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  1. Article

    Open Access

    Maternal and cord blood vitamin D level and the infant gut microbiota in a birth cohort study

    Mounting evidence suggests both vitamin D and the early life gut microbiome influence childhood health outcomes. However, little is known about how these two important exposures are related. We aimed to examin...

    Zeinab Kassem, Alexandra Sitarik in Maternal Health, Neonatology and Perinatol… (2020)

  2. No Access

    Article

    Risk Factors for Hepatitis C Infection Among Vietnam Era Veterans Versus Nonveterans: Results from the Chronic Hepatitis Cohort Study (CHeCS)

    Research suggests that Vietnam era veterans have a higher prevalence of hepatitis C virus (HCV) than other veterans and nonveterans. However, the reasons for this are unclear, since this research has been cond...

    Joseph A. Boscarino, Alexandra Sitarik, Stuart C. Gordon in Journal of Community Health (2014)

  3. Article

    Open Access

    Evaluating the consistency of gene sets used in the analysis of bacterial gene expression data

    Statistical analyses of whole genome expression data require functional information about genes in order to yield meaningful biological conclusions. The Gene Ontology (GO) and Kyoto Encyclopedia of Genes and G...

    Nathan L Tintle, Alexandra Sitarik, Benjamin Boerema, Kylie Young in BMC Bioinformatics (2012)

  4. Article

    Open Access

    Evaluating methods for combining rare variant data in pathway-based tests of genetic association

    Analyzing sets of genes in genome-wide association studies is a relatively new approach that aims to capitalize on biological knowledge about the interactions of genes in biological pathways. This approach, ca...

    Ashley Petersen, Alexandra Sitarik, Alexander Luedtke, Scott Powers in BMC Proceedings (2011)

  5. Article

    Open Access

    Evaluating methods for the analysis of rare variants in sequence data

    A number of rare variant statistical methods have been proposed for analysis of the impending wave of next-generation sequencing data. To date, there are few direct comparisons of these methods on real sequenc...

    Alexander Luedtke, Scott Powers, Ashley Petersen, Alexandra Sitarik in BMC Proceedings (2011)