德克萨米他预防通过修改外围血液单核细胞炎症转录组来保护人免受急性高空疾病
Rahul Kumar1,2, Neha Chanana3, Kavita Sharma3
1Department of Medicine, University of California San Francisco, San Francisco, CA, U.S.A.
Bioscience reports
|November 17, 2023
概括
高海拔暴露会改变血液细胞中的基因表达,特别是免疫路径. 德甲 (DEX) 预防可以通过抑制炎症和改变免疫细胞群来预防高海拔疾病.
科学领域:
- *人类生理学和分子生物学.
- *高空医学和药理学.
背景情况:
- *急性高空暴露 (HA) 可以引发各种生理病理.
- * 甲 (DEX) 用于预防HA疾病,但其确切的机制尚不清楚.
研究的目的:
- * 调查德克萨米他 (DEX) 预防高海拔 (HA) 疾病的分子机制.
- * 在急性HA暴露和DEX治疗后分析周围血液单核细胞 (PBMC) 转录组的变化.
主要方法:
- *从16名健康受试者在低海拔 (LA) 和在高海拔 (3500米) 3天后对PBMC的转录组分析.
- * 接受口服DEX预防的受试者与安慰剂组 (未蒙蔽) 之间的比较.
- * PBMC亚群的主要成分分析和解卷分析.
主要成果:
- *HA暴露显著改变了基因表达,特别是在炎症和细胞分裂途径中.
- *DEX预防调节了较少的基因,主要是在免疫路径内,与HA诱导的变化不同.
- * 分解分析表明B细胞,T细胞,树突细胞和髓状细胞群体在HA和DEX暴露时发生变化.
结论:
- *急性HA旅行和DEX预防诱导PBMC转录组的显著变化.
- *DEX可能通过抑制炎症反应和修改白细胞分布来保护HA疾病.
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