Therapeutic metabolic inhibition: hydrogen sulfide significantly mitigates skeletal muscle ischemia reperfusion injury in vitro and in vivo
| Autor: | Peter W. Henderson, Vijay Nagineni, Andrew L. Weinstein, David D. Krijgh, Jason A. Spector, Sunil P. Singh, Daniel J. Kadouch, Daniel C. Rafii |
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| Přispěvatelé: | Cancer Center Amsterdam, Graduate School, Plastic, Reconstructive and Hand Surgery |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Male
Premedication H&E stain Ischemia Apoptosis In Vitro Techniques Pharmacology Myoblasts Mice In vivo Administration Inhalation In Situ Nick-End Labeling medicine Animals Hydrogen Sulfide Muscle Skeletal Cells Cultured Tissue Survival Dose-Response Relationship Drug Myogenesis business.industry Skeletal muscle medicine.disease Mice Inbred C57BL Dose–response relationship medicine.anatomical_structure Reperfusion Injury Anesthesia Surgery business Reperfusion injury |
| Zdroj: | Plastic and reconstructive surgery, 126(6), 1890-1898. Churchill Livingstone |
| ISSN: | 0032-1052 |
| DOI: | 10.1097/prs.0b013e3181f446bc |
| Popis: | Background: Recent evidence suggests that hydrogen sulfide is capable of mitigating the degree of cellular damage associated with ischemia-reperfusion injury. The purpose of this study was to determine whether it is protective in skeletal muscle. Methods: This study used both in vitro (cultured myotubes subjected to sequential anoxia and normoxia) and in vivo (mouse hind-limb ischemia followed by reperfusion) models in which hydrogen sulfide (0 to 1000 M) was delivered before the onset of oxygen deficiency. Injury score and apoptotic index were determined by analysis of specimens stained with hematoxylin and eosin and terminal deoxynucleotidyl transferase–mediated dUTP nick end labeling, respectively. Results: In vitro, hydrogen sulfide reduced the apoptotic index by as much as 99 percent (p 0.001), with optimal protection conferred by raising intravascular hydrogen sulfide to 10 M. In vivo, 10 M hydrogen sulfide delivered before 3 hours of hind-limb ischemia followed by 3 hours of reperfusion resulted in protection against ischemia-reperfusion injury–induced cellular changes, as evidenced by significant decreases in injury score and apoptotic index (by as much as 91 percent; p 0.001). These findings were consistent at 4 weeks after injury and reperfusion. Conclusion: These findings confirm that the preischemic delivery of hydrogen sulfide limits ischemia-reperfusion injury–induced cellular damage in myotubes and skeletal muscle and suggests that, when given in the appropriate dose, this molecule may have significant therapeutic applications in multiple clinical scenarios. (Plast. Reconstr. Surg. 126: 1890, 2010.) |
| Databáze: | OpenAIRE |
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