Størksen K, Aukland S, Kvinnsland S
Acta Odontol Scand. 1979;37(1):29-35. doi: 10.3109/00016357909004682.
Various cartilaginous zones in the craniofacial region of rats were studied using radioactive sulfate incorporation. Chondroitinsulfate represents a major part of the cartilaginous matrix. By measuring the cpm/DNA ratio in the tissue samples, one will get an expression of the matrix formation activity of the zones investigated. An increase in the cpm/DNA ratio was found in all zones between the 14th and the 17th day. This increase corresponds with a period of great proliferative activity. Autoradiography of the mandibular condyle revealed no sulfate labelling centrally indicating that this structure grows purely by surface apposition.
利用放射性硫酸盐掺入法研究了大鼠颅面部的不同软骨区域。硫酸软骨素是软骨基质的主要成分。通过测量组织样本中的每分钟计数（cpm）/DNA比值，可得出所研究区域的基质形成活性。在第14天至第17天之间，所有区域的cpm/DNA比值均有所增加。这种增加与一段高度增殖活性期相对应。下颌髁突的放射自显影显示中央无硫酸盐标记，表明该结构仅通过表面附着生长。
