Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/129564
DC Field | Value | |
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dc.title | Effect of functional modulation of Ca2+-activated Cl- currents on gravid rat myometrial activity | |
dc.contributor.author | Adaikan, P.G. | |
dc.contributor.author | Adebiyi, A. | |
dc.date.accessioned | 2016-11-08T08:24:02Z | |
dc.date.available | 2016-11-08T08:24:02Z | |
dc.date.issued | 2005-02 | |
dc.identifier.citation | Adaikan, P.G., Adebiyi, A. (2005-02). Effect of functional modulation of Ca2+-activated Cl- currents on gravid rat myometrial activity. Indian Journal of Pharmacology 37 (1) : 21-25. ScholarBank@NUS Repository. | |
dc.identifier.issn | 02537613 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/129564 | |
dc.description.abstract | Objective: This study was carried out to examine the effect of functional modification of Ca2+-activated Cl- currents on contractile activities of isolated gravid rat myometrium. Materials and Methods: Spontaneous rhythmic and oxytocin-induced contractile activities of gravid rat myometrium in the presence and absence of Cl- (in the bathing medium) were studied in a tissue bath system. The effects of niflumic acid (a Cl - channel blocker) on spontaneous and oxytocin-induced contractile activities were also delineated. Results: Replacement of Cl-- containing Tyrode solution with Cl--free medium caused transient increase in myometrial contractile tone for about 15 min (possibly due to rapid efflux of Cl-) after which gradual failure of the spontaneous contractions led to myometrial quiescence within 1 h. Normal spontaneous contractions returned after replacing Cl--free medium with Tyrode solution. In Cl--free medium, oxytocin-induced contractions of the myometrium were significantly reduced by 44 ± 9%. Niflumic acid (30 μM) caused an increase in myometrial contractile tone for about 10 min followed by time-dependent inhibition of spontaneous contractions of the rat myometrium. Moreover, prior addition of 30 μM of niflumic acid to the tissue baths (for 30 min) caused 74 ± 5% reduction of oxytocin-induced contractions of the myometrial strips. Conclusion: Ca2+-activated Cl- currents play a significant role in the spontaneous and oxytocin-induced myometrial activity. Ca2+-activated Cl- conductance could hence be a potential target for the pharmacological control of uterine activity. | |
dc.source | Scopus | |
dc.subject | Myometrium | |
dc.subject | Niflumic acid | |
dc.subject | Oxytocin | |
dc.type | Article | |
dc.contributor.department | OBSTETRICS & GYNAECOLOGY | |
dc.description.sourcetitle | Indian Journal of Pharmacology | |
dc.description.volume | 37 | |
dc.description.issue | 1 | |
dc.description.page | 21-25 | |
dc.description.coden | INJPD | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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