Objectives: Studies on sCD200 (OX-2), 25-hydroxyvitamin-D (25(OH)D), homocysteine (hcy), eosinophil cationic peptide (ECP), d-dimer, CXCL8 and fractional exhale nitric oxide concentrations in allergic patients in Mediterranean regions under various climatic conditions have not been performed. In this report, blood samples were taken in May and June during times of high air pollination. This study was performed to compare serum biomolecule concentrations in allergic patients and matched controls and to evaluate the characteristics of allergic disease.
Methods: The study participants (n = 129) included 25 healthy individuals (controls) and 104 allergic patients. Consecutive patients with managed allergic disease (Group II, III, IV and V) above the age of 18 years were included.
Results: In the control group, there was a significant positive correlation between ECP level and body mass index (BMI). Positive correlations among ECP, IgE and OX-2 levels were detected in Group IV. In Group V patients, positive correlations between age and IgE and between BMI and 25(OH)D were identified. Statistical analysis revealed positive correlations among basophil, eosinophil and OX-2 levels, and a negative correlation between ECP and age in Group V.
Conclusion: Overall, these data suggest that hcy, 25(OH)D and OX-2 may be useful biomarkers for conventional clinical measurements.
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