Everyday our cells take in nutrients from food and convert them into the building blocks that make life possible. However, it has been challenging to pinpoint exactly how a single nutrient or vitamin changes gene expression and physiology. Scientists at the University of Massachusetts Medical School have developed a novel interspecies model system that allows these questions to be answered. In a study appearing in the journal Cell, UMMS researchers use this new approach to show how bacterially supplied vitamin B12 changes gene expression, development and fertility in the model organism C. elegans.
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