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Tag: "general" at biology news

Genetic mutation linked to West Nile virus infection

... were more frequent among WNV patients than in the general population, suggesting that the lack of CCR5 puts people at risk for developing clinical WNV infections. In mice, the lack of CCR5 prevents protective immune cells from gaining access to the brain where they can fight off the infection. It remains ...

Variation in bitter-taste receptor gene increases risk for alcoholism

... Because taste receptors tend to vary a lot in the general population, Goate and colleagues had the opportunity to look at a large number of differences in genetic sequences and determine whether certain sequences might influence risk. In this study, they concentrated on TAS2R16, which helps regulate the res...

Face perception is modulated by sexual orientation

...indicated that the orbitofrontal cortex has a more general role in representing the reward value of faces of potential sexual partners, including same-sex mates, irrespective of reproduction. The findings suggest that the response to faces in the reward circuitry is modulated by sexual preference, and they ...

Invasive exotic plants helped by natural enemies

...the AAAS, the science society, the world's largest general scientific organization. Each year, invasive exotic species cause an estimated $120 billion in damage in the United States, not to mention the untold amount of harm they do to the structure and function of native ecosystems. In this latest study, re...

One in 14 men having a heart attack drive themselves to hospital

...ly extremely dangerous for both the driver and the general public" says lead author Sharon O'Donnell from the City's Trinity College. "People who drove themselves to the hospital said they did it because it was the quickest way to get to the hospital, they felt well enough to make the journey and they would...

Drug-resistant bacteria patterns in intensive care units changing nationally

...arized MRSA data at the national level, indicating general trends, but physicians need to know what is happening in their specific locations to help control the spread of infection. "We know that the prevalence of community MRSA varies widely in local geographic areas, so it is important that doctors be aw...

Are dancers genetically different than the rest of us? Yes, says Hebrew University researcher

...w consistent differences in two key genes from the general population. Ebstein is the head of the Hebrew University Psychology Department's Scheinfeld Center for Human Genetics in the Social Sciences. This finding is not surprising, says Ebstein, in view of other studies of musicians and athletes, which al...

ASU researchers find link between social behavior, maternal traits in bees

...e system, we can use this insight to create a more general model. Once we have a general model, we can build new hypotheses that outline how similar principles might apply to other animals....

Engineered heart tissue offers insights into irregular heartbeats, defibrillator failure

...slow down the accelerated rhythm. The results in general demonstrated the promising utility of engineered tissue in the laboratory for studying the complex electrophysiological properties of the heart in both health and disease, they said. "Implanted defibrillators can protect many patients, but sometimes...

Study may help slay 'Yellow Monster'

...er extent, but the survival rate is lower than the general population." Stearns said the lower survival rate might be more the result of limited access to care or cultural boundaries that may prevent people from seeking care. A goal of the partnership is to address these disparities by training Native stude...

A step forward in the fight against bacterial infections

... harmless. The aggressiveness of the bacteria, our general state of health, and the speed with which our immune system reacts determine whether or not we become sick after contact with a bacterium. Upon contact with a bacterium, or a bacterial component, the immune system springs into action. One such compo...

Mayo Clinic researchers discover cancer cells may move via wave stimulation

..."These findings have broad implications toward the general understanding of how specific processes in the wave may affect such things as cell growth, cell movement and metastasis," explains Mark McNiven, Ph.D., the lead researcher on the Mayo Clinic team. "Our work provides new insights into a novel mechanis...

New device could cut chemotherapy deaths

...d, if successful, the technology could be put into general use. The research team at Bath is collaborating closely with the Avon, Somerset and Wiltshire Cancer Centre and the oncology team at the Royal United Hospital for the design and development of these drug delivery vehicles. This team includes Dr Ed G...

Speeding discovery of the 'human cancer genome'

...added. Taken together, the papers demonstrate a general principle with real importance for cancer patients, Chin said. "Robust, stringent and biologically relevant systems for filtering, annotating, and prioritizing the efforts of cancer geneticists and biologists will be essential to facilitate and ac...

Widespread elephant slaughter discovered in Chad

...intact wilderness areas, abundant in wildlife. The general region was home 30 years ago to some 300,000 elephants, a number that has dwindled to perhaps 10,000 today. Encompassing nearly 1,900 square miles, Zakouma is now one of the last bastions of wildlife in all of central Africa, thanks to funding from t...

Researchers map out networks that determine cell fate

...of blood cell differentiation and may in fact be a general feature of other developmental processes." "Understanding the genetic circuitry that orchestrates development of each specialized cell type," Singh added, "should enable us to manipulate it for our own purposes." The researchers focused on how hema...

Mosquito spray increases toxicity of pyrethroids in creek, study finds

...ir earlier studies had shown that pyrethroids from general urban pesticide use were in a high enough concentration to be toxic. The unexpected finding was that PBO left in the water from the mosquito spray made the sediments even more toxic to H. azteca than they already were. The research team found that ...

Technique speeds up detecting, treating wound bacteria

..., antibiotic resistance is a growing threat to the general population, as well as the military. In fact, more than 70 percent of the bacteria that cause hospital-acquired infections are resistant to at least one of the drugs most commonly used to treat them. So far Finegold and his colleagues have been abl...

Bacteria beat the heat

...ow reaction rates changed as things heated up. A general rule for enzyme reactions states that as the heat rises, so does the reaction rate. Contrary to this rule, and the scientist's expectations, both reaction rates peaked at a certain point, and remained steady thereafter. For each enzyme, the peak occu...

Study finds how organs monitor themselves during early development

...ntists in other fields and they can build on those general principles to further their work," she says. A researcher studying the challenge of infertility in humans could apply this study to his or her own work, Dr. Gilboa explains. Studying a model organism like the fly with its short generation time and ea...

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