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Does human pancreas contain salivary-type isoamylase?
  1. J Shimamura,
  2. L Fridhandler,
  3. J E Berk

    Abstract

    Amylase isoenzyme analysis was made of extracts of normal human pancreatic tissue by first conducting ion exchange chromatography of the purified material. This gave evidence of only pancreatic type (P-type) isoamylase for all purposes. However, when effluent fractions in which salivary type isoamylase would ordinarily be expected to be present were harvested, pooled, concentrated, and rechromatographed, the pancreatic extracts were found to contain some salivary type (S-type) isoamylase. The latter accounted for approximately 0-8 to 1-7% of the total recovered amylase activity. This finding of S-type isoamylase in normal human pancreas potentially has important bearing on the interpretation of isamylase analysis.

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