The objective of this research is to develop statistical methods to assess whether mitochondrial DNA (mtDNA) mutations are involved in the etiology of disease and to estimate the contribution of mtDNA mutations to the disease.
The specific aims are as follow: (1) to propose sampling schemes and test statistics to identify if mtDNA mutations are involved in a disease; to compare the power of the test statistics using different sampling schemes assuming mtDNA mutations are involved in the disease; (2) to study if mtDNA mutations are the primary cause of the disease or nuclear mutations may also be involved in the etiology of the disease; in the later case, study the interaction between mtDNA mutations and nuclear mutations; and (3) to estimate the contribution of mtDNA mutations to the disease. The test methods developed in this study will be evaluated and validated through simulation studies and will be applied to a collection of pedigrees for Leber's hereditary optic neuropathy (LHON), a disease known to be related to mtDNA mutations. The test methods and statistics will be applied to field studies on insulin-dependent diabetes mellitus (IDDM). Continuing collaborations on other complex diseases will be sought during the tenure of this project.

Agency
National Institute of Health (NIH)
Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Type
First Independent Research Support & Transition (FIRST) Awards (R29)
Project #
5R29DK053392-04
Application #
6342509
Study Section
Epidemiology and Disease Control Subcommittee 2 (EDC)
Program Officer
Akolkar, Beena
Project Start
1998-03-15
Project End
2002-12-31
Budget Start
2001-01-01
Budget End
2001-12-31
Support Year
4
Fiscal Year
2001
Total Cost
$116,024
Indirect Cost
Name
University of Southern California
Department
Biostatistics & Other Math Sci
Type
Schools of Arts and Sciences
DUNS #
041544081
City
Los Angeles
State
CA
Country
United States
Zip Code
90089
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Sun, Fengzhu; Cui, Jing; Gavras, Haralambos et al. (2003) A novel class of tests for the detection of mitochondrial DNA-mutation involvement in diseases. Am J Hum Genet 72:1515-26
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