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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1989-7-27
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pubmed:abstractText |
HLA class II antigens were studied in a panel of 130 Nigerians. Complex patterns of associations were seen between HLA-Dw, -DR and -DQ specificities, differing widely from those reported for other populations. A number of Dw types were associated with the same DR antigen: Dw'1N' and Dw'BERN' with DR1, Dw2 and Dw'2N' with DR2, Dw5 and Dw'5N' (Dw5 + Dw'F5') with DRw11. It was also observed that a Dw type associated with more than one DR antigen: HLA-Dw3 was assigned to individuals who were DR3 negative and similarly Dw10, Dw13 and Dw14 to individuals negative for DR4. HLA-DRw8 and Dw8 were completely dissociated in Nigerians, and Dw8 did not show a preferential DR association. These results demonstrate that DR and DQ identity between HTC stimulator and responder cell is not necessarily a prerequisite for Dw to be assigned. Preliminary studies show that subtypes of HLA-Dw1 and Dw8 detected by HTC typing correlate with restriction fragment length polymorphisms (RFLPs) detected with a combination of Bgl II enzyme and DRA/DRB cDNA probes. HLA-DP antigen frequencies differed between Nigerians and British Caucasoids. The most common DP antigen in Nigerians was DPw1, compared with DPw4 in Caucasoids. HLA-DPw6 appeared to be absent or rare in both Nigerians and British Caucasoids. Only five out of 68 Nigerians tested were assigned two DP specificities. The association between HLA-DR3 and DPw1 reported in Caucasoid panels was absent in Nigerians.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0001-2815
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
33
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
445-56
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2472018-African Continental Ancestry Group,
pubmed-meshheading:2472018-Epitopes,
pubmed-meshheading:2472018-European Continental Ancestry Group,
pubmed-meshheading:2472018-Great Britain,
pubmed-meshheading:2472018-HLA-D Antigens,
pubmed-meshheading:2472018-Humans,
pubmed-meshheading:2472018-Nigeria,
pubmed-meshheading:2472018-Polymorphism, Genetic
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pubmed:year |
1989
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pubmed:articleTitle |
HLA-D region heterogeneity in a Nigerian population.
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pubmed:affiliation |
Department of Immunology, London Hospital Medical College, U.K.
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pubmed:publicationType |
Journal Article
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