Effects of Simulated Altitude on Blood Cells in Healthy People
Author Information
Author(s): Ciulla Michele M, Cortiana Michela, Silvestris Ilaria, Matteucci Emanuela, Ridolfi Elisa, Giofrè Fabrizio, Zanardelli Maddalena, Paliotti Roberta, Cortelezzi Agostino, Pierini Alberto, Magrini Fabio, Desiderio Maria Alfonsina
Primary Institution: University of Milan
Hypothesis
What are the effects of brief normobaric hypoxia on circulating endothelial precursors in healthy subjects?
Conclusion
The endothelial compartment responds significantly to brief hypoxia, which may activate and recruit endothelial precursors.
Supporting Evidence
- There was a significant increase in circulating endothelial precursors after hypoxia exposure.
- Heart rate increased significantly during hypoxia.
- The frequency of endothelial precursors returned to baseline levels after 7 days.
Takeaway
When healthy people breathe less oxygen for a short time, their body makes more special blood cells that help repair blood vessels.
Methodology
Healthy subjects were exposed to 1 hour of normobaric hypoxia, and blood samples were taken before, immediately after, and 7 days later to measure endothelial precursor cells.
Limitations
The study lacks a uniform definition of endothelial precursor cells and does not assess their functional abilities.
Participant Demographics
8 healthy, non-smoking, non-obese, normotensive male volunteers.
Statistical Information
P-Value
p=0.016
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website