ENDOTOXEMIA IS MASKED IN FUNGAL INFECTION DUE TO ENHANCED ENDOTOXIN CLEARANCE BY BETA-GLUCAN

被引:0
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作者
YOKOTA, M
TSUJINAKA, T
KAMBAYASHI, J
WATASE, M
SAKON, M
MORI, T
机构
关键词
ENDOTOXINS; GLUCANS; MYCOTIC INFECTIONS;
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R61 [外科手术学];
学科分类号
摘要
Employing a novel turbidimetric assay, the amount of endotoxin and beta-glucan in plasma was monitored in postoperative patients suffering from both bacterial and fungal infections. The patients, whose beta-glucan level was markedly elevated, were always negative for endotoxin, suggesting a possible role of beta-glucan in the clearance of circulating endotoxin. In order to test the above hypothesis, effects of beta-glucan (carboxy methylated curdlan or lentinan) on endotoxin clearance were studied in rabbits. beta-glucan (4-mu-g/kg or 40-mu-g/kg) was intravenously administered to rabbits which received 4-mu-g/kg endotoxin injection, simultaneously or 120 min before the injection. Either of the beta-glucans increased the endotoxin clearance in a dose-dependent manner, and the preinjection of beta-glucan was more effective than the coinjection. The increased amount of plasma beta-glucan results in the unexpectedly low level of plasma endotoxin, which may be removed by the reticuloendothelial system activated by beta-glucan, in cases with both bacterial and fungal infections. Thus, it is important to recognize that endotoxemia may be masked by the coexisting fungal infection.
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页码:255 / 260
页数:6
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