Abstract Title:

Immunomodulatory effect of vitamin D on immune response to dengue virus infection.

Abstract Source:

Vitam Horm. 2021 ;117:239-252. Epub 2021 Jul 12. PMID: 34420583

Abstract Author(s):

K Alagarasu

Article Affiliation:

K Alagarasu


Dengue, an acute febrile illness which in some cases requires hospitalization and occasionally a fatal disease, caused by dengue virus is a potential threat to the public health systems throughout the world. Approved antivirals are not available for treating dengue. Immunomodulators, that can reduce inflammation which if not treated properly results in vascular leakage, are being attempted as therapeutics against severe dengue. Vitamin D, an immunomodulatory hormone, with both antiviral and immunomodulatory effects, is an appropriate choice for investigation as a potential drug against dengue. Investigations of vitamin D levels by many studies have suggested vitamin D levels as a potential marker for predicting severe dengue. In-vitro studies have shown that 1, 25 dihydroxy vitamin D(1,25(OH)D), active form of vitamin D, can reduce the expression of dengue virus entry receptors, restrict the viral replication and can modulate the expression of inflammatory cytokines in dengue virus infected cells. The results from in-vitro studies also have cautioned that insufficient levels of vitamin D supplementation might increase the virus replication. Available evidence suggests vitamin D based therapeutics against dengue and provides ray of light for treating dengue patients but, the available evidence needs to be supported by beneficial outcomes in clinical trials.

Study Type : Review

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