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An Alternant Method to the Traditional NASA Hindlimb Unloading Model in Mice
Published on: March 10, 2011
The hindlimb unloading rat model: literature overview, technique update and comparison with space flight data
Emily Morey-Holton1, Ruth K Globus, Alexander Kaplansky
1NASA Ames Research Center, Moffett Field, CA 94035-1000, USA.
Advances in Space Biology and Medicine
|August 17, 2005
Summary
The hindlimb unloading rodent model simulates space flight effects and disuse, aiding research into physiological system responses. This review analyzes 1064 articles on the model, its evolution, and applications for space exploration and Earth-based studies.
Area of Science:
- Physiology
- Space Biology
- Rodent Models
Background:
- The hindlimb unloading rodent model is crucial for studying physiological responses to microgravity and disuse.
- Understanding these responses has implications for both astronaut health and terrestrial conditions like aging and immobilization.
Purpose of the Study:
- To review the evolution and characteristics of the hindlimb unloading model.
- To compare hindlimb unloading results with actual space-flown animal data.
- To describe methodological modifications for diverse experimental needs.
Main Methods:
- Bibliometric analysis of 1064 articles published between 1976 and April 2004.
- Comparative analysis of data from Cosmos 2044 space mission and hindlimb unloaded rodents.
- Review of hindlimb unloading model modifications and tail harness protection techniques.
Main Results:
- The hindlimb unloading model has been widely adopted across various physiological systems.
- Analysis revealed trends in publications, research focus, and methodological adaptations.
- Comparison with space-flown data validates the model's utility in simulating microgravity effects.
Conclusions:
- Hindlimb unloading is a valuable tool for investigating musculoskeletal, cardiovascular, immune, renal, neural, metabolic, and reproductive system adaptations.
- The model provides critical insights for long-duration space flight and understanding disuse-related conditions on Earth.
- Methodological refinements enhance the model's applicability for diverse research paradigms.
