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Titolo:
Cold-induced hypertension and diuresis
Autore:
Sun, Z; Cade, R;
Indirizzi:
Univ Florida, Coll Med, Dept Physiol, Gainesville, FL 32610 USA Univ Florida Gainesville FL USA 32610 Physiol, Gainesville, FL 32610 USA Univ Florida, Coll Med, Dept Med, Gainesville, FL 32610 USA Univ Florida Gainesville FL USA 32610 Dept Med, Gainesville, FL 32610 USA
Titolo Testata:
JOURNAL OF THERMAL BIOLOGY
fascicolo: 1-2, volume: 25, anno: 2000,
parte:, 2
pagine: 105 - 109
SICI:
0306-4565(200002/04)25:1-2<105:CHAD>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLOOD-PRESSURE; CHRONIC EXPOSURE; ANGIOTENSIN-II; DIPSOGENIC RESPONSIVENESS; RATS; ELEVATION; SYSTEM;
Keywords:
cold-induced hypertension; blood pressure; cardiac and renal hypertrophy; food and water intake; urine output; urine osmolality; diuresis; cold exposure; AVP; AT-1 receptor; thermoregulation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Sun, Z Univ Florida, Coll Med, Dept Physiol, Box 100274, Gainesville, FL 32610 USA Univ Florida Box 100274 Gainesville FL USA 32610 ille, FL 32610 USA
Citazione:
Z. Sun e R. Cade, "Cold-induced hypertension and diuresis", J THERM BIO, 25(1-2), 2000, pp. 105-109

Abstract

Chronic exposure of rats to mild cold (5 degrees C) resulted in a significant elevation of blood pressure (BP) within 4 days. Peripheral administration of losartan (AT(1) receptor antagonist) could decrease the elevated BP to the central level. AT(1) receptor mRNA was significantly increased in resistance arteries by exposure to cold. Chronic exposure to cold was accompanied by diuresis and a decrease in urine osmolality. The circulating level of arginine vasopressin (AVP) was not affected significantly by cold exposure. It is concluded that cold-induced hypertension may be maintained by up-regulation of AT(1) receptors. Cold-induced diuresis may be due to decreasedrenal responsiveness to AVP rather than inhibition of AVP release. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 12:34:36