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Tag: "lower" at biology news

Agent slows aging in mice

...athways to death and disability, or need higher or lower levels of NDGA to see an effect.” The large, carefully controlled study at three sites, called the NIA Interventions Testing Program, is intended to provide some of the first reliable data on potential drugs to slow aging and its accompanying il...

Blood test may help signal tumor's remission, return in throat cancer patients

...ents with the sharpest rises in protein levels had lower chances for survival, with patients who had a history of smoking experiencing the largest spikes. (For this reason, estimates of relative risk of death were adjusted to exclude the compounding effects of smoking.) Because the production of these g...

Soils offer new hope as carbon sink

...s given off from the soils and found significantly lower emissions of carbon dioxide and nitrous oxide (a greenhouse gas more than 300 times as potent as carbon dioxide). NSW DPI environmental scientist Steve Kimber said an added benefit for both the farmer who applies agrichar and the environment is th...

Old memory traces in brain may trigger chronic pain

... have decreased.” He said the drug potentially may lower the amount of standard analgesics people have to use. In Apkarian’s previous study, published in late 2006, he revealed that chronic back pain appears in a different part of the brain than the discomfort of burning your finger, for example. With ...

Hormone helps mice 'hibernate,' survive starvation

... member of a hormone family that has been shown to lower blood glucose levels in diabetic and obese mice. FGF21, in turn, stimulates the use of stored fats as energy and causes torpor. In properly fed mice, FGF21 is not normally active; however, when the researchers introduced FGF21 into these mice, the...

Pesticides choke pathway for nature to produce nitrogen for crops

...crops and soil bacteria. The disruption results in lower yields or significantly delayed growth. In a paper appearing online this week ahead of the regular publication by the Proceedings of the National Academy of Sciences (PNAS), the five-member team reports that agrichemicals bind to and block connect...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...y are toxic,” he says. “The problem is, if you use lower concentrations, you cannot get true vitrification.” The agents are needed to intercept water so it won’t form ice. Interestingly if small ice crystals form during cooling, they can get larger during de-vitrification, which takes place in seconds. ...

In mice, drug protects against diabetes and atherosclerosis

...hat received the inhibitor drug were found to have lower blood sugar and triglycerides -- a component of "bad" cholesterol -- and significantly improved insulin sensitivity compared to control mice. Tests also showed that the drug reduced the activity of gene pathway called JNK that triggers the inflammat...

Research shows cord blood comparable to matched bone marrow

...making cells in the body, it was associated with a lower risk of graft versus host disease, a potentially l...are mismatched. Rates of leukemia relapse also are lower with mismatched umbilical cord blood transplants. This study also showed that in addition to having ...

College students who pull 'all-nighters' and get no sleep more likely to have a lower GPA

...otal sleep deprivation, a practice associated with lower grade-point averages compared to those who make time for sleep, according to a research abstract that will be presented Wednesday at SLEEP 2007, the 21st Annual Meeting of the Associated Professional Sleep Societies (APSS). "Sleep in college student...

Children of smokers have more than 5 times higher levels of a nicotine toxin

...ke to get rid of it. Sleeping with parents and lower temperature rooms were also associated with increased amounts of cotinine. Cotinine was measured in 100 urine samples taken from infants aged 12 weeks. Seventy one of the babies had at least one parent that smoked and the parents of the other 33...

CU study reveals why starling females cheat

...ein. No one knows why superb starling females have lower rates of cheating, but Rubenstein said it suggests that there may be less conflict between the sexes than in other species. He is currently researching this issue. While it has long been known that males of many species cheat and mate widely to pr...

Electric fish conduct electric duets in aquatic courtship

..., noting that the males also serenade females with lower frequency "creaks." The researchers developed custom software that offers new techniques for separating and documenting electrical pulses based on sex. They video recorded four pair of mating mormyrids (a feat in itself, since the species rarely b...

Male circumcision overstated as prevention tool against AIDS

...ss AIDS than southern and western Africa, but this lower prevalence is not due to higher numbers of circumscribed males in these Muslim communities, but rather results from the fact that there are significantly fewer prostitutes in northern Africa on a per capita basis. It appears that religious families i...

Smoking rate has plummeted in New York City

...Weekly Report (MMWR). The 2006 rate was nearly 20% lower than the 2002 rate -- a decline that represents 24...rate for 2006 is the lowest on record (17.5%), and lower than all but five U.S. states (California, Washington, Idaho, Utah and Connecticut). Over the past y...

Definitive evidence found of a swimming dinosaur

...as ghost traces, possible undertracks preserved in lower layers of sediment. "The trackway at La Virgen del Campo opens the door to several new areas of research," said Costeur. "New biomechanical modeling will increase our understanding of dinosaur physiology and physical capabilities, as well as our ...

Human stem cell treatment restores motor function in paralyzed rats

...ty and rigidity, or loss of muscle control, in the lower limbs, even though the spinal cord is intact. “...eks, and three others had improved mobility in all lower extremity joints. All nine animals grafted with hSSCs achieved significantly better motor scores tha...

Pistachios lower cholesterol, provide antioxidants

A handful of pistachios may lower cholesterol and provide the antioxidants usually found in leafy green vegetables and brightly colored fruit, according to a team of researchers. "Pistachio amounts of 1.5 ounces and 3 ounces ?one to two handfuls ?reduced risk for cardiovascular dise...

A cherry on top: Tart cherries may alter heart/diabetes factors

... received powdered tart cherries in their diet had lower total cholesterol, lower blood sugar, less fat storage in the liver, lower oxidative stress and increased production of a mol...

More recycling on the farm could reduce environmental problems

...arming argue for a shift toward practices that use lower inputs of pesticides and energy and more recycling of energy and materials, according to an article published in the May 2007 issue of BioScience. The author, Craig J. Pearson of the University of Guelph, documents how semiclosed agricultural systems...

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