Title |
Estrogen replacement modulates voltage-gated potassium channels in rat presympathetic paraventricular nucleus neurons
|
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Published in |
BMC Neuroscience, November 2013
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DOI | 10.1186/1471-2202-14-134 |
Pubmed ID | |
Authors |
Seul Ki Lee, Pan Dong Ryu, So Yeong Lee |
Abstract |
The hypothalamic paraventricular nucleus (PVN) is an important site in the regulation of the autonomic nervous system. Specifically, PVN neurons projecting to the rostral ventrolateral medulla (PVN-RVLM) play a regulatory role in the determination of the sympathetic outflow in the cardiovascular system. In the PVN-RVLM neurons, the estrogen receptor β is expressed. However, to date, the effects of estrogen on PVN-RVLM neurons have not been reported. The present study investigated estrogen-mediated modulation of two voltage-gated potassium channel (Kv) subunits, Kv4.2 and Kv4.3, that are expressed predominantly in PVN neurons and the functional current of Kv4.2 and Kv4.3, the transient outward potassium current (IA). |
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