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Article

The 3111T/C polymorphism of hClock is associated with evening preference and delayed sleep timing in a Japanese population sample.

American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics - 5 Feb 2005

Mishima Kazuo, Tozawa Takuma, Satoh Kohtoku, Saitoh Hidetomo, Mishima Yumiko

Abstract excerpt

Sleep timing is influenced by the circadian system. Morningness-eveningness (ME) preference in humans is affected by the free-running period, which is determined by circadian clock-relevant genes. In this study, we investigated association between the 3111T/C polymorphism in the 3'-flanking region of hClock (Homo sapiens Clock homolog) and ME preference in 421 Japanese subjects. The Horne-Ostberg ME questionnaire...

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Identifiers

PMID: 15578592
DOI: 10.1002/ajmg.b.30110

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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The 3111T/C polymorphism of hClock is associated with evening preference and delayed sleep timing in a Japanese population sample.PMID 15578592Read ↗

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