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![](https://webarchive.library.unt.edu/eot2008/20081109112913im_/http://www.ars.usda.gov/incme/images/Research_head.gif) |
Research Project:
DIET-GENE INTERACTIONS AND MICRONUTRIENT STATUS
Location: Human Nutrition Research Center on Aging
Project Number: 1950-51520-009-02
Project Type:
Specific Cooperative Agreement
Start Date: Oct 01, 2006
End Date: Sep 30, 2011
Objective:
Identification of risk factors of low calcium absorption in humans.
Determination of molecular mediators of Vitamin D-mediated calcium transport in Caco-2 cells, a human intestinal cell line.
Approach:
The primary approach is the determination of the role of intestinal resistance to the hormonal actions of vitamin D on calcium absorption. We intend to pursue this goal by studying elderly humans, as well as aged rodents, which provide a good experimental model of aging and changes in vitamin D-mediated calcium absorption. In addition, we are working to identify key molecular determinants of vitamin D action and cellular calcium transport in the gut and assessing their functional importance using various recombinant DNA technologies in Caco-2 cells, a human intestinal cell line. The expected outcome of this comprehensive approach is to gain a better understanding of ways to optimize dietary intakes to promote better health and reduce the costly burdens of osteoporosis.
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Last Modified: 11/08/2008
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