I reported previously (see here) on the stem cell treatment of Israel’s Pluristem for radiation sickness. Pluristem’s four-year studies show that its placenta-based PLX-R18 cells are effective as a treatment for radiation damage to the gastrointestinal tract and bone marrow.

https://www.timesofisrael.com/study-shows-placenta-treatment-effective-against-radiation-sickness/