Neurotransmission of the antidepressant-like effects of the growth hormone-releasing hormone antagonist MZ-4-71
Neurotransmission of the antidepressant-like effects of the growth hormone-releasing hormone antagonist MZ-4-71
复制标题
生长激素释放激素拮抗剂 MZ-4-71 的抗抑郁样作用的神经传递
DOI：
10.1016/j.bbr.2011.12.022
复制
发表时间：
2012
影响因子：
2.7
通讯作者：
G. Telegdy
中科院分区：
文献类型：
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作者：
M. Tanaka;A. Schally;G. Telegdy
MZ-4-71 is an antagonist of growth hormone–releasing hormone (GH–RH) which suppresses the secretion of GH–RH. It has been shown that MZ-4-71 has antidepressive-like effects in a modified forced swimming test (FST) in mice, exerts anxiolytic effects in an elevated plus maze test, improves memory consolidation in passive avoidance learning, and corrects the impairment of memory consolidation caused by β-amyloid 25–35in mice. However, little is known about the mechanisms of action of MZ-4-71 on brain functions. The involvement of the adrenergic, serotonergic, cholinergic, dopaminergic or GABA-ergic receptors in the antidepressant-like action of MZ-4-71 (1.0μg/2μl, intracerebroventricular (i.c.v.)) was studied in a modified mouse forced swimming test (FST). Mice were pretreated with a non-selective α-adrenergic receptor antagonist, phenoxybenzamine, an α1/α2β-adrenergic receptor antagonist prazosin, an α2-adrenergic receptor antagonist, yohimbine, a β-adrenergic receptor antagonist, propranolol, a mixed 5-HT1/5-HT2 serotonergic receptor antagonist methysergide, a non-selective 5-HT2 serotonergic receptor antagonist, cyproheptadine, a non-selective muscarinic acetylcholine receptor antagonist, atropine, a D2, D3, D4 dopamine receptor antagonist, haloperidol or a γ-aminobutyric acid subunit A (GABA-A) receptor antagonist bicuculline. Phenoxybenzamine, prazosin, methysergide, cyproheptadine and atropine prevented the effects of MZ-4-71 on the immobility, the climbing and the swimming times. Yohimbine, propranolol, haloperidol and bicuculline did not change the effects of MZ-4-71. The results demonstrated that the antidepressant-like effects of MZ-4-71 in this modified mouse FST are mediated, at least in part, by the an interaction of the α1-adrenergic, 5-HT1/5-HT2 serotonergic, and muscarinic acetylcholine receptors.
生长激素释放激素 (GHRH) 拮抗剂对过度表达人类 GHRH 基因的转基因小鼠（一种肢端肥大症动物模型）中 GH 和胰岛素样生长因子 I 水平的影响。
DOI：
10.1210/endo.138.11.5498
发表时间：
1997
期刊：
Endocrinology.
影响因子：
--
作者：
Kovacs,M;Kineman,RD;Schally,AV;Zarandi,M;Groot,K;Frohman,LA
通讯作者：
Frohman,LA