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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. 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)

  3. 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)