5-HT及5-HT1A受体在不同妊娠阶段大鼠子宫中的分布

中国农业科学 ›› 2011, Vol. 44 ›› Issue (3): 604-612 .

5-HT及5-HT1A受体在不同妊娠阶段大鼠子宫中的分布

郝建军,徐永平,王红梅,胡小海,多吉拉姆

（西北农林科技大学动物医学院）

收稿日期:2010-04-19 修回日期:2010-06-21 出版日期:2011-02-01 发布日期:2011-02-01
通讯作者: 徐永平

Distribution of 5-HT and 5-HT1A Receptors in Uterus of Rats During Pregnancy

HAO Jian-jun, XU Yong-ping, WANG Hong-mei, HU Xiao-hai, DUO JI La-mu

（西北农林科技大学动物医学院）

Received:2010-04-19 Revised:2010-06-21 Online:2011-02-01 Published:2011-02-01
Contact: XU Yong-ping

摘要/Abstract

摘要：

【目的】研究5-羟色胺（5-hydroxytryptamine,5-HT）及5-HT1A受体在SD大鼠妊娠期子宫中的分布情况和变化规律。【方法】选取均为正常妊娠的30 只雌性SD大鼠分为妊娠3 d、妊娠5 d、妊娠7 d、妊娠13 d、妊娠19 d及产后第1天6组,处死各组大鼠,取子宫制作石蜡切片,经免疫组织化学SP 法染色后,进行观察分析。【结果】5-HT及5-HT1A受体免疫阳性产物广泛存在于子宫内膜上皮细胞、子宫腺上皮细胞、血管内皮细胞、基质细胞、蜕膜细胞、免疫细胞及肌纤维中;5-HT在妊娠7 d和妊娠13 d着色最深,5-HT1A受体在妊娠13 d着色最深。5-HT及5-HT1A受体免疫阳性产物相对表达量的T检验表明,子宫内膜5-HT在妊娠7 d和妊娠13 d的表达较妊娠3 d、妊娠5 d和产后极显著的增加（P＜0.01）,较妊娠19 d显著增加（P＜0.05）;子宫肌层5-HT在妊娠19 d的表达较妊娠7 d显著减少（P＜0.05）,较妊娠13 d极显著的减少（P＜0.01）。子宫内膜5-HT1A受体在妊娠13 d较妊娠3 d、妊娠5 d、妊娠19 d及产后极显著的增加（P＜0.01）,较妊娠7 d显著增加（P＜0.05）;子宫肌层5-HT1A受体在妊娠13 d较妊娠各个时期极显著增加（P＜0.01）。5-HT和5-HT1A受体在妊娠期子宫中的表达,具有极显著的正相关性。【结论】5-HT和5-HT1A受体在妊娠期子宫中的表达具有一定规律,5-HT通过5-HT1A受体参与妊娠的调节。

关键词: 5-羟色胺, 5-HT1A受体, 免疫组织化学SP法, 妊娠期, 子宫, SD大鼠

Abstract:

【Objective】 The distribution and expression variation of 5-HT and 5-HT1A receptors in the uterus of the Sprague Dawley during pregnancy were studied. 【Method】 Thirty mature female SD rats with normal pregnancy were randomly divided into 6 groups: pregnancy 3 days group (3D), pregnancy 5 days group (5D) , pregnancy 7 days group (7D), pregnancy13 days group (13D), pregnancy 19 days group (19D) and the first day of postpartum group (P1). The expression of 5-HT and 5-HT1A R in uterus of the rats during pregnancy cycle were studied by immunohistochemical SP method.【Result】The 5-HT and 5-HT1A R immunoreactive products mainly located in endometrial epithelial cells, the glandular epithelium, vascular endothelial cells, stromal cells, decidual cells, immune cells and muscle fiber. The strongest coloration of 5-HT was in 7D and 13D. The strongest coloration of 5-HT1A R was in 13D. The relative expression of immunoreactive product 5-HT and 5-HT1A R of T-test showed that, compared with the 3D, 5D and P1, the expression of 5-HT in 7D and 13D of endometrium was extremely significantly increased (P＜0.01), compared with the 19D, the expression of 5-HT in 7D and 13D were significantly increased (P＜0.05). Compared with the 7D, the expression of 5-HT in 19D of myometrium was significantly decreased (P＜0.05), compared with the 13D, the expression of 5-HT in 19D of myometrium was extremely significantly decreased (P＜0.01). Compared with the 3D, 5D, 7D and P0, the expression of 5-HT1A R in 13D of endometrium was extremely significantly increased (P＜0.01), Compared with the 7D, expression of 5-HT1A R in 13D of endometrium was significantly increased (P＜0.05). Compared with the 3D, 5D, 7D ,19D and P1, the expression of 5-HT1A R in 13D of myometrium was extremely significantly increased (P＜0.01). Expression of 5-HT and 5-HT1AR in pregnancy had highly significant positive correlation. 【Conclusion】 The expression of 5-HT and 5-HT1A R in the uterus in different pregnancy periods was found to adapt to some certain rules, 5-HT through 5-HT1AR are involved in the regulation of pregnancy.

Key words: 5-HT, 5-HT1A receptors, immunohistochemical SP method, pregnancy, uterus, rats

郝建军,徐永平,王红梅,胡小海,多吉拉姆 . 5-HT及5-HT1A受体在不同妊娠阶段大鼠子宫中的分布[J]. 中国农业科学, 2011, 44(3): 604-612 .

HAO Jian-jun,XU Yong-ping,WANG Hong-mei,HU Xiao-hai,DUO JI La-mu
.

Distribution of 5-HT and 5-HT1A Receptors in Uterus of Rats During Pregnancy

[J]. Scientia Agricultura Sinica, 2011, 44(3): 604-612 .

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