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Titolo:
Central control of the cardiovascular and erection systems: Possible mechanisms and interactions
Autore:
Rampin, O; Giuliano, F;
Indirizzi:
CHU Bicetre, Assistance Publ Hop Paris, Serv Urol, F-94270 Le Kremlin Bicetre, France CHU Bicetre Le Kremlin Bicetre France F-94270 Le Kremlin Bicetre, France Inst Natl Rech Agron, Lab Neurobiol Fonct Vegetat, Jouy En Josas, France Inst Natl Rech Agron Jouy En Josas France egetat, Jouy En Josas, France
Titolo Testata:
AMERICAN JOURNAL OF CARDIOLOGY
fascicolo: 2A, volume: 86, anno: 2000,
pagine: 19F - 22F
SICI:
0002-9149(20000720)86:2A<19F:CCOTCA>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYMPATHETIC NERVOUS-SYSTEM; PENILE ERECTION; NITRIC-OXIDE; INTRACAVERNOUS PRESSURE; TRANSNEURONAL TRANSPORT; PSEUDORABIES VIRUS; HYPOGASTRIC NERVE; ELICITS INCREASES; RAT; HYPOTHALAMUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Giuliano, F CHU Bicetre, Assistance Publ Hop Paris, Serv Urol, 78 Rue Gen Leclerc, F-94270 Le Kremlin Bicetre, France CHU Bicetre 78 Rue Gen Leclerc Le Kremlin Bicetre France F-94270
Citazione:
O. Rampin e F. Giuliano, "Central control of the cardiovascular and erection systems: Possible mechanisms and interactions", AM J CARD, 86(2A), 2000, pp. 19F-22F

Abstract

Sexual activity is accompanied by vascular changes mediated by parasympathetic and sympathetic outflow to the peripheral organs. The brain stem and spinal cord contain the neurons that innervate the cardiovascular system andthe penis. Heart rate and blood pressure increase, suggesting a decrease of the cranial parasympathetic outflow and on increase of the activity of sympathetic efferent pathways, In contrast, penile erection occurs in response to increased activity of the sacral parasympathetic innervation and a decreased activity of sympathetic pathways, A modulation of the balance between sympathetic and parasympathetic activities may result from an adaptation of an intraspinal network that (1) would be the recipient of peripheral andsupraspinal information; and (2) would coordinate the activity of the different efferent pathways. A variety of nuclei in the medulla, pens, and hypothalamus contain premotor neurons that exert an influence on brain stem andspinal autonomic motoneurons, These descending pathways release amines (noradrenaline, adrenaline, serotonin, dopamine) and peptides, A fine tuning of brain stem and spinal activity is made possible by the great variety of receptor subtypes through which these neuromediators act. More recently, therole of nitric oxide, synthesized and released by different cell populations, has been evaluated in the brain and spinal control of the cardiovascular system and penile erection, Depending on its central neural target, nitric oxide may either activate or inhibit the cardiovascular system, in contrast, its role on the central control of penile erection is only excitatory. (C) 2000 by Excerpta Medica, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 10:19:14