Tag: "persist" at biology news

Researchers at Cedars-Sinai Medical Center to present first documentation of man-made chemical contaminants in the amniotic fluid of unborn babies

...me compoundsthat get into a mother's blood tend to persist for days or weeks while othersare short-lived, remaining in the system for only hours or days before beingexcreted. But no one knows what happens if these short-lived compounds aretransferred from the mother to the baby who is developing in a closede...

UI researchers begin to unravel the underlying mechanism of migraines

...ody has ever figured out why the painful headaches persist aslong as they do. Until now. University of Iowa researchers Paul Durham, Ph.D., a postdoctoral fellow inphysiology and biophysics, and Andrew Russo, Ph.D., an associate professor ofphysiology and biophysics, have identified a feedback loop mechanism...

Blocking VEGF can enhance radiation therapy

...erexposure to radiation, and these elevated levels persist for up to two weeks. Byspeeding the growth of new blood vessels to supply the radiation-damaged tumor,VEGF helps the cancer bounce back from radiation therapy, contributing to atumor's ability to resist this form of treatment. So Weichselbaum's team ...

Chemistry of alcoholism, vitamin C and stress addiction antibodies, futurefoods, preventing brain cell death, children's environmental health risks

... in ethnic minorities and how long elevated levels persist from infancythrough childhood, along with comparative levels in adults. (See page 89, ENVR17, Sunday, August 22, 1:30 p.m., Convention Center, Room 209, in the finalprogram.) - Children's exposure to pesticide health risks at home, including exposure...

Climate change and greenhouse gases: The scientific literature reviewed

...alperiod. Elevated concentrations are predicted to persist for up to thousands ofyears. By increasing the amount of infrared radiation absorbed into theatmosphere, these gases produce a warming influence at the Earth's surface. The authors note that carbon dioxide is not the only influence on global climatec...

Perchlorate found in fertilizers

...bile insurface water and groundwater, where it can persist for several decades, thestudy notes. There is no national standard for perchlorate in drinking water, but monitoringprograms are likely to expand as analytical methods are standardized. The study concludes with a call for more research: "Clearly, imp...

New study claims data on pollutants worldwide are unreliable, and that some may be less--or more--harmful than thought

...nmental changes appearto alter which mirror-images persist in the environment by affecting soilmicrobes respo...mental changes affect which mirror-image molecules persist in theenvironment." The results, the authors said, indicates a complexity that means current...

A relative of smallpox is first virus found to invade cells as HIV does

... 700 years ago," Lalani said. "Mutations generally persist only when they provide a survival advantage, and certainly smallpox was a major epidemic which claimed countless lives during this timeframe. "Our new finding that a relative of the smallpox virus uses chemokine receptors such as CCR5 receptors to ...

Researchers find volcanoes are bad for your health...long after they finish erupting

...ht) of fine ash. Ash falls from such a volcano can persist for months or even years. The Soufriere Hills volcano began erupting on 18th July 1995 but airborne ash concentrations in the area have been continually monitored since 1997, and have often detected concentrations of ash that have exceeded the UK's a...

Formula additives boost small children's intelligence in study

...ears, to see if their gains in intelligence scores persist into early childhood....

Best bet for saving cave species

...aves. In addition, water-borne contaminants can persist for months in cave ecosystems. Cave streams in West Virginia's agricultural areas have elevated levels of nitrates and pesticides. Other sources of subterranean water contamination include accidental spills, gasoline storage tank leaks and illeg...

Arctic ozone depletion linked to longevity of polar stratospheric clouds, according to studies

...e enough to cause these clouds to form earlier and persist longer, said Toon. Greenhouse gases may be radiating energy and heat away from the upper stratosphere, creating prime conditions for polar stratospheric cloud formation. "With the clouds persisting longer, we are seeing greater ozone losses eve...

Can a deadly spider replace chemical pesticides?

... virus can replicate, the modified virus shouldn't persist in the environment, say the researchers. "I welcome a potentially environmentally friendly pest control but it's abundantly clear we need to be more firm about risk issues," comments George McGavin, an entomologist at Oxford University. "If we are n...

Protracted cooling could camouflage effects of global warming

...atmospheric scientist. "If global warming doesn't persist year after year, we shouldn't be fooled into thinking that human effects are no longer of concern. There is something else at work here that we don't yet fully comprehend." Using a simple climate/ocean model, Schlesinger and his wife, Natalia Andron...

Researchers find key to tuberculosis persistence in the body

...though they are not multiplying. The infection can persist in a latent or chronic state for the lifetime of the host and can flare up if the immune system is later weakened. The bug's persistence in the body has been the main barrier to clearing the TB pathogen with drugs. Current treatments require three to...

Middle-aged women who consume many fruits and vegetables are at much lower risk of cardiovascular disease

...ration of relative risk, though risk reduction did persist to a lesser extent among smokers. Other additional risk factors such as overweight (BMI > 25), family history of an early MI, or the addition of red meat to the diet did not significantly alter the magnitude of risk reduction. In an accompany...

Effect of exercise on reducing major depression appears to be long-lasting

...ion is that the effectiveness of exercise seems to persist over time, and that patients who respond well to exercise and maintain their exercise have a much smaller risk of relapsing," said lead researcher, Duke psychologist James Blumenthal, who published the results of his team's study in the October issue...

Scientists use new technique to pinpoint key gene in infectious fungus

...he fungus that causes histoplasmosis to infect and persist in humans. They used a novel technique that may prove valuable in the search for drug targets in this and other disease-causing fungi. "Histoplasmosis occurs all over the world, but the greatest concentration of cases is in the Mississippi and Ohio...

Natural selection for lactose tolerance

...testinal lactase, the enzyme that digests lactose, persist into adulthood. Individuals without significant levels of lactase are lactose intolerant, and the frequency of lactose tolerance varies between populations. Dr. Dallas Swallow and colleagues have examined the lactase gene in several human populations...

Reducing sodium leads to substantial drop in blood pressure, finds NHLBI study

...st that the benefit on blood pressure is likely to persist over the long term as long as people continue following the DASH diet and lower sodium intake, she adds. How does one get to a daily level of 1500 mg of sodium (the equivalent of 4 grams or 2/3 teaspoon of table salt)? According to Dr. Obarzane...

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(Date:4/17/2014)... signs of chronic inflammation in non-cancerous prostate tissue may ... cancer than those with no inflammation, according to results ... Johns Hopkins Kimmel Cancer Center. , The link between ... with so-called high-grade prostate cancer those with a ... presence of the most aggressive and rapidly growing prostate ...
(Date:4/17/2014)... a study published today in PLOS Pathogens , ... malaria is common can mount an immune response to ... avoid repeated bouts of high fever and illness and ... bloodstream. The findings may help researchers develop future interventions ... malaria parasite. , Each year, approximately 200 million cases ...
(Date:4/17/2014)... In a review published in the April issue of ... The Feinstein Institute for Medical Research, says it,s time ... approach to treating sepsis, which kills millions ... Sepsis occurs when molecules released into the bloodstream to ... body. Inflammation is necessary for maintaining good health ...
(Date:4/17/2014)... Doctors who treat patients with a severe and ... an agonizing treatment decision. , The drug sirolimus ... relieve shortness of breath. But some patients eventually ... potentially fatal complications following transplantation. , "It,s a ... director of Loyola University Medical Center,s LAM Clinic ...
(Date:4/17/2014)... By discovering a new mechanism that allows blood to ... UC Irvine and the Salk Institute have opened the ... stroke-induced brain damage. , A complex and devastating neurological ... primary reason for disability in the U.S. The blood-brain ... blood-borne material into the brain, causing the permanent deficits ...
Breaking Medicine News(10 mins):Health News:Chronic inflammation linked to 'high-grade' prostate cancer 2Health News:Chronic inflammation linked to 'high-grade' prostate cancer 3Health News:Study sheds light on how the immune system protects children from malaria 2Health News:Feinstein Institute researcher publishes new perspective on sepsis 2Health News:Patients with rare lung disease face agonizing treatment dilemma 2Health News:Patients with rare lung disease face agonizing treatment dilemma 3Health News:Study IDs new cause of brain bleeding immediately after stroke 2
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