Tilapia skin’s collagen can aid in healing burns, fixing heart valves, and more—and now it can be used for repairing corneas
Tilapia skin is rich in collagen, and this structural protein's abundance has made the fish a popular resource in veterinary and human medicine. Researchers have explored its use in applications from bandaging burn victims and correcting abdominal hernias to mending heart valves and reconstructing vaginas.
Such corneal injuries are commonly treated by surgically placing a membrane made of horse placenta over the affected area to help it regenerate. Melo first swapped that membrane for tilapia skin in 2019, when she successfully operated on a Shih Tzu with a severe corneal perforation. Collagen is known to stimulate cellular growth and to “guide the generation of various tissues,” Melo says. A tilapia's collagen supply and quality remain high throughout the fish's entire life, whereas horse-placenta collagen varies depending on factors such as the animal's age and weight, she says.
The 400-plus dogs Melo has treated so far have shown no pain or problems with infection after surgery. They also healed quickly, with minimal scarring that would affect postsurgical care.
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