ArticlePloS one2013
Remodeling of hyperpolarization-activated current, Ih, in Ah-type visceral ganglion neurons following ovariectomy in adult rats.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 28 citations in OpenAlex.
- Article
- Natriuretic Peptides-New Targets for Neurocontrol of Blood Pressure via Baroreflex Afferent Pathway.International journal of molecular sciences · 2022Article
- Estrogen-dependent depressor response of melatonin via baroreflex afferent function and intensification of PKC-mediated NaActa pharmacologica Sinica · 2022Article
- Bradykinin-mediated estrogen-dependent depressor response by direct activation of female-specific distribution of myelinated Ah-type baroreceptor neurons in rats.CNS neuroscience & therapeutics · 2022Article
- Adaptive Resetting of Tuberoinfundibular Dopamine (TIDA) Network Activity during Lactation in Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
- Direct activation of tachykinin receptors within baroreflex afferent pathway and neurocontrol of blood pressure regulation.CNS neuroscience & therapeutics · 2019Article
- Spontaneous activities in baroreflex afferent pathway contribute dominant role in parasympathetic neurocontrol of blood pressure regulation.CNS neuroscience & therapeutics · 2018Article
- Neuropeptide Y-mediated sex- and afferent-specific neurotransmissions contribute to sexual dimorphism of baroreflex afferent function.Oncotarget · 2016Article
- Article
- Sex differences in the neurobiology of epilepsy: a preclinical perspective.Neurobiology of disease · 2014Review
- Increase in neuroexcitability of unmyelinated C-type vagal ganglion neurons during initial postnatal development of visceral afferent reflex functions.CNS neuroscience & therapeutics · 2013Article
- Subtype identification in acutely dissociated rat nodose ganglion neurons based on morphologic parameters.International journal of biological sciences · 2013Article
- Gender differences in histamine-induced depolarization and inward currents in vagal ganglion neurons in rats.International journal of biological sciences · 2013Article
- Article
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Authors and funding
11 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Hyperpolarization-activated currents (Ih) mediated by hyperpolarization-activated cyclic nucleotide-gated (HCN) channels modulate excitability of myelinated A- and Ah-type visceral ganglion neurons (VGN). Whether alterations in Ih underlie the previously reported reduction of excitability of myelinated Ah-type VGNs following ovariectomy (OVX) has remained unclear. Here we used the intact nodose ganglion preparation in conjunction with electrophysiological approaches to examine the role of Ih remodeling in altering Ah-type neuron excitability following ovariectomy in adult rats. Ah-type neurons were identified based on their afferent conduction velocity. Ah-type neurons in nodose ganglia from non-OVX rats exhibited a voltage 'sag' as well as 'rebound' action potentials immediately following hyperpolarizing current injections, which both were suppressed by the Ih blocker ZD7288. Repetitive spike activity induced afterhyperpolarizations lasting several hundreds of milliseconds (termed post-excitatory membrane hyperpolarizations, PEMHs), which were significantly reduced by ZD7288, suggesting that they resulted from transient deactivation of Ih during the preceding spike trains. Ovariectomy reduced whole-cell Ih density, caused a hyperpolarizing shift of the voltage-dependence of Ih activation, and slowed Ih activation. OVX-induced Ih remodeling was accompanied by a flattening of the stimulus frequency/response curve and loss of PEMHs. Also, HCN1 mRNA levels were reduced by ∼30% in nodose ganglia from OVX rats compared with their non-OVX counterparts. Acute exposure of nodose ganglia to 17beta-estradiol partly restored Ih density and accelerated Ih activation in Ah-type cells. In conclusion, Ih plays a significant role in modulating the excitability of myelinated Ah-type VGNs in adult female rats.
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