Vitamin D receptor ApaI, TaqI, BsmI, and FokI polymorphisms and psoriasis susceptibility: an updated meta-analysis.
Clin Exp Dermatol. 2018 Nov 25. doi: 10.1111/ced.13823. [Epub ahead of print]
Lee YH, Division of Rheumatology, Department of Internal Medicine, Korea University Medical Center, Korea University College of Medicine, Seoul, Korea.
- 47 diseases were associated with Vitamin D Receptor as of Nov 2018
- Psorasis reduced for those getting Vitamin D levels above 50 ng – Feb 2018
- Psoriasis severity associated with low vitamin D (10 studies) – meta-analysis Jan 2018
BACKGROUND: Vitamin D is considered a regulator of the immune system, and its polymorphisms have been associated with psoriasis in some but not all reports.
AIM: To explore whether vitamin D receptor (VDR) polymorphisms are associated with susceptibility to psoriasis.
METHODS: Meta-analyses were conducted to determine the associations between psoriasis and the VDR ApaI, TaqI, BsmI and FokI polymorphisms in all participants, and stratified by ethnic group.
In total, 16 studies on VDR polymorphisms and psoriasis were included in this meta-analysis, which involved 2086 patients and 2182 controls. The meta-analysis indicated an association between psoriasis and the VDR TaqI TT genotype in Caucasian (OR = 1.29, 95% CI = 1.00-1.66, P < 0.05), but not in Asian (OR = 1.32, 95% CI = 0.89-1.96, P = 0.16) populations. However, no association was found between psoriasis and the VDR TaqI polymorphism using dominant, allele contrast or homozygous contrast models. No association was found between psoriasis and either the VDR ApaI, BsmI or FokI polymorphisms by meta-analyses of the allele contrast, recessive, or dominant models or homozygous contrast models in the overall, Caucasian or Asian populations.
This meta-analysis showed that polymorphisms in VDR ApaI, BsmI and FokI are not associated with psoriasis susceptibility in overall, Caucasian or Asian populations. However, the VDR TaqI polymorphism is associated with psoriasis susceptibility in Caucasian populations.