Therapeutic Implications of Circadian Rhythms

Therapeutic Implications of Circadian Rhythms PDF Author: Guangrui Yang
Publisher: Frontiers Media SA
ISBN: 2889196658
Category : Circadian rhythms
Languages : en
Pages : 98

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Book Description
Circadian rhythms are biological processes displaying endogenous and entrainable oscillations of about 24 hours. They are driven by a group of genes called clock genes that have been widely observed in plants, animals and even in bacteria. In mammals, the core clock genes are rhythmically expressed in both the suprachiasmatic nucleus (SCN), the master clock residing in the hypothalamus, and almost all peripheral tissues where they control numerous target genes in a circadian manner, and thus affect many physiological and biochemical processes. Evidence suggests that disruption of the circadian rhythms (or desynchronization) is a significant risk factor for the development of metabolic diseases, cardiovascular diseases, cancer and sleep disorders. Evidence also suggests that the disruption suppresses immune function and increases vulnerability to infectious diseases. Restoring or strengthening the circadian rhythm may be therapeutic for these conditions. This becomes exceptionally important in modern societies because many people are suffering from frequent desynchronization due to shift working, exposure to artificial light, travel by transmeridian air flight, and involvement in social activities. Besides, the temporal variations in the incidence and severity of many diseases, such as the onset of cardiovascular events, chronic obstructive pulmonary disease (COPD), inflammatory diseases and mental disorders have also drawn increasing attention to the circadian clock. The circadian rhythms affect not only the health status, but also the drug efficiency. The effects (and side effects) of many drugs vary with biological timing. The tolerance of many medications displays circadian variation as well. The timing of medical treatment in coordination with the body clock may significantly increase the desired effects of drugs, and lower the dose and toxicity. In addition, circadian rhythms can also be modulated by some therapeutic drugs, for example, melatonin and modafinil, which are used to treat circadian rhythm sleep disorders. In this Research Topic, we assemble a series of critical review and research articles that focus on the therapeutic implications of circadian rhythms. Topics include, but are not limited to: • Circadian disruption caused diseases or disorders and related intervention • Temporal manifestation of diseases or disorders and therapeutic implications • The effects of circadian rhythms on drugs • The effects of drugs on circadian rhythms

Therapeutic Implications of Circadian Rhythms

Therapeutic Implications of Circadian Rhythms PDF Author: Guangrui Yang
Publisher: Frontiers Media SA
ISBN: 2889196658
Category : Circadian rhythms
Languages : en
Pages : 98

Get Book

Book Description
Circadian rhythms are biological processes displaying endogenous and entrainable oscillations of about 24 hours. They are driven by a group of genes called clock genes that have been widely observed in plants, animals and even in bacteria. In mammals, the core clock genes are rhythmically expressed in both the suprachiasmatic nucleus (SCN), the master clock residing in the hypothalamus, and almost all peripheral tissues where they control numerous target genes in a circadian manner, and thus affect many physiological and biochemical processes. Evidence suggests that disruption of the circadian rhythms (or desynchronization) is a significant risk factor for the development of metabolic diseases, cardiovascular diseases, cancer and sleep disorders. Evidence also suggests that the disruption suppresses immune function and increases vulnerability to infectious diseases. Restoring or strengthening the circadian rhythm may be therapeutic for these conditions. This becomes exceptionally important in modern societies because many people are suffering from frequent desynchronization due to shift working, exposure to artificial light, travel by transmeridian air flight, and involvement in social activities. Besides, the temporal variations in the incidence and severity of many diseases, such as the onset of cardiovascular events, chronic obstructive pulmonary disease (COPD), inflammatory diseases and mental disorders have also drawn increasing attention to the circadian clock. The circadian rhythms affect not only the health status, but also the drug efficiency. The effects (and side effects) of many drugs vary with biological timing. The tolerance of many medications displays circadian variation as well. The timing of medical treatment in coordination with the body clock may significantly increase the desired effects of drugs, and lower the dose and toxicity. In addition, circadian rhythms can also be modulated by some therapeutic drugs, for example, melatonin and modafinil, which are used to treat circadian rhythm sleep disorders. In this Research Topic, we assemble a series of critical review and research articles that focus on the therapeutic implications of circadian rhythms. Topics include, but are not limited to: • Circadian disruption caused diseases or disorders and related intervention • Temporal manifestation of diseases or disorders and therapeutic implications • The effects of circadian rhythms on drugs • The effects of drugs on circadian rhythms

Human Circadian Physiology

Human Circadian Physiology PDF Author: Charles A. Czeisler
Publisher:
ISBN:
Category : Human physiology
Languages : en
Pages : 692

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Book Description


Science of Circadian Rhythms, An Issue of Sleep Medicine Clinics, E-Book

Science of Circadian Rhythms, An Issue of Sleep Medicine Clinics, E-Book PDF Author: Phyllis C. Zee
Publisher: Elsevier Health Sciences
ISBN: 0323402712
Category : Medical
Languages : en
Pages :

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Book Description
Dr. Phyllis Zee has put together an expert panel of authors on the topic of the Science of Circadian Rhythms. Articles include: Neurobiology of Circadian Rhythm Regulation, Effect of Light and Melatonin and other Melatonin Receptor Agonists on Human Circadian Physiology, Consequences of Circadian Disruption on Cardiometabolic Health, Consequences Circadian Disruption on Neurologic and Psychiatric Health, Aging and Circadian Rhythms, Circadian and Homeostatic Regulation of Sleep and Performance, Circadian disruption in Psychiatric Disorders, and more!

Circadian Rhythms and Their Impact on Aging

Circadian Rhythms and Their Impact on Aging PDF Author: S. Michal Jazwinski
Publisher: Springer
ISBN: 3319645439
Category : Medical
Languages : en
Pages : 361

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Book Description
Biological rhythms time the ebb and flow of virtually every physiological process, and their mutual coordination guarantees the integrity of the organism over space and time. Aging leads to the disintegration of this coordination, as well as to changes in the amplitude and/or frequency of the underlying rhythms. The results of this are accelerated loss of health during aging, and in experimental model systems curtailed lifespan occurs. This book will examine the machinery that constitutes circadian systems and how they impact physiologic processes. It will also discuss how disturbances of circadian rhythms can lead to complex diseases associated with aging. Much of this treatment will focus on metabolism and genome stability. Importantly, the chapters in this book will encompass work in several different models, in addition to human. The book will conclude with a discussion of modeling approaches to biologic cycles and chronotherapy, for future research and translation.

Advances in the Psychobiology of Sleep and Circadian Rhythms

Advances in the Psychobiology of Sleep and Circadian Rhythms PDF Author: Melinda L. Jackson
Publisher: Taylor & Francis
ISBN: 1003830927
Category : Psychology
Languages : en
Pages : 236

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Book Description
Advances in the Psychobiology of Sleep and Circadian Rhythms features international experts from the fields of psychobiology, sleep research and chronobiology to address and review cutting-edge scientific literature concerning recent advances in the psychobiology of sleep, sleep disorders, such as sleep apnoea and insomnia, and circadian rhythms, across the lifespan. In this illuminating volume, Melinda L. Jackson and Sean P.A. Drummond bring together leading international researchers to review cross-cutting issues in the field, including sleep and pain, sleep and dementia risk, and sleep issues in paediatric populations as well as the interaction between sleep and health conditions in different populations. The chapters offer coverage of the major explanatory models which underpin the empirical work as well as a discussion of the relevant theoretical and conceptual models on issues arising with specific psychiatric and medical disorders, including depression, dementia, posttraumatic stress disorder and pain. They also address new research in the area of chronobiology, and circadian impacts on health and diseases. The chapters also discuss important methodological and ethical issues arising in research and include sections addressing implications for public policy and practitioner interventions in the context of different social and cultural environments. This volume will be a crucial resource for professionals, practitioners and researchers engaged in the field as well as for postgraduate and upper-level undergraduate students undertaking research in areas related to psychobiology, neuropsychology, health psychology and other disciplines such as biology, physiology and psychopharmacology.

Circadian Rhythm Sleep-Wake Disorders

Circadian Rhythm Sleep-Wake Disorders PDF Author: R. Robert Auger
Publisher: Springer Nature
ISBN: 3030438031
Category : Medical
Languages : en
Pages : 251

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Book Description
This book resolves to bridge the communication gap between research and clinical practice for circadian rhythm sleep-wake disorders. Beginning with a scientific background on biological timekeeping, opening chapters describe the crucial nature of maintaining delicate temporal organization of physiological and molecular events within the body. Following this are discussions on circadian physiology and methods of circadian assessments. Subsequent chapters then relay comprehensive information regarding the International Classification of Sleep Disorders-defined circadian rhythm sleep-wake disorders (CRSWDs), specifically discussing etiology and epidemiology, but focusing on evidence-based treatment data. Concluding discussions provide guidance for the application of light therapy and discuss future roles for optimized lighting environments. Nuanced and market-demanded, Circadian Rhythm Sleep-Wake Disorders: An Evidence-Based Guide for Clinicians and Investigators is an invaluable resource for Sleep Medicine clinicians, circadian researchers, and other interested parties.

Chronotherapeutics

Chronotherapeutics PDF Author: P. H. Redfern
Publisher: Pharmaceutical Press
ISBN: 9780853694885
Category : Biological rhythms
Languages : en
Pages : 456

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Book Description
In nature, many physical processes are governed by the passage of time. The study of these processes - chronobiology - reveals rhythmic patterns which may be yearly, monthly, daily or more frequent. Novel drug delivery systems are currently being delivered that will release varying quantities of a drug at optimum times to coincide with these rhythmic patterns.Chronotherapeutics considers the pharmaceutical and therapeutic implications associated with biological clocks. The book presents a comprehensive discussion of specific diseases that are time dependent, and the drugs and new drug formulations that can be used as treatments.Written by leading international experts in the field, Chronotherapeutics provides up-to-date information on chronobiology for non-chronobiologists in pharmaceutical and medical sciences. Peter Redfern is Professor of Pharmacology at the University of Bath, UK.

Circadian Rhythms and Metabolism

Circadian Rhythms and Metabolism PDF Author: Etienne Challet
Publisher: Frontiers Media SA
ISBN: 2889452824
Category : Electronic book
Languages : en
Pages : 190

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Book Description
One of the major breakthroughs of the last decade in the understanding of energy homeostasis is the identification of a reciprocal control between circadian rhythmicity and cellular metabolism. Circadian rhythmicity is a fundamental endogenous process of almost every organism living on Earth. For instance, the alternation of hunger and satiety is not continuous over 24 h, but is instead structured in time along the light/dark cycle. In mammals, the temporal organization of metabolism, physiology and behavior around 24 h is controlled by a network of multiple cellular clocks, synchronized via neuronal and hormonal signals by a master clock located in the suprachiasmatic nuclei of the hypothalamus. This central circadian conductor in the brain is mainly reset by ambient light perceived by the retina, while secondary circadian clocks in other brain areas and peripheral organs can be reset by meal timing. Chronic disruption of circadian rhythms, as seen in human shift-workers (up to 20% of the active population), has been associated with the development of a number of adverse mental and metabolic conditions. Understanding of the functional links between circadian desynchronization and overall health in animal models and humans, however, is still scarce. Interactions between circadian clocks and metabolism can occur at different levels: the molecular clockwork, internal synchronization via neuro-hormonal signals, or external synchronization via photic or feeding cues. This Research Topic comprises a number of reviews as well as research and methods articles that feature recent advancements in the mechanisms linking circadian clocks with energy metabolism, and the pathophysiological implications of these interactions for metabolic health.

Circadian Clocks: Role in Health and Disease

Circadian Clocks: Role in Health and Disease PDF Author: Michelle L. Gumz
Publisher: Springer
ISBN: 1493934503
Category : Medical
Languages : en
Pages : 378

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Book Description
This book sheds new light on the molecular mechanisms that generate circadian rhythms. It examines how biological rhythms influence physiological processes such as sleep, hormone synthesis and secretion, immunity, kidney function, the cardiovascular system, blood pressure, and the digestive system. Clinical implications are considered while exploring the impact of rhythms on neuropsychiatric disorders and chronotherapy’s potential for reducing cardiovascular risk. Offering a cross-section of expertise in both basic and translational (bench-to-bedside) research, this book serves as a guide for physicians and scientists who wish to learn more about the impact of circadian rhythms on physiological processes in health and disease.

Sleep-Wake Neurobiology and Pharmacology

Sleep-Wake Neurobiology and Pharmacology PDF Author: Hans-Peter Landolt
Publisher: Springer Nature
ISBN: 3030112721
Category : Medical
Languages : en
Pages : 481

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Book Description
This volume connects current ideas and concepts about sleep functions and circadian rhythms with the search for novel target-selective sleep-wake therapeutics. To do so, it provides a timely, state-of-the-art overview of sleep-wake mechanisms in health and disease, ongoing developments in drug discovery, and their prospects for the clinical treatment of sleep-disordered patients. It particularly focuses on the concept that sleep and wakefulness mutually affect each other, and the future therapeutic interventions with either sleep- or wake-promoting agents that are expected to not only improve the quality of sleep but also the waking behavior, cognition, mood and other sleep-associated physiological functions. The chapter 'Sleep Physiology, Circadian Rhythms, Waking Performance and the Development of Sleep-Wake Therapeutics' available open access under a CC BY 4.0 license at link.springer.com