用选择性雄激素受体调节剂 (RAD140) 治疗与更好的心脏功能有关,男性特异性的效果由中白素-6分级
Stefan S Heinze1,2,3, David G Sapp4, Alexander P Young5
1Department of Pharmacology, Dalhousie University, 5850 College Street, PO Box 15000, Halifax, NS, B3H 4R2, Canada. Stefan.Heinze@Dal.ca.
GeroScience
|February 17, 2026
概括
选择性雄激素受体调节剂 (SARMs),如RAD140,在老年雄性小鼠中比雌性小鼠更能改善心脏功能. 干白素-6水平与心脏应变相关,这表明雄激素受体,心脏功能和炎症之间存在联系.
科学领域:
- 心血管生理学心血管生理学
- 内分泌学 在内分泌学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 低丸激素与心脏功能不佳和炎症有关.
- 选择性雄激素受体调节剂 (SARMs) 模仿的作用.
- SARM对心脏结构,功能和炎症的影响尚不清楚.
研究的目的:
- 研究SARM RAD140对老年雄性和雌性小鼠心脏功能和结构的影响.
- 探索系统性炎症标志物与RAD140.0诱导的心脏变化之间的关系.
主要方法:
- 年长的雄性和雌性小鼠接受RAD140 (5毫克/公斤/天) 或安慰剂6周.
- 心声检查评估了左心室 (LV) 的结构和功能.
- 分析了血清细胞因子水平和LV基因表达.
主要成果:
- 在两性中,RAD140增加了射出分数,中风体积和心脏输出.
- 与女性相比,男性表现出心肌张力增强和异体体松.
- 在男性中,更高的互白素-6水平与更糟糕的全球环形菌株相关.
结论:
- 在老年雄性小鼠中,RAD140可能会改善心脏功能,在雌性小鼠中影响较小.
- 雄激素受体似乎连接心脏功能和炎症标志物,特别是在男性中.
- 没有观察到显著的心脏结构变化或心脏基因表达的差异.
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