Study of serum vitamin d levels in bronchial asthma and its importance in control of bronchial asthma – a hospital based prospective study

Abstract

Background and Objectives - Bronchial asthma is a heterogeneous disease with different underlying disease processes. Vitamin D is found to be linked to bronchial asthma. Around 70-90% of the Indian population have Vitamin D deficiency. Vitamin D in bronchial asthma helps in various immunological pathways .It regulates the actions of lymphocytes, mast cells, antigen-presenting cells, and structural cells to reduce excessive inflammatory responses. Recent studies have shown that vitamin D supplementation leads to better asthma control, improvement in lung function and reduction in the severity and exacerbations. This study was done to estimate serum vitamin D levels in bronchial asthma patients and to evaluate clinically the correlation between its supplementation and asthma control.