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Clinical Significance of Periostin in Egyptian Asthmatic Patients

Amr Yehia, Mohamed Badr, Fawzy El Emery, Mohamed El-Zahabi.

Objective: Asthma is an inflammatory disease of the airways appropriate to pulmonary eosinophilia, airway hyperresponsiveness (AHR) and mucus overproduction. We now investigate the level of Periostin serum concentration in Egyptian asthmatic patients and define any correlation between periostin and Pulmonary Function Tests (PFT) Methods: 80 subjects were enrolled in the study: 20 control (11 male and 9 female), 28 atopic asthmatic patients (19 male and 9 female) and 32 non- atopic asthmatic patients (14 male and 18 female).Blood samples were obtained from the subjects for laboratory investigations which divided into two aliquots, First aliquot for whole blood used for complete blood count to determine blood eosinophil count by using Sysmex XP-300 and Second aliquot for serum used for estimation of Periostin, Transforming Growth Factor (TGF-╬▓1) and Total Immunoglobulin (IgE) using enzyme-linked immunosorbent assays(ELISA).Results: Periostin concentrations were significantly higher in atopic and non- atopic groups (mean▒SE; 6889▒393.8 and 6212▒348.8 pg/ml respectively) compared to control group (3053▒446.5 pg/ml) at P < 0.05.TGF-╬▓1 were significantly higher in atopic and non- atopic groups (mean▒SE;75.83 ▒1.53and 73.47▒1.09 pg/ml respectively) compared to control group (51.26▒2.65 pg/ml) at P < 0.05and IgE were significantly higher in atopic group (mean▒SE;151.3▒15.10IU /ml) compared to control group and non- atopic groups (52.47▒3.045 and 48.51▒1.827 IU /ml respectively) at P < 0.05.Periostin correlated negatively with PFT which Forced Vital Capacity (FVC), Forced Expiratory Volume1(FEV1) and Forced Expiratory Volume 1% (FEV1%).Conclusions: Serum Periostin is increased in Egyptian asthmatic (atopic and non- atopic) patients compared to control and Periostin correlated negatively with pulmonary function tests in asthmatic patients. Asthma is the most significant variable relates to high Periostin serum concentration.

Key words: Asthma, atopic and non- atopic, IgE, Periostin, TGF-╬▓1.

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