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In this study, renal tissue, subdivided into the cortex and medulla of Wistar rats subjected to a cafeteria diet (CAF) for 24 days or to normal diet, was used to analyze whether the renal enzyme Na,K‐ATPase activity was modified by CAF diet, as well as to analyze the α1 subunit of renal Na,K‐ATPase expression levels. The lipid profile of the renal plasma membrane and oxidative stress were verified...