三种突变GRK4转基因小鼠的血压动态分析

被引:1
作者
鲍丹
董伟
刘宁
张旭
吕丹
张连峰
机构
[1] 中国医学科学院医学实验动物研究所,北京协和医学院比较医学中心,卫生部人类疾病比较医学重点实验室,国家中医药管理局人类疾病动物模型三级实验室
关键词
GRK4γ; 突变; 转基因; 高血压; 盐敏感; 小鼠;
D O I
暂无
中图分类号
R544.1 [高血压];
学科分类号
100201 [内科学];
摘要
目的建立GRK4γ野生型和三种GRK4γ基因突变的转基因小鼠,并对其血压进行动态分析,建立高血压模型。方法把人GRK4γ野生型、GRK4γR 65L、GRK4γA142V和GRK4γA486V三个突变基因分别插入鸡β-肌动蛋白启动子下游,构建转基因表达载体,显微注射法建立C57BL/6J GRK4野生型和突变的转基因小鼠,PCR鉴定转基因小鼠基因型。采用Western Blot鉴定GRK4在心脏、肾脏和肾上腺中的表达筛选高表达转基因品系。用无创血压测量仪分析转基因小鼠动态血压。结果建立了在心脏、肾脏和肾上腺均高表达GRK4基因的转基因小鼠。转基因表达人GRK4γ野生型和GRK4γR 65L突变的小鼠血压正常,转基因表达人GRK4γA142V突变的小鼠在正常的钠盐摄入情况下即可发生高血压,而转基因表达人GRK4γA486V突变的小鼠只有在增加钠盐摄入情况下才发生高血压。结论 GRK4γA142V转基因小鼠可作为自发性高血压动物模型,GRK4γA486V转基因小鼠可作为盐敏感性高血压动物模型。
引用
收藏
页码:25 / 30
页数:6
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