Histochemical studies on macula densa cells in the juxtaglomerular complex of rat ren in normal and experimental conditions.

The author pays particular attention to the JGA cells of a rat kidney macula densa in noraml and experimental conditions (a single injection of Unazid, Plive, in a dose of 15 mg/kg). The activity of alkaline phosphatase and adenosine-triphosphatase and acid and neutral mucopolysaccharides are negative in these cells, whereas, acid phosphatase and thiamine pyrophatase in the macula densa cells show an activity exclusively near the nucleus, usually in Golgi's zone. The functional meaning of results obtained from the authors own research and that of others was also discussed in the paper.