• 痴呆患者大脑中的弱点被发现

    14-11-26 The brain has a weak spot for Alzheimer's disease and schizophrenia, according to UK scientists who have pinpointed the region using scans. 英国科学家指出,阿尔茨海默症以及精神分裂症患者的大脑中有一处弱点,他们已经通过扫描准确找到了这一区域。 The br...

  • 基因多样性能减缓病毒的传播

    14-11-19 When a viral infection spread through five genetically identical mice in a row, the virus replicated faster and became more virulent or severe. But when the infection spread one-by-one through five genetically diverse mice, the virus had trouble ada...

  • To Kill a Mockingbird 杀死一只知更鸟 Chapter 9

    14-11-13 You can just take that back, boy! This order, given by me to Cecil Jacobs, was the beginning of a rather thin time forJem and me. My fists were clenched and I was ready to let fly. Atticus had promised mehe would wear me out if he ever heard of me f...

  • 奥巴马讲话 全力抗击埃博拉病毒

    14-11-02 Hi everybody, this week, we remained focused on our fight against Ebola. In Dallas, dozens of family, friends and others who had been in close contact with the first patient, Mr. Duncan, were declared free of Ebola -- a reminder that this disease is...

  • 有关退行性疾病的新发现

    14-10-14 Researchers from the University of Melbourne have established how two diseases that present in similar ways are in fact quite different. Progressive Supranuclear palsy (PSP) and Parkinson's Disease (PD) have overlapping symptoms but remain difficult...

  • 1型糖尿病的治疗方法获大突破

    14-10-13 The hunt for a cure for type 1 diabetes has recently taken a tremendous step forward, scientists have said. 科学家们称,1型糖尿病的治疗方法最近取得了巨大的进步。 The disease is caused by the immune system destroying the cells that control blood suga...

  • 肺癌可以潜伏20多年

    14-10-13 UK scientists have discovered that lung cancers can lie dormant for over 20 years before suddenly turning into an aggressive form of the disease, according to a study published in Science today (Thursday). The team studied lung cancers from seven pa...

  • 肠道细菌,人造甜味剂与葡萄糖不耐症

    14-09-20 Artificial sweeteners -- promoted as aids to weight loss and diabetes prevention -- could actually hasten the development of glucose intolerance and metabolic disease, and they do so in a surprising way: by changing the composition and function of t...

  • 高血糖损坏血管可能是炎症导致

    14-09-16 Inflammation may be the reason high blood sugar levels damage blood vessels, raising the possibility that anti-inflammatory medications might someday be used to lower the risk of blood vessel disease in people with diabetes, according to a study pre...

  • 细胞中神秘的云雾状物质

    14-09-04 About 50 years ago, electron microscopy revealed the presence of tiny blob-like structures that form inside cells, move around and disappear. But scientists still don't know what they do -- even though these shifting cloud-like collections of protei...