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July 30, 2026The Journal of Immunology

“Red Blood Cells are critical determinants of survival in radiation-induced hematologic injury” 2260138

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Authors

SSSaurabh SainiUniversity of IowaPGPrajwal GurungUniversity of Iowa

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Implication

Randomized trial demonstrates improved survival in mice with RBC transfusion after radiation exposure, indicating therapeutic importance.

Key Points

  • This study aims to investigate the role of red blood cell (RBC) depletion in mortality following radiation-induced hematologic injury.
  • Wild-type C57BL/6 mice (8-10 weeks) were subjected to 5 Gy total body irradiation (TBI).
  • Peripheral blood parameters, including RBC and hemoglobin levels, were monitored from days 0 to 60 post-radiation.
  • An additional cohort received 6 Gy TBI with RBC transfusions on days 2 and 5 post-irradiation.
  • WBC counts declined over 90% by day 1, with recovery starting after day 20.
  • RBC counts reached their lowest by day 15, coinciding with mortality onset.
  • Transfusions improved survival drastically, with 40% lethality in treated mice vs. 100% in controls; P = 0.0022.

Cite This Study

Saini et al. (2026) studied this question.

synapsesocial.com/papers/6a6af4e960e2b924d3ea07b8https://doi.org/10.1093/jimmun/vkag141.864
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Effects of Hemorrhage on Hematopoietic Cell Depletion after a Combined Injury with Radiation: Role of White Blood Cells and Red Blood Cells as Biomarkers2024 · 2 citations
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  3. 3Evaluation of low dose ionizing radiation effect on some blood components in animal model2016 · 62 citations
  4. 4Biomarkers for Radiation Biodosimetry and Correlation with Hematopoietic Injury in a Humanized Mouse Model2024 · 3 citations
  5. 5Evaluating the impact of the CD47 on RBC morphology following sublethal irradiation 22612262026