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Sun R, Wang J, Zheng Y, Li X, Xie T, Li R, Liu M, Cao Y, Lu L, Zhang Q, Zhang P. Traditional Chinese medicine baoxin decoction improves cardiac fibrosis of rats with dilated cardiomyopathy. Exp Ther Med 2017; 13:1900-1906. [PMID: 28565783 PMCID: PMC5443197 DOI: 10.3892/etm.2017.4223] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 01/27/2017] [Indexed: 11/06/2022] Open
Abstract
We investigated the effect of baoxin decoction (BXD) on myocardial fibrosis and clarified the possible mechanism of action. Dilated myocardiopathy was induced by doxorubicin injected intraperitoneally for 6 weeks. Rats that demonstrated dilated myocardiopathy were randomly divided into five groups plus a control group. Three groups were treated with BXD (7.5/kg, 15 g/kg and 30 g/kg) daily for 4 weeks. One group was treated with 8.75 g/kg of captopril (positive control), and with physiologic saline (negative control). Cardiac function was evaluated using echocardiography. Hematoxylin and eosin, and Massons trichrome staining were performed, PICP and PIIINP were assessed by ELISA, the expression of galectin-3 and collagen types I and III was evaluated with reverse transcription-quantitative PCR, and interrelated proteins were detected by western blot analysis. BXD downregulated galectin-3, collagen I and III and was correlated with a high expression of fibrosis markers. It also significantly decreased myocardial collagen volume fraction (CVF), together with markedly preventing the upregulation of collagen I and III. In addition, BXD downregulated the expression of TGF-β1 and Smad3 in the myocardial fibrosis rats. Therefore, BXD treatment significantly improved cardiac function and alleviated myocardial fibrosis in a rat model of doxorubicin-induced dilated cardiomyopathy (DCM), which is the mechanism that may be associated with inhibiting the TGF-β1 signaling pathway.
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Affiliation(s)
- Rongrong Sun
- Clinical Medicine, Nanjing University of Traditional Chinese Medicine, The Affiliated Xuzhou Central Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Jiangbo Wang
- Department of Neurology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Yi Zheng
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Xianchi Li
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Tiantian Xie
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Rui Li
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Min Liu
- Department of Cardiology, Xuzhou Hospital of Traditional Medicine, Xuzhou, Jiangsu 221009, P.R. China
| | - Yong Cao
- Department of Cardiology, Xuzhou Hospital of Traditional Medicine, Xuzhou, Jiangsu 221009, P.R. China
| | - Lei Lu
- Department of Cardiology, Xuzhou Hospital of Traditional Medicine, Xuzhou, Jiangsu 221009, P.R. China
| | - Qing Zhang
- Department of Cardiology, Xuzhou Hospital of Traditional Medicine, Xuzhou, Jiangsu 221009, P.R. China
| | - Peiying Zhang
- Department of Cardiology, The Affiliated Xuzhou Central Hospital of Nanjing University of Traditional Chinese Medicine, The Affiliated Xuzhou Hospital of Medical School of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
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Innovative development path of ethnomedicines: the interpretation of the path. Front Med 2017; 11:32-47. [PMID: 28220457 DOI: 10.1007/s11684-016-0495-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 09/01/2016] [Indexed: 10/20/2022]
Abstract
One of the primary purposes of the innovative development of ethnomedicines is to use their excellent safety and significant efficacy to serve a broader population. To achieve this purpose, modern scientific and technological means should be referenced, and relevant national laws and regulations as well as technical guides should be strictly followed to develop standards and to perform systemic research in producing ethnomedicines. Finally, ethnomedicines, which are applied to a limited extent in ethnic areas, can be transformed into safe, effective, and quality-controllable medical products to relieve the pain of more patients. The innovative development path of ethnomedicines includes the following three primary stages: resource study, standardized development research, and industrialization of the achievements and efforts for internationalization. The implementation of this path is always guaranteed by the research and development platform and the talent team. This article is based on the accumulation of long-term practice and is combined with the relevant disciplines, laws and regulations, and technical guidance from the research and development of ethnomedicines. The intention is to perform an in-depth analysis and explanation of the major research thinking, methods, contents, and technical paths involved in all stages of the innovative development path of ethnomedicines to provide useful references for the development of proper ethnomedicine use.
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Lo SH, Hsu CT, Niu HS, Niu CS, Cheng JT, Chen ZC. Cryptotanshinone Inhibits STAT3 Signaling to Alleviate Cardiac Fibrosis in Type 1-like Diabetic Rats. Phytother Res 2017; 31:638-646. [PMID: 28176375 DOI: 10.1002/ptr.5777] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 12/08/2016] [Accepted: 01/07/2017] [Indexed: 12/26/2022]
Abstract
Cryptotanshinone is an active principal ingredient isolated from Salvia miltiorrhiza (Danshen), a medicinal plant used in China to treat cardiac disorders. The objective of this study was to investigate the effect of cryptotanshinone on myocardial fibrosis in diabetic rats. In streptozotocin-induced type 1 diabetic model hyperglycemic rats (STZ-treated rats), fasting blood glucose levels and heart weight/body weight ratio were markedly increased but both were not modified by cryptotanshinone. Additionally, cardiac performance in catheterized STZ-treated rats was improved. The histological results from Masson staining showed that cryptotanshinone attenuated cardiac fibrosis in STZ-treated rats. Moreover, both the mRNA and protein levels of the signal transducer and activator of transcription 3 (STAT3), matrix metalloproteinase-9, and connective tissue growth factor were reduced by cryptotanshinone in high glucose-cultured cardiomyocytes, similar to the reductions observed in the hearts of STZ-treated rats. In conclusion, while STAT3 regulates matrix metalloproteinase-9 and connective tissue growth factor expression in diabetic rats with cardiac fibrosis, cryptotanshinone inhibited fibrosis to improve cardiac function by suppressing the STAT3 pathway. Cryptotanshinone is suitable as an alternative remedy for therapy of cardiac fibrosis. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Shih-Hsiang Lo
- Division of Cardiology, Department of Internal Medicine, Zhongxing Branch of Taipei City Hospital, Taipei City, 10341, Taiwan.,Department of Nursing, Tzu Chi University of Science and Technology, Hualien City, 97041, Taiwan
| | - Chao-Tien Hsu
- Department of Pathology, E-DA Hospital, I-Shou University, Yanchao, Kaohsiung City, 82401, Taiwan
| | - Ho-Shan Niu
- Department of Nursing, Tzu Chi University of Science and Technology, Hualien City, 97041, Taiwan
| | - Chiang-Shan Niu
- Department of Nursing, Tzu Chi University of Science and Technology, Hualien City, 97041, Taiwan
| | - Juei-Tang Cheng
- Department of Cardiology, Chi-Mei Medical Center, Yong Kang, Tainan City, 71003, Taiwan.,Department of Medical Research, Chi-Mei Medical Center, Yong Kang, Tainan City, 71003, Taiwan.,Institute of Medical Sciences, Chang Jung Christian University, Guiren, Tainan City, 71101, Taiwan
| | - Zhih-Cherng Chen
- Department of Cardiology, Chi-Mei Medical Center, Yong Kang, Tainan City, 71003, Taiwan.,Department of Medical Research, Chi-Mei Medical Center, Yong Kang, Tainan City, 71003, Taiwan.,Department of Pharmacy, Chia Nan University of Pharmacy & Science, Jean-Tae City, Tainan County, 71701, Taiwan
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Ibrahim MG, Sillem M, Plendl J, Chiantera V, Sehouli J, Mechsner S. Myofibroblasts Are Evidence of Chronic Tissue Microtrauma at the Endometrial–Myometrial Junctional Zone in Uteri With Adenomyosis. Reprod Sci 2017; 24:1410-1418. [DOI: 10.1177/1933719116687855] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mohamed Gamal Ibrahim
- Clinic for Gynaecology, Charité University of Medicine, Hindenburgdamm, Berlin, Germany
| | - Martin Sillem
- Praxisklinik am Rosengarten, Augustaanlage, Mannheim, Germany
| | - Johanna Plendl
- Department of Veterinary Medicine, Institute of Veterinary Anatomy, Free University of Berlin, Berlin, Germany
| | - Vito Chiantera
- Clinic for Gynaecology, Charité University of Medicine, Hindenburgdamm, Berlin, Germany
| | - Jalid Sehouli
- Clinic for Gynaecology, Charité University of Medicine, Hindenburgdamm, Berlin, Germany
| | - Sylvia Mechsner
- Clinic for Gynaecology, Charité University of Medicine, Hindenburgdamm, Berlin, Germany
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Fei L, Xu K. Zhikang Capsule ameliorates dextran sodium sulfate-induced colitis by inhibition of inflammation, apoptosis, oxidative stress and MyD88-dependent TLR4 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2016; 192:236-247. [PMID: 27452656 DOI: 10.1016/j.jep.2016.07.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/17/2016] [Accepted: 07/20/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zhikang Capsule (ZKC) is a traditional Chinese medicine (TCM) modified from classic formulas Qi-Li-San (an ancient formula dating to Qing Dynasty) and Fu-Jin-Sheng-Ji-San (written into The Golden Mirror of Medicine). ZKC contains 14 kinds of materials and has been widely used for the clinical therapy of inflammatory bowel diseases (IBD) for a long time. However, the therapeutic mechanisms of ZKC are still unclear. AIM OF THE STUDY To determine the protective effect of ZKC on dextran sodium sulfate (DSS)-induced colitis and explore the underlying mechanisms. MATERIALS AND METHODS C57BL/6 mice were fed with 3% DSS in drinking water for one week to induce experimental colitis. They were randomly assigned to six groups according to the treatment conditions. The histological changes of colon tissues were observed by hematoxylin and eosin (H&E) staining. The serum concentration of pro-inflammatory cytokines (TNF-α, IFN-γ, IL-1β, and IL-12) and anti-inflammatory mediators (IL-4 and IL-10) was detected by enzyme-linked immune sorbent assays (ELISAs). The production of MPO, SOD, MDA, NO, and caspase-3 was assessed by biochemical assay kits. The expression of iNOS, ICAM-1, and NF-ΚB was evaluated by immunohistochemistry staining. The levels of TLR4, MyD88, and TRAF6 were determined by western blot. RESULTS Histologic analysis exhibited that ZKC alleviated the inflammation, loss of goblet cells, and submucosal edema induced by DSS. ZKC significantly suppressed the pro-inflammatory cytokines and promoted the anti-inflammatory mediators. The antioxidation of ZKC was indicated by increased activity of SOD and reduced production of MDA, NO, and iNOS in ZKC-treated mice. Furthermore, ZKC repressed the colonic expression of caspase-3 and the activity of the MyD88-dependent TLR4 signaling pathway. CONCLUSIONS This research demonstrated the protective effect of ZKC on DSS-induced colitis. For the first time, we identified four therapeutic mechanisms of ZKC, including effective inhibition of the inflammatory responses, significant alleviation of intestinal epithelium apoptosis, considerable prevention of oxidative stress, and selective down-regulation of the MyD88-dependent TLR4 signaling pathway. With high therapeutic effects and low toxic effects, ZKC exhibits great superiority over western medicines in IBD treatment.
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Affiliation(s)
- Liang Fei
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277Jiefang Road, Wuhan 430022, PR China.
| | - Keshu Xu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277Jiefang Road, Wuhan 430022, PR China.
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The anti-hyperglycemic efficacy of a lipid-lowering drug Daming capsule and the underlying signaling mechanisms in a rat model of diabetes mellitus. Sci Rep 2016; 6:34284. [PMID: 27721485 PMCID: PMC5056381 DOI: 10.1038/srep34284] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 09/09/2016] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus (DM) is a metabolic disorder manifested by hyperglycemia. Daming Capsule (DMC), a combination of traditional Chinese herbs, is used clinically as a lipid-lowering drug. This study was designed to evaluate if DMC possesses an anti-hyperglycemic effect and to elucidate the underlying mechanisms. Compared to diabetic rats, the rats received DMC (200 mg/kg/d) had significantly lower blood lipid and glucose levels. DMC markedly restored the decreased secretion of GLP-1 and GIP as well as the coding gene GCG and GIP in ileum. Moreover, DMC normalized depressed GCG and GIP transcription by significantly enhancing the GSK-3β/β-catenin signaling pathway and expression of TCF7L2, a transactivator of GCG and GIP in diabetic rats. DMC possesses an anti-hyperglycemic property characterized by preservation/stimulation of GLP-1 and GIP secretion in DM rats. Here, we proposed DMC → GSK-3β/β-catenin↑ → TCF7L2↑ → GLP-1, GIP secretion↑ → blood glucose↓ as a regulatory pathway of blood glucose homeostasis. Our findings suggest DMC as a promising therapeutic drug in the clinical treatment of diabetes.
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Zhang Y, Wu X, Li Y, Zhang H, Li Z, Zhang Y, Zhang L, Ju J, Liu X, Chen X, Glybochko PV, Nikolenko V, Kopylov P, Xu C, Yang B. Endothelial to mesenchymal transition contributes to arsenic-trioxide-induced cardiac fibrosis. Sci Rep 2016; 6:33787. [PMID: 27671604 PMCID: PMC5037371 DOI: 10.1038/srep33787] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 09/01/2016] [Indexed: 12/26/2022] Open
Abstract
Emerging evidence has suggested the critical role of endothelial to mesenchymal transition (EndMT) in fibrotic diseases. The present study was designed to examine whether EndMT is involved in arsenic trioxide (As2O3)-induced cardiac fibrosis and to explore the underlying mechanisms. Cardiac dysfunction was observed in rats after exposure to As2O3 for 15 days using echocardiography, and the deposition of collagen was detected by Masson’s trichrome staining and electron microscope. EndMT was indicated by the loss of endothelial cell markers (VE-cadherin and CD31) and the acquisition of mesenchymal cell markers (α-SMA and FSP1) determined by RT-PCR at the mRNA level and Western blot and immunofluorescence analysis at the protein level. In the in-vitro experiments, endothelial cells acquired a spindle-shaped morphology accompanying downregulation of the endothelial cell markers and upregulation of the mesenchymal cell markers when exposed to As2O3. As2O3 activated the AKT/GSK-3β/Snail signaling pathway, and blocking this pathway with PI3K inhibitor (LY294002) abolished EndMT in As2O3-treated endothelial cells. Our results highlight that As2O3 is an EndMT-promoting factor during cardiac fibrosis, suggesting that targeting EndMT is beneficial for preventing As2O3-induced cardiac toxicity.
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Affiliation(s)
- Yong Zhang
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China.,Institute of Metabolic Disease, Heilongjiang Academy of Medical Science, Harbin, 150086, China
| | - Xianxian Wu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Yang Li
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province &Ministry of Health (23618504), Harbin Medical University, Harbin, 150081, China
| | - Haiying Zhang
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Zhange Li
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Ying Zhang
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Longyin Zhang
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Jiaming Ju
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Xin Liu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Xiaohui Chen
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Peter V Glybochko
- The Research Center, Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - Vladimir Nikolenko
- The Research Center, Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - Philipp Kopylov
- Department of preventive and emergency cardiology, Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - Chaoqian Xu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Baofeng Yang
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China.,Department of Pharmacology and Therapeutics, Melbourne School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, 3010, Australia
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Han F, Zhou D, Yin X, Sun Z, Han J, Ye L, Zhao W, Zhang Y, Wang Z, Zheng L. Paeoniflorin protects diabetic mice against myocardial ischemic injury via the transient receptor potential vanilloid 1/calcitonin gene-related peptide pathway. Cell Biosci 2016; 6:37. [PMID: 27252827 PMCID: PMC4888521 DOI: 10.1186/s13578-016-0085-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 02/21/2016] [Indexed: 12/13/2022] Open
Abstract
Background Diabetes mellitus has multiple complications including neuropathy and increases cardiovascular events. Paeoniflorin (PF), a monoterpene glycoside, plays an essential role in neuroprotection and ischemic heart disease. In this study, we aimed to investigate the hypothesis that PF protects mice with diabetes mellitus against myocardial ischemic injury, and determine its associated mechanisms. Results Myocardial infarction (MI) was generated in the streptozotocin-mediated diabetic mice, which were pretreated with either vehicle or PF, respectively. Myocardial infarct size, myocardial enzyme, cardiac function, circulating calcitonin gene-related peptide (CGRP) concentration, histological analysis and the expression of associated molecules were determined and compared among different experimental groups. Compared to diabetic hearts pretreated with vehicle, hearts pretreated with PF exhibited less tissue damage and better CGRP concentration in serum when subjected to myocardial ischemia. Transient receptor potential vanilloid 1(TRPV1) gene knockout attenuated PF-mediated cardioprotection. Moreover, a specific Ca2+/calmodulin-dependent protein kinase (CaMK) inhibitor, KN-93, increased tissue damage and decreased CGRP activity in serum. Meanwhile, pretreated with PF increased the phosphorylation of cAMP response element binding protein (CREB). Conclusions Taken together, these findings demonstrate that PF protects diabetic mice against MI at least partially via the TRPV1/CaMK/CREB/CGRP signaling pathway.
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Affiliation(s)
- Fei Han
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
| | - Dongchen Zhou
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
| | - Xiang Yin
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
| | - Zewei Sun
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
| | - Jie Han
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
| | - Lifang Ye
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
| | - Wengting Zhao
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
| | - Yuanyuan Zhang
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
| | - Zhen Wang
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
| | - Liangrong Zheng
- Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003 China
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Shensong Yangxin (SSYX) ameliorates disordered excitation transmission by suppressing cardiac collagen hyperplasia in rabbits with chronic myocardial infarction. ACTA ACUST UNITED AC 2016; 36:162-167. [PMID: 27072956 DOI: 10.1007/s11596-016-1560-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 01/26/2016] [Indexed: 01/24/2023]
Abstract
The traditional Chinese medicine Shensong Yangxin (SSYX) can improve the clinical symptoms of arrhythmia in an integrated manner. This study aimed to investigate the electrophysiological effect of SSYX on the hearts of myocardial-infarcted rabbits and further explore the mechanism by which SSYX alleviates myocardial fibrosis. Myocardial infarction (MI) was established in rabbits by ligation of the left circumflex coronary. The rabbits were treated with SSYX (0.5 g/kg/d) or saline for 8 weeks by oral administration. Microelectrode array (MEA) technology was used in vivo for extracellular electrophysiological recordings of the infarct border zone. Masson's trichrome staining was used to observe myocardial fibrosis. Western blotting was performed to evaluate the protein expression levels of collagen I (COL I) and collagen III (COL III). Quantitative real-time polymerase chain reaction (real-time PCR) was performed to evaluate the TGF-β1 and MMP-2 mRNA expression levels. The results showed that the total activation time (TAT) and the dispersion of TAT were significantly increased and the excitation propagation markedly disordered after MI. SSYX could significantly decrease TAT and the dispersion of TAT, and significantly ameliorate the chaotic spread pattern of excitation. Furthermore, SSYX treatment could significantly decrease COL I and COL III protein levels and down-regulate TGF-β1 and MMP-2 mRNA expression levels in MI rabbits. It was concluded that SSYX may ameliorate cardiac electrophysiological abnormalities in infarcted hearts by decreasing the protein levels of COL I and COL III, down-regulating the mRNA expression levels of TGF-β1 and MMP2, and thereby reducing adverse cardiac remodeling.
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Zhang T, Hu Y, Ju J, Hou L, Li Z, Xiao D, Li Y, Yao J, Wang C, Zhang Y, Zhang L. Downregulation of miR-522 suppresses proliferation and metastasis of non-small cell lung cancer cells by directly targeting DENN/MADD domain containing 2D. Sci Rep 2016; 6:19346. [PMID: 26783084 PMCID: PMC4726064 DOI: 10.1038/srep19346] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 12/07/2015] [Indexed: 12/17/2022] Open
Abstract
Non-small cell lung cancer (NSCLC), one of the most common causes of cancer-related death, is a worldwide public health problem. MicroRNAs (miRNAs) have recently been identified as a novel class of regulators of carcinogenesis and tumor progression, including miRNAs associated with NSCLC. This study aimed to explore the role of miR-522 in NSCLC and the mechanisms underlying this role. We report here that miR-522 expression was significantly increased in both human NSCLC tissues and cell lines. Furthermore, an MTT assay, 5-Ethynyl-2′-deoxyuridine (EdU) assay kit and flow cytometry confirmed that the inhibition of miR-522 suppressed NSCLC cells proliferation and induced apoptosis. Compared with miR-522 overexpression, miR-522 inhibitor markedly reduced cells migration and invasion, as indicated by wound-healing and transwell assays. In addition, a luciferase assay identified DENN/MADD domain containing 2D (DENND2D) as a direct target of miR-522. qRT-PCR and western blot analyses indicated the reciprocal expression of miR-522 and DENND2D in NSCLC tissue samples. DENND2D was involved in miR-522 induced proliferation and metastasis of NSCLC cells by a miRNA-masking antisense oligonucleotides (miR-mask) technology. These data highlight a novel molecular interaction between miR-522 and DENND2D, which indicates that targeting miR-522 may constitute a potential therapy for NSCLC.
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Affiliation(s)
- Tianze Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Yingying Hu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine- Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin 150081, China.,Department of Pharmacy, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Jin Ju
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine- Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin 150081, China
| | - Liangyu Hou
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine- Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin 150081, China
| | - Zhange Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine- Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin 150081, China
| | - Dan Xiao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine- Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin 150081, China
| | - Yongchao Li
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Jianyu Yao
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Chao Wang
- Department of Anesthesiology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Yong Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine- Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin 150081, China
| | - Linyou Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
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Development of Bioadhesive Microspheres for Oral Bioavailability Enhancement of Berberine Hydrochloride. INT J POLYM SCI 2016. [DOI: 10.1155/2016/4235832] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The objective of this study was to innovatively prepare chitosan-coated alginate/gelatin BBH loaded microspheres and evaluate their pharmaceutical characteristics and pharmacokinetics. The bioadhesive microspheres were prepared using an emulsification technique. Three batches of microspheres were formed and their stability was evaluated. BBH loaded microspheres were almost spherical with shallow elevation on surfaces. The mean particle size of microspheres was 368.2 μm, drug loading was3.59±0.01%, andin situbioadhesion percentage was91.23%±8.2%and they achieved a sustained release with 71.29% for 8 hoursin vitro. Pharmacokinetic studies in rats indicated that the bioavailability of BBH microspheres was enhanced about 1.5-fold as compared with commercial tablets. BBH microspheres exhibited a sustained-release profile over 48 h. Thus, chitosan-coated alginate/gelatin BBH loaded microspheres which combined the advantages of alginate/gelatin microspheres and chitosan may be used as a sustained delivery system for BBH to treat duodenal and benign gastric ulcers.
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MicroRNA-26a prevents endothelial cell apoptosis by directly targeting TRPC6 in the setting of atherosclerosis. Sci Rep 2015; 5:9401. [PMID: 25801675 PMCID: PMC4371083 DOI: 10.1038/srep09401] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 03/03/2015] [Indexed: 12/19/2022] Open
Abstract
Atherosclerosis, a chronic inflammatory disease, is the major cause of life-threatening complications such as myocardial infarction and stroke. Endothelial apoptosis plays a vital role in the initiation and progression of atherosclerotic lesions. Although a subset of microRNAs (miRs) have been identified as critical regulators of atherosclerosis, studies on their participation in endothelial apoptosis in atherosclerosis have been limited. In our study, we found that miR-26a expression was substantially reduced in the aortic intima of ApoE−/− mice fed with a high-fat diet (HFD). Treatment of human aortic endothelial cells (HAECs) with oxidized low-density lipoprotein (ox-LDL) suppressed miR-26a expression. Forced expression of miR-26a inhibited endothelial apoptosis as evidenced by MTT assay and TUNEL staining results. Further analysis identified TRPC6 as a target of miR-26a, and TRPC6 overexpression abolished the anti-apoptotic effect of miR-26a. Moreover, the cytosolic calcium and the mitochondrial apoptotic pathway were found to mediate the beneficial effects of miR-26a on endothelial apoptosis. Taken together, our study reveals a novel role of miR-26a in endothelial apoptosis and indicates a therapeutic potential of miR-26a for atherosclerosis associated with apoptotic cell death.
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