Elif Funda Sener et al. Zuhal Hamurcu Serpil Taheri Reyhan Tahtasakal … Nesrin Delibasi Deniz Elcik Ecmel Mehmetbeyoglu Aydin Tuncay Fatma Dal Keziban Korkmaz Bayram Isın Gunes Omer Naci Emirogullari
Abstract
Background
Coronary artery disease (CAD) due to myocardial ischemia causes permanent loss of heart tissue.
Objectives
We aimed to demonstrate the possible damage to the myocardium at the molecular level through the mechanisms of autophagy and apoptosis in coronary bypass surgery patients.
Methods
One group was administered a Custodiol cardioplegia solution, and the other group was administered a Blood cardioplegia solution. Two myocardial samples were collected from each patient during the operation, just before cardiac arrest and after the aortic cross-clamp was released. The expressions of autophagy and apoptosis markers were evaluated. The level of statistical significance adopted was 5%.
Results
The expression of the BECLIN gene was significant in the myocardial tissues in the BC group (p=0.0078). CASPASE 3, 8, and 9 gene expression levels were significantly lower in the CC group. Postoperative TnT levels were significantly different between the groups (p=0.0072). CASPASE 8 and CASPASE 9 gene expressions were similar before and after aortic cross-clamping (p=0.8552, p=0.8891). In the CC group, CASPASE 3, CASPASE 8, and CASPASE 9 gene expression levels were not found to be significantly different in tissue samples taken after aortic cross-clamping (p=0.7354, p=0.0758, p=0.4128, respectively).
Conclusions
With our findings, we believe that CC and BC solutions do not have a significant difference in terms of myocardial protection during bypass operations.