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Objective
To explore the protective effect of human urine‐derived stem cell exosomes (hUSC‐Exos) on radiation‐induced salivary gland (SG) injuries in Sprague Dawley rats.
Methods
Fresh adult urine was collected, and primary hUSCs were isolated and identified. The hUSCs were hypoxia‐pretreated with 1% oxygen for 24 h and then transferred to a normoxic culture environment for 24 h. The hUSC‐Exos...