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Peng Y, Cai P, Zou SF, Jia M, Zhong WT, Wang Y, Wang XK. High dose insulin promotes the proliferation of vascular smooth muscle cells via AP-1/SM-α pathway. J BIOL REG HOMEOS AG 2021; 35:1029-1040. [PMID: 34155876 DOI: 10.23812/21-201-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Proliferation of vascular smooth muscle cells (VSMCs) participates in multiple cardiovascular disorders, while the mechanism remains unclear. This study aims to investigate the effects of insulin on VSMC. Insulin was used to stimulate rat VSMCs, and the effects on cell cycle and proliferation were subsequently analyzed using flow cytometry. Furthermore, AP-1 and SM-α overexpression vectors were constructed and transfected into VSMCs. AP-1 and SM-α were inhibited by SR11302 and SM-α siRNA, respectively. The mRNA and protein expression levels were subsequently detected using the reversetranscription quantitative polymerase chain reaction and western blotting, respectively. AP-1 and SM-α gene promoter binding sites were determined using luciferase and chromatin immunoprecipitation assays. As a result, we found that high dose of insulin promoted proliferation of VSMCs and increased the percentage of cells in the S phase by downregulating AP-1. AP-1 was identified to bind to the SM-α gene promoter at locus 2-177 to upregulate SM-α gene expression. Inhibition of AP-1 led to the decrease of SM-α expression. Overexpression of SM-α directly suppressed proliferation of VSMCs, while knocking it down promoted the process. Therefore, this study revealed that insulin downregulated the expression of the SM-α gene by inhibiting AP-1, which in turn facilitated proliferation of VSMCs.
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Affiliation(s)
- Y Peng
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, P.R. China
| | - P Cai
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, P.R. China
| | - S F Zou
- Department of Cardiac Surgery, Xinqiao Hospital, Army Medical University Shapingba District, Chongqing, P.R. China
| | - M Jia
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, P.R. China
| | - W T Zhong
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, P.R. China
| | - Y Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Honghuagang District, Zunyi, Guizhou, P.R. China
| | - X K Wang
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, P.R. China
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Li H, Ye SS, Wu YL, Huang SM, Li YX, Lu K, Huang JB, Chen L, Li HZ, Wu WJ, Wu ZL, Wu JZ, Zhong WT, Xian WC, Liao F, Tung TH, Wu QL, Chen H, Yuan L, Yang Z, Huang LA. Predicting mortality in acute ischaemic stroke treated with mechanical thrombectomy: analysis of a multicentre prospective registry. BMJ Open 2021; 11:e043415. [PMID: 33795300 PMCID: PMC8021751 DOI: 10.1136/bmjopen-2020-043415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES We aimed to determine predictors of mortality within 90 days and develop a simple score for patients with mechanical thrombectomy (MT). DESIGN Analysis of a multicentre prospective registry. SETTING In six participating centres, patients who had an acute ischaemic stroke (AIS) treated by MT between March 2017 and May 2018 were documented prospectively. PARTICIPANTS 224 patients with AIS were treated by MT. RESULTS Of 224 patients, 49 (21.9%) patients died, and 87 (38.8%) were independent. Variables associated with 90-day mortality were age, previous stroke, admission National Institutes of Health Stroke Scale (NIHSS), fasting blood glucose and occlusion site. Logistic regression identified four variables independently associated with 90-day mortality: age ≥80 years (OR 3.26, 95% CI 1.45 to 7.33), previous stroke (OR 2.33, 95% CI 1.04 to 5.21), admission NIHSS ≥18 (OR 2.37, 95% CI 1.13 to 4.99) and internal carotid artery or basilar artery occlusion (OR 2.92, 95% CI 1.34 to 6.40). Using these data, we developed predicting 90-day mortality of AIS with MT (PRACTICE) score ranging from 0 to 6 points. The receiver operator curve analysis found that PRACTICE score (area under the curve (AUC)=0.744, 95% CI 0.669 to 0.820) was numerically better than iScore (AUC=0.661, 95% CI 0.577 to 0.745) and Predicting Early Mortality of Ischemic Stroke score (AUC=0.638, 95% CI 0.551 to 0.725) for predicting 90-day mortality. CONCLUSIONS We developed a simple score to estimate the 90-day mortality of patients who had an AIS treated with MT. But the score needs to be prospectively validated. TRIAL REGISTRATION NUMBER Chinese Clinical Trial Registry (ChiCTR-OOC-17013052).
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Affiliation(s)
- Hao Li
- Department of Neurology, Maoming People’s Hospital, Maoming, China
| | - Shi-sheng Ye
- Department of Neurology, Maoming People’s Hospital, Maoming, China
| | - Yuan-Ling Wu
- Department of Neurology, Longgang District People’s Hospital of Shenzhen, Shenzhen, China
| | - Sheng-Ming Huang
- Department of Neurology, Jinan University First Affiliated Hospital, Guangzhou, China
| | - Yong-Xin Li
- Department of Neurology, Shunde Hospital of Southern Medical University, Foshan, China
| | - Kui Lu
- Department of Neurology, Zhongshan City People’s Hospital, Zhongshan, China
| | - Jing-Bo Huang
- Department of Neurology, Maoming People’s Hospital, Maoming, China
| | - Lve Chen
- Department of Neurology, Shunde Hospital of Southern Medical University, Foshan, China
| | - Hong-Zhuang Li
- Department of Neurology, Shunde Hospital of Southern Medical University, Foshan, China
| | - Wen-Jun Wu
- Department of Neurology, Zhongshan City People’s Hospital, Zhongshan, China
| | - Zhi-Lin Wu
- Department of Integrated Intervention, Yunfu People’s Hospital, Yunfu, China
| | - Jian-Zhou Wu
- Department of Integrated Intervention, Yunfu People’s Hospital, Yunfu, China
| | - Wang-Tao Zhong
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Wen-Chuan Xian
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Feng Liao
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Tao-Hsin Tung
- Department of Enze Medical Research Center, Affiliated Taizhou Hospital of Wenzhou Medical College, Taizhou, China
| | - Qiao-Ling Wu
- Department of Neurology, Maoming People’s Hospital, Maoming, China
| | - Hai Chen
- Department of Neurology, Maoming People’s Hospital, Maoming, China
| | - Li Yuan
- Department of Neurology, Maoming People’s Hospital, Maoming, China
| | - Zhi Yang
- Department of Neurology, Maoming People’s Hospital, Maoming, China
| | - Li-An Huang
- Department of Neurology, Jinan University First Affiliated Hospital, Guangzhou, China
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Lin CX, Hu Z, Yan ZM, Li W, Chen YS, Zhao JH, Zhang LQ, Zhao B, Zhong WT, Feng D. Association between HTR2A T102C polymorphism and major depressive disorder: a meta-analysis in the Chinese population. Int J Clin Exp Med 2015; 8:20897-20903. [PMID: 26885016 PMCID: PMC4723861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 09/28/2015] [Indexed: 06/05/2023]
Abstract
Although a number of studies have been conducted on the association between HTR2A T102C polymorphism and major depressive disorder (MDD) in Chinese, this association remains elusive and controversial. To clarify the effects of HTR2A T102C polymorphism on the risk of MDD, a meta-analysis was performed in the Chinese population. Related studies were identified from PubMed, Springer Link, Ovid, Chinese Wanfang Data Knowledge Service Platform, Chinese National Knowledge Infrastructure (CNKI), and Chinese Biology Medicine (CBM) till 5 May 2015. The odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to estimate the strength of the associations. Statistical analyses were conducted with Version 10.0 STATA statistical software. A total of 12 case-control studies including 1444 MDD cases and 1445 controls were involved in this meta-analysis. Overall, no significant association with MDD risk was provided in the Chinese population (C vs. T: OR=0.97, 95% CI: 0.81-1.17, 95%; CC vs. TT: OR=0.95, 95% CI: 0.65-1.37; CC+TC vs. TT: OR=0.96, 95% CI: 0.75-1.12; CC vs. TT+TC: OR=0.94, 95% CI: 0.78-1.12). In subgroup analyses stratified by geographic area and source of controls, no significant association was found in any of the subgroups. In conclusion, this meta-analysis indicate that the HTR2A T102C polymorphism is not associated with susceptibility to MDD in Chinese population.
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Affiliation(s)
- Chun-Xia Lin
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac-Cerebral Vascular Disease, Guangdong Medical CollegeZhanjiang 524001, China
| | - Zhe Hu
- Department of Anesthesiology, Guangdong Medical CollegeZhanjiang 524001, China
| | - Ze-Ming Yan
- Department of Vascular Surgery, Thyroid and Mammary Gland Surgery, Guangdong Medical CollegeZhanjiang 524001, China
| | - Wen Li
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac-Cerebral Vascular Disease, Guangdong Medical CollegeZhanjiang 524001, China
| | - Yu-Sen Chen
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac-Cerebral Vascular Disease, Guangdong Medical CollegeZhanjiang 524001, China
| | - Jiang-Hao Zhao
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac-Cerebral Vascular Disease, Guangdong Medical CollegeZhanjiang 524001, China
| | - Liang-Qing Zhang
- Department of Anesthesiology, Guangdong Medical CollegeZhanjiang 524001, China
| | - Bin Zhao
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac-Cerebral Vascular Disease, Guangdong Medical CollegeZhanjiang 524001, China
| | - Wang-Tao Zhong
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac-Cerebral Vascular Disease, Guangdong Medical CollegeZhanjiang 524001, China
| | - Du Feng
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac-Cerebral Vascular Disease, Guangdong Medical CollegeZhanjiang 524001, China
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