胎儿颞下颌关节髁状突软骨的凝集素亲和组化研究  

Lectin-binding histochemical studies on the cartilage of mandibular condyle of tempromandibular joint of fetus

作　　者：林艳丰 石南群 邹宁生[1] 

机构地区：[1]福建省人民医院耳鼻喉科,福建医学院人体解剖教研室

出　　处：《口腔医学纵横》1995年第4期202-204,共3页Journal of Comprehensive Stomatology

摘　　要：作者应用凝集素亲和组化法（九种凝集素）对４３例１３周至３８周的髁状突软骨（ＣＭＣ）进行研究，目的是观察胎儿ＣＭＣ各部位的特异性糖基及其随胎龄增长的变化。结果显示：ＣｏｎＡ、ＷＧＡ、ＲＣＡ、ＰＳＡ、ＢＳＬ对该组织有反应。ＣｏｎＡ、ＷＧＡ的反应见于整个胎儿期。ＲＣＡ、ＰＳＡ在１８周出现反应。ＢＳＬ在２２周出现反应，后三者反应均较弱。随着胎龄增长，ＣｏｎＡ、ＰＮＡ、ＢＳＬ等在ＣＭＣ不同部位的凝集素结合指数具有显著性或高度显著性差异。２９周后ＣＭＣ最表面出现一连续的ＲＣＡ阳性细胞带，其反应性质与血管内应相似。Abstract The cartilage of mandibular condyle (CMC) of 43 human fetuses, ranging from 13 to 38 weeks, was studied with lectin-binding histochemical technics (9 biotin-labelled lectins). The results showed that CMC posseed lectin-binding sites for ConA,WGA, PCA, PSA, BSL. The staining of ConA and WGA was existed during the whole fetus stage.The staining of RCA. PSA are found after 18 weeks and BAL after 22 weeks. The staining of RCA,PSA, and BAL was weaker than that of ConA and WGA. The positive reaction of WGA was not only restricted in chondrocyte but also some other portions. In all different age groups, ConA-staining for cells of proliferative zone was statistically significant. An RCA-positive cell zone was shown in the most of the superfacial palt of CMC after 29 weeks. Its characteristic feature of staining in some ways was Just like the reaction of endothelium of blood vessel.

关 键 词：髁状突 凝集素 胎儿 

分 类 号：R782.6[医药卫生—口腔医学]