Integrating genetics with newborn metabolomics in infantile hypertrophic pyloric stenosis.
INTRODUCTION: Infantile hypertrophic pyloric stenosis (IHPS) is caused by hypertrophy of the pyloric sphincter muscle. OBJECTIVES: Since previous reports have implicated lipid metabolism, we aimed to (1) investigate associations between IHPS and a wide array of lipid-related metabolites in newborns, and (2) address whether detected differences in metabolite levels were likely to be driven by genetic differences between IHPS cases and controls or by differences in early life feeding patterns. METHODS: We used population-based random selection of IHPS cases and controls born in Denmark between
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