[PDF] Brain Organoid Research eBook

Author : Jay Gopalakrishnan
Publisher : Springer Nature
Page : 232 pages
File Size : 38,54 MB
Release : 2022-09-22
Category : Medical
ISBN : 1071627201

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This volume explores multiple methods and approaches used to generate human brain and neuroretinal organoids to address fundamental questions in human brain research. The chapters in this book cover topics such as self-organizing brain organoids with ventricles amenable to injection and electroporation; visualization of 3D organoids though the latest advancements in microscopy; generation of 3D retinal tissue with physiologically competent, light-sensitive photoreceptors; modeling brain tumors using genetically edited brain organoids; and brain organoids as a model to study Zika virus and SARS-CoV-2 infections. In the Neuromethods series style, chapters include the kind of detail and key advice from the specialists needed to get successful results in your laboratory. Comprehensive and cutting-edge, Brain Organoid Research is a valuable resource for researchers at various levels of learning, ranging from undergraduate students, early researchers, and advanced laboratories. This book aims to be instrumental in moving this developing field forward.

Author : Hans-Georg Dederer
Publisher : Springer Nature
Page : 267 pages
File Size : 14,84 MB
Release : 2022-07-09
Category : Medical
ISBN : 3030976416

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This volume elucidates the pivotal ethical and legal issues arising from the use of brain organoids for research, therapeutic and enhancement purposes. The function of the human brain is still a mystery. Until recently, only post-mortem tissue was available for a structural examination of the brain. Consequently, the examination results could only reflect the state at the end of life. However, in order to better understand the development and function of the human brain, dynamic and functional investigations of different human brain cells are necessary. This is where brain organoids, artificially grown in vitro miniature brains, provide the opportunity for more flexible research scenarios. At the same time, however, the use of brain organoids in research and therapy raises the question of how these new entities are to be treated from an ethical and legal point of view. Against this background, this volume aims at clarifying the normative implications of the use of brain organoids in research and therapy. The ethical reflections on the status of brain organoids, informed consent, human-to-animal chimeras and neuro-enhancement are mirrored by corresponding legal analyses. The ethical and legal assessments are preceded by an introduction to the scientific and medical background of the brain organoid technology. A final chapter will be devoted to the issue of whether international harmonization of normative standards for brain organoid research and therapy is feasible and advisable.

Author : National Academies of Sciences Engineering and Medicine
Publisher :
Page : 144 pages
File Size : 33,8 MB
Release : 2022-01-08
Category : Electronic books
ISBN : 9780309303361

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The United States military is arguably the most intensely technological, complex enterprise in existence. When compared to the gross domestic products of other countries, the Department of Defense (DoD) budget ranks above all but about 20 nations. If viewed as a company, it would be the largest globally with the most employees. Major investments in weapons systems using advanced technologies provide an advantage over competing systems. Each weapon, platform, vehicle, and person in an operating force is a node in one or more advanced networks that provide the ability to rapidly form a coherent force from a large number of broadly distributed elements. DoD's ability to create and operate forces of this nature demands a competent understanding by its workforce of the composition, acquisition, and employment of its technology-enabled forces. Review of Specialized Degree-Granting Graduate Programs of the Department of Defense in STEM and Management focuses on the graduate science, technology, engineering, mathematics and management (STEM+M) education issues of the Air Force, Navy, and Marines. This report assesses the cost, benefits, and organizational placement of DoD institutions that grant degrees in STEM+M and evaluates alternative ways - for example, civilian institutions and distance learning - to ensure adequate numbers and high-quality education outcomes for DoD personnel."--Publisher's description.

Author : Insoo Hyun
Publisher : Springer
Page : 0 pages
File Size : 33,16 MB
Release : 2025-02-11
Category : Science
ISBN : 9783031723704

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Brain organoids are small stem cell-derived, self-organizing models of specific brain regions that offer researchers new ways to study the human brain. Since their scientific debut over ten years ago, brain organoids have been used to generate tractable new bioengineered tools for understanding functional interconnectivity of the human brain, dysfunction involved in many neurodegenerative diseases, and certain molecular mechanisms underlying cognition. Despite this field’s considerable scientific promise, advances in human brain organoid research also raise novel philosophical questions and ethical concerns around the use of complex human brain models and the ethical boundaries that should exist when manipulating increasingly realistic bioengineered brain constructs. As researchers generate more realistic organoids in vitro that resemble human brains, it is critically important to understand what ethical boundaries may exist and where researchers and regulators should draw the line for research, both to reduce uncertainties over which projects to pursue in the lab and to address future concerns regulators and the public may harbor about whether this research, if left unexamined, could inadvertently undermine public trust in science. This proposed book delves into ongoing and proactive ethical discussions among ethicists and the neuroscientists involved with this cutting-edge work. Its ultimate goal is to foster greater awareness, understanding, and guidance for future management of ethical issues that may be unique to new areas of brain organoid research. This volume is the result of a close partnership between ethicists and scientists, each informing the other through a collaborative process of joint bioethical deliberation.

Author : Insoo Hyun
Publisher : Cambridge University Press
Page : 239 pages
File Size : 50,34 MB
Release : 2013-06-24
Category : Medical
ISBN : 0521768691

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This book provides a sophisticated yet accessible account of emerging trends in stem cell research and their accompanying ethical issues.

Author : Shay Soker
Publisher : Humana Press
Page : 225 pages
File Size : 23,76 MB
Release : 2017-10-20
Category : Medical
ISBN : 3319605119

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Cancer cell biology research in general, and anti-cancer drug development specifically, still relies on standard cell culture techniques that place the cells in an unnatural environment. As a consequence, growing tumor cells in plastic dishes places a selective pressure that substantially alters their original molecular and phenotypic properties.The emerging field of regenerative medicine has developed bioengineered tissue platforms that can better mimic the structure and cellular heterogeneity of in vivo tissue, and are suitable for tumor bioengineering research. Microengineering technologies have resulted in advanced methods for creating and culturing 3-D human tissue. By encapsulating the respective cell type or combining several cell types to form tissues, these model organs can be viable for longer periods of time and are cultured to develop functional properties similar to native tissues. This approach recapitulates the dynamic role of cell–cell, cell–ECM, and mechanical interactions inside the tumor. Further incorporation of cells representative of the tumor stroma, such as endothelial cells (EC) and tumor fibroblasts, can mimic the in vivo tumor microenvironment. Collectively, bioengineered tumors create an important resource for the in vitro study of tumor growth in 3D including tumor biomechanics and the effects of anti-cancer drugs on 3D tumor tissue. These technologies have the potential to overcome current limitations to genetic and histological tumor classification and development of personalized therapies.

Author : Insoo Hyun
Publisher : Humana
Page : 234 pages
File Size : 43,5 MB
Release : 2020-08-14
Category : Science
ISBN : 9781493995264

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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.

Author : Robert W. Lurz
Publisher : Cambridge University Press
Page : 321 pages
File Size : 35,50 MB
Release : 2009-09-03
Category : Philosophy
ISBN : 1139481029

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This volume is a collection of fourteen essays by leading philosophers on issues concerning the nature, existence, and our knowledge of animal minds. The nature of animal minds has been a topic of interest to philosophers since the origins of philosophy, and recent years have seen significant philosophical engagement with the subject. However, there is no volume that represents the current state of play in this important and growing field. The purpose of this volume is to highlight the state of the debate. The issues which are covered include whether and to what degree animals think in a language or in iconic structures, possess concepts, are conscious, self-aware, metacognize, attribute states of mind to others, and have emotions, as well as issues pertaining to our knowledge of and the scientific standards for attributing mental states to animals.

Author : Cristina Cereda
Publisher : Frontiers Media SA
Page : 101 pages
File Size : 36,54 MB
Release : 2020-12-18
Category : Science
ISBN : 2889662640

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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

Author : Leonora Buzanska
Publisher : Springer
Page : 334 pages
File Size : 14,12 MB
Release : 2018-09-12
Category : Science
ISBN : 3319934856

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This book summarizes early pioneering achievements in the field of human neural stem cell (hNSC) research and combines them with the latest advances in stem cell technology, including reprogramming and gene editing. The powerful potential of hNSC to generate and repair the developing and adult CNS has been confirmed by numerous experimental in vitro and in vivo studies. The book presents methods for hNSC derivation and discusses the mechanisms underlying NSC in vitro fate decisions and their in vivo therapeutic mode of action. The long-standing dogma that the human central nervous system (CNS) lacks the ability to regenerate was refuted at the end of the 20th century, when evidence of the presence of neurogenic zones in the adult human brain was found. These neurogenic zones are home to human neural stem cells (hNSCs), which are capable of self-renewing and differentiating into neurons, astrocytes and oligodendrocytes. NSCs isolated from human CNS have a number of clinical advantages, especially the innate potential to differentiate into functional neural cells. Nevertheless, their full clinical exploitation has been hindered by limited access to the tissue and low expansion potential. The search for an alternative to CNS sources of autologous, therapeutically competent hNSCs was the driving force for the many studies proving the in vitro plasticity of different somatic stem cells to generate NSCs and their functional progeny. Now the era of induced pluripotent stem cells has opened entirely new opportunities to achieve research and therapeutic goals with the aid of hNSCs.