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Alterations in Number of Rabbit Myocardial β-Adrenergic Receptors in Endotoxic Shock:Down Regulation in Hyperdynamic Sepsis Model and Effects of Cytokines Administration Mayumi Yahagi 1 , Tomoko Honda 1 , Katsuko Mizumachi 1 , Shinkichi Tezuka 1 , Kazuo Okada 1 1Department of Anesthesiology, Teikyo University School of Medicine Keyword: カテコラミン(catecholamine) , β1受容体(β1-adrenergic receptor) pp.1209-1214
Published Date 1991/12/15
DOI https://doi.org/10.11477/mf.1404900392
  • Abstract
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We investigated alterations in myocardial β-and β1-adrenergic receptor (BAR and B1AR) number during hyperdynamic state induced by endotoxin or cytokines.

[Methods] Twenty-nine Japanese White rabbits were divided into 2 groups. Hearts were removed 18 h after intraperitoneal administration of sterile saline (SAL) or E. coli endotoxin (LPS ; 50μg/kg) (Group E, n=12), or 3 h after intravenous injection of SAL or cytokines (interleukin 1-β ; 5 μg/kg followed by 25 ng/ kg/min for 2 h, or tumor necrosis factor ; 5 μg/kg) (Group C, n=17).


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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