Abstract
SINCE Fischer and Meyer-Betz isolated crystals of mesobilirubinogen from a pathological urine1, it has been generally assumed that urobilinogen and mesobilirubinogen are identical. However, Watson2 was unable to reduce crystalline urobilin from fæces or urine to crystals of mesobilirubinogen.
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References
Fischer and Meyer-Betz, Z. physiol. Chem., 75, 232; 1911.
Watson, Z. physiol. Chem., 204, 57; 1932. 208, 101; 1932. 221, 145; 1933. Proc. Exp. Biol. and Med., 30, 1207, 1210; 1933.
Lemberg, Chem. and Ind., 53, 179; 1934.
Fisher, Z. f. Biol., 65, 163; 1915.
Hoesch (Biochem. Z., 167, 107; 1926) observed that some urines gave violin bands with ferric chloride, whereas others did not.
Lichtenstein, Münchener mediz. Wochenschr., 72, 1962; 1925. Weiss, Biochem. Z., 207, 151; 1929.
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LEMBERG, R. Urobilinogen. Nature 134, 422 (1934). https://doi.org/10.1038/134422a0
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DOI: https://doi.org/10.1038/134422a0
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