Figure 3.

(A) Representative photomicrographs of PicroSirius red (PSR)-stained sections of the duodenum and jejunum. Mature, thick collagen fibers are red-orange, and immature, thin collagen fibers are green. Intestine sections from the CONT group, irrespective of the analyzed fragment, contained thick and thin fibers, with a predominance of thick fibers (red, mature). An increase in immature fibers (thin and green) was observed after gastrectomy. (B) Representative photomicrographs of PSR-stained sections of the liver. Liver sections from the CONT group contained thick and thin fibers, with a predominance of thick fibers (red, mature). An increase in immature fibers (thin and green) was observed in the gastrectomy-treated group. Red arrow indicates mature collagen; green arrow indicates immature collagen. All the scale bars represent 50 μm.