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Related Concept Videos

Narcolepsy01:07

Narcolepsy

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Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
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Sleep-Wake Cycles01:24

Sleep-Wake Cycles

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Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
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Substance Use Disorders Affecting Sleep01:24

Substance Use Disorders Affecting Sleep

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Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
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Understanding Sleep01:11

Understanding Sleep

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Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
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REM Sleep Behavior Disorder01:15

REM Sleep Behavior Disorder

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REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
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Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

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Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
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Sleep Disorders in dogs: A Pathophysiological and Clinical Review.

Alejandra Mondino1, Luis Delucchi2, Adam Moeser3

  • 1Department of Anesthesiology, University of Michigan, Ann Arbor, MI, USA; Laboratorio de Neurobiología del Sueño, Departamento de Fisiología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay; Unidad de Neurología, Departamento de Patología y Clínica de Pequeños Animales, Universidad de la República, Montevideo, Uruguay.

Topics in Companion Animal Medicine
|February 8, 2021
PubMed
Summary

This review explores canine sleep disorders, including narcolepsy and REM sleep behavior disorder. Understanding these conditions is crucial for improving dog health and well-being.

Keywords:
REM sleepnarcolepsysleep apneasleep disorderssleep neurobiology

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Area of Science:

  • Veterinary Neurology
  • Sleep Medicine
  • Canine Health

Background:

  • Sleep is vital for mammalian physiological functions, impacting cognition, immunity, and pain perception.
  • Sleep disturbances in dogs are linked to impaired performance, increased disease risk, and worsened clinical signs.
  • Common canine sleep disorders include narcolepsy, REM sleep behavior disorder, and sleep breathing disorders.

Purpose of the Study:

  • To review the pathophysiology of canine sleep disorders by examining sleep-wake promoting systems.
  • To discuss clinical characteristics, diagnostic methods, and current treatments for common sleep disorders in dogs.
  • To identify knowledge gaps and suggest future research directions for improved canine sleep disorder management.

Main Methods:

  • Literature review of scientific articles on canine sleep and wakefulness systems.
  • Analysis of pathophysiological mechanisms underlying common sleep disorders in dogs.
  • Synthesis of clinical information on diagnosis and treatment strategies.

Main Results:

  • Dysfunction in sleep-wake promoting systems explains the pathophysiology of canine sleep disorders.
  • Narcolepsy, REM sleep behavior disorder, and sleep breathing disorders are frequent in dogs.
  • Current diagnostic tools and treatments are available but require further refinement.

Conclusions:

  • Understanding the interplay of sleep-wake systems is key to diagnosing and treating canine sleep disorders.
  • Further research is needed to enhance the prevention and treatment of sleep disturbances in dogs.
  • Improved management of canine sleep disorders can significantly benefit their overall health and quality of life.