A vitamin A compound called topical Retin-A, also known as tretinoin and primarily used to treat acne, has been found to enhance the healing of foot ulcers in diabetic patients, according to a report in the Archives of Dermatology.
Previous studies suggested that topical Retin-A might aid wound healing in people with diabetes, but results were mixed and debated among scientists. To investigate further, researchers conducted a study with 24 volunteers who had diabetic foot ulcers but showed no signs of infection or circulation problems in their feet.
Participants were divided into two groups: one group received daily treatment with a 0.05% tretinoin solution for four weeks, while the control group was treated with a saline solution. Both groups were evaluated every two weeks.
Out of the 22 volunteers who completed the study, a total of 24 foot ulcers were treated. After 16 weeks, 46% of the ulcers in the tretinoin-treated group (6 out of 13 ulcers) fully healed, compared to only 18% in the control group (2 out of 11 ulcers). No significant adverse events were reported, although some patients experienced mild pain at the ulcer site.
The researchers were encouraged by the results but cautious, as tretinoin can cause irritation. They expected irritation might prevent patients from continuing the treatment, but most participants tolerated it well.
The study concluded with a hopeful message that diabetic foot clinics consider using Retin-A, especially when other therapies fail to heal ulcers.