title: Cardioprotective effect of valsartan in mice with short-term high-salt diet by regulating cardiac aquaporin 1 and angiogenic factor expression.
abstract: Hypertension is the most common risk factor for various cardiovascular and cerebrovascular diseases that affects approximately 61 million, or 25% of the population in United States. The dietary salt intake is one of the most important but modifiable factors for hypertension. In the current study, we aim to elucidate the role of aquaporin 1 in high-salt-induced hypertension and cardiac injuries and whether angiotensin II receptor blocker valsartan could ameliorate the effect of high salt on blood pressure. Mice were fed with normal diet, high-salt diet in the presence or absence of valsartan for 4 weeks. The body weight gain, feeding behavior, blood pressure, and cardiac pathology changes were monitored after 4 weeks. The expression of aquaporin 1, vascular endothelial growth factor, transforming growth factor β1, and basic fibroblast growth factor were analyzed using quantitative real-time polymerase chain reaction, Western blot, and immunohistochemical staining. Valsartan partially reversed the effects of high-salt diet on hypertension, cardiac injuries such as fibrosis and inflammatory cell infiltration, and inhibition of aquaporin 1 and angiogenic factors; valsartan alone did not exert such effects. The current data demonstrated that the reduction of cardiac aquaporin 1 and angiogenic factor expression level might be associated with high-salt-induced hypertension and cardiac injuries in mice, which could be ameliorated by angiotensin II receptor blocker treatment.
authors: Laboratory Medical College, Jilin Medical College, Jilin, PR China. Electronic address: jiangyongpost@sina.com.
authors: Yong
authors: Y
authors: Jiang
authors: Laboratory Medical College, Jilin Medical College, Jilin, PR China.
authors: Hui-Yan
authors: HY
authors: Wang
authors: Department of Applied Chemistry and Biological Engineering, Northeast Dianli University, Jilin, PR China.
authors: Sheng
authors: S
authors: Zheng
authors: Department of Surgery, Jilin Medical College, Jilin, PR China.
authors: Shang-Qiang
authors: SQ
authors: Mu
authors: Laboratory Medical College, Jilin Medical College, Jilin, PR China.
authors: Meng-Ni
authors: MN
authors: Ma
authors: Laboratory Medical College, Jilin Medical College, Jilin, PR China.
authors: Xin
authors: X
authors: Xie
authors: Laboratory Medical College, Jilin Medical College, Jilin, PR China.
authors: Yang-Yang
authors: YY
authors: Zhang
authors: Laboratory Medical College, Jilin Medical College, Jilin, PR China.
authors: Chun-Xue
authors: CX
authors: Zhang
authors: Department of Surgery, Jilin Medical College, Jilin, PR China. Electronic address: jlmpc.cjh@163.com.
authors: Jian-Hui
authors: JH
authors: Cai
mesh_terms: D042501:Angiogenic Proteins / Q000235:genetics / Q000378:metabolism*; D047228:Angiotensin II Type 1 Receptor Blockers / Q000494:pharmacology*; D000818:Animals; D000959:Antihypertensive Agents / Q000494:pharmacology*; D051398:Aquaporin 1 / Q000235:genetics / Q000378:metabolism*; D001794:Blood Pressure / Q000187:drug effects; D016207:Cytokines / Q000378:metabolism; D019610:Cytoprotection; D004195:Disease Models, Animal; D005247:Feeding Behavior / Q000187:drug effects; D005355:Fibrosis; D006331:Heart Diseases / Q000209:etiology / Q000235:genetics / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology / Q000517:prevention & control*; D006973:Hypertension / Q000188:drug therapy* / Q000209:etiology / Q000378:metabolism / Q000503:physiopathology; D008297:Male; D008810:Mice, Inbred C57BL; D032383:Myocytes, Cardiac / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology; D017673:Sodium Chloride, Dietary; D013997:Time Factors; D000068756:Valsartan / Q000494:pharmacology*; D015430:Weight Gain / Q000187:drug effects
chemical_list: D042501:Angiogenic Proteins; D047228:Angiotensin II Type 1 Receptor Blockers; D000959:Antihypertensive Agents; C496021:Aqp1 protein, mouse; D016207:Cytokines; D017673:Sodium Chloride, Dietary; D051398:Aquaporin 1; D000068756:Valsartan
keywords: Angiotensin II receptor blocker; Aquaporin 1; Cardiac injury; High salt; Hypertension; Valsartan