Skip to main content

You must be a logged-in member of UHMS or a subscriber to the UHMS Journal in order to download the articles listed within these pages. If you are a member or subscriber, please log in using the Log In button above. If you would like to purchase a membership or a subscription, use the buttons below.

Search UHM/UBR

Increased circulating stem cells and better cognitive performance in traumatic brain injury subjects following hyperbaric oxygen therapy

Traumatic brain injury (TBI) may cause persistent cognitive dysfunction. A pilot clinical study was performed to determine if hyperbaric oxygen (HBO2) treatment improves cognitive performance. It was hypothesized that stem cells, mobilized by HBO2 treatment, are recruited to repair damaged neuronal tissue. This hypothesis was tested by measuring the relative abundance of stem cells in peripheral blood 

and cognitive performance during this clinical trial. The subject population consisted of 28 subjects with persistent cognitive impairment caused by mild to moderate TBI suffered during military deployment to Iraq or Afghanistan. Fluorescence-activated cell sorting (FACS) analysis was performed for stem cell markers in peripheral blood and correlated with variables resulting from standard tests of cognitive performance and post-traumatic stress disorder: ImPACT, BrainCheckers and PCL-M test results. HBO2 treatment correlated with stem cell mobilization as well as increased cognitive performance. Together these results support the hypothesis that stem cell mobilization may be required for cognitive improvement in this population. 

DOI: 10.22462/5.6.2017.6