Because of the loss of anterior horn cells , the anterior ( ventral ) spinal motor nerve roots demonstrate atrophy , as seen here in comparison with a normal spinal cord 如图示，与正常脊索相比，由于前角细胞丧失，前(腹侧)脊髓运动神经根萎缩。
For answers , the researchers examined samples of notochord cells from adult dogs , with attention to their effect on the regulation of important genes in chondrocytes , or cells found in cartilage 回答此问题，研究人员检查成年犬的脊索细胞，注意到他们对软骨细胞或软骨内的细胞重要基因表达有调节作用。
Many published papers discussed its clinic characteristic points , but little is known a - bout the molecular changes in this disease . few protooncogenes and tumor sup - presser genes have been found to be altered in chordoma 因而脊索瘤相关基因研究将有助于脊索瘤基因诊断和基因治疗的进展，从而在分子机制上彻底去除或阻断致病基因的作用，达到治疗脊索瘤的目的。
We review the literatures of the clinical feature , pathophysiology , treatment modalities and prognosis of chordomas , and also the newest advances of radiotherapy , including proton beam radiotherapy ( rt ) and heavy charged particles rt ( carbon ions ) for treating chordomas 我们回顾文献中有关脊索瘤之临床表现、病态生理、治疗策略及预后，并整理放射治疗之最新进展，包括质子治疗及重粒子治疗如碳离子对脊索瘤之治疗比较。
Discussion in the process of development , differentiation and metabolism , the differential expression of genes plays a pivotal role . mrna differential display , established by liang and pardee in 1992 , is among the most sensitive methods for the isolation of differentially regulated mrna 经rt一pcr反应筛查17例脊索瘤及其周围正常组织，扩增片段大小与引物设计一致，可见瘤周组织rnf一n基因表达明显增高，而ctc一sodms在肿瘤组织中表达增高。
The results reveal that the force in the members and the displacement are small when two structures are under seismic load . that the ideas of designing cable dome change from " continuous tension , discontinuous compression " to " discontinuous tension , discontinuous compression " and that the ideas of construction technique change from " moving diagonal cable " to " moving outer diagonal cable or ridge cable " is proposed 提出索穹顶结构的设计思想已经从最初的“连续拉，间断压” ，发展为“间断拉，间断压” ；施工成形技术也从原来的张拉斜索，演变为张拉最外圈的脊索浙江大学申请博士学位论文葵花型索育顶结构的理论分析和试验研究或者最外圈的斜索。
