世界のまじヤバい動画

Human trials are underway for a drug that regrows human teeth in just 4 days. Scientists are initiating human trials for a groundbreaking drug designed to regrow teeth naturally, potentially rendering dentures and implants obsolete. For decades, permanent tooth loss has been considered an irreversible part of aging or injury, leaving millions reliant on synthetic implants and dentures. However, researchers at Kyoto University are now challenging this biological limitation by launching human trials for a drug that triggers natural tooth regrowth. The treatment works by inhibiting a protein called USAG-1, which normally suppresses the maturation of "extra" tooth buds. By blocking this biological brake, scientists have successfully grown new, fully functional teeth in animal models, effectively tapping into a latent "third dentition" that humans carry in a suppressed state. The project is being advanced by the startup Toregem BioPharma, with an initial clinical focus on individuals with congenital tooth agenesis—a condition where adult teeth never form. These patients are ideal candidates because their dormant tooth buds are already present but inactive, waiting for the correct biological signal to mature. While the drug requires precise timing and developmental context to work effectively, its success could signal a massive paradigm shift in restorative medicine. Moving beyond porcelain and titanium, the future of dentistry may lie in the body’s own inherent ability to regenerate its natural anatomy. source: Takahashi, K., Kiso, H., & Murashima-Suginami, A. Advances in tooth agenesis and tooth regeneration. Regenerative Therapy