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Across the United States, about 2 million people are living with an amputation and another 185,000 amputations occur every year, according to the Amputee Coalition, a Washington DC-based support group. About 54% of these lost limbs were caused by vascular disease, including diabetes and peripheral arterial disease (PAD).

And as more people are diagnosed with diabetes in the US and worldwide, the number of amputations keeps rising.

Now, experts at Cincinnati Children's in collaboration with colleagues from Kanazawa University in Japan, have uncovered a new way to prompt blood vessel growth that shows promise as a treatment for preventing ischemia-induced amputations. Their discoveries were based on achieving a deeper understanding of why two patients in a clinical trial in Japan walked away with fully recovered limbs that appeared destined for amputation.