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Full-Text Articles in Medicine and Health Sciences
Hydrogen Sulfide As An Allosteric Modulator Of Atp Sensitive Potassium Channels In Colonic Inflammation., Aravind Gade
Hydrogen Sulfide As An Allosteric Modulator Of Atp Sensitive Potassium Channels In Colonic Inflammation., Aravind Gade
Theses and Dissertations
The ATP sensitive potassium channel (KATP) in mouse colonic smooth muscle cell is a complex containing a pore forming subunit (Kir6.1) and a sulfonyl urea receptor subunit (SUR2B). These channels are responsible for maintaining the cellular excitability of the smooth muscle cell which in turn regulates the motility patterns in the colon. We used whole-cell voltage-clamp techniques to study the alterations in these channels in smooth muscle cells in experimental model of colitis (colonic inflammation). Colitis was induced in BALB/C mice following an intracolonic administration of trinitrobenzene sulfonic acid (TNBS). KATP currents were measured at Vh -60 mV in high …
Mechanisms Of Glybenclamide-Mediated Anti-Arrhythmia And Ischemic Conditionining In A Rat Model Of Myocardial Infarction: Role Of Yohimbine Treatment, Ömer Bozdoğan, Ersöz Gonca, Eylem Suveren Ti̇ryaki̇, Fati̇h Gökçe
Mechanisms Of Glybenclamide-Mediated Anti-Arrhythmia And Ischemic Conditionining In A Rat Model Of Myocardial Infarction: Role Of Yohimbine Treatment, Ömer Bozdoğan, Ersöz Gonca, Eylem Suveren Ti̇ryaki̇, Fati̇h Gökçe
Turkish Journal of Medical Sciences
Glibenclamide (Glyburide), a widely used second-generation sulfonylurea hypoglycemic agent, is a known specific blocker of adenosine triphosphate (ATP) sensitive potassium (K+) channels. Although the blockage of the ATP dependent potassium channel reduces arrhythmia, it increases enfarct size. Yohimbine is an alpha-2 blocker that reduces infarct size as suggested by several studies. We hypothesized that a combination of yohimbine and glibenclamide may be more effective in reducing the arrhythmia following ligation. The arteria descendence (LAD) branch of the left coronary artery in conscious rats was ligated and arrhythmia was recorded during the 15 min following coronary ligation. Sixteen hours after coronary …