Acta Medica (Hradec Králové) is an English language multidisciplinary medical journal. Acta Medica publishes reviews, original articles, brief communications, case reports, announcements, and notices. The journal was founded in 1958 under the title “A Collection of Scientific Works of the Charles University’s Faculty of Medicine in Hradec Králové”. The journal is indexed in Chemical Abstracts, CNKI, DOAJ, EBSCO, Hinari, Index Medicus, MEDLINE, Scopus, and Ulrichsweb.

ACTA MEDICA, Vol 64 No 3 (2021), 153–157

Gene Expression of Antioxidant Enzymes in the Resected Intestine in Crohn’s Disease

Otakar Sotona, Eva Peterová, Július Örhalmi, Tomáš Dušek, Alena Mrkvicová, Veronika Knoblochová, Petr Lochman, Ondřej Malý, Jiří Páral, Jan Bureš

announced: 11. 11. 2021


Introduction: The inflammatory process in Crohn’s disease (CD) is closely associated with the formation of reactive oxygen species. Antioxidant enzymes can play an important role in the outcome of CD and may influence postoperative recurrence in these patients. The aim of our study was to evaluate gene expression of intracellular antioxidant enzymes in surgically resected intestinal specimens of patients with CD, both in macroscopically normal and in inflamed tissue. Methods: A total of 28 patients referred for elective bowel resection were enrolled in the study. Full-thickness small intestinal specimens were investigated. Gene expression of antioxidant enzymes – superoxide dismutase (SOD), glutathione peroxidase (GPX), glutathione reductase (GSR) – was evaluated both in macroscopically normal and inflamed samples. Results: There were significantly lower levels of SOD1 mRNA (p = 0.007) and GSR mRNA (p = 0.027) in inflamed tissue compared to macroscopically normal areas. No significant differences were found between affected and non-affected intestinal segments in mRNA for SOD2, SOD3 and GPX. Conclusions: Our pilot data clearly showed that the gene expression of major antioxidant enzymes is not a uniform mechanism in the pathogenesis of Crohn’s disease. Topically decreased gene expression of SOD1 and GSR might facilitate the segmental tissue injury caused by reactive oxygen species.

keywords: Crohn’s disease; gene expression; intestine; antioxidant enzymes; superoxide dismutase; glutathione peroxidase; glutathione reductase

Creative Commons License
Gene Expression of Antioxidant Enzymes in the Resected Intestine in Crohn’s Disease is licensed under a Creative Commons Attribution 4.0 International License.

210 x 297 mm
published: 4 x per year
print price: 150 czk
ISSN: 1211-4286
E-ISSN: 1805-9694