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6-尼特罗多巴胺是大鼠精液囊泡收缩性的内源调解剂

Vivian Fuguhara¹, Gabriel Augusto Oliveira Stocco¹, José Britto-Júnior¹

¹Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil.

|January 9, 2025

概括

老鼠的精液囊释放6-尼特罗多巴胺 (6-ND),它调节组织收缩性. 这种从上皮质衍生的6-尼特罗多巴胺在调节精液囊功能方面发挥着关键作用.

科学领域:

药理学药理学是指药理学的学科.
身体生理学身体生理学
生物化学生物化学

背景情况:

6-尼特罗多巴胺 (6-ND) 是大鼠体内收缩能力的内源调节剂.
精液囊在6-ND释放中的作用及其调节效应尚未得到充分理解.

研究的目的:

为了确定老鼠分离的精液囊泡 (RISV) 是否释放6-ND.
阐明从RISV中释放6-ND的机制.
研究6-ND对RISV收缩性的调节作用.

主要方法:

在RISV中使用LC-MS/MS.分析catecholamine度 (6-ND,多巴胺,上腺素,上腺素) 的分析.
以L-NAME,L-氨酸,TTX,GKT137831和H2O2.2进行表皮切除和化后的6-ND释放的评估.
使用同度力传感器来评估RISV收缩性的功能研究.
免疫组织化学和FISH来确定氨酸氧酶和eNOS的表达.

主要成果:

6-ND是从RISV释放出来的占主导地位的甲醇胺.
长皮层的去除显著降低了6-ND,上腺素和多巴胺的释放.
L-NAME治疗减少了6-ND的释放,部分通过L-阿基尼因恢复.
GKT137831和H2O2增加了6-ND的释放,而TTX没有影响.
由其他类甲醇胺诱导的6 - ND强化收缩,这种效应被TTX抑制.
在上皮细胞中发现了氨酸氧酶,在上皮细胞和内皮细胞中发现了eNOS.

结论:

大鼠分离的精液囊泡释放6-ND,主要来自上皮细胞.
6-ND的释放涉及氧化合成酶通路,并受到氧化应激的影响.
从上皮质衍生的6-ND在老鼠精液囊中的收缩性中起着显著的调节作用.

关键词:

在S100中,S100就是S100.卡尔雷丁宁是一种卡尔雷丁宁.在 eNOS eNOS 中使用.器官浴是指一个器官浴.有协同作用的协同作用.双联质谱质量测量技术

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