Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2006-11-19
pubmed:abstractText
HLA complex is composed of several closely linked loci, each containing several alleles, yielding a high expression of polymorphism. Vitiligo, a commonly acquired dermatological disorder, has been associated with different HLA antigens in different ethnic groups. In this study, HLA classes I (HLA-A, B, and C) and II (HLA-DR, DQ) antigens/alleles were analyzed in a group of 80 Saudi subjects consisting of vitiligo patients (40) and matched controls (40). The frequency of antigens of various HLA loci was tested using two-stage microcytotoxicity assays, while the frequency of alleles of HLA-DR was screened by polymerase chain reaction/sequence specific primers (PCR/SSP) method. The frequencies of HLA-B7, B15, Bw6, Cw6, Cw7, and DRB4*010101 were found to be significantly higher in vitiligo patients compared to controls [P = 0.029, 0.015, 0.033, 0.009, 0.043, and 0.015, respectively, with relative risk (RR) > or = 3, etiologic fraction (EF) > or = 0.4]. On the other hand, HLA-A9, B5, DQ1, and DRB3*010101 were significantly decreased in vitiligo patients compared to healthy Saudis [P = 0.008, 0.004, 0.028, and 0.04, respectively, with RR < 1 and preventive fraction (PF) < 0.5]. Among the patients, the highest allele frequency was noted for DRB4*010101(70%), while in controls it was for DRB3*010101 (72.5%). These results for antigens and allele frequency of various HLA Loci in vitiligo patients and control subjects suggested that HLA-B7, Bw6, Cw6, Cw7, and DRB4*010101 could be susceptible to vitiligo, while HLA-A9, B5, DQ1, and DRB3*010101 might be negatively associated with the development of vitiligo in Saudis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/HLA-B Antigens, http://linkedlifedata.com/resource/pubmed/chemical/HLA-B15 Antigen, http://linkedlifedata.com/resource/pubmed/chemical/HLA-B7 Antigen, http://linkedlifedata.com/resource/pubmed/chemical/HLA-Bw6 antigen, http://linkedlifedata.com/resource/pubmed/chemical/HLA-C*06 antigen, http://linkedlifedata.com/resource/pubmed/chemical/HLA-C*70 antigen, http://linkedlifedata.com/resource/pubmed/chemical/HLA-C Antigens, http://linkedlifedata.com/resource/pubmed/chemical/HLA-DR Antigens, http://linkedlifedata.com/resource/pubmed/chemical/HLA-DRB1 Chains, http://linkedlifedata.com/resource/pubmed/chemical/HLA-DRB4*01:01 antigen, http://linkedlifedata.com/resource/pubmed/chemical/Histocompatibility Antigens Class I, http://linkedlifedata.com/resource/pubmed/chemical/Histocompatibility Antigens Class II
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0340-3696
pubmed:author
pubmed:issnType
Print
pubmed:volume
298
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
347-52
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:17021767-Adolescent, pubmed-meshheading:17021767-Adult, pubmed-meshheading:17021767-Alleles, pubmed-meshheading:17021767-Case-Control Studies, pubmed-meshheading:17021767-Female, pubmed-meshheading:17021767-Gene Frequency, pubmed-meshheading:17021767-HLA-B Antigens, pubmed-meshheading:17021767-HLA-B15 Antigen, pubmed-meshheading:17021767-HLA-B7 Antigen, pubmed-meshheading:17021767-HLA-C Antigens, pubmed-meshheading:17021767-HLA-DR Antigens, pubmed-meshheading:17021767-HLA-DRB1 Chains, pubmed-meshheading:17021767-Histocompatibility Antigens Class I, pubmed-meshheading:17021767-Histocompatibility Antigens Class II, pubmed-meshheading:17021767-Humans, pubmed-meshheading:17021767-Male, pubmed-meshheading:17021767-Middle Aged, pubmed-meshheading:17021767-Saudi Arabia, pubmed-meshheading:17021767-Vitiligo
pubmed:year
2006
pubmed:articleTitle
Association of HLA loci alleles and antigens in Saudi patients with vitiligo.
pubmed:affiliation
Department of Dermatology, Armed Forces Hospital, Riyadh 11159, Saudi Arabia.
pubmed:publicationType
Journal Article