Nutritional Status of Patients with Cutaneous Leishmaniasis from a Tropical Area of Bolivia, and Implications for Zinc Bioavailability

Claudia E. Lazarte, Claudia Alegre, Ernesto Rojas, Yvonne Granfeldt

Biomedical Research Institute, San Simon University, Cochabamba, Bolivia.
Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden.
Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden; Food and Natural Products Center, San Simon University, Cochabamba, Bolivia;.
Department of Nutrition, San Simon University, Cochabamba, Bolivia;.

DOI: 10.4236/fns.2013.410A009                

Abstract

Macro and micronutrient deficiencies are a significant problem among people in rural areas in developing countries. Deficiencies may lead to an impaired immune system making the organism vulnerable to infections and diseases. In this paper, the dietary intake, anthropometric measurements, zinc and copper levels in serum, of patients with cutaneous leishmaniasis (CL) are compared with a group of healthy controls and reference values. Results showed no significant differences in most nutrient intake or anthropometrics between patients and controls. However, serum zinc level of patients (80 μg/dl) was significantly lower (P < 0.001) than in controls (85 μg/dl), likely explained by the presence of leishmaniasis. The median serum zinc level in both groups was below the reference values, even though their median zinc intake met the zinc recommendations from WHO. Consequently, besides the presence of leishmaniasis, serum zinc levels may be compromised by inhibitory components in their diet, such as phytates, as it is shown by the molar ratio phytate:zinc (Phy:Zn) that was between 11 and 19, while 15 is the level said to compromise zinc status. There were significant (P < 0.05) negative correlations between serum zinc and Phy:Zn, for patients (r = - 0.413) and controls (r = - 0.410). In conclusion this study shows that patients with CL in Chapare, Bolivia had low serum zinc levels due to the leishmaniasis per se and the decreased zinc bioavailability in their diet. CL infection was not in direct association with the nutritional status indicated by the anthropometric or dietary assessments. However, dietary intake showed 5 essential nutrients below the nutrient recommendation in both groups.

Keywords

Nutritional Status; Leishmaniasis; Dietary Intake; Anthropometrics; Zinc Bioavailability; Phytates

Conflicts of Interest

The authors declare no conflicts of interest.

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