title: Circadian reference data for men in fifth decade of life.
abstract: These results are meant to serve as chrono-biologically-defined reference values for healthy adult men in their fifth decade of life. A thorough statistical analysis of these data is being prepared for presentation elsewhere. A rigorous comparison with results obtained when these same men were in their 20's and again in their 30's may help us to document the kinds and extent of changes in circadian rhythm characteristics (MESOR, amplitude and/or acrophase) which may occur with aging.
authors.affiliation: Nuclear Medicine Service, V.A. Hospital, Hines, IL 60141.
authors.forename: E L
authors.initials: EL
authors.lastname: Kanabrocki
authors.forename: R B
authors.initials: RB
authors.lastname: Sothern
authors.forename: L E
authors.initials: LE
authors.lastname: Scheving
authors.forename: D L
authors.initials: DL
authors.lastname: Vesely
authors.forename: T H
authors.initials: TH
authors.lastname: Tsai
authors.forename: J
authors.initials: J
authors.lastname: Shelstad
authors.forename: C
authors.initials: C
authors.lastname: Cournoyer
authors.forename: J
authors.initials: J
authors.lastname: Greco
authors.forename: H
authors.initials: H
authors.lastname: Mermall
authors.forename: B M
authors.initials: BM
authors.lastname: Nemchausky
mesh_terms: D000328:Adult; D001769:Blood / Q000378:metabolism; D001772:Blood Cell Count; D002940:Circadian Rhythm / Q000502:physiology*; D006801:Humans; D006854:Hydrocortisone / Q000378:metabolism; D008297:Male; D008550:Melatonin / Q000378:metabolism; D008875:Middle Aged; D012016:Reference Values
chemical_list: D008550:Melatonin; D006854:Hydrocortisone