HLA-Cw6 increases the risk of psoriasis and early onset before twenty-seven years of age among the Vietnamese population
https://doi.org/10.4081/dr.2023.9854
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Psoriasis is a chronic inflammatory skin disease that affects people all over the world. It is linked to the HLA-Cw6 allele, which is more common in Caucasians than in Asians and varies across ethnic groups. We investigated the association between the disease severity and the onset age of HLA-Cw6 prevalence in Vietnamese psoriasis patients. In 121 psoriasis patients and 30 healthy controls, we looked at the relationship between HLA-Cw6 and clinical features. We found that patients with psoriasis had significantly higher levels of HLA-Cw6 (64.5%) than controls (26.7%) (p=0.0001), with an odds ratio of 4.98 (2.04-12.15). Positive HLA-Cw6 patients had a significantly lower mean age of psoriasis onset than negative HLA-Cw6 patients. Patients with mild psoriasis (100%) were more likely to have the AA genotype, while patients with moderate to severe psoriasis (47.2% and 59.0%, respectively) and those with high PASI scores (55.1% and 54.1%, respectively) were more likely to have the TA genotype. Thus, HLA-Cw6 is a major genetic risk factor for psoriasis in Vietnamese patients, especially early-onset cases. Variations in HLA-Cw6 genotypes also affect disease severity.
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