The NRAMPI, VDR and TNF-alpha gene polymorphisms in Iranian tuberculosis patients: the study on host susceptibility

The natural resistance-associated macrophage protein (NRAMP1), Vitamin-D receptor (VDR) and Tumor necrosis factor (TNF-alpha) have been associated in susceptibility to tuberculosis, but the results have been inconsistent. This study aimed to determine the association of NRAMP1, VDR, and TNF-á varian...

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Published in:The Brazilian journal of infectious diseases 2009-08, Vol.13 (4), p.252-256
Main Authors: Merza, Muayad, Farnia, Parissa, Anoosheh, Sabar, Varahram, Mohammed, Kazampour, Mehdi, Pajand, Omid, Saeif, Shima, Mirsaeidi, Mehdi, Masjedi, Mohammad Reza, Velayati, Ali Akbar, Hoffner, Sven
Format: Article
Language:English
Subjects:
Case-Control Studies
Cation Transport Proteins - genetics
Genetic Predisposition to Disease - genetics
Genotype
Humans
INFECTIOUS DISEASES
Iran
NRAMP
Polymerase Chain Reaction
Polymorphism, Restriction Fragment Length
Polymorphism, Single Nucleotide
Receptors, Calcitriol - genetics
TNF-α gene
tuberculosis
Tuberculosis, Pulmonary - genetics
Tumor Necrosis Factor-alpha - genetics
VDR
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container_issue 4
container_start_page 252
container_title The Brazilian journal of infectious diseases
container_volume 13
creator Merza, Muayad
Farnia, Parissa
Anoosheh, Sabar
Varahram, Mohammed
Kazampour, Mehdi
Pajand, Omid
Saeif, Shima
Mirsaeidi, Mehdi
Masjedi, Mohammad Reza
Velayati, Ali Akbar
Hoffner, Sven
description The natural resistance-associated macrophage protein (NRAMP1), Vitamin-D receptor (VDR) and Tumor necrosis factor (TNF-alpha) have been associated in susceptibility to tuberculosis, but the results have been inconsistent. This study aimed to determine the association of NRAMP1, VDR, and TNF-á variant with development of pulmonary tuberculosis (PTB) among Iranian patients. The single nucleotide polymorphisms (SNPs) at INT4, D543, 3'UTR of NRAMP1 gene, SNPs in restriction sites of BsmI, and FokI of the VDR gene and SNPs of TNF-alpha at -238,-308, -244,857,-863 positions were analyzed by PCR-RFLP among two groups of individual; patients with PTB (n=117) and healthy controls (n=60). Thereafter, the frequencies of extended haplotypes and diplotypes were estimated. No statistically significant differences were observed in allele frequencies of INT4, D543, 3'UTR of NRAMPI, FokI of VDR and TNF-alpha at -238, -244,-863 and -857 position. Although, the frequency of b allele of BsmI [ORs: 0.24 CI95% (0.07-0.67 (p=0.001)] and -308 A variant in TNF-alpha promoter region [ORs:0.26 CI95%( 0.07-0.77) (p=0.006)] were significantly more in PTB patients than healthy controls. The frequency of extended diplotypes of NRAMP [GG TGTG++GA; 0.02(0.001-0.0035)], VDR [FFBB; 0.2(0.6-0.6] and TNF-alpha [CCCCGGGGGG; 0.49(0.25-0.97)] were statistically different in patients and control subjects (p
doi_str_mv 10.1590/S1413-86702009000400002
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This study aimed to determine the association of NRAMP1, VDR, and TNF-á variant with development of pulmonary tuberculosis (PTB) among Iranian patients. The single nucleotide polymorphisms (SNPs) at INT4, D543, 3'UTR of NRAMP1 gene, SNPs in restriction sites of BsmI, and FokI of the VDR gene and SNPs of TNF-alpha at -238,-308, -244,857,-863 positions were analyzed by PCR-RFLP among two groups of individual; patients with PTB (n=117) and healthy controls (n=60). Thereafter, the frequencies of extended haplotypes and diplotypes were estimated. No statistically significant differences were observed in allele frequencies of INT4, D543, 3'UTR of NRAMPI, FokI of VDR and TNF-alpha at -238, -244,-863 and -857 position. Although, the frequency of b allele of BsmI [ORs: 0.24 CI95% (0.07-0.67 (p=0.001)] and -308 A variant in TNF-alpha promoter region [ORs:0.26 CI95%( 0.07-0.77) (p=0.006)] were significantly more in PTB patients than healthy controls. The frequency of extended diplotypes of NRAMP [GG TGTG++GA; 0.02(0.001-0.0035)], VDR [FFBB; 0.2(0.6-0.6] and TNF-alpha [CCCCGGGGGG; 0.49(0.25-0.97)] were statistically different in patients and control subjects (p&lt;0.05). This study confirmed the association of SNPs in BsmI (B/b + b/b) of VDR and SNPs in -308A (G/A +G/G) of TNF-alpha genes with susceptibility to tuberculosis in Iranian PTB patients. 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This study aimed to determine the association of NRAMP1, VDR, and TNF-á variant with development of pulmonary tuberculosis (PTB) among Iranian patients. The single nucleotide polymorphisms (SNPs) at INT4, D543, 3'UTR of NRAMP1 gene, SNPs in restriction sites of BsmI, and FokI of the VDR gene and SNPs of TNF-alpha at -238,-308, -244,857,-863 positions were analyzed by PCR-RFLP among two groups of individual; patients with PTB (n=117) and healthy controls (n=60). Thereafter, the frequencies of extended haplotypes and diplotypes were estimated. No statistically significant differences were observed in allele frequencies of INT4, D543, 3'UTR of NRAMPI, FokI of VDR and TNF-alpha at -238, -244,-863 and -857 position. Although, the frequency of b allele of BsmI [ORs: 0.24 CI95% (0.07-0.67 (p=0.001)] and -308 A variant in TNF-alpha promoter region [ORs:0.26 CI95%( 0.07-0.77) (p=0.006)] were significantly more in PTB patients than healthy controls. 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This study aimed to determine the association of NRAMP1, VDR, and TNF-á variant with development of pulmonary tuberculosis (PTB) among Iranian patients. The single nucleotide polymorphisms (SNPs) at INT4, D543, 3'UTR of NRAMP1 gene, SNPs in restriction sites of BsmI, and FokI of the VDR gene and SNPs of TNF-alpha at -238,-308, -244,857,-863 positions were analyzed by PCR-RFLP among two groups of individual; patients with PTB (n=117) and healthy controls (n=60). Thereafter, the frequencies of extended haplotypes and diplotypes were estimated. No statistically significant differences were observed in allele frequencies of INT4, D543, 3'UTR of NRAMPI, FokI of VDR and TNF-alpha at -238, -244,-863 and -857 position. Although, the frequency of b allele of BsmI [ORs: 0.24 CI95% (0.07-0.67 (p=0.001)] and -308 A variant in TNF-alpha promoter region [ORs:0.26 CI95%( 0.07-0.77) (p=0.006)] were significantly more in PTB patients than healthy controls. The frequency of extended diplotypes of NRAMP [GG TGTG++GA; 0.02(0.001-0.0035)], VDR [FFBB; 0.2(0.6-0.6] and TNF-alpha [CCCCGGGGGG; 0.49(0.25-0.97)] were statistically different in patients and control subjects (p&lt;0.05). This study confirmed the association of SNPs in BsmI (B/b + b/b) of VDR and SNPs in -308A (G/A +G/G) of TNF-alpha genes with susceptibility to tuberculosis in Iranian PTB patients. Furthermore, the extended haplotypes and diplotypes analysis can be considered as an alternative way to determine the host susceptibility to TB.</abstract><cop>Brazil</cop><pub>Brazilian Society of Infectious Diseases</pub><pmid>20231985</pmid><doi>10.1590/S1413-86702009000400002</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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source SciELO Brazil
subjects Case-Control Studies
Cation Transport Proteins - genetics
Genetic Predisposition to Disease - genetics
Genotype
Humans
INFECTIOUS DISEASES
Iran
NRAMP
Polymerase Chain Reaction
Polymorphism, Restriction Fragment Length
Polymorphism, Single Nucleotide
Receptors, Calcitriol - genetics
TNF-α gene
tuberculosis
Tuberculosis, Pulmonary - genetics
Tumor Necrosis Factor-alpha - genetics
VDR
title The NRAMPI, VDR and TNF-alpha gene polymorphisms in Iranian tuberculosis patients: the study on host susceptibility
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