Chimeras, Hybrids, and Interspecies Research

Chimeras, Hybrids, and Interspecies Research PDF Author: Andrea L. Bonnicksen
Publisher: Georgetown University Press
ISBN: 1589017196
Category : Medical
Languages : en
Pages : 182

Get Book Here

Book Description
In his 2006 State of the Union speech, President George W. Bush asked the U.S. Congress to prohibit the "most egregious abuses of medical research," such as the "creation of animal–human hybrids." The president's message echoed that of a 2004 report by the President's Council on Bioethics, which recommended that hybrid human–animal embryos be banned by Congress. Discussions of early interspecies research, in which cells or DNA are interchanged between humans and nonhumans at early stages of development, can often devolve into sweeping statements, colorful imagery, and confusing policy. Although today's policy advisory groups are becoming more informed, debate is still limited by the interchangeable use of terms such as chimeras and hybrids, a tendency to treat all forms of interspecies alike, the failure to distinguish between laboratory research and procreation, and not enough serious policy justification. Andrea Bonnicksen seeks to understand reasons behind support of and disdain for interspecies research in such areas as chimerism, hybridization, interspecies nuclear transfer, cross-species embryo transfer, and transgenics. She highlights two claims critics make against early interspecies studies: that the research will violate human dignity and that it can lead to procreation. Are these claims sufficient to justify restrictive policy? Bonnicksen carefully illustrates the challenges of making policy for sensitive and often sensationalized research—research that touches deep-seated values and that probes the boundary between human and nonhuman animals.

CHIMBRIDS - Chimeras and Hybrids in Comparative European and International Research

CHIMBRIDS - Chimeras and Hybrids in Comparative European and International Research PDF Author: Jochen Taupitz
Publisher: Springer Science & Business Media
ISBN: 3540938699
Category : Law
Languages : en
Pages : 1032

Get Book Here

Book Description
National, European and international concepts and strategies concerning the legal and ethical framework of chimera and hybrid research are still largely missing, even though they are absolutely necessary in order to use the potential of chimera and hybrid research effectively and efficiently for the benefit of science and society. The outcome of the CHIMBRIDS-Project successfully sheds light on the chances and risks of this research and provides legal solutions to existing problems in order to help decision-makers fulfil their tasks in an informed and efficient manner. This comprehensive volume details the complete results, contributed by 40 scholars from 10 member states of the European Union, Canada, China, Israel, Japan, Switzerland and the US, with descriptive reports of the legal situation in specific countries and in-depth analysis of all scientific, medical, ethical and legal implications of chimera and hybrid research.

Chimera Research

Chimera Research PDF Author: Insoo Hyun
Publisher: Humana
ISBN: 9781493995264
Category : Science
Languages : en
Pages : 234

Get Book Here

Book Description
This volume addresses challenging new questions surrounding stem cell-based chimera research. This book is organized into three parts: Part One provides readers with a summary of different human donor cell types. The chapters in this section discuss ways to evaluate new types of pluripotent stem cells; the derivation of naïve and primed pluripotent stem cells from mouse preimplantation embryos; and the ethical and regulatory complexities of informed consent for the procurement of somatic cells. Part Two discusses methods for generating chimeras. The chapters here look at chick models and human-chick organizer grafts; generating human-pig interspecies chimeras; and techniques for transplanting mouse neural stem cells into a mouse disease model for stroke. Part Three concludes the book with a look at ongoing ethical controversies and new scientific directions. Chapters in this part cover the ethics of crossing the xenobarrier; animal welfare; experimentation with spermatogonial stem cells; and cautious approaches to human-monkey chimera studies to further understand complex human brain disorders. 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 tips on troubleshooting and avoiding known pitfalls. Cutting-edge and thorough, Chimera Research: Methods and Protocols is a valuable resource for scientists interesting in using chimeras as a research tool while also taking into consideration their complex ethical scopes.

Is this Cell a Human Being?

Is this Cell a Human Being? PDF Author: Antoine Suarez
Publisher: Springer Science & Business Media
ISBN: 3642207723
Category : Medical
Languages : en
Pages : 214

Get Book Here

Book Description
The central question of this book is whether or not particular cell entities of human origin ought to be considered human beings. The answer is crucial for making moral decisions for or against research and experimentation. Experts in the field discuss the production of embryonic-like pluripotent stem cells by altered nuclear transfer, parthenogenesis and reprogramming of adult somatic cells. They thoroughly analyse the biological and moral status of different cell entities, such as human stem cells, embryos and human-animal hybrid embryos, and make a decisive step towards establishing final criteria for what constitutes a human being. The topic is challenging in nature and of broad interest to all those concerned with current bioethical thought on embryonic human life and its implications for society.

Guidelines for the Care and Use of Mammals in Neuroscience and Behavioral Research

Guidelines for the Care and Use of Mammals in Neuroscience and Behavioral Research PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 030916785X
Category : Science
Languages : en
Pages : 223

Get Book Here

Book Description
Expanding on the National Research Council's Guide for the Care and Use of Laboratory Animals, this book deals specifically with mammals in neuroscience and behavioral research laboratories. It offers flexible guidelines for the care of these animals, and guidance on adapting these guidelines to various situations without hindering the research process. Guidelines for the Care and Use of Mammals in Neuroscience and Behavioral Research offers a more in-depth treatment of concerns specific to these disciplines than any previous guide on animal care and use. It treats on such important subjects as: The important role that the researcher and veterinarian play in developing animal protocols. Methods for assessing and ensuring an animal's well-being. General animal-care elements as they apply to neuroscience and behavioral research, and common animal welfare challenges this research can pose. The use of professional judgment and careful interpretation of regulations and guidelines to develop performance standards ensuring animal well-being and high-quality research. Guidelines for the Care and Use of Mammals in Neuroscience and Behavioral Research treats the development and evaluation of animal-use protocols as a decision-making process, not just a decision. To this end, it presents the most current, in-depth information about the best practices for animal care and use, as they pertain to the intricacies of neuroscience and behavioral research.

Plant Chimeras

Plant Chimeras PDF Author: Richard A. E. Tilney-Bassett
Publisher: Cambridge University Press
ISBN: 9780521427876
Category : Science
Languages : en
Pages : 208

Get Book Here

Book Description
This book, which was originally published in 1986, introduces the reader to the main steps in the analysis of chimeras, explains their structural and developmental basis, and the ways of classifying and manipulating them. The twelve chapters separate types of chimeras according to their origin - by grafting or polyploidy; their structure - sectorial or periclinal; or according to the varied parts of the plant most affected - tubers, leaves, flowers or fruit. Throughout the book care is taken to distinguish between the activity of the growing-point in determining chimera structure, and the role of gene expression in determining appearance. Examples of the experimental uses of chimeras are given and of the valuable role they can play in studying fundamental questions of anatomical development; the disadvantages of chimeras in mutation breeding are discussed too.

Current and Future Reproductive Technologies and World Food Production

Current and Future Reproductive Technologies and World Food Production PDF Author: G. Cliff Lamb
Publisher: Springer Science & Business Media
ISBN: 1461488877
Category : Science
Languages : en
Pages : 255

Get Book Here

Book Description
​​​​​​​​​​​This book addresses the impacts of current and future reproductive technologies on our world food production and provides a significant contribution to the importance of research in the area of reproductive physiology that has never been compiled before. It would provide a unique opportunity to separate the impacts of how reproductive technologies have affected different species and their contributions to food production. Lastly, no publication has been compiled that demonstrates the relationship between developments in reproductive management tools and food production that may be used a reference for scientists in addressing future research areas. ​During the past 50 years assisted reproductive technologies have been developed and refined to increase the number and quality of offspring from genetically superior farm animal livestock species. Artificial insemination (AI), estrous synchronization and fixed-time AI, semen and embryo cryopreservation, multiple ovulation and embryo transfer (MOET), in vitro fertilization, sex determination of sperm or embryos, and nuclear transfer are technologies that are used to enhance the production efficiency of livestock species.

Chimera's Children

Chimera's Children PDF Author: David Albert Jones
Publisher: A&C Black
ISBN: 1441195807
Category : Religion
Languages : en
Pages : 255

Get Book Here

Book Description
A comprehensive survey of the current context and ethical implications of human-nonhuman genetic combinations. The idea of human-nonhuman combinations has been a recurrent theme throughout the history of humanity. From the myths of the Minotaur and the centaurs in ancient Greece to the dogheads of the Middle Ages right through to the monsters of modern science fiction, these beings have always been a source of fascination. In recent years, however, biomedical advances have demonstrated the potential to make these entities a reality through the creation of inter-species combinations. As a result, pressing and perplexing ethical questions arise. Introducing the reader to the historical context of human-nonhuman experimentation and potential future developments, this volume offers clarification, analysis and a thorough overview of the ethical challenges relating to human-nonhuman chimeras, true hybrids, cybrids and other combinations. This book is the first accessible survey of the different ethical dilemmas facing contemporary society in the creation of human-nonhuman embryonic, foetal and postnatal entities. These include important cultural, legal, philosophical and religious perspectives. As such it will act as a springboard for future debate.

Human Genome Editing

Human Genome Editing PDF Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309452880
Category : Medical
Languages : en
Pages : 329

Get Book Here

Book Description
Genome editing is a powerful new tool for making precise alterations to an organism's genetic material. Recent scientific advances have made genome editing more efficient, precise, and flexible than ever before. These advances have spurred an explosion of interest from around the globe in the possible ways in which genome editing can improve human health. The speed at which these technologies are being developed and applied has led many policymakers and stakeholders to express concern about whether appropriate systems are in place to govern these technologies and how and when the public should be engaged in these decisions. Human Genome Editing considers important questions about the human application of genome editing including: balancing potential benefits with unintended risks, governing the use of genome editing, incorporating societal values into clinical applications and policy decisions, and respecting the inevitable differences across nations and cultures that will shape how and whether to use these new technologies. This report proposes criteria for heritable germline editing, provides conclusions on the crucial need for public education and engagement, and presents 7 general principles for the governance of human genome editing.

Human Cloning and Human Dignity

Human Cloning and Human Dignity PDF Author: The President's Council on Bioethics
Publisher: Createspace Independent Publishing Platform
ISBN: 9781508822318
Category :
Languages : en
Pages : 0

Get Book Here

Book Description
The prospect of human cloning burst into the public consciousness in 1997, following the announcement of the successful cloning of Dolly the sheep. It has since captured much attention and generated great debate, both in the United States and around the world. Many are repelled by the idea of producing children who would be genetically virtually identical to preexisting individuals, and believe such a practice unethical. But some see in such cloning the possibility to do good for infertile couples and the broader society. Some want to outlaw it, and many nations have done so. Others believe the benefits outweigh the risks and the moral concerns, or they oppose legislative interference with science and technology in the name of freedom and progress. Complicating the national dialogue about human cloning is the isolation in 1998 of human embryonic stem cells, which many scientists believe to hold great promise for understanding and treating many chronic diseases and conditions. Some scientists also believe that stem cells derived from cloned human embryos, produced explicitly for such research, might prove to be uniquely useful for studying many genetic diseases and devising novel therapies. Public reaction to this prospect has been mixed, with some Americans supporting it in the hope of advancing biomedical research and helping the sick and the suffering, while others are concerned about the instrumentalization or abuse of nascent human life and the resulting danger of moral insensitivity and degradation.