Development of taurine metabolism in beagle pups

Effects of taurine-free total parenteral nutrition

Michael Malloy, D. K. Rassin, G. E. Gaull, W. C. Heird

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In beagle pups (from 5 to 84 days of age), plasma taurine concentration decreased between 5 and 21 days of age with no change thereafter; cerebral taurine concentration decreased throughout the period of study but cerebral taurine content increased between 5 and 21 days of age; hepatic taurine content( but not concentration) increased throughout. Both hepatic cysteinesulfinic acid decarboxylase (CSAD) activity and the concentration of taurine-conjugated bile acids of gallbladder bile increased during the period of study. Plasma and cerebral taurine pools were not affected by taurine-free total parenteral nutrition (TPN). Hepatic taurine content also was not affected, but taurine concentration decreased; however, this change resulted from an increase in hepatic size. Hepatic CSAD activity of animals that received TPN was greater than that of 35-day control animals while the concentration of taurine-conjugated bile acids in the gallbladder bile was less. Although plasma taurine concentration was not affected by intravenous glucose therapy, both the hepatic taurine concentration and content of these animals were less than those of 35-day control animals. Cerebral taurine concentration and content of these animals, on the other hand, were greater. Hepatic CSAD activity of the animals that received only intravenous glucose was similar to that of controls, but the taurine-conjugated bile acid concentration in the gallbladder bile, like that of animals that received TPN, was less than that observed in 35-day control animals.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalBiology of the Neonate
Volume40
Issue number1-2
StatePublished - 1981
Externally publishedYes

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Total Parenteral Nutrition
Taurine
sulfoalanine decarboxylase
Liver
Gallbladder
Bile Acids and Salts
Bile
Glucose

ASJC Scopus subject areas

  • Developmental Biology
  • Pediatrics, Perinatology, and Child Health

Cite this

Development of taurine metabolism in beagle pups : Effects of taurine-free total parenteral nutrition. / Malloy, Michael; Rassin, D. K.; Gaull, G. E.; Heird, W. C.

In: Biology of the Neonate, Vol. 40, No. 1-2, 1981, p. 1-8.

Research output: Contribution to journalArticle

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