在艾滋病毒感染者中,CD4+细胞数,CD4/CD8比率和脆弱性骨折之间存在关联
Bo Liu1,2, Qiang Zhang1,2
1Department of Orthopaedics, Beijing Ditan Hospital, Capital Medical University.
AIDS (London, England)
|December 18, 2024
概括
艾滋病毒感染者 (PWH) 中较低的CD4+T细胞计数和CD4/CD8比率与较高的脆弱性骨折风险有关. 免疫功能对于PWH的骨健康至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 骨的新陈代谢 骨的新陈代谢
- 艾滋病毒/艾滋病研究研究
背景情况:
- 艾滋病毒感染者 (PWH) 通常具有免疫系统受损,其特征是减少CD4+T细胞数量和改变CD4/CD8比率.
- 这些免疫标记物对PWH脆弱性骨折风险的影响尚不清楚.
- 这项研究旨在探索PWH免疫状况与骨折风险之间的关联.
研究的目的:
- 调查CD4+T细胞计数,CD4/CD8比率和中国艾滋病毒感染者的脆弱性骨折发生率之间的关系.
- 确定与骨折风险增加相关的CD4+T细胞计数和CD4/CD8比率的特定值.
- 检查免疫标记物与骨折风险之间的潜在非线性关联.
主要方法:
- 来自北京迪坦医院的1107 PWH的回顾性队列研究 (2011-2023年).
- 数据收集包括人口统计,临床状态,骨矿物质密度和脆弱性骨折.
- 多变量考克斯回归和受限立方线 (RCS) 用于分析免疫标记物和骨折风险之间的关联.
主要成果:
- 较低的CD4+T细胞计数 (<200细胞/μl) 与2.78倍的骨折风险增加有关.
- 较低的CD4/CD8比率 (<0.5) 与骨折风险增加3.43倍有关.
- RCS分析显示了一个曲线性关联,在CD4/CD8比率低于1.16.6的情况下观察到高骨折风险.
结论:
- 减少的CD4+T细胞数量和CD4/CD8比率是艾滋病毒感染者的脆弱性骨折的重要危险因素.
- 免疫状况在维持PWH骨健康方面发挥着关键作用.
- 监测免疫功能对于评估和减轻这种人群中骨折风险至关重要.
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