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Open AccessJournal ArticleDOI

Measuring reactive oxygen and nitrogen species with fluorescent probes: challenges and limitations.

TLDR
A critical analysis of the challenges and limitations of the most widely used fluorescent probes for detecting and measuring reactive oxygen and nitrogen species and proposed guidelines that will help present and future researchers with regard to the optimal use of selected fluorescent probes and interpretation of results are presented.
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This article is published in Free Radical Biology and Medicine.The article was published on 2012-01-01 and is currently open access. It has received 1423 citations till now.

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Sea Squirt (Halocynthia roretzi) Hydrolysates Induce Apoptosis in Human Colon Cancer HT-29 Cells through Activation of Reactive Oxygen Species.

TL;DR: Results suggest that SSQ may be useful for functional food ingredients and/or nutraceuticals as well as anticancer effect on human colon cancer HT-29 cells.
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Expression and functional analysis of the hydrogen peroxide biosensors HyPer and HyPer2 in C2C12 myoblasts/myotubes and single skeletal muscle fibres.

TL;DR: The results show that the expression of the HyPer biosensor in skeletal muscle cells is possible, and it is demonstrated that HyPer is functional and that this biosensor detects changes and fluctuations in intracellular H 2 O 2 in a reversible manner.
Journal Article

A novel approach to study oxidative stress in thyroid diseases: a preliminary study

TL;DR: This preliminary study demonstrates the opportunity to use the coupling of the EPR-spin trapping technique with the hydroxylamine 1-hydroxy-3-carboxy-pyrrolidine, to detect oxidative stress in the human blood of patients with thyroid disease, and confirms that this is a sensible, precise and valid method to study the oxidative stress.
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Detection of hydrogen peroxide production in the isolated rat lung using Amplex red.

TL;DR: Results suggest complex II as a potentially important source and/or regulator of mitochondrial H2O2, and that most of acute hyperoxia-enhanced lung rate of H2 O2 release is from nonmitochondrial rather than mitochondrial sources.
References
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Book

Free radicals in biology and medicine

TL;DR: 1. Oxygen is a toxic gas - an introduction to oxygen toxicity and reactive species, and the chemistry of free radicals and related 'reactive species'
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ROS as signalling molecules: mechanisms that generate specificity in ROS homeostasis

TL;DR: The pathways that regulate ROS homeostasis are crucial for mitigating the toxicity of ROS and provide strong evidence about specificity in ROS signalling.
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Evaluation of the probe 2',7'-dichlorofluorescin as an indicator of reactive oxygen species formation and oxidative stress.

TL;DR: Data suggest that H2O2-Fe(2+)-derived oxidant is mainly responsible for the nonenzymatic oxidation of DCFH, which remains an attractive probe as an overall index of oxidative stress in toxicological phenomena.
Journal ArticleDOI

Reconciling the chemistry and biology of reactive oxygen species

TL;DR: This review examines how target selectivity and antioxidant effectiveness vary for different oxidants and highlights areas where greater understanding is required on the fate of oxidants generated by cellular NADPH oxidases and on the identification of oxidant sensors in cell signaling.
Journal Article

Flow cytometric studies of oxidative product formation by neutrophils: a graded response to membrane stimulation.

TL;DR: The data indicate that the DCFH oxidation assay is quantitatively related to the oxidative metabolic burst of PMNL, and they strongly suggest that the reaction is mediated by H2O2 generated by the PMNL.
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