Health Boards
Human Leukocyte Antigens B (HLA-B) is a human gene that provides instructions for making a protein that plays a critical role in the immune system.
Background:
Up to now, there is no consensus conclusion about the association between psoriasis and HLA-B.
Objectives:
To clarify the association between psoriasis and HLA-B.
Methods:
Articles were selected, following the predefined criteria, from the case-control studies on the association between psoriasis and HLA-B that were published from January 1, 1972 to November 11, 2012 and were included in pub med and ISI Web of Knowledge databases.
Results:
Thirty-seven eligible articles covering 16,206 participants (14,644 Caucasian and 1,562 Asian) were included. Altogether sixty HLA-B alleles were reported, among which twenty-six were susceptible, twenty-four were protective, and ten were un-associated. For unspecific psoriasis (UPs), there were three strongly susceptible alleles (OR ≥ 3.0) in Caucasian and four in Asian, with HLA-B*57 and HLA-B*13 common to both races; there were four strongly protective (OR ≤ 0.3) alleles in Caucasian and seven in Asian, with HLA-B*07 common to both. For psoriasis vulgaris (PsV), nine alleles were strongly susceptible in Caucasian and five were in Asian, with HLA-Bw*37 and HLA-B*57 in both; three alleles were strongly protective in Caucasian, and one in Asian, with none in common. Psoriatic arthritis (PsA) and psoriasis guttate (PsG) cases were reported only in Caucasian, with eight and seven strongly susceptible alleles in each, as well as two and three strongly protective alleles in each. Analyses of onset age showed praecox patients with family history were significantly more susceptible to HLA-B*13 and HLA-B*57 alleles than tardive ones.
Conclusions:
A significant association was identified between psoriasis and fifty HLA-B alleles. The association varied in terms of different races, clinical types and onset ages of psoriasis.
Source: NO LINKS ALLOWED
Background:
Up to now, there is no consensus conclusion about the association between psoriasis and HLA-B.
Objectives:
To clarify the association between psoriasis and HLA-B.
Methods:
Articles were selected, following the predefined criteria, from the case-control studies on the association between psoriasis and HLA-B that were published from January 1, 1972 to November 11, 2012 and were included in pub med and ISI Web of Knowledge databases.
Results:
Thirty-seven eligible articles covering 16,206 participants (14,644 Caucasian and 1,562 Asian) were included. Altogether sixty HLA-B alleles were reported, among which twenty-six were susceptible, twenty-four were protective, and ten were un-associated. For unspecific psoriasis (UPs), there were three strongly susceptible alleles (OR ≥ 3.0) in Caucasian and four in Asian, with HLA-B*57 and HLA-B*13 common to both races; there were four strongly protective (OR ≤ 0.3) alleles in Caucasian and seven in Asian, with HLA-B*07 common to both. For psoriasis vulgaris (PsV), nine alleles were strongly susceptible in Caucasian and five were in Asian, with HLA-Bw*37 and HLA-B*57 in both; three alleles were strongly protective in Caucasian, and one in Asian, with none in common. Psoriatic arthritis (PsA) and psoriasis guttate (PsG) cases were reported only in Caucasian, with eight and seven strongly susceptible alleles in each, as well as two and three strongly protective alleles in each. Analyses of onset age showed praecox patients with family history were significantly more susceptible to HLA-B*13 and HLA-B*57 alleles than tardive ones.
Conclusions:
A significant association was identified between psoriasis and fifty HLA-B alleles. The association varied in terms of different races, clinical types and onset ages of psoriasis.
Source: NO LINKS ALLOWED