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Lean Zucker rat liver. Enzyme activity of DPP-IV. a-b) DPP-IV enzyme activity is similar to that observed in the liver of Wistar rats, with intense positivity at bile canaliculi (arrows), Hering canals (H), small (d) and large (D) bile ducts level; sinusoidal cells (arrowheads) are also positive; A, artery. a) differential interference contrast; b) brightfield. P, portal vein; CL, centrolobular vein.
