摘要:将Avp-iCre转基因首建小鼠传到C57BL/6背景。通过与纯合ROSA26 Cre报告小鼠交配来检测iCre(improved Cre,改进的Cre重组酶)的表达,在子代中研究β-gal(beta-galactosidase,β-半乳糖苷酶)与AVP( arginine vasopressin,精氨酸血管加压素)的共定位关系。利用ClockLab软件记录分析Avp-iCre小鼠跑轮运行行为节律的完整性。实验结果显示β-gal和AVP在SCN( suprachiasmatic nucleus,视交叉上核)的表达存在明显共定位;Avp-iCre小鼠具备正常行为节律,其周期为23.65±0.14 h(Mean ±SD),表明该Avp-iCre转基因小鼠可用于近日节律研究。
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