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Updated: Jul 5, 2026
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Determination of Chemical Inhibitor Efficiency against Intracellular Toxoplasma Gondii Growth Using a Luciferase-Based Growth Assay
Published on: April 29, 2020
[A modified dye test for Toxoplasma gondii infection]
Hui Xu1, An-Ping Ni, Qing-Tao Cui
1Department of Clinical Laboratory, Meitan General Hospital, Beijing 100028, China. huixu2004@tom.com
Summary
A new microplate dye test was developed to detect Toxoplasma antibodies using cell-cultured tachyzoites. This method optimizes detection by identifying the ideal tachyzoite concentration and staining percentage for accurate results.
Area of Science:
- Parasitology
- Immunology
- Biotechnology
Context:
- Toxoplasma gondii infections pose significant public health risks.
- Accurate serological diagnostic methods are crucial for managing toxoplasmosis.
- Existing diagnostic techniques may require optimization for sensitivity and efficiency.
Purpose:
- To establish a modified microplate dye test for detecting Toxoplasma antibodies.
- To optimize the assay using cell-cultured Toxoplasma gondii tachyzoites.
- To determine optimal tachyzoite concentration and staining criteria for reliable results.
Summary:
- A microplate dye test was developed using methylene blue staining to quantify Toxoplasma antibodies.
- The assay involves estimating stained and unstained tachyzoites, with 50% stained tachyzoites determining the final dilution.
- Optimal test performance was achieved with a tachyzoite suspension concentration of 10(9)/ml and 1% sodium citrate.
Impact:
- This optimized dye test offers a potentially more accurate and efficient method for Toxoplasma antibody detection.
- The findings contribute to improved diagnostic capabilities for toxoplasmosis.
- The established protocol can aid in epidemiological studies and clinical management of infections.
