The usefulness of measuring serum-conjugated bile acid concentrations by radioimmunoassay in colchicine-modified carbon tetrachloride-induced liver lesions in rats was assessed by comparing the concentrations with the results of some routinely employed liver function tests such as serum aspartate transaminase, alanine transaminase, alkaline phosphatase, and serum total protein. The serum cholylglycine levels were significantly (P less than 0.003) raised along with the serum aspartate transaminase (P less than 0.01) and alanine transaminase (P less than 0.01) activity levels in the carbon tetrachloride-treated group of rats when compared with the group treated with carbon tetrachloride plus colchicine. Colchicine prevented the increase in serum cholylglycine, aspartate transaminase, alanine transaminase, and alkaline phosphatase induced by carbon tetrachloride but had no effect on serum total protein levels. This study suggests that radioimmunoassay of serum cholyglycine is a sensitive and specific indicator of liver injury and it is a useful tool in monitoring the treatment provided.
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