中国临床药理学杂志
中國臨床藥理學雜誌
중국림상약이학잡지
The Chinese Journal of Clinical Pharmacology
2015年
17期
1742-1744
,共3页
载脂蛋白E%基因多态性%氟伐他汀%L-02 细胞%3-羟基-3-甲基戊二酰辅酶A
載脂蛋白E%基因多態性%氟伐他汀%L-02 細胞%3-羥基-3-甲基戊二酰輔酶A
재지단백E%기인다태성%불벌타정%L-02 세포%3-간기-3-갑기무이선보매A
apolipoprotein E%genetic polymorphism%fluvastatin%L -02 cell%hydroxy methylglutaryl coenzyme A reductase inhibitor
目的:考察不同载脂蛋白E基因型存在时,氟伐他汀对L-02细胞3-羟基-3-甲基戊二酰辅酶A(HMG-CoA)还原酶活性的影响。方法建立通过检测还原辅酶( NADPH)反应酶活性的高效液相色谱检测方法及样品处理方法。摸索细胞总蛋白与酶的反应体系,研究氟伐他汀对HMG-CoA还原酶活性的抑制作用。结果建立的高效液相色谱检测方法精密度、准确度及重现性均符合要求。 NADPH在2.5~1000.0μmol· L-1线性关系良好。0~5μg· mL-1氟伐他汀对L-02细胞中HMG-CoA还原酶活性的抑制作用成浓度依赖性,最大抑制率为49.73%。载脂蛋白E2、E3、E4分别存在时,氟伐他汀对HMG-CoA还原酶活性的抑制率分别为38.02%,25.12%,21.92%,与野生型E3相比,ApoE2差异有统计学意义( P>0.05)。结论载脂蛋白E不同基因型存在时,氟伐他汀对L-02细胞HMG-CoA还原酶活性抑制作用有差异。
目的:攷察不同載脂蛋白E基因型存在時,氟伐他汀對L-02細胞3-羥基-3-甲基戊二酰輔酶A(HMG-CoA)還原酶活性的影響。方法建立通過檢測還原輔酶( NADPH)反應酶活性的高效液相色譜檢測方法及樣品處理方法。摸索細胞總蛋白與酶的反應體繫,研究氟伐他汀對HMG-CoA還原酶活性的抑製作用。結果建立的高效液相色譜檢測方法精密度、準確度及重現性均符閤要求。 NADPH在2.5~1000.0μmol· L-1線性關繫良好。0~5μg· mL-1氟伐他汀對L-02細胞中HMG-CoA還原酶活性的抑製作用成濃度依賴性,最大抑製率為49.73%。載脂蛋白E2、E3、E4分彆存在時,氟伐他汀對HMG-CoA還原酶活性的抑製率分彆為38.02%,25.12%,21.92%,與野生型E3相比,ApoE2差異有統計學意義( P>0.05)。結論載脂蛋白E不同基因型存在時,氟伐他汀對L-02細胞HMG-CoA還原酶活性抑製作用有差異。
목적:고찰불동재지단백E기인형존재시,불벌타정대L-02세포3-간기-3-갑기무이선보매A(HMG-CoA)환원매활성적영향。방법건립통과검측환원보매( NADPH)반응매활성적고효액상색보검측방법급양품처리방법。모색세포총단백여매적반응체계,연구불벌타정대HMG-CoA환원매활성적억제작용。결과건립적고효액상색보검측방법정밀도、준학도급중현성균부합요구。 NADPH재2.5~1000.0μmol· L-1선성관계량호。0~5μg· mL-1불벌타정대L-02세포중HMG-CoA환원매활성적억제작용성농도의뢰성,최대억제솔위49.73%。재지단백E2、E3、E4분별존재시,불벌타정대HMG-CoA환원매활성적억제솔분별위38.02%,25.12%,21.92%,여야생형E3상비,ApoE2차이유통계학의의( P>0.05)。결론재지단백E불동기인형존재시,불벌타정대L-02세포HMG-CoA환원매활성억제작용유차이。
Objective To study the effect of different Apolipoprotein E isoforms on the fluvastatin inhibitory activity of 3-hydroxy-3-methyl glutaric acyl coenzyme A reductase in L -02 cells existed.Methods Enzymatic activity was evaluated by determining NADPH using HPLC method after cell sample preparation.Explored the incubation method of protein and hydroxy methylglutaryl coenzyme A reductase inhibitor ( HMG -CoA ) , as well as the inhibition effect of fluvastatin in HMG-CoA reductase activities.Results The precision , accuracy and reproducibility of the HPLC method meet the requirements.NADPH in the concentration range of 2.5-1000.0 μmol · L-1 showed good linear relationship.The fluvastatin in the concentration range of 0-5 μg· mL-1 to suppress HMG -CoA reductase activity was concentration dependent and the maximum inhibition rate was 49.73%. When Apolipoprotein E 2/3/4 exsited , the inhibition rate of fluvastatin on HMG -CoA reductase activity were 38.02%, 25.12%, 21.92%, respectively.ApoE2 showed a siganificant difference with ApoE 3.Conclusion The inhibition rate of fluvastatin in HMG -CoA reductase activities in L -02 with different Apolipoprotein E isoforms were significantly different.