title: Chronomics, neuroendocrine feedsidewards and the recording and consulting of nowcasts--forecasts of geomagnetics.
abstract: A multi-center four-hourly sampling of many tissues for 7 days (00:00 on April 5-20:00 to April 11, 2004), on rats standardized for 1 month in two rooms on antiphasic lighting regimens happened to start on the day after the second extremum of a moderate double magnetic storm gauged by the planetary geomagnetic Kp index (which at each extremum reached 6.3 international [arbitrary] units) and by an equatorial index Dst falling to -112 and -81 nT, respectively, the latter on the first day of the sampling. Neuroendocrine chronomes (specifically circadian time structures) differed during magnetically affected and quiet days. The circadian melatonin rhythm had a lower MESOR and lower circadian amplitude and tended to advance in acrophase, while the MESOR and amplitude of the hypothalamic circadian melatonin rhythm were higher during the days with the storm. The circadian parameters of circulating corticosterone were more labile during the days including the storm than during the last three quiet days. Feedsidewards within the pineal-hypothalamic-adrenocortical network constitute a mechanism underlying physiological and probably also pathological associations of the brain and heart with magnetic storms. Investigators in many fields can gain from at least recording calendar dates in any publication so that freely available information on geomagnetic, solar and other physical environmental activity can be looked up. In planning studies and before starting, one may gain from consulting forecasts and the highly reliable nowcasts, respectively.
authors.affiliation: University Pécs, Pécs, Hungary.
authors.forename: R
authors.initials: R
authors.lastname: Jozsa
authors.forename: F
authors.initials: F
authors.lastname: Halberg
authors.forename: G
authors.initials: G
authors.lastname: Cornélissen
authors.forename: M
authors.initials: M
authors.lastname: Zeman
authors.forename: J
authors.initials: J
authors.lastname: Kazsaki
authors.forename: V
authors.initials: V
authors.lastname: Csernus
authors.forename: G S
authors.initials: GS
authors.lastname: Katinas
authors.forename: H W
authors.initials: HW
authors.lastname: Wendt
authors.forename: O
authors.initials: O
authors.lastname: Schwartzkopff
authors.forename: K
authors.initials: K
authors.lastname: Stebelova
authors.forename: K
authors.initials: K
authors.lastname: Dulkova
authors.forename: S M
authors.initials: SM
authors.lastname: Chibisov
authors.forename: M
authors.initials: M
authors.lastname: Engebretson
authors.forename: W
authors.initials: W
authors.lastname: Pan
authors.forename: G A
authors.initials: GA
authors.lastname: Bubenik
authors.forename: G
authors.initials: G
authors.lastname: Nagy
authors.forename: M
authors.initials: M
authors.lastname: Herold
authors.forename: R
authors.initials: R
authors.lastname: Hardeland
authors.forename: G
authors.initials: G
authors.lastname: Hüther
authors.forename: B
authors.initials: B
authors.lastname: Pöggeler
authors.forename: R
authors.initials: R
authors.lastname: Tarquini
authors.forename: F
authors.initials: F
authors.lastname: Perfetto
authors.forename: R
authors.initials: R
authors.lastname: Salti
authors.forename: A
authors.initials: A
authors.lastname: Olah
authors.forename: N
authors.initials: N
authors.lastname: Csokas
authors.forename: P
authors.initials: P
authors.lastname: Delmore
authors.forename: K
authors.initials: K
authors.lastname: Otsuka
authors.forename: E E
authors.initials: EE
authors.lastname: Bakken
authors.forename: J
authors.initials: J
authors.lastname: Allen
authors.forename: C
authors.initials: C
authors.lastname: Amory-Mazaudin
mesh_terms: D000818:Animals; D002909:Chronobiology Phenomena; D002940:Circadian Rhythm; D004574:Electromagnetic Fields; D005246:Feedback; D007031:Hypothalamus / Q000378:metabolism; D008029:Lighting; D008550:Melatonin / Q000378:metabolism; D009490:Neurosecretory Systems / Q000502:physiology*; D010870:Pineal Gland / Q000378:metabolism; D051381:Rats; D017208:Rats, Wistar; D019445:Solar Activity
chemical_list: D008550:Melatonin