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Related Experiment Videos

Reticulocyte count using thiazole orange. A flow cytometry method.

L Van Hove1, W Goossens, V Van Duppen

  • 1University Hospital Leuven, Department of Haematology, Belgium.

Clinical and Laboratory Haematology
|January 1, 1990
PubMed
Summary
This summary is machine-generated.

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Flow cytometry using thiazole orange offers a fast, reliable alternative to manual reticulocyte counts. This RNA stain method provides consistent results, minimizing the need for microscopic reanalysis.

Area of Science:

  • Hematology
  • Clinical Pathology
  • Biotechnology

Background:

  • Microscopic reticulocyte counting is a standard diagnostic method.
  • Flow cytometry offers potential for automation and improved efficiency.
  • RNA-binding fluorochromes can identify immature red blood cells.

Purpose of the Study:

  • To evaluate thiazole orange and Retic-COUNT software for routine reticulocyte quantitation.
  • To assess the performance of flow cytometry for reticulocyte analysis.
  • To compare flow cytometry results with traditional microscopic methods.

Main Methods:

  • Utilized thiazole orange, an RNA-binding fluorochrome, to label reticulocytes.
  • Employed the Retic-COUNT software package for semi-automated cell analysis.

Related Experiment Videos

  • Tested performance on various flow cytometry instruments using dipotassium EDTA anticoagulated blood.

    • Main Results:

    • Consistent results were achieved with blood samples stable for 30 hours post-venesection.
    • Incubation parameters (2-7 hours at 25°C, up to 30°C) showed no significant impact on results.
    • The method demonstrated good linearity, precision, and accuracy across different reticulocyte counts.
    • Software-based gate corrections effectively eliminated artifacts from interfering factors.

    Conclusions:

    • Thiazole orange flow cytometry is a fast and reliable method for routine reticulocyte quantitation.
    • The technique allows flexibility in specimen handling and assay performance.
    • Software corrections minimize the need for manual microscopic review, enhancing efficiency.