目的进行颞下颌关节滑膜间充质干细胞（SMSCs）的体外分离与培养。方法用有限稀释法筛选出SMSCs，并在25ml培养瓶中扩增培养。噻唑蓝法检测SMSCs的细胞生长周期，细胞免疫化学检测波形蛋白和角蛋白的表达，流式细胞技术对SMSCs进行CD8，CD34，CD44，血管细胞间黏附分子-1（VCAM-1）和细胞间黏附分子-1（ICAM-1）的检测。结果体外培养的SMSCs，细胞突起明显，细胞外形均匀一致，免疫染色显示波菜蛋白阳性与角蛋白阴性。流式细胞仪检测发现其有CD44、VCAM-1和ICAM-1的表达。结论从成人的颞下颌关节滑膜中可以分离培养出SMSCs。

The aim of this study was to discover the clinical value of the tumour marker AMDL DR-70 in a group of patients with cancer of the tongue. Serum concentrations of AMDL DR-70 were estimated by enzyme linked immuno-sorbent assay in 52 patients with carcinoma of the tongue and compared with 40 controls and 42 patients with benign lesions in the tongue. Thirty-nine patients with carcinoma of the tongue had results above 6 mg/L (75%), compared with 3/40 (7%) in healthy controls and 4/42 (10%) in those with benign tumours. The concentration of AMDL DR-70 in serum correlated significantly with 3-year survival.

The purpose of this study was to investigate the waveform and electrosonographic characteristics of sounds emanating from internal derangement of the temporomandibular joint (TMJ). TMJ sounds were ecorded from 10 joints of normal people (NP), 10 joints from patients with anterior disc isplacement with reduction (DDR) and 20 joints from patients with anterior disc displacement without reduction (DDNR). The sounds were analyzed through fast Fourier transfer methods to observe their waveforms and electrosonographic characteristics. The observations were then used in differentially diagnosing internal derangement. Wave pattern and electrosonography (ESG) differed among the NP, DDR and DDNR groups. There was very little difference in frequency between the sounds from DDR and DDNR, but the amplitude of the DDR sounds was higher than those of DDNR and NP. The sensitivity and specificity of ESG diagnosis for DDR were 77.2% and 93.3%, respectively, while for DDNR they were 81.6% and 64.7%, respectively.