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| Content Provider | Springer Nature Link |
|---|---|
| Author | Juan, Wen Nakazawa, Mikio Watanabe, Kenichi Ma, Meilei Wahed, Mir II Hasegawa, Go Naito, Makoto Yamamoto, Tadashi Fuse, Koichi Kato, Kimiri Kodama, Makoto Aizawa, Yoshifusa |
| Copyright Year | 2003 |
| Abstract | The cardioprotective properties of quinapril, an angiotensin-converting enzyme inhibitor, were studied in a rat model of dilated cardiomyopathy. Twenty-eight days after immunization of pig cardiac myosin, four groups rats were given 0.2 mg/kg (Q0.2, n = 11), 2 mg/kg (Q2, n = 11) or 20 mg/kg (Q20, n = 11) of quinapril or vehicle (V, n = 15) orally once a day. After 1 month, left ventricular end-diastolic pressure (LVEDP), ±dP/dt, area of myocardial fibrosis, and myocardial mRNA expression of transforming growth factor (TGF)-β1, collagen-III and fibronectin were measured. Four of 15 (27%) rats in V and two of 11 (18%) in Q0.2 died. None of the animals in Q2 or Q20 died. The LVEDP was higher and ±dP/dt was lower in V (14.1 ± 2.0 mmHg and +2409 ± 150/−2318 ± 235 mmHg/sec) than in age-matched normal rats (5.0 ± 0.6 mmHg and +6173 ± 191/−7120 ± 74 mmHg/sec; all p < 0.01). After quinapril treatment, LVEDP was decreased and ±dP/dt was increased in a dose-dependent manner (10.8 ± 1.8 mmHg and +3211 ± 307/−2928 ± 390 mmHg/sec in Q0.2, 9.4 ± 1.5 mmHg and +2871 ± 270/−2966 ± 366 mmHg/sec in Q2, and 6.6 ± 1.5 mmHg, and +3569 ± 169/−3960 ± 203 mmHg/sec in Q20). Increased expression levels of TGF-β1, collagen-III and fibronectin mRNA in V were reduced in Q20. Quinapril improved survival rate and cardiac function in rats with dilated cardiomyopathy after myocarditis. Furthermore, myocardial fibrosis was regressed and myocardial structure returned to nearly normal in animals treated with quinapril. |
| Starting Page | 77 |
| Ending Page | 82 |
| Page Count | 6 |
| File Format | |
| ISSN | 03008177 |
| Journal | Molecular and Cellular Biochemistry |
| Volume Number | 251 |
| Issue Number | 1-2 |
| e-ISSN | 15734919 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2003-01-01 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Cardiology Medical Biochemistry Oncology Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Medicine Clinical Biochemistry Molecular Biology |
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