生物活性 | |||
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描述 | Reserpine is an inhibitor of the vesicular monoamine transporter 2 (VMAT2). Reserpine displays a significant effect on the density of dopamine D1 receptors (F2,12=8.81, p<0.01) in the rat striatum. The affinity (Kd) for the dopamine D1 and D2 receptors during withdrawal from acute and chronic administration of reserpine is not change. Withdrawal (48 h) from chronic (14-day) but not acute Reserpine administration in a dose of 0.2 mg/kg i.p. produces a significant reduction of the immobility time (F2,18=3.68, p<0.05), but increases the climbing time (F2,18=4.48, p<0.02), and does not change the swimming time (F2,18=1.78; NS) in the forced swim test (FST) in rats[3]. IC50 values of 43.9 and 54.9 μM are obtained after 1 day of treatment with Reserpine in JB6 P+ and HepG2-C8 cells, respectively. Reserpine induces luciferase activity in a dose-dependent manner at concentrations ranging from 5 to 50 μM, and no significant induction is observed at concentrations lower than 5 μM. Results demonstrate that Reserpine (2.5 to 10 μM) also increases the protein expression of Nrf2, HO-1, and NQO1. Reserpine at concentrations of 2.5 to 10 μM decreases the mRNA expression of DNMT1, DNMT3a, and DNMT3b in a concentration-dependent manner in JB6 P+ cells after 7 days of treatment. Reserpine at 10 μM generates a significant difference for DNMT3a expression (p<0.05)[4]. Reserpine at a dose of 5 mg/kg body weight produces significant increase in the urinary excretion profile of vanillylmandelic acid (VMA) compare to control animals. The amount of 5-hydroxyindoleacetic acid (5-HIAA) excreted in animals treated with Reserpine is found to be more than in the control. Dose dependent hypotension is observed with Reserpine. Reserpine at doses of 0.5, 1, 5, 10 and 15 μg/kg produce significant (p<0.01) reduction in blood pressure compare to control[5]. |
临床研究 | |||||
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NCT号 | 适应症或疾病 | 临床期 | 招募状态 | 预计完成时间 | 地点 |
NCT00000620 | Atherosclerosis ... 展开 >> Cardiovascular Diseases Hypercholesterolemia Hypertension Diabetes Mellitus, Type 2 Diabetes Mellitus Coronary Disease 收起 << | Phase 3 | Completed | - | United States, Minnesota ... 展开 >> Minneapolis Medical Research Foundation Minneapolis, Minnesota, United States, 55404 United States, New York Columbia University New York, New York, United States, 10027 United States, North Carolina Wake Forest University Winston-Salem, North Carolina, United States, 27106 United States, Ohio Case Western Reserve University Cleveland, Ohio, United States, 44106 United States, Tennessee Veterans Affairs Memphis, Tennessee, United States, 38104 United States, Washington University of Washington Seattle, Washington, United States, 98195 Canada, Ontario McMaster University Hamilton, Ontario, Canada 收起 << |
NCT00684489 | Hypertension | Not Applicable | Completed | - | - |
NCT00000620 | - | Completed | - | - |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
1.64mL 0.33mL 0.16mL |
8.21mL 1.64mL 0.82mL |
16.43mL 3.29mL 1.64mL |
参考文献 |
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