Related Experiment Video
Updated: Jun 26, 2026
04:33
Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
Published on: April 26, 2024
Disrupted sleep and circadian patterns in frontotemporal dementia.
K N Anderson1, C Hatfield, C Kipps
1Regional Centre for Neurosciences, Newcastle General Hospital, Newcastle-upon-tyne, UK. kirstie.anderson@nuth.nhs.uk
European Journal of Neurology
|January 28, 2009
Summary
Frontotemporal dementia (FTD) patients exhibit significant sleep/wake disturbances, including increased nighttime activity and reduced sleep efficiency. These sleep patterns differ from those observed in Alzheimer's disease (AD) and may aid in early diagnosis.
Area of Science:
- Neuroscience
- Sleep Medicine
- Neurology
Background:
- Investigating sleep/wake patterns in frontotemporal dementia (FTD).
- Understanding the progression of sleep disturbances in FTD patients.
Purpose of the Study:
- To characterize sleep/wake disturbances in frontotemporal dementia (FTD).
- To compare sleep patterns in FTD with normal controls and Alzheimer's disease (AD).
- To explore the potential of sleep disturbances as a diagnostic marker for FTD.
Main Methods:
- Utilized sleep diaries and prolonged actigraphy for 13 FTD patients.
- Compared FTD data with age/sex-matched normal controls.
- Compared FTD data with patients diagnosed with probable Alzheimer's disease (AD).
Main Results:
- Significant sleep/wake disturbances were observed in FTD patients throughout the illness course.
- FTD patients displayed increased nocturnal activity and decreased morning activity, suggesting potential phase delay.
- Sleep diary data revealed reduced sleep efficiency and total sleep time in all FTD subjects, differing from AD patterns.
Conclusions:
- Significant sleep disturbances are present in non-institutionalized FTD patients.
- Early sleep disturbance patterns may assist in differentiating FTD from AD.
- Sleep monitoring offers a potential tool for early FTD diagnosis and differentiation.
Related Concept Videos
02:19Circadian Rhythms and Gene Regulation
The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent years,...
01:15Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response
Circadian rhythms are cyclic changes that are crucial in plasma drug concentrations. Various standard circadian parameters, including core body temperature, heart rate, and other cardiovascular factors, directly impact disease states and the therapeutic response to drug therapy.
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
01:13Insufficient Sleep and Sleep Deprivation
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...
Sleep deprivation is a more severe form of sleep loss...
01:15REM Sleep Behavior Disorder
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...
01:24Substance Use Disorders Affecting Sleep
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,...
Understanding the concepts of physical dependence,...
01:19Management of Insomnia
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...