title: [Hormonal regulation of calcium metabolism after space flights of different duration].
abstract: This paper presents the results of examinations of 19 cosmonauts, 12 of whom made 7-day flights and 7 took part in space flights of 150, 211 or 237 days. In plasma, parathyrin, calcitonin and gastrin concentrations were measured. A complex mosaic of hormonal regulation of bone metabolism reflects multifactorial and flexible patterns of calcium homeostasis, with individual variations included. It is probable that the specific weight of different components of the system maintaining calcium homeostasis varies depending on the exposure time and activity of related regulatory systems.
authors.forename: L G
authors.initials: LG
authors.lastname: Pozharskaia
authors.forename: V B
authors.initials: VB
authors.lastname: Noskov
mesh_terms: D000337:Aerospace Medicine; D015519:Bone Density / Q000502:physiology; D001842:Bone and Bones / Q000378:metabolism; D002116:Calcitonin / Q000502:physiology*; D002118:Calcium / Q000378:metabolism*; D005755:Gastrins / Q000502:physiology*; D006706:Homeostasis / Q000502:physiology; D006801:Humans; D010281:Parathyroid Hormone / Q000502:physiology*; D013026:Space Flight; D013997:Time Factors; D014586:USSR
chemical_list: D005755:Gastrins; D010281:Parathyroid Hormone; D002116:Calcitonin; D002118:Calcium
vernacular_title: Gormonal'nye reguliatory metabolizma kal'tsiia posle kosmicheskikh poletov razlichnoĭ prodolzhitel'nosti.