The applicant proposes to measure changes in the size and number of neurons and their dendrites and axons in the TThC in his transgenic mice. To determine the mechanisms by which IGF-I influences neural development, he will examine IGF-I's in vivo effects on a) neuronal cell proliferation and migration, b) neuronal apoptosis, c) the regulation of type I receptors and d) the expression of candidate genes that may mediate the changes induced by IGF-I. The modulatory effects of IGFBPs will also be studied using primary neuronal studies. Finally, the applicant will test the hypothesis that decreases in IGF-I expression or actions mediate the brain pathology of malnutrition. He predicts that IGF-I overexpression will ameliorate and IGFBP-1 expression will exacerbate malnutrition's effects on the TThC.

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Research Project (R01)
Project #
5R01HD008299-26
Application #
2888790
Study Section
Endocrinology Study Section (END)
Program Officer
Catz, Charlotte S
Project Start
1977-06-01
Project End
2000-05-31
Budget Start
1999-06-01
Budget End
2000-05-31
Support Year
26
Fiscal Year
1999
Total Cost
Indirect Cost
Name
University of North Carolina Chapel Hill
Department
Pediatrics
Type
Schools of Medicine
DUNS #
078861598
City
Chapel Hill
State
NC
Country
United States
Zip Code
27599
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