Related Experiment Video
Updated: Apr 21, 2026

08:58
Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice
Published on: June 19, 2019
10.7K
[Moebius syndrome and narcolepsy]
S Krämer1, U Goldammer, E Sindern
1Neurologische Klinik des Diakoniekrankenhauses Friederikenstift, Humboldtstr. 5, 30169, Hannover, Deutschland, stefan_kraemer87@me.com.
Der Nervenarzt
|November 13, 2014
Summary
Moebius syndrome patients frequently experience parasomnias. This case highlights narcolepsy cataplexy in Moebius syndrome, emphasizing detailed parasomnia diagnosis through hypocretin levels.
Area of Science:
- Neurology
- Sleep Medicine
Context:
- Moebius syndrome is a rare neurological disorder.
- A frequent association exists between Moebius syndrome and parasomnias.
Purpose:
- To report a case of Moebius syndrome presenting with narcolepsy cataplexy syndrome.
- To illustrate the diagnostic process for parasomnia in Moebius syndrome.
Summary:
- A patient with Moebius syndrome exhibited narcolepsy cataplexy symptoms.
- Cranial MRI revealed brainstem hypoplasia, a morphological correlate of Moebius syndrome.
- Diagnosis was confirmed by cognitive tests, polysomnography, and low cerebrospinal fluid hypocretin levels (132 pg/ml).
- Despite normal sleep onset latency and limited REM episodes, the diagnosis was established.
Impact:
- Highlights the importance of thorough parasomnia evaluation in Moebius syndrome patients.
- Demonstrates the utility of hypocretin level measurement in diagnosing narcolepsy cataplexy.
- Contributes to understanding the neurological underpinnings of sleep disorders in rare genetic conditions.
Related Concept Videos
Narcolepsy
848
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.
848
Sleep-Wake Cycles
3.5K
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:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
3.5K
REM Sleep Behavior Disorder
2.8K
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...
RBD is significantly associated with...
2.8K
Management of Insomnia
807
The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
807
Sedatives and Hypnotics Drugs: Miscellaneous Agents
955
Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
955
Sleepwalking and Sleep Talking
1.7K
Somnambulism, commonly known as sleepwalking, involves individuals engaging in activities ranging from simple walking to more complex behaviors such as driving. Sleepwalking typically occurs during the slow-wave sleep stages 3 and 4 early in the night when the person is not dreaming, contradicting the myth that sleepwalkers are acting out their dreams.
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...
1.7K

