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Journal of Zhejiang University SCIENCE B 2006 Vol.7 No.3 P.228~234

10.1631/jzus.2006.B0228


Effects of combination of irbesartan and perindopril on calcineurin expression and sarcoplasmic reticulum Ca2+-ATPase activity in rat cardiac pressure-overload hypertrophy


Author(s):  Jiang Qing-Jun, Xu Geng, Mao Fei-Fei, Zhu You-Fa

Affiliation(s):  Department of Cardiology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China; more

Corresponding email(s):   xugeng@21cn.com

Key Words:  Angiotensin (Ang) II receptor antagonist, Angiotensin-converting enzyme inhibitor, Calcineurin, Sarcoplasmic reticulum Ca2+-ATPase, Pressure overload, Cardiac hypertrophy, Rat


Jiang Qing-Jun, Xu Geng, Mao Fei-Fei, Zhu You-Fa. Effects of combination of irbesartan and perindopril on calcineurin expression and sarcoplasmic reticulum Ca2+-ATPase activity in rat cardiac pressure-overload hypertrophy[J]. Journal of Zhejiang University Science B, 2006, 7(3): 228~234.

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author="Jiang Qing-Jun, Xu Geng, Mao Fei-Fei, Zhu You-Fa",
journal="Journal of Zhejiang University Science B",
volume="7",
number="3",
pages="228~234",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.B0228"
}

%0 Journal Article
%T Effects of combination of irbesartan and perindopril on calcineurin expression and sarcoplasmic reticulum Ca2+-ATPase activity in rat cardiac pressure-overload hypertrophy
%A Jiang Qing-Jun
%A Xu Geng
%A Mao Fei-Fei
%A Zhu You-Fa
%J Journal of Zhejiang University SCIENCE B
%V 7
%N 3
%P 228~234
%@ 1673-1581
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.B0228

TY - JOUR
T1 - Effects of combination of irbesartan and perindopril on calcineurin expression and sarcoplasmic reticulum Ca2+-ATPase activity in rat cardiac pressure-overload hypertrophy
A1 - Jiang Qing-Jun
A1 - Xu Geng
A1 - Mao Fei-Fei
A1 - Zhu You-Fa
J0 - Journal of Zhejiang University Science B
VL - 7
IS - 3
SP - 228
EP - 234
%@ 1673-1581
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.B0228


Abstract: 
Aim: To observe effects of angiotensin (Ang) II receptor antagonist (AT1) irbesartan and angiotensin-converting enzyme (ACE) inhibitor perindopril on rat myocardium calcineurin expression and sarcoplasmic reticulum Ca2+-ATPase activity in the model of pressure-overload cardiac hypertrophy. Methods: Forty male adult Sprague Dawley rats were divided into 5 groups. One group was treated by sham operation; four groups were myocardium hypertrophy cases caused by banding aortic above renal artery. Drugs were given one week after operation. Group 1: sham group, rats (n=8) were gavaged with normal saline 2 ml/(kg·d) (ig); Group 2: control group, rats (n=8) were treated with normal saline 2 ml/(kg·d) (ig); Group 3: rats (n=8) were given perindopril 2 mg/(kg·d) (ig); Group 4: rats (n=8) were treated with irbesartan 20 mg/(kg·d) (ig); Group 5: rats (n=8) were given irbesartan 20 mg/(kg·d) plus perindopril 2 mg/(kg·d) (ig). Morphometric determination, calcineurin expression and sarcoplasmic reticulum Ca2+-ATPase activity were done at the end of 6 week of drug intervention. Expression of calcineurin in myocardium was detected by immunohistochemistry. Results: Left ventricular mass index (LVMI), transverse diameter of myocardial cell (TDM), calcineurin activity were remarkably decreased after drug intervention and this decrease was most remarkable in the combination drug therapy group. sarcoplasmic reticulum Ca2+-ATPase activity was increased after drug intervention, especially in the combined drug therapy group. calcineurin expression in myocardium was remarkably decreased after drug intervention. LVMI was positively correlated with TDM and calcineurin, negatively correlated with sarcoplasmic reticulum Ca2+-ATPase. Conclusion: These data suggest that irbesartan and perindopril inhibit cardiac hypertrophy through the increased activity of sarcoplasmic reticulum Ca2+-ATPase and decreased expression of calcineurin. Their combination had better effects on regressing of ventricular hypertrophy.

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