A popular workout supplement might protect the brain from gut inflammation

Key Points:

• New research in rats shows that creatine supplementation prevents brain inflammation, nerve cell damage, and disrupted electrical activity in the hippocampus caused by chronic colitis, with male rats exhibiting more severe damage than females.
• Chronic colitis reduced creatine levels in the hippocampus and triggered immune activation in the brain, but creatine supplementation restored hippocampal creatine and suppressed inflammation in both sexes, especially reducing tumor necrosis factor in females.
• Male rats with colitis experienced physical neuronal damage and decreased excitability in hippocampal neurons, while female rats maintained neuronal structure and showed fewer functional changes, highlighting significant sex differences in brain responses to gut inflammation.
• The study emphasizes the gut-brain axis's role in inflammatory bowel disease-related brain changes and suggests creatine as a potential neuroprotective agent, though the findings are preliminary and have not been tested in humans.
• Researchers caution that creatine's protective effects were preventive (administered before colitis onset), and further studies are needed to clarify mechanisms, sex-specific responses, and applicability to human patients with chronic intestinal inflammation.