Search Results - "SCHREIHOFER, A. M."

Regulation of Sympathetic Tone and Arterial Pressure by the Rostral Ventrolateral Medulla after Depletion of C1 Cells in Rats by GUYENET, P. G., SCHREIHOFER, A. M., STORNETTA, R. L.

“…: This review describes experiments designed to determine the role of bulbospinal (BS) C1 cells in regulating the sympathetic outflow and blood pressure. This…”
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Use of sinoaortic denervation to study the role of baroreceptors in cardiovascular regulation by Schreihofer, A M, Sved, A F

“…To assess the role of arterial baroreceptors in cardiovascular regulation, many studies have used rats in which baroreceptor afferents have been surgically…”
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Distribution and amino acid content of enkephalin-immunoreactive inputs onto juxtacellularly labelled bulbospinal barosensitive neurons in rat rostral ventrolateral medulla by Llewellyn-Smith, I.J, Schreihofer, A.M, Guyenet, P.G

“…The activity of bulbospinal (presympathetic) vasomotor neurons of the rostral ventrolateral medulla is modulated pre- and postsynaptically by exogenously…”
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PNMT-containing neurons of the C1 cell group express c-fos in response to changes in baroreceptor input by Sved, A F, Mancini, D L, Graham, J C, Schreihofer, A M, Hoffman, G E

“…The immunocytochemical detection of Fos, the protein product of the immediate-early gene c-fos, was used as a marker for activated neurons to examine whether…”
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Vesicular glutamate transporter DNPI/VGLUT2 is expressed by both C1 adrenergic and nonaminergic presympathetic vasomotor neurons of the rat medulla by Stornetta, Ruth L., Sevigny, Charles P., Schreihofer, Ann M., Rosin, Diane L., Guyenet, Patrice G.

“…The main source of excitatory drive to the sympathetic preganglionic neurons that control blood pressure is from neurons located in the rostral ventrolateral…”
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Nucleus tractus solitarius and control of blood pressure in chronic sinoaortic denervated rats by Schreihofer, A M, Sved, A F

“…To determine the role of the nucleus tractus solitarius (NTS) in the tonic maintenance of arterial pressure (AP) following chronic baroreceptor denervation,…”
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Chronic nucleus tractus solitarius lesions do not prevent hypovolemia-induced vasopressin secretion in rats by Schreihofer, A M, Stricker, E M, Sved, A F

“…The present study examined the hypothesis that hypovolemia stimulates vasopressin (VP) secretion by removing tonic inhibitory baroreceptor input. Serial…”
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The kidneys stimulate vasopressin release during hemorrhage in rats with chronic NTS lesions by Schreihofer, A M, Hoffman, G E, Sved, A F

“…Elimination of baroreceptor afferent input to the brain produced by chronic lesion of nucleus of the solitary tract (NTS) does not alter vasopressin (VP)…”
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Activity of 2-substituted lysophosphatidic acid (LPA) analogs at LPA receptors: discovery of a LPA1/LPA3 receptor antagonist by Heise, C E, Santos, W L, Schreihofer, A M, Heasley, B H, Mukhin, Y V, Macdonald, T L, Lynch, K R

“…The physiological implications of lysophosphatidic acid occupancy of individual receptors are largely unknown because selective agonists/antagonists are…”
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Identification of C1 presympathetic neurons in rat rostral ventrolateral medulla by juxtacellular labeling in vivo by Schreihofer, Ann M., Guyenet, Patrice G.

“…The rostral ventrolateral medulla (RVLM) contains barosensitive, bulbospinal neurons that provide the main supraspinal excitatory input to sympathetic…”
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Baro-Activated Neurons With Pulse-Modulated Activity in the Rat Caudal Ventrolateral Medulla Express GAD67 mRNA by Schreihofer, Ann M, Guyenet, Patrice G

“…  1 Department of Pharmacology, University of Virginia Health System, Charlotttesville, Virginia 22908-0735; and   2 Department of Physiology, Medical College…”
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Sodium deprivation blunts hypovolemia-induced pituitary secretion of vasopressin and oxytocin in rats by Stricker, E M, Schreihofer, A M, Verbalis, J G

“…The present investigations determined the effects of dietary sodium deprivation on the neurohypophysial secretion of arginine vasopressin (AVP) and oxytocin…”
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Evidence for glycinergic respiratory neurons: Bötzinger neurons express mRNA for glycinergic transporter 2 by Schreihofer, Ann M., Stornetta, Ruth L., Guyenet, Patrice G.

“…Bötzinger (BÖTZ) neurons in the rostral ventrolateral medulla fire during the late expiratory phase of the respiratory cycle. These cells inhibit phrenic motor…”
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Preproenkephalin mRNA is expressed by C1 and non-C1 barosensitive bulbospinal neurons in the rostral ventrolateral medulla of the rat by Stornetta, Ruth L., Schreihofer, Ann M., Pelaez, Nicole M., Sevigny, Charles P., Guyenet, Patrice G.

“…The autonomic regions of the thoracolumbar spinal cord receive a dense enkephalinergic (ENK) innervation from supraspinal sources, including the rostral…”
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Role of presympathetic C1 neurons in the sympatholytic and hypotensive effects of clonidine in rats by Schreihofer, A M, Guyenet, P G

“…The rostral ventrolateral medulla (RVLM) may play an important role in the sympatholytic and hypotensive effects of clonidine. The present study examined which…”
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μ-opioid receptors are present in functionally identified sympathoexcitatory neurons in the rat rostral ventrolateral medulla by Aicher, Sue A., Schreihofer, Ann M., Kraus, James A., Sharma, Sarita, Milner, Teresa A., Guyenet, Patrice G.

“…Agonists of the μ‐opioid receptor (MOR) produce profound hypotension and sympathoinhibition when microinjected into the rostral ventrolateral medulla (RVL)…”
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Nucleus of the solitary tract lesions enhance drinking, but not vasopressin release, induced by angiotensin by Schreihofer, A M, Stricker, E M, Sved, A F

“…Rats with chronic nucleus of the solitary tract lesions (NTS-X) drink water and release vasopressin (VP) in response to reduced blood volume despite an absence…”
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Thirst and salt appetite elicited by hypovolemia in rats with chronic lesions of the nucleus of the solitary tract by Schreihofer, A.M. (University of Pittsburgh, Pittsburgh, PA.), Anderson, B.K, Schiltz, J.C, Xu, L, Sved, A.F, Stricker, E.M

“…Cardiac vagal afferents terminating in the nucleus of the solitary tract (NTS) are believed to participate in stimulating neurohypophysial secretion of…”
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Stimulation of alpha 2-adrenergic receptors in nucleus tractus solitarius is required for the baroreceptor reflex by Sved, A F, Tsukamoto, K, Schreihofer, A M

“…Bilateral injection into the nucleus tractus solitarius (NTS) of the alpha 2-adrenergic receptor antagonist yohimbine produced a dose-related (10-500 pmol)…”
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BLOOD PRESSURE REGULATION IN BARORECEPTOR-DENERVATED RATS by Sved, Alan F., Schreihofer, Ann M., Jr, Curtis K Kost

“…Key words 1. Arterial baroreceptor denervation produces acute hypertension, but chronically denervated animals have an average arterial pressure that is…”
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