The Role of DNA Damage and Repair in Cell Aging

The Role of DNA Damage and Repair in Cell Aging
Author: B.A. Gilchrest
Publisher: Elsevier
Total Pages: 270
Release: 2001-03-09
Genre: Science
ISBN: 9780444504944
GET BOOK

Download The Role of DNA Damage and Repair in Cell Aging Book in PDF, Epub and Kindle

Aging occurs at the level of individual cells, a complex interplay between intrinsic "programming" and exogenous "wear and tear", with genetically-determined cellular capacity to repair environmentally-induced DNA damage playing a central role in the rate of aging and its specific manifestations. In 12 chapters, "The Role of DNA Damage and Repair in Cell Aging" provides an intellectual framework for aging of mitotic and post-mitotic cells, describes a variety of model systems for further studies, and reviews current concepts of DNA responses and their relationship to the phenomenon of aging. As part of a series entitled "Advances in Cell Aging and Gerontology," this volume also summarizes seminal recent discoveries such as the molecular basis for Werner syndrome (a mutant DNA helicase), the complementary roles of telomere shortening and telomerase activity in cell senescence versus immortalization, the role of apoptosis in the homeostasis of aging tissue, and the existence of an inducible SOS-like response in mammalian cells that minimizes DNA damage from repeatedly encountered injurious environmental agents. Insights into the relationship between cellular aging and age-associated diseases, particularly malignancies, are also provided in several chapters. This book is an excellent single source of information for anyone interested in DNA repair, mechanisms of aging, or certainly their intersection. Students will gain a general appreciation of these fields, but even the most senior investigators will benefit from the detailed coverage of rapidly advancing areas.

Aging, Sex, and DNA Repair

Aging, Sex, and DNA Repair
Author: Bozzano G Luisa
Publisher: Academic Press
Total Pages: 395
Release: 2012-12-02
Genre: Science
ISBN: 0323138772
GET BOOK

Download Aging, Sex, and DNA Repair Book in PDF, Epub and Kindle

Why organisms age and why sexual reproduction exists are major unsolved problems in biology. This book provides an integrated explanation of aging and sex based on current knowledge of DNA damage and repair. Discusses the universality of the problem of DNA damage Describes aging as a consequence of accumulated DNA damage Considers meiosis as an adaptation for DNA repair Discusses mating in eukaryotes as an adaptation for masking mutation

DNA Damage and Repair

DNA Damage and Repair
Author: Jac A. Nickoloff
Publisher: Springer Science & Business Media
Total Pages: 1050
Release: 1998-08-12
Genre: Science
ISBN: 1592594557
GET BOOK

Download DNA Damage and Repair Book in PDF, Epub and Kindle

Cutting edge reviews by leading researchers illuminate key aspects of DNA repair in mammalian systems and its relationship to human genetic disease and cancer. Major topics include UV and X-Ray repair, repair of chemical damage, recombinational repair, mismatch repair, transcription-repair coupling, and the role of DNA repair in disease prevention. Extensive up-to-date references and rigorous peer-review of each chapter make this volume definitive and bring it to the active frontiers of research.

Biological Aging

Biological Aging
Author: Trygve O. Tollefsbol
Publisher: Springer Science & Business Media
Total Pages: 844
Release: 2008-02-03
Genre: Science
ISBN: 1597453617
GET BOOK

Download Biological Aging Book in PDF, Epub and Kindle

This book investigates the various processes that are affected by the age of an organism. Several new tools for the analysis of biological aging have been introduced recently, and this volume provides methods and protocols for these new techniques in addition to its coverage of established procedures. Researchers seeking new technology and techniques will find this volume of tremendous benefit as they move towards new directions.

DNA Repair

DNA Repair
Author: Allison E. Thomas
Publisher: Nova Science Publishers
Total Pages: 0
Release: 2010
Genre: DNA damage
ISBN: 9781616689148
GET BOOK

Download DNA Repair Book in PDF, Epub and Kindle

The preservation of expected life span and longevity, as well as the assurance of life succession among all species requires the integrity and faithful transcription of DNA. A dedicated machinery of DNA repair factors is responsible for reversing DNA damage across the genome. Efficient response to various effectors of DNA damage is also dependent on a complex network of sensors and mediators of stress signals which are upstream of DNA repair activation and together constitute components of the DNA damage response (DDR). This book reviews research on cell cycle checkpoints as essential mechanisms for safeguarding genome stability; nucleotide excision repair (NER) which recognises and removes bulky DNA damage that leads to DNA double-helix distortion and others.

How and why We Age

How and why We Age
Author: Leonard Hayflick
Publisher:
Total Pages: 0
Release: 1996
Genre: Aging
ISBN: 9780345401557
GET BOOK

Download How and why We Age Book in PDF, Epub and Kindle

"How long can humans live? Is immortality possible? Just what is the aging process? The aging and inevitable death of the human body have inspired more myths and outrageous quackery than anything else subject to scientific inquiry. . . . Now comes a most fascinating book, insightful and scholarly, to provide what answers have emerged so far." --San Francisco Chronicle Here, at last, preeminent cell biologist Leonard Hayflick presents the truth about human aging. Based on more than thirty years of pioneering research in the field, How and Why We Age explores not only how our major biological systems change as we grow older, but also examines the intangible alterations in our modes of thinking and feeling, our moods and sexual desires, our personality traits and our memories. With the immediacy of the latest scientific discoveries, Dr. Hayflick explains how aging affects every part of the body, and dispels many of the most persistent aging myths, to show that: * Hearts do not naturally get weaker with age. * Regular exercise and a low-fat diet won't slow aging. * Curing cancer would only add two years to the average sixty-five-year-old American life. Curing heart disease, however would add fourteen years. * Only five percent of people over the age of sixty-five are in nursing homes * No human has lived--or probably can live--past 120 years. Gracefully written, clearly organized, and packed with essential facts and statistics, How and Why We Age is a landmark study of the aging process for readers of all ages. "Written in clear, nontechnical language, it is an excellent introduction to the scientific and demographic literature on this multifacetedsubject." --Nature

Advances in DNA Damage and Repair

Advances in DNA Damage and Repair
Author: Miral Dizdaroglu
Publisher: Springer Science & Business Media
Total Pages: 528
Release: 1999-02-28
Genre: Medical
ISBN: 9780306460425
GET BOOK

Download Advances in DNA Damage and Repair Book in PDF, Epub and Kindle

In recent years the field of DNA repair has flourished due to new findings on DNA repair mechanisms and the molecular basis of cancer. This volume covers the most recent developments in this research field and contains contributions from scientists working in various fields.

Aging, Carcinogenesis, and Radiation Biology

Aging, Carcinogenesis, and Radiation Biology
Author: Kendric Smith
Publisher: Springer Science & Business Media
Total Pages: 564
Release: 2013-03-09
Genre: Medical
ISBN: 1475716621
GET BOOK

Download Aging, Carcinogenesis, and Radiation Biology Book in PDF, Epub and Kindle

The covalent attachment to deoxyribonucleic acid in vivo of a large number of different types of chemical compounds (both normal cellular constituents such as proteins and amino acids, and also exogenous compounds such as drugs, carcinogens, etc. ) have been shown to exert profound effects upon cells. Four research activi ties, formerly considered to be totally independent, relate to this problem of nucleic acid adducts--(1) normal covalent attachment of DNA to membranes, protein linkers in chromosomes, etc. ; (2) the roles of radiation and chemical enhancement of DNA adduct formation in cell killing and mutagenesis. (A related field is the use of known cross-linking reactions to gain information on structural associations in macromolecular complexes. ); (3) the relevance of DNA adducts to chemical and radiation carcinogenesis; (4) the rele vance of DNA adducts to the cross-linking theory of cellular aging. (1) There are numerous examples of normal linkages between DNA and protein, e. g. , DNA-membrane attachment sites, protein linkers in chromosomes, amino acids covalently linked to DNA as a function of growth conditions, and gene regulation by non-covalently bound proteins. A summary of data on natural adducts to DNA thus serves to introduce the subject of the radiation and chemical enhancement of DNA adduct formation. (2) In the past, radiation biology has been concerned mainly with trying to understand the radiation chemistry of purified DNA, and the biological effects and repair of these radiation-induced alterations when produced in cellular DNA.

DNA Damage and Repair

DNA Damage and Repair
Author: A. Castellani
Publisher: Springer Science & Business Media
Total Pages: 377
Release: 2013-03-09
Genre: Science
ISBN: 1475750161
GET BOOK

Download DNA Damage and Repair Book in PDF, Epub and Kindle

The First International Congress on DNA Damage and Repair was held in Rome, Italy, July 12-17, 1987. It was organized by the Italian Com mission for Nuclear Alternative Energy Sources. The subject of DNA damage and repair involves almost all the fields ofbidogical sciences. Some of the more prominent ones include carcino genesis, photobiology, radiation biology, aging, enzymology, genetics, and molecular biology. These individual fields have their own interna tional meetings and although the meetings often have sessions devoted to DNA repair, they do not bring together a wide diversity of international workers in the field to exchange ideas. The purpose of the Congress was to facilitate such an exchange among scientists representing many fields of endeavor and many countries. The 37 manuscripts in this volume, presented by the invited spea kers during the four and half days of the Congress, encompass the field of DNA damage and repair. They cover biological systems ranging from mo lecules to humans and deal with damages and repair after treatment of cells with various types of radiations, chemicals, and exogenous and en dogenous oxidative damages. The Congress and its Proceedings are dedicated to two international leaders in the field of DNA damage and repair, Alexander Hollaender of the United States and Adriano Buzzati Traverso of Italy. Hollaender, who died in December 1986, was one of the first investigators to recognize the damage to DNA was important in cell killing and mutagenesis. His early work indicated that cells could recover from radiation injury.

The Role of DNA Repair in Cellular Aging Process

The Role of DNA Repair in Cellular Aging Process
Author: Rosa Bermudez
Publisher:
Total Pages: 0
Release: 2018
Genre: Science
ISBN:
GET BOOK

Download The Role of DNA Repair in Cellular Aging Process Book in PDF, Epub and Kindle

Aging is defined as the time-dependent decline of functional properties. One common denominator of aging is mitochondrial dysfunction and accumulation of genetic damage throughout life. In fact, the imperfect maintenance of nuclear and mitochondrial DNA likely represents a critical contributor of aging. Each day, the integrity and stability of DNA are challenged by exogenous physical, chemical, or biological agents, as well as by endogenous processes, including DNA replication mistakes, spontaneous hydrolytic reactions, and reactive oxygen species. In this way, DNA repair systems have evolved a complex network that is collectively able of dealing with most of the damages inflicted. However, their efficiency may decrease with age and, therefore, influence the rate of aging. Thus, the purpose of this work is to summarize the recent knowledge in cellular aging process and its link with DNA repair systems, with a particular emphasis on the molecular mechanisms associated.