目的探讨载脂蛋白B（apolipoprotein B，APOB）基因第29外显子3′端可变数目串联重复序列（variable number of tandem repeat, VNTR）多态性与维吾尔族自然长寿的关系。方法选择191名年龄90岁以上的健康个体为长寿组，另选53名年龄65...
详细信息
目的探讨载脂蛋白B（apolipoprotein B，APOB）基因第29外显子3′端可变数目串联重复序列（variable number of tandem repeat, VNTR）多态性与维吾尔族自然长寿的关系。方法选择191名年龄90岁以上的健康个体为长寿组，另选53名年龄65～70岁、性别、地域相匹配已自然死亡的正常个体为对照组。应用序列特异引物PCR和PCR-直接测序等技术对APOB进行分型，并测定等位基因HVE36和HVE48的核苷酸序列。结果在维吾尔族人群（长寿组191名，对照组53名）中，共发现14个等位基因。长寿组中HVE36、HVE42频率显著高于对照组（P〈0．05），并且HVE44、HVE46、HVE48、HVE58仅见于长寿组，而HVE26、HVE30、HVE34显著低于对照组（P〈0．05）。逐步逻辑回归分析显示，L等位基因和LL基因型与年龄呈正相关，而S等位基因和SS基因型与年龄呈负相关（P〈0．05）。核苷酸序列分析显示，每一种等位基因由富含AT的15bp长的基本单位或它们的变异体串联重复而构成。结论APOB等位基因S和基因型SS可能是维吾尔族自然长寿老人的危险因素，而等位基因L和基因型LL则是其保护因子。
As the completion of human genome project, application of the knowledge and techniques developed during thpast decade to the medical practice become more and more important and gain more and more attention. It is wort...
详细信息
As the completion of human genome project, application of the knowledge and techniques developed during thpast decade to the medical practice become more and more important and gain more and more attention. It is worthwhile to look back to the step prints of the development of medical genetics in China.1 The sprout of genetics in ChinaIt should be mentioned fromthe very beginning of the birth of the genetics in China to understand the historymedical genetics in China. In 1922, *** (Zhen CHEN) opened genetic courses in National Southeast Unversity after he returned from the ***’s lab at Columbia University. He used Goldfish as a model fogenetic study. The Chinese scholars started their work on human genetics by survey the frequency of ABO bloogroup in the Chinese. Their result was published in1918. This was the first data of gene frequency of Chinese population, followed by reports on the inherited disease in Chinese on the frequency of color blindness in 1937. I1948, T. C. HSU described the ability to fold up the tip of the tongue as a recessive trait (MIM189300)[1,2]*** (Ching Chun LI) wrote a book,Introduction to Population Genetics, which became a wellknown book ithe world and from which a whole generation of geneticists benefited.
暂无评论