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i

Cholinesterase Measurements with an Automated Kit



Details

  • Personal Author:
  • Description:
    Background: The Test-mate kit determines acetylcholinesterase (AChE, EC 3.1.1.7) and hemoglobin content of a drop of blood, displaying enzyme activities normalized to 25 degrees C. Previous models produced inconsistent results at different temperatures. This report focuses on the current model, ChE 400, and two instruments of a previous OP model. Methods: AChE activities were determined by the Ellman assay, using the three kits and a 96-well microplate reader. Temperatures ranged from 10 to 37 degrees C. Fetal bovine serum was the source of AChE. Results: Normalized activities decreased below 20 degrees C in the ChE model and below 25 degrees C in the OP models. Activities of the same serum sample differed between the three Test-mate kits, ranging from 1.03 to 1.49 moles/min/ml. Percent errors were greater than with the microplate reader at all temperatures. Conclusions: Neither we nor the manufacturer recommend the current Test-mate model for fieldwork. Nevertheless, there have been field measurements with Test-Mate kits, and we recommend that an enzyme activity standard be run in parallel with their use. [Description provided by NIOSH]
  • Subjects:
  • Keywords:
  • ISSN:
    0271-3586
  • Document Type:
    Text
  • Funding:
    Cooperative Agreement
  • Genre:
    Journal Article
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    49-53
  • Volume:
    42
  • NIOSHTIC Number:
    nn:20032411
  • Citation:
    Am J Ind Med 2002 Aug; 42(S2):49-53
  • Contact Point Address:
    Barry W. Wilson, Animal Science Department, Meyer Hall, University of California, 1 Shields Ave., Davis, CA 95616
  • Email:
    bwwilson@ucdavis.edu
  • Federal Fiscal Year:
    2002
  • Performing Organization:
    University of California - Davis
  • Peer Reviewed:
    True
  • Start Date:
    19900930
  • Source Full Name:
    American Journal of Industrial Medicine
  • End Date:
    20020929
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:1676d987b0ff0478fbe2119908277635295dd1961422c6706eb63e42537566cb56eb394ada245ccb562756948449d114b71ec7c135fbbb2d1319afe05ceaf850
  • Download URL:
  • File Type:
    Filetype[PDF - 162.97 KB ]
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