4-苯基丁酸对高脂饮食诱导大鼠非酒精性脂肪肝病的治疗作用

被引:6
作者
徐万鹏
梁英琴
王红园
韦秀桂
孙雪梅
张华
周焕芳
林兴
林军
机构
[1] 广西医科大学药学院
关键词
4-苯基丁酸; 高脂饮食; 大鼠; 非酒精性脂肪肝; 脂代谢紊乱; 氧化应激; 内质网应激;
D O I
10.16190/j.cnki.45-1211/r.2020.09.008
中图分类号
R575.5 [肝代谢障碍];
学科分类号
100201 [内科学];
摘要
目的:研究内质网应激(ERS)抑制剂4-苯基丁酸(4-PBA)对高脂饮食所致非酒精性脂肪肝病(NAFLD)大鼠的保护作用。方法:SD大鼠随机分为正常组、模型组、4-PBA组,除正常组外,其余大鼠给予高脂饮食8周复制NAFLD模型,采取4-PBA(350 mg/kg)进行灌胃,连续干预4周。计算大鼠体重变化,肝、肾、脾指数;测定血清中谷丙转氨酶(ALT)、谷草转氨酶(AST)、胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、白蛋白(ALB)、球蛋白(GLB)、总蛋白(TP)、白/球比(A/G);测定肝脏中超氧化物歧化酶(SOD)、谷胱甘肽(GSH)、谷胱甘肽过氧化物酶(GSH-Px)活性和丙二醛(MDA)含量;饱和油红O染色观察大鼠肝脏脂滴沉积;免疫组织化学法检测肝脏葡萄糖调节蛋白78(GRP78)表达水平。结果:与模型组比较,4-PBA组大鼠体重增加量、肝指数明显降低(P<0.05);血清中ALT、AST、GLB、TP、TC、TG、LDLC水平显著下降,HDL-C、A/G显著上升(P<0.05);肝脏中SOD、GSH、GSH-Px活性显著升高,MDA含量显著降低(P<0.05);油红O染色证实,肝细胞脂滴沉积面积显著减少(P<0.05);免疫组化表明,肝脏中GRP78表达水平显著降低(P<0.05)。结论:4-PBA对高脂饮食诱导NAFLD大鼠有一定的治疗作用,可能与改善氧化应激、调节脂质代谢紊乱及减轻ERS有关。
引用
收藏
页码:1630 / 1635
页数:6
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4-苯基丁酸对高脂饮食诱导大鼠非酒精性脂肪肝病的治疗作用 [J].
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梁英琴 ;
王红园 ;
韦秀桂 ;
孙雪梅 ;
张华 ;
周焕芳 ;
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