Abstract:
:Carbon tetrachloride (CCl4) caused a dose-dependent increase in urinary taurine which correlated with both the histological and biochemical assessment of liver damage. The peak elevation in urinary taurine occurred within the first 48 h after dosing but there was still significant taurinuria 72 and 96 h after the intermediate dose (1 ml.kg-1) and highest dose (2 ml.kg-1), respectively. Levels of taurine in serum were also elevated over the 24 h period following a hepatotoxic dose (2 ml.kg-1) of CCl4. In contrast, although initially elevated, levels of taurine in the liver declined over the 24 h period following dosing and were significantly lower 96 h after a hepatotoxic dose of CCl4 (2 ml.kg-1). Male rats showed a different urinary profile for taurine than female rats after dosing with CCl4. A reduction in food intake seemed to lower urinary taurine levels although these changes were not statistically significant. There was a significant correlation between the level of urinary taurine and the level of serum AST for individual animals given a hepatotoxic dose of CCl4 (2 ml.kg-1). The data presented suggest that: i) taurine is produced by the liver in response to a toxic insult and subsequent leakage from damaged cells leads to increased levels in the urine; ii) the urinary taurine level may be a useful non-invasive marker of liver damage.
journal_name
Arch Toxicoljournal_title
Archives of toxicologyauthors
Waterfield CJ,Turton JA,Scales MD,Timbrell JAdoi
10.1007/BF01973715subject
Has Abstractpub_date
1991-01-01 00:00:00pages
548-55issue
7eissn
0340-5761issn
1432-0738journal_volume
65pub_type
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