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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Analytical approaches to detect maternal/fetal genotype incompatibilities that increase risk of pre-eclampsia
BMC Medical Genetics, Volume 9, Article 60, Year 2008
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Description
Background: In utero interactions between incompatible maternal and fetal genotypes are a potential mechanism for the onset or progression of pregnancy related diseases such as pre-eclampsia (PE). However, the optimal analytical approach and study design for evaluating incompatible maternal/offspring genotype combinations is unclear. Methods: Using simulation, we estimated the type I error and power of incompatible maternal/offspring genotype models for two analytical approaches: Logistic regression used with case-control mother/offspring pairs and the log-linear regression used with case-parent triads. We evaluated a real dataset consisting of maternal/offspring pairs with and without PE for incompatibility effects using the optimal analysis based on the results of the simulation study. Results: We identified a single coding scheme for the incompatibility effect that was equally or more powerful than all of the alternative analysis models evaluated, regardless of the true underlying model for the incompatibility effect. In addition, the log-linear regression was more powerful than the logistic regression when the heritability was low, and more robust to adjustment for maternal or fetal effects. For the PE data, this analysis revealed three genes, lymphotoxin alpha (LTA), von Willebrand factor (VWF), and alpha 2 chain of type IV collagen (COL4A2) with possible incompatibility effects. Conclusion: The incompatibility model should be evaluated for complications of pregnancy, such as PE, where the genotypes of two individuals may contribute to the presence of disease. © 2008 Parimi et al; licensee BioMed Central Ltd.
Authors & Co-Authors
Parimi, Neeta
United States, Cleveland
Case Western Reserve University
Tromp, Gerard C.
United States, Detroit
Wayne State University
Kuivaniemi, Helena
United States, Detroit
Wayne State University
Nien, Jyh Kae
United States, Bethesda
National Institutes of Health Nih
Romero, Roberto J.
United States, Bethesda
National Institutes of Health Nih
Goddard, Katrina A.B.
United States, Cleveland
Case Western Reserve University
United States, Oakland
Kaiser Permanente
Statistics
Citations: 27
Authors: 6
Affiliations: 5
Identifiers
Doi:
10.1186/1471-2350-9-60
ISSN:
14712350
Research Areas
Genetics And Genomics
Maternal And Child Health
Sexual And Reproductive Health
Study Design
Case-Control Study