Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2008-12-24
pubmed:abstractText
Vitiligo is a common skin disorder that is caused by selective destruction of melanocytes, resulting in disfiguring loss of pigment. There are convincing evidences that cytokines and T cell mediated immunity may have a role in its pathogenesis. Given the fact that cytokine production is under genetic control, in this study, we have investigated IFN-gamma +874 T/A and TNF-alpha -308 G/A gene polymorphisms in a total of 176 vitiligo patients and 545 controls. IFN-gamma +874 T/A and TNF-alpha -308 G/A gene polymorphisms were genotyped via Allele Specific Oligonucleotide PCR (ASO-PCR) method. The results showed that the TNF-alpha -308 G/A polymorphism was more common in vitiligo patients than controls (P = 0.0004). This difference was only significant between female patients and controls (P < 0.0001), while there was no significant difference between male patients and male controls (P = 0.90). The distribution of IFN-gamma genotypes in vitiligo patients did not differ significantly from that in control subjects (P = 0.56). Since the presence of A nucleotide at position -308 of TNF-alpha gene is associated with increased cytokine production, therefore, the higher frequency of TNF-alpha -308 A allele in vitiligo patients compared to controls may be considered as a genetic susceptibility factor towards the development of vitiligo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1432-069X
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
301
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
21-5
pubmed:meshHeading
pubmed-meshheading:18820938-Adolescent, pubmed-meshheading:18820938-Adult, pubmed-meshheading:18820938-Aged, pubmed-meshheading:18820938-Aged, 80 and over, pubmed-meshheading:18820938-Child, pubmed-meshheading:18820938-Female, pubmed-meshheading:18820938-Gene Frequency, pubmed-meshheading:18820938-Genetic Predisposition to Disease, pubmed-meshheading:18820938-Humans, pubmed-meshheading:18820938-Interferon-gamma, pubmed-meshheading:18820938-Iran, pubmed-meshheading:18820938-Male, pubmed-meshheading:18820938-Middle Aged, pubmed-meshheading:18820938-Polymorphism, Genetic, pubmed-meshheading:18820938-Promoter Regions, Genetic, pubmed-meshheading:18820938-Severity of Illness Index, pubmed-meshheading:18820938-Sex Factors, pubmed-meshheading:18820938-Tumor Necrosis Factor-alpha, pubmed-meshheading:18820938-Vitiligo
pubmed:year
2009
pubmed:articleTitle
Association of interferon-gamma and tumor necrosis factor alpha polymorphisms with susceptibility to vitiligo in Iranian patients.
pubmed:affiliation
Department of Dermatology, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't