in Italy […]Continue Reading ...
Scientists at the University of Liverpool have taken another step forward in understanding the bacteria that are causing a devastating Salmonella epidemic currently killing around 400,000 people each year in sub-Saharan Africa. Published in the journal PLOS Biology and representing five years of work, researchers at the Institute of Integrative Biology have completed one of […]Continue Reading ...
TUESDAY, Jan. 8, 2019 — Despite the terrifying plot lines of many a sci-fi film, there’s no need to worry that germs in space might transform into ferocious, malevolent microbes that threaten the human race. Quite the opposite, new research reveals. The harsh conditions of galactic travel don’t trigger genetic changes in bacteria that make […]Continue Reading ...
New research has revealed that microbes stranded in the International Space Station (ISS) have different genes from the equivalent bacteria on Earth. Whilst there have been many concerns about these microbes forming a new generation of “superbugs”, it now appears that the differences are making the bacteria more able to withstand the harsh conditions of […]Continue Reading ...
THURSDAY, Jan. 3, 2019 — An old acne drug may hold the key to developing a new, safer treatment, a study suggests. Isotretinoin (Myorisan, formerly branded as Accutane), is a form of vitamin A, and has been prescribed for acne for decades. It works by reducing oil in the skin, thus helping prevent acne. An […]Continue Reading ...
Researchers at Osaka University have discovered that polymyxin E-resistant Escherichia coli is widely prevalent among people living in rural Vietnam. Kateryna Kon | Shutterstock Polymyxin E is an antibiotic that is used to prevent the growth of Gram-negative bacteria such as E.coli and Pseudomonas aeruginosa. It is one of only a few remaining drugs that […]Continue Reading ...
Scientist have long known that bacteria in the intestines, also known as the microbiome, perform a variety of useful functions for their hosts, such as breaking down dietary fiber in the digestive process and making vitamins K and B7. Yet a new study unveils another useful role the microbiome plays. A team of researchers from […]Continue Reading ...
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