Wos İndeksli Açık & Kapalı Erişimli Yayınlar
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Item Thrombin lag time is increased in children with mild asthma(2019) Koksal, B.T.; Eker, I.; Ozbek, N.Y.; Dogan, I.; Ozbek, O.Y.; 0000-0001-9580-7656; 30262412Background: Inflammation and coagulation are closely linked events. Thrombin is the key enzyme in coagulation system and also has roles in inflammation. Objective: The aim of our study was to evaluate thrombin generation in children with mild asthma. Methods: Forty-two children with mild asthma and 49 healthy children were included in the study. All patients performed spirometry. Thrombin generation tests (TGT) were performed with a calibrated automated thrombogram (CAT) in children without asthma exacerbation during the last six months. During CAT assay thrombogram curves were obtained. The area under the curve showed endogenous thrombin potentials and indicated the total amount of endogenous thrombin generated; the peak height showed the highest thrombin value, thrombin lag time and time to thrombin peak were measured. Results: Thrombin lag time was significantly longer in children with asthma (3.98 1.2 min) compared to those in the control group (3.29 +/- 0.6 min) (p < 0.01). Children with asthma also had longer thrombin tail time compared to the control group (19.5 +/- 8.9 min vs. 16.7 +/- 2.9 min, p= 0.02). Thrombin peak was inversely correlated with FEF 25-75 (r =-0.41, p < 0.01). Thrombin lag time was inversely correlated with FEF 25-75 (r=-0.39, p<0.01). Conclusion: Inflammation in mild asthma seems to disturb coagulation but this disturbance may not be so strong as to increase thrombin levels and may only affect the initiation phase of thrombin generation. (C) 2018 SEICAP. Published by Elsevier Espana, S.L.U. All rights reserved.Item Misdiagnosis of Asthma May Delay the Post Infectious Bronchiolitis Obliterans Diagnosis(2019) Onay, Zeynep Reyhan; Gursoy, Tugba Ramasli; Aslan, Ayse Tana; Eyubolgu, Tugba Sismanlar; Kibar, Busra Sultan; Pekcan, Sevgi; Hangu, Melih; Kose, Mehmet; Budakoglu, Isil Irem; Gokturk, BaharItem Angiopoietin-1, Angiopoietin-2, and Periostin Levels in Children with Recurrent Wheeze(2018) Koksal, Burcu Tahire; Aydin, Beril Ozdemir; Tekindal, Agah; Ozbek, Ozlem YilmazBackground: Recurrent wheeze (RW) is frequent in preschool children. Wheezing phenotypes, asthma predictive index (API), and modified API (mAPI) have been described for clinical purposes. Our aim was to examine whether inflammatory markers including serum angiopoietin (Ang)-1, Ang-2, and periostin levels differ according to wheezing phenotypes and mAPI. Materials and Methods: Ninety-eight children who were <4 years of age with history of at least 4 episodes of wheezing during the past 12 months and 51 age-matched healthy controls were included in the study. Children with RW were classified according to wheezing phenotypes as episodic viral wheeze or multitrigger wheeze, and positive or negative mAPI. Blood for Ang-1, Ang-2, and periostin levels was drawn during wheezing episode-free periods. Results: Atopic children with RW (31.4 +/- 34.4 ng/mL) demonstrated higher serum Ang-1 levels than nonatopic children (16.5 +/- 13.8 ng/mL) with RW (P = 0.03). When we compared children according to wheezing phenotypes, we could not find any difference in serum Ang-1, Ang-2, and periostin levels between groups. Children with positive mAPI showed similar Ang-1, Ang-2, and periostin levels with children having negative API and healthy children. Conclusions: We have found higher serum Ang-1 levels in atopic children with RW, and this result might be explained by increased inflammation. The evidence was not strong enough to associate serum Ang-1, Ang-2, or periostin and asthma in preschool children with RW. However, Ang-1 can be a candidate for investigating its role in predicting atopic children and diagnosing atopic childhood asthma.