华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

腭裂小鼠鼻中隔前部附属器官发育的比较形态测量学研究

蔡志刚,HelmutvonDomarus,EveleyEngel   

  1. 100081 北京大学口腔医学院口腔颌面外科学教研室(蔡志刚),联邦德国吕贝克医科大学颌面外科(Helmut von Do- marus, Eveley Engel)
  • 收稿日期:2001-12-25 修回日期:2001-12-25 出版日期:2001-12-20 发布日期:2001-12-20

A Comparative Morphometrical Study on Development of Anterior Septonasal Accessory Organs in the Cleft Palate Mice

Cai Zhigang, Helmut von Domarus, Eveley Engel   

  1. Cai Zhigang Department Oral and Maxill of acial Surgery, Peking University School of Stomatology Helmut von Domarus, Eveley Engel Hospital of Maxill of acial Surgery, Luebeck Medical University, Germany
  • Received:2001-12-25 Revised:2001-12-25 Online:2001-12-20 Published:2001-12-20

摘要:

目的:探讨腭裂与胚鼠的犁骨、Jacobson器官和鼻中隔旁软骨发育的关系。方法:借助计算机图像处理系统, 测定30对处于相同或相近发育阶段的18三体伴腭裂胚鼠和正常胚鼠颅上颌复合体冠状序列连续切片中犁骨最大横截面积和Jacobson器官、鼻中隔旁软骨在原发腭与继发腭交界平面的横截面积,并估算犁骨在矢状平面的长度。进一步对腭裂及非腭裂组进行量化比较。结果:18三体伴腭裂小鼠的鼻中隔旁软骨及犁骨在冠状面和矢状面的发育均伴有严重的发育不足,而Jacobson器官在腭裂及非腭裂组无显著性差异。结论:18三体伴腭裂小鼠鼻中隔前部附属器官硬组织发育不足不仅与腭裂密切相关,而且很可能与常染色体三体条件关系更密切。

关键词: 腭裂, 犁骨, Jacobson器官, 鼻中隔旁软骨, 18三体小鼠, 比较组织形态测量学

Abstract:

Objective:The aim of this studywas to investigate whether cleft palate is associatedwith the mal-developmentof the vomer, Jacobsoncs organ and para-septal cartilage.Methods:Sixty craniomaxillary complexes, which came from 30 pairs of trisomy 18 with cleft palate (Ts+CP) and euploid mouse fetuseswere precisely orientated in the coronal plane, and serially sectioned at7Lm thickness. With the aid of computer imaging analysis system the vomer in coronal and sagittal direction, Jacobsoncs organ and para-septal cartilage in the boundary plane of the primary and secondary palate were measured and compared quantitatively.Re- sults:The hard tissues (including the vomer and para-septal cartilage) of the anterior nasal septum in Ts+CP foetuses show seri- ous developmental hypoplasia, however, the Jacobsoncs organ had no significant different between the cleft and non-cleft samples. Conclusion:Developmental hypoplasia of these hard tissues may be more closely related with the autosomal trisomic condition more than the cleft palate.

Key words: cleft palate, vomer, Jacobson′s organ, paraseptal cartilage, trisomy-18mouse, comparative morphmetrics