Classic galacosemia has failed to be adequately treated by dietary restrictions of galactose with resulting long-term serious complications. We are now challenged to understand this enigmatic disorder and to solve the dilemma of how to adequately provide therapy for affected patients. This proposal encompasses a broad spectrum of research into the basic biochemical and genetic abnormalities in patients with deficiency of galactose-1-phosphate uridyltransferase. It presents a concerted effort to wed both basic and clinical investigation. It presents the potential for application of new techniques and experimental approaches. It responds to a mandate for targeting a vigorous research effort to understand the pathobiochemistry and molecular genetic basis for galactosemia and to utilize the results to develop new therapeutic strategies. To answer the enigma of galactosemia the program consists of three projects supported by two cores. These are: Project 1: Galactose Pathways and Their Regulation in Galactosemic Patients. Project 2: Sugar Nucleotide Metabolism and Metabolic Flux in Normal and Galactosemic cells. Project 3: Molecular Genetics. Cores A - Analytical and Cell Culture Core B - Administrative Core

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Research Program Projects (P01)
Project #
5P01HD029847-03
Application #
2202225
Study Section
Special Emphasis Panel (SRC (SS))
Project Start
1993-08-01
Project End
1996-07-31
Budget Start
1995-08-01
Budget End
1996-07-31
Support Year
3
Fiscal Year
1995
Total Cost
Indirect Cost
Name
Children's Hospital of Philadelphia
Department
Type
DUNS #
073757627
City
Philadelphia
State
PA
Country
United States
Zip Code
19104
Berry, Gerard T; Moate, Peter J; Reynolds, Robert A et al. (2004) The rate of de novo galactose synthesis in patients with galactose-1-phosphate uridyltransferase deficiency. Mol Genet Metab 81:22-30
Wehrli, Suzanne L; Reynolds, Robert; Chen, Jie et al. (2002) Metabolism of 13C galactose by lymphoblasts from patients with galactosemia determined by NMR spectroscopy. Mol Genet Metab 77:296-303
Leslie, N D; Bai, S (2001) Functional analysis of the mouse galactose-1-phosphate uridyl transferase (GALT)promoter. Mol Genet Metab 72:31-8
Yager, C; Gibson, J; States, B et al. (2001) Oxidation of galactose by galactose-1-phosphate uridyltransferase-deficient lymphoblasts. J Inherit Metab Dis 24:465-76
Wang, Z J; Berry, G T; Dreha, S F et al. (2001) Proton magnetic resonance spectroscopy of brain metabolites in galactosemia. Ann Neurol 50:266-9
Berry, G T; Leslie, N; Reynolds, R et al. (2001) Evidence for alternate galactose oxidation in a patient with deletion of the galactose-1-phosphate uridyltransferase gene. Mol Genet Metab 72:316-21
Lai, K; Elsas, L J (2001) Structure-function analyses of a common mutation in blacks with transferase-deficiency galactosemia. Mol Genet Metab 74:264-72
Wehrli, S L; Reynolds, R; Chen, J et al. (2001) Galactose metabolism in normal human lymphoblasts studied by (1)H, (13)C and (31)P NMR spectroscopy of extracts. NMR Biomed 14:192-8
Elsas, L J; Lai, K; Saunders, C J et al. (2001) Functional analysis of the human galactose-1-phosphate uridyltransferase promoter in Duarte and LA variant galactosemia. Mol Genet Metab 72:297-305
Ning, C; Reynolds, R; Chen, J et al. (2001) Galactose metabolism in mice with galactose-1-phosphate uridyltransferase deficiency: sucklings and 7-week-old animals fed a high-galactose diet. Mol Genet Metab 72:306-15

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