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Yıl:2022; Cilt: 9; Sayı: 3>> Özet
TAM METİN
Türk Uyku Tıbbı Dergisi; 2022;9(3):190-198
Adenozinin Uyku-Uyanıklık Döngüsündeki Etkileri
M Demeli, S Bayrak, B Pehlivanoğlu
Hacettepe Üniversitesi, Ankara,
Uyku ve uyanıklık tüm canlılarda gerçekleşen çok faktörlü, karmaşık ve çok iyi düzenlenen fizyolojik süreçlerdir. Uyku ve uyanıklığı etkileyen çevresel ve genetik faktörler, sirkadyen ritim ve günlük beyin aktivitesinin süresi ve yoğunluğu ile belirlenen döngüyü değiştirebilir. İyi bir uykunun sağlık için gerekliliği de göz önüne alındığında, spontan uyku-uyanıklık döngüsünü düzenleyen faktörlerin tanımlanmasının birçok uyku bozukluğunun önlenmesi, tanı ve tedavisi açısından önemi açıktır. Bunlardan endojen bir uyku faktörü olarak tanımlanan adenozinin hücre dışı konsantrasyonunun uzun süreli uyanıklık sırasında özellikle korteks ve bazal ön beyinde artarken, uyku sırasında azalması; ek olarak günlük yaşamda çok sık tüketilen kafeinin etkisini bu molekül üzerinden göstermesi uykunun homeostasisinde dikkate alınması gereken bir molekül olduğuna işaret etmektedir. Bu derlemede, birbirini takip eden uyku-uyanıklık döngüsünün düzenlenmesi ve adenozinin bu düzenlemedeki rolünü inceleyen çalışmalar özetlenmiştir.
Effects of Adenosine on the Sleep-Wake Cycle
Sleep and wakefulness are multifactorial, complex and well-regulated physiological processes that occur in all living things. Environmental and genetic factors that affect sleep and wakefulness can change the cycle determined by the circadian rhythm and the duration and intensity of daily brain activity. Considering the necessity of good sleep for health, it is clear that defining the factors that regulate the spontaneous sleepwake cycle is important for the prevention, diagnosis and treatment of many sleep disorders. The facts that the extracellular concentration of adenosine which is defined as an endogenous sleep factor increases during long-term wakefulness, especially in the cortex and basal forebrain, and decreases during sleep, and in addition, caffeine, which is frequently consumed in daily life, acts via this molecule, indicate that it is a molecule that should be considered in the homeostasis of sleep. In this review, studies examining the regulation of the sequential sleepwake cycle and the role of adenosine in this regulation are summarized.

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