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Tag: "lower" at biology news

Genes and biomarkers that allow doctors to choose the right therapy for the right patient

...ns to personalize lung or brain cancer therapy and lower the risk of unnecessary radiation treatments. Researchers at Vanderbilt University are using a biomarker library of peptides to determine whether or not tyrosine kinase inhibitor therapy, combined with radiation therapy, is indeed effective against l...

Bats prey on nocturnally migrating songbirds

...g feathers which are casually encountered would be lower than spitting them away (Bontadina & Arlettaz, 2003 Functional Ecology 17, 141-142). In the case of giant noctule bats, it was for sure the description by Ibañez et al. (2001) of a so far totally unrecognized, outstanding predator-prey relati...

Global 'sunscreen' has likely thinned, report NASA scientists

... uninterrupted satellite record of aerosols in the lower atmosphere, a unique set of global estimates funded by NASA. Scientists at GISS created the Global Aerosol Climatology Project by extracting a clear aerosol signal from satellite measurements originally designed to observe clouds and weather systems ...

Xylitol reduces risk of cavities

...stency of the bacteria, but this did not lead to a lower production of lactic acid in plaque. In another study it was shown that a single higher intake of xylitol for a limited time reduced the degree of acidity in plaque between teeth. In a field study involving 128 children aged 7?2, the subjects wer...

Common blood test can help distinguish between mononucleosis and tonsillitis

... the time and an individual with a ratio of .35 or lower would be correctly diagnosed as not having mononucleosis 100 percent of the time. "The specificity and sensitivity of this test seem to be better than the mononucleosis spot test itself," the authors write. "In conclusion, we recommend that the l...

No-scalpel vasectomies by skilled surgeons may speed recovery

...odology is the preferable method to use, as it has lower rate of adverse events," Cook said. "But the no-scalpel technique requires more training and a higher level of skill. One of the most important issues for men seeking a vasectomy is the experience of the surgeon with that particular method." "The...

Sleep disturbances affect classroom performance

...mplaints. According to the surveys, students with lower grade point averages (GPAs) were more likely to have restless, aching legs when trying to fall asleep, difficulty concentrating during the day, snoring every night, a hard time waking up in the morning, sleepiness during the day, and falling asleep i...

Researchers discover new details about HIV-1 entry and infection

...ng HIV transmission and local spread in the female lower genital tract is key to prevent infection and ulti...y the precise mechanisms by which HIV-1 enters the lower reproductive tract of human females. The researchers separated and removed the outer lining of vagin...

Eating less salt could prevent cardiovascular disease

...Boston also found a reduction in salt intake could lower the risk of death from cardiovascular disease by u...ack on salt during the trials tended to stick to a lower salt diet compared to those who had been in the control group. In total the researchers obtained inf...

Swell gel could bring relief to back pain sufferers

...ative to major surgery in the treatment of chronic lower back pain. Dr Brian Saunders from The School of M...ion as the standard surgical treatment for chronic lower back pain." He added that future work will investigate biodegradable microgels that release addit...

New cigarette designs don't offer lower predicted cancer risks

...ng cancer from PREP cigarettes is not meaningfully lower than for the conventional cigarettes that most smokers puff on every day. The report demonstrates that science does not adequately understand the sources of the cancer effects of smoke from conventional cigarettes. As a result, even if some of the...

Flavanols in cocoa may offer benefits to the brain

...na Indians living on the islands had significantly lower rates of heart disease and cancer compared to those on the mainland. The relative risk of death from heart disease on the Panama mainland was 1,280 percent higher than on the islands and death from cancer was 630 percent higher. In his AAAS presenta...

Tears reveal some of their deepest secrets to researchers

...usters of cells that line the rim of our upper and lower eyelids ?the outlets to these glands are roughly a...lashes. Researchers gently pressed the volunteers' lower eyelids and collected droplets of meibum in tiny glass tubes. The researchers examined the meibum...

Lead-'scrubbing' drug may also improve muscle function in lead-exposed children

...suffer more accidental injuries than those who had lower lead exposure. He says further research is needed to determine if succimer therapy can minimize long-term negative effects of lead on balance and movement. According to the most recent U.S. National Health and Nutrition Examination Survey, mor...

Salamanders suffer delayed effects of common herbicide

... mortality benefited the survivors who experienced lower competition-related mortality after metamorphosis....rvivors of the atrazine exposure had significantly lower survival 421 days after being exposed. In other words, effects of early exposure to the chemical wer...

Microfossils unravel climate history of tropical Africa

...eratures over tropical Africa were 21°C, about 4°C lower than today, whereas the tropical Atlantic Ocean was only about 2.5°C colder. By comparing this temperature difference with existing records of continental rainfall variability, lead author Johan Weijers and his colleagues concluded that the land-sea ...

Moonlighting enzyme linked to neurodegenerative disease

...nal to the decrease in the levels of frataxin: the lower the frataxin, the more severe the disease. "Yet, this correlation does not completely explain the clinical variability because even within the same family we may see individuals with different phenotypes -- one more severe than the other," Dr. Isaya ...

Lower carbon dioxide emissions from coal-fueled power plants possible with technology development

... officer, TXU Power. “TXU has outlined a vision to lower carbon dioxide emission rates through development of new technologies, and Dr. Rochelle’s research will undoubtedly make great strides toward this development.? Rochelle spent the past six years developing the technology with funding from the U.S. ...

Targeting tumors the natural way

...s usually reside on healthy cells, too - albeit in lower numbers - therapies aimed at these receptors are always expected to have debilitating side effects. That's why Kiessling's approach holds such promise. "What we've shown is that you don't need a receptor that's found solely on tumor cells," she say...

Organic is healthier: Kiwis prove that green is good

...ounds in grapefruit and oranges have been shown to lower cholesterol levels in the blood. Two flavanones, hesperidin and naringin, were extracted from citrus fruits and fed to rats split into groups with some receiving high levels of cholesterol in their diet. Shela Gorinstein of The Hebrew University in J...

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