Health & Medicine

Research at Purdue University suggests synthetic carbon molecules called fullerenes, or buckyballs, have a high potential of being accumulated in animal tissue, but the molecules also appear to break down in sunlight, perhaps reducing their possible environmental dangers.

Biotechnology
BiotechnologySeptember 18, 2008 09:57 PM

Following independent paths of investigation, two research teams are announcing this month that they have successfully converted sugar-potentially derived from agricultural waste and non-food plants-into gasoline, diesel, jet fuel and a range of other valuable chemicals.

Microbiology

Skin infections are common in pet lizards and can lead to fatal organ disease and septicaemia. Infections are particularly risky in lizards that are bred in captivity for release into the wild, as they can spread into the wild population. The cause of these diseases has been unclear but now researchers in Belgium have discovered a new bacterium responsible for dermatitis in desert lizards. According to research published in the September issue of the International Journal of Systematic and Evolutionary Microbiology, the discovery could help control the disease and protect endangered species.

Health & Medicine

Researchers in Rochester, N.Y., and Colorado have shown that manipulating stem cells prior to transplantation may hold the key to overcoming a critical obstacle to using stem cell technology to repair spinal cord injuries.

Health & Medicine

There may be no such thing as a 'safe' tan based on ultraviolet (UV) radiation, according to a series of papers published in the October issue of Pigment Cell & Melanoma Research, the official journal of The International Federation of Pigment Cell Societies (IFPCS) and the Society for Melanoma Research.

Molecular & Cell Biology

Biologists at the University of Rochester have found that small-bodied rodents with long lifespans have evolved a previously unknown anti-cancer mechanism that appears to be different from any anticancer mechanisms employed by humans or other large mammals. The findings are published in today's issue of Aging Cell.

Biology

Plants in a forest respond to stress by producing significant amounts of a chemical form of aspirin, scientists have discovered. The finding, by scientists at the National Center for Atmospheric Research (NCAR), opens up new avenues of research into the behavior of plants and their impacts on air quality, and it also has the potential to give farmers an early warning signal about crops that are failing.

Health & Medicine

It has long been thought that virus infections can cause cardiac arrhythmia. But why has not been understood. Ulrike Lisewski, Dr. Yu Shi, Michael Radke and Professor Michael Gotthardt of the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch, Germany, have now discovered the molecular mechanism. The researchers demonstrated that the receptor which the virus uses to infect heart cells is normally necessary for regular heart beat in mice. Likewise, when the receptor is absent or non-functioning, arrhythmia occurs. They assume that both the virus infection and the autoimmune disease can block the receptor which, in turn, disrupts the heart's normal rhythm. The study has now been published online in the Journal of Experimental Medicine (10.1084/jem.20510iti3).

Biology

A groundbreaking new study into the mating and nesting practices of a common Australian frog has found they partner up to eight males sequentially – the highest recorded of any vertebrate.

Molecular & Cell Biology

For years, researchers have known that high blood pressure causes blood vessels to contract and low blood pressure causes blood vessels to relax. Until recently, however, researchers did not have the tools to determine the exact proteins responsible for this phenomenon. Now, using atomic force microscopy - a microscope with very high resolution - and isolating blood vessels outside the body, University of Missouri researchers have identified a protein that plays an important role in the control of tissue blood flow and vascular resistance. This new knowledge brings researchers one step closer to understanding vascular diseases, such as high blood pressure, diabetes and other vascular problems.




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