Publication: Ion channels: new targets for the next generation of tocolytics agents.
Issued Date
2006-10-01
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ISSN
01252208
Other identifier(s)
2-s2.0-35248879320
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of the Medical Association of Thailand = Chotmaihet thangphaet. Vol.89 Suppl 4, (2006)
Suggested Citation
Boonsri Chanrachakul Ion channels: new targets for the next generation of tocolytics agents.. Journal of the Medical Association of Thailand = Chotmaihet thangphaet. Vol.89 Suppl 4, (2006). Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/23569
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Title
Ion channels: new targets for the next generation of tocolytics agents.
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Abstract
Ion channels are interesting molecules since they mediate not only uterine contraction but also uterine relaxation. We have examined the expression, function, and correlation between the large conductance calcium-activated potassium (BKCa) channel, beta2 adrenoceptor (AR), and long-lasting (L) type calcium (Ca2+) channel. These are the main channels and receptor that are involved in the uterine contraction/ relaxation process. Our evidence has shown that BKCa channel is closely correlated with beta2 AR in mediating uterine relaxation. Both proteins are situated in close proximity on the plasma membrane of human myometrium and are downregulated approximately 50% after the onset of labor. Interestingly, L type Ca2+ channel, which involves in the contraction pathway, seems to be in the same compartmentation as BKCa channel/ beta2 AR macromolecular complex. Further studies are now being conducted to identify the signaling complex components that could potentially be a target for new tocolytic agents.