A new study compares the two most common surgical therapies for obesity, known as Roux-en-Y gastric bypass (RYGB), and laparoscopic adjustable gastric banding (LAGB). The results demonstrate that RYGB -- the more aggressive of the two surgeries -- produces profound changes in the composition of microbial communities in the gut, with the resulting gut flora distinct from both obese and normal weight patients, due to the dramatic reorganization of the gut caused by RYGB surgery, which increases microbial diversity.
NASA's Twins Study investigators met in Houston this week to discuss findings from the final data collections.
Researchers have figured out how a once-defeated bacterium has re-emerged to infect cotton in a battle that could sour much of the Texas and US crop. And it boils down to this: A smart bacteria with a sweet tooth.
A 12-month study mapping bacterial diversity within a hospital -- with a focus on the flow of microbes between patients, staff and surfaces -- should help hospitals worldwide better understand how to encourage beneficial microbial interactions and decrease potentially harmful contact.
Viruses are thought to frequently kill their host bacteria, especially at high microbial density. A state called lysogeny, in which viruses lie dormant but don't kill their hosts, has been thought to be relatively rare , mostly occurring at low bacterial concentrations. A new study suggests lysogeny might be much more common than previously believed. These findings could lead to a better understanding of degraded coral reef ecosystems and how to preserve them.
Laser-induced graphene made from an inexpensive polymer is an effective anti-fouling material and, when charged, an excellent antibacterial surface.
Certain fatty acids are not just part of a healthy diet. They can also neutralize the harmful listeria bacterium, a new study shows. This discovery could eventually lead to improved methods to combat dangerous and drug-resistant bacteria.
By some estimates, more than 1 million people contract infections from medical devices in US hospitals each year, many of which are due to biofilms. A new study suggests a possible new way to prevent such biofilms from forming, which would sharply reduce incidents of related hospital-borne infection.
Siberian biophysicists have conducted a research concerning a biological effect of low-dose gamma radiation. The results have been published in the Journal of Environmental Radioactivity, one of the leading scientific journals in the world among those dedicated to the issues of environmental radioactivity.
Biophysicists have proposed a universal mechanism for the 'sense of smell' in bacteria. This was done by obtaining the structure of the NarQ protein from Escherichia coli (E. coli). The paper published in Science will help us understand how bacteria 'communicate' with one another and form biofilms on sterile surfaces or inside the human body. Drugs which affect bacteria's 'sense of smell' could potentially be used as substitutes for modern antibiotics.