6533b7d9fe1ef96bd126c499

RESEARCH PRODUCT

Nitric oxide metabolites, leukocyte activation markers and oxidative status in dialyzed subjects.

R. IatrinoCaterina CarolloB. BondìMaria MontanaGregorio CaimiR. Lo Presti

subject

Malemedicine.medical_treatmentActivation markersOxidative phosphorylationHemodialysis Oxidative status Nitric oxide Elastase MyeloperoxidasePharmacologyNitric OxideThiobarbituric Acid Reactive SubstancesAntioxidantsNitric oxidechemistry.chemical_compoundRenal DialysisLeukocytesmedicineHumansAgedPeroxidasechemistry.chemical_classificationbiologyElastaseHematologyGeneral MedicineMiddle AgedOxidative StressEnzymechemistryNephrologyMyeloperoxidaseImmunologybiology.proteinKidney Failure ChronicFemaleHemodialysisLeukocyte Elastase

description

<i>Aims:</i> Our purpose was to evaluate, in a group of 42 end-stage renal disease patients who regularly undergo hemodialysis, some indexes of leukocyte activation, nitric oxide metabolites (NOx) and other parameters that reflect the oxidative stress before and after a standard hemodialysis session. <i>Methods:</i> Elastase and myeloperoxidase (MPO) were determined by means of ELISA. The NO production was evaluated by a micromethod which measures the concentration of NOx. The oxidation of polyunsaturated fatty acids was evaluated in plasma by detection of thiobarbituric acid-reactive substances (TBARS). Total antioxidant status (TAS) was obtained using spectrophotometry. <i>Results:</i> At baseline, we observed an increase of elastase, NOx, TBARS and TAS, without any variation of MPO. After the dialysis session, we found an increase in elastase and MPO, a decrease in NOx and TAS and no variation in TBARS. No modification occurred after subdividing the patients in two subgroups. <i>Conclusions:</i> Our data confirm the involvement of leukocytes and oxidative stress in hemodialysis patients.

yearjournalcountryeditionlanguage
2008-07-09
10.1159/000193218http://hdl.handle.net/10447/37266