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Peran Beberapa Zat Gizi Mikro Dalam Sistem Imunitas (The Roles of Micronutrients on Imunity System)

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ABSTRACT

Micronutrients are vitamins and minerals. One of the roles of vitamins and minerals Is as an antioxidant that can strengthen the human immune system. The role of vitamin A is more in the maintenance of epithelial cells, which is one of the epithelial cells of the body tissues involved in the non-specific immune system. Vitamin E or a-tocopherol has an important role in erythrocyte membranes and plasma lipoproteins, they are able to maintain the integrity of the cell membrane because vitamin E has a phenol ring capable of providing hydrogen ions to free radicals. Vitamin C as an electron donor that can break the chain reaction of Reactive Oxygen Species and Reactive Nitrogen Species. Selenium is a trace mineral that is essential for protein synthesis and enzyme activity of glutathione peroxidase (GSH PX). Selenium has a role as a catalyst in the breakdown of peroxide produced by the body to become a bond that is not toxic. Therefore, the adequacy of nutrients, especially vitamins and minerals, are necessary in maintaining optimal immune system as a preventive health efforts.

Keywords: micronutrient, antioksidan, immune system

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Gizi Indonesia, 36 (1) 2013 : 57-64

Publisher

Jakarta : Persatuan Ahli Gizi Indonesia., 2013

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8p

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0436-0265

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