Summary
Preparations of histaminase from hog kidney, having potencies of at least one unit per mg of protein were found to be highly toxic when injected intravenously into dogs in amounts above 300 mg. The toxicity apparently was not due to histaminase itself because a preparation of histaminase, which had been inactivated, was found to be even more toxic per mg of protein.
The toxic symptoms observed were trembling of extremities, coldness, ischemia of the gastric mucosa, vomiting, and defecation. This condition prevented normal activity of the gastric mucosa, and therefore made it impossible to use the inhibition of gastric secretion as an assay of the activity of histaminasein vivo, at least in the present state of purification of histaminase.
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Laskowski, M., Lemley, J. M., and Keith, C. K.: Arch. Biochem. 1945,6, 105.
Lemley, J. M., and Laskowski, M.: Arch. Biochem., ibid., 1945,6, 115.
Necheles, H., and Olson, W. H.: Am. J. Dig. Dis., 1941,8, 217.
Atkinson, A. J., Ivy, A. C., and Bass, V.: Am. J. Physiol., 1941,132, 51.
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Rostorfer, H.H., Laskowski, M. Action of histaminase preparations in the heidenhain dog. Jour. D. D. 12, 337–339 (1945). https://doi.org/10.1007/BF02998368
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DOI: https://doi.org/10.1007/BF02998368