PLASMA-CLEARANCE AND PLASMA HALF-DISAPPEARANCE TIME OF EXOGENOUS THYROTROPIN-RELEASING-HORMONE AND PYROGLUTAMYL-N3IM-METHYL-HISTIDYL PROLINEAMIDE

被引:32
作者
MORLEY, JE
GARVIN, TJ
PEKARY, AE
UTIGER, RD
NAIR, MG
BAUGH, CM
HERSHMAN, JM
机构
[1] UNIV CALIF LOS ANGELES, LOS ANGELES, CA 90024 USA
[2] UNIV PENN, SCH MED, ENDOCRINE SECT, PHILADELPHIA, PA 19174 USA
[3] UNIV S ALABAMA, DEPT BIOCHEM, MOBILE, AL 36688 USA
关键词
D O I
10.1210/jcem-48-3-377
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The plasma clearance rate (PCR) and plasma half-disappearance time (t1/2) of TRH was compared to the PCR and t1/2 of pyroglutamyl-N3im-methyl-histidyl prolineamide (methyl-TRH), a more potent analog of TRH in normal subjects. The PCR for TRH was 1500 ± 329 (SD) ml/min, which was significantly greater than the PCR of methyl-TRH (783 ± 96 ml/min). The t1/2 of TRH was 6.2 min compared to a t1/2 of 11.5 min for methyl-TRH. The slower clearance of methyl-TRH is probably due to the increased resistance to degradation by serum enzymes of methyl-TRH compared to TRH. © 1979 by The Endocrine Society.
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页码:377 / 380
页数:4
相关论文
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VALE W, 1971, ENDOCRINOLOGY, V89, P1685