FTO基因多态与肥胖及其相关表型的遗传关联:一个病例对照研究
Tanmayi Sharma1, Badaruddoza Badaruddoza1
1Department of Human Genetics, Guru Nanak Dev University, Amritsar-143 005, Punjab, India.
Journal of cardiovascular and thoracic research
|September 10, 2024
概括
两个FTO基因多态,30685T/G和-23525T/A,显著增加印度旁遮普邦的肥胖风险. 这些遗传变异与更高的身体质量指数和其他与肥胖有关的健康标志物有关.
科学领域:
- 遗传学和基因组学 遗传学和基因组学
- 人体生理学 人体生理学
- 人口健康 人口健康
背景情况:
- FTO基因是非血红素Fe (II) 和2氧格酸盐依赖的二氧化原酶超级家族的一部分,与肥胖风险有关.
- 之前对FTO基因多态和肥胖的研究表明,在不同的人群中,结果不一致.
- 在FTO基因内的内部多态变异对其在肥胖易感性中的潜在作用特别感兴趣.
研究的目的:
- 为了研究两个特定的FTO内部多态,30685T/G (rs17817449) 和-23525T/A (rs9939609) 和肥胖风险之间的关联.
- 确定这些FTO变体对旁遮普人群中与肥胖相关的人类测量和生物化学参数的影响.
主要方法:
- 671名18岁及以上的参与者 (333名肥胖者,338名非肥胖者) 的基因定型使用PCR-RFLP.
- 桑格测序用于基因定型约50%的样本,以确认多态态状态.
- 使用后勤回归分析来评估FTO多态和肥胖风险之间的关联.
主要成果:
- 两种FTO 30685T/G和-23525T/A多态都与肥胖风险增加有显著的关联.
- 对30685T/G的TT基因型赋予了2.30的几率比 (OR),而对-23525T/A的TT则显示了2.78的OR.
- TA单元型 (30685; -23525) 显示肥胖风险增加了四倍 (P=0.0001),与BMI,腰围和血压有显著关联.
结论:
- FTO基因多态 30685T/G (rs17817449) 和 -23525T/A (rs9939609) 在确定肥胖脆弱性方面发挥着重要作用.
- 这些发现强调了特定FTO内基变异在研究印度人口中对肥胖的遗传倾向的重要性.
- 鉴定出的多态可能作为潜在的遗传标记,用于评估肥胖风险.
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