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Theory shows mechanism behind delayed development of antibiotic resistance
Inhibiting the "drug efflux pumps" in bacteria, which function as their defence mechanisms against antibiotics, can mask the effect of mutations that have led to resistance in the form of low-affinity drug binding to target molecules in the cell.   view more (2009-05-06)

Tufted bacteria cause infection in premature babies
Bacteria that normally reside on the skin of healthy people can cause serious infections in premature babies. A group of researchers at Karolinska Institutet have now found an explanation for why a certain kind of staphylococcus can attach itself to the skin and quickly develop dynamic ecosystems: the bacteria are like tufted, self-adhesive... view more... (2009-04-29)

'Autoantibodies' may be created in response to bacterial DNA
Autoimmune diseases have long been regarded as illnesses in which the immune system creates autoantibodies to attack the body itself.   view more (2009-04-28)

New study overturns orthodoxy on how macrophages kill bacteria
For decades, microbiologists assumed that macrophages, immune cells that can engulf and poison bacteria and other pathogens, killed microbes by damaging their DNA. A new study from the University of Illinois disproves that.   view more (2009-04-28)

German researchers make significant strides in identifying cause of bacterial infections
Several bacterial pathogens use toxins to manipulate human host cells, ultimately disturbing cellular signal transduction. Until now, however, scientists have been able to track down only a few of the proteins that interact with bacterial toxins in infected human cells.   view more (2009-04-23)

Scientists discover new chemical reaction for DNA production in bacteria and viruses
A team of researchers has discovered a new chemical reaction for producing one of the four nucleotides, or building blocks, needed to build DNA.   view more (2009-04-17)

Separating the good from the bad
Scientists at MIT and Brown University studying how marine bacteria move recently discovered that a sharp variation in water current segregates right-handed bacteria from their left-handed brethren, impelling the microbes in opposite directions.   view more (2009-04-16)

'Natural' nitrogen-fixing bacteria protect soybeans from aphids
An invasion of soybean aphids poses a problem for soybean farmers requiring application of pesticides, but a team of Penn State entomologists thinks a careful choice of nitrogen-fixing bacteria may provide protection against the sucking insects.   view more (2009-04-15)

OHSU School of Dentistry finds some orthodontic appliances are more prone to bacteria
Researchers at the Oregon Health & Science University School of Dentistry (www.ohsu.edu/sod) have found the majority of patients with self-ligating orthodontic brackets retain fewer bacteria in plaque than patients with elastomeric orthodontic brackets.   view more (2009-04-15)

New insight into an old reaction: Adenylylation regulates cell signaling
A new study reveals the importance of adenylylation in the regulation of cell signaling from bacteria to higher organisms.   view more (2009-04-10)

Study finds multidrug-resistant gram-negative bacteria high in long-term care
The prevalence of a certain form of drug-resistant bacteria, called multidrug-resistant gram-negative (MDRGN) organisms, far surpassed that of two other common antimicrobial-resistant infections in long-term care facilities, according to a study conducted by researchers at Hebrew SeniorLife's Institute for Aging Research.    view more (2009-04-10)

A new link between nickel, methane gas and the evolution of complex life forms on Earth
A University of Alberta researcher is lead author on a paper that reaches back billions of years to establish a new link between nickel, methane gas and the evolution of complex life forms on Earth.   view more (2009-04-09)

Research could lead to new non-antibiotic drugs to counter hospital infections
Lack of an adequate amount of the mineral phosphate can turn a common bacterium into a killer, according to research to be published in the April 14, 2009, issue of the Proceedings of the National Academies of Science.   view more (2009-04-09)

Vitamin D may exacerbate autoimmune disease
Deficiency in vitamin D has been widely regarded as contributing to autoimmune disease, but a review appearing in Autoimmunity Reviews explains that low levels of vitamin D in patients with autoimmune disease may be a result rather than a cause of disease and that supplementing with vitamin D may actually exacerbate autoimmune disease.   view more (2009-04-09)

Cigarette smoke may alter immune response in COPD exacerbations
Smoking cigarettes is not only the principle cause of chronic obstructive pulmonary disease (COPD), but it may change the body's immune responses to bacteria that commonly cause exacerbations of the disease, according to new research in a mouse model.   view more (2009-04-07)

Orientation of antenna protein in photosynthetic bacteria described
Researchers at Washington University in St. Louis have figured out the orientation of a protein in the antenna complex to its neighboring membrane in a photosynthetic bacterium, a key find in the process of energy transfer in photosynthesis.   view more (2009-04-03)

Can periodontal disease act as a risk factor for HIV-1?
Today, during the 87th General Session of the International Association for Dental Research, convening at the Miami Beach Convention Center, a group of scientists from Nihon University (Tokyo, Japan) will present findings suggesting that periodontal disease could act as a risk factor for reactivating latent HIV-1 in affected individuals.    view more (2009-04-03)

Researchers examine bacterial rice diseases, search for genetic solutions
As a major food source for much of the world, rice is one of the most important plants on earth.   view more (2009-04-02)

The More Oral Bacteria, the Higher the Risk of Heart Attack, UB study shows.
Several studies have suggested there is a connection between organisms that cause gum disease, known scientifically as periodontal disease, and the development of heart disease, but few studies have tested this theory.   view more (2009-04-01)

Corrosion-inhibiting coatings containing 'good' bacteria
A new, environmentally friendly coating that protects metals against corrosion in seawater has been developed by a team of researchers from Sheffield Hallam University.   view more (2009-03-30)
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