title: [The influence of circadian rhythms of geomagnetic field variations and the background cosmic radiation on nitric oxide production in human organism].
abstract: The circadian rhythms of background gamma-radiation and Ki-indexes of geomagnetic activity (GMF) during August-September 2008, January-February 2010 and March 2011 were studied. The authors show that in summer period the maximum of Ki-indexes and gamma-radiation were at 3 p.m. of local time. In winter these maximums were shifted at more last time. It was suggested that an organism produces the own free radicals as nitric oxide to neutralize radicals from background radiation. They are formed during decay of neutrophiles when GMF-activity falls. On the other side, the production of NO is regulated by melatonin synthesis which has a circadian rhythm.
authors.forename: V A
authors.initials: VA
authors.lastname: Iamshanov
authors.forename: V K
authors.initials: VK
authors.lastname: Koshelevskiĭ
mesh_terms: D000818:Animals; D001417:Background Radiation; D002940:Circadian Rhythm / Q000528:radiation effects*; D003359:Cosmic Radiation; D005500:Follow-Up Studies; D006801:Humans; D009504:Neutrophils / Q000378:metabolism* / Q000528:radiation effects; D009569:Nitric Oxide / Q000096:biosynthesis* / Q000528:radiation effects*; D051381:Rats; D012189:Retrospective Studies; D012621:Seasons
chemical_list: D009569:Nitric Oxide