Animals were killed under anaesthesia (400 mg/kg bodyweight ketamine, 40 mg/kg bodyweight xylazine) after one or four weeks post-transplantation. Samples of liver tissue and pancreatic tissue were either frozen or perfusion-fixed and embedded in paraffin or fixed in glutaraldehyde and embedded in glycidether. Paraffin slides of 1-2 μm thickness were serially cut and stained with H&E and the periodic acid Schiff (PAS) reaction.
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