DNA polymorphism of HLA class II genes in alopecia areata
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DNA polymorphism of HLA class II genes in alopecia areata. / Morling, N; Frentz, G; Fugger, L; Georgsen, J; Jakobsen, B; Ødum, Niels; Svejgaard, A.
In: Disease Markers, Vol. 9, No. 1, 1992, p. 35-42.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - DNA polymorphism of HLA class II genes in alopecia areata
AU - Morling, N
AU - Frentz, G
AU - Fugger, L
AU - Georgsen, J
AU - Jakobsen, B
AU - Ødum, Niels
AU - Svejgaard, A
N1 - Keywords: Alopecia Areata; DNA; Denmark; Genes, MHC Class II; Genetic Markers; HLA-DP Antigens; HLA-DQ Antigens; HLA-DR Antigens; Humans; Polymorphism, Restriction Fragment Length
PY - 1992
Y1 - 1992
N2 - We investigated the DNA restriction polymorphism (RFLP) of the Major Histocompatibility Complex (MHC) class II genes: HLA-DQA, -DQB, -DPA, and -DPB in 20 Danish patients with alopecia areata (AA) and in healthy Danes. The frequency in AA of the DQB1*0301 and DQw7 associated DQB Bgl/II 4.2 kb fragment was increased to 65.0 per cent compared to 23.2 per cent in controls (RR = 6.1; p less than 10(-3)) suggesting that the previously reported associations between AA and both DR4 and DR5 is secondary to an association between AA and DQB1*0301, which codes for the beta-chain of the HLA-DQ molecule of the serologically defined HLA-DQw7 specificity. Individuals who carried both DQA1*0501 and DQB1*0301 seemed to have a further increased risk of developing AA compared to individuals carrying only one of these HLA class II genes. Analysis of the combined presence of DQB1*0301 and DPA1*0103 in AA suggests that an additive risk effect (synergism or interaction) exists between the DQB1*0301 and DPA1*0103 alleles which are situated at different HLA class II loci.
AB - We investigated the DNA restriction polymorphism (RFLP) of the Major Histocompatibility Complex (MHC) class II genes: HLA-DQA, -DQB, -DPA, and -DPB in 20 Danish patients with alopecia areata (AA) and in healthy Danes. The frequency in AA of the DQB1*0301 and DQw7 associated DQB Bgl/II 4.2 kb fragment was increased to 65.0 per cent compared to 23.2 per cent in controls (RR = 6.1; p less than 10(-3)) suggesting that the previously reported associations between AA and both DR4 and DR5 is secondary to an association between AA and DQB1*0301, which codes for the beta-chain of the HLA-DQ molecule of the serologically defined HLA-DQw7 specificity. Individuals who carried both DQA1*0501 and DQB1*0301 seemed to have a further increased risk of developing AA compared to individuals carrying only one of these HLA class II genes. Analysis of the combined presence of DQB1*0301 and DPA1*0103 in AA suggests that an additive risk effect (synergism or interaction) exists between the DQB1*0301 and DPA1*0103 alleles which are situated at different HLA class II loci.
M3 - Journal article
C2 - 1683825
VL - 9
SP - 35
EP - 42
JO - Disease Markers
JF - Disease Markers
SN - 0278-0240
IS - 1
ER -
ID: 10636540