Although extensively studied, the relationship between dietary antigens-in particular, gluten-and IgA nephropathy remains unclear. Using a double transgenic mouse model of IgA nephropathy that expresses both human IgA1 and human CD89, Papista et al. report that a gluten-free diet protects against the development of IgA deposition and glomerular injury, and that these events occur with the introduction of dietary gluten.
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