title: Role of osteoprotegerin and its gene polymorphisms in the occurrence of left ventricular hypertrophy in essential hypertensive patients.
abstract: The aim of the study was to investigate the role of osteoprotegerin (OPG) in left ventricular hypertrophy (LVH) development in patients with essential hypertension (EH). A total of 1092 patients diagnosed with EH were recruited. The LVHs were determined and OPG gene polymorphisms were genotyped. Patients with LVH had a significantly higher mean serum OPG level than those without LVH. The 1181CC genotype carriers had significantly lower risk for LVH compared with GC and GG genotype carriers. The serum OPG level and OPG 1181 G>C polymorphism were found to be independent risk factors for the occurrence of LVH in hypertensive patients. In vitro study shows that OPG overexpression upregulates cell surface size, protein synthesis per cell, and hypertrophy- and fibrosis-related proteins in both cardiomyocytes and cardiac fibroblasts, whereas OPG inhibition can abolish the above-mentioned changes. Consistent with the in vitro data, our in vivo study revealed that the OPG administration induced the LVH in hypertensive rats. This study is the first to report the close association between OPG and LVH development in EH patients and the regulatory effect of OPG on cardiomyocytes and cardiac fibroblasts.
authors.affiliation: From the Department of Cardiology, TheThird Affiliated Hospital of Southern Medical University, No.183, West Zhongshan Ave, Tianhe District, Guangzhou (AS, DY, TL, DZ, TZ); Department of Cardiology, Hangzhou Hospital, Nanjing Medical University, 261 huasha Road, Hangzhou (XH); and Department of Critical Care Medicine, Affiliated Hospital of Guangdong Medical College, No. 57 Southern Renmin Avenue, Zhanjiang (LD), Guangdong, China.
authors.forename: Anna
authors.initials: A
authors.lastname: Shen
authors.forename: Xuwei
authors.initials: X
authors.lastname: Hou
authors.forename: Deguang
authors.initials: D
authors.lastname: Yang
authors.forename: Tingrong
authors.initials: T
authors.lastname: Liu
authors.forename: Dezhong
authors.initials: D
authors.lastname: Zheng
authors.forename: Liehua
authors.initials: L
authors.lastname: Deng
authors.forename: Tao
authors.initials: T
authors.lastname: Zhou
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D009320:Atrial Natriuretic Factor / Q000378:metabolism; D016022:Case-Control Studies; D002478:Cells, Cultured; D005260:Female; D005347:Fibroblasts / Q000378:metabolism; D005787:Gene Frequency; D005838:Genotype; D006352:Heart Ventricles / Q000473:pathology; D006579:Heterozygote; D006801:Humans; D006973:Hypertension / Q000097:blood*; D017379:Hypertrophy, Left Ventricular / Q000097:blood / Q000235:genetics* / Q000473:pathology; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D032383:Myocytes, Cardiac / Q000378:metabolism; D053244:Osteoprotegerin / Q000097:blood / Q000235:genetics*; D011110:Polymorphism, Genetic; D034741:RNA, Small Interfering; D017207:Rats, Sprague-Dawley; D012307:Risk Factors; D019210:Troponin I / Q000378:metabolism; D024723:Ventricular Myosins / Q000378:metabolism
chemical_list: D053244:Osteoprotegerin; D034741:RNA, Small Interfering; D019210:Troponin I; D009320:Atrial Natriuretic Factor; D024723:Ventricular Myosins