title: Expression profiles of 10 circadian clock genes in human peripheral blood mononuclear cells.
abstract: The circadian clock system regulates daily rhythms of physiology and behavior. The mammalian master clock in the suprachiasmatic nuclei orchestrates these biological rhythms in peripheral tissues. Since blood is the most accessible tissue source, we sought to dissect the human circadian clock system by characterizing clock gene expression in human peripheral blood mononuclear cells (PBMCs) isolated from eight young, healthy subjects. By evaluating the temporal expression profiles of 10 circadian clock genes, we found that Period 1 (Per1), Per2, and Per3 are rhythmically expressed in human blood samples. Our results suggest that evaluating the rhythmic expression of human Per genes could reveal an individual's circadian phenotype.
authors.affiliation: Division of Neuropsychiatry, Department of Neuro and Locomotor Science, Akita University School of Medicine, Akita, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Kusanagi
authors.forename: Akiko
authors.initials: A
authors.lastname: Hida
authors.forename: Kohtoku
authors.initials: K
authors.lastname: Satoh
authors.forename: Masaru
authors.initials: M
authors.lastname: Echizenya
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Shimizu
authors.forename: Julie S
authors.initials: JS
authors.lastname: Pendergast
authors.forename: Shin
authors.initials: S
authors.lastname: Yamazaki
authors.forename: Kazuo
authors.initials: K
authors.lastname: Mishima
mesh_terms: D000328:Adult; D002940:Circadian Rhythm / Q000235:genetics*; D015870:Gene Expression; D020869:Gene Expression Profiling; D006801:Humans; D007963:Leukocytes, Mononuclear / Q000502:physiology*; D008297:Male; D012333:RNA, Messenger / Q000032:analysis; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D012333:RNA, Messenger