Indian Journal of Human Genetics
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Year : 2013  |  Volume : 19  |  Issue : 2  |  Page : 188-195

CD14 C-159T polymorphism and its association with chronic lung diseases: A pilot study on isocyanate exposed population of Central India

1 Department of Research, Bhopal Memorial Hospital and Research Center, Madhya Pradesh, India
2 Department of Pulmonary Medicine, Bhopal Memorial Hospital and Research Center, Madhya Pradesh, India
3 Department of Surgical Gastroenterology, Bhopal Memorial Hospital and Research Center, Madhya Pradesh, India

Correspondence Address:
Protiti Bose
H35, Apsara Complex, Indrapuri, Sector-A, Bhopal, Madhya Pradesh
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Source of Support: Bhopal Memorial Hospital and Research Centre, Conflict of Interest: None

DOI: 10.4103/0971-6866.116124

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Context: CD14 functions as a multifunctional receptor for bacterial cell wall components including endotoxin and lipopolysaccharide and is likely to influence the cytokine profile and subsequent immunoglobulin E production in response to antigen/allergen contact in allergic phenotypes. Aims: The present study was to investigate genetic polymorphism in CD14 gene - 159C/T, which may be one of the risk factor for increased prevalence of Chronic Lung Diseases in the Central India. Settings and Design: Survivors of Methyl isocyanates toxicity in Bhopal still suffering from various respiratory ailments were examined. Materials and Methods: Polymerase chain reaction-restriction fragment length polymorphism was performed to determine the polymorphism of C-159T. Statistical analysis used: All analysis was done using SPSS software, version 11.5 (SPSS, Chicago, IL, USA). Results: The genotype and allelic frequencies were in Hardy-Weinberg's equilibrium. Prevalence of CC, CT, and TT were 5.5%, 22.2% and 9.25% respectively in asthmatics; 16.6%, 20.3% and 5.5% respectively in chronic obstructive pulmonary disease (COPD) patients and 5.5%, 14.8% and 1.85 respectively among interstitial lung disorder (ILD) patients; whereas the control cohort with no methyl isocyanate exposure displayed (CC, CT, and TT) cytosine,thymine as 2%, 1.6% and 2% respectively. Increased risk of Asthma among those carrying TT genotype and T allele (odds ratio [OR] =2.61 and 2.02 respectively). Conclusion: COPD risk significantly found among those with CC genotype and C allele (OR = 2.81 and 1.50 respectively), whereas ILD risk found significantly among CT genotype and C allele (OR = 1.75 and 1.40 respectively). Therefore, single nucleotide polymorphism (SNP) C-159T polymorphism in CD14 gene might be a risk factor for development of CLD in this population.

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