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Gravity and Skeletal Growth: I. Gravity and Skeletal Growth (COS 1887-17)
Principal Investigator
Research Area:
Bone and calcium physiology
Species Studied
Scientific Name: Rattus norvegicus Species: Rat Strain: Wistar


Past data suggest that matrix turnover is altered during space flight which in turn decreases the amount of bone added; either this defect alters the size of bone crystals formed or the flight environment somehow impedes crystal growth independent of matrix production. This suppressed bone formation may be a major factor in the failure of bone to increase its strength. The objectives of the Cosmos 1887 study were to continue the investigation of space flight on bone in growing rats.

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Morey-Holton, E.R. et al.: Gravity and Skeletal Growth: I. Gravity and Skeletal Growth. Final Reports of the U.S. Experiments Flown on the Soviet Biosatellite Cosmos 1887. J.P. Connolly, R.E. Grindeland, and R.W. Ballard, eds., NASA TM-102254, 1990, pp. 113-122.

Bone marrow

Data Information
Data Availability
Archive is complete. No data sets are available for this experiment. Please Contact LSDA if you know of available data for this investigation.

Area, Bone, tibia, rat, Microscopy
Area, Marrow, tibia, bone, rat, Microscopy
Morphology, Endosteal perimeter, tibia, bone, rat, Microscopy
Morphology, Periosteal perimeter, tibia, bone, rat, Microscopy
Properties, Electrophoretic mobility (EPM), vertebrae, rat, Fluid electrophoresis
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Cosmos 1887 09/29/1987 10/11/1987 13 days

Additional Information
Managing NASA Center
Ames Research Center (ARC)
Responsible NASA Representative
Ames Research Center LSDA Level 3
Project Manager: Martha Del Alto
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
Protocol / Approach
Hardware Items