Different Vitamin D Receptor problems cause different COVID problems
Effects of Vitamin D receptor gene polymorphisms on the prognosis of COVID-19
Clin Endocrinol (Oxf). 2021 Dec 17. doi: 10.1111/cen.14664
Tugce Apaydin 1, Hamza Polat 2, Ceyda Dincer Yazan 1, Can Ilgin 3, Onur Elbasan 1, Saida Dashdamirova 1, Feyza Bayram 2, Elif Tukenmez Tigen 4, Ozan Unlu 5, Ahmet Faruk Tekin 5, Ebru Arslan 2, Ipek Yilmaz 2, Goncagul Haklar 5, Pınar Ata 2, Hulya Gozu 1
Purpose: Vitamin D deficiency has emerged as another potential risk factor for coronavirus disease (COVID-19) due to the immunomodulatory effects of 25 hydroxyvitamin D [25 (OH)D]. Vitamin D receptor (VDR) gene polymorphisms such as Fok I, Bsm I, Apa I, and Taq I are also associated with different courses of viral infections. This study aimed to evaluate the association between the VDR gene polymorphism at Fok I, Taq I, Bsm I, and Apa I genotypes and the prognosis of COVID-19 in respect to vitamin D deficiency.
Methods: Two-hundred ninety-seven patients with COVID-19 were enrolled. Serum 25 (OH)D levels were measured. Four variant regions of the VDR gene, FokI, BsmI, ApaI, and TaqI were determined.
Results: Eighty-three percent of subjects had vitamin D deficiency, and 40.7% of the whole group had severe deficiency. Median 25 (OH)D level was 11.97 ng/mL. Vitamin D levels were not related to inflammatory markers, disease severity, admission to intensive care unit (ICU), and mortality.
While disease severity was related to Fok I Ff genotype, it was
Taq TT genotype for ICU admission. Moreover, the
ApaI aa genotype was common among the patients who were died.
None of the deceased subjects had the Fok I FF genotype.
Conclusion: 25 (OH)D levels were not related to the severity and mortality of COVID-19. VDR gene polymorphisms are independently associated with the severity of COVID-19 and the survival of patients.
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