The Study of Correlation Between Serum Vitamin D Concentrations and HBV DNA Levels and Immune Response in Chronic Hepatitis Patients.

Chronic hepatitis B (CHB) is a common chronic disease. Previous studies have shown a link between 25-hydroxyvitamin D (vitamin D) concentration and liver disease. Hepatitis B virus (HBV) infection has been attributed to the inappropriate functioning of cell-mediated immunity.