Summary
The distribution of carbonic anhydrase in salivary glands of rats, mice, rabbits and cats has been analysed by a histochemical method. Enzymic activity was generally found in the striated ducts, the intraglandular excretory ducts and in the serous gland cells. The extraglandular main ducts also contain some carbonic anhydrase. The enrichment of carbonic anhydrase in the basal striations of the ducts is very similar to the enzyme localisation in the distal tubules of the kidney. This supports the view that in salivary glands Na+ is reabsorbed by the ducts; on the other hand it lends support to the suggestion that cations are excreted by these ducts. Furthermore the histochemical test probably indicates the structures, where in the ducts salivary bicarbonate is made from CO2.
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Eine vorläufige Mitteilung der Ergebnisse ist bereits während der 29. Tagung (Herbsttagung) der Deutschen Physiologischen Gesellschaft in Tübingen vom 29. 9.–3. 10. 1964 erfolgt [vgl. Pflügers Arch. ges. Physiol. 281, 54–55 (1964)].
Wesentliche Teile der vorliegenden Arbeit wurden von Herrn P. Tritschler der Medizinischen Fakultät der Universität Freiburg i. Br. als Dissertation vorgelegt.
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Leder, O., Tritschler, P. Nachweis höchster Carboanhydrase-Aktivitäten im Epithel der Speicheldrüsengänge. Pflügers Archiv 292, 229–238 (1966). https://doi.org/10.1007/BF00362738
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DOI: https://doi.org/10.1007/BF00362738