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1.北京中医药大学,北京 100029
2.中国中医科学院 广安门医院,北京 100053
徐婧,在读博士,从事中医药防治内分泌代谢性疾病研究,E-mail:619617607@qq.com
朱晓云,助理研究员,从事中医药防治内分泌代谢性疾病研究,Tel:010-88001383,E-mail:qiebenben@163.com
收稿日期:2021-04-15,
网络出版日期:2021-06-29,
纸质出版日期:2021-09-05
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徐婧,刘喜明,朱晓云等.代综方对不同方式诱导3T3-L1脂肪细胞胰岛素抵抗的改善作用[J].中国实验方剂学杂志,2021,27(17):1-8.
XU Jing,LIU Xi-ming,ZHU Xiao-yun,et al.Effect of Daizongfang on Insulin Resistance of 3T3-L1 Adipocytes Induced by Different Methods[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(17):1-8.
徐婧,刘喜明,朱晓云等.代综方对不同方式诱导3T3-L1脂肪细胞胰岛素抵抗的改善作用[J].中国实验方剂学杂志,2021,27(17):1-8. DOI: 10.13422/j.cnki.syfjx.20211602.
XU Jing,LIU Xi-ming,ZHU Xiao-yun,et al.Effect of Daizongfang on Insulin Resistance of 3T3-L1 Adipocytes Induced by Different Methods[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(17):1-8. DOI: 10.13422/j.cnki.syfjx.20211602.
目的
2
探讨中药代综方(DZF)对不同方式诱导的脂肪细胞胰岛素抵抗(IR)的改善作用。
方法
2
鸡尾酒式联合诱导3T3-L1前脂肪细胞分化成熟,分别采用棕榈酸(PA),高浓度葡萄糖(HG),地塞米松(DEX)诱导建立IR模型。不同质量浓度DZF提取物(含生药质量浓度2.0,0.5,0.1 g·L
-1
)干预24 h,另设模型组,罗格列酮(RSG)组,空白组。采用葡萄糖氧化酶法(GOD-POD)法检测培养上清中的葡萄糖浓度,计算葡萄糖基础消耗量(G
Basic
)和胰岛素刺激下葡萄糖消耗量(G
Ins
),评价胰岛素敏感性指数(ISI)。实时荧光定量聚合酶链式反应(Real-time PCR)测葡萄糖转运蛋白4(GLUT4) mRNA表达。
结果
2
与模型组比较,3种模型中,DZF高浓度组G
Basic
,G
Ins
,ISI均明显增加(
P
<
0.05,
P
<
0.01);另外,PA诱导的IR模型中,DZF中浓度组G
Basic
,G
Ins
显著增加(
P
<
0.01),RSG组的G
Basic
,G
Ins
,ISI明显增加(
P
<
0.05,
P
<
0.01);HG诱导的IR模型中,DZF中浓度组的G
Ins
,ISI显著增加(
P
<
0.05),RSG组G
Basic
,G
Ins
,ISI显著增加(
P
<
0.01);DEX诱导的IR模型中,RSG组G
Ins
,ISI显著增加(
P
<
0.01);3种模型中,不同质量浓度组间存在差异,DZF高浓度组G
Basic
,G
Ins
,ISI较DZF中、低浓度组有不同程度的增加(
P
<
0.05)。3种模型中,DZF高浓度组,RSG组均提高了GLUT4 mRNA表达(
P
<
0.05)。
结论
2
代综方能够减轻HG,DEX,PA诱导的脂肪细胞IR,存在一定的量效关系,同时具有非胰岛素依赖的增加葡萄糖摄取作用;其机制可能与提高GLUT4表达有关。
Objective
2
To investigate the effects of Daizongfang (DZF) on insulin resistance (IR) of adipocytes induced by different methods.
Method
2
The cocktail induction method was adopted to induce the differentiation and maturity of 3T3-L1 preadipocytes. An IR model in mature adipocytes was established by the induction of palmitic acid (PA), high-concentration glucose (HG), and dexamethasone (DEX). DZF extracts at different concentrations (2.0, 0.5, 0.1 g·L
-1
) intervened for 24 hours. A model group, a rosiglitazone (RSG) group, and a blank control group were set up at the same time. The glucose concentration in the culture supernatant was measured by the glucose oxidase-peroxidase (GOD-POD) method. Glucose consumptions under basic conditions (G
Basic
) and insulin stimulation (G
Ins
) were calculated to evaluate the insulin sensitivity index (ISI). The mRNA expression of glucose transporter 4 (GLUT4) was detected by the real-time polymerase chain reaction (PCR).
Result
2
Compared with the model group, the DZF (2.0 g·L
-1
) showed increased G
Basic
, G
Ins
, and ISI in three IR models (
P
<
0.05,
P
<
0.01). In addition, for the PA-induced IR model, G
Basic
and G
Ins
in the DZF (0.5 g·L
-1
) group were elevated (
P
<
0.01), and G
Basic
, G
Ins
, and ISI in the RSG group increased (
P
<
0.05,
P
<
0.01). For the HG-induced IR model, G
Ins
and ISI increased in the DZF (0.5 g·L
-1
) group (
P
<
0.05), and G
Basic
, G
Ins
, and ISI were elevated in the RSG group (
P
<
0.01). For the DEX-induced IR model, G
Ins
and ISI increased in the RSG group (
P
<
0.01). In the three models, there were differences among groups with different doses. G
Basic
, G
Ins
, and ISI in the high-dose DZF group increased in varying degrees compared with those in the medium- and low-dose DZF groups (
P
<
0.05). In the three models, the DZF (2.0 g·L
-1
) group and the RSG group both increased GLUT4 mRNA expression (
P
<
0.05).
Conclusion
2
DZF can reduce IR of adipocytes induced by HG, DEX, or PA in a dose-dependent manner and increase glucose uptake in an insulin-independent manner, which may be related to the increase in GLUT4 expression.
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