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Chronic Piromelatine Treatment Alleviates Anxiety, Depressive Responses and Abnormal Hypothalamic–Pituitary–Adrenal Axis Activity in Prenatally Stressed Male and Female Rats
Cellular and Molecular Neurobiology ( IF 4 ) Pub Date : 2021-05-18 , DOI: 10.1007/s10571-021-01100-8
Natasha Ivanova 1 , Zlatina Nenchovska 1 , Milena Atanasova 2 , Moshe Laudon 3 , Rumyana Mitreva 1 , Jana Tchekalarova 1
Affiliation  

The prenatal stress (PNS) model in rodents can induce different abnormal responses that replicate the pathophysiology of depression. We applied this model to evaluate the efficacy of piromelatine (Pir), a novel melatonin analog developed for the treatment of insomnia, in male and female offspring. Adult PNS rats from both sexes showed comparable disturbance associated with high levels of anxiety and depressive responses. Both males and females with PNS demonstrated impaired feedback inhibition of the hypothalamic–pituitary–adrenal (HPA) axis compared to the intact offspring and increased glucocorticoid receptors in the hippocampus. However, opposite to female offspring, the male PNS rats showed an increased expression of mineralocorticoid receptors in the hippocampus. Piromelatine (20 mg/kg, i.p., for 21 days injected from postnatal day 60) attenuated the high anxiety level tested in the open field, elevated plus-maze and light–dark test, and depressive-like behavior in the sucrose preference and the forced swimming tests in a sex-specific manner. The drug reversed to control level stress-induced increase of plasma corticosterone 120 min later in both sexes. Piromelatine also corrected to control level the PNS-induced alterations of corticosteroid receptors only in male offspring. Our findings suggest that the piromelatine treatment exerts beneficial effects on impaired behavioral responses and dysregulated HPA axis in both sexes, while it corrects the PNS-induced changes in the hippocampal corticosteroid receptors only in male offspring.



中文翻译:

慢性吡罗美拉汀治疗可减轻产前应激雄性和雌性大鼠的焦虑、抑郁反应和下丘脑-垂体-肾上腺轴活动异常

啮齿动物的产前应激 (PNS) 模型可以诱导不同的异常反应,从而复制抑郁症的病理生理学。我们应用这个模型来评估piromelatine (Pir) 的疗效,这是一种为治疗失眠而开发的新型褪黑激素类似物,在雄性和雌性后代中的作用。来自两性的成年 PNS 大鼠表现出与高水平的焦虑和抑郁反应相关的类似障碍。与完整的后代相比,患有 PNS 的男性和女性都表现出对下丘脑-垂体-肾上腺 (HPA) 轴的反馈抑制受损,并且海马中的糖皮质激素受体增加。然而,与雌性后代相反,雄性 PNS 大鼠的海马中盐皮质激素受体的表达增加。吡罗美拉汀(20 mg/kg,腹腔注射,从出生后第 60 天开始注射 21 天)减弱了在露天测试中的高焦虑水平、升高的十字迷宫和明暗测试以及蔗糖偏好和强迫游泳测试中的抑郁样行为。 . 120 分钟后,药物逆转以控制压力诱导的两种性别的血浆皮质酮水平升高。Piromelatine 还校正以控制仅在雄性后代中 PNS 诱导的皮质类固醇受体改变的水平。我们的研究结果表明,piromelatine 治疗对两性的行为反应受损和 HPA 轴失调发挥有益作用,同时它仅在雄性后代中纠正 PNS 诱导的海马皮质类固醇受体变化。蔗糖偏好和强迫游泳测试中的抑郁样行为以特定性别的方式进行。120 分钟后,药物逆转以控制压力诱导的两种性别的血浆皮质酮水平升高。Piromelatine 还校正以控制仅在雄性后代中 PNS 诱导的皮质类固醇受体改变的水平。我们的研究结果表明,piromelatine 治疗对两性的行为反应受损和 HPA 轴失调发挥有益作用,同时它仅在雄性后代中纠正 PNS 诱导的海马皮质类固醇受体变化。蔗糖偏好和强迫游泳测试中的抑郁样行为以特定性别的方式进行。120 分钟后,药物逆转以控制压力诱导的两种性别的血浆皮质酮水平升高。Piromelatine 还校正以控制仅在雄性后代中 PNS 诱导的皮质类固醇受体改变的水平。我们的研究结果表明,piromelatine 治疗对两性的行为反应受损和 HPA 轴失调发挥有益作用,同时它仅在雄性后代中纠正 PNS 诱导的海马皮质类固醇受体变化。Piromelatine 还校正以控制仅在雄性后代中 PNS 诱导的皮质类固醇受体改变的水平。我们的研究结果表明,piromelatine 治疗对两性的行为反应受损和 HPA 轴失调发挥有益作用,同时它仅在雄性后代中纠正 PNS 诱导的海马皮质类固醇受体变化。Piromelatine 还校正以控制仅在雄性后代中 PNS 诱导的皮质类固醇受体改变的水平。我们的研究结果表明,piromelatine 治疗对两性的行为反应受损和 HPA 轴失调发挥有益作用,同时它仅在雄性后代中纠正 PNS 诱导的海马皮质类固醇受体变化。

更新日期:2021-05-18
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