Enregistré dans:
| Auteur principal: | |
|---|---|
| Format: | Artículo científico |
| Langue: | en |
| Publié: |
International journal of molecular sciences
2024
|
| Sujets: | |
| Accès en ligne: | https://pubmed.ncbi.nlm.nih.gov/39796111/ |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1868266258127912961 |
|---|---|
| author | Dyachuk, Vyacheslav |
| author_facet | Dyachuk, Vyacheslav Dyachuk, Vyacheslav |
| collection | PubMed - marine biology |
| contents | The Role and Mechanisms of the Hypocretin System in Zebrafish (). Dyachuk, Vyacheslav Animals Zebrafish Orexins Orexin Receptors Sleep Neurons Humans Wakefulness Zebrafish Proteins Narcolepsy Sleep is the most important physiological function of all animals studied to date. Sleep disorders include narcolepsy, which is characterized by excessive daytime sleepiness, disruption of night sleep, and muscle weakness-cataplexy. Narcolepsy is known to be caused by the degeneration of orexin-synthesizing neurons (hypocretin (HCRT) neurons or orexin neurons) in the hypothalamus. In mammals, HCRT neurons primarily regulate the sleep/wake cycle, nutrition, reward seeking, and addiction development. The hypocretin system of the brain is involved in a number of neurological disorders. The distinctive pathologies associated with the disruption of HCRT neurons are narcolepsy and cataplexy, which are caused by the loss of hypocretin neurons that produce HCRT. In Danio, the hypocretin system is also involved in the regulation of sleep and wakefulness. It is represented by a single gene that encodes the peptides HCRT1 and HCRT2, as well as one HCRT receptor (HCRTR), which is structurally closest to the mammalian HCRTR2. The overexpression of the gene in larvae causes wakefulness, whereas the physical destruction of HCRT cells or a pharmacological blockade of the type 2 hypocretin receptor leads to fragmentation of sleep in fish larvae, which is also observed in patients with narcolepsy. These data confirm the evolutionary conservatism of the hypocretin system. Thus, is an ideal model for studying the functions of HCRT neural networks and their functions. |
| format | Artículo científico |
| id | pubmed_39796111 |
| institution | PubMed |
| language | en |
| publishDate | 2024 |
| publisher | International journal of molecular sciences |
| record_format | pubmed |
| spellingShingle | The Role and Mechanisms of the Hypocretin System in Zebrafish (). Dyachuk, Vyacheslav Animals Zebrafish Orexins Orexin Receptors Sleep Neurons Humans Wakefulness Zebrafish Proteins Narcolepsy The Role and Mechanisms of the Hypocretin System in Zebrafish (). Dyachuk, Vyacheslav Animals Zebrafish Orexins Orexin Receptors Sleep Neurons Humans Wakefulness Zebrafish Proteins Narcolepsy Sleep is the most important physiological function of all animals studied to date. Sleep disorders include narcolepsy, which is characterized by excessive daytime sleepiness, disruption of night sleep, and muscle weakness-cataplexy. Narcolepsy is known to be caused by the degeneration of orexin-synthesizing neurons (hypocretin (HCRT) neurons or orexin neurons) in the hypothalamus. In mammals, HCRT neurons primarily regulate the sleep/wake cycle, nutrition, reward seeking, and addiction development. The hypocretin system of the brain is involved in a number of neurological disorders. The distinctive pathologies associated with the disruption of HCRT neurons are narcolepsy and cataplexy, which are caused by the loss of hypocretin neurons that produce HCRT. In Danio, the hypocretin system is also involved in the regulation of sleep and wakefulness. It is represented by a single gene that encodes the peptides HCRT1 and HCRT2, as well as one HCRT receptor (HCRTR), which is structurally closest to the mammalian HCRTR2. The overexpression of the gene in larvae causes wakefulness, whereas the physical destruction of HCRT cells or a pharmacological blockade of the type 2 hypocretin receptor leads to fragmentation of sleep in fish larvae, which is also observed in patients with narcolepsy. These data confirm the evolutionary conservatism of the hypocretin system. Thus, is an ideal model for studying the functions of HCRT neural networks and their functions. |
| title | The Role and Mechanisms of the Hypocretin System in Zebrafish (). |
| topic | Animals Zebrafish Orexins Orexin Receptors Sleep Neurons Humans Wakefulness Zebrafish Proteins Narcolepsy |
| url | https://pubmed.ncbi.nlm.nih.gov/39796111/ |