ArticleBMC neuroscience2013
Estrogen replacement modulates voltage-gated potassium channels in rat presympathetic paraventricular nucleus neurons.
Article in BMC neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 19 citations in OpenAlex.
- Role of Piezo1 Channels Expressed in PVN in Regulating Sympathetic Nerve Activity and Arterial Blood Pressure in Rats.International journal of molecular sciences · 2026Article
- Midlife estradiol treatment reduces the firing rate of liver-related PVN neurons in ovariectomized high-fat diet-fed mice.American journal of physiology. Regulatory, integrative and comparative physiology · 2025Article
- A subset of neurons in the paraventricular nucleus of the hypothalamus directly project to liver-related premotor neurons in the ventrolateral medulla.Autonomic neuroscience : basic & clinical · 2025Article
- Cardiometabolic health, menopausal estrogen therapy and the brain: How effects of estrogens diverge in healthy and unhealthy preclinical models of aging.Frontiers in neuroendocrinology · 2023Review
- Estradiol regulates voltage-gated potassium currents in corticotropin-releasing hormone neurons.The Journal of experimental biology · 2023Article
- Brain nuclear receptors and cardiovascular function.Cell & bioscience · 2023Review
- The modulation of potassium channels by estrogens facilitates neuroprotection.Frontiers in cell and developmental biology · 2022Review
- Sex, the brain and hypertension: brain oestrogen receptors and high blood pressure risk factors.Clinical science (London, England : 1979) · 2016Review
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe 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).
resultsSingle-cell real-time RT-PCR analysis showed that 17β-estradiol (E2) replacement (once daily for 4 days) selectively down-regulated Kv4.2 mRNA levels in the PVN-RVLM neurons of ovariectomized female rats. There was no change in Kv4.3 levels. Whole-cell patch-clamp recordings demonstrated that E2 also diminished IA densities. Interestingly, these effects were most apparent in the dorsal cap parvocellular subdivision of the PVN. E2 also shortened a delay in the excitation of the PVN-RVLM neurons.
conclusionsThese findings demonstrate that E2 exerts an inhibitory effect on the functions of IA, potentially by selectively down-regulating Kv4.2 but not Kv4.3 in PVN-RVLM neurons distributed in a specific parvocellular subdivision.
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