Summary
By combing the indirect method of aldolase activity of Warburg and Christian, which consisted in the measurement of reduction of DPN in the presence of glyceraldehyde-3-phosphate dehydrogenase and arsenate, with nitro-BT reduction and we could obtain the much better method of demonstrating aldolase than that of Allen and Bourne.
The optimal incubating mixture was composed of 1) 10 ml 0.02 M sodium fructose-1,6-diphosphate, 2) 5 mg DPN, 3) 10 mg nitro-BT, 4) 10 ml of 0.05 M arsenate-HCl buffer (pH 7.6). Fresh frozen section, which were fixed briefly in 80% cold ethanol, gave a better staining results. The distribution of aldolase of some organs of rat and the validity and limitation of the method were described.
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Abe, T., Shimizu, N. Histochemical method for demonstrating aldolase. Histochemie 4, 209–212 (1964). https://doi.org/10.1007/BF00290865
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DOI: https://doi.org/10.1007/BF00290865