open access

Vol 48, No 2 (2010)
Original paper
Published online: 2010-08-03
Submitted: 2011-12-19
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The estimation of oxidative stress markers and apoptosis in right atrium auricles cardiomyocytes of patients undergoing surgical heart revascularisation with the use of warm blood cardioplegia.

Rafal Nowicki, Jolanta Saczko, Julita Kulbacka, Anna Choromanska, Malgorzata Dumanska, Barbara Krajewska, Malgorzata Daczewska, Andrzej Dumanski, Wojciech Kustrzycki
DOI: 10.2478/v10042-010-0012-4
·
Folia Histochem Cytobiol 2010;48(2):202-207.

open access

Vol 48, No 2 (2010)
ORIGINAL PAPERS
Published online: 2010-08-03
Submitted: 2011-12-19

Abstract

Oxidative stress markers and apoptosis were estimated during elective surgical heart revascularization. Eight patients with good ejection fraction underwent coronary artery bypass grafting (CABG) with the use of warm blood cardioplegia. Two right atrium auricle biopsy specimens were collected before and after the operation. Specimens underwent immunocytochemical analysis of mitochondrial manganese superoxide dismutase (MnSOD) expression and apoptosis estimation by the TUNEL method. Ultrastructure analysis under electron microscope was made. Satisfactory results of the operation were obtained. After CABG the MnSOD expression increase in sections of auricles was observed through the increase of stain intensity and the percentage of cells with positive stain (from 30 to 80%). The apoptotic cells percentage remained at approximately the same level. Under the electron microscope insignificant pathological changes were observed. On this basis one may assume that in the case of cardiosurgical procedures with short aorta cross-clamping time and low operation risk level the application of cardioplegia sufficiently prevents reactive oxygen forms (ROF) cytotoxic activity although it does not inhibit the expression of oxidative stress (OS) markers. In our opinion the method of examining right atrium sections is safe and provides results comparable with other publications. It may also be a voice in the discussion on new methods of heart protection during cardiac surgery procedures.

Abstract

Oxidative stress markers and apoptosis were estimated during elective surgical heart revascularization. Eight patients with good ejection fraction underwent coronary artery bypass grafting (CABG) with the use of warm blood cardioplegia. Two right atrium auricle biopsy specimens were collected before and after the operation. Specimens underwent immunocytochemical analysis of mitochondrial manganese superoxide dismutase (MnSOD) expression and apoptosis estimation by the TUNEL method. Ultrastructure analysis under electron microscope was made. Satisfactory results of the operation were obtained. After CABG the MnSOD expression increase in sections of auricles was observed through the increase of stain intensity and the percentage of cells with positive stain (from 30 to 80%). The apoptotic cells percentage remained at approximately the same level. Under the electron microscope insignificant pathological changes were observed. On this basis one may assume that in the case of cardiosurgical procedures with short aorta cross-clamping time and low operation risk level the application of cardioplegia sufficiently prevents reactive oxygen forms (ROF) cytotoxic activity although it does not inhibit the expression of oxidative stress (OS) markers. In our opinion the method of examining right atrium sections is safe and provides results comparable with other publications. It may also be a voice in the discussion on new methods of heart protection during cardiac surgery procedures.
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About this article
Title

The estimation of oxidative stress markers and apoptosis in right atrium auricles cardiomyocytes of patients undergoing surgical heart revascularisation with the use of warm blood cardioplegia.

Journal

Folia Histochemica et Cytobiologica

Issue

Vol 48, No 2 (2010)

Article type

Original paper

Pages

202-207

Published online

2010-08-03

DOI

10.2478/v10042-010-0012-4

Bibliographic record

Folia Histochem Cytobiol 2010;48(2):202-207.

Authors

Rafal Nowicki
Jolanta Saczko
Julita Kulbacka
Anna Choromanska
Malgorzata Dumanska
Barbara Krajewska
Malgorzata Daczewska
Andrzej Dumanski
Wojciech Kustrzycki

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