抄録
The authors studied the correlation between serum alanine aminotransferase (ALT) activity and salivary ALT activity using ten healthy young adults and ten liver disease patients. Firstly, in order to establish the experimental conditions, we investigated the influence of occult blood and salivary secretion rate on the salivary ALT activity using healthy subjects. Then, simultaneous analysis of the serum and salivary ALT activities were conducted to investigate the correlation using the twenty subjects. As the results, although salivary ALT activity was as low as one third of serum ALT activity, the presence of salivary ALT activity was confirmed in healthy young adults whose saliva was not contaminated with serum. The salivary ALT activity of liver disease patients showed higher values than that of healthy young adults. In other word, if a threshold of salivary ALT activity was established, healthy young adults could be distinguished from liver disease patients.
