Ultrastructural localization of extranuclear progestin receptors relative to C1 neurons in the rostral ventrolateral medulla
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چکیده
منابع مشابه
Angiotensin type 1A receptors in C1 neurons of the rostral ventrolateral medulla modulate the pressor response to aversive stress.
The rise in blood pressure during an acute aversive stress has been suggested to involve activation of angiotensin type 1A receptors (AT(1A)Rs) at various sites within the brain, including the rostral ventrolateral medulla. In this study we examine the involvement of AT(1A)Rs associated with a subclass of sympathetic premotor neurons of the rostral ventrolateral medulla, the C1 neurons. The dis...
متن کاملEffect of GABAA Receptors in the Rostral Ventrolateral Medulla on Cardiovascular Response to the Activation of the Bed Nucleus of the Stria Terminalis in Female Ovariectomized Rats
Background: The areas of the bed nucleus of the stria terminalis (BST) with a high density of estrogen receptors are involved in cardiovascular regulation and send axonal projections to the rostroventrolateral medulla (RVLM). We aimed to find the contribution of the RVLM to cardiovascular responses elicited by glutamate microinjection into the BST. Methods: Experiments were done in α-ch...
متن کاملAT(1) receptors mediate excitatory inputs to rostral ventrolateral medulla pressor neurons from hypothalamus.
Angiotensin II type 1 (AT(1)) receptors are located on pressor neurons in the rostral ventrolateral medulla, and their activation results in an increase in arterial pressure. However, the normal role of these AT(1) receptors in cardiovascular regulation is unknown. In this study, we tested the hypothesis that these receptors mediate synaptic excitation of rostral ventrolateral medullary pressor...
متن کاملReticulospinal vasomotor neurons of the rat rostral ventrolateral medulla: relationship to sympathetic nerve activity and the C1 adrenergic cell group.
Neurons projecting from the rostral ventrolateral medulla (RVL) to the spinal cord were antidromically identified in rats anesthetized with urethane, paralyzed, and ventilated. The sites of lowest antidromic threshold were concentrated in the intermediolateral nucleus (IML). Their axonal conduction velocities were distributed bimodally, with the mean of the rapidly conducting fibers (greater th...
متن کاملGlutaminergic receptors in rostral ventrolateral medulla mediate the cardiovascular responses to activation of bed nucleus of the stria terminalis in female rats
The bed nucleus of the stria terminalis (BST) has been known to contain estrogen (E)-concentrating neurons. In addition, injections of E into BST have been reported to potentiate the sympathoinhibitory arterial pressure (AP) and heart rate (HR) responses elicited by glutamate (Glu) stimulation. In this study, the effect of glutamate antagonist receptors in the rostral ventrolateral medulla (RVL...
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ژورنال
عنوان ژورنال: Neuroscience Letters
سال: 2008
ISSN: 0304-3940
DOI: 10.1016/j.neulet.2007.11.036