Browsing by Subject "Asthma"

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Open Access
Contribution of plasma microparticles to the clinical manifestation of allergic diseases
(Turkish Society of Immunology, 2012-04) Kahraman, Tamer; Erkoçoğlu, M.; Azkur, D.; Kocabaş, C. N.; Gürsel, İhsan
Microparticles (MPs) are nanovesicles secreted from wide variety of cells. They have role in cellular communications in addition to their physiological roles in several diseases. In this study, we investigated roles of MPs in allergic diseases. Method Peripheral blood from 43 asthma, 15 atopic dermatitis and 13 healthy subjects were collected. MPs were isolated via differential centrifugation and subjected to Annexin-V staining together with different cell specific surface markers (CD9, CD14, CD42a, CD69 and CD105) and analyzed by FACS. Internalization of MPs by PBMCs were assessed by SP-DiOC staining. Results FACS analysis demonstrated that number of MPs in ml plasma was 8,3 ± 1,5 x105, 3,2 ± 1,8 x105, 1,9 ± 0,8 x105, and 3,2 ± 2,2 x105 in healthy, atopic dermatitis, asthma controlled and asthma attack subjects, respectively.
Open Access
Effects of obesity on airway and systemic inflammation in asthmatic children
(S. Karger AG, 2021-03-22) Vezir, Emine; Civelek, Ersoy; Dibek Misirlioglu, Emine; Toyran, Muge; Capanoglu, Murat; Karakus, Esra; Kahraman, Tamer; Ozguner, Meltem; Demirel, Fatma; Gürsel, İhsan; Kocabas, Can Naci
Obese asthma is a complex syndrome with certain phenotypes that differ in children and adults. There is no clear evidence regarding the presence of additive or synergistic pathological interaction between obesity and asthma in children. Objectives: Our aim was to demonstrate the interaction of obesity and asthma in children in terms of airway and systemic inflammation by a controlled observational study. Methods: Four groups were formed: asthma obese (AO), asthma nonobese (ANO), non-AO (NAO), nonasthma nonobese (NANO). Spirometry test, fractional exhaled nitric oxide (FeNO) test, skin prick test, serum inflammatory biomarkers (C-reactive protein, C3, C4, adiponectin, leptin, resistin, periostin, YKL-40, Type 1, and Type 2 cytokines) were conducted and evaluated in all participants. Sputum inflammatory cells (sputum eosinophils and neutrophils) were evaluated in patients who could produce induced sputum and obesity-asthma interactions were determined. Results: A total of 153 participants aged 6–18 years were included in the study, including the AO group (n = 46), the ANO group (n = 45), the NAO group (n = 30), and the NANO group (n = 32). IL-4 (p < 0.001), IL-5 (p < 0.001), IL-13 (p < 0.001), resistin (p < 0.001), and YKL-40 (p < 0.001) levels were higher in patients with asthma independent of obesity. The lowest adiponectin level was found in the AO group and obesity-asthma interaction was detected (p < 0.001). Sputum eosinophilia (p < 0.01), sputum neutrophilia (p < 0.01), and FeNO levels (p = 0.07) were higher in asthmatic patients independent of obesity. In the group with paucigranulocytic inflammation, resistin and YKL-40 levels were significantly lower than in the group without paucigranulocytic inflammation (p < 0.01). Conclusion: No interaction was found between obesity and asthma in terms of airway inflammation. Interaction between obesity and asthma was shown in terms of adiponectin level and resistin/adiponectin and leptin/adiponectin ratios. It was found that serum YKL-40 and resistin levels could be associated with airway inflammation.