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Altered expression of micro-RNA 199a and increased levels of cardiac SIRT1 protein are associated with the occurrence of atrial fibrillation after coronary artery bypass graft surgery

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Date

2016

Author

Yamaç, Aylin Hatice
Küçükbuzcu, Sıtkı
Ozansoy, Mehmet
Gök, Özlem
Öz, Kürşat
Ertürk, Mehmet
Yılmaz, Emre
Ersoy, Burak
Zeybek, Rahmi
Göktekin, Ömer
Kılıç, Ülkan

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Yamaç, A. H., Küçükbuzcu, S., Ozansoy, M., Gök, Ö., Öz, K., Ertürk, M. ... Kılıç, Ü. (2016). Altered expression of micro-RNA 199a and increased levels of cardiac SIRT1 protein are associated with the occurrence of atrial fibrillation after coronary artery bypass graft surgery. Cardiovascular Pathology, 25(3), 232-236. https://dx.doi.org/10.1016/j.carpath.2016.02.002

Abstract

Background: Postoperative atrial fibrillation (POAF) is a potentially life-threatening complication after coronary artery bypass graft (CABG) surgery. The expression of the cardioprotective SIRT1 protein with its antioxidant activity is increased in cardiac tissue of patients suffering from POAF. So far, information is lacking about the relationship between SIRT1 regulating micro RNAs (miRs), SIRT1 protein and the occurrence of POAF. Methods: A total of 63 patients undergoing CABG were recruited, and biopsies were obtained from the right atrial appendage during cannulation. Postoperative, all patients were rhythm-monitored until discharge and randomized to POAF (n= 20) or sinus rhythm (n= 43). The expression of the micro RNAs miR-199a and miR-195 was quantified by real-time PCR. SIRT1 protein was detected by western blot analysis. Results: The relative expression of miR-199a in the POAF group was significantly decreased compared to the control group (0.77 +/- 0.27 vs. 1.11 +/- 0.69, P=. 022) Accordingly, SIRT 1 protein was significantly induced in tissue probes of patients with POAF (P<. 001). Conclusion: Altered expression of the SIRT1 protein regulating miR-199a in human atrial tissue was found to be related to the occurrence of POAF, indicating its usefulness as a biomarker for cardiac surgery management.

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Q3

xmlui.dri2xhtml.METS-1.0.item-scopusquality

Q1

Source

Cardiovascular Pathology

Volume

25

Issue

3

URI

https://dx.doi.org/10.1016/j.carpath.2016.02.002
https://hdl.handle.net/20.500.12511/2125

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  • Scopus İndeksli Yayınlar Koleksiyonu [5133]
  • WoS İndeksli Yayınlar Koleksiyonu [5391]



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