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

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

Phyllis C. Zee

(2016)

Additional Information

Book Details

Abstract

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!

Table of Contents

Section Title Page Action Price
Front Cover Cover
Science of Circadian Rhythms\r i
Copyright\r ii
PROGRAM OBJECTIVE iii
TARGET AUDIENCE iii
LEARNING OBJECTIVES iii
ACCREDITATION iii
DISCLOSURE OF CONFLICTS OF INTEREST iii
UNAPPROVED/OFF-LABEL USE DISCLOSURE iii
TO ENROLL iv
METHOD OF PARTICIPATION iv
CME INQUIRIES/SPECIAL NEEDS iv
SLEEP MEDICINE CLINICS\r v
FORTHCOMING ISSUES v
March 2016 v
June 2016 v
September 2016 v
RECENT ISSUES v
September 2015 v
June 2015 v
March 2015 v
Contributors vii
CONSULTING EDITOR vii
EDITOR vii
AUTHORS vii
Contents ix
Preface: Circadian Clocks: Implication for Health and Disease\r ix
Neurobiology of Circadian Rhythm Regulation\r ix
Genetics of Circadian Rhythms\r ix
Aging and Circadian Rhythms\r ix
Effect of Light and Melatonin and Other Melatonin Receptor Agonists on Human Circadian Physiology\r ix
Consequences of Circadian Disruption on Cardiometabolic Health\r x
Consequences of Circadian Disruption on Neurologic Health\r x
Circadian Disruption in Psychiatric Disorders\r x
Non–24-Hour Sleep–Wake Rhythm Disorder in Sighted and Blind Patients\r x
Irregular Sleep-Wake Rhythm Disorder\r xi
Jet Lag and Shift Work Disorder\r xi
Preface: Circadian Clocks: Implication for Health and Disease \r xiii
Neurobiology of Circadian Rhythm Regulation 403
Key points 403
IDENTIFICATION OF THE SUPRACHIASMATIC NUCLEUS CIRCADIAN PACEMAKER 403
SUPRACHIASMATIC NUCLEUS: A NETWORK OF CLOCK CELLS 403
MOLECULAR BASIS OF THE SUPRACHIASMATIC NUCLEUS CIRCADIAN PACEMAKER 404
FUNCTIONAL ARCHITECTURE OF THE SUPRACHIASMATIC NUCLEUS 404
LIGHT INPUT TO THE SUPRACHIASMATIC NUCLEUS: THE RETINOHYPOTHALAMIC TRACT 405
OTHER FUNCTIONAL INPUTS TO THE SUPRACHIASMATIC NUCLEUS 406
SUPRACHIASMATIC NUCLEUS OUTPUT PATHWAYS 407
MULTIOSCILLATOR NATURE OF THE CIRCADIAN SYSTEM 407
THE CIRCADIAN TIMING SYSTEM IN HEALTH AND DISEASE 408
SUMMARY 409
REFERENCES 409
Genetics of Circadian Rhythms 413
Key points 413
INTRODUCTION 413
THE MOLECULAR CLOCK 413
The Drosophila Molecular Clock 414
The Mammalian Molecular Clock 414
Posttranslational Modifications 415
MOLECULAR CLOCKS DRIVE PHYSIOLOGIC OUTPUT IN MULTICELLULAR ORGANISMS 415
Neural Circadian Networks 415
Peripheral Tissues 416
ENTRAINMENT OF THE CLOCK 416
Light Entrainment 416
Food 416
DYSREGULATION OF CLOCK AND DISEASE STATES 417
Sleep 417
Metabolism 417
Cancer 418
Immune 418
Treatments 419
REFERENCES 419
Aging and Circadian Rhythms 423
Key points 423
INTRODUCTION 423
Earlier Sleep Timing and Reduced Sleep Consolidation with Age 423
Circadian Timing System Regulates Sleep Timing and Consolidation 423
Methods for Assessing Human Circadian Rhythms 424
EVIDENCE FOR CIRCADIAN CHANGES IN AGING IN HUMANS 425
Circadian Phase 425
Phase of Entrainment 425
Circadian Amplitude 426
Circadian-Sleep Interaction 426
Circadian Period 426
Response to Light 427
Light Transmission 427
Suprachiasmatic Nucleus 428
Clock Gene Expression 428
Circadian Rhythm Sleep-Wake Disorders 428
SUMMARY 428
ACKNOWLEDGMENTS 428
REFERENCES 428
Effect of Light and Melatonin and Other Melatonin Receptor Agonists on Human Circadian Physiology 435
Key points 435
INTRODUCTION 435
THE CENTRAL CIRCADIAN SYSTEM 436
PATIENT EVALUATION OVERVIEW AND SAFETY CONSIDERATIONS 437
USING LIGHT TO SHIFT CIRCADIAN TIMING 440
Timing of Light 440
Intensity of Light 442
Duration of Light 442
Color and Wavelength of Light 442
PRACTICAL ASPECTS OF LIGHT TREATMENT 443
Light Outdoors 443
Light Boxes 443
Dawn Simulators and Light Masks 443
Light Visors and Light Glasses 444
Light Avoidance 446
Light/Dark Scheduling 446
USING MELATONIN AND OTHER MELATONIN RECEPTOR AGONISTS TO SHIFT CIRCADIAN TIMING 446
Timing of Melatonin 446
Dose of Melatonin 447
Formulation and Melatonin Agonists 447
PRACTICAL ASPECTS OF MELATONIN AND OTHER MELATONIN AGONIST TREATMENT 447
Melatonin Preparations 447
Melatonin Administration 448
Melatonin and Light Combination Treatment 448
EVALUATION OF OUTCOME 448
SUMMARY 449
ACKNOWLEDGMENTS 449
REFERENCES 449
Consequences of Circadian Disruption on Cardiometabolic Health 455
Key points 455
INTRODUCTION 455
OBSERVATIONAL STUDIES OF SHIFT WORK 455
EXPERIMENTAL CIRCADIAN DISRUPTION 456
OBSERVATIONAL STUDIES OF MILDER CIRCADIAN DISRUPTION 457
POTENTIAL MEDIATORS LINKING EVENING CHRONOTYPE OR SHIFT WORK AND CARDIOMETABOLIC DISEASE 460
Sleep 460
Meal Timing 461
Light at Night 464
SUMMARY 464
REFERENCES 465
Consequences of Circadian Disruption on Neurologic Health 469
Key points 469
INTRODUCTION 469
CIRCADIAN DISRUPTION IN CEREBROVASCULAR DISEASE 469
Circadian Cardiovascular Rhythms 470
Circadian Variation in Stroke Onset 470
Clock Genes and Cardiovascular Function 470
CIRCADIAN RHYTHMS IN AGING AND NEURODEGENERATION 471
CIRCADIAN RHYTHMS IN PARKINSON DISEASE 471
Diurnal Rhythms of Clinical Features in Parkinson Disease 471
Markers of Circadian System in Parkinson Disease 472
CIRCADIAN RHYTHMS IN HUNTINGTON DISEASE 473
Markers of Circadian System in Huntington Disease 474
Circadian Homeostasis in Animal Models of Huntington disease 474
CIRCADIAN RHYTHMS IN ALZHEIMER DISEASE 474
Circadian Disruption in Alzheimer Disease: Pathophysiology 474
Markers of Circadian System in Alzheimer Disease 475
Sleep and Circadian Function–Alzheimer Disease: Bidirectional Relationship? 475
SUMMARY 475
REFERENCES 475
Circadian Disruption in Psychiatric Disorders 481
Key points 481
INTRODUCTION 481
CIRCADIAN SYSTEM: A BRIEF OVERVIEW 481
Molecular Mechanisms of Clock Function 482
Inputs and Outputs 483
EVIDENCE OF CIRCADIAN DISORDER: EVIDENCE FROM THE CLINICAL PHENOTYPE 483
Sleep and Endocrine Regulation 484
Major depression 484
Bipolar disorder 484
Schizophrenia 485
Evidence from the Phenotype: Gene Expression Analyses in Brain and Peripheral Tissues 486
Evidence from Treatment 486
Genetic Contribution to Psychiatric Illness 488
Genetics of complex disorders 488
Genetic evidence from genome-wide association, linkage, and candidate gene analyses 488
SUMMARY 489
REFERENCES 490
Non–24-Hour Sleep–Wake Rhythm Disorder in Sighted and Blind Patients 495
Key points 495
NON–24-HOUR SLEEP–WAKE RHYTHM DISORDER (FREE-RUNNING DISORDER, NONENTRAINED DISORDER, HYPERNYCHTHEMERAL SYNDROME) 495
CLINICAL CHARACTERISTICS OF NON–24-HOUR SLEEP–WAKE RHYTHM DISORDER IN SIGHTED PATIENTS 496
Clinical Features 496
Sleep Features 496
Circadian Rhythm Features 500
Psychiatric Features 500
CLINICAL CHARACTERISTICS OF NON–24-HOUR SLEEP–WAKE RHYTHM DISORDER IN BLIND PATIENTS 500
Clinical Features 501
Sleep Features 501
Circadian Rhythm Features 503
Psychiatric Features 503
BIOLOGICAL BASIS AND PATHOGENESIS OF NON–24-HOUR SLEEP–WAKE RHYTHM DISORDER 504
Phase Angle Difference Between the Circadian Pacemaker and Sleep–Wake Cycle 504
Decreased Circadian Phase Resetting Response to Light 505
Longer Endogenous Circadian Period 505
TREATMENT STRATEGIES FOR NON–24-HOUR SLEEP–WAKE RHYTHM DISORDER 507
Light Therapy 507
Melatonin Treatment 509
Melatonin Agonist Treatment 511
Other Compounds 512
SUMMARY 512
DISCLOSURE STATEMENT 512
REFERENCES 512
Irregular Sleep-Wake Rhythm Disorder 517
Key points 517
INTRODUCTION: NATURE OF THE PROBLEM 517
THERAPEUTIC OPTIONS AND OUTCOMES 519
COMPLICATIONS AND CONCERNS 521
SUMMARY 521
REFERENCES 521
Jet Lag and Shift Work Disorder 523
Key points 523
INTRODUCTION 523
GENERAL THERAPEUTIC APPROACHES 524
JET LAG DISORDER 524
Traveling East 525
Traveling West 526
Other Treatment Considerations for Jet Lag Disorder 526
SHIFT WORK DISORDER 527
Sleep Hygiene 529
Circadian Realignment 529
Bright Light 530
Melatonin Administration 530
Compromise Phase Position 530
Caffeine and Napping 530
Hypnotics 530
Modafinil and Armodafinil 530
CONSIDERATIONS WHEN USING BRIGHT LIGHT OR EXOGENOUS MELATONIN 531
DISCUSSION 531
REFERENCES 532