PMID- 22873349 OWN - NLM STAT- MEDLINE DCOM- 20130320 LR - 20211021 IS - 1475-2840 (Electronic) IS - 1475-2840 (Linking) VI - 11 DP - 2012 Aug 8 TI - Effect of telmisartan on the expression of adiponectin receptors and nicotinamide adenine dinucleotide phosphate oxidase in the heart and aorta in type 2 diabetic rats. PG - 94 LID - 10.1186/1475-2840-11-94 [doi] AB - BACKGROUND: Diabetic cardiovascular disease is associated with decreased adiponectin and increased oxidative stress. This study investigated the effect of telmisartan on the expression of adiponectin receptor 2 (adipoR2) and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunits in the heart and the expression of adiponectin receptor 1 (adipoR1) in aorta in type 2 diabetic rats. METHODS: Type 2 diabetes was induced by high-fat and high-sugar diet and intraperitoneal injection of a low dose of streptozotocin (STZ). Heart function, adipoR2, p22phox, NOX4, glucose transporter 4(GLUT4), monocyte chemoattractant protein-1(MCP-1) and connective tissue growth factor (CTGF)in the heart, and adipoR1, MCP-1 and nuclear factor kappa B (NF-kappaB) in aorta were analyzed in controls and diabetic rats treated with or without telmisartan (5mg/kg/d) by gavage for 12 weeks. RESULTS: Heart function, plasma and myocardial adiponectin levels, the expression of myocardial adipoR2 and GLUT4 were significantly decreased in diabetic rats (P <0.05). The expression of myocardial p22phox, NOX4, MCP-1, and CTGF was significantly increased in diabetic rats (P <0.05). The expression of adipoR1 was decreased and the expression of MCP-1 and NF-kappaB was increased in the abdominal aorta in diabetic rats (P <0.05). Telmisartan treatment significantly attenuated these changes in diabetic rats (P <0.05). CONCLUSIONS: Our results suggest that telmisartan upregulates the expression of myocardial adiponectin, its receptor 2 and GLUT4. Simultaneously, it downregulates the expression of myocardial p22phox, NOX4, MCP-1, and CTGF, contributing so to the improvement of heart function in diabetic rats. Telmisartan also induces a protective role on the vascular system by upregulating the expression of adipoR1 and downregulating the expression of MCP-1 and NF-kappaB in the abdominal aorta in diabetic rats. FAU - Guo, Zhixin AU - Guo Z AD - Department of Endocrinology, Second Hospital, Shanxi Medical University, 382 Wuyi Road, Taiyuan, Shanxi, P.R. China. zhxguo1966@yahoo.com.cn FAU - Zhang, Rong AU - Zhang R FAU - Li, Jiawei AU - Li J FAU - Xu, Guojun AU - Xu G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120808 PL - England TA - Cardiovasc Diabetol JT - Cardiovascular diabetology JID - 101147637 RN - 0 (Adiponectin) RN - 0 (Adipoq protein, rat) RN - 0 (Angiotensin II Type 1 Receptor Blockers) RN - 0 (Benzimidazoles) RN - 0 (Benzoates) RN - 0 (CCN2 protein, mouse) RN - 0 (Ccl2 protein, rat) RN - 0 (Chemokine CCL2) RN - 0 (Glucose Transporter Type 4) RN - 0 (NF-kappa B) RN - 0 (RNA, Messenger) RN - 0 (Receptors, Adiponectin) RN - 0 (Slc2a4 protein, rat) RN - 0 (adiponectin receptor 1, rat) RN - 0 (adiponectin receptor 2, rat) RN - 139568-91-5 (Connective Tissue Growth Factor) RN - EC 1.6.3.- (NADPH Oxidase 4) RN - EC 1.6.3.- (NADPH Oxidases) RN - EC 1.6.3.- (Nox4 protein, rat) RN - EC 1.6.3.1 (Cyba protein, rat) RN - U5SYW473RQ (Telmisartan) SB - IM MH - Adiponectin/metabolism MH - Angiotensin II Type 1 Receptor Blockers/*pharmacology MH - Animals MH - Aorta, Abdominal/*drug effects/metabolism/pathology MH - Benzimidazoles/*pharmacology MH - Benzoates/*pharmacology MH - Chemokine CCL2/metabolism MH - Connective Tissue Growth Factor/metabolism MH - Diabetes Mellitus, Experimental/*drug therapy/enzymology/genetics/pathology MH - Diabetes Mellitus, Type 2/*drug therapy/enzymology/genetics/pathology MH - Gene Expression Regulation MH - Glucose Transporter Type 4/metabolism MH - Male MH - Myocardium/*enzymology/pathology MH - NADPH Oxidase 4 MH - NADPH Oxidases/genetics/*metabolism MH - NF-kappa B/metabolism MH - RNA, Messenger/metabolism MH - Rats MH - Rats, Wistar MH - Receptors, Adiponectin/*drug effects/genetics/*metabolism MH - Telmisartan PMC - PMC3471013 EDAT- 2012/08/10 06:00 MHDA- 2013/03/21 06:00 PMCR- 2012/08/08 CRDT- 2012/08/10 06:00 PHST- 2012/07/19 00:00 [received] PHST- 2012/07/23 00:00 [accepted] PHST- 2012/08/10 06:00 [entrez] PHST- 2012/08/10 06:00 [pubmed] PHST- 2013/03/21 06:00 [medline] PHST- 2012/08/08 00:00 [pmc-release] AID - 1475-2840-11-94 [pii] AID - 10.1186/1475-2840-11-94 [doi] PST - epublish SO - Cardiovasc Diabetol. 2012 Aug 8;11:94. doi: 10.1186/1475-2840-11-94.