动物造模 z-bo 2020-08-21 472

　　Recently, scientists have recently successfully cultivated human ears on the backs of mice, and believe that the results of this research can be used by humans within five years.

　　The technology was jointly developed by the University of Tokyo and Kyoto University and can be used to help children born with facial deformities and teenagers bitten by dogs. Adults, including wounded soldiers and accident personnel on the battlefield, will also benefit.

　　Currently, replacing the ear requires removing cartilage from the patient's ribs, but this requires various operations, and removing the cartilage is very painful and it is difficult to completely restore the chest. Yes. In contrast, the new technology only requires small cell samples as starting material. In addition, because the ear shape is a living thing, it will grow as the child grows. Scientists have set out to transform human "pluripotent" stem cells into cartilage cells. Cartilage cells grown in the laboratory form tiny balls, which are placed on a plastic scaffold shaped like a human ear, behind the mouse. Two months later, the plastic stent dissolves automatically, and it seems to extend a 2-inch ear on the animal's back.

　　This technology is one of the most studied technologies in the world. These technologies are designed to replace specific parts of the human body to solve the problems faced by people injured or deformed in accidents or diseases.

　　A doctor in London successfully repaired his nose, but used the patient’s arm instead of the mouse’s back. In addition, they are building artificial trachea, which may lead to full face growth in the laboratory in the future.