DISTRIBUTION AND ELIMINATION OF INTRAVENOUSLY INJECTED URINARY TRYPSIN-INHIBITOR

被引:39
作者
JONSSONBERLING, BM [1 ]
OHLSSON, K [1 ]
机构
[1] UNIV LUND,MALMO GEN HOSP,DEPT ANAESTHESIOL,S-21401 MALMO,SWEDEN
关键词
KIDNEY; PROTEASE INHIBITOR; TURNOVER;
D O I
10.3109/00365519109104564
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
Elimination of human urinary trypsin inhibitor (UTI) after intravenous injection of I-125-labelled UTI was followed by serial plasma and urine samples in three male volunteers. The plasma half-life of (IUTI)-I-125 during 0-3 h after injection was 33 min and during the following 4 hours the half-life was 2 hours. Free, biologically active inhibitor was found in the urine during the first four hours after injection. Most of the radioactivity in the urine, however, corresponded to free I-125 probably released during the degradation of UTI in the kidney. The distribution of UTI was studied after injection of (IUTI)-I-125 in rats by measurement of radioactivity in excised organs. Fifteen min after the injection 44% of the radioactivity was found in the kidneys and 9% in the liver, implying that the kidneys are the primary site of UTI metabolism.
引用
收藏
页码:549 / 557
页数:9
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