Iron deficiency anemia and milder sub-clinical iron deficiency, resulting in reduced or nonexistent iron stores, and major world-wide nutritional problems among young children and women of reproductive age. Because of this, influences of iron status on immune function assume considerable importance in maintaining a healthy disease-free state. The existing literature relating iron status to infectious disease is contradictory with both beneficial and detrimental effects of iron on the susceptibility to infection reported. The proposed research involves a clearly defined experimental model to study the effects of iron nutriture on the development of immunocompetence in the rat, independent of concurrent nutritional health, environmental, and parasitic problems. The proposed research hypotheses include: 1. Iron nutrition influences components of non-specific immunity including circulating immunoproteins and secretory proteins which form the first line of defense in the host response. 2. The quality of iron nutriture during reproduction influences the development of the immune response in the maternal and neonatal organisms. In vitro indicators of immunocompetence which will be measured in varying states of iron nutriture include: secretory proteins, circulating immunoproteins, antibody producing capacity, and bactericidal activity of neutrophils. Results of this research defining the role of iron in disease resistance may be used to formulate health policies and develop techniques for treating and preventive clinical and non-clinical iron deficiency and also infectious diseases.

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Unknown (R22)
Project #
5R22HD015515-05
Application #
3445120
Study Section
Nutrition Study Section (NTN)
Project Start
1981-07-01
Project End
1986-08-31
Budget Start
1985-09-01
Budget End
1986-08-31
Support Year
5
Fiscal Year
1985
Total Cost
Indirect Cost
Name
University of Illinois Urbana-Champaign
Department
Type
Earth Sciences/Resources
DUNS #
041544081
City
Champaign
State
IL
Country
United States
Zip Code
61820
Lockwood, J F; Sherman, A R (1988) Spleen natural killer cells from iron-deficient rat pups manifest an altered ability to be stimulated by interferon. J Nutr 118:1558-63
Helyar, L; Sherman, A R (1987) Iron deficiency and interleukin 1 production by rat leukocytes. Am J Clin Nutr 46:346-52
Sherman, A R; Lockwood, J F (1987) Impaired natural killer cell activity in iron-deficient rat pups. J Nutr 117:567-71
Rosch, L M; Sherman, A R; Layman, D K (1987) Iron deficiency impairs protein synthesis in immune tissues of rat pups. J Nutr 117:1475-81
Sherman, A R; Helyar, L; Wolinsky, I (1985) Effects of dietary protein concentration on trace minerals in rat tissues at different ages. J Nutr 115:607-14
Kochanowski, B A; Sherman, A R (1985) Cellular growth in iron-deficient rats: effect of pre- and postweaning iron repletion. J Nutr 115:279-87
Kochanowski, B A; Sherman, A R (1985) Decreased antibody formation in iron-deficient rat pups--effect of iron repletion. Am J Clin Nutr 41:278-84