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Tag: "group" at biology news

Tibetan antelope slowly recovering, WCS says

... hunting and hybridization with domestic yak. The group saw an increase in wild asses, too, though they are persecuted by nomads who believe they compete with livestock for grass. Schaller noted that some nomadic communities living in the Chang Tang region have made concerted efforts to safeguard thei...

New success in engineering plant oils

...an interesting challenge," remarked Shanklin. "Our group sought to gain a better understanding of the enzymes and metabolic pathways that produce these oils to find ways to manipulate the accumulation of fats using genetic techniques." The researchers focused on an enzyme known as KASII that normally el...

Heart failure: Intervention possibilities from imaging programmed cell loss

...is needed since the study was performed on a small group of heart patients. "Heart failure is a major health care problem," said Hofstra, "and researchers are looking at novel ways to improve patient care." With heart failure, a person's heart no longer pumps sufficient blood to the body's organs. Near...

Transfusion expert urges wider use of filtered blood

...sions through its regulatory power." Blumberg's group reviewed approximately 520 abstracts and nine publ... data in some cases. The chief problem, Blumberg's group discovered, was that some studies included hundreds of patients who never received blood transfusion...

Paper challenges 1491 Amazonian population theories

...s that transformed the landscape en masse. Another group of archaeologists say that transformation was very much limited to river corridors, and if you went away from the river corridors there wasn't that much impact. That's what our findings tend to support." Bush doesn't expect that his new findings w...

Jefferson scientists find rabies-based vaccine could be effective against HIV

... and saw SIV/HIV-specific immune responses. The group then challenged the animals with SIV and measured various parameters of infection, such as immune system CD4 cell count, amount of virus in the bloodstream and immune system antibody response. They found that those animals that were given the test va...

Gut research yields new anti-cancer approach

...esophagus, liver and skin. Early work shows that a group of compounds called peroxisome proliferator-activated receptor-gamma (PPARgamma) inhibitors may have an unexpected cancer-fighting effect, according to research published today in the journal International Cancer Research. Furthermore, the new studie...

A 'traffic light' for neurons means 'go' for improving brain research

...engineering and of psychiatry who led the research group that authored the paper, received the NIH award in...ircuits," says Deisseroth, whose Stanford research group collaborated with researchers at the Max Planck Institute of Biophysics, the Johann Wolfgang Goethe ...

Gene tests and brain imaging reveal early dementia

... able to show that some of the people in this risk group had reduced parietal lobe activity, detectable using an MR camera, and that these same people were the ones who went on to suffer memory deterioration two to three years later. "It's surprisingly difficult to diagnose Alzheimer's with any certain...

Row over study puts Korea's scientific community under scrutiny again

...d by alleging that Dr Kim had defamed her. The CHA group also claims that Dr Kim stole the data used in the...on leaves little doubt about how seriously the CHA group views the potential of the incident to damage its bid to inherit Hwang's crown, says Gornall. Before...

In obesity, brain becomes 'unaware' of fat

...example of classic hormone resistance.? Cowley’s group set out to show exactly where that breakdown occurs. The researchers fed mice a high-fat diet for 20 weeks, a long time for the mice, which live only for a couple of years. For reasons that remain unclear, some of the genetically identical mice becam...

Male-killing bacteria makes female butterflies more promiscuous

...terfly the entire mating system is determined by a group of bacteria known as Wolbachia, according to the study, published in the journal ‘Current Biology'. Dr Sylvain Charlat, of the UCL Department of Biology, who led the study, said: "Male-killling bacteria are found in many insect species including t...

Aspirin discovery may improve cancer treatments

... of cellular stress, eIF2Ą is phosphorylated by a group of proteins called stress-activated kinases. One of these is protein kinase R-like endoplasmic reticulum kinase (PERK). The research showed that salicylates caused an early increase in the phosphorylation of eIF2Ą in normal mouse cells, but not ...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...a from one flock in the antibiotic-free commercial group were resistant to the drug oxytetracycline, for ex...y-seven percent were resistant in the experimental group that was not given antibiotics. Strikingly, they even found bacteria resistant to streptomycin, ...

Action video games sharpen vision 20 percent

...ere then divided into two groups. The experimental group played Unreal Tournament, a first-person shoot-'em...ction game, for roughly an hour a day. The control group played Tetris, a game equally demanding in terms of motor control, but visually less complex. Aft...

Mine runoff continues to provide clues to microbial diversification

...ory and UC Berkeley discovered that Leptosprillium group II bacteria in these streams are exchanging large blocks of genes. While scientists have seen extensive gene transfer in bacteria, this is the first observation of exchange of huge genomic blocks in a natural microbial community. “Consequently, th...

Major gene study uncovers secrets of leukemia

...ail that was previously unattainable. The St. Jude group used this approach to analyze leukemia samples from 242 pediatric patients with ALL. This identified an unexpectedly high frequency of mutations involving genes that function as master regulators of normal B-cell development and differentiation. ...

Researchers learn what sparks plant growth

...ctoral fellow in Chory’s lab. Chory’s research group is interested in identifying the mechanisms by which plants alter their shape and size in response to changes in their environment. Chory studies Arabidopsis, a member of the mustard family that is to plant biologists what the mouse is to mammalian g...

Horse genome assembled

...0-year collaborative effort among an international group of scientists to use genomics to address important health issues for equines, known as the Horse Genome Project ( www.uky.edu/Ag/Horsemap/ ). The horse whose DNA was used in the sequencing effort is a Thoroughbred mare named Twilight from Cornell Uni...

'Marathon mice' elucidate little-known muscle type

...ss is known about IIX fibers is that no one muscle group is packed with them," Spiegelman said. "For the fi... 26 min for their normal littermates, Spiegelman's group reported. "These data have potential importance for the therapy of a number of muscular and neuro...

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