Gonadal steroid modulation of oxytocin and vasopressin gene expression in the hypothalamus of the osmotically stimulated rat.

Gonadal steroid modulation of oxytocin and vasopressin gene expression in the hypothalamus of the osmotically stimulated rat.
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性腺类固醇对渗透压刺激大鼠下丘脑中催产素和加压素基因表达的调节。

DOI:
10.1210/endo.133.6.8243294
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发表时间:
1993
期刊:
影响因子:
4.8
通讯作者:
J. Amico
J. Amico
中科院分区:
医学2区
文献类型:
--
作者:
R. Crowley;J. Amico

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我们研究了性腺类固醇对渗透刺激大鼠室旁核和视上核中催产素 (OT) 和加压素 (AVP) 细胞质 mRNA 表达的调节作用。我们对完整和性腺切除的雌性和雄性 Sprague-Dawley 大鼠长期口服盐负荷(2%氯化钠溶液,持续 5 天),并测量血清钠、体重、垂体 OT 和 AVP 免疫反应性含量,以及下丘脑细胞质 OT 和 AVP mRNA 转录物的大小和丰度。接受渗透压激发的完整和性腺切除的大鼠出现了相当程度的高钠血症和体重减轻以及垂体后叶储存的 OT 和 AVP 的消耗。高渗透压诱导完整和去腺动物中 OT 和 AVP 转录物的延长,但只有完整大鼠的下丘脑细胞质 OT 和 AVP mRNA 浓度在这种刺激下增强。用性腺类固醇替代可恢复高渗性腺切除动物中 OT 和 AVP 基因表达的上调。研究结果支持性腺类固醇在渗透刺激过程中对下丘脑 OT 和 AVP 基因表达的调节作用。
We investigated the modulatory role of gonadal steroids on the expression of oxytocin (OT) and vasopressin (AVP) cytoplasmic mRNAs in the paraventricular nucleus and supraoptic nucleus of the osmotically stimulated rat. We chronically administered an oral salt load (2% sodium chloride solution for 5 days) to intact and gonadectomized female and male Sprague-Dawley rats and measured serum sodium, body weight, pituitary content of OT and AVP immunoreactivities, and size and abundance of hypothalamic cytoplasmic OT and AVP mRNA transcripts. Intact and gonadectomized rats that were administered an osmotic challenge developed comparable degrees of hypernatremia and loss of body weight as well as depletion of posterior pituitary stores of OT and AVP. Hyperosmolality induced elongation of the OT and AVP transcripts in intact and gonadectomized animals, but only intact rats had enhanced hypothalamic cytoplasmic OT and AVP mRNA concentrations to this stimulus. Replacement with gonadal steroids restored the up-regulation in OT and AVP gene expression in gonadectomized animals rendered hyperosmolar. The findings support a modulatory role for gonadal steroids in hypothalamic OT and AVP gene expression during osmotic stimulation.
协调下丘脑强啡肽原和加压素原 mRNA 的表达与渗透刺激。
DOI: 10.1159/000124649
发表时间: 1986
期刊: Neuroendocrinology
影响因子: 4.1
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Sherman,TG;Civelli,O;Douglass,J;Herbert,E;Watson,SJ
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成熟和发育的下丘脑中卵巢类固醇对神经元催产素 mRNA 的调节。
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雌二醇对雄性和雌性大鼠下丘脑腹内侧核中催产素结合的调节。
DOI: 10.1159/000125221
发表时间: 1989
期刊: Neuroendocrinology
影响因子: 4.1
作者:
Coirini,H;Johnson,AE;McEwen,BS
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DOI: 10.1210/endo-124-1-207
发表时间: 1989
期刊: Endocrinology
影响因子: 4.8
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渗透压和容量刺激在大鼠神经垂体分泌调节中的相互作用。
DOI: 10.1152/ajpregu.1986.250.2.r267
发表时间: 1986
期刊: The American journal of physiology
影响因子: --
作者:
Stricker,EM;Verbalis,JG
通讯作者: Verbalis,JG