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Chronic Sustained Hypoxia Enhances Both Evoked EPSCs and Norepinephrine Inhibition of Glutamatergic Afferent Inputs in the Nucleus of the Solitary Tract
The nucleus of the solitary tract (NTS) receives inputs from both arterial chemoreceptors and central noradrenergic neural structures activated during hypoxia. We investigated norepinephrine (NE)Expand
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Chronic sustained and intermittent hypoxia reduce function of ATP-sensitive potassium channels in nucleus of the solitary tract.
Activation of neuronal ATP-sensitive potassium (K(ATP)) channels is an important mechanism that protects neurons and conserves neural function during hypoxia. We investigated hypoxia (bath gassedExpand
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Chronic intermittent hypoxia alters NMDA and AMPA-evoked currents in NTS neurons receiving carotid body chemoreceptor inputs.
Chronic exposure to intermittent hypoxia (CIH) has been used in animals to mimic the arterial hypoxemia that accompanies sleep apnea. Humans with sleep apnea and animals exposed to CIH have elevatedExpand
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Hypertension alters GABA receptor-mediated inhibition of neurons in the nucleus of the solitary tract.
Previous studies have demonstrated that microinjection of baclofen, a GABA(B) receptor agonist, into the nucleus of the solitary tract (NTS) results in an enhanced pressor response in hypertensiveExpand
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Transient voltage-dependent potassium currents are reduced in NTS neurons isolated from renal wrap hypertensive rats.
Whole cell patch-clamp measurements were made in neurons enzymatically dispersed from the nucleus of the solitary tract (NTS) to determine if alterations occur in voltage-dependent potassium channelsExpand
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Chronic Hypertension Enhances the Postsynaptic Effect of Baclofen in the Nucleus Tractus Solitarius
Microinjection of the inhibitory neurotransmitter &ggr;-aminobutyric acid B-subtype receptor agonist baclofen into the nucleus tractus solitarius increases arterial blood pressure and sympatheticExpand
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5-Hydroxytryptamine–Mediated Neurotransmission Modulates Spontaneous and Vagal-Evoked Glutamate Release in the Nucleus of the Solitary Tract Effect of Uptake Blockade
The effect of blockade of either 5-hydroxytryptamine (5-HT)/serotonin transporter (SERT) with citalopram or the organic cation transporter 3 (OCT3)/plasma membrane monoamine transporter (PMAT) withExpand
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Plasticity of GABAergic mechanisms within the nucleus of the solitary tract in hypertension.
Adaptive changes have long been recognized to occur in the heart and vasculature in response to chronic hypertension. What might be less well-appreciated is the fact that chronically increased bloodExpand
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Neurogenic mechanisms underlying the rapid onset of sympathetic responses to intermittent hypoxia.
Sleep apnea (SA) leads to metabolic abnormalities and cardiovascular dysfunction. Rodent models of nocturnal intermittent hypoxia (IH) are used to mimic arterial hypoxemias that occur during SA. ThisExpand
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Chronic and intermittent hypoxia differentially regulate left ventricular inflammatory and extracellular matrix responses
We evaluated the left ventricle (LV) response to hypoxia by comparing male Sprague Dawley rats exposed for 7 days to normoxia (control; n=18), chronic sustained hypoxia (CSH; n=12) and chronicExpand
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