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Hypoxia Disrupted Serotonin Levels in the Prefrontal Cortex and Striatum, Leading to Depression-like Behavior     
Yazarlar (5)
Hasan Caliskan
Balıkesir Üniversitesi, Türkiye
Koray Hamza Cihan
Ankara Üniversitesi, Türkiye
Dr. Öğr. Üyesi Seda KOÇAK Dr. Öğr. Üyesi Seda KOÇAK
Kırşehir Ahi Evran Üniversitesi, Türkiye
Gozde Karabulut
Kütahya Universitesi, Türkiye
Erhan Nalcaci
Ankara Üniversitesi, Türkiye
Devamını Göster
Özet
Hypoxia can adversely affect multiple organ systems. This study investigated the impact of intermittent hypoxia on serotonin levels and depression-like behaviors across distinct neuroanatomical regions. Sixteen adult female Wistar albino rats were divided into two groups: control (n = 8) and hypoxia (n = 8). The hypoxia group was exposed to a simulated altitude of 3000 for 5 h daily over 14 days. Behavioral assessments included locomotor activity (open field test) and depression-like behaviors (forced swimming test). Serotonin levels were quantified via ELISA in the prefrontal cortex, striatum, thalamus, hypothalamus, hippocampus, and serum. Intermittent hypoxia did not alter locomotor activity (p > 0.05) but significantly increased depression-like behavior (p < 0.05), accompanied by a pronounced reduction in swimming behavior (p < 0.0001), a marker associated with serotonergic function. Serotonin levels were significantly reduced in the prefrontal cortex (p < 0.005) and striatum (p < 0.05), while no changes were observed in other regions or serum (p > 0.05). These findings demonstrate that intermittent hypoxia induces depression-like behaviors and region-specific serotonin depletion, particularly in the prefrontal cortex and striatum. This underscores the need to evaluate hypoxia-related brain health implications in conditions such as sleep apnea and acute mountain sickness.
Anahtar Kelimeler
depression-like behaviors | forced swimming test | hypoxia | prefrontal cortex | serotonin | striatum
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Açık Erişim Biology
Dergi Tarandığı Indeksler
Dergi Grubu Q1
Makale Dili İngilizce
Basım Tarihi 07-2025
Cilt No 14
Sayı 8
Sayfalar 931 / 0
Doi Numarası 10.3390/biology14080931