Nutritional Intake and Chronicity Associated with the Old World Cutaneous Leishmaniasis: Role of Vitamin A

BACKGROUND: Old world cutaneous leishmaniasis (CL) is known as a self-healing cutaneous parasitic infection. Host immunity has a fundamental role in the course of this infection. This study was designed to investigate the relationship between nutritional status and vitamin A intake with the clinical course of CL. METHODS: Overall, 250 patients with CL attending a dermatology clinic in Imam Reza Hospital Mashhad, Iran, were enrolled from Apr 2011 to Aug 2012. For data gathering, a semi-quantitative 302-item food frequency questionnaire was utilized. They received routine treatment protocols for leishmaniasis and 1 year of follow-up RESULTS: As for the 149 patients who completed the study, a deficiency of macro and micronutrients, particularly vitamin A, was significantly related to a chronic clinical disease course. CONCLUSION: Imbalanced or insufficient nutritional intake including vitamin A deficiency, may influence the clinical course of CL.