2007
Salutary Effects of N-Acetylcysteine on Apoptotic Damage in a Rat Model of Testicular Torsion
Payabvash S, Salmasi AH, Kiumehr S, Tavangar SM, Nourbakhsh B, Faghihi SH, Dehpour AR. Salutary Effects of N-Acetylcysteine on Apoptotic Damage in a Rat Model of Testicular Torsion. Urologia Internationalis 2007, 79: 248-254. PMID: 17940358, DOI: 10.1159/000107958.Peer-Reviewed Original ResearchConceptsAdministration of NACGerm cell apoptosis indicesIschemia/reperfusion injuryTorsion/detorsionCell apoptosis indexRat modelN-acetylcysteineApoptosis indexReperfusion injuryTesticular torsionProtective effectGroup 2Control groupTesticular torsion/detorsionNAC 30 minRenal tissue damageSprague-Dawley ratsGroup 1 animalsGerm cell apoptosisIntraperitoneal injectionSham operationSaline injectionSystemic administrationTherapeutic doseAntioxidant balanceEndogenous opioids modulate hepatocyte apoptosis in a rat model of chronic cholestasis: the role of oxidative stress
Payabvash S, Kiumehr S, Nezami BG, Zandieh A, Anvari P, Tavangar SM, Dehpour AR. Endogenous opioids modulate hepatocyte apoptosis in a rat model of chronic cholestasis: the role of oxidative stress. Liver International 2007, 27: 538-547. PMID: 17403194, DOI: 10.1111/j.1478-3231.2007.01457.x.Peer-Reviewed Original ResearchConceptsAnti-oxidant balanceBile duct ligationChronic cholestasisEndogenous opioidsCholestatic ratsHepatocyte apoptosisOpioid antagonistRat modelHepatic lipid peroxidation levelsSerum liver enzymesCholestatic liver diseaseEndogenous opioid systemHepatic glutathione levelsAnti-oxidant defensesLipid peroxidation levelsAnti-oxidant enzyme activitiesChronic treatmentNaltrexone treatmentCholestatic animalsLiver diseaseBDL ratsHepatic damageDuct ligationLiver enzymesCholestasis
2006
Nitric oxide modulates glutathione synthesis during endotoxemia
Payabvash S, Ghahremani MH, Goliaei A, Mandegary A, Shafaroodi H, Amanlou M, Dehpour AR. Nitric oxide modulates glutathione synthesis during endotoxemia. Free Radical Biology And Medicine 2006, 41: 1817-1828. PMID: 17157184, DOI: 10.1016/j.freeradbiomed.2006.09.010.Peer-Reviewed Original ResearchConceptsNitric oxide synthesisOxide synthesisHepatic glutathione synthesisGlutathione levelsGlutathione synthesisInjection of lipopolysaccharideHepatic glutathione concentrationHepatic glutathione levelsEndotoxin-induced changesNitric oxide formationIntracellular glutathione levelsEndotoxemic miceLiver glutathioneEndotoxemiaNitric oxideGlutathione peroxidaseGlutathione fluxOxidative stressGlutathione concentrationGlutathione statusAntioxidant defenseGlutathione S-transferaseCysteine precursorLipopolysaccharideGlutathione metabolismOpioid system blockade decreases collagenase activity and improves liver injury in a rat model of cholestasis
Kiani S, Ebrahimkhani MR, Shariftabrizi A, Doratotaj B, Payabvash S, Riazi K, Dehghani M, Honar H, Karoon A, Amanlou M, Tavangar SM, Dehpour AR. Opioid system blockade decreases collagenase activity and improves liver injury in a rat model of cholestasis. Journal Of Gastroenterology And Hepatology 2006, 22: 406-413. PMID: 17295775, DOI: 10.1111/j.1440-1746.2006.04260.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCholestasisCollagenasesDisease Models, AnimalLiver DiseasesMaleNarcotic AntagonistsRatsRats, Sprague-DawleyConceptsOpioid receptor blockadeLiver injuryMMP-2 activityNaltrexone treatmentReceptor blockadeCholestasis-induced liver injuryPlasma nitrite/nitrateNitrite/nitrate levelsMatrix metalloproteinase-2 activitySAH ratioManifestation of cholestasisOpioid agonist administrationSham-operated ratsMetalloproteinase-2 activityLiver enzyme activitiesNitrite/nitrateLiver SAM levelsPlasma enzyme activitiesSAM levelsAgonist administrationBDL animalsCholestatic animalsEndogenous opioidsBDL ratsS-adenosylhomocysteine content