Bacteria News and Research

RSS

'Fight' between bacteria in the intestines linked to chronic disease

Results from a study conducted at Georgia State University suggest that a "fight" between bacteria normally living in the intestines and the immune system, kicked off by another type of bacteria, may be linked to two types of chronic disease.

3 Aug 2012

Study investigates standard practices for insertion and management of urinary catheters

A major international study led by University of Adelaide researchers aims to prevent death and serious illness caused by one of the most common infections contracted by patients in hospitals.

3 Aug 2012

Composition of microbes in the gut changes dramatically during pregnancy

The composition of microbes in the gut changes dramatically during pregnancy, according to a study published by Cell Press in the August 3rd issue of the journal Cell. Although these changes are associated with metabolic disease under most circumstances, they could be beneficial in pregnant women.

3 Aug 2012

New method could increase number of genetic components in synthetic biologists' toolkit

Through the assembly of genetic components into "circuits" that perform logical operations in living cells, synthetic biologists aim to artificially empower cells to solve critical problems in medicine, energy and the environment. To succeed, however, they'll need far more reliable genetic components than the small number of "off-the-shelf" bacterial parts now available.

3 Aug 2012

Researchers report one-third cut in the rate of lethal SSIs after colorectal operations

A patient safety team including researchers in the Johns Hopkins Armstrong Institute for Patient Safety and Quality reported a one-third cut in the rate of costly and potentially lethal surgical site infections (SSIs) following colorectal operations after requiring use of a simple safety checklist and urging caregivers to speak up if they see potentially unsafe practices.

2 Aug 2012

SPECT/CT with 99mTc-HMPAO-WBC can improve diagnosis of infectious endocarditis

When combined with standard diagnostic tests, functional imaging procedures have been shown to reduce the rate of misdiagnosed cases of infectious endocarditis. According to new research published in the August issue of The Journal of Nuclear Medicine, single photon emission computed tomography (SPECT)/computed tomography (CT) with 99mTc-hexamethylpropleneamine oxime-labeled white blood cells (99mTc-HMPAO-WBC) can improve the diagnosis of infectious endocarditis in hard-to-diagnose cases.

2 Aug 2012

Scientists decode stability blueprint of rhomboid enzyme

Johns Hopkins scientists have decoded for the first time the "stability blueprint" of an enzyme that resides in a cell's membrane, mapping which parts of the enzyme are important for its shape and function.

1 Aug 2012

Intraluminal protection device outperforms two negative-pressure IV connectors in MECH research

An IV connector known as an intraluminal protection device (IPD) significantly outperformed two widely used negative-pressure IV connectors in research performed at Methodist Extended Care Hospital (MECH).

1 Aug 2012

Mapping rhomboid enzymes could eventually lead to drugs to treat malaria

31 Jul 2012

Slippery technology prevents harmful bacterial slime from forming on surfaces

Biofilms may no longer have any solid ground upon which to stand. A team of Harvard scientists has developed a slick way to prevent the troublesome bacterial communities from ever forming on a surface. Biofilms stick to just about everything, from copper pipes to steel ship hulls to glass catheters. The slimy coatings are more than just a nuisance, resulting in decreased energy efficiency, contamination of water and food supplies, and-especially in medical settings-persistent infections. Even cavities in teeth are the unwelcome result of bacterial colonies.

31 Jul 2012

KSU researcher completes study that examines dietary fiber in children

Experts have long since determined the recommended daily amounts of certain nutrients, such as calcium and vitamin D, but the numbers for nutrients like fiber have proven more difficult to nail down.

31 Jul 2012

Scientists identify new gene responsible for genetic form of blindness in newborns

One of the mysteries of blindness has been solved. A team of international scientists in collaboration with the Research Institute of the McGill University Health Centre (RI MUHC) identified a new gene responsible for Leber Congenital Amaurosis (LCA), a devastating genetic form of blindness in newborns.

30 Jul 2012

Researchers describe new human tissue dendritic cell with cross-presenting function

Researchers in Newcastle and Singapore have identified a new type of white blood cell which activates a killing immune response to an external source - providing a new potential target for vaccines for conditions such as cancer or Hepatitis B.

30 Jul 2012

Researchers decode deadly 2011 E. coli outbreak in Germany

The secret to the deadly 2011 E. coli outbreak in Germany has been decoded, thanks to research conducted at Michigan State University.

27 Jul 2012

Skin microbiota may help protect the body from infection

A research team at the National Institutes of Health has found that bacteria that normally live in the skin may help protect the body from infection. As the largest organ of the body, the skin represents a major site of interaction with microbes in the environment.

27 Jul 2012

Molecular explanation for increased susceptibility to intestinal inflammation in malnutrition

More than one billion people in poor countries are starving, and malnutrition remains a major problem even in rich countries, making it a leading cause of death in the world. For over a hundred years, doctors have known that a lack of protein in the diet or low levels of amino acids, the building blocks of proteins, can lead to symptoms like diarrhoea, inflamed intestines and other immune system disorders, which weaken the body and can be fatal. However, the molecular mechanism which explains how malnutrition causes such severe symptoms has been largely unexplored.

26 Jul 2012

Tips to prevent illness in crowds

Massive crowds from around the globe will mingle in London during the Olympics, and that means a world-class array of germs will mix with them. Mayo Clinic infectious diseases expert Gregory Poland, M.D., offers several tips for avoiding illness when you are around lots of people, whether at the Olympics, a professional football game, convention, arena concert or other major event.

26 Jul 2012

How an opportunistic fungal pathogen knows when to attack

The opportunistic fungal pathogen Candida albicans inconspicuously lives in our bodies until it senses that we are weak, when it quickly adapts to go on the offensive. The fungus, known for causing yeast and other minor infections, also causes a sometimes-fatal infection known as candidemia in immunocompromised patients. An in vivo study, published in mBio, demonstrates how C. albicans can distinguish between a healthy and an unhealthy host and alter its physiology to attack.

25 Jul 2012

New combination therapy for TB shows promise in Phase II study

"Results from a groundbreaking trial of three drugs given in combination -- one of them completely new and one not yet licensed for this use -- killed more than 99 percent of patients' [tuberculosis (TB)] bacteria after two weeks of treatment," and the combination "appears to be equally effective on drug-resistant TB," the Guardian reports.

25 Jul 2012

Giving patients a new immune system can cure Crohn's disease

Researchers at Fred Hutchinson Cancer Research Center have opened a clinical trial to test the theory that giving a patient a new immune system can cure severe cases of Crohn's disease, a chronic inflammatory condition of the gastrointestinal tract.

25 Jul 2012