在印度状细胞病患者中,HMOX1多态性 (rs2071746:A > T) 的患病率和影响
Hareram Pandey1, Kanwaljeet Singh2, Ravi Ranjan1
1Department of Hematology, All India Institute of Medical Sciences (AIIMS), New Delhi, India.
Journal of laboratory physicians
|October 2, 2023
概括
血红素酶-1 (HMOX1) rs2071746:A>T多态,特别是TT基因型,与印度状细胞病 (SCD) 患者的更高胎儿血红蛋白 (HbF) 水平有关. 这一发现表明HMOX1可能会改变HbF水平,从而可能减少SCD的严重程度.
科学领域:
- 遗传学 是一个遗传学.
- 血液学 血液学 血液学
- 分子生物学分子生物学
背景情况:
- 胎儿血红蛋白 (HbF) 对于减轻状细胞疾病 (SCD) 的发病率和死亡率至关重要.
- 遗传变异,如血红氧酶-1 (HMOX1) 多态,可能会影响HbF水平和SCD患者的疾病结果.
- 在印度SCD群体中,HMOX1 rs2071746:A>T多态性与可变的HbF水平有关.
研究的目的:
- 调查HMOX1 rs2071746:A>T基因多态性和胎儿血红蛋白 (HbF) 水平在患有状细胞疾病 (SCD) 的印度患者之间的关联.
- 评估这种多态性对SCD患者临床表现和疾病严重程度的影响.
主要方法:
- 使用基因特异性聚合酶链反应对HMOX1 (rs2071746:A>T) 基因多态的基因定型.
- 通过毛细血管区域电泳,量化血红蛋白 (Hb),HbA2,HbF和HbS水平.
- 招募了120例确诊的SCD病例 (HbSS和贝塔血症) 和50名健康对照.
主要成果:
- 与野生型 (AA) 相比,患有HMOX1rs2071746:A>T多态 (AT和TT基因型) 的患者表现出减少的贫血,较少的疼痛危机,以及较少的脊髓巨变和肝病巨变.
- 与野生型 (AA) 相比,在具有TT基因型 (HbSS:25.1±4.4%;Sβ:36.1±4.7%) 的患者中观察到明显更高的HbF水平 (p < 0.001).
- TT基因型与较低的黄和需要输血的频率有关.
结论:
- HMOX1 rs2071746:A>T多态的TT基因型与印度SCD患者的HbF水平升高显著相关 (p < 0.001).
- 这种多态性作为HbF水平的潜在修饰剂,影响状细胞疾病的临床结果.
- 这些发现突显了遗传因素在调节疾病严重程度方面的作用,并表明了SCD的潜在治疗点.
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