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The Comet Assay
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Book Synopsis Test No. 489: In Vivo Mammalian Alkaline Comet Assay by : OECD
Download or read book Test No. 489: In Vivo Mammalian Alkaline Comet Assay written by OECD and published by OECD Publishing. This book was released on 2014-09-26 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The in vivo alkaline single cell gel electrophoresis assay, also called alkaline Comet Assay is a method measuring DNA strand breaks in eukaryotic cells.
Book Synopsis Genotoxicity Assessment by : Alok Dhawan
Download or read book Genotoxicity Assessment written by Alok Dhawan and published by Humana Press. This book was released on 2013-07-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic toxicology is recognized by geneticists and researchers concerned with the genetic impact of man-made chemicals. In Genotoxicity Assessment: Methods and Protocols, expert researchers in the field provide comprehensive genetic toxicology protocols. These include in vitro and in vivo protocols on mutation assays, cytogenetic techniques, and primary DNA damage, assays in alternate to animal models, and updated ICH guidelines. Written in the highly successful Methods in Molecular Biology series format, the chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step and readily reproducible laboratory protocols, as well as key tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Genotoxicity Assessment: Methods and Protocols seeks to aid research students and scientists working in regulatory toxicology as well as biomedical, biochemical and pharmaceutical sciences.
Book Synopsis The Comet Assay in Toxicology by : Alok Dhawan
Download or read book The Comet Assay in Toxicology written by Alok Dhawan and published by Royal Society of Chemistry. This book was released on 2016-10-07 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns about the adverse effects of chemicals present in the environment have created a need for better systems to assess their potential consequences on human health. One potential solution is the versatile and state-of-the-art Comet assay. Simple, sensitive, rapid and visual, this modern toxicological method allows quantitative and qualitative assessment of DNA damage in single cells. This unique reference is devoted exclusively to the Comet assay and addresses, in-depth, the different protocols, statistical analyses and applications being used worldwide. It also includes the guidelines recommended by the working group on Comet assay. The book is aimed at students as well as scientists in the area of molecular epidemiology and genetic toxicology.
Book Synopsis Oxidative Stress Biomarkers and Antioxidant Protocols by : Donald Armstrong
Download or read book Oxidative Stress Biomarkers and Antioxidant Protocols written by Donald Armstrong and published by Springer Science & Business Media. This book was released on 2008-02-04 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first protocols book, Free Radical and Antioxidant Protocols (1) was published in late 1998. Sections were divided into three parts, covering selected biochemical techniques for measuring oxidative stress, antioxidant (AOX) activity, and combined applications. In choosing the 40 methods to be included in that book, I realized there were considerably more of equal value than that which we could have presented in a single volume. To produce a comprehensive resource, this book and a third are being compiled to expand coverage of the field. A summary of papers (2) published on this important subject emphasizes the continuing rapid growth in oxidative stress investigations relating to our understanding of biochemical reactions, their relevance to pathophysiological mechanisms, how disease may arise, and how therapeutic intervention may be achieved(3). Although there is some overlap between the categories, the ana- sis shown below illustrates where current studies are concentrated and are almost evenly distributed between free radicals and AOX. Over the last 4 yr, there has been a 55% increase in the number of papers published in the area.
Book Synopsis In Situ Detection of DNA Damage by : Vladimir V. Didenko
Download or read book In Situ Detection of DNA Damage written by Vladimir V. Didenko and published by Humana Press. This book was released on 2002-04-30 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detection and analysis of DNA damage is of critical importance in a variety of biological disciplines studying apoptosis, cell cycle and cell di- sion, carcinogenesis, tumor growth, embryogenesis and aging, neu- degenerative and heart diseases, anticancer drug development, environmental and radiobiological research, and others. Individual cells within the same tissue or in cell culture may vary in the extent of their DNA damage and, consequently, can display different re- tions to it. These differences between individual cells in the same cell popu- tion are detected using in situ approaches. In situ is a Latin term meaning “on site” or “in place.” It is used to denote the processes occurring or detected in their place of origin. In mole- lar and cell biology this usually refers to undisrupted mounted cells or tissue sections. In that meaning “in situ” is used as part of the terms “in situ PCR,” “in situ transcription,” “in situ hybridization,” “in situ end labeling,” and “in situ ligation.” Sometimes the “in situ” term is applied at the subcellular level to cells disrupted in the process of analysis, for example, in the detection of specific sequences in chromosomes using fluorescent in situ hybridization (FISH). Historically, the term was used primarily in methods dealing with nucleic acids.
Book Synopsis Reproductive Toxicology by : Jesús del Mazo
Download or read book Reproductive Toxicology written by Jesús del Mazo and published by Springer Science & Business Media. This book was released on 1998-10-31 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews the current practices of analyzing germ and interacting cell in vitro culture systems to investigate toxicological damage on germ cells and reproductive systems. Focuses on methodology rather than findings, interpretations, or clinical applications. Covers advances in improving human risk estimation, new approaches to analyzing the exposure of germ cells to toxicological agents in vitro, molecular and developmental approaches to assessing reproductive toxicity, and comparing the assessment of animal risk in vivo and in vitro. Among specific topics are assays to measure estrogen and androgen agonists and antagonists, flow cytometry to evaluate testicular toxicity, current and future contributions of transgenic mice in analyzing germline toxicology, and a new assay to assess aneuploidy in human-hamster embryos. The 25 papers are from an October 1997 workshop in Granada, Spain. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis DNA Repair Protocols by : Daryl S. Henderson
Download or read book DNA Repair Protocols written by Daryl S. Henderson and published by Springer Science & Business Media. This book was released on 2008-02-03 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of this book, published in 1999 and called DNA Repair Protocols: Eukaryotic Systems, brought together laboratory-based methods for studying DNA damage and repair in diverse eukaryotes: namely, two kinds of yeast, a nematode, a fruit fly, a toad, three different plants, and human and murine cells. This second edition of DNA Repair Protocols covers mammalian cells only and hence its new subtitle, Mammalian Systems. There are two reasons for this fresh emphasis, both of them pragmatic: to cater to the interests of what is now a largely mammalocentric DNA repair field, and to expedite editing and prod- tion of this volume. Although DNA Repair Protocols: Mammalian Systems is a smaller book than its predecessor, it actually contains a greater variety of methods. Fourteen of the book’s thirty-two chapters are entirely new and areas of redundancy present in the first edition have been eliminated here (for example, now just two chapters describe assays for nucleotide excision repair [NER], rather than seven). All eighteen returning chapters have been revised, many of them ext- sively. In order to maintain a coherent arrangement of topics, the four-part p- titioning seen in the first edition was dispensed with and chapters concerned with ionizing radiation damage and DNA strand breakage and repair were re- cated to near the front of the book. Finally, an abstract now heads each chapter.
Book Synopsis A Clinician's Guide to Sperm DNA and Chromatin Damage by : Armand Zini
Download or read book A Clinician's Guide to Sperm DNA and Chromatin Damage written by Armand Zini and published by Springer. This book was released on 2018-03-05 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive, up-to-date text, which brings together the key practical elements of the rapidly evolving field of sperm DNA and chromatin abnormalities, is divided thematically into five main sections. Part I discusses human sperm chromatin structure and nuclear architecture, while part II presents laboratory evaluation of sperm DNA damage, including SCSA, SCD, TUNEL and Comet assays, and cytochemical tests. Biological and clinical factors in the etiology of sperm DNA damage are discussed in part III, including oxidative stress, abortive apoptosis, cancer, and environmental and lifestyle factors. Part IV presents clinical studies on the utility of sperm DNA damage tests, both with natural and ART-assisted pregnancies, and debates the clinical utility of such tests. Finally, part V discusses current treatment options, such as antioxidant therapy, varicocelectomy, advanced sperm processing techniques and the use of testicular sperm. We are now beginning to better understand the unique organization of the sperm chromatin, as well as the nature and etiology of sperm DNA damage. Written and edited by worldwide experts in andrology, A Clinician's Guide to Sperm DNA and Chromatin Damage is an excellent resource for reproductive medicine and REI specialists, urologists, reproductive biologists and any professional working with the infertile male.
Book Synopsis Histochemistry of Single Molecules by : Carlo Pellicciari
Download or read book Histochemistry of Single Molecules written by Carlo Pellicciari and published by Springer Nature. This book was released on 2022-09-24 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume details histochemical techniques for the detection of specific molecules or metabolic processes, both at light and electron microscopy. Chapters are divided into seven sections covering Vital histochemistry, Carbohydrate histochemistry, Protein histochemistry, Lipid histochemistry, Nuclear histochemistry, Plant histochemistry and Histochemistry for Nanoscience. Written in the successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and notes on troubleshooting and avoiding known pitfalls. The volume also contains three discursive chapters on Histochemistry in advanced cytometry, Lectins and Detection of molecules in plant cell walls by fluorescence microscopy. Authoritative and cutting-edge, Histochemistry of Single Molecules: Methods and Protocols, Second Edition aims to be a useful practical guide for researchers to help further their study in this field.
Book Synopsis 30 years of the Comet Assay: an overview with some new insights by : Amaya Azqueta
Download or read book 30 years of the Comet Assay: an overview with some new insights written by Amaya Azqueta and published by Frontiers Media SA. This book was released on 2015-08-21 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: By means of this ‘Frontiers in Genetics’ research topic, we are celebrating 30 years of the Comet Assay. The first paper on this single-cell gel electrophoresis assay was published in 1984 by O. Ostling and K.J. Johanson (Biochem. Biophys. Res. Commun. Vol.123: 291-298). The comet assay is a versatile and sensitive method for measuring single - and double-strand breaks in DNA. By including lesion-specific enzymes in the assay, its range and sensitivity are greatly increased, but it is important to bear in mind that their specificity is not absolute. The comet assay (with and without inclusion of lesion-specific enzymes) is widely used as a biomarker assay in human population studies - primarily to measure DNA damage, but increasingly also to assess the capacity of cells for DNA repair. Ostling and Johanson (Biochem. Biophys. Res. Commun., 1984) were also the first to report experiments to measure DNA repair, by simply following the decrease of DNA damage over time after challenging cells with ionising radiation. However, this approach is time-consuming and laborious as it requires an extended period of cell culture and is therefore not ideal for biomonitoring studies, which typically require high-throughput processing of many samples. As an alternative approach, the in vitro comet-based repair assay was developed: a cell extract is incubated with a DNA substrate containing specific lesions, and DNA incisions accumulate. The in vitro comet-based repair assay has been modified and improved over the past decade: it was first devised to measure base excision repair of oxidised purines in lymphocytes (Collins et al., Mutagenesis, 2001), but has since been adapted for other lesions and thus other repair pathways, as well as being applied to tissue samples in addition to cell suspensions. Even after 30 years, the comet assay is still in a growth phase, with many new users each year. Many questions are repeatedly raised, which may seem to have self-evident answers, but clearly, it is necessary to reiterate them for the benefit of the new audience, and sometimes being forced to think again about old topics can shed new light. Different applications of the comet assay are discussed in this special issue, including: genotoxicity testing in different organisms, human biomonitoring, DNA repair studies, environmental biomonitoring and clinical studies. Furthermore, we consider and where possible answer questions, including the ones raised by Raymond Tice at the 8th International Comet Assay Workshop in Perugia (Italy 2009): What is the spectrum of DNA damage detected by the various versions of the comet assay?; What are the limitations associated with each application?; What should be done to standardize the assay for biomonitoring studies?; Can the comet assay be used to monitor changes in global methylation status?; What cell types are suitable for detecting genotoxic substances and their effects in vivo and in vitro?; Can the assay be fully automated?; and more. So this ‘Frontiers in Genetics’ research topic is written for the beginner as well as for the experienced users of the comet assay.
Book Synopsis Manual of Sperm Function Testing in Human Assisted Reproduction by : Ashok Agarwal
Download or read book Manual of Sperm Function Testing in Human Assisted Reproduction written by Ashok Agarwal and published by Cambridge University Press. This book was released on 2021-04-15 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on modern sperm function testing, this guide is essential in selecting sperm that will produce viable and healthy embryos.
Book Synopsis Biomarkers for Antioxidant Defense and Oxidative Damage by : Giancarlo Aldini
Download or read book Biomarkers for Antioxidant Defense and Oxidative Damage written by Giancarlo Aldini and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomarkers for Antioxidant Defense and Oxidative Damage: Principles and Practical Applications critically evaluates the basic concepts and methodologies of conventional biomarkers as well as current state-of-the-art assays for measuring antioxidant activity/oxidative stress and their practical applications. . Biomarkers for Antioxidant Defense and Oxidative Damage: Principles and Practical Applications will be of a great interest to scientists who are involved in basic research on oxidation, applied scientists evaluating the effects of nutraceuticals or pharmaceutical compounds on antioxidant activity/oxidative stress, and physicians who want to understand the degree of oxidative damage in patients with certain chronic diseases. Discovering sensitive and specific biomarkers for systemic oxidative damage is essential to understand the role of oxidative stress in human disease. Once these roles are clearly understood, we are able to identify novel drug and nutraceutical targets. This volume goes beyond conventional analytical methods of measuring overall antioxidant activity and provides insight to the discovery of biomarkers that reveal information on specific areas of oxidative stress. Contributed by an international list of experts, Biomarkers for Antioxidant Defense and Oxidative Damage: Principles and Practical Applications describes both conventional biomarkers and recent developments in this area. Special Features: Discusses conventional biomarkers as well as recent advances for measuring antioxidants and oxidative stress Biomarkers for lipid peroxidation: isoprostane, hydroxyloctadecaenoic acid, oxysterols, and reactive carbonyl species from lipid peroxidation Biomarkers for protein oxidation: carbonylation, tyrosine oxidation, ubiquitin-conjugation Biomarkers for DNA oxidative damage: comet assay, hydroxylated nucleotides, and exocylcic DNA adducts Recently developed biomarkers from cutting-edge technology
Book Synopsis Bioanalytical Tools in Water Quality Assessment by : Beate Escher
Download or read book Bioanalytical Tools in Water Quality Assessment written by Beate Escher and published by IWA Publishing. This book was released on 2011-12-15 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part of Water Quality Set - Buy all four books and save over 30% on buying separately! Bioanalytical Tools in Water Quality Assessment reviews the application of bioanalytical tools to the assessment of water quality including surveillance monitoring. The types of water included range from wastewater to drinking water, including recycled water, as well as treatment processes and advanced water treatment. Bioanalytical Tools in Water Quality Assessment not only demonstrates applications but also fills in the background knowledge in toxicology/ecotoxicology needed to appreciate these applications. Each chapter summarises fundamental material in a targeted way so that information can be applied to better understand the use of bioanalytical tools in water quality assessment. Bioanalytical tools in Water Quality Assessment can be used by lecturers teaching academic and professional courses and also by risk assessors, regulators, experts, consultants, researchers and managers working in the water sector. It can also be a reference manual for environmental engineers, analytical chemists, and toxicologists. Authors: Beate Escher, National Research Centre for Environmental Toxicology (EnTox), The University of Queensland, Australia, Frederic Leusch, Smart Water Research Facility (G51), Griffith University Gold Coast Campus, Australia. With contributions by Heather Chapman and Anita Poulsen
Book Synopsis Genotoxicity by : Marcelo Larramendy
Download or read book Genotoxicity written by Marcelo Larramendy and published by BoD – Books on Demand. This book was released on 2018-07-11 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is designed to provide an overview of the different genotoxicants and their effects on living organisms, including humans. The contributions made by the specialists in this field of research are gratefully acknowledged. We hope that the information presented in this book will meet the expectations and needs of all those interested in the different aspects of the genotoxicity field. The publication of this book is of great importance to those scientists, pharmacologists, physicians and veterinarians, as well as engineers, teachers, graduate students and administrators of environmental programmes, who make use of these investigations to understand both the basic and applied genotoxic aspects of known and new xenobiotics, and to guide them in their future investigations.
Book Synopsis Oxidative Stress in Aquatic Ecosystems by : Doris Abele
Download or read book Oxidative Stress in Aquatic Ecosystems written by Doris Abele and published by John Wiley & Sons. This book was released on 2011-11-03 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reactive oxygen species (ROS) are increasingly appreciated as down-stream effectors of cellular damage and dysfunction under natural and anthropogenic stress scenarios in aquatic systems. This comprehensive volume describes oxidative stress phenomena in different climatic zones and groups of organisms, taking into account specific habitat conditions and how they affect susceptibility to ROS damage. A comprehensive and detailed methods section is included which supplies complete protocols for analyzing ROS production, oxidative damage, and antioxidant systems. Methods are also evaluated with respect to applicability and constraints for different types of research. The authors are all internationally recognized experts in particular fields of oxidative stress research. This comprehensive reference volume is essential for students, researchers, and technicians in the field of ROS research, and also contains information useful for veterinarians, environmental health professionals, and decision makers.
Book Synopsis Immunohistochemistry and Immunocytochemistry by : Luis Del Valle
Download or read book Immunohistochemistry and Immunocytochemistry written by Luis Del Valle and published by Humana. This book was released on 2022-12-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive reference guide for researchers to study the applications of labeled antibodies. Chapters guide reader through the theory and practice of immunohistochemistry, immunocytochemistry and immunofluorescence techniques. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and useful tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Immunohistochemistry and Immunofluorescence: Methods and Protocols aims to be a useful practical guide to scientists to help further their study in this field
Book Synopsis Nanoparticles in Biology and Medicine by : Mikhail Soloviev
Download or read book Nanoparticles in Biology and Medicine written by Mikhail Soloviev and published by Methods in Molecular Biology. This book was released on 2012-07-13 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: The modern fascination with micro- and nano-sized materials can actually be traced back further to the 1960s and ‘70s when the first few reported attempts were made to use nanoparticles for controlled drug delivery. In Nanoparticles in Biology and Medicine: Methods and Protocols, experts in the field present a wide range of methods for synthesis, surface modification, characterization, and application of nano-sized materials (nanoparticles) in life science and medical fields, mostly for drug delivery. The methods presented cover all stages of nanoparticle manufacturing, modification, analysis, and applications. Written in the highly successful Methods in Molecular BiologyTM series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Comprehensive and cutting-edge, Nanoparticles in Biology and Medicine: Methods and Protocols will help the beginner become familiar with this fascinating field and will provide scientists at all levels of expertise with easy-to-follow practical advice needed to make, modify, and analyze nanoparticles of their choice and to use them in a wide range of biomedical and pharmaceutical applications, including functional protein studies, drug delivery, immunochemistry, imaging, and many others.
