Delayed sleep phase syndrome (DSPS) is characterized by a 3 to 6-hour delayed sleep schedule relative to the desired. The single nucleotide polymorphism (Ala129Thr) in Arylalkylamine N-acetyltransferase (AANAT), a rate-limiting enzyme in melatonin synthesis, has been identified in patients with delayed sleep phase disorder.
Category
Nervous system disease
Brite
Human diseases [BR:br08402]
Nervous system diseases
Other nervous and sensory system diseases
H00689 Delayed sleep phase syndrome
Human diseases in ICD-11 classification [BR:br08403]
07 Sleep-wake disorders
Circadian rhythm sleep-wake disorders
7A60 Delayed sleep-wake phase disorder
H00689 Delayed sleep phase syndrome