揭开复杂的分子相互作用和高血压诱导的病中的血管适应性变化
Lyubomir Gaydarski1, Iva N Dimitrova2, Stancho Stanchev1
1Department of Anatomy, Histology and Embryology, Medical University of Sofia, 1431 Sofia, Bulgaria.
Biomedicines
|August 29, 2024
概括
动脉高血压会改变脏的血管化. 这项研究发现阿佩林受体和nNOS表达的增加,以及VEGF的减少,与高血压大鼠的毛细血管密度降低相关.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 心血管生物学 心血管生物学
- 分子医学是分子医学.
背景情况:
- 动脉高血压 (AH) 破坏血管生成,影响功能,导致高血压引起的损伤.
- 毛细血管密度 (CD) 的变化表明AH中脏血管化的改变.
- 在这个过程中,阿佩林受体 (APLNR),神经元氧化合成酶 (nNOS) 和血管内皮生长因子 (VEGF) 的作用需要进一步阐明.
研究的目的:
- 在AH不同阶段的自发高血压大鼠 (SHRs) 的脏中研究APLNR,nNOS和VEGF的表达和局部化.
- 评估AH进展对毛细血管密度的影响.
- 在高血压的背景下确定APLNR,nNOS,VEGF表达和CD之间的相关性.
主要方法:
- 使用自发高血压大鼠 (SHRs) 在6个月和12个月的年龄,与年龄相匹配的正常血压对照相比.
- 用标准化协议准备脏组织样本.
- 进行了免疫组织化学和定量分析,以评估APLNR,nNOS和VEGF表达和CD.
主要成果:
- 在管状上皮细胞和质内皮细胞中发现APLNR,在较老的SHR中表达增加.
- nNOS和VEGF显示了类似的局部化模式.
- 随着AH的进展,APLNR和nNOS表达增加,而VEGF水平下降.
- 与对照组相比,毛细血管密度在年轻的SHR中降低,在老的SHR中显著降低.
- 统计分析证实了不同年龄段分子表达和与CD相关的显著差异.
结论:
- 高血压的进展与老鼠脏中APLNR,nNOS和VEGF的表达变化有关.
- 这些分子变化与毛细血管密度的降低相关,有助于高血压引起的损伤.
- 针对这些途径可能为管理高血压病提供治疗策略.
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