膀壁是通过在雌性Wistar大鼠中进行波浪式抵抗训练来重塑的
Amyr Braverman1, Nuha A Dsouki1, Juliana M Veridiano1
1Department of Morphology and Physiology, Centro Universitario FMABC, Santo Andre, SP, Brazil.
PeerJ
|April 4, 2025
概括
波动性阻力训练 (URT) 在雌性大鼠中导致尿囊重塑. 这种高影响力的运动会改变结缔组织和蛋白质水平,可能会影响膀功能.
科学领域:
- 生理学 生理学 生理学
- 历史学 历史学 历史学
- 运动科学 运动科学 运动科学
背景情况:
- 尿路压力失禁在女性中很常见,与增加腹内压力的高冲击运动有关.
- 盆地肌肉衰弱是这种活动的一个已知的后果.
- 波动性阻力训练 (URT) 对尿道膀 (UB) 组织重塑的影响仍未得到研究.
研究的目的:
- 在大鼠模型中研究URT对尿道膀壁的组织形态学影响.
- 在URT之后分析原,弹性纤维,金属蛋白酶 (MMPs) 和金属蛋白酶组织抑制剂 (TIMPs) 的变化.
主要方法:
- 雌性Wistar大鼠被分为静止 (SED) 和URT组.
- URT涉及一个梯子登协议与增加负载.
- 采集了尿囊以进行组织学 (HE,MT,PH,RF) 和免疫组织化学 (MMP1,TIMP1) 分析.
主要成果:
- 泌尿突治疗增加了尿膜厚度和自身膜中的原度.
- 在URT大鼠的UB壁中观察到I和III类型的原蛋白和弹性纤维的增加.
- 在URT集团的UB墙上发现了MMP1和TIMP1之间的不平衡.
结论:
- 尿路治疗诱导尿膀壁的显著重塑.
- 这种重塑涉及连接组织组成和细胞外矩阵蛋白的改变.
- 观察到的MMP1/TIMP1失衡表明了URT诱导的UB变化的潜在机制.
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