EPISODE · Feb 4, 2026 · 17 MIN
675. 人类内在寿命的遗传力分析
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这项研究通过分析斯堪维亚双胞胎及美国长寿家族的数据,重新评估了人类寿命的遗传率。作者指出,以往研究估算的遗传率仅为20%至25%(甚至更低),主要是因为受到了外部死亡因素(如事故、感染)的干扰,这些因素掩盖了基因对生理衰老的真实贡献。通过建立数学模型剔除这些非生物性干扰后,研究发现人类内在寿命的遗传率实际上高达50%左右。这一新数值与人类大多数复杂生理特征的遗传水平相当,也与实验动物的寿命遗传研究相吻合。该结论有力地证明了基因对衰老机制具有显著影响,为未来寻找长寿相关的遗传变异提供了坚实的理论支撑。内容来源:https://www.science.org/doi/10.1126/science.adz1187
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675. 人类内在寿命的遗传力分析
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