研究设计：我们研究了大鼠脊索的电子和光学显微镜下改变、嗜中性粒细胞浸润和脂过氧化作用情况，同时还研究了其早期的神经系统检查情况。
Study Design. Electron and light microscopic changes, neutrophil infiltration, and lipid peroxidation in the spinal cord and early neurologic examination were studied in rats.
脊索是双边对称的，三叶裂的，分段的腔壁。
Chordates are bilaterally symmetrical, triploblastic, segmented coelomates.
比如，凡长有脊索（包括鲨鱼，蟒蛇，鹈鹕还有你的脊柱）的生物都归属于脊索动物门。
For instance, everything with anotochord (which would be a spine for sharks, pythons, pelicans, you) belongsin the phylum Chordata.
发言者叫乔希•索默（Josh Sommer），他在被诊断得了一种称为脊索瘤的罕见脑瘤后，退了学，然后开始寻找“被锁在实验室里未利用的信息”来帮助患者。
The speaker, Josh Sommer, left college after being diagnosed with a rare type of brain tumor, called a chordoma, and found “information locked inside labs and not being utilized” to help patients.
行胚胎干细胞注射的退变椎间盘中出现了新生脊索细胞群。
New notochordal cell populations were seen in degenerated discs injected with ESCs.
这种来自墨西哥和美国西南部的、全为雌性的蜥蜴物种（脊索动物门臼齿蜥科Aspidoscelis属）能够在无需雄性授精帮助的情况下繁殖良种后代。
This all-lady lizard species (of theAspidoscelis genus) from Mexico and the U.S. Southwest manage to produce well-bred offspring without the aid of male fertilization.
此时椎间的脊索细胞逐渐增多。
Right now the notochord cell between vertebra is added gradually much.
颅底软骨肉瘤与脊索瘤主要的临床区别是病人的年龄和生长率。
The major clinical distinctions between chordomas and chondrosarcomas of the skull base are patient age and rate of growth.
利用本文方法和编制的程序可分析具有谷索、脊索、索边界及固定边界的组合膜结构。
Using these formulas and their computer program, membrane structure with cables, cable boundaries or fixed boundaries can be analyzed.
假如膜外表设置有压索或脊索，那么最佳使裁剪缝与压索或脊索重合，使索不至于打乱焊缝的图画安置。
If the film surface is provided with a press cable or notochord, then make the best cut and sew with pressure cable or notochord coincide, the cable without interrupting the weld picture placement.
此时脊索细胞消失，髓核逐渐成为一个软而细胞较少的纤维软骨。
Right now notochord cell disappears, pith nucleus becomes a fiber cartilage with soft and less cell gradually.
目的：细胞外微环境直接影响到体外人转移脊索瘤细胞的表现。
Objective. The extracellular microenvironment directly affects metastatic chordoma cell phenotype in vitro.
脊索瘤是来自脊索遗迹的罕见肿瘤，主要侵犯荐椎及颅底。
Chordomas are rare tumors of notochordal tissue remnants and most frequently affect the sacrum and skull base.
研究结果证实脊索瘤中既有上皮组织分化的特点又有间叶组织的表现，还存在着具有多潜能分化的恶性干细胞群体。
Some cells were multipotential neoplasms cells in which the stem cells were capable of differentiation along both epithelial and mesenchymal pathways.
英国古生物学家们通过牙形石动物的软体解剖学研究，发现眼睛、脊索、神经索、肌肉组织、尾鳍等软组织；
The soft anatomy of conodont shows some soft tissues including eyes, notochord, nerve cord, myomeres and caudal fin.
脊索瘤是极少见的恶性肿瘤。
目的探讨颅底脊索瘤的临床特点及治疗。
Objective To explore the clinical characteristics and treatment of patients with chordomas in the skull base.
脊椎动物胚胎中胚层中的体节物质，沿脊索成对出现，后生长成肌肉或脊椎。
A segmental mass of mesoderm in the vertebrate embryo, occurring in pairs along the notochord and developing into muscles and vertebrae.
结论MRI是诊断颅内脊索瘤的有效检查方法，具有重要的诊断和鉴别诊断价值。
Conclusion MRI is an effective method for diagnosis of intracranial chordoma and have the important value for diagnosis and identification.
结合微分几何的曲线论和分布荷载作用下索的受力模型，研究了索膜结构中边索、脊索和谷索的受力分析和形状分析。
Combined the curve theory of differential geometry and the cable model applied distributed load, form analysis and tension analysis of boundary cable, ridge cable and valley cable were performed.
结论MRI可以准确显示斜坡脊索瘤的大小、形态、边界和信号特点，有利于该病的诊断。
Conclusion MRI is able to display size, shape, borderline and signal characteristics of tumors in clivus chordoma, contributing to diagnosis of them.
研究设计。回顾性研究20例因骶骨脊索瘤和软骨肉瘤行肿瘤整块切除术的患者。
Study Design. Retrospective study of 20 consecutive patients who underwent en bloc tumor excision of sacral chordomas and chondrosarcomas.
结果：脊索瘤的低场MRI的主要表现有：肿瘤信号变化，肿瘤形态改变，骨质破坏，周围血管侵蚀及肿瘤外周侵犯等。
Results: The chief characteristics of chordoma in low field MRI were: tumor signal change, tumor shape transformation, bone destruction, the perivascular erosion , etc.
目的探讨骶骨脊索瘤的外科治疗方法。
Objective To discuss the surgical methods of sacral chordoma.
目的探讨骶骨脊索瘤临床病理分型与预后的关系。
Objective To explore the relation between clinical pathological typing and prognosis of sacrococcygeal chordoma.
结论。骶尾部脊索瘤治疗中应避免瘤内切除，因为其增加了复发率，缩短的生存期。
Conclusions. Intralesional resection should be avoided as it is associated with a higher LR rate and worse survival.
目的：斜坡脊索瘤的临床特点和手术方法分析。
Aim: To investigate the clinical characteristics and surgical approaches of clival chordoma.
目的：斜坡脊索瘤的临床特点和手术方法分析。
Aim: To investigate the clinical characteristics and surgical approaches of clival chordoma.
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