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Titolo:
High-intensity static magnetic fields modulate skin microcirculation and temperature in vivo
Autore:
Ichioka, S; Minegishi, M; Iwasaka, M; Shibata, M; Nakatsuka, T; Harii, K; Kamiya, A; Ueno, S;
Indirizzi:
Univ Tokyo, Dept Plast Surg, Fac Med, Bunkyo Ku, Tokyo 113, Japan Univ Tokyo Tokyo Japan 113 st Surg, Fac Med, Bunkyo Ku, Tokyo 113, Japan Univ Tokyo, Dept Biomed Engn, Grad Sch Med, Tokyo, Japan Univ Tokyo Tokyo Japan yo, Dept Biomed Engn, Grad Sch Med, Tokyo, Japan
Titolo Testata:
BIOELECTROMAGNETICS
fascicolo: 3, volume: 21, anno: 2000,
pagine: 183 - 188
SICI:
0197-8462(200004)21:3<183:HSMFMS>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
THEORETICAL-ANALYSIS; BLOOD-FLOW;
Keywords:
blood flow; microcirculation, magnetic field exposure; laser Doppler flowmetry; superconducting magnet;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Ichioka, S Univ Tokyo, Dept Plast Surg, Fac Med, Bunkyo Ku, 7-3-1 Hongo, Tokyo 113, Japan Univ Tokyo 7-3-1 Hongo Tokyo Japan 113 Hongo, Tokyo 113, Japan
Citazione:
S. Ichioka et al., "High-intensity static magnetic fields modulate skin microcirculation and temperature in vivo", BIOELECTROM, 21(3), 2000, pp. 183-188

Abstract

We investigated the acute effect of static magnetic fields of up to 8 T onskin blood flow and body temperature in anesthetized rats. These variableswere measured prior to, during, and following exposure to a magnetic fieldin a superconducting magnet with a horizontal bore. The dorsal skin was transversely incised for 1 cm to make a subcutaneous pocket. Probes of a laser Doppler flowmeter and a thermistor were inserted into the pocket and positioned at mid-dorsum to measure skin blood flow and temperature. Another thermistor probe was put into the rectum to monitor rectal temperature. Afterbaseline measurement outside the magnet, the rat was inserted into the bore for 20 min so that mid-dorsum was exactly positioned at the center, wherethe magnetic field was nearly homogeneous. Post-exposure changes were thenrecorded for 20 min outside the bore. Sham-exposed animals were submitted to exactly the same conditions, except that the superconducting magnet was not energized. Skin blood flow and temperature decreased significantly during magnetic field exposure and recovered after removal of the animal from the magnet. The rectal temperature showed a tendency to decrease while the animal was in the magnet. The microcirculatory and thermal reactions in the present study were consistent and agreed with some of the predictions basedon mathematical simulations and model experiments. (C) 2000 Wiley-Liss, Inc.

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Documento generato il 01/04/20 alle ore 20:50:53