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Neurophysiological changes in simulated microgravity: An animal model.

Christiane M Nday1, Christos Frantzidis1, Graham Jackson2

  • 1Laboratory of Medical Physics, Medical School, Aristotle University of Thessaloniki (AUTh), Thessaloniki, Greece.

Neurology India
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This summary is machine-generated.

Microgravity negatively impacts astronaut neurophysiology, affecting brain pathways, neuronal connectivity, and cognitive functions. Earth-based animal models help study these effects and potential neurological disorder parallels.

Keywords:
Microgravitynervous systemphysiology and rodent analogs

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Area of Science:

  • Neuroscience
  • Space Physiology
  • Molecular Biology

Background:

  • Space travel poses risks to astronaut neurophysiology.
  • Long-duration missions can cause detrimental neurological effects.
  • Existing research on microgravity's impact on the nervous system is insufficient.

Purpose of the Study:

  • To review molecular mechanisms underlying neurophysiological changes in microgravity.
  • To investigate the impact of simulated microgravity on neuronal connectivity and cognitive function.
  • To highlight the role of biomarkers in microgravity-induced neurological alterations.

Main Methods:

  • Review of earth-based animal models simulating microgravity (hindlimb unloading, tail/pelvic suspension).
  • Analysis of molecular signaling pathways affecting neurotransmitters, genes, and receptors.
  • Examination of neuropathological profiles in rodent models.

Main Results:

  • Microgravity affects nervous system homeostasis, impacting neurotransmitter and ion channel function.
  • Simulated microgravity leads to reduced neuronal connectivity and impaired cognitive/neuroplasticity functions.
  • Animal models show neuropathological similarities to aging and neurological disorders.

Conclusions:

  • Earth-based animal models are valuable tools for studying microgravity's neurophysiological effects.
  • Understanding molecular changes is crucial for mitigating space travel's neurological risks.
  • Microgravity research has implications for understanding aging and neurological diseases.