Optogenetics: An Emerging Approach in Cardiac Electrophysiology PDF Download

Author: Ming Lei
Publisher: Frontiers Media SA
ISBN: 2889638030
Category :
Languages : en
Pages : 147

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Author: Tobias Bruegmann
Publisher: Frontiers Media SA
ISBN: 2832505821
Category : Science
Languages : en
Pages : 189

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Topic Editor Godfrey Smith is the founder, director and honorary Chief Scientific Officer of Clyde Biosciences Ltd (UK). The other Topic Editors declare no competing interests with regard to the Research Topic subject.

Author: Gerard A. Marchal
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Abstract: Optogenetics, utilising light-reactive proteins to manipulate tissue activity, are a relatively novel approach in the field of cardiac electrophysiology. We here provide an overview of light-activated transmembrane channels (optogenetic actuators) currently applied in strategies to modulate cardiac activity, as well as newly developed variants yet to be implemented in the heart. In addition, we touch upon genetically encoded indicators (optogenetic sensors) and fluorescent dyes to monitor tissue activity, including cardiac transmembrane potential and ion homeostasis. The combination of the two allows for all-optical approaches to monitor and manipulate the heart without any physical contact. However, spectral congestion poses a major obstacle, arising due to the overlap of excitation/activation and emission spectra of various optogenetic proteins and/or fluorescent dyes, resulting in optical crosstalk. Therefore, optogenetic proteins and fluorescent dyes should be carefully selected to avoid optical crosstalk and consequent disruptions in readouts and/or cellular activity. We here present a novel approach to simultaneously monitor transmembrane potential and cytosolic calcium, while also performing optogenetic manipulation. For this, we used the novel voltage-sensitive dye ElectroFluor 730p and the cytosolic calcium indicator X-Rhod-1 in mouse hearts expressing channelrhodopsin-2 (ChR2). By exploiting the isosbestic point of ElectroFluor 730p and avoiding the ChR2 activation spectrum, we here introduce a novel optical imaging and manipulation approach with minimal crosstalk. Future developments in both optogenetic proteins and fluorescent dyes will allow for additional and more optimised strategies, promising a bright future for all-optical approaches in the field of cardiac electrophysiology

Author: Ellen Covey
Publisher: Oxford University Press
ISBN: 0199342547
Category : Medical
Languages : en
Pages : 241

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Book Description
Basic Electrophysiological Methods provides a concise and easy-to-read guide on a selection of the most important contemporary electrophysiological techniques, their implementation, applications, and ways in which they can be combined and integrated with neuroscientific techniques. Intended for students, postdocs, and faculty with a basic neuroscience background, this text will not obscure the relevant technical details with textbook neuroscience tutorials as many other books do. Instead, each chapter provides a conscientious overview of the underlying theory -- a comprehensive description of equipment, materials, methods, data management, and analysis -- a troubleshooting guide, and a list of frequently asked questions. No book or online resource can function as strictly a DIY set of instructions on how to implement a complex technique. However, this book provides a fundamental and accessible set of information intended to form a foundation prior to, during, and after hands-on experience and training, greatly facilitating the initial learning process and subsequent fine-tuning of technical details.

Author: Douglas P. Zipes
Publisher: Elsevier Health Sciences
ISBN: 1455770108
Category : Medical
Languages : en
Pages : 1397

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Book Description
Cardiac Electrophysiology: From Cell to Bedside puts the latest knowledge in this subspecialty at your fingertips, giving you a well-rounded, expert grasp of every cardiac electrophysiology issue that affects your patient management. Drs. Zipes, Jalife, and a host of other world leaders in cardiac electrophysiology use a comprehensive, multidisciplinary approach to guide you through all of the most recent cardiac drugs, techniques, and technologies. Consult this title on your favorite e-reader, conduct rapid searches, and adjust font sizes for optimal readability. Compatible with Kindle®, nook®, and other popular devices. Get well-rounded, expert views of every cardiac electrophysiology issue that affects your patient management from preeminent authorities in cardiology, physiology, pharmacology, pediatrics, biophysics, pathology, cardiothoracic surgery, and biomedical engineering from around the world. Visually grasp and easily absorb complex concepts through an attractive full-color design featuring color photos, tables, flow charts, ECGs, and more! Integrate the latest scientific understanding of arrhythmias with the newest clinical applications, to select the right treatment and management options for each patient. Stay current on the latest advancements and developments with sweeping updates and 52 NEW chapters - written by many new authors - on some of the hottest cardiology topics, such as new technologies for the study of the molecular structure of ion channels, molecular genetics, and the development of new imaging, mapping and ablation techniques. Get expert advice from Dr. Douglas P. Zipes - a leading authority in electrophysiology and editor of Braunwald’s Heart Disease and the Heart Rhythm Journal - and Dr. Jose Jalife - a world-renowned leader and researcher in basic and translational cardiac electrophysiology. Access the full text online at Expert Consult, including supplemental text, figures, tables, and video clips.

Author: Douglas P. Zipes
Publisher: Elsevier Health Sciences
ISBN: 145572856X
Category : Medical
Languages : en
Pages : 1395

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Book Description
Cardiac Electrophysiology: From Cell to Bedside puts the latest knowledge in this subspecialty at your fingertips, giving you a well-rounded, expert grasp of every cardiac electrophysiology issue that affects your patient management. Drs. Zipes, Jalife, and a host of other world leaders in cardiac electrophysiology use a comprehensive, multidisciplinary approach to guide you through all of the most recent cardiac drugs, techniques, and technologies. Get well-rounded, expert views of every cardiac electrophysiology issue that affects your patient management from preeminent authorities in cardiology, physiology, pharmacology, pediatrics, biophysics, pathology, cardiothoracic surgery, and biomedical engineering from around the world. Visually grasp and easily absorb complex concepts through an attractive full-color design featuring color photos, tables, flow charts, ECGs, and more! Integrate the latest scientific understanding of arrhythmias with the newest clinical applications, to select the right treatment and management options for each patient. Stay current on the latest advancements and developments with sweeping updates and 52 NEW chapters - written by many new authors - on some of the hottest cardiology topics, such as new technologies for the study of the molecular structure of ion channels, molecular genetics, and the development of new imaging, mapping and ablation techniques. Get expert advice from Dr. Douglas P. Zipes - a leading authority in electrophysiology and editor of Braunwald's Heart Disease and the Heart Rhythm Journal - and Dr. Jose Jalife - a world-renowned leader and researcher in basic and translational cardiac electrophysiology. Access the full text online at Expert Consult, including supplemental text, figures, tables, and video clips. Your purchase entitles you to access the web site until the next edition is published, or until the current edition is no longer offered for sale by Elsevier, whichever occurs first. If the next edition is published less than one year after your purchase, you will be entitled to online access for one year from your date of purchase. Elsevier reserves the right to offer a suitable replacement product (such as a downloadable or CD-ROM-based electronic version) should online access to the web site be discontinued.

Author: Buhong Li
Publisher: John Wiley & Sons
ISBN: 3527346562
Category : Science
Languages : en
Pages : 309

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Book Description
A state-of-the-art examination of biomedical photonic research, technologies, and applications In Biomedical Photonic Technologies, a team of distinguished researchers delivers a methodical inquiry and evaluation of the latest developments in the field of biomedical photonics, with a focus on novel technologies, including optical microscopy, optical coherence tomography, fluorescence imaging-guided surgery, photodynamic therapy dosimetry, and optical theranostic technologies. Each discussion of individual technologies includes examples of their contemporary application in areas like cancer therapy and drug delivery. Readers will discover the major research advancements in biomedical photonics from the last 20 years, ascertaining the basic principles of formation, development, and derivation of biomedical photonics phenomena at a variety of scales. Readers will also find: A thorough introduction to advanced wide-field fluorescent microscopy for biomedicine Comprehensive explorations of fluorescence resonance energy transfer and optical coherence tomography for structural and functional imaging Practical exploration of coherent Raman scattering microscopy and biomedical applications, as well as fluorescence image-guided surgery Complete analyses of enhanced photodynamic therapy, optogenetics, and optical theranostics employing gold nanoparticles Perfect for biophysicists and applied physicists, Biomedical Photonic Technologies will also benefit bioengineers and biotechnologists in academia and in industry.

Author: Mohammad Shenasa
Publisher: John Wiley & Sons
ISBN: 1119152623
Category : Medical
Languages : en
Pages : 1304

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Book Description
The expanded guide to cardiac mapping The effective diagnosis and treatment of heart disease may vitally depend upon accurate and detailed cardiac mapping. However, in an era of rapid technological advancement, medical professionals can encounter difficulties maintaining an up-to-date knowledge of current methods. This fifth edition of the much-admired Cardiac Mapping is, therefore, essential, offering a level of cutting-edge insight that is unmatched in its scope and depth. Featuring contributions from a global team of electrophysiologists, the book builds upon previous editions' comprehensive explanations of the mapping, imaging, and ablation of the heart. Nearly 100 chapters provide fascinating accounts of topics ranging from the mapping of supraventricular and ventriculararrhythmias, to compelling extrapolations of how the field might develop in the years to come. In this text, readers will find: Full coverage of all aspects of cardiac mapping, and imaging Explorations of mapping in experimental models of arrhythmias Examples of new catheter-based techniques Access to a companion website featuring additional content and illustrative video clips Cardiac Mapping is an indispensable resource for scientists, clinical electrophysiologists, cardiologists, and all physicians who care for patients with cardiac arrhythmias.

Author: Udi Nussinovitch
Publisher: Academic Press
ISBN: 0128137053
Category : Medical
Languages : en
Pages : 594

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Book Description
The increasing pace of advances in cardiology throughout the last few decades has fundamentally altered the natural course of heart patients. In the last few years, available therapies have been revolutionized completely by new transcatheter therapeutic approaches, novel ventricular assist devices, and new drugs. Also, molecular biology and genetics have a rapidly growing impact on cardiovascular diseases, enabling the field of regenerative medicine to become increasingly closer to routine clinical implementation. Emerging Technologies for Heart Diseases was conceived to cover the recent extensive literature on current and novel therapeutic options for cardiac patients. The first volume is dedicated to heart failure and valvular disorders, and the second covers myocardial ischemia and arrhythmias. The clinical topic is addressed in several chapters divided according to the therapeutic approach (mechanical or electrical device-based, or cell and gene-based). Each of the 46 chapters focuses on clinically available solutions, new therapies currently under evaluation in clinical trials, promising preclinical technologies, and emerging concepts and innovations that have not yet been tested in a preclinical model. Also, the book discusses future challenges and opportunities for clinical implementation. Lessons learned from abandoned experimental practices are also covered, giving the readers the widest possible perspective of current therapeutic dilemmas. Overall, this textbook was designed for physicians who want to stay up-to-date with current therapies and those of the future, for biomedical companies, and for those who wish to broaden their knowledge of new cardiovascular therapeutic options. Provides a comprehensive review of the latest therapeutic developments for heart failure, valvular disorders, myocardial ischemia and arrhythmias, and their clinical implications Written by both specialists in the field and established researchers, it delivers a review of emerging medical technologies and presents insight into their therapeutic promise Chapters are arranged according to disease pathogeneses and relevance and include coverage of the mechanical, electrophysiological, and biological approaches for the management of patients with myocardial ischemia and arrhythmias

Author: Marco Canepari
Publisher: Springer
ISBN: 3319176412
Category : Medical
Languages : en
Pages : 511

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Book Description
This volume discusses membrane potential imaging in the nervous system and in the heart and modern optical recording technology. Additionally, it covers organic and genetically-encoded voltage-sensitive dyes; membrane potential imaging from individual neurons, brain slices, and brains in vivo; optical imaging of cardiac tissue and arrhythmias; bio-photonics modelling. This is an expanded and fully-updated second edition, reflecting all the recent advances in this field. Twenty chapters, all authored by leading names in the field, are cohesively structured into four sections. The opening section focuses on the history and principles of membrane potential imaging and lends context to the following sections, which examine applications in single neurons, networks, large neuronal populations and the heart. Topics discussed include population membrane potential signals in development of the vertebrate nervous system, use of membrane potential imaging from dendrites and axons, and depth-resolved optical imaging of cardiac activation and repolarization. The final section discusses the potential – and limitations – for new developments in the field, including new technology such as non-linear optics, advanced microscope designs and genetically encoded voltage sensors. Membrane Potential Imaging in the Nervous System and Heart is ideal for neurologists, electro physiologists, cardiologists and those who are interested in the applications and the future of membrane potential imaging.