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DOI: 10.3791/66545-v
Noelle A. Martin*1, Lauren W. Y. McLester-Davis*2,3,4, Trevor R. Roy1, Madeline G. Magruder5, Waylon J. Hastings1, Stacy S. Drury6
1School of Medicine,Tulane University, 2Native American Center for Health Professions,University of Wisconsin-Madison, 3Department of Medicine,University of Wisconsin-Madison, 4Department of Biochemistry,University of Wisconsin-Madison, 5School of Science and Engineering,Tulane University, 6Department of Psychiatry and Behavioral Sciences,Boston Children’s Hospital
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在这里,我们提出了一种使用单色多重定量聚合酶链反应 (MMqPCR) 测定法测量相对端粒长度 (TL) 的方案。MMqPCR 检测是一种可重复、高效且具有成本效益的方法,用于在基于人群的研究中测量人类 DNA 中的 TL。
端粒是染色体末端的重复核蛋白区域,每次细胞分裂时都会缩短,导致整个生命周期中平均端粒长度减少。我们的实验室通过测量端粒长度和基于人群的研究来研究创伤和逆境对细胞衰老的长期和代际影响。对端粒生物学的兴趣正在扩展到测量平均端粒长度之外。
正在开发新方法来评估染色体特异性端粒长度,并研究健康结果与端粒生物学其他方面(如端粒相关蛋白和 DNA 损伤)之间的联系。由实验室 PI Stacy Drury 博士领导的跨学科端粒研究网络致力于通过支持国际合作研究来提高端粒测量的严谨性和可重复性,这些研究记录了分析前因素对端粒测定精度的影响,以及建立使用 QPCR 生成的端粒长度测量值的报告指南。MMQPCR 的精度提高,可以更精细地分析早期逆境和生命历程环境暴露对细胞衰老的影响,例如,通过识别敏感期,在此期间发生的暴露对以后的生活健康结果产生更深远的影响。
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