A novel flow cytometry-based method of analyzing Heinz bodies

Area of Science:

• Hematology
• Analytical Chemistry
• Clinical Diagnostics

Background:

• Heinz bodies are crucial for diagnosing and managing patients.
• Current microscopic examination methods for Heinz bodies have limitations.
• There is a need for improved diagnostic techniques for Heinz bodies.

Purpose of the Study:

• To explore the potential of flow cytometry for examining Heinz bodies.
• To develop a more efficient method for Heinz body detection.

Main Methods:

• Whole-blood samples from G6PD-deficient patients and healthy volunteers were collected.
• Acetylphenylhydrazine was used to induce Heinz body formation in red blood cells (RBCs).
• RBCs with Heinz bodies were analyzed using a FACSCanto II flow cytometer.

Main Results:

• Induced Heinz bodies in RBCs exhibited detectable fluorescence.
• Flow cytometry detected Heinz bodies with fluorescence emission peaking at 45 minutes, stable for 72 hours.
• The method detected Heinz bodies even at 0.1% of the RBC population, with significant differences observed between G6PD-deficient patients and healthy donors.

Conclusions:

• Heinz bodies induced by acetylphenylhydrazine fluoresce and can be detected by flow cytometry.
• This flow cytometry method shows potential for investigating Heinz body formation in clinical settings.
• The developed technique offers a sensitive and stable approach for Heinz body analysis.