The effects of etomidate on the contraction of pregnant rat uterine smooth muscle / 대한마취과학회지
Korean Journal of Anesthesiology
;
: 84-87, 2009.
Article
Dans Coréen
| WPRIM
| ID: wpr-172876
ABSTRACT
BACKGROUND:
It has been reported that etomidate has the relaxant effects on vascular, tracheal, and non-pregnant uterine smooth muscle in vitro. The purpose of this study was to investigate the relaxant effects of etomidate on the contraction of the pregnant rat uterine smooth muscle.METHODS:
Uterine muscle tissues were obtained from pregnant rats (n = 15). The uterine segments were mounted in organ baths filled with Krebs solution. After oxytocin-induced contractile activity had been established, etomidate in incremental concentrations (10(-7) to 10(-3) M) was added cumulatively to the bath, each administered 20 min apart, and resultant changes in contractile activity were continuously recorded. EC5 (effective concentration of 5% reduction), EC25, EC50, EC75, and EC95 on active tension were calculated using a probit model.RESULTS:
Etomidate (10(-7) to 10(-3) M) induced dose-dependent decreases in amplitude and frequency of uterine contraction. The EC50 of etomidate on active tension were 5.91 x 10(-5) M.CONCLUSIONS:
These results demonstrate that etomidate had inhibitory effects on pregnant rat uterine muscle at supraclinical concentration (5.91 x 10(-5) M).
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Contraction utérine
/
Bains
/
Ocytocine
/
Contrats
/
Étomidate
/
Solution isotonique
/
Muscles lisses
/
Myomètre
Limites du sujet:
Animaux
langue:
Coréen
Texte intégral:
Korean Journal of Anesthesiology
Année:
2009
Type:
Article
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