Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 2 de 2
Journal of Integrative Medicine ; (12): 47-61, 2023.
Article in English | WPRIM | ID: wpr-971646


OBJECTIVE@#Huangqi Decoction (HQD), a classical traditional Chinese medicine formula, has been used as a valid treatment for alleviating liver fibrosis; however, the underlying molecular mechanism is still unknown. Although our previous studies showed that microRNA-663a (miR-663a) suppresses the proliferation and activation of hepatic stellate cells (HSCs) and the transforming growth factor-β/small mothers against decapentaplegic (TGF-β/Smad) pathway, whether long noncoding RNAs (lncRNAs) are involved in HSC activation via the miR-663a/TGF-β/Smad signaling pathway has not yet reported. The present study aimed to investigate the roles of lncRNA lnc-C18orf26-1 in the activation of HSCs and the mechanism by which HQD inhibits hepatic fibrosis.@*METHODS@#The expression levels of lnc-C18orf26-1, miR-663a and related genes were measured by quantitative reverse transcription-polymerase chain reaction. HSCs were transfected with the miR-663a mimic or inhibitor and lnc-C18orf26-1 small interfering RNAs. The water-soluble tetrazolium salt-1 assay was used to assess the proliferation rate of HSCs. Changes in lncRNA expression were evaluated in miR-663a-overexpressing HSCs by using microarray to identify miR-663a-regulated lncRNAs. RNA hybrid was used to predict the potential miR-663a binding sites on lncRNAs. Luciferase reporter assays further confirmed the interaction between miR-663a and the lncRNA. The expression levels of collagen α-2(I) chain (COL1A2), α-smooth muscle actin (α-SMA) and TGF-β/Smad signaling pathway-related proteins were determined using Western blotting.@*RESULTS@#Lnc-C18orf26-1 was upregulated in TGF-β1-activated HSCs and competitively bound to miR-663a. Knockdown of lnc-C18orf26-1 inhibited HSC proliferation and activation, downregulated TGF-β1-stimulated α-SMA and COL1A2 expression, and inhibited the TGF-β1/Smad signaling pathway. HQD suppressed the proliferation and activation of HSCs. HQD increased miR-663a expression and decreased lnc-C18orf26-1 expression in HSCs. Further studies showed that HQD inhibited the expression of COL1A2, α-SMA, TGF-β1, TGF-β type I receptor (TGF-βRI) and phosphorylated Smad2 (p-Smad2) in HSCs, and these effects were reversed by miR-663a inhibitor treatment.@*CONCLUSION@#Our study identified lnc-C18orf26-1 and miR-663a as promising therapeutic targets for hepatic fibrosis. HQD inhibits HSC proliferation and activation at least partially by regulating the lnc-C18orf26-1/miR-663a/TGF-β1/TGF-βRI/p-Smad2 axis.

Humans , Transforming Growth Factor beta/pharmacology , Transforming Growth Factor beta1/metabolism , RNA, Long Noncoding/pharmacology , Drugs, Chinese Herbal/pharmacology , MicroRNAs/genetics , Hepatic Stellate Cells/pathology , Liver Cirrhosis/metabolism , Cell Proliferation , Transforming Growth Factors/pharmacology
Chinese Journal of Epidemiology ; (12): 357-360, 2011.
Article in Chinese | WPRIM | ID: wpr-273186


Objective To disclose the epidemiological status of type 2 diabetes mellitus and its related risk factors in adults in Beijing.Methods Logistic model was applied to analyze the relationship between the risk factors and type 2 diabetes mellitus.Results A total of 22301 people were studied,of whom 9836 were males,12465 females,and 2658 of them aged over 60(accounting for 11.92%).The risk factors,which might cause diabetes,would include being male(OR=1.453),with genetic history(OR=2.751),people older than 40(OR=1.584),with hypertension(OR=1.338),with larger waist circumference(OR=1.741),overweight or obesity(OR=1.098),low consumption of fruits(OR=1.430),hypertriglyceridemia(OR=1.767)and hypercholesterolemia (OR=1.315).Conclusion It is of great importance to carry out prevention and controI of type 2 diabetes mellitus programs to eliminate the risk factors among adults in Beijing,with contents as:keeping the blood pressure and weight within the normal range,increasing fruit intake,decreasing the triglyceride and cholesterol levels.