基因突变 z-bo 2020-09-24 351

　　The disheveled and tangled hair of the character "Unkempt Peter" in the famous German children's book is usually a sign of poor hygiene in children. But in fact, for children with similar disheveled hair, this phenomenon is not their own problem, but because of genetic mutations.

　　Recently, scientists pointed out the three gene mutations behind this so-called "puffy syndrome." The sign of this dry follicle disorder is exactly what it sounds like: hair is dry, curly, light-colored, and difficult to comb.

　　In order to clearly diagnose this symptom, the researcher's hair sample was placed in two sections and placed under a high-performance scanning electron microscope for observation. Studies have found that the cross-section of straight hair is round, while curly hair seems to be slanted, and the cross-section of shaggy hair is often triangular or heart-shaped, with texture from root to tail.

　　Researchers said in an article recently published in the American Journal of Human Genetics that the three genes that affect hair characteristics are PADI3, TGM3 and TCHH. If one of the genes malfunctions, the structure and stability of the hair will be affected. So far, only about 100 relevant cases have been collected, but researchers suspect that not all encounters have reported their symptoms.

　　Think about this question: When was the last time you went to the doctor because of unsatisfactory hair and unhappy mood? Fortunately, for patients, the problem of tangled hair seems to be easier to manage with age, and it has no health implications other than the pressure that causes the hair to be difficult to comb. However, for other people, it is now easy to know that their children's hair is tied not because of genetic problems.