This project involves the development and validation of radio-immunoassays for the measurement of """"""""bone-specific"""""""" proteins in serum and urine. These will be used to assess bone formation and resorption in age-related bone loss and metabolic bone diseases. At first, the focus will be on bone Gla protein, osteonectin; then, on other noncollagenous bone-specific proteins, as these are isolated in Project 0003 and antibodies are developed. Assay of skeletal alkaline phosphatase which is near clinical usefulness will also be utilized in this project. A library of monoclonal and polyclonal antibodies to the proteins isolated on Project 0003 will be developed. Normal values will be established in healthy individuals of both sexes from ages 20-90 years. Criteria for exclusion of patients with bone disease are outlined. Studies will then be performed in patients with osteoporosis, hyperparathyroidism, hyperthyroidism, Paget's disease, steriod-induced osteoporosis, and other metabolic bone diseases, as well as patients with osteogenic sarcoma, and carcinoma of the prostate. The relationship to vitamin D metabolism will be evaluated by comparing serum levels in patients with vitamin D deficiency and subjects with hypervitaminosis D.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Research Program Projects (P01)
Project #
5P01AG004875-09
Application #
3790009
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
9
Fiscal Year
1992
Total Cost
Indirect Cost
Name
Mayo Clinic, Rochester
Department
Type
DUNS #
City
Rochester
State
MN
Country
United States
Zip Code
55905
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