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Background: In this work, we are interested to study for the first time the extragenic polymorphic marker MP6d9 in cystic fibrosis and healthy cohort in Tunisia to establish the contribution of MP6d9 polymorphism in the phenotypic variability of CF patients.
Methods: Our study enrolled 112 CF patients and 100 healthy controls. The analysis of the polymorphic marker MP6d9 was performed using the PCR-RFLP technique.
Results: Statistical difference was found in the genotype and allelic distribution between CF patients and control groups. We found that the 2/2 genotype was higher in CF patients than in controls (58.9% vs 23%). We noted that the 2/2 genotype is associated with severe clinical manifestations.
Conclusion: Based on the above data, it seems that this genotype has led to the deterioration of our patient’s clinical manifestation. This study enabled us to understanding the involvement of the MP6d9 marker in the CF clinical expression in the Tunisian population.
DOI: 10.7754/Clin.Lab.2016.160322
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