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首页> 外文期刊>The journals of gerontology.Series A. Biological sciences and medical sciences >Accumulation of cells with short telomeres is associated with impaired zinc homeostasis and inflammation in old hypertensive participants
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Accumulation of cells with short telomeres is associated with impaired zinc homeostasis and inflammation in old hypertensive participants

机译:端粒短的细胞堆积与老年高血压参与者的锌稳态和炎症受损有关

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Critical shortening of telomeres, likely associated with a considerable increase of senescent cells, can be observed in PBMC of individuals aged 80 and older. We investigated the relationship between critical telomere shortening and zinc status in healthy or hypertensive participants with or without cardiovascular disease in old and very old participants. Telomere shortening and accumulation of cells with short telomeres (percent of cells with short telomeres) in advancing age was evident in patients and healthy controls, but exacerbated in those patients aged 80 and older. Moreover, in very old patients, the accumulation of % CST may impair intracellular zinc homeostasis and metallothioneins expression, which itself is linked to an increased number of inflammatory agents, thereby suggesting the existence of a possible causal relationship between % CST and zinc homeostasis. The determination of % CST could be a more reliable means than the simple measure of telomere length as fundamental parameter in ageing to determine whether individuals are still able to respond to stress.
机译:在80岁以上的人的PBMC中可以观察到端粒的严重缩短,这可能与衰老细胞的大量增加有关。我们调查了老年和非常老年参与者中有或没有心血管疾病的健康或高血压参与者中关键端粒缩短与锌状态之间的关系。在患者和健康对照组中,端粒缩短和端粒较短的细胞的积累(端粒较短的细胞的百分比)在患者和健康对照组中很明显,但在80岁以上的患者中加剧。此外,在非常老的患者中,%CST的积累可能会损害细胞内锌稳态和金属硫蛋白的表达,而后者本身与越来越多的炎性药物有关,从而表明%CST与锌稳态之间可能存在因果关系。确定CST百分比可能比将端粒长度作为衰老的基本参数的简单方法更可靠,从而确定个人是否仍然能够应对压力。

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