Researchers at The University of Alabama in Huntsville have discovered that low-intensity ultrasound can influence immune cell behavior, potentially reducing chronic inflammation and promoting tissue repair after joint injuries. A new study published in Scientific Reports found that continuous low-intensity ultrasound treatment can steer macrophages away from a prolonged inflammatory state and toward a more reparative response.
Macrophages play a crucial role in both inflammation and tissue repair. However, when they remain stuck in an inflammatory mode for too long, it can lead to chronic inflammation, which contributes to post-traumatic osteoarthritis. The new study suggests that low-intensity ultrasound may help restore balance by promoting a reparative macrophage response.
The researchers used fibronectin fragments to create a more accurate injury model and applied an advanced computational method to analyze the effects of ultrasound treatment on immune cells. The findings show that continuous low-intensity ultrasound lowers markers associated with inflammation and raises markers linked to tissue repair.
While the research is still in its early stages, it offers hope for developing non-invasive technologies to guide immune activity and support healing after injury. The next steps involve validating the findings in animal models of early post-traumatic osteoarthritis and studying how ultrasound-based modulation affects long-term tissue repair.
Source: https://scitechdaily.com/scientists-discover-ultrasound-may-stop-arthritis-before-it-starts