The Bcl I single nucleotide polymorphism of the human glucocorticoid receptor gene h-GR/NR3C1 promoter in patients with bronchial asthma: pilot study |
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| Authors: | Tadeusz Pietras Michał Panek Damian Tworek Katarzyna Oszajca Radosław Wujcik Paweł Górski Piotr Kuna Janusz Szemraj |
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| Affiliation: | (1) Department of Pneumology and Allergology, Medical University of Lodz, Kopcińskiego 22, 90-153 Lodz, Poland;(2) Department of Internal Diseases, Asthma and Allergy, Medical University of Lodz, Kopcińskiego 22, 90-153 Lodz, Poland;(3) Faculty of Psychology, Academic School of Social Psychology in Warsaw, Chodakowska, 19/31, Warsaw, 03-815, Poland;(4) Department of Medical Biochemistry, Medical University of Lodz, Mazowiecka 6/8, Lodz, 92-215, Poland |
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| Abstract: | Bcl I in the promoter polymorphism observed within h-GR/NR3C1 gene may play an important role in the development of bronchial asthma and resistance to GCs in the severe bronchial asthma. The aim of the investigation was to study the correlation between this h-GR/NR3C1 gene polymorphism and occurrence of asthma in the population of Polish asthmatics. Peripheral blood was obtained from 70 healthy volunteers and 59 asthma patients. Structuralized anamnesis, spirometry and allergy skin prick tests were performed in all participants. Genotyping was carried out with PCR–RFLP method. In healthy, non-atopic population variants of Bcl I: GG, GC, CC were found with frequency 0.129/0.471/0.400, respectively. In asthma patients Bcl I: GG, GC, CC occurred with respective frequencies of 0.410/0.462/0.128. Chi-square analysis revealed a significantly different (P < 0.05) distribution between cases and controls for the Bcl I polymorphism. The Bcl I polymorphism of h-GR/NR3C1 gene is significantly associated with bronchial asthma, susceptibility to the development of severe form and resistance to GCs in Polish population. |
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