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Indian J Hum Genet ; 2013 Oct-Dec ;19 (4): 403-407
Article in English | IMSEAR | ID: sea-156604

ABSTRACT

BACKGROUND: Leprosy (Hansen’s disease) is a human chronic granulomatous infectious disease caused by Mycobacterium leprae. Several types of study support a role for host genetics in susceptibility to leprosy. The protein tyrosine phosphatase non‑receptor type 22 (PTPN22) gene encodes an intracellular lymphoid protein tyrosine phosphatase that has been shown to play a negative regulatory role in T‑cell activation. AIMS: The aim of the present study was to find out associating the PTPN22 C1858T (R620W) polymorphism and leprosy in the Azeri population from Northwest Iran. MATERIALS AND METHODS: A total of 153 treated leprosy patients and 197 healthy and ethnic matched controls entered this study. We used restriction fragment length polymorphism method to type PTPN22 C1858T polymorphism. RESULTS: There was no significant difference in distribution of genotype and allele frequencies of PTPN22 C1858T polymorphism between leprosy patients and controls (P = 0.641 and 0.645; respectively). Moreover, there was no significant association between different clinical findings (karnofsky performance status score, clinical forms and manifestations of leprosy) and PTPN22 C1858T polymorphism. Data showed a low frequency of the minor (T) allele by 2.3% in leprosy and 1.5% in healthy individuals. CONCLUSIONS: The PTPN22 C1858T (R620W) is not relevant in susceptibility to leprosy in the Azeri population of Northwest Iran.


Subject(s)
Female , Genetic Predisposition to Disease , Humans , Iran/epidemiology , Iran/ethnology , Leprosy/epidemiology , Leprosy/genetics , Male , Polymorphism, Genetic , Polymorphism, Single Nucleotide , Protein Tyrosine Phosphatase, Non-Receptor Type 22/genetics
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