ObjectiveTo clone the gene of mortality factor related gene 15(MRG15) and to investigate its expression in lens epithelium cell(LEC) of normal and age related cataractous eyes.

目的克隆死亡因子相关基因15（MRG15）并研究其在正常晶状体和年龄相关性白内障晶状体上皮细胞中的表达，比较二者的差异。

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Whale researchers use population models that factor a species' reproductive rate and its natural mortality to come up with an estimate of how many are likely dying.

MSN: Feds to reroute SF Bay ships to protect whales

"Thus, E-4 appears as a risk factor for both heart disease and Alzheimer's disease, two major causes of mortality and morbidity at advanced ages, " Francois Schachter and his colleagues at the Center for the Study of Human Polymorphisms, a genetic-research center in Paris, conclude in a report.

WSJ: A Gene Gives a Hint Of How Long a Person Might Hope to Live