Tag: "earlier" at biology news
Variation in women's X chromosomes may explain differences among individuals, between sexes
... women remained active. The new work extends that earlier
finding to the full set of X-linked genes and also further reveals that individual women exhibit extensive differences among them with respect to X inactivation, Willard said. In their study, the researchers isolated cell lines from each of 40 women....
VUMC researchers find drug-resistant bacteria MRSA a growing threat
... healthy children to collect samples. Three years earlier
a similar study had been done in the same practices and Creech wanted to see whether things had changed. "We were just trying to get a sense of how common MRSA actually is in the community," he said. "We've known for over a half century that staphy...
Wolves alleviate impact of climate change on food supply, finds new UC Berkeley study
...nal Public Library of Science Biology, builds upon earlier
research led by Wilmers. The earlier
studies found that wolves, unlike other predators, leave behind their kill once they've stuffed them...
Breath may help diagnose infection
... to move into human testing. Having determined in earlier
studies that the early responses of cells to infection vary based on infectious agent, they hope to create cytokine profiles that will help identify specific diseases. They are also working on redesigning the breath collector with an eye towards get...
Scientists identify new model Of NK cell development
... lymph nodes also lacked NK cells. In addition, in earlier
research in Caligiuri's laboratory, scientists had identified two distinct subsets of human NK cells (referred to as CD56 bright and CD56 dim cells) and they observed that the bright subset appeared much more frequently in lymph nodes than in bone ma...
Researchers discover molecule that causes secondary stroke
...researchers called BOXes. Building on Dr. Clark's earlier
studies in rats, the team measured each of the suspect agents in 12 hemorrhagic stroke patients. Within 10 days, four of the group suffered a secondary cerebral vasospasm. The same patients were also found to have elevated levels of bilirubin and sig...
Trio of leukemias share a single mutation
...liferative diseases such as CML, he said. Also, in earlier
work, Gilliland and his colleagues had isolated the mutated gene that produces the activated tyrosine kinase responsible for the myeloproliferative disease hypereosinophilic syndrome. "The three disorders that we studied were the last of these diseas...
Aldo Leopold leadership program moves to Stanford University and awards new fellowships for 2005
...joining the Stanford Institute for the Environment earlier
this year. Debbie Drake Dunne, former director of government relations for the Nature Conservancy of California, has been appointed the new executive director of the program. "The Leopold Leadership Program is a unique and exciting program, and we ar...
Muscle-targeted gene therapy reverses rare muscular dystrophy in mice
...fective treatment for Pompe disease. The Duke team earlier
developed enzyme replacement therapy, in which a normal version of the faulty enzyme in those with the disease is infused weekly. In clinical trials of the replacement therapy, the infusions have already prolonged the lives of many babies with Pompe ...
Autism linked to mirror neuron dysfunction
... behavioral deficits it can be used as a tool for earlier
diagnosis of high-functioning autistics, whose dis...en later. Earlier diagnosis in turn could lead to earlier
interventions. One therapeutic possibility suggested by the study's findings is biofeedback. Pineda...
Weather forecasts may be predictors for prevalence of West Nile virus
...tions. The northern house mosquito became dominant earlier
in the summer in years when temperatures exceeded ...ear, coincided with a warmer spring and summer and earlier
abundance of Cx. pipiens than the two subsequent years. Other weather factors, such as precipitation...
AAAS CEO Alan I. Leshner registers 'strong concerns' over suppression of science films
...h Museum of Science and History, which reversed an earlier
decision and will show "Volcanoes of the Deep Sea" after all. Sincerely, Alan I. Leshner...
Scientists seek answers on what activates deadly anthrax spores
...Bill Boles, M.S., and Sumana Choudhury, M.S. Paige earlier
received a $161,000 graduate fellowship from the Department of Homeland Security to support her research....
Researchers identify cause of 'early bird' sleep disorder
...seems to have this "circadian clock" shift. And in earlier
research, Ptacek and his colleagues had discovered an entirely different gene that causes a similar clock-shift. Both arise because of so-called point mutations in the genes. This means that altering a single base-pair in the gene's long DNA chain is...
Aspirin is safer than warfarin and just as effective for treating blocked arteries in the brain
...or death). Enrollment in the study was terminated earlier
than originally planned on the recommendation of a...this dose because it was the only amount for which earlier
studies had provided good preliminary data. "This is the only dose we know is as effective as warfa...
As the protein folds: The tail of the gene tells the tale of Machado-Joseph disease
...th a longer repeat expansion being associated with earlier
onset and more severe disease. Its symptoms, uncoordinated motor control, worsen with time. To study just how the ataxin-3 protein relates to disease, Bonini and her colleagues worked in a simple model organism, the fruit fly, engineering flies to ...
Community MRSA is re-emergence of 1950s pandemic, study suggests
...eticillin antibiotics - may have evolved from this earlier
pandemic-causing strain. The researchers have sequ...this particular CA MRSA clone has evolved from the earlier
80/81 type, developing resistance to meticillin antibiotics over the last 30-40 years, possibly thro...
Ingredient in garlic protects against severe chronic pulmonary hypertension in rats
...thal. Dr. David D. Ku says the findings confirm an earlier
study by the team that garlic protects against a less lethal form of acute pulmonary hypertension in rats. The new study by Ku, graduate student Hsien Chin Wu and research assistant Xiaowei Sun, not only looks at a chronic form of the disease but al...
'Second messenger' NAADP shows fast, dose-related impact on satiety cycle
...tivates NAADP; so which is 'therapeutic?' Several earlier
drugs designed for obesity treatment were chosen because they released a chemical the hormone serotonin -- in the brain that controls satiation, as well as mood and body temperature. "More recently, another hormone, cholecystokinin, has been conside...
Alcohol 'binges' in rats during early brain development cause circadian rhythm problems
...d to alcohol consistently became active 30 minutes earlier
every day. In situations when the light-dark cycle was shifted six hours earlier, the "jet lag" equivalent for humans having to shift their body clocks when traveling across different time zones, the rats exposed to alcohol in infancy shifted much mo...
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