在水脑病的动物模型中,参与小便的诺拉德仁基通路 - - 尿路功能障碍的影响
Marta Louçano1,2,3,4, Ana Coelho1,2,3, Sílvia Sousa Chambel1,2,3
1Unit of Experimental Biology, Department of Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal.
Biomedicines
|January 23, 2024
概括
水脑通过改变大脑信号传递来破坏尿路控制. 这项对大鼠的研究显示,大脑活化下降,脊髓的诺阿德仁基信号增加,导致膀过度活跃.
科学领域:
- 神经科学是一个神经科学.
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
背景情况:
- 脑水症的特征是心室膨胀,往往导致尿路功能障碍.
- 控制排尿的神经通路,包括周周结节区域,如周周水管灰色 (PAG) 和角结节 (LC),都与此有关.
研究的目的:
- 为了研究尿路功能障碍的机制,考林诱导的水头症的小鼠模型.
- 为了探索从大脑到脊髓Onuf的核的noradrenergic控制的作用,在水头相关的尿路障碍.
主要方法:
- 采用了考林诱导的水头症小鼠模型,表现出尿路缺陷.
- 进行囊泡测量以评估膀收缩能力.
- 测量了Onuf核中的多巴胺β-基酶 (DBH) 水平和腹侧PAG (vlPAG) 中的c-Fos表达.
主要成果:
- 水脑性大鼠表现出膀收缩频率增加和最低压力降低.
- 在Onuf的核中观察到较高的DBH水平.
- 在水脑性大鼠的vlPAG中观察到c-Fos表达的降低.
结论:
- 水头发症的尿路功能障碍与改变的下降诺亚上腺素调制有关.
- 减少vlPAG激活可能导致LC控制的降低,导致对Onuf核和膀反射过活的夸张的诺阿德仁基信号.
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