• 研究人员发现引起疟疾抗药性的基因

    11-04-24 Using a pair of powerful genome-search techniques, researchers from the Harvard School of Public Health (HSPH), Harvard University, and the Broad Institute have identified several genes that may be implicated in the malaria(疟疾,瘴气) parasite's...

  • 免疫分子规范脑细胞连接

    11-02-28 The number of connections between nerve cells in the brain can be regulated by an immune system molecule, according to a new study from UC Davis. The research, published Feb. 27 in the journal Nature Neuroscience, reveals a potential link between im...

  • 黑素瘤早期发展所需的蛋白质被发现

    10-12-24 Melanoma(黑素瘤) is one of the least common types of skin cancer, but it is also the most deadly. Melanocytes(生黑色素细胞) (pigment-producing skin cells) lose the genetic regulatory mechanisms that normally limit their number, allowing them to...

  • 科学家破译30亿年前的化石基因

    10-12-20 About 580 million years ago, life on Earth began a rapid period of change called the Cambrian(寒武纪) Explosion, a period defined by the birth of new life forms over many millions of years that ultimately helped bring about the modern diversity of...

  • 控制女性性成熟的基因同时影响脂肪代谢

    10-11-23 An international group of scientists, including researchers at the Medical Research Council (MRC), has discovered 30 genes that control the age at which girls reach sexual maturity. They found that many of the genes responsible for puberty(青春期,...

  • 细菌基因突变可产生意外的效用

    10-11-07 Most mutations(突变,变化) in the genes of the Salmonella bacterium(沙门氏菌) have a surprisingly small negative impact on bacterial fitness. And this is the case regardless whether they lead to changes in the bacterial proteins or not. This is...

  • 拯救非洲农作物免受寄生植物侵害

    10-09-12 Each year, thousands of acres(英亩) of crops are planted throughout Africa, Asia and Australia only to be laid to waste by a parasitic(寄生的) plant called Striga(独脚金) , also known as witchweed. It is one of the largest challenges to food s...

  • 基因微型启动因子将促进研究与治疗

    10-08-31 University of British Columbia researchers have led the development of a new toolbox of MiniPromoters for research and future therapies on brain, spinal cord(脊髓) and eye function. MiniPromoters are small segments(片段) of human DNA with the ab...

  • 晚育趋势将使女性生育年龄增大

    10-07-31 The fashion for having children later in life could lead to women becoming more fertile in their 40s and beyond, scientists have suggested. 科学家指出,现在的晚育趋势将让未来女性40岁以后的生育能力增强。 As many women wait until they are older to giv...

  • 为什么减肥餐不对所有人都有效?

    10-07-29 Ever notice some people seem to eat anything they want and never gain a pound, while others seem to gain weight just by looking at fattening foods? You may be seeing things correctly after all. According to research published in the July 2010 issue...