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dc.contributor.authorChang, Chien-Jungen_US
dc.contributor.authorCheng, Chen-Chuanen_US
dc.contributor.authorYang, Ten-Fangen_US
dc.contributor.authorChen, Yao-Changen_US
dc.contributor.authorLin, Yung-Kuoen_US
dc.contributor.authorChen, Shih-Annen_US
dc.contributor.authorChen, Yi-Jenen_US
dc.date.accessioned2015-07-21T08:29:10Z-
dc.date.available2015-07-21T08:29:10Z-
dc.date.issued2015-04-01en_US
dc.identifier.issn0167-5273en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijcard.2015.03.066en_US
dc.identifier.urihttp://hdl.handle.net/11536/124687-
dc.description.abstractBackground: Non-steroidal anti-inflammatory drugs (NSAIDs) increase the risk of atrial fibrillation (AF). This study investigated whether selective and non-selective NSAIDs differentially regulate the arrhythmogenesis of pulmonary veins and atria. Methods: Conventional microelectrodes were used to record action potentials (APs) in isolated rabbit PVs, sinoatrial node (SAN), left atrium (LA), and right atrium (RA) preparations before and after celecoxib or indomethacin administration. A whole-cell patch clamp was used to record the sodium-calcium exchanger (NCX) current, L-type calcium current (ICa-L), and late sodium current (INa-late) before and after celecoxib administration in isolated PV cardiomyocytes. Results: Celecoxib (0.3, 1, and 3 mu M) reduced PV spontaneous beating rates, and induced delayed afterdepolarizations and burst firings in four of eight PV preparations (50%, p < 0.05). Celecoxib also reduced SAN beating rates and decreased AP durations (APDs) in RA and LA, but did not change the resting membrane potential. Indomethacin (0.3, 1, 3, and 10 mu M) changed neither the PV or SAN beating rates nor RA APDs, but it reduced LA APDs. Celecoxib (3 mu M) significantly increased the NCX current and decreased the ICa-L, but did not change the INa-late. Ranolazine (10 mu M) suppressed celecoxib (3 mu M)-induced PV burst firings in 6 (86%, p < 0.05) of 7 PVs. KB-R7943 (10 mu M) suppressed celecoxib (3 mu M)-induced PV burst firings in 5 (71%, p < 0.05) of 7 PVs. Conclusions: Selective and non-selective NSAIDs differentially modulate PV and atrial electrophysiological characteristics. Celecoxib increased PV triggered activity through enhancement of the NCX current, which contributed to its arrhythmogenesis. (C) 2015 Elsevier Ireland Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectCelecoxiben_US
dc.subjectIndomethacinen_US
dc.subjectAtrial fibrillationen_US
dc.subjectPulmonary veinen_US
dc.subjectAtriumen_US
dc.subjectRanolazineen_US
dc.titleSelective and non-selective non-steroidal anti-inflammatory drugs differentially regulate pulmonary vein and atrial arrhythmogenesisen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.ijcard.2015.03.066en_US
dc.identifier.journalINTERNATIONAL JOURNAL OF CARDIOLOGYen_US
dc.citation.volume184en_US
dc.citation.spage559en_US
dc.citation.epage567en_US
dc.contributor.department生物科技學系zh_TW
dc.contributor.departmentDepartment of Biological Science and Technologyen_US
dc.identifier.wosnumberWOS:000353763800134en_US
dc.citation.woscount0en_US
Appears in Collections:Articles