![](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_t-tt-eyRHBD0icNRkqYM62ALSAUvrdL72IlFEkCnNbx7IdESAv8WS37UrJ5CiFr4ug34QvMU5FPAp9A--f0LOpp5QN46sFWmcleg6pBPEsBcdAjujN5uHU2DB7rscj_FoHVBg9DlPMk2E=s0-d)
Researchers at the Washington University School of Medicine in St. Louis have found new evidence that suggests some
stuttering is caused by mutations in a metabolic pathway involved in recycling old cell parts not a gene governing speech. The study provides the first evidence that mutations affecting lysosomes play a role in causing people to stutter. A genetic study was done on members of a large family, many of who stutter. In most of the family members who stutter, mutations were found in three genes encode a pathway for directing newly made lysosomal enzymes to the lysosome. All three of the mutations impaired the enzyme, but each did so in a different way. Two of the mutations trap the proteins in the cell’s protein manufacturing center and the other mutation causes a folding problem and the protein is destroyed minutes after its been made. These discoveries lead researchers to investigate future therapies for stuttering,
This
article.
No comments:
Post a Comment