Abstract

Dengue is the most common arboviral infection globally, but its pathogenesis is poorly explored. Vascular endothelial growth factor (VEGF) has an essential role in the host defense against viral infection. However, not much information is available regarding its status in dengue patients from the eastern zone of India. In the present investigation, the level of VEGF was investigated for its possible utility as a dengue severity marker. Accordingly, confirmed dengue cases were enrolled during 2016-2018. Serum from all the study subjects was subjected to the standard enzyme-linked immunosorbent assay test for VEGF analysis. In addition, we assessed the association of VEGF to dengue severity. The study revealed that VEGF titers (P < .0001) were significantly increased in severe dengue (SD) patients in contrast to those with a milder form of dengue. An association was obtained between VEGF and increased SGOT (r = 0.517 with P < .0001) while VEGF had a negative correlation with platelets in SD patients (r = -0.331 with P = .001). Enhanced VEGF titers along with decreased platelets had a good association with SD. The investigation revealed that high VEGF titers are novel indicators of dengue severity. However, our results must be verified in a study evaluating a larger number of dengue patients.

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