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Hematology, Cytological Composition of Bone Marrow and Standard Blood Parameters (B11-25)
Principal Investigator
Research Area:
Cardiovascular physiology
Species Studied
Scientific Name: Macaca mulatta Species: Monkey Strain: Rhesus


Exposure to microgravity has numerous effects upon human physiology. The effects of the space flight environment upon blood are not well understood. The extent of the hematological analysis of cosmonauts has been blood tests during flight, or for the most part, after their return to Earth. Only one postflight bone marrow draw has ever been performed on a human subject. Other bone marrow studies have been limited to myelograms of rats sacrificed after the Cosmos biosatellite missions. Rhesus monkeys have the same hemopoietic type (myeloid) as humans, and therefore are useful in the study of cytological components of bone marrow after microgravity exposure. This experiment measured hematological parameters in Rhesus monkeys after a 14 day space flight.

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Burkovskaya, T.E. and V.I. Korolkov: Hemopoiesis in Bone Marrow of Monkeys After Spaceflight. Journal of Gravitational Physiology, vol. 7(1), Jan 2000, pp. S129-S134.

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.

Count, Erythrocytes, blood, primate, Hematology
Count, Erythrokaryocytes, marrow, primate, Hematology (number/1 ml marrow)
Count, Leukocytes, blood, primate, Hematology
Count, Neutrophils, blood, marrow, primate, Hematology (number/1 ml marrow)
Count, Reticulocytes, blood, primate, Hematology
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Bion 11 12/24/1996 01/07/1997 13.5 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)
Protocol / Approach
Proposal Date
Proposal Source
Hardware Items