Differences of serum parathyroid hormone levels and its gene polymorphism in different ethnic groups in drinking brick-tea-borne endemic fluorosis areas

摘要

Objective In this study,the differences of serum parathyroid hormone(PTH)and its gene polymorphism in different ethnic groups in drinking brick-tea-borne endemic fluorosis areas were investigated.Methods Inhabitants over the age of 16 years old in Inner Mongolia,Qinghai and Xinjiang were investigated.The questionnaire survey included basic information,dietary survey