The Chronic Wound Microbiome: Dynamics and Treatment Response.

Chronic wounds like diabetic foot ulcers are slow to heal and often become infected, which can lead to amputation. This study looked at the tiny organisms (bacteria and fungi) living in these wounds—called the microbiome—and how they change over time and respond to treatment. Researchers followed a group of patients with chronic wounds, collecting samples regularly to see which microbes were present and how the wound healed. They found that wounds that healed had a more diverse and balanced mix of bacteria, while non-healing wounds were often dominated by harmful bacteria like Staphylococcus. In fact, about 60% of non-healing wounds had high levels of this bacterium, compared to only 20% of healing wounds. The study also found that antibiotic treatment reduced bacterial diversity, which sometimes led to worse outcomes. These findings suggest that simply killing all bacteria may not be the best approach; instead, treatments that promote a healthy balance of microbes could help wounds heal. However, this was a small study, and more research is needed to confirm these results and develop new therapies.