کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8667512 | 1578004 | 2018 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Role of angiotensin II type 2 receptor during electrophysiological remodeling of left ventricular hypertrophic myocardium in spontaneously hypertensive rats
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
سیستم های درون ریز و اتونومیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Role of angiotensin II type 2 receptor during electrophysiological remodeling of left ventricular hypertrophic myocardium in spontaneously hypertensive rats Role of angiotensin II type 2 receptor during electrophysiological remodeling of left ventricular hypertrophic myocardium in spontaneously hypertensive rats](/preview/png/8667512.png)
چکیده انگلیسی
The objective was to investigate the role of angiotensin II type 2 receptor during electrophysiological remodeling of left ventricular hypertrophic myocardium in spontaneously hypertensive rats (SHRs). A total of 36, aged 10 weeks, male SHRs were divided into three groups: control, valsartan, and valsartan + PD123319 groups (n = 12 in each). The systolic blood pressure, left ventricular mass index, ventricular effective refractory period, and ventricular fibrillation threshold (VFT) were also measured after 8 weeks. At the same time, INa, ICaL, Ito, and membrane capacitance were measured in left ventricular myocytes by whole-cell patch-clamp. The VFT of valsartan was higher than that of control (valsartan vs. control: 17.4 ± 0.6 mA vs. 15.8 ± 0.5 mA, P < .05). The VFT of valsartan was higher than that of valsartan + PD123319 (valsartan vs. valsartan + PD123319: 17.4 ± 0.6 mA vs. 16.6 ± 0.9 mA, P < .05). The density of Ito of valsartan was higher than that of control (valsartan vs. control: 14.7 ± 0.42 pA/pF vs. 11.2 ± 0.15 pA/pF, P < .05). The density of Ito of valsartan was higher than that of valsartan + PD123319 (valsartan vs. valsartan + PD123319: 14.7 ± 0.42 pA/pF vs. 13.6 ± 0.30 pA/pF, P < .05). The density of ICaL of valsartan was lower than that of control (valsartan vs. control: â4.6 ± 0.2 pA/pF vs. â6.9 ± 0.1 pA/pF, P < .05). The density of ICaL of valsartan was lower than that of valsartan + PD123319 (valsartan vs. valsartan + PD123319: â4.6 ± 0.2 pA/pF vs. â5.4 ± 0.1 pA/pF, P < .05). These results demonstrated that the stimulation of angiotensin II type 2 receptor improved electrophysiological remodeling of left ventricular hypertrophic myocardium in SHR.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the American Society of Hypertension - Volume 12, Issue 1, January 2018, Pages 58-65
Journal: Journal of the American Society of Hypertension - Volume 12, Issue 1, January 2018, Pages 58-65
نویسندگان
Ying PhD, Wei-Qing MD, Kai-Pan MD, Ming PhD, Gui-Hua PhD, Zhi-Bin MD,