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Red blood cell and iron metabolism during space flightSpace flight anemia is a widely recognized phenomenon in astronauts. Reduction in circulating red blood cells and plasma volume results in a 10% to 15% decrement in circulatory volume. This effect appears to be a normal physiologic adaptation to weightlessness and results from the removal of newly released blood cells from the circulation. Iron availability increases, and (in the few subjects studied) iron stores increase during long-duration space flight. The consequences of these changes are not fully understood.
Document ID
20040088075
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Smith, Scott M.
(NASA Johnson Space Center Houston TX United States)
Date Acquired
August 21, 2013
Publication Date
October 1, 2002
Publication Information
Publication: Nutrition (Burbank, Los Angeles County, Calif.)
Volume: 18
Issue: 10
ISSN: 0899-9007
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
STS Shuttle Project
Flight Experiment
NASA Center JSC
long duration
short duration
Review, Tutorial
Skylab Project
Review
manned
NASA Discipline Regulatory Physiology

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