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Related Experiment Video

Updated: Sep 5, 2025

Fast and Specific Assessment of the Halogenating Peroxidase Activity in Leukocyte-enriched Blood Samples

Fast and Specific Assessment of the Halogenating Peroxidase Activity in Leukocyte-enriched Blood Samples

Published on: July 28, 2016

H ₂ O ₂ Release Assay.

Santosh Yadav¹, Shruthi Sanjitha Sampath¹, Brian J Deskin¹

¹John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA.

|July 8, 2022

Summary

This summary is machine-generated.

This study presents a new, cost-effective assay for detecting hydrogen peroxide (H2O2) released by living cells. The method is sensitive and specific, offering a reliable tool for biological research and disease state analysis.

Keywords:

Free radicals Homovanillic acid Hydrogen peroxide NADPH oxidases Oxidative stress Reactive oxygen species Redox biology

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Simultaneous Measurement of Superoxide/Hydrogen Peroxide and NADH Production by Flavin-containing Mitochondrial Dehydrogenases

Simultaneous Measurement of Superoxide/Hydrogen Peroxide and NADH Production by Flavin-containing Mitochondrial Dehydrogenases

Published on: February 24, 2018

Area of Science:

Biochemistry
Cell Biology
Analytical Chemistry

Background:

Reactive oxygen species (ROS) are crucial signaling molecules in biology.
ROS, including hydrogen peroxide (H2O2), are implicated in oxidative stress and disease.
Existing methods for H2O2 detection can be costly or lack sensitivity.

Purpose of the Study:

To develop a simple, reliable, sensitive, and specific assay for quantifying H2O2 release from biological samples.
To provide an inexpensive alternative to commercial H2O2 detection kits.

Main Methods:

Utilized the reaction of H2O2 with heme peroxidases.
Employed para-substituted phenolic compounds that are converted to fluorescent dimers.
Applied the assay to living cells, organoids, and tissues.

Main Results:

Demonstrated a simple, reliable, sensitive, and specific method for H2O2 detection.
The assay proved to be cost-effective compared to commercial kits.
Successfully quantified H2O2 release from various biological systems.

Conclusions:

The developed assay is a valuable tool for studying H2O2 in biological systems.
Its cost-effectiveness and high performance make it accessible for broad research applications.
Provides a new method for investigating the role of H2O2 in health and disease.