What question did this study set out to answer?

To explore the protective effects of cobalt chloride on intestinal radiation injury and its underlying mechanisms.

February 19, 2026The FASEB JournalOpen Access

Cobalt Chloride Protects Against Intestinal Irradiation‐Induced Injury by Activating the HIF ‐2α

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Demonstrates cobalt chloride's protective effect on intestinal radiation injury, suggesting new radiation protection strategies.

To explore the protective effects of cobalt chloride on intestinal radiation injury and its underlying mechanisms.
Systematic examination across cells, intestinal tissues, intestinal organoids, and live mice.
Assessment of radiation tolerance and injury scores in treated vs. untreated mice.
Evaluation of gene expression related to cell proliferation and barrier protection.
CoCl 2 pretreatment significantly improved survival rates and intestinal injury scores in mice.
Enhanced proliferation and differentiation of intestinal organoids were observed.
CoCl 2 inhibited apoptosis in intestinal epithelial cells and increased expression of protective genes.

Zhao et al. (2026) studied this question.

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