慢性乙型肝炎患者唾液中HBV DNA水平与牙周状况的关系

Relationship Between Hepatitis B Virus DNA Level in Saliva and Periodontal Status in Chronic Hepatitis B Patients

目的观察肝炎患者中不同口腔卫生指标对唾液HBV DNA状况的影响,探讨牙周健康状况在乙型肝炎传播流行中的意义。方法采用Trizol方法裂解唾液中DNA,氯仿-异丙醇方法进行分离和提取,用荧光定量聚合酶反应PCR法检测60例慢性乙型肝炎患者唾液中的HBV DNA含量,并探讨其与菌斑指数(PI)、牙龈指数(GI)、探针深度(PD)之间的关系。结果60例慢性HBV感染者中唾液HBV DNA阳性34例,平均HBV DNA含量为4.16±0.57(拷贝数/ml的对数);PI、GI、PD指数对唾液HBV DNA的阳性率和含量无影响。结论牙周状况与唾液中的HBV DNA检出率和含量无明显关联,唾液中HBV DNA的来源可能存在血液来源以外的其他途径。

OBJECTIVE To quantify the HBV DNA in saliva of chronic hepatitis B （CHB） patients and to study its relation to the periodontal status of the patients. METHODS HBV DNA were isolated from 60 patients with CHB by Trizol-chloroform method. HBV DNA levels were tested by real-time PCR technique and their relationship with plaque index, gingival index and probing depth was analyzed. RESULTS The positive rate of HBV DNA was 56.7%, and the level of HBV DNA was 4.16＋0.57 （LogE, copies/ml） in saliva. The detectability of HBV DNA in saliva had no significant correlation with the values of oral clinical parameters. CONCLUSIONS The detectability and level of HBV DNA in saliva have no correlation with the oral hygienic parameters. Other sources of the HBV DNA may exist besides the serum in saliva.