识别艾滋病毒感染者肺功能下降的代谢生物标志物
Tyler C Lovelace1,2, Stacy L Gelhaus3,4, Barbara Methé5,6
1Department of Computational & Systems Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Journal of acquired immune deficiency syndromes (1999)
|April 29, 2025
概括
支气管洗液 (BALF) 的代谢物分析可以识别艾滋病毒感染者 (PWH) 患有加速慢性阻塞性肺病 (COPD) 进展的风险. 这种方法有助于早期检测和管理PWH的肺功能下降.
科学领域:
- 肺部病理学 肺部病理学
- 代谢学 代谢学 代谢学
- 传染病研究 传染病研究
背景情况:
- 艾滋病毒感染者的肺部并发症 (PWH) 正在转向慢性疾病,如COPD.
- 艾滋病毒是COPD的独立风险因素,导致早期发病和肺功能下降的速度更快.
- 鉴定患有加速肺功能衰退的高风险个体至关重要,因为它与死亡率增加有关.
研究的目的:
- 确定与艾滋病毒感染成人的纵向肺功能下降相关的基线临床和代谢学因素.
- 评估支气管洗液 (BALF) 和血清代谢组对加速肺衰退的预测能力.
主要方法:
- 针对BALF的代谢物和来自59名艾滋病毒成年人的血清样本的向性代谢物分析,使用液体染色学高分辨率质谱法.
- 纵向肺功能测试在平均2.95年内进行.
- 预测建模和特征选择算法被用来确定肺功能下降的关键预测因素.
主要成果:
- 与血清代谢相比,BALF代谢组在预测肺功能下降方面表现出更高的一致性.
- 在BALF中增加的肉丁和减少的酸盐,以及低血清酸盐,被确定为加速衰退的显著预测因素.
- 概率图形模型证实了这些代谢物和肺功能下降之间的直接关系.
结论:
- 基线代谢概况分析,特别是使用BALF,可以有效地识别患有加速肺功能下降风险的PWH.
- 关键的代谢途径,包括葡萄糖氧化,脂肪酸代谢和氨基酸代谢,都与观察到的肺功能变化有关.
- 这项研究突出了代谢学在PWH早期风险分层和有针对性的干预方面的潜力.
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