As the new year prompts many individuals to embrace fitness routines, recent research from Newcastle University indicates that even brief episodes of intense exercise may offer protective benefits against cancer, particularly bowel cancer. The study suggests that as little as 10 minutes of vigorous activity can slow the growth of cancer cells.
The research highlights that short, intense exercise induces significant changes in the composition of molecules in the bloodstream. These changes are linked to a reduction in inflammation, support for healthy blood vessels, and enhanced metabolism. Laboratory tests revealed that blood samples taken post-exercise altered the activity of over 1,300 genes in bowel cancer cells, including those associated with DNA repair and cell growth.
Published in the International Journal of Cancer, the findings underscore the potential of physical activity in lowering cancer risk. Dr. Sam Orange, the lead author, noted that exercise triggers molecular signals that can directly influence cancer cell behavior and gene activity. This revelation paves the way for exploring new therapeutic strategies that could replicate or enhance the benefits of exercise in cancer treatment.
The study involved 30 healthy volunteers aged 50 to 78, all of whom were overweight or obese. After a 10-minute cycling test, researchers analyzed blood samples and identified 13 proteins that increased post-exercise, including interleukin-6, which is known to aid DNA repair.
Bowel cancer, the fourth most common cancer in the UK, sees nearly 44,000 new cases annually. Regular physical activity is associated with a 20% reduction in bowel cancer risk. The researchers plan to investigate the long-term biological effects of repeated exercise sessions and their interactions with conventional cancer treatments. This ongoing research may further elucidate the relationship between physical activity and cancer prevention.