A Length Polymorphism in the Circadian Clock Gene Per3 is Linked to Delayed Sleep Phase Syndrome and Extreme Diurnal Preference

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ID: 307478
2003
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Abstract
To investigate the link between extreme diurnal preference, delayed sleep phase syndrome, and a length polymorphism in Per3. Subjects were genotyped using polymerase chain reaction. Subjects with defined diurnal preference as determined by the Horne-Östberg questionnaire and patients with delayed sleep phase syndrome. The Per3 polymorphism correlated significantly with extreme diurnal preference, the longer allele associating with morningness and the shorter allele with eveningness. The shorter allele was strongly associated with the delayed sleep phase syndrome patients, 75% of whom were homozygous. The length of the Per3 repeat region identifies a potential genetic marker for extreme diurnal preference.
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Authors Simon Archer, Donna L. Robilliard, Debra J. Skene, Marcel G. Smits, Adrian Williams, Joséphine Arendt, Malcolm von Schantz
Journal Sleep & breathing = Schlaf & Atmung
Year 2003
DOI
10.1093/sleep/26.4.413
URL
https://academic.oup.com/sleep/article-pdf/26/4/413/13662136/sleep-26-4-413.pdf
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