相关实验视频

Updated: May 26, 2025

Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats

Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats

Published on: February 23, 2015

雌激醇对皮质下大脑体积的影响,在绝经前期开始的抑郁症中

Kathryn Gibson¹, Melissa Walsh¹, Megan Hynd²

¹Department of Psychiatry, University of North Carolina Chapel Hill, Chapel Hill, NC 27514, USA.

Journal of affective disorders

|February 21, 2025

概括

透皮雌激醇 (TE2) 降低了经更年期出现的大型抑郁症 (PO-MDD) 的女性的抑郁和血管运动症状. 海马体积变化与症状改善相关,这表明预测治疗反应的潜力.

科学领域:

神经内分泌学神经内分泌学
生殖精神病学是一种精神病学.
神经成像是一种神经成像.

背景情况:

绝经前期与抑郁和血管运动症状 (VMS) 的增加有关.
透皮性雌激醇 (TE2) 可以缓解这些症状.
在抑郁症中涉及的皮质下大脑区域对雌激素 (E2) 调节敏感.

研究的目的:

为了研究TE2的使用,经更年期开始的大型抑郁症 (PO-MDD) 和皮层下大脑体积之间的关系.
在PO-MDD的女性中,在TE2治疗后,探索特定大脑区域的变化.

主要方法:

对14名PO-MDD妇女和17名对照妇女在TE2治疗前3周和3周后3T MRI扫描的探索性分析.
感兴趣的区域包括海马体,杏仁体,皮质体,乳腺体和尾状核.
多级模型评估了基线体积,体积变化和症状轨迹之间的相关性.

主要成果:

在PO-MDD组中,在TE2给药后,无和VMS显著下降.
观察到右海马的显著相互作用,对照组体积增加.
在PO-MDD组中,右海马体体积变化预测了无和VMS的减少.

结论:

患有PO-MDD的女性表现出无线性,VMS和海马体积的较大减少,这表明对E2.2的强烈反应.
在这个人群中,海马体积的变化可以预测无和VMS的E2治疗反应.
建议通过安慰剂受控试验进一步验证.

关键词:

这就是安赫多尼亚 (Anhedonia).抑郁症抑郁症抑郁症更年期绝经绝经血管运动器的动力.在海马体内,海马体

更多相关视频

Ovariectomy and 17β-estradiol Replacement in Rats and Mice: A Visual Demonstration

Ovariectomy and 17β-estradiol Replacement in Rats and Mice: A Visual Demonstration

Published on: June 7, 2012

An In Vivo Estrogen Deficiency Mouse Model for Screening Exogenous Estrogen Treatments of Cardiovascular Dysfunction After Menopause

An In Vivo Estrogen Deficiency Mouse Model for Screening Exogenous Estrogen Treatments of Cardiovascular Dysfunction After Menopause

Published on: August 13, 2019

相关概念视频

Menopause

Menopause

Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...

Depressive Disorders: Etiology

Depressive Disorders: Etiology

Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...

Depression: Overview

Depression: Overview

Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...

Electroconvulsive Therapy

Electroconvulsive Therapy

Electroconvulsive therapy (ECT), or shock therapy, remains a critical biomedical intervention for severe, treatment-resistant depression. While its origins can be traced back to Hippocrates' observations that malaria-induced convulsions alleviated mental illness, modern ECT has evolved significantly from its earlier, more primitive applications. First introduced in 1938 by Ugo Cerletti and his colleagues, ECT involves inducing controlled seizures using electrical currents. In its early...