Erschienen in:
31.05.2023 | Miscellaneous
Degenerative changes induced by paradoxical sleep deprivation in rat sublingual glands
verfasst von:
Gabriel Carvalhal de Aguiar, Ana Carolina Flygare Souza, Daniel Vitor de Souza, Marcos Monico Neto, Luciana Le Sueur-Maluf, Andrea Cristina de Moraes Malinverni, Hanna Karen Moreira Antunes, Daniel Araki Ribeiro
Erschienen in:
European Archives of Oto-Rhino-Laryngology
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Ausgabe 9/2023
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Abstract
Purpose
The aim of this study was to evaluate whether sleep deprivation can induce degenerative changes in rat sublingual glands.
Methods
For this purpose, a total of 24 males were distributed into three groups: control (n = 8), in which the animals were not subjected to any procedure; sleep deprivation (n = 8) in which the animals were submitted to sleep deprivation for 96 h; recovery (n = 8), in which the animals were subjected to paradoxical sleep deprivation for 96 consecutive hours followed by 96 h without intervention. Morphological changes in sublingual glands as well as the immunoexpressions of some proteins, such as Ki-67, p16, cleaved caspase-3 and BCL-2 were investigated in this setting.
Results
The results showed that paradoxical sleep deprivation induced tissue degeneration as a result of the presence of pyknosis, vacuoles and areas of salivary retention, in the experimental groups. Expression of cleaved caspase 3 and BCL-2 were increased in both sleep deprivation and recovery groups. The analysis of Ki-67 showed an increase in expression only in the recovery group, associated with a decrease in p16 levels.
Conclusion
Sleep deprivation can induce a degenerative process in the parenchyma of sublingual gland by means of dysregulation of apoptosis associated with proliferative activity.