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Spaceflight = Programmed Anemia?
26 mars 2025
#Anemia #Space #Microgravity #Hemolysis #RBC
#Astronauts
Space anemia is a well-known phenomenon among astronauts, observed since the earliest manned missions. It is characterized by a decrease in red blood cell count and hemoglobin concentration, which can affect oxygen transport capacity, physical performance, and post-flight recovery. Until recently, this anemia was considered transient and adaptive—primarily due to early changes in plasma volume and a temporary reduction in erythropoiesis linked to microgravity.
Space anemia is a well-known phenomenon among astronauts, observed since the earliest manned missions. It is characterized by a decrease in red blood cell count and hemoglobin concentration, which can affect oxygen transport capacity, physical performance, and post-flight recovery. Until recently, this anemia was considered transient and adaptive—primarily due to early changes in plasma volume and a temporary reduction in erythropoiesis linked to microgravity.
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Scientific reference
Trudel, G., et al. (2022). Hemolysis contributes to anemia during long-duration space flight. Nature Medicine, 28(1), 59-62
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