Related Experiment Video
Updated: Apr 25, 2026
08:44
Electrocorticographic Recording of Cerebral Cortex Areas Manipulated Using an Adeno-Associated Virus Targeting Cofilin in Mice
Published on: February 21, 2021
4.3K
[Astrocytes and sleep: from genes to networks]
1Interactions neurogliales dans la physiologie et les maladies cérébrales, Centre de recherche interdisciplinaire en biologie, Collège de France, CNRS UMR 7241, INSERM U1050, Université PSL, PSL-NEURO, Paris, France.
Medecine Sciences : M/S
|April 24, 2026
Summary
Astrocytes, crucial brain cells, regulate sleep through complex mechanisms like gene expression and cell communication. Understanding these astrocyte functions offers potential for new sleep disorder treatments.
Area of Science:
- Neuroscience
- Cell Biology
- Sleep Science
Background:
- Astrocytes are glial cells in the central nervous system.
- They are critical for synaptic activity and sleep regulation.
- Recent technological advances offer new insights into astrocytic functions.
Purpose of the Study:
- To review the mechanisms by which astrocytes regulate sleep.
- To highlight the role of transcriptomic and morphological changes.
- To discuss the involvement of gliotransmission in sleep.
Main Methods:
- Review of recent literature.
- Analysis of genetic engineering, neuroimaging, and molecular biology studies.
- Synthesis of findings on astrocytic regulation of sleep.
Main Results:
- Astrocytes influence sleep through transcriptomic alterations.
- Morphological changes in astrocytes impact sleep.
- Gliotransmission is a key mechanism for astrocyte-mediated sleep regulation.
Conclusions:
- Astrocytic functions are integral to sleep physiology.
- A deeper understanding refines sleep regulation models.
- Targeting astrocyte-dependent pathways may lead to novel sleep therapies.
Related Concept Videos
02:19Circadian Rhythms and Gene Regulation
3.4K
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...
3.4K
02:19Circadian Rhythms and Gene Regulation
2.1K
2.1K
01:11Understanding Sleep
1.7K
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...
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...
1.7K
01:25Overview of Synapses
10.8K
A synapse is a specialized structure where two neurons connect, allowing them to pass an electrical or chemical signal to another neuron. It is the point of communication between neurons. The term "synapse" is derived from the Greek word "synapsis," which means "conjunction." The entire process of neural communication revolves around the synapse. When activated, a neuron releases chemicals known as neurotransmitters into the synapse. These neurotransmitters cross the synapse and bind to...
10.8K
01:24Sleep-Wake Cycles
2.9K
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:
2.9K
01:22Stages of Sleep
1.6K
Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
1.6K