Rolipram, a pde4 inhibitor, enhances the inotropic effect of rat heart by activating serca2a
文献类型：期刊论文
| 作者 | Huang, Huili1; Xie, Ming1; Gao, Li1; Zhang, Wenhui1; Zhu, Xiaojia1; Wang, Yuwei1; Li, Wei1; Wang, Rongrong2,3; Chen, Kesu4; Boutjdir, Mohamed5,6,7 |
| 刊名 | Frontiers in pharmacology
 |
| 出版日期 | 2019-03-22 |
| 卷号 | 10页码:12 |
| 关键词 | Pde4 Rolipram P-v loop Ca2+ transient Serca2a |
| ISSN号 | 1663-9812 |
| DOI | 10.3389/fphar.2019.00221 |
| 通讯作者 | Chen, long(longchcn@njucm.edu.cn) |
| 英文摘要 | This study was designed to investigate the hemodynamic effect of rolipram, a phosphodiesterase type 4 (pde4) inhibitor, in normal rat hearts both in vivo and in vitro and its underlying mechanism. the pressure-volume loop, isolated heart, and ca2+ transients triggered by field stimulation or caffeine were used to analyze the hemodynamic mechanism of rolipram. the results demonstrated that rolipram (3 mg/kg, ip) significantly increased the in vivo rat heart contractility by enhancing stroke work, cardiac output, stroke volume, end-systolic volume, end-diastolic volume, end-systolic pressure, heart rate, ejection fraction, peak rate of rise of left pressure (+dp/dt(max)), the slopes of end-systolic pressure-volume relationship (slope of espvr) named as left ventricular end-systolic elastance, and reduced the slopes of end-diastolic pressure-volume relationship (slope of edpvr). meanwhile, the systolic blood pressure, diastolic blood pressure, and pulse pressure were significantly enhanced by rolipram. also, rolipram deviated normal ventricular-arterial coupling without changing the arterial elastance. furthermore, rolipram (0.1, 1, 10 mu m) also exerted positive inotropic effect in isolated rat hearts by increasing the left ventricular development pressure, and +dp/dt(max) in non-paced and paced modes. rolipram (10 mu m) increased the serca2a activity, ca(2+ )content, and ca(2+ )leak rate without changing diastolic ca2+ level. rolipram had significant positive inotropic effect with less effect on peripheral vascular elastance and its underlying mechanism was mediated by increasing serca2a activity. pde4 inhibition by rolipram resulted in a positive inotropic effect and might serve as a target for developing agents for the treatment of heart failure in clinical settings. |
| WOS关键词 | CYCLIC-NUCLEOTIDE PHOSPHODIESTERASE ; CA2+ RELEASE ; CAMP ; MICRODOMAINS |
| WOS研究方向 | Pharmacology & Pharmacy |
| WOS类目 | Pharmacology & Pharmacy |
| 语种 | 英语 |
| WOS记录号 | WOS:000462159200001 |
| 出版者 | FRONTIERS MEDIA SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2372627 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Chen, Long |
| 作者单位 | 1.Nanjing Univ Chinese Med, Natl Stand Lab Pharmacol Chinese Mat Med, Sch Pharm, Nanjing, Jiangsu, Peoples R China 2.Dalian Inst Chem Phys, Dalian, Peoples R China 3.Chinese Acad Sci, Biomed Innovat Inst China Med City, Taizhou, Peoples R China 4.Nanjing Mil Command Reg, Dept Resp, Inpatient Wards Senior Cadres, Nanjing Gen Hosp, Nanjing, Jiangsu, Peoples R China 5.VA New York Harbor Healthcare Syst, New York, NY USA 6.Suny Downstate Med Ctr, New York, NY USA 7.NYU, Sch Med, New York, NY USA 8.Inst Chinese Med Taizhou China Med City, Taizhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Huili,Xie, Ming,Gao, Li,et al. Rolipram, a pde4 inhibitor, enhances the inotropic effect of rat heart by activating serca2a[J]. Frontiers in pharmacology,2019,10:12. |
| APA | Huang, Huili.,Xie, Ming.,Gao, Li.,Zhang, Wenhui.,Zhu, Xiaojia.,...&Chen, Long.(2019).Rolipram, a pde4 inhibitor, enhances the inotropic effect of rat heart by activating serca2a.Frontiers in pharmacology,10,12. |
| MLA | Huang, Huili,et al."Rolipram, a pde4 inhibitor, enhances the inotropic effect of rat heart by activating serca2a".Frontiers in pharmacology 10(2019):12. |
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来源：大连化学物理研究所
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