献血者之间的关联,组件修改,以及输血受体的合免疫
Han Yu1, Matthew S Karafin2, Christopher Anthony Tormey1
1Department of Laboratory Medicine, Yale University School of Medicine, New Haven, Connecticut, USA.
Transfusion
|January 17, 2025
概括
红血细胞 (RBC) 的非免疫化风险在不同 ABO 群体的捐献者或老年捐献者的输血中增加. 被辐射的红细胞和更长的储存时间可能会降低免疫接种风险.
科学领域:
- 输血医学 输血医学
- 免疫学 免疫学 免疫学
- 血液学 血液学 血液学
背景情况:
- 以前对红细胞 (RBC) 免疫接种的研究主要集中在接受因子上.
- 有限的研究已经研究了可修改的献血者和血液成分变量,这些变量会影响免疫接种.
研究的目的:
- 在输血接收者中识别与红细胞配免疫相关的供体和成分特征.
- 通过供体选择和组件管理,为减轻免疫风险的策略提供信息.
主要方法:
- 一项病例控制研究,利用接受者流行病学和捐赠者评估研究 (REDS-III) 的数据.
- 根据接收者诊断,匹配了2676例合免疫病例与10,160例对照病例.
- 分析了使用多变量条件后勤回归的捐赠者 (例如年龄,ABO组) 和组件 (例如辐射,储存时间) 变量.
主要成果:
- 接受来自不同 ABO 群体的捐赠者红细胞的输血接受者表现出明显更高的合免疫风险 (OR 1.60).
- 较老的供体年龄与红细胞配免疫的风险增加有关 (每年OR为1.01).
- 照射红血细胞与风险降低有关 (OR 0.52),而较长的红血细胞存储时间也显示出保护作用 (OR 0.99每天).
结论:
- 捐赠者ABO组,捐赠者年龄,红细胞辐射和储存时间是与红细胞配免疫相关的重要因素.
- 这些发现突出了在献血和组件处理中潜在的可修改变量,这可能会减少免疫接种.
- 建议进行进一步的机制研究,以阐明观察到的关联.
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