Oxidative stress markers in patients with hymenoptera venom allergy
Oxidative stress occurs in many allergic and immunologic disorders as a result of the imbalance between the endogenous production of free reactive oxygen species (ROS) and/or the reduction of antioxidant defense mechanisms. Advanced glycation end products (AGEs), advanced oxidation protein products (AOPPs), and nitrosylated proteins (NPs) can be used as markers of oxidative stress and inflammation. Our objective was to examine the serum levels of AGEs, AOPPs, and NPs in patients with allergic reactions to hymenoptera venom before and after ultrarush venom immunotherapy (VIT). The study included two groups of patients: 30 patients allergic to yellow jacket or honey bee venom and treated by aqueous preparation of Vespula spp (26 patients) or Apis mellifera (four patients) VIT, and 30 healthy donors as controls. Blood samples were collected to measure serum levels of AGEs, AOPPs, and NPs at baseline (T1), at the end of the incremental phase of the VIT protocol (T2), and after 15 days (T3). Serum AOPP levels at T1 were significantly higher in comparison with controls (p = 0.001), whereas serum levels of NPs at T1 were significantly lower than those in controls (p < 0.0001). No significant difference in circulating levels of AOPPs, AGEs, and NPs was found during immunotherapy. These findings suggest that, although hymenoptera venom allergy (HVA) is characterized by isolated episodes of reactions to stinging insect venom and is not included among chronic inflammatory diseases, an oxidative stress status occurs in patients suffering from this kind of allergy. Furthermore, VIT does not modify serum levels of these oxidative stress biomarkers.
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Document Type: Research Article
Affiliations: Division of Allergy and Clinical Immunology, Santa Maria della Speranza Hospital, Battipaglia, Azienda Sanitaria Locale Salerno, Salerno, Italy
Publication date: 01 January 2015
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