Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Interrelations of vasoconstrictor sympathetic outflow to skin and core temperature during unilateral sole heating in humans
Autore:
Michikami, D; Iwase, S; Kamiya, A; Qi, F; Mano, T; Suzumura, AO;
Indirizzi:
Nagoya Univ, Dept Autonom Neurosci, Environm Med Res Inst, Chikusa Ku, Nagoya, Aichi 4648601, Japan Nagoya Univ Nagoya Aichi Japan 4648601 a Ku, Nagoya, Aichi 4648601, Japan
Titolo Testata:
AUTONOMIC NEUROSCIENCE-BASIC & CLINICAL
fascicolo: 1-2, volume: 91, anno: 2001,
pagine: 55 - 61
SICI:
1566-0702(20010813)91:1-2<55:IOVSOT>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
THERMOREGULATORY VASOCONSTRICTION; BLOOD-FLOW; NERVES; SUDOMOTOR; BALANCE;
Keywords:
microneurography; heat loss; thermoregulation; vasoconstriction; skin sympathetic nerve activity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Iwase, S Nagoya Univ, Dept Autonom Neurosci, Environm Med Res Inst, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan Nagoya Univ Furo Cho Nagoya Aichi Japan 4648601 hi 4648601, Japan
Citazione:
D. Michikami et al., "Interrelations of vasoconstrictor sympathetic outflow to skin and core temperature during unilateral sole heating in humans", AUTON NEURO, 91(1-2), 2001, pp. 55-61

Abstract

The purpose of the present study was to clarify how skin sympathetic nerveactivity (SSNA) influences the core temperature during local heating of the unilateral sole of the foot for 60 min. We recorded SSNA microneurographically from the tibial or peroneal nerve simultaneously with skin blood flow, sweat rate at heated and non-heated sites, with tympanic temperature (T-ty) as the core temperature. Sole heating began to suppress vasoconstrictiveSSNA (vasoconstrictor) after 3.4 +/- 1.1 min, decrease T-ty after 7.4 +/- 2.0 min, activate vasoconstrictor after 33.4 +/- 2.2 min, and increase T-tyafter 45.5 +/- 2.7 min. Regarding the interaction between vasoconstrictor and T-ty during sole heating, we found the following: (1) the capability tosuppress vasoconstrictors; (decrease rate) showed positive correlations with the time delay from vasoconstrictor suppression to the T-ty decrease (r = 0.752, p < 0.05), and with the T-ty decrease rate (r = 0.795, P < 0.05) (2) the T-ty decrease rate was inversely related to the capability to activate vasoconstrictors (increase rate) (r= -0.836 p < 0.05): and (3) the capability to activate vasoconstrictors was inversely related to the time delay from vasoconstrictor activation to the T-ty increase (r= -0.856, p < 0.05) and showed a positive correlation with the T-ty increase rate (r = 0.819, p< 0.05). These significant correlations indicate that the capability to control vasoconstrictors to the skin is one of the determinant factors maintaining core temperature in human thermoregulatory function. In conclusion, human thermoregulatory function is largely dependent on the suppression and activation capability of vasoconstrictors. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 12:03:26