用放射免疫法分析增龄性变化时唾液中sIgA、IgG与龋病的关系

Analysis on relations between caries and IgA or IgG of saliva as age was increasing by using radio-immunology method

用放射免疫法对118名不同年龄的龋病组和正常对照组受试者混合唾液中IgA和IgG含量进行检测。结果表明：龋病组唾液中sIgA含量随增龄性变化而逐渐降低，正常对照组随增龄性变化出现降低、升高、再降低的变化。龋病组与正常对照组唾液中IgG含量在30岁之前均有伴增龄性变化逐渐升高的趋势，但在30岁以后伴增龄性变化反而逐渐降低。

The radio-immunology method was used to examine and analyze the contents of IgAand IgG in the saliva samples among 58 caries (cases) and 60 normal controls who were divided intoseveral age-groups. The results indicated: as age was increasing,the contents of IgA of saliva graduallydecreased in the case groups,but decreased,, re-increased and re-decreased in the control groups. However,as age was increasing, the contents of IgG of saliva in both cases and controls increased in thegroup aged no more than 30 years,but decreased in the group aged more than 30 years.