COMPARATIVE-STUDY OF ETHYNYLESTRADIOL METABOLISM IN THE RABBIT, GUINEA-PIG AND RAT

被引:5
|
作者
GHATEI, MA [1 ]
FOTHERBY, K [1 ]
机构
[1] ROYAL POSTGRAD MED SCH, LONDON W12 0HS, ENGLAND
关键词
Ethynyloestradiol; Guinea pig; Metabolism; Oestrogen; Pharmacokinetics; Rabbits; Radioimmunoassay; Rat;
D O I
10.1159/000179014
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Ethynyloestradiol was administered to rabbits, guinea pigs and rats, and the concentration of the steroid in blood was measured by radioimmunoassay. In both rabbits and guinea pigs, levels of conjugated steroid were much higher than those of the freely extractable form. Whereas considerable amounts of steroid were present in a conjugated form in plasma 24 h after injection, none was present at this time in a freely extractable form. There were significant differences between young and adult rabbits and guinea pigs in the rate at which ethynyloestradiol was metabolized. The amounts present in the freely extractable form in rats were higher than in the other two species but no steroid was detected in the conjugated fraction. The results are compared with previous findings in humans. © 1979 S. Karger AG, Basel.
引用
收藏
页码:320 / 326
页数:7
相关论文
共 50 条
  • [21] Different hepatic vascular response to noradrenaline and histamine between guinea-pig and rat
    Shibamoto, T
    Narushima, M
    Ling, YQ
    Shimo, T
    Tsuchida, H
    Kurata, Y
    Ogura, T
    ACTA PHYSIOLOGICA SCANDINAVICA, 2004, 180 (03): : 255 - 263
  • [22] Ontogenetic development of energy-supplying enzymes in rat and guinea-pig heart
    Bass, A
    Stejskalová, M
    Stieglerová, A
    Ostádal, B
    Samánek, M
    PHYSIOLOGICAL RESEARCH, 2001, 50 (03) : 237 - 245
  • [23] SIMILARITIES AND DIFFERENCES BETWEEN CHOLINERGIC SYSTEMS IN THE SUPERIOR COLLICULUS OF GUINEA-PIG AND RAT
    SCHNURR, B
    SPATZ, WB
    ILLING, RB
    EXPERIMENTAL BRAIN RESEARCH, 1992, 90 (02) : 291 - 296
  • [24] SPECIES-DIFFERENCES IN THE DISTRIBUTION OF CENTRAL 5-HT1 BINDING-SITES - A COMPARATIVE AUTORADIOGRAPHIC STUDY BETWEEN RAT AND GUINEA-PIG
    SIJBESMA, H
    SCHIPPER, J
    CORNELISSEN, JCHM
    DEKLOET, ER
    BRAIN RESEARCH, 1991, 555 (02) : 295 - 304
  • [25] Toluene toxicokineties and metabolism parameters in the rat and guinea pig
    Campo, P
    Blachère, V
    Payan, JP
    Cossec, B
    Ducos, P
    ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY, 2006, 21 (03) : 276 - 282
  • [26] EPILEPTIFORM ACTIVITY-INDUCED BY 4-AMINOPYRIDINE IN GUINEA-PIG AND RAT NEOCORTICES
    MATTIA, D
    HWA, GGC
    AVOLI, M
    NEUROSCIENCE LETTERS, 1993, 154 (1-2) : 157 - 160
  • [27] REEXAMINATION OF THE TOPOGRAPHICAL DISTRIBUTION OF MOTONEURONS INNERVATING THE DIGASTRIC MUSCLE IN THE RABBIT AND GUINEA-PIG
    UEMURASUMI, M
    SATODA, T
    TASHIRO, T
    MATSUSHIMA, R
    MIZUNO, N
    ANATOMISCHER ANZEIGER, 1991, 173 (01): : 9 - 16
  • [28] A comparative analysis of bone and cartilage metabolism in two strains of guinea-pig with varying degrees of naturally occurring osteoarthritis
    Huebner, JL
    Hanest, MA
    Beekman, B
    TeKoppele, JM
    Kraus, VB
    OSTEOARTHRITIS AND CARTILAGE, 2002, 10 (10) : 758 - 767
  • [29] Hyperlipidemic Guinea Pig Model: Mechanisms of Triglyceride Metabolism Disorder and Comparison to Rat
    Yang, Runmei
    Gu, Peng
    Song, Xin
    Liu, Fang
    Gao, Nannan
    BIOLOGICAL & PHARMACEUTICAL BULLETIN, 2011, 34 (07) : 1046 - 1051
  • [30] EXPRESSION OF INTERMEDIATE FILAMENT PROTEINS IN THE MATURE INNER-EAR OF THE RAT AND GUINEA-PIG
    KUIJPERS, W
    TONNAER, ELGM
    PETERS, TA
    RAMAEKERS, FCS
    HEARING RESEARCH, 1991, 52 (01) : 133 - 146