产前暴露于可卡因对小鼠后代发情周期、发情和发情期行为以及雌激素受体α和催产素表达的影响

IF 1.6 4区 心理学 Q3 BEHAVIORAL SCIENCES
Behavioural Pharmacology Pub Date : 2024-10-01 Epub Date: 2024-09-11 DOI:10.1097/FBP.0000000000000791
Yanghui Zheng, Guangchao Cheng, Xikai Lin, Jianli Wang
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引用次数: 0

摘要

越来越多的证据表明,产前接触可卡因可能会导致许多发育和长期的神经和行为影响。雌性动物的行为与发情周期密切相关。雌激素受体和催产素是调节社会行为的重要神经内分泌因子,与雌性动物特别相关。然而,产前接触可卡因是否会诱导后代的发情周期发生变化,以及发情后代和绝经后代的神经行为变化是否存在差异,目前仍不清楚。在妊娠第12天,连续七天每天给小鼠注射一次可卡因,然后检测成年雌性后代的发情周期、运动、焦虑程度和社会行为,并比较发情后代和失发情后代的雌激素受体α免疫反应性神经元和催产素免疫反应性神经元的表达。产前可卡因暴露导致后代发情期和发情期缩短。在发情期和排卵期,产前暴露于可卡因的后代表现出焦虑水平升高,部分社会行为发生变化;其运动能力在发情期无显著差异,但在排卵期下降。产前可卡因暴露降低了发情期和绝经期后代视前区内侧、下丘脑腹内侧核和弓状核的雌激素受体α免疫活性表达,以及室旁核的催产素免疫活性表达。这些结果表明,产前可卡因暴露会以脑区特异性方式诱导后代发情周期的变化以及雌激素受体α和催产素的表达,而且产前可卡因暴露和发情周期会交互改变动情和部分社会行为。雌激素受体α和催产素信号在产前接触可卡因对后代的影响中可能发挥重要的协同作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of prenatal cocaine exposure on estrous cycle, and behavior and expression of estrogen receptor alpha and oxytocin during estrus and diestrus in mice offspring.

Increasing evidence indicates that prenatal cocaine exposure may result in many developmental and long-lasting neurological and behavioral effects. The behaviors of female animals are strongly associated with the estrous cycle. Estrogen receptors and oxytocin are important neuroendocrine factors that regulate social behavior and are of special relevance to females. However, whether prenatal cocaine exposure induces estrous cycle changes in offspring and whether neurobehavioral changes in estrus and diestrus offspring differ remains unclear. On gestational day 12, mice were administered cocaine once daily for seven consecutive days, then the estrous cycle was examined in adult female offspring, as well as locomotion, anxiety level, and social behaviors, and the expression of estrogen receptor alpha-immunoreactive and oxytocin-immunoreactive neurons were compared between estrus and diestrus offspring. Prenatal cocaine exposure resulted in the shortening of proestrus and estrus in the offspring. During estrus and diestrus, prenatally cocaine-exposed offspring showed increased anxiety levels and changed partial social behaviors; their motility showed no significant differences in estrus, but declined in diestrus. Prenatal cocaine exposure reduced estrogen receptor alpha-immunoreactive expression in the medial preoptic area, ventromedial hypothalamic nucleus, and arcuate nucleus and oxytocin-immunoreactive expression in the paraventricular nucleus in estrus and diestrus offspring. These results suggest that prenatal cocaine exposure induces changes in the offspring's estrous cycle and expression of estrogen receptor alpha and oxytocin in a brain region-specific manner and that prenatal cocaine exposure and the estrous cycle interactively change motility and partial social behavior. Estrogen receptor alpha and oxytocin signaling are likely to play important concerted roles in mediating the effects of prenatal cocaine exposure on the offspring.

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来源期刊
Behavioural Pharmacology
Behavioural Pharmacology 医学-行为科学
CiteScore
3.40
自引率
0.00%
发文量
84
审稿时长
6-12 weeks
期刊介绍: Behavioural Pharmacology accepts original full and short research reports in diverse areas ranging from ethopharmacology to the pharmacology of schedule-controlled operant behaviour, provided that their primary focus is behavioural. Suitable topics include drug, chemical and hormonal effects on behaviour, the neurochemical mechanisms under-lying behaviour, and behavioural methods for the study of drug action. Both animal and human studies are welcome; however, studies reporting neurochemical data should have a predominantly behavioural focus, and human studies should not consist exclusively of clinical trials or case reports. Preference is given to studies that demonstrate and develop the potential of behavioural methods, and to papers reporting findings of direct relevance to clinical problems. Papers making a significant theoretical contribution are particularly welcome and, where possible and merited, space is made available for authors to explore fully the theoretical implications of their findings. Reviews of an area of the literature or at an appropriate stage in the development of an author’s own work are welcome. Commentaries in areas of current interest are also considered for publication, as are Reviews and Commentaries in areas outside behavioural pharmacology, but of importance and interest to behavioural pharmacologists. Behavioural Pharmacology publishes frequent Special Issues on current hot topics. The editors welcome correspondence about whether a paper in preparation might be suitable for inclusion in a Special Issue.
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