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Related Concept Videos

Redox Reactions01:24

Redox Reactions

Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
Redox Reactions01:27

Redox Reactions

Redox reactions are vital biochemical processes that underpin energy metabolism in cells. These reactions involve the transfer of electrons between molecules, occurring in tandem as oxidation and reduction. Oxidation refers to the loss of electrons, while reduction denotes their gain. This coupling ensures the seamless flow of electrons through metabolic pathways. For example, in bacterial metabolism, glucose undergoes oxidation to carbon dioxide, while oxygen is simultaneously reduced to...
Redox Equilibria: Overview01:23

Redox Equilibria: Overview

A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
Redox Titration: Overview01:21

Redox Titration: Overview

Redox titration is a chemical analysis technique used to determine the concentration of an unknown substance by measuring the electron transfer in a redox (reduction-oxidation) reaction. The process involves gradually adding a titrant with a known concentration of an oxidizing or reducing agent, to the analyte, the solution with an unknown concentration, until reaching the endpoint, which indicates the completion of the reaction between the two substances. Ensuring the analyte is in a single...
Redox Titration: Other Oxidizing and Reducing Agents01:26

Redox Titration: Other Oxidizing and Reducing Agents

Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...
Proteomics01:33

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...

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Monitoring On-Target Signaling Responses in Larval Zebrafish - Z-REX Unmasks Precise Mechanisms of Electrophilic Drugs and Metabolites
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Redox proteomics and drug development.

Angelo D'Alessandro1, Sara Rinalducci, Lello Zolla

  • 1Department of Environmental Sciences, University of Tuscia, Largo dell'Università, snc, 01100 Viterbo, Italy.

Journal of Proteomics
|January 19, 2011
PubMed
Summary
This summary is machine-generated.

Redox proteomics investigates how oxidative stress (OS) impacts diseases like Alzheimer's and cancer. Understanding reactive oxygen and nitrogen species is crucial for developing new therapies targeting redox homeostasis imbalances.

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Cellular Redox Profiling Using High-content Microscopy
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Cellular Redox Profiling Using High-content Microscopy

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Proteomics

Background:

  • Alterations in redox homeostasis are fundamental to numerous pathophysiological processes.
  • Oxidative stress (OS) is a common factor in neurodegenerative diseases, cardiovascular conditions, aging, and cancer.
  • Reactive oxygen species (ROS) and reactive nitrogen species (RNS) play key roles in these processes.

Purpose of the Study:

  • To review the mechanisms of ROS and RNS production.
  • To highlight the association of these chemical phenomena with pathological conditions.
  • To emphasize the importance of redox proteomics in understanding and treating diseases linked to altered redox homeostasis.

Main Methods:

  • Literature review focusing on redox proteomics.
  • Analysis of chemical mechanisms of ROS and RNS production.
  • Examination of pathological conditions associated with oxidative stress.

Main Results:

  • Oxidative stress is implicated across a spectrum of diseases, including Alzheimer's, Parkinson's, Huntington's disease, aging, and cancer.
  • Redox proteomics offers insights into the molecular mechanisms underlying these conditions.
  • Understanding ROS/RNS production is vital for identifying disease biomarkers and therapeutic targets.

Conclusions:

  • Further investment in redox proteomics is essential for advancing human health.
  • Redox proteomics will be pivotal in discovering and validating new therapeutic targets.
  • This field is critical for drug design, testing, and understanding treatment effects on OS-triggered cellular alterations.