title: [Hematological investigations in conditions of long-term space flights].
abstract: In the nearly 15-month mission aboard MIR the cosmonaut-physician and members of three crews (MIR-15, -16, and -17) carried out a program of hematological investigations. Most of the changes related to the red blood system and included reduction in hemoglobin and hematocrit. Erythrocytes had decreased concentration and took on abnormal forms. There were also signs of altered metabolism of erythrocytes. Of interest are phase-by-phase variations in the levels of erythrocytes in the course of long-term stay in microgravity, and absence of a convincing correlation between hemoglobin, erythrocyte and hematocrit levels. But for lymphocytosis that returned to the norm already on the first day of recovery, no material changes occurred to the leukocyte profile. Investigations at the landing site displayed erythropenia, decreased reticulocytes and ensuing reticulocyte reaction, and gradual regain of the erythrocyte number that can be viewed as a normal physiological reaction of the blood system to the set of factors of spaceflight and early readaptation. Besides, the investigations showed a large individually of blood reactions to prolonged stay in space flight.
authors.forename: V V
authors.initials: VV
authors.lastname: Poliakov
authors.forename: S M
authors.initials: SM
authors.lastname: Ivanova
authors.forename: V B
authors.initials: VB
authors.lastname: Noskov
authors.forename: O I
authors.initials: OI
authors.lastname: Labetskaia
authors.forename: Iu V
authors.initials: IuV
authors.lastname: Iarlykova
authors.forename: V V
authors.initials: VV
authors.lastname: Karashtin
authors.forename: V I
authors.initials: VI
authors.lastname: Legen'kov
authors.forename: T G
authors.initials: TG
authors.lastname: Sarycheva
authors.forename: Z G
authors.initials: ZG
authors.lastname: Shishkanova
authors.forename: G I
authors.initials: GI
authors.lastname: Kozinets
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology; D000337:Aerospace Medicine; D018480:Astronauts; D004906:Erythrocyte Count; D004909:Erythrocyte Indices / Q000502:physiology*; D004910:Erythrocyte Membrane / Q000378:metabolism / Q000648:ultrastructure; D004912:Erythrocytes / Q000378:metabolism* / Q000648:ultrastructure; D005500:Follow-Up Studies; D006400:Hematocrit; D006454:Hemoglobins / Q000378:metabolism*; D006801:Humans; D007962:Leukocytes / Q000166:cytology; D008297:Male; D013026:Space Flight; D014893:Weightlessness
chemical_list: D006454:Hemoglobins
vernacular_title: Gematologicheskie issledovaniia v usloviiakh dlitel'nykh kosmicheskikh poletov.