Atriopeptin II‐induced relaxation of rabbit aorta is potentiated by M&B 22,948 but not blocked by haemoglobin

Atriopeptin II‐induced relaxation of rabbit aorta is potentiated by M&B 22,948 but not blocked by haemoglobin
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M&B 22,948 增强了 Atriopeptin II 诱导的兔主动脉松弛,但不被血红蛋白阻断

DOI:
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发表时间:
1986
影响因子:
7.3
通讯作者:
D. G. White
D. G. White
中科院分区:
医学2区
文献类型:
--
作者:
W. Martin;R. Morgan;Jerry A. Smith;D. G. White

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我们研究了血红蛋白(抑制血管对可溶性鸟苷酸环化酶刺激的反应)和M&B 22,948(选择性抑制环GMP磷酸二酯酶)对心房利钠肽、心房肽肽II(刺激颗粒鸟苷酸环化酶)在兔主动脉诱导的松弛的影响。2. M&B 22,948 (100 μM)预处理可使心房肽肽诱导的兔主动脉内皮剥脱环松弛增强2.3倍。3血红蛋白(10 μM)预处理对心房肽肽诱导的兔主动脉内皮剥脱环松弛无影响,且其环GMP含量增加10.9倍。M&B 22,948的增强作用表明,环GMP在介导心房肽II诱导的兔主动脉血管扩张中起着因果作用。血红蛋白无法阻断阿特里肽诱导的环状GMP升高,表明它不能阻断颗粒鸟苷酸环化酶的刺激。因此,含铁血红素受体位点不太可能参与鸟苷酸环化酶颗粒形式的激活,因为它与可溶性鸟苷酸环化酶有关。
1 We examined the effects of haemoglobin (which inhibits the vascular responses to stimulation of soluble guanylate cyclase) and of M&B 22,948 (which selectively inhibits cyclic GMP phosphodiesterase) on the relaxation induced in rabbit aorta by the atrial natriuretic peptide, atriopeptin II (which stimulates particulate guanylate cyclase). 2 Pretreatment with M&B 22,948 (100 μM) produced a 2.3 fold potentiation of atriopeptin II‐induced relaxation of endothelium‐denuded rings of rabbit aorta. 3 Pretreatment with haemoglobin (10 μM) had no effect on the relaxation or the 10.9 fold increase in cyclic GMP content induced by atriopeptin II in endothelium‐denuded rings of rabbit aorta. 4 The potentiation by M&B 22,948 suggests a causal role for cyclic GMP in mediating atriopeptin II‐induced vasodilatation of rabbit aorta. 5 The inability of haemoglobin to block the atriopeptin II‐induced rise in cyclic GMP suggests that it does not block stimulation of particulate guanylate cyclase. Thus, it is unlikely that a ferrous haem‐containing receptor site is involved in the activation of the particulate form of guanylate cyclase as it is with soluble guanylate cyclase.
心房钠尿因子引起内皮依赖性松弛并激活血管平滑肌中的颗粒鸟苷酸环化酶。
DOI: 10.1073/pnas.81.23.7661
发表时间: 1984
影响因子: 11.1
作者:
Winquist,RJ;Faison,EP;Waldman,SA;Schwartz,K;Murad,F;Rapoport,RM
通讯作者: Rapoport,RM
DOI: --
发表时间: 1985-03
期刊: The Journal of pharmacology and experimental therapeutics
影响因子: --
作者:
W. Martin;G. Villani;D. Jothianandan;R. Furchgott
通讯作者: W. Martin;G. Villani;D. Jothianandan;R. Furchgott
Atriopeptin II 升高环 GMP,激活环 GMP 依赖性蛋白激酶并导致大鼠胸主动脉松弛。
DOI: 10.1016/0167-4889(85)90124-7
发表时间: 1985
期刊: Biochimica et biophysica acta
影响因子: --
作者:
Fiscus,RR;Rapoport,RM;Waldman,SA;Murad,F
通讯作者: Murad,F
心钠素、硝普钠和乙酰胆碱对大鼠主动脉环 GMP 水平和舒张的影响。
DOI: 10.1016/0014-2999(85)90694-6
发表时间: 1985
影响因子: 5
作者:
Rapoport,RM;Waldman,SA;Schwartz,K;Winquist,RJ;Murad,F
通讯作者: Murad,F
氰化物对硝基血管舒张剂诱导的大鼠主动脉舒张、环鸟苷酸积累和鸟苷酸环化酶激活的影响。
DOI: 10.1016/0014-2999(84)90369-8
发表时间: 1984
影响因子: 5
作者:
Rapoport,RM;Murad,F
通讯作者: Murad,F