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The Human Aging & the Telomere

The Human Aging & the Telomere PDF Author: Paul F. Kisak
Publisher: Createspace Independent Publishing Platform
ISBN: 9781548457631
Category :
Languages : en
Pages : 236
Book Description
There is a large body of evidence to support the fact that the health of the telomere (indicated by its length) is a determinant in the lifespan of humans. For vertebrates, the sequence of nucleotides in telomeres is TTAGGG, with the complementary DNA strand being AATCCC, with a single-stranded TTAGGG overhang. This sequence of TTAGGG is repeated approximately 2,500 times in humans. In humans, average telomere length declines from about 11 kilobases at birth to less than 4 kilobases in old age, with average rate of decline being greater in men than in women. During chromosome replication, the enzymes that duplicate DNA cannot continue their duplication all the way to the end of a chromosome, so in each duplication the end of the chromosome is shortened (this is because the synthesis of Okazaki fragments requires RNA primers attaching ahead on the lagging strand). The telomeres are disposable buffers at the ends of chromosomes which are truncated during cell division; their presence protects the genes before them on the chromosome from being truncated instead. The telomeres themselves are protected by a complex of shelterin proteins, as well as by the RNA that telomeric DNA encodes (TERRA). Over time, due to each cell division, the telomere ends become shorter. This shortening is believed to play a vital role in the accuracy of the replication of the gene. The telomeres are replenished by an enzyme, telomerase reverse transcriptase. Therefore the shortening of the telomere results in transcription mistakes in the genetic replication. This book gives an overview of the process the telomere plays in human-aging and genetic replication. This book is designed to be a state of the art, superb academic reference work and provide an overview of the topic and give the reader a structured knowledge to familiarize yourself with the topic at the most affordable price possible. The accuracy and knowledge is of an international viewpoint as the edited articles represent the inputs of many knowledgeable individuals and some of the most current knowledge on the topic, based on the date of publication.

The Human Aging & the Telomere

The Human Aging & the Telomere PDF Author: Paul F. Kisak
Publisher: Createspace Independent Publishing Platform
ISBN: 9781548457631
Category :
Languages : en
Pages : 236
Book Description
There is a large body of evidence to support the fact that the health of the telomere (indicated by its length) is a determinant in the lifespan of humans. For vertebrates, the sequence of nucleotides in telomeres is TTAGGG, with the complementary DNA strand being AATCCC, with a single-stranded TTAGGG overhang. This sequence of TTAGGG is repeated approximately 2,500 times in humans. In humans, average telomere length declines from about 11 kilobases at birth to less than 4 kilobases in old age, with average rate of decline being greater in men than in women. During chromosome replication, the enzymes that duplicate DNA cannot continue their duplication all the way to the end of a chromosome, so in each duplication the end of the chromosome is shortened (this is because the synthesis of Okazaki fragments requires RNA primers attaching ahead on the lagging strand). The telomeres are disposable buffers at the ends of chromosomes which are truncated during cell division; their presence protects the genes before them on the chromosome from being truncated instead. The telomeres themselves are protected by a complex of shelterin proteins, as well as by the RNA that telomeric DNA encodes (TERRA). Over time, due to each cell division, the telomere ends become shorter. This shortening is believed to play a vital role in the accuracy of the replication of the gene. The telomeres are replenished by an enzyme, telomerase reverse transcriptase. Therefore the shortening of the telomere results in transcription mistakes in the genetic replication. This book gives an overview of the process the telomere plays in human-aging and genetic replication. This book is designed to be a state of the art, superb academic reference work and provide an overview of the topic and give the reader a structured knowledge to familiarize yourself with the topic at the most affordable price possible. The accuracy and knowledge is of an international viewpoint as the edited articles represent the inputs of many knowledgeable individuals and some of the most current knowledge on the topic, based on the date of publication.

The Telomerase Revolution

The Telomerase Revolution PDF Author: Michael Fossel
Publisher: Atlantic Books Ltd
ISBN: 1782399119
Category : Medical
Languages : en
Pages : 300
Book Description
Science is on the cusp of a revolutionary breakthrough. We now understand more about ageing - and how to prevent and reverse it - than ever before. In The Telomerase Revolution, Dr Michael Fossel, who has been at the cutting edge of ageing research for decades, describes how telomerase will soon be used as a powerful therapeutic tool, with the potential to intervene in age-related disease, dramatically extend life spans and even reverse human ageing. Telomerase-based treatments are already on offer, and have shown early promise, but much more potent treatments will become available over the next decade. This is the definitive work on the latest science of human ageing, covering both the theory and the clinical implications, taking readers to the forefront of one of the most remarkable advances in human medicine.

The Telomerase Revolution

The Telomerase Revolution PDF Author: Michael Fossel
Publisher: BenBella Books
ISBN: 194163169X
Category : Medical
Languages : en
Pages : 0
Book Description
One of Wall Street Journal's "Best Books for Science Lovers" in 2015 Science is on the cusp of a revolutionary breakthrough. We now understand more about aging—and how to prevent and reverse it—than ever before. In recent years, our understanding of the nature of aging has grown exponentially, and dramatic life extension—even age reversal—has moved from science fiction to real possibility. Dr. Michael Fossel has been in the forefront of aging research for decades and is the author of the definitive textbook on human aging. In The Telomerase Revolution, he takes us on a detailed but highly accessible scientific journey, providing startling insights into the nature of human aging. Twenty years ago, there was still considerable debate of the nature of human aging, with a variety of competing theories in play. But scientific consensus is forming around the telomere theory of aging. The essence of this theory is that human aging is the result of cellular aging. Every time a cell reproduces, its telomeres (the tips of the chromosomes) shorten. With every shortening of the telomeres, the cell's ability to repair its molecules decreases. It ages. Human aging is the result of the aging of the body's trillions of cells. But some of our cells don't age. Sex cells and stem cells can reproduce indefinitely, without aging, because they create telomerase. Telomerase re-lengthens the telomeres, keeping these cells young. The Telomerase Revolution describes how telomerase will soon be used as a powerful therapeutic tool, with the potential to dramatically extend life spans and even reverse human aging. Telomerase-based treatments are already available, and have shown early promise, but much more potent treatments will become available over the next decade. The Telomerase Revolution is the definitive work on the latest science on human aging, covering both the theory and the clinical implications. It takes the reader to the forefront of the upcoming revolution in human medicine.

Handbook of Models for Human Aging

Handbook of Models for Human Aging PDF Author: P. Michael Conn
Publisher: Elsevier
ISBN: 9780080460062
Category : Medical
Languages : en
Pages : 1075
Book Description
The Handbook of Models for Human Aging is designed as the only comprehensive work available that covers the diversity of aging models currently available. For each animal model, it presents key aspects of biology, nutrition, factors affecting life span, methods of age determination, use in research, and disadvantages/advantes of use. Chapters on comparative models take a broad sweep of age-related diseases, from Alzheimer's to joint disease, cataracts, cancer, and obesity. In addition, there is an historical overview and discussion of model availability, key methods, and ethical issues. Utilizes a multidisciplinary approach Shows tricks and approaches not available in primary publications First volume of its kind to combine both methods of study for human aging and animal models Over 200 illustrations

Molecular, Cellular, and Metabolic Fundamentals of Human Aging

Molecular, Cellular, and Metabolic Fundamentals of Human Aging PDF Author: Evandro Fei Fang
Publisher: Academic Press
ISBN: 032391618X
Category : Science
Languages : en
Pages : 262
Book Description
Molecular, Cellular, and Metabolic Fundamentals of Human Aging provides researchers with an overview of the main aging mechanisms and physiology and how they can lead to age-related diseases and conditions. Topics covered include DNA damage and how ineffective repair can lead to cell and tissue aging and decreased functionality, loss of proteostasis, changes to feeding and fasting pathways, mitochondrial dysfunction, the impact of decreased ability of autophagosomes and autophagosomes, cellular senescence, changes to communication molecules, and the impact of stem cell exhaustion. The book also considers the impact of aging within the immune system, the relationship between aging and diseases such as cancers and neurodegenerative conditions, and provides an overview on the dialogue surrounding the topic of aging beyond basic biology. Covers the basic hallmarks of aging and their relevance in various diseases, such as cancer and Alzheimer’s disease Discusses the impact of genetic damage and how changes in genetic expression patterns affect the process of aging Highlights recurring themes and key principles shared across the hallmarks of aging Considers NAD+ depletion and defective autophagy as emerging aspects that impact human aging

The Mystery of Human Aging

The Mystery of Human Aging PDF Author: Bjoern Schumacher
Publisher: Algora Publishing
ISBN: 1628942843
Category : Medical
Languages : en
Pages : 200
Book Description


Telomeres and Telomerase in Aging, Disease, and Cancer

Telomeres and Telomerase in Aging, Disease, and Cancer PDF Author: K. Lenhard Rudolph
Publisher: Springer Science & Business Media
ISBN: 354073709X
Category : Medical
Languages : en
Pages : 330
Book Description
Telomere shortening represents one of the basic aspects of ageing and telomere dysfunction could contribute to the accumulation of DNA damage during ageing. This book summarizes evidence and data indicating that telomere dysfunction influences human ageing, diseases and cancer. The book describes our current knowledge on checkpoints that limit cellular lifespan and survival in response to telomere dysfunction. There is special focus on adult stem cells.

The Future of Aging

The Future of Aging PDF Author:
Publisher: Springer Science & Business Media
ISBN: 9048139988
Category : Medical
Languages : en
Pages : 866
Book Description
Just as the health costs of aging threaten to bankrupt developed countries, this book makes the scientific case that a biological "bailout" could be on the way, and that human aging can be different in the future than it is today. Here 40 authors argue how our improving understanding of the biology of aging and selected technologies should enable the successful use of many different and complementary methods for ameliorating aging, and why such interventions are appropriate based on our current historical, anthropological, philosophical, ethical, evolutionary, and biological context. Challenging concepts are presented together with in-depth reviews and paradigm-breaking proposals that collectively illustrate the potential for changing aging as never before. The proposals extend from today to a future many decades from now in which the control of aging may become effectively complete. Examples include sirtuin-modulating pills, new concepts for attacking cardiovascular disease and cancer, mitochondrial rejuvenation, stem cell therapies and regeneration, tissue reconstruction, telomere maintenance, prevention of immunosenescence, extracellular rejuvenation, artificial DNA repair, and full deployment of nanotechnology. The Future of Aging will make you think about aging differently and is a challenge to all of us to open our eyes to the future therapeutic potential of biogerontology.

Human Aging

Human Aging PDF Author: Paul W. Foos
Publisher: Routledge
ISBN: 1317351088
Category : Psychology
Languages : en
Pages : 508
Book Description
This text offers a readable and friendly presentation of the important methods, findings, and theories of human aging, while actively involving the reader in meaningful exercises and critical thinking. Students are repeatedly challenged to apply information in the text to the older adults in their own lives. Specifically, suggestions for enhancing the lives of their older relatives are offered and encouraged. These include guidelines for discussions they might have regarding social, emotional, and environmental changes as well encouraging intellectual and social interaction. In this Edition: Emphasis on the science of the study of aging and why questions in aging are difficult to answer, how social scientists attempt to handle such difficulties, and the successes and failures social scientists have had thus far in answering those questions. The text also demonstrates how current research findings are now being applied in the real world and/or how they might be applied in the future. Cross-cultural comparisons and ethnic group comparisons are included wherever possible. Each chapter begins with "Senior View," which introduces students to a real person and gives them a chance to hear what older adults think and say about important issues related to the chapter and a chance to compare those opinions to the research findings. Each chapter ends with "Making Choices," emphasizing the important behavioral, emotional, and social choices that students can make now to prolong a healthy, happy life. "Chapter Projects" offer the opportunity for active learning, as students investigate for themselves an issue related to the chapter. Instructors can expand these projects for students who want to learn more, or for independent study. "Focus on Aging" boxes compliment the material in the text, providing additional insight and examples, and encouraging critical thinking. Every chapter includes discussion questions, study questions, chapter exercises, and related online resources.

Reversing Human Aging

Reversing Human Aging PDF Author: Michael Fossel
Publisher: Quill
ISBN: 9780688153847
Category : Health & Fitness
Languages : en
Pages : 160
Book Description
Explains the effects of aging on the human body and describes groundbreaking medical advances in age reversal, citing their potential cures for cancer, heart disease, Alzheimer's, and stroke