title: [Characteristics of bone tissue of rats after flight aboard biosputnik Kosmos-1129].
abstract: Bones of rats flown for 19 days onboard Cosmos-1129 were examined. The examination included bone mass, density, mineral composition, reconstruction parameters, and elemental composition at R + 1, R + 6, and R + 29. After flight the rats developed osteoporosis in the spongy structures of tubular bones and a smaller thickness of the cortical layer of the diaphysis; they showed no mineralization of the microstructures, a slight decrease of the Ca concentration, and a normal content of P. At R + 6 these changes progressively developed and at R + 29 they returned to normal.
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000378:metabolism / Q000473:pathology*; D002118:Calcium / Q000378:metabolism; D006112:Gravitation; D010024:Osteoporosis / Q000209:etiology* / Q000473:pathology; D010758:Phosphorus / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains; D013026:Space Flight; D013997:Time Factors; D014893:Weightlessness / Q000009:adverse effects
chemical_list: D010758:Phosphorus; D002118:Calcium
vernacular_title: Kharakteristika kostnoĭ tkani krys posle poleta na biosputnike "Kosmos-1129".