日期：2011-10-25 Researchers may have found a specific dietary pattern linked to levels of C-peptide concentrations that increase a woman's risk for colorectal（结肠直肠的） cancer. High red meat intake, fish intake, sugar-sweetened beverage（饮料） intake, but low... 阅读全文>>

日期：2011-10-25 Nutrition Facts labels have been used for decades on many food products. Are these labels read in detail by consumers when making purchases? Do people read only certain portions of the labels? According to a new study published in the November issue... 阅读全文>>

日期：2011-10-25 Postmenopausal（绝经后的） women who gained weight during adulthood had an increased risk for endometrial（子宫内膜的） cancer compared with women who maintained a stable weight, according to data from the American Cancer Society's Cancer Prevention... 阅读全文>>

日期：2011-10-25 Increasing acidification（酸化） in coastal waters could compromise the ability of oysters and other marine creatures to form and keep their shells, according to a new study led by University of Georgia researchers. Their findings will be published... 阅读全文>>

日期：2011-10-25 Physical activity may be what the doctor orders to help patients reduce their risk of developing glaucoma（青光眼） . According to a recently published scientific paper, higher levels of physical exercise appear to have a long-term beneficial impact... 阅读全文>>

日期：2011-10-25 Researchers confirmed an association between tanning bed（日光浴床） use and an increased risk for three common skin cancers -- basal cell carcinoma, squamous（鳞状的） cell carcinoma and melanoma, according to results presented at the 10th AACR Int... 阅读全文>>

日期：2011-10-21 A new study concludes that men who experience persistently moderate or high levels of stressful life events over a number of years have a 50 percent higher mortality rate. In general, the researchers found only a few protective factors against these... 阅读全文>>

日期：2011-10-21 Patient handovers have increased significantly as a result of the restrictions on the number of hours residents are allowed to work. Multiple shift changes, and resulting consecutive sign-outs, during patient handovers are linked to a decrease in bo... 阅读全文>>

日期：2011-10-21 Culture is not a trait that is unique to humans. By studying orangutan（猩猩） populations, a team of researchers headed by anthropologist（人类学家） Michael Krtzen from the University of Zurich has demonstrated that great apes also have the abilit... 阅读全文>>

日期：2011-10-21 A recent UT Southwestern Medical Center study found that estrogen（雌性激素） regulates energy expenditure, appetite and body weight, while insufficient estrogen receptors in specific parts of the brain may lead to obesity. Estrogen has a profound e... 阅读全文>>

日期：2011-10-20 Contrary to common belief, men age 75 and older are diagnosed with late-stage and more aggressive prostate cancer and thus die from the disease more often than younger men, according to a University of Rochester analysis published online this week i... 阅读全文>>

日期：2011-10-20 It has long been known that distinctive blue flashes--a type of bioluminescence--that are visible at night in some marine environments are caused by tiny, unicellular（单细胞的） plankton known as dinoflagellates（鞭毛藻类） . However, a new study h... 阅读全文>>

日期：2011-10-20 Pesticides and pollutants are related to a 450 percent increase in the risk of spina bifida and anencephaly（先天无脑畸形） in rural China, according to scientists at The University of Texas at Austin and Peking University. Two of the pesticides fou... 阅读全文>>

日期：2011-10-20 A human antibody given to monkeys infected with the deadly Hendra virus completely protected them from disease, according to a study published by National Institutes of Health (NIH) scientists and their collaborators. Hendra and the closely related... 阅读全文>>

日期：2011-10-19 Smithsonian scientists have discovered two new, closely related bee species: one from Coiba Island in Panama and another from northern Colombia. Both descended from of a group of stingless bees that originated in the Amazon and moved into Central Am... 阅读全文>>

日期：2011-10-19 Microscopic animals that live in soils are as diverse in the tropical forests of Costa Rica as they are in the arid（干旱的） grasslands of Kenya, or the tundra（苔原） and boreal forests（北方森林） of Alaska and Sweden. That conclusion is found in... 阅读全文>>

日期：2011-10-19 Genetic resistance to a parasitic nematode（线虫） that infects sheep has been discovered by a team of scientists with the U.S. Department of Agriculture (USDA) and the International Livestock Research Institute (ILRI). The researchers are the first... 阅读全文>>

日期：2011-10-19 For better and for worse, human health depends on a cell's motility -- the ability to crawl from place to place. In every human body, millions of cells -are crawling around doing mostly good deeds -- though if any of those crawlers are cancerous, wa... 阅读全文>>

日期：2011-10-18 Antiviral drugs（抗病毒药） progression of Alzheimer's disease (AD), a new study shows. The University of Manchester scientists have previously shown that the herpes simplex virus type 1 (HSV1) is a risk factor for Alzheimer's when it is present in... 阅读全文>>

日期：2011-10-18 Like all galaxies, our Milky Way is home to a strange substance called dark matter. Dark matter is invisible, betraying its presence only through its gravitational pull. Without dark matter holding them together, our galaxy's speedy stars would fly... 阅读全文>>