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Trace elements, innate immune response and parasites.
Maria Teresa Rivera1, Andrea Pereira De Souza, Tania Cremonini Araujo-Jorge
1Lab. Biologia Cellular, DUBC, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil.
Clinical Chemistry and Laboratory Medicine
|September 11, 2003
Summary
Micronutrient deficiencies, like selenium deficiency, worsen infectious diseases by impairing innate immunity. Understanding these interactions is crucial for public health in developing nations.
Area of Science:
- Nutrition and Immunology
- Infectious Diseases
- Trace Element Metabolism
Background:
- Micronutrient deficiencies and infectious diseases frequently coexist, particularly in developing countries.
- Trace elements (zinc, iron, selenium) are vital for immune function and host susceptibility to infection.
- Micronutrient deficiency broadly impacts innate immunity components, complicating individual nutrient effect analysis.
Purpose of the Study:
- To review interactions between trace elements, innate immunity, and acute inflammatory responses.
- To focus on the specific impact of selenium deficiency on Trypanosoma cruzi infection.
Main Methods:
- Review of existing literature on micronutrient-immunity interactions.
- Focus on Chagas' disease as a model for nutrition-infection interplay.
- Analysis of selenium's role in innate immunity and inflammatory responses.
Main Results:
- Micronutrient deficiencies significantly affect innate immune responses.
- Selenium deficiency and Trypanosoma cruzi infection present a relevant case study for these interactions.
- Trace elements play a modulatory role in host defense against pathogens.
Conclusions:
- Interactions between micronutrient status and infectious disease are complex and detrimental.
- Selenium's role in innate immunity warrants further investigation, especially in the context of parasitic infections like Chagas' disease.
- Addressing micronutrient deficiencies is essential for improving immune function and managing infectious diseases.