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转激素度增加与生活在高海拔地区的人的血栓形成不相关
Ricardo Amaru1,2, Josef Prchal3, Tomas Ganz4
1Cell Biology Unit, School of Medicine, San Andres University, La Paz, Bolivia.
Journal of hematology
|February 12, 2025
概括
高海拔群体表现出对缺氧的遗传适应. 这项研究发现,艾玛拉高地人的更高的转激素水平与血栓形成史下降的趋势有关,这与之前的一些发现相反.
科学领域:
- 人类适应极端环境.
- 缺氧的生理学 缺氧的生理学
- 对高海拔地区的遗传适应.
背景情况:
- 在4000米的艾玛拉高地表现出对缺氧的遗传适应,包括对调节转移蛋白的EGLN1的基因适应.
- 转激素水平随着缺氧和缺铁而上升,但其与高海拔血栓形成的关联仍在争论中.
研究的目的:
- 研究艾玛拉人生活在高海拔地区的血清转激素度和血栓形成史之间的关系.
- 为了确定升高的转激素是否与该人群中血栓形成风险的增加或减少有关.
主要方法:
- 在286名艾玛拉患者 (149名患有红细胞瘤,137名患有贫血) 的血清转激素和血栓形成史的回顾性分析,居住在3,650 - 4,150m.
- 患者被评估是否缺铁,红细胞瘤,贫血和血栓形成史.
主要成果:
- 红细胞瘤 (339 mg/dL) 与贫血 (310 mg/dL) 患者,铁缺乏症 (367 mg/dL) 与铁补充 (312 mg/dL) 患者的转林水平较高.
- 血栓形成史发生在16%的缺铁人群和7%的补铁人群中 (P=0.017).
- 多变量分析显示,有血栓形成史的患者与没有血栓形成史 (324 mg/dL) (P=0.018) 患者的转激素含量较低 (277 mg/dL),表明转激素含量较高的血栓形成减少的趋势.
结论:
- 在艾玛拉高原人中,增加的转激素水平与血栓形成风险的增加无关.
- 在这种低氧适应人群中,观察到降低血栓形成史的趋势,转林水平更高.
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