Scientists seeming to cure and prevent insulin-dependent diabetes have discovered what goes wrong in the bodies of a special breed of mice prone to the affliction and, using that knowledge, have developed a way to prevent the disease in the Roberts.
Because mouse diabetes is almost identical to human type 1 diabetes (also called insulin-dependent or juvenile-onset diabetes)，the researchers say they may be ready to test their techniques on humans in five years and that a treatment for patients in the early stages of the disease could be ready to test in two years.
In findings—published in last week’s issue of Nature—were obtained by two research groups working independently. One was led by Daniel L. Kaufaman, a molecular biologist at the University of California at Los Angeles, and the other by Hugh O. Mcdevit of Stanford University.
“There’s great excitement at the prospects for this research” said James Gavin, a diabetes specialist and president of the American Diabetes Association. “These are studies you have to call convincing. They are clearly likely to have human applications.”
Type 1 diabetes has long been known to be an autoimmune disease—an ailment in which the immune system, instead of defending the body against invading microbes, mistakenly attacks part of the body. In diabetes, it kills the special cells in the pancreas that make insulin. Without insulin, cells cannot take in sugar. The body is deprived of sugar energy and its accumulation in the bloodstream damages nerves and other issues. The potential new treatments would either stop the immune system from making a mistake or suppress an existing erroneous response.
With what can cells take in sugar?
最后一段第二句话“In diabetes, it kills the special cells in the pancreas that make insulin Without insulin, cells cannot take in sugar.”由此可见胰岛素可以吸收糖分。故选A。
女性，61岁，3h前上楼时突发胸骨后疼痛，伴出汗，不能缓解，既往无冠心病病史，排除心梗发生的实验室检查首选的标志物是
血浆凝固酶试验阳性的是
关于肠球菌，错误的是
检查高压灭菌器的灭菌效果时用的生物指标是
不宜冷藏的细菌是
下列哪项试验不是凝集试验
关于临床血清酶活力测定的下列叙述哪项是错误的
影响血沉的因素不包括
摄入未熟透的海产品后引起急性胃肠炎，表现为血水样便，其病原菌可能是
抗Sm抗体与下列哪种疾病最相关
