HLA-B27 subtypes in Japanese with seronegative spondyloarthropathies and healthy controls.

Yamaguchi, A; Ogawa, A; Tsuchiya, N; Shiota, M; Mitsui, H; Tokunaga, K; Tadokoro, K; Juji, T et al. · J Rheumatol · 1996

case_series · Level IV

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Abstract

To determine HLA-B27 subtype frequencies in Japanese patients with seronegative spondyloarthropathies (SpA) and healthy controls. We determined HLA-B27 subtypes of 20 Japanese patients with ankylosing spondylitis and one with Reiter's syndrome, and 11 healthy Japanese individuals using a polymerase chain reaction sequence specific oligonucleotide hybridization method specifically designed for the discrimination of B*2701-09. 14 of 21 (67%) patients and 9 of 11 (82%) controls were typed as B*2704. The remainder were B*2705. HLA-B*2704 and B*2705 are present in the Japanese population, the former being the predominant subtype of HLA-B27. Both subtypes are associated with SpA.

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