Vitamin D Receptor Gene Polymorphisms Are Associated With Leprosy in Southern Brazil.

Autor:	Pepineli AC; Laboratory of Immunogenetics, Department of Basic Health Sciences, Maringá State University (UEM), Maringá, Brazil., Alves HV; Laboratory of Immunogenetics, Department of Basic Health Sciences, Maringá State University (UEM), Maringá, Brazil., Tiyo BT; Laboratory of Immunogenetics, Department of Basic Health Sciences, Maringá State University (UEM), Maringá, Brazil., Macedo LC; Laboratory of Immunogenetics, Department of Basic Health Sciences, Maringá State University (UEM), Maringá, Brazil., Visentainer L; Department of Medicine, Faculty of Medical Sciences, Campinas State University (UNICAMP), São Paulo, Brazil., de Lima Neto QA; Laboratory of Immunogenetics, Department of Basic Health Sciences, Maringá State University (UEM), Maringá, Brazil., Zacarias JMV; Laboratory of Immunogenetics, Department of Basic Health Sciences, Maringá State University (UEM), Maringá, Brazil., Sell AM; Laboratory of Immunogenetics, Department of Basic Health Sciences, Maringá State University (UEM), Maringá, Brazil., Visentainer JEL; Laboratory of Immunogenetics, Department of Basic Health Sciences, Maringá State University (UEM), Maringá, Brazil.
Jazyk:	angličtina
Zdroj:	Frontiers in immunology [Front Immunol] 2019 Oct 04; Vol. 10, pp. 2157. Date of Electronic Publication: 2019 Oct 04 (Print Publication: 2019).
DOI:	10.3389/fimmu.2019.02157
Abstrakt:	Vitamin D, together with its nuclear receptor (VDR), plays an important role in modulating the immune response, decreasing the inflammatory process. Some polymorphisms of the VDR gene, such as Bsm I (G>A rs1544410) , Apa I (G>T rs7975232), and Taq I (T>C rs731236) could affect its stability and mRNA transcription activity, while Fok I T>C (rs2228570) gives a truncated protein with three fewer amino acids and more efficiency in binding vitamin D. This study evaluated these four polymorphisms in the immunopathogenesis of leprosy in 404 patients and 432 control individuals without chronic or infectious disease in southern Brazil. When analyzing differences in the allele and genotype frequency of polymorphisms between patients (leprosy per se , multibacillary, and paucibacillary clinical forms) and controls, we found no statistically significant association. Regarding haplotype analysis, the bAt haplotype was associated with protection from leprosy per se ( P = 0.004, OR = 0.34, CI = 0.16-0.71) and from the multibacillary clinical form ( P = 0.005, OR = 0.30, CI = 0.13-0.70). In individuals aged 40 or more years, this haplotype has also showed protection against leprosy per se and multibacillary (OR = 0.26, CI = 0.09-0.76; OR = 0.26, CI = 0.07-0.78, respectively), while the BAt haplotype was a risk factor for leprosy per se in the same age group (OR = 1.34, CI = 1.04-1.73). In conclusion, despite having found no associations between the VDR gene polymorphisms with the development of leprosy, the haplotypes formed by the Bsm I, Apa I, and Taq I polymorphisms were associated with leprosy per se and the multibacillary clinical form. (Copyright © 2019 Pepineli, Alves, Tiyo, Macedo, Visentainer, de Lima Neto, Zacarias, Sell and Visentainer.)
Databáze:	MEDLINE
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