Unknown

Dataset Information

0

Estrogen Receptor-? in the Medial Amygdala Prevents Stress-Induced Elevations in Blood Pressure in Females.


ABSTRACT: Psychological stress contributes to the development of hypertension in humans. The ovarian hormone, estrogen, has been shown to prevent stress-induced pressor responses in females by unknown mechanisms. Here, we showed that the antihypertensive effects of estrogen during stress were blunted in female mice lacking estrogen receptor-? in the brain medial amygdala. Deletion of estrogen receptor-? in medial amygdala neurons also resulted in increased excitability of these neurons, associated with elevated ionotropic glutamate receptor expression. We further demonstrated that selective activation of medial amygdala neurons mimicked effects of stress to increase blood pressure in mice. Together, our results support a model where estrogen acts on estrogen receptor-? expressed by medial amygdala neurons to prevent stress-induced activation of these neurons, and therefore prevents pressor responses to stress.

SUBMITTER: Hinton AO 

PROVIDER: S-EPMC4865414 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

Estrogen Receptor-α in the Medial Amygdala Prevents Stress-Induced Elevations in Blood Pressure in Females.

Hinton Antentor Othrell AO   He Yanlin Y   Xia Yan Y   Xu Pingwen P   Yang Yongjie Y   Saito Kenji K   Wang Chunmei C   Yan Xiaofeng X   Shu Gang G   Henderson Alexander A   Clegg Deborah J DJ   Khan Sohaib A SA   Reynolds Corey C   Wu Qi Q   Tong Qingchun Q   Xu Yong Y  

Hypertension (Dallas, Tex. : 1979) 20160418 6


Psychological stress contributes to the development of hypertension in humans. The ovarian hormone, estrogen, has been shown to prevent stress-induced pressor responses in females by unknown mechanisms. Here, we showed that the antihypertensive effects of estrogen during stress were blunted in female mice lacking estrogen receptor-α in the brain medial amygdala. Deletion of estrogen receptor-α in medial amygdala neurons also resulted in increased excitability of these neurons, associated with el  ...[more]

Similar Datasets

| S-EPMC4563687 | biostudies-literature
| S-EPMC10589649 | biostudies-literature
| S-EPMC2754763 | biostudies-literature
| S-EPMC5673274 | biostudies-literature
| S-EPMC4042076 | biostudies-literature
2021-02-28 | GSE164900 | GEO
| S-EPMC7321869 | biostudies-literature
| S-EPMC2756980 | biostudies-literature
| S-EPMC4862252 | biostudies-literature
| S-EPMC4975636 | biostudies-literature