Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:3.4.21.1 (chymotrypsin)
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Trypsin and chymotrypsin concentrations were determined in 180 spot stool specimens from 110 control patients in hospital. The lower limit of normality for each enzyme was placed at the 5% level: 95% of this population excreted feces containing more than 100 mug. of chymotrypsin and 30 mug. of trypsin per g. of feces. Chymotrypsin concentrations appeared to be a more reliable guide to pancreatic function than trypsin concentrations.Fecal chymotrypsin concentrations were subnormal in five patients with chronic pancreatitis, borderline in one patient with relapsing pancreatitis, subnormal in one patient after pancreatectomy, and subnormal in five of nine with carcinoma of the pancreas. Subnormal concentrations of fecal chymotrypsin were found in seven of 21 patients with chronic liver disease related to alcoholism, eight of 32 with a partial gastrectomy, three of 10 with adult celiac disease and five of 16 with psoriasis.It appears that the determination of fecal chymotrypsin concentrations provides a valuable screening test for pancreatic exocrine deficiency. However, normal results may be found in some patients with pancreatic disease and subnormal values may occur in some patients with other conditions.
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PMID:Fecal chymotrypsin and trypsin determinations. 555 Mar 76