对影响人类核酸切除修复的宿主因素的综合分析
Congying Zheng1,2,3, Sergey Shaposhnikov2,3, Andrew Collins2
1Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, 6200 Maastricht, The Netherlands.
Mutagenesis
|December 13, 2024
概括
核酸切除修复 (NER) 活性对于DNA修复至关重要,在女性和老年人中更高. 正常的BMI与更高的NER有关,而超重的男性显示的最低水平,表明潜在的生物标志物应用.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 生物标志物 生物标志物
背景情况:
- 核酸切除修复 (NER) 对于基因毒素对DNA损伤的修复至关重要.
- 作为生物标记物的DNA修复研究是有限的,需要聚合数据分析.
研究的目的:
- 组建和分析NER活动研究的聚合数据库.
- 为了将NER活动与宿主因素如性别,年龄,BMI和吸烟等相关联.
主要方法:
- 利用了来自5个实验室的738个人的数据库.
- 采用基于彗星的体外DNA修复试验来测量NER活动.
- 规范化了NER数据,并进行了与宿主因素的相关性分析.
主要成果:
- 与男性相比,在女性中观察到明显更高的NER活性 (P=.002).
- 增加的NER活性与老年相关,在70岁以上的女性中最明显 (P=.001).
- 正常BMI (<25 kg/m2) 的女性的NER值最高;超重的男性 (≥25 kg/m2) 的NER值最低.
- 吸烟没有独立的影响,但在分层后,在吸烟男性中观察到更高的NER (P=.017).
结论:
- 根据性别,年龄和BMI,NER活动有显著的变化.
- 不同的DNA修复能力对生物的影响需要进一步研究.
- DNA 修复测试显示,作为分子流行病学中的生物标志物,它有望将健康与疾病联系起来.
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