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M T Jalali

Publications and source records attributed to M T Jalali.

5 recordsLinked to original sources

Serum isoamylases in liver diseases.

Total serum amylase and its pancreatic and salivary isoamylase activities were studied in serum from 30 normal volunteers and 30 patients with liver disease. Isoenzyme analysis was performed by inhibitor assay and electrophoretic techniques. Six out of 30 patients had total serum amylase activities which exceeded the mean +/- 2 SD value for normal volunteers. The prominent type of isoenzyme was the pancreatic, except for patients with alcoholic cirrhosis. There was no evidence of any other type of isoenzyme by the electrophoretic method, nor was there an age-dependent isoamylase distribution.

Adult↗

Ethnic 'hyperamylasaemia': clarification by isoamylase analysis.

Total serum amylase and its pancreatic (P-type) and salivary (S-type) isoamylase activities were measured in 92 individuals without pancreatic or salivary disease. They were divided into three ethnic sub-groups resident in the UK, namely native Britons, Asians and West Indians. The mean total amylase activity was highest in West Indians (383 U/l), intermediate in Asians (317 U/l) and lowest in Britons (179 U/l). Nine of the 28 Asians and 8 of the 16 West Indians had total amylase activities above the upper end of the reference range for Britons. Such a finding, if accompanied by abdominal symptoms, could lead to exhaustive pancreatic investigation in these ethnic groups unless the appropriate reference range is used. Isoenzyme analysis by inhibitor and electrophoretic techniques indicated that the increase in total amylase was due to increase in S-type isoamylase, P-type isoamylase or both. There was a good correlation between results by the two methods. These differences in serum amylase seem to be genetically determined.

Adult↗