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黑龙江省中医药科学院 中药所,哈尔滨 150036
董文婷,硕士,从事中药学研究,Tel:0451-55653086,E-mail:1776427432@qq.com
王伟明,从事中药学研究,Tel:0451-55653086,E-mail:zyyjy@163.com
修回日期:2020-04-08,
网络出版日期:2020-05-22,
纸质出版日期:2020-08-05
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董文婷,孙建峰,庄岩等.GC-MS分析玉米须对2型糖尿病大鼠脂肪组织的影响[J].中国实验方剂学杂志,2020,26(15):116-123.
DONG Wen-ting,SUN Jian-feng,ZHUANG-Yan ,et al.Effect of Corn Silk on Adipose Tissues in Type 2 Diabetic Rats Based on GC-MS[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(15):116-123.
董文婷,孙建峰,庄岩等.GC-MS分析玉米须对2型糖尿病大鼠脂肪组织的影响[J].中国实验方剂学杂志,2020,26(15):116-123. DOI: 10.13422/j.cnki.syfjx.20201712.
DONG Wen-ting,SUN Jian-feng,ZHUANG-Yan ,et al.Effect of Corn Silk on Adipose Tissues in Type 2 Diabetic Rats Based on GC-MS[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(15):116-123. DOI: 10.13422/j.cnki.syfjx.20201712.
目的
2
基于GC-MS技术分析玉米须水煎液对2型糖尿病(T2DM)大鼠脂肪组织中脂肪酸组成的影响,阐明玉米须水煎液调节脂代谢紊乱的作用机制。
方法
2
采用高糖高脂饲料结合腹腔注射35 mg·kg
-1
链脲佐菌素(STZ)复制T2DM大鼠模型,随机分为模型组、二甲双胍组、玉米须水煎液低、中、高剂量(5.4,10.8,21.6 g·kg
-1
)组,连续给药4周。腹主动脉取血清,用于游离脂肪酸(FFAs),血脂[总胆固醇(TC),甘油三酯(TG),高密度脂蛋白(HDL-C),低密度脂蛋白(LDL-C)]的测定;并对脂肪组织进行病理切片观察;同时,应用GC-MS技术及多元统计分析方法考察脂肪组织中脂肪酸组成。
结果
2
经玉米须水煎液治疗后,T2DM大鼠血清中FFAs,TC,TG,HDL-C,LDL-C含量均有所回调;且与模型组相比,给药后大鼠脂肪细胞形态、巨噬细胞浸润、血管充血等现象均有不同程度的恢复。GC-MS分析发现,T2DM大鼠脂肪组织中棕榈酸、硬脂酸含量明显升高,而十四烷酸,十五烷酸,棕榈油酸,油酸,5,8,11,14-二十烷四烯酸等含量明显下降,玉米须不同剂量组对差异表达的脂肪酸均具有回调作用。
结论
2
玉米须可回调脂肪组织中脂肪酸含量且恢复脂肪组织正常形态,具有调节T2DM大鼠脂代谢紊乱的作用。
Objective
2
To evaluate the regulation effect of corn silk on fatty acid compositions in adipose tissues of rats with type 2 diabetes mellitus(T2DM) based on gas chromatography-mass spectrometry (GC-MS), and explore the mechanism of corn silk water decoction for lipid metabolism disorder in .
Method
2
Rat model of T2DM was established by high-sugar and high-fat diet combined with intraperitoneal injection of 35 mg·kg
-1
streptozocin (STZ). They were randomly divided into model group,metformin group,and low,medium and high dose groups(5.4,10.8,21.6 g·kg
-1
) of corn silk decoction, with administration of 4 weeks. Serum was taken from the abdominal aorta for the determination of free fatty acids (FFAs),blood lipids [total cholesterol(TC),triglyceride(TG),high-density lipoprotein(HDL-C),low density lipoprotein(LDL-C)],and adipose tissue was taken for pathological section analysis. At the same time,GC-MS technology and multivariate statistical analysis methods were adopted to investigate the fatty acid compositions in adipose tissue.
Result
2
After treatment with corn silk decoction,the contents of FFAs,TC,TG,HDLC and LDLC in T2DM rats were all reversed. As compared with the model group,the morphology of rat adipocytes,macrophage infiltration,vascular congestion and other phenomena were restored after administration. GC-MS analysis showed that the contents of palmitic acid and stearic acid in the adipose tissue of T2DM rats were significantly increased,while the contents of tetradecanoic acid,pentadecanoic acid,9-octadecenoic acid,9-hexadecenoic acid and 5,8,11,14-eicosatetraenoic acid were decreased significantly,and all the dose groups of corn silk had a reversing effect on differentially expressed fatty acids.
Conclusion
2
Corn silk can be able to reverse the fatty acid content in adipose tissue and restore the morphology of adipose tissue,with a regulating effect on the lipid metabolism disorder in T2DM rats.
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