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Tag: "atr" at biology news

Undesirable expatriates: Preventing the spread of invasive animals

Reconsider relocating aquarium fish into your backyard pond. Restrain yourself from ordering exotic pets off the Internet, no matter how interesting they might look in the pictures. And vote for politicians that encourage sound port inspection. Because, according to recent Proceedings of the National Academy of Sciences article by Drs. Jonathan M. Jeschke and David L. Strayer, our best defense in...

Multiple-drug resistant gene expression pattern predicts treatment outcome for pediatric leukemia

A new study is providing scientists with a better understanding of why some pediatric acute lymphoblastic leukemia (ALL) patients fail to respond to treatment even when existing clinical predictive criteria point towards a positive treatment outcome. The research, published in the April issue of Cancer Cell, is likely to facilitate development of new strategies to combat drug resistance and treat...

Discovery of New Dopamine Action May Yield Alternative Psychiatric Drugs

Duke University Medical Center researchers have discovered a new mechanism by which chronically high levels of the neurotransmitter dopamine exert their effects on the brain. Normally associated with triggering feelings of pleasure, excess concentrations of dopamine underlie schizophrenia, attention deficit hyperactivity disorder and other psychiatric conditions. The findings therefore provide ne...

DOE's Office of Science sets up program to aid scientists displaced by Hurricane Katrina

The Department of Energy's (DOE) Office of Science has established a program to assist scientists displaced by the effects of Hurricane Katrina. . .. "The Office of Science would like to help in the effort t...

UNC computer, marine scientists collaborate to predict flow of toxic waters from Katrina

In the immediate wake of Hurricane Katrina, scientists and research centers from across the country came together to generate information on the contaminated floodwaters and offer it to hazardous materials experts and public health officials. . .. Floodwaters containing organic...

NIEHS launches website with information for assessing environmental hazards from Hurricane Katrina

A new website with a Global Information System will provide valuable information for assessing environmental hazards caused by Hurricane Katrina. The National Institute of Environmental Health Sciences (NIEHS), one of the National Institutes of Health, created the website to provide the most up-to-date data to public health and safety workers on contaminants in flood waters, infrastructure and in...

Katrina floodwaters not as toxic to humans as previously thought, study says

The floodwaters that inundated New Orleans immediately following Hurricane Katrina were similar in content to the city?s normal storm water and were not as toxic as previously thought, according to a study by researchers at Louisiana State University. Their study, the first peer-reviewed scientific assessment of the water quality of the Katrina floodwaters, is good news for those who've been expo...

Resveratrol prolongs lifespan and delays onset of aging-related traits in a short-lived vertebrate

By studying a particularly short-lived fish species, researchers have been able to show that a natural compound previously shown to extend lifespan in non-vertebrate organisms can also do so in at least one vertebrate species. The findings, reported by Alessandro Cellerino of the Scuola Normale Superiore, Pisa, and colleagues, support the potential utility of the compound in human aging research....

Albatross study shows regional differences in ocean contamination

As long-lived predators at the top of the marine food chain, albatrosses accumulate toxic contaminants such as PCBs, DDT, and mercury in their bodies. A new study has found dramatic differences in contaminant levels between two closely related albatross species that forage in different areas of the North Pacific. Researchers also found that levels of PCBs and DDT have increased in both species ov...

Matrilin-3 gene discovered to prevent onset of osteoarthritis

A gene that is associated with osteoarthritis and skeletal deformities in people has been shown to be responsible for preventing the onset of osteoarthritis in adult mice, according to a recent study led by Rhode Island Hospital. The matrilin-3 gene plays a role in early bone development, controls bone mineral density in adulthood and prevents osteoarthritis later in life. . Mutations in matril...

Mice learn tasks that may help treat human psychiatric disorders

Mice that couldn't be dissuaded from the object of their attention by a piece of sweet, crunchy cereal may help researchers find new treatments and cures for human disorders like autism and Parkinson's disease. . For the first time, a psychiatric test for monitoring many human mental abnormalities has been adapted for use in mice, according to researchers at Purdue University, University of Calif...

Serengeti patrols cut poaching of buffalo, elephants, rhinos

A technique used since the 1930s to estimate the abundance of fish has shown for the first time that enforcement patrols are effective at reducing poaching of elephants, African buffaloes and black rhinos in the Serengeti National Park in Tanzania. . "Wildlife within protected areas is under increasing threat from the bushmeat and illegal trophy trades, and many argue that enforcement within pr...

New species declared: Clouded leopard on Borneo and Sumatra

Scientists have discovered that the clouded leopard found on the islands of Borneo and Sumatra is an entirely new species of cat. The secretive rainforest animal was originally thought to be the same species as the one found in mainland Southeast Asia. . Genetic analysis conducted at the U.S. National Cancer Institute shows that the difference between the two clouded leopard species is comparab...

Surgeons develop simpler way to cure atrial fibrillation

Physicians have an effective new option for treating atrial fibrillation, a common irregular heart rhythm that can cause stroke. Heart surgeons at Washington University School of Medicine in St. Louis have developed and tested a device that radically shortens and simplifies a complex surgical procedure that has had the best long-term cure rate for persistent atrial fibrillation. . The simplified...

ATR checkpoint-activating DNA structure

As published in the April 15th issue of Genes & Development, Dr. Karlene Cimprich and colleagues at Stanford University have determined the minimal DNA structure sufficient to activate the ATR-mediated DNA damage checkpoint. . .. Using Xenopus egg extracts as a cell-free system, the researc...
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Breaking Biology News(10 mins):Newborn screening expansion offers early diagnosis and treatment to infants with SCID 2Newborn screening expansion offers early diagnosis and treatment to infants with SCID 3Scientists learn more about rare skin cancer that killed Bob Marley 2
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Breaking Medicine News(10 mins):Health News:Report: Only 20 Percent of Healthcare Providers Meet ACA Requirement 2Health News:Centurion Service Group Named to Inc. Magazine's List of the Nation's Fastest-Growing Private Companies 2Health News:Centurion Service Group Named to Inc. Magazine's List of the Nation's Fastest-Growing Private Companies 3Health News:Centurion Service Group Named to Inc. Magazine's List of the Nation's Fastest-Growing Private Companies 4Health News:Zero to a Hundred: True Story of Escaping Death to Meet Life 2Health News:ACC Health Raises the Bar Again by Completing the CQIIP Certification Program 2Health News:OncoFinder, a new algorithm for minimizing errors in high-throughput transcriptome analysis 2
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