Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/158018
Author(s): Costa, S
Pires, J
Teixeira-Gomes, A
Title: Comet assay
Publisher: Elsevier
Issue Date: 2023
Abstract: The comet assay is a sensitive, inexpensive, fast, and easy-to-use method widely used in genotoxicity testing and biomonitoring studies. It can be applied using a few cells and on almost every cell type to assess a range of different DNA lesions, DNA repair activity and even DNA methylation levels, at the individual cell level. The principle is simple, during electrophoresis relaxed DNA strands move toward the anode away from the nucleoid core, appearing like a “comet”, hence the name of the assay. Incubation with lesion specific enzymes allows the detection of specific types of DNA lesions such as DNA oxidative damage, repair efficiency and methylation. The distribution of DNA within the comet relates to the extent of DNA damage present in the cell. © 2024 Elsevier Inc. All rights reserved.
DOI: 10.1016/B978-0-12-824315-2.01072-1
URI: https://hdl.handle.net/10216/158018
Source: Encyclopedia of Toxicology (Fourth Edition)
Related Information: info:eu-repo/grantAgreement/FCT/SFRH/BD/121802/2016/PT
info:eu-repo/grantAgreement/FCT/Concurso de Projetos de Investigação Científica e Desenvolvimento Tecnológico no Âmbito da Prevenção e Combate a Incêndios Florestais - 2018/PCIF/SSO/0017/2018/PT
Document Type: Capítulo ou Parte de Livro
Rights: restrictedAccess
Appears in Collections:ISPUP - Capítulo ou Parte de Livro

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