2008
Ethyl pyruvate reduces germ cell–specific apoptosis and oxidative stress in rat model of testicular torsion/detorsion
Payabvash S, Kiumehr S, Tavangar SM, Dehpour AR. Ethyl pyruvate reduces germ cell–specific apoptosis and oxidative stress in rat model of testicular torsion/detorsion. Journal Of Pediatric Surgery 2008, 43: 705-712. PMID: 18405719, DOI: 10.1016/j.jpedsurg.2007.12.063.Peer-Reviewed Original ResearchConceptsEthyl pyruvate solutionRinger's ethyl pyruvate solutionProtective effectRight testisTissue damageMPO activityTesticular torsionGroup 2Sperm countGerm cell apoptosis indicesLong-term testicular functionTesticular torsion/detorsionGerm cell-specific apoptosisLipid peroxidationApoptotic tissue damageTestis tissue damageTorsion/detorsionGroup 2 ratsAnti-inflammatory propertiesSprague-Dawley ratsGroup 24 hoursEpididymal sperm concentrationEthyl pyruvateCell apoptosis indexPyruvate solution
2007
Endogenous 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 ResearchMeSH KeywordsAnalgesics, OpioidAnimalsApoptosisBiological FactorsCholestasisChronic DiseaseDisease Models, AnimalDose-Response Relationship, DrugHepatocytesLiverNaltrexoneNarcotic AntagonistsOxidative StressRatsConceptsAnti-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
2005
Paradoxical dose- and time-dependent regulation of superoxide dismutase and antioxidant capacity by vitamin E in rat
Golestani A, Rastegar R, Shariftabrizi A, Khaghani S, Payabvash SM, Salmasi AH, Dehpour AR, Pasalar P. Paradoxical dose- and time-dependent regulation of superoxide dismutase and antioxidant capacity by vitamin E in rat. Clinica Chimica Acta 2005, 365: 153-159. PMID: 16183047, DOI: 10.1016/j.cca.2005.08.008.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntioxidantsDose-Response Relationship, DrugMaleRatsRats, Sprague-DawleySuperoxide DismutaseVitamin EConceptsDosing groupVitamin ESOD activityAntioxidant capacitySignificant decreaseErythrocyte SOD activityPlasma antioxidant capacityVitamin E/Significant increaseEndogenous antioxidant systemNon-toxic dosesDose-dependent mannerTotal antioxidant capacitySerum levelsSame dosesBody weightNontoxic dosesWeeksControl levelsTime-dependent regulationAntioxidant defenseDosesSuperoxide dismutaseRatsAntioxidant system