Histochemical studies of the skin and intestine of dogs infected with Ancylostoma caninum larvae

Abstract

The penetration of the juveniles through the intestinal tissue caused breakdown of the carbohydrate complexes present in the area and in general the infected intestinal tissue had low carbohydrate content as compared to the control as revealed by several staining procedures. Results of the tests for lipids and proteins were not conclusive. The cytoplasmic RNA of the infected intestine and skin became more pyroninophilic and could account for an increase of RNA content in the infected tissue. There was an increase of the alkaline phosphatase activity and a decrease in the fibrin content in the infected intestine. Tests for pigments and amyloid and hyaluronidase extraction procedures were inconclusive.