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Prepare for human testing

机译:准备进行人工测试

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摘要

The problems of old age come as a package. More than 70% of people over 65 have two or more chronic conditions such as arthritis, diabetes, cancer, heart disease and stroke. Studies of diet, genes and drugs indicate that delaying one age-related disease probably staves off others. At least a dozen molecular pathways seem to set the pace of physiological ageing. Researchers have tweaked these pathways to give rodents long and healthy lives. Restricting calorie intake in mice or introducing mutations in nutrient-sensing pathways can extend lifespans by as much as 50%. And these 'Methuselah mice' are more likely than controls to die without any apparent diseases. Post-mortems reveal that tumours, heart problems, neurodegen-eration and metabolic disease are generally reduced or delayed in long-lived mice. In other words, extending lifespan also seems to increase 'healthspan, the time lived without chronic age-related conditions.
机译:老年问题是一揽子问题。 65岁以上的人群中有70%以上患有两种或更多种慢性疾病,例如关节炎,糖尿病,癌症,心脏病和中风。对饮食,基因和药物的研究表明,延缓一种与年龄有关的疾病可能会延缓其他疾病。似乎至少有十二种分子途径决定了生理老化的步伐。研究人员已经对这些途径进行了调整,以使啮齿动物长寿健康。限制小鼠的卡路里摄入或在营养物感应途径中引入突变可将寿命延长多达50%。这些“玛土撒拉小鼠”比对照组更容易死亡,而没有任何明显的疾病。验尸表明,长寿小鼠的肿瘤,心脏病,神经退行性疾病和代谢疾病通常会减少或延迟。换句话说,延长寿命似乎也增加了“健康寿命”,即没有与年龄相关的慢性疾病的生存时间。

著录项

  • 来源
    《Nature》 |2014年第7510期|405-406|共2页
  • 作者单位

    Washington University in St. Louis, Missouri, USA, and at Brescia University, Italy;

    Institute for Research on Aging in Novato, California, USA;

    Institute at the University of Southern California in Los Angeles, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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