The Wake Forest Nonhuman Primate Radiation Late Effects Cohort

Area of Science:

• Radiation biology
• Toxicology
• Primate models

Background:

• The Radiation Late Effects Cohort (RLEC) at Wake Forest University School of Medicine is a unique resource.
• It comprises rhesus monkeys irradiated over twenty years, sourced from multiple institutions.
• Supported by the NIH/NIAID Radiation/Nuclear program, it serves the Centers for Medical Countermeasures against Radiation Consortium (CMCRC) and biomedical researchers.

Purpose of the Study:

• To examine the long-term health consequences of radiation exposure in non-human primates.
• To serve as a national resource for understanding radiation's chronic effects.
• To facilitate research on medical countermeasures against radiation.

Main Methods:

• The RLEC has studied 328 macaques since 2007.
• This includes 270 animals exposed to external beam ionizing radiation and 58 controls.
• Long-term health outcomes are monitored and analyzed.

Main Results:

• Irradiated macaques exhibit a multisystemic pattern of chronic illness.
• Observed conditions include metabolic disease, diabetes mellitus, hypertension, and increased cancer rates.
• Further effects include immune impairment, cardiovascular and cerebrovascular diseases, cataracts, osteopenia, renal disease, and systemic inflammation.

Conclusions:

• The RLEC provides critical data on the long-term, multisystemic health impacts of radiation exposure.
• Research using this cohort has revealed significant chronic morbidities.
• The RLEC is a valuable resource for future investigations into radiation effects and countermeasures.