生物活性 | |||
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描述 | Phorbol is a highly toxic diterpene, and it's esters have important biological properties. Phorbol esters can stimulate calcium- and phospholipid-dependent protein kinase, leads to a marked attenuation of the ability of alpha 1-receptor agonists such as norepinephrine to stimulate the turnover of inositol phospholipids. The effect of phorbol esters on norepinephrine-stimulated inositol phospholipid turnover and alpha 1-receptor phosphorylation showed the same rapid time course with a t1/2 less than 2 min[3]. Phorbol esters inhibited the alpha 1-adrenoceptor-induced response; sub-nanomolar concentrations decreased the transient frequency, and higher concentrations abolished the transients. Phorbol esters were less effective in decreasing the frequency of [Arg8]-vasopressin-induced transients, and the inhibition could be overcome by high [Arg8]vasopressin concentrations[4]. In addition, phorbol esters stimulate insulin receptor phosphorylation, inhibit insulin-induced receptor phosphorylation and insulin action[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 |
NCT01195272 | Rheumatoid Arthritis | Phase 4 | Completed | - | United Kingdom ... 展开 >> Liverpool, United Kingdom, L9 7AL 收起 << |
NCT03448250 | Breast Cancer | Not Applicable | Recruiting | March 2020 | Germany ... 展开 >> Technical University of Dortmund, Leibniz Research Centre for Working Environment and Human Factors Recruiting Dortmund, Germany, 44139 Contact: Carsten Watzl, PhD +492311084233 watzl@ifado.de University Medical Center Leipzig, Department of Medical Psychology and Medical Sociology, Section Psychosocial Oncology Active, not recruiting Leipzig, Germany, 04103 收起 << |
NCT02137876 | - | Withdrawn(Subject recruitment ... 展开 >>was unsuccessful.) 收起 << | - | United States, Illinois ... 展开 >> Northwestern University Comprehensive Transplant Center Chicago, Illinois, United States, 60611 收起 << |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.74mL 0.55mL 0.27mL |
13.72mL 2.74mL 1.37mL |
27.44mL 5.49mL 2.74mL |
参考文献 |
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