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Hypothesized and found mechanisms for potentiation of bradykinin actions

机译:假设并发现了缓激肽作用增强的机制

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摘要

Potentiation of hormone actions can occur by different mechanisms, including inhibition of degrading enzymes, interaction with the hormone receptor leading to stabilization of bioactive conformation or leading to receptor homo- and hetero-oligomerization, receptor phosphoryla-tion and dephosphorylation or can occur by directly influencing the signal transduction and ion channels. In this review the potentiation of bradykinin actions in different systems by certain compounds will be reviewed. Despite many long years of experimental research and investigation the mechanisms of potentiating action remain not fully understood. One of the most contradictory findings are the distinct differences between the inhibition of the angiotensin I-converting enzyme and the potentiation of the bradykinin induced smooth muscle reaction. Contradictory findings and hypothesized mechanisms in the literature are discussed in this review and in some cases compared to own results. Investigation of potentiating actions was extended from hypotension, smooth muscle reaction and cellular actions to activation of immu-nocompetent cells. In our opinion the potentiation of bradykinin action can occur by different mechanisms, depending on the system and the applied potentiating factor used.
机译:激素作用的增强可以通过不同的机制发生,包括抑制降解酶,与激素受体的相互作用导致生物活性构象的稳定或导致受体的均一和异寡聚,受体磷酸化和去磷酸化,或者可以通过直接影响而发生信号转导和离子通道。在这篇综述中,将综述某些化合物在不同系统中缓激肽作用的增强作用。尽管进行了多年的实验研究和调查,但增强作用的机制仍未完全了解。最矛盾的发现之一是血管紧张素I转换酶的抑制作用与缓激肽诱导的平滑肌反应增强之间的明显差异。本文中讨论了矛盾的发现和假设的机制,并在某些情况下与自己的结果进行了比较。增强作用的研究从低血压,平滑肌反应和细胞作用扩展到免疫原性细胞的活化。我们认为,缓激肽作用的增强作用可以通过不同的机制发生,具体取决于系统和所使用的增强因子。

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