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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Elpek, Gulsum O. Aslan, Mutay Özcan, Filiz Kirac, Ebru Tuzcu, Hazal |
| Description | Country affiliation: Turkey Author Affiliation: Kirac E ( Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, Antalya 07070, Turkey.); Özcan F ( Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, Antalya 07070, Turkey.); Tuzcu H ( Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, Antalya 07070, Turkey.); Elpek GO ( Department of Pathology, Faculty of Medicine, Akdeniz University, Antalya 07070, Turkey.); Aslan M ( Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, Antalya 07070, Turkey.) |
| Abstract | The aim of the present study was to assess omega-3 (n-3) and omega-6 (n-6) polyunsaturated fatty acids (PUFAs) in liver tissue and evaluate changes in the n6-associated inflammatory pathway following liver ischemia/reperfusion (IR) injury. Male Wistar rats which were allowed free access to standard rat chow were included in the study. Blood vessels supplying the median and left lateral hepatic lobes were occluded with an arterial clamp for 60 min, followed by 60 min of reperfusion. Levels of arachidonic acid (AA, C20:4n6), dihomogammalinolenic acid (DGLA, C20:3n6), eicosapentaenoic acid (EPA, C20:5n3) and docosahexaenoic acid (DHA, C22:6n3) in liver tissue were determined by an optimized multiple reaction monitoring method using ultra fastliquid chromatography coupled with tandem mass spectrometry. Phospholipase A2 (PLA2), cyclooxygenase (COX) and prostaglandin E2 (PGE2) were measured in tissue samples to evaluate changes in the n6 inflammatory pathway. Total histopathological score of cellular damage were significantly increased following hepatic IR injury. n3 and n6 PUFA levels were significantly increased in postischemic liver tissue compared to those in nonischemic controls. No significant difference was observed in the AA/DHA and AA/EPA ratio in postischemic liver tissues compared with that in the control. Tissue activity of PLA2 and COX as well as PGE2 levels were significantly increased in postischemic liver tissues compared to those in nonischemic controls. The results of the present study suggested that increased hydrolysis of fatty acids via PLA2 triggers the activity of COX and leads to increased PGE2 levels. Future studies evaluating agents which block the formation of eicosanoids derived from n6 PUFAs may facilitate the development and application of treatment strategies in liver injury following IR. |
| ISSN | 17912997 |
| e-ISSN | 17913004 |
| DOI | 10.3892/mmr.2015.3908 |
| Journal | Molecular Medicine Reports |
| Issue Number | 3 |
| Volume Number | 12 |
| Language | English |
| Publisher | Spandidos Publications |
| Publisher Date | 2015-09-01 |
| Publisher Place | Greece |
| Access Restriction | Open |
| Subject Keyword | Fatty Acids, Omega-3 Fatty Acids, Unsaturated Alanine Transaminase Blood Animals Dinoprostone Ischemia Metabolism Pathology Liver Prostaglandin-endoperoxide Synthases Rats, Wistar Reperfusion Injury Spectrometry, Mass, Electrospray Ionization Research Support, Non-u.s. Gov't Discipline Molecular Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Biochemistry Molecular Biology Cancer Research Molecular Medicine Oncology |
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