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The species distribution of xanthine oxidase

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Al-Khalidi, UAS, Chaglassian, TH·1965·Biochemical Journal

Abstract

1. The distribution of xanthine oxidase in blood and tissues of various animals was studied by means of a radioactive assay capable of detecting 10(-7) unit of enzyme. The method was shown to be applicable to tissues with a high uricase content. 2. Of 16 mammalian species examined, six had low concentrations of xanthine oxidase in the serum. In six non-mammalian species, no activity was detected in the serum. 3. The enzyme was not found in the blood cells of any mammals, but was present in the nucleated red blood corpuscles of chicken, turtle and tortoise. 4. Studies of the tissue distribution in four species demonstrated high activities in the liver and intestinal mucosa and consistently low activities in skeletal muscle, heart and brain. 5. There is a rough correlation between the activity of enzyme in serum and its activity in lung tissue in 12 mammalian species. In the dog, left-atrial blood had higher concentrations of xanthine oxidase than right-atrial blood.

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Metadata

Authors
Al-Khalidi, U., & Chaglassian, T.
Venue
Biochemical Journal
Published
1965-10-01
Volume
97
Issue
1
Pages
318-320
ISSN
0006-2936 (ISSN-L)
OpenAlex
W2248685074
Cited by
271
References
0
FWCI
2.34
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: The species distribution of xanthine oxidase. https://app.cochat.ai/papers/10.1042/bj0970318
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Al-Khalidi, U., & Chaglassian, T. (1965). The species distribution of xanthine oxidase. Biochemical Journal. https://doi.org/10.1042/bj0970318

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.