Task Individual Differences in the Neurochemical and Behavioral Response to Exposure to Protons and HZE Particles (Completed)
Last Published:  07/31/19 10:05:33 AM (Central)
Short Title: HZE Individual CNS
Responsible HRP Element: Space Radiation
Collaborating Org(s):
Other:
Funding Status: Completed - Task completed and produced a deliverable
Procurement Mechanism(s):
Solicited
Aims:
  1. Evaluate the effects of repeated subthreshold exposures to HZE particles and protons on cognitive and neuronal deficits and how they relate to the characteristics of the specific particle.
  2. Determine the relationship between changes in performance and HZE particle- and proton-induced changes in oxidative stress, inflammation, signaling molecules and autophagy in key brain regions.
  3. Determine how individual characteristics, including age and sex, may influence the responsiveness of the individual to HZE particle irradiation.
Resources (None Listed)
Mappings
RiskRisk of Acute (In-flight) and Late Central Nervous System Effects from Radiation Exposure
GapCBS-CNS - 1: Are there significant adverse changes in CNS performance in the context and time scale of spaceflight operations? If so, how is significance defined, and which neuropsychological domains are affected? Is there a significant probability that space radiation exposure would result in adverse changes? What are the pathways and mechanisms of change?
GapCBS-CNS - 2: Does space radiation exposure elicit key events in adverse outcome pathways associated with neurological diseases? What are the key events or hallmarks, their time sequence and their associated biomarkers (in-flight or post-flight)?
GapCBS-CNS - 3: How does individual susceptibility including hereditary pre-disposition (e.g. Alzheimer’s, Parkinson’s, apoE allele) and prior CNS injury (e.g. concussion, chronic inflammation or other) alter significant CNS risks? Does individual susceptibility modify possible threshold doses for these risks in a significant way?
GapCNS - 6: How can new knowledge and data from molecular, cellular, tissue and animal models of late CNS risks or clinical human data be used to estimate late CNS risks to astronauts from GCR and SPE?
You are here!TaskIndividual Differences in the Neurochemical and Behavioral Response to Exposure to Protons and HZE Particles

RiskRisk of Adverse Cognitive or Behavioral Conditions and Psychiatric Disorders
GapCBS-BMed3: We need to identify and quantify the key threats to and promoters of mission relevant behavioral health and performance during autonomous, long duration and/or long distance exploration missions.
GapCBS-CNS - 1: Are there significant adverse changes in CNS performance in the context and time scale of spaceflight operations? If so, how is significance defined, and which neuropsychological domains are affected? Is there a significant probability that space radiation exposure would result in adverse changes? What are the pathways and mechanisms of change?
GapCBS-CNS - 2: Does space radiation exposure elicit key events in adverse outcome pathways associated with neurological diseases? What are the key events or hallmarks, their time sequence and their associated biomarkers (in-flight or post-flight)?
GapCBS-CNS - 3: How does individual susceptibility including hereditary pre-disposition (e.g. Alzheimer’s, Parkinson’s, apoE allele) and prior CNS injury (e.g. concussion, chronic inflammation or other) alter significant CNS risks? Does individual susceptibility modify possible threshold doses for these risks in a significant way?
You are here!TaskIndividual Differences in the Neurochemical and Behavioral Response to Exposure to Protons and HZE Particles