On the regional histology and histochemistry of the epididymis of the camel (Camelus dromedarius)

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Abstract
Distinct morphological regions, initial, middle and terminal segments, were distinguishable histologically. The middle segment was further subdivided into proximal, intermediate and distal parts. Periodic acid-Schiff positive, diastase-resistant reaction was detected in the blood vessels, subepithelial tissue and stereocilia of all segments. Acid phosphatase was demonstrated in the epithelial cells with the highest activity being in the proximal part of the middle segment. Non-specific esterase gave a similar reaction but the strongest activity was in the terminal segment. Alkaline phosphatase, ATPase and AMPase were of similar activity in the subepithelial tissue, blood vessels, stereocilia and luminal contents. The strongest reaction occurred in the middle segment. Lactate, succinate, glutamate and glucose-6-phosphate dehydrogenases were examined. Lactate dehydrogenase was more active than the others particularly in the terminal segment. Some reaction was found in the epithelial cells, subepithelial tissue and luminal contents.

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