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中国应用生理学杂志 ›› 2022, Vol. 38 ›› Issue (4): 300-303.doi: 10.12047/j.cjap.6297.2022.056

• 研究论文 • 上一篇    下一篇

营养制剂对间歇性寒冷暴露大鼠子宫、卵巢内HPO轴功能及能量代谢的影响*

金璐1, 边祥雨2, 董维雲2, 杨忍忍1, 王玖1, 杨丹凤2, 高蔚娜2△, 郭长江1,2△   

  1. 1.滨州医学院公共卫生与管理学院, 山东 烟台 264003;
    2.军事科学院军事医学研究院环境医学与作业医学研究所, 天津 300050
  • 收稿日期:2022-03-11 修回日期:2022-03-11 出版日期:2022-07-28 发布日期:2022-11-23
  • 通讯作者: Tel: 13682010575,13512064968; E-mail: gwn2004bo@126.com, guocjtj@126.com
  • 基金资助:
    *军队后勤科研目录重点项目(BWS17J025)

Effects of nutritional preparation on HPO axis function and energy metabolism in uterus and ovary of rats exposed to intermittent cold

JIN Lu1, BIAN Xiang-yu2, DONG Wei-yun2, YANG Ren-ren1, WANG Jiu1, YANG Dan-feng2, GAO Wei-na2△, GUO Chang-jiang1,2△   

  1. 1. School of Public Health and Management, Binzhou Medical College,Yantai 264003;
    2. Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences, Academy of Military Sciences, Tianjin 300050, China
  • Received:2022-03-11 Revised:2022-03-11 Online:2022-07-28 Published:2022-11-23

摘要: 目的: 观察一种自行设计的营养制剂对间歇性寒冷暴露SD雌性大鼠下丘脑-垂体-卵巢轴(HPO轴)功能及能量代谢的影响。 方法: 将雌性SD大鼠分为对照组、寒冷暴露组、营养制剂组,每组11只。对照组、寒冷暴露组每日灌胃蒸馏水,营养制剂组每日灌胃营养制剂,灌胃后寒冷暴露组、营养制剂组每日于-10℃冷舱内暴露4 h,持续14 d后,取血清、子宫、卵巢,采用酶联免疫吸附(ELISA)法测定血清卵泡刺激素(FSH)、黄体生成素(LH)等激素指标,采用比色法等检测ATP酶等能量代谢相关指标。 结果: 与对照组相比,寒冷暴露显著上调大鼠卵巢中FSHR、LHR蛋白表达,增强子宫和卵巢Na+-K+-ATP酶、Ca2+-Mg2+-ATP酶活性(P<0.05);与寒冷暴露组相比,营养制剂能够下调低氧暴露大鼠卵巢FSHR、LHR蛋白的表达,抑制卵巢和子宫中Na+-K+-ATP酶、Ca2+-Mg2+-ATP酶的活性(P<0.05)。 结论: 营养制剂可以有效改善间歇性寒冷暴露对子宫、卵巢内HPO轴相关受体表达和能量代谢的影响。

关键词: 寒冷应激, 能量代谢, 卵泡刺激素受体, 黄体生成素受体, 下丘脑-垂体-卵巢轴(HPO轴), 大鼠

Abstract: Objective: To investigate the effects of a self-designed nutritional preparation on hypothalamic-pituitary-ovarian (HPO) axis function and energy metabolism in female SD rats exposed to intermittent cold. Methods: Female SD rats were divided into control group, cold exposure group and nutritional preparation group. The control group and cold exposure group were given distilled water by daily gavage, and the nutritional preparation group was given nutritional preparation intragastrically. After the treatment, the cold exposure group and nutritional preparation group were exposed to -10℃ in a cabin for 4 h every day. After being treated for 14 days, the serum, uterus and ovary of rats were collected. The serum follicle stimulating hormone (FSH), luteinizing hormone (LH) and other hormone indicators were detected by enzyme-linked immunosorbent assay (ELISA) and colorimetry was used to detect ATPase and other energy metabolism related indicators. Results: Compared with the control group, cold exposure significantly up-regulated the protein expressions of FSHR and LHR, and notably enhanced the activity of Na+-K+-ATPase and Ca2+-Mg2+-ATPase in ovary and uterus (P<0.05). Nutritional preparation down-regulated the protein expressions of FSHR and LHR, and inhibited the activity of ATPase in ovary and uterus (P<0.05) compared with the cold exposure group. Conclusion: Nutritional preparations can effectively improve the expressions of HPO axis related receptors and abnormal energy metabolism in uterus and ovary caused by intermittent cold exposure.

Key words: cold stress, energy metabolism, follicle stimulating hormone receptor, luteinizing hormone receptor, hypothalamic-pituitary-ovarian axis(HPO axis), rats

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