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Chinese Scientists Isolate Gene for Genetic Dental Disease


Chinese scientists have isolated the gene which causes a genetic dental disease, in which a patient grows no permanent teeth after loosing his milk teeth.

This is the first time such a disease has been discovered, and it has been named "He-Zhao-Deficiency" after its Chinese discoverers and scientists.

The name is now being used among world medical communities. Online Mendelian Inheritance In Man, a prestigious international medical archive, has included the disease in its index.

He Lin, director of BIO-X Life Sciences Research Center with the Shanghai Jiaotong University, says the pathogenic gene lies inthe long arm of the 10th chromosome of a human.

He made the discovery together with scientists at the Shanghai Life Research Center affiliated to China's Academy of Sciences, the Shanghai Human Gene Research Center as well as the BIO-X Center.

The research group has published their findings in a most prestigious American dental magazine.

Zhao Wanli, a doctor in northwest China's Shaanxi Province, together with his cousin, Zhao Shuangmin, at the end of the 1990s,found six generations of one local family who were all toothless.

Zhao Shouyuan, a professor with Fudan University and an authority in genetics, says the discovery and the finding of its genetic cause are a breakthrough in China's genetic research for hereditary diseases.

Statistics show that worldwide 9.6 percent of people suffer from different kinds of dental diseases.

( December 6, 2001)

In This Series

References

Genes of Three Pathogenic Microbes Sequenced

China Finishes its Part of Rice Gene Sequencing

Surname-gene Relationship Discovered

China to Announce Completed Genetic Map

New Laws to Guide Nation's Gene Work

Human Gene Therapy Worth Risks

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