Publication: Association of interferon-gamma gene polymorphisms with susceptibility to oral lichen planus in the Thai population
Issued Date
2012-05-01
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ISSN
00039969
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2-s2.0-84860225085
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Mahidol University
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SCOPUS
Bibliographic Citation
Archives of Oral Biology. Vol.57, No.5 (2012), 491-494
Suggested Citation
Ingorn Kimkong, Jeerawat Nakkuntod, Pimpayao Sodsai, Nattiya Hirankarn, Nakarin Kitkumthorn Association of interferon-gamma gene polymorphisms with susceptibility to oral lichen planus in the Thai population. Archives of Oral Biology. Vol.57, No.5 (2012), 491-494. doi:10.1016/j.archoralbio.2011.10.009 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/13744
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Title
Association of interferon-gamma gene polymorphisms with susceptibility to oral lichen planus in the Thai population
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Abstract
Objective: Interferon-gamma (IFN-γ) is highly expressed in oral lichen planus (OLP). The IFN-γ (+874 in intron 1, rs2430561) TT genotype, which has been reported to be associated with high IFN-γ production, was hypothesized to be associated with susceptibility to OLP in the Thai population. Design: Genomic DNA samples from 74 OLP and 268 healthy controls were evaluated for IFN-γ polymorphisms by polymerase chain reaction with sequence-specific primers (PCR-SSP) and direct sequencing method. Results: The T allele was significantly associated with an increased risk of OLP development as compared to the A allele (OR = 1.76, P = 0.004; P c = 0.02). The effect of the T allele was similar to an autosomal recessive disorder; the presence of TT genotype (when compared to AA and AT) conferred an OR of 2.61, P = 0.008; P c = 0.04. Conclusions: We found an association between IFN-γ +874A/T polymorphism and susceptibility to OLP. However, an association study utilising a larger sample size and patients from other races apart from the Asian population should be performed to further verify these findings. © 2011 Elsevier Ltd.