Bile Pigment Excretion in Amphibia View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1961-04

AUTHORS

ROGER LESTER, RUDI SCHMID

ABSTRACT

IN man and in other mammals, bilirubin is excreted in conjugated form, mainly as the glucuronide. Since in mammalian fœtal liver the enzymatic mechanism for glucuronide formation is poorly developed, reaching its full capacity only after birth, transient hyperbilirubinæmia is frequently observed during the neonatal period1. In the amphibian genus, Rana, hepatic glucuronide formation is absent in the larva, but present in the adult2. The larval forms undergo extra-uterine development and hence are readily accessible. These Amphibia would represent an excellent experimental model for studying various aspects of neonatal hyperbilirubinæmia, if it could be established that they, like mammals, excrete bilirubin as glucuronide. Therefore, we have examined amphibian bile pigment excretion to determine, first, whether in the adult Rana bilirubin is excreted as a glucuronide; secondly, whether metamorphosis is associated with qualitative or quantitative changes in pigment excretion; and thirdly, whether the excreted pigment is biliverdin, as has been postulated previously3, bilirubin, or another pigment. More... »

PAGES

452-452

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/190452a0

DOI

http://dx.doi.org/10.1038/190452a0

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1044266096

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/13761202


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