151. 氯氮平对斑马鱼心脏发育的影响及机制研究.
- Author
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黄凯玥, 张 伟, 朱玉婕, 孙玉洁1,, and 袁 栎
- Abstract
Objective:To explore the potential damage effects and related mechanisms of clozapine (CLP) on the heart development of zebrafish. Method:12.5 μmol/L CLP (L ⁃CLP) and 25.0 μmol/L CLP (H ⁃CLP) were used to culture zebrafish embryos for 72 hours, respectively. The heart morphology,heart rate,and the distance between venous sinus and arterial bulb (SV ⁃BA) were observed under microscope;The expression of cardiac development⁃related genes NKX2.5,Hand2 and Cmlc2 were detected by fluorescence quantitative PCR;In addition,after 24 hours of culture,the endoplasmic reticulum inhibitor 4⁃phenylbutyric acid (4⁃PBA) or dopamine D2 receptor inhibitor bromocriptine (BRC) were added to the H ⁃ CLP group for 48 hours. Then,we counted the cardiac function indicators,and detected the expression of endoplasmic reticulum stress genes (Chop、Bip) and apoptosis ⁃ related genes (Caspase3,Bax/Bcl2) . Results: CLP induced damages of cardiac structure and function in a dose⁃dependent manner,induced the expression of Chop and Bip,and further increased the expression of Caspase3 and Bax/Bcl2. 4⁃PBA and BRC significantly alleviated CLP⁃induced cardiac injury and decreased the expression levels of Chop、Bip、Caspase ⁃3 and Bax/Bcl2. Conclusion:CLP can damage the heart development of zebrafish,and the mechanism may be related to inhibiting dopamine D2 receptor and stimulating endoplasmic reticulum stress. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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