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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1987-9-18
pubmed:abstractText
Human leukocyte antigens (HLA) of classes I and II were studied in 127 patients with alopecia areata (AA). The patients were subdivided into different groups depending on hair loss area, sex, pathogenesis, response to topical immune modulators (squaric acid dibutylester and diphencyprone) and age of onset of the disease. The frequencies of class I HLA markers (loci A, B, C) were not significantly different from the controls. However, among the class II antigens (loci DR, DQ), the frequency of DR5 was increased in both alopecia areata and alopecia universalis when compared with the control group. In particular, DR5 was strongly linked to the early-onset form. The highest DR5 frequency (62%) was found in the group of patients which presented both the early onset and the most severe form of the disease (p less than 0.01; RR = 3.14). A decrease of the HLA-B8 phenotype frequency was found in the alopecia areata group versus the alopecia universalis one. No significant deviation was found between the female patients and the control group. However, an increase of CW3 and a decrease of DR1 was seen in the males. In the group including 'combined', 'prehypertensive', 'atopic' alopecia of Ikeda's classification the frequency of HLA-A28 and DR5 was increased and that of DR1 was decreased in comparison with the 'common' type of alopecia and the controls. It was not possible to find any relationship between these genetic markers and the response to topical immune modulators.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0011-9075
pubmed:author
pubmed:issnType
Print
pubmed:volume
175
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
10-4
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Human leukocyte antigen region involvement in the genetic predisposition to alopecia areata.
pubmed:publicationType
Journal Article