共查询到20条相似文献,搜索用时 80 毫秒
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衰老机制的研究进展及应用 总被引:3,自引:0,他引:3
衰老机制与抗衰老研究一直是生命科学研究的热门话题,人体衰老的原因是多方面的,衰老的机制也极为复杂。本文将综述衰老机制的几大重点学说:自由基一线粒体衰老学说、褪黑素一松果腺衰老学说、羰基毒化衰老学说、端粒学说、基因衰老学说等的研究进展及应用。 相似文献
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衰老机理的分子生物学 总被引:6,自引:0,他引:6
衰老机理的分子生物学张宗玉,童坦君(北京医科大学生化与分子生物学系,北京100083)子女的寿命常与双亲的寿命有关,各种动物的平均寿命和最高寿命都相当稳定,由此看来物种的寿命主要决定于遗传物质。衰老过程可能与分化、发育过程相似,系由早已安排好的遗传程... 相似文献
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衰老免疫学及其基因调控 总被引:6,自引:0,他引:6
衰老免疫学及其基因调控中国老年学学会抗衰老科学技术委员会(中国老年学学会抗衰老科学技术委员会,北京100091)Walford教授在60年代提出衰老的免疫学理论,认为免疫系统从根本上参与正常脊椎动物的老化,是老化过程中的调节装置,生物体依赖于免疫系统... 相似文献
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衰老通常指生物发育成熟后,在正常情况下随着年龄的增加,机能减退,内环境稳定性下降,结构中心组分退行性变化,趋向死亡的不可逆现象。由于衰老和死亡是不可抗拒的,因此找到延缓衰老、延年益寿的办法成为人类的强烈愿望。延缓衰老和延长寿命是两个紧密相连的概念,衰老一般指体力下降、行动不便、步履艰难、记忆减退、思维紊乱等表象而言;而寿命多指年龄、寿限。 相似文献
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After an introduction on the development of biological ageing research in the Netherlands during the past decades, 606 papers on aging published by Dutch institutes in the period 1991-2000, collected from PubMed, were analysed for their relevance to research into biological ageing. For the period 1996-2000, the total number of research papers on biological ageing amounted to 142, which accounts for 23% of all publications on ageing in that period. The number of publications per year did not change.On the basis of these papers and additional information provided by research groups a comprehensive overview of biological ageing research in the Netherlands is presented, together with an extensive literature list. Ageing of the central nervous system (CNS), of the endocrinological system and of the cardiovascular system are the topics most studied. It is concluded that general biological ageing research has not increased in the Netherlands over the last ten years, and that the infrastructure for basic biological ageing research in the Netherlands is weak. 相似文献
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Expanding the frontiers of ageing research 总被引:1,自引:1,他引:0
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贾焕光 《胃肠病学和肝病学杂志》2002,11(4):291-293
与其他临床实验研究一样 ,功能性胃肠病 (func tionalgastrointestinaldisorder,FGID)临床试验是一个复杂的工程 ,涉及很多内容和过程 ,如确定切实可行的试验目标、选择合理的试验方法、招募有代表性的受试者、确立试验结果的评价指标 ,选用已充分验证的评价工具 (instrument)、决定最佳的治疗时间和随访期限、计算试验所需的样本量 ,规定数据处理原则、试验方案的实施 ,记录受试者所有相关数据 ,随时总结试验进程 ,统计分析结果并作出解释 ,同时还要考察是否严格执行临床试验研究的伦理原… 相似文献
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Anisimov VN 《Experimental gerontology》2001,36(7):935-945
An analysis of the current situation in Russian biogerontology is presented in this paper. There are several active groups in Russia pursuing research in biogerontology capable of producing results publishable in international journals of high repute. The main directions of research on the biology of ageing in this country are prevention of premature ageing, the role of free radicals and of the endocrine system (in particular, the pineal gland) in the mechanisms of ageing, carcinogenesis and ageing and population genetics of ageing. Several groups are conducting fruitful research on the theoretical aspects of the biology of ageing. Only a few teams are focusing on molecular biology and the genetics of ageing. In the past few years, many more researchers in fields highly relevant to gerontology have been attracted by issues in gerontological research. In Russia, the most basic problem facing researchers in biogerontology and other relevant areas is an almost complete absence of support from the State and other decision makers. 相似文献
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