查询词典 tumor

The reason is the tumor cells escape the immunosurveillance whose mechanism is very complex. In general, the explanation is based on two aspects, one is that the tumor cells can passively escape the host immunosurveillance when the host immnue state is low and another is tumor cells can actively secrete factors to down-regulate immune function.

肿瘤逃避免疫监视的机制非常复杂，但总体上可从宿主免疫状态及肿瘤细胞等方面来解释，在宿主免疫状态低下时，肿瘤细胞可以被动地逃避免疫监视，但是肿瘤细胞也能主动地释放一些活性物质，下调免疫杀瘤作用，该作用主要通过两个途径，即对免疫细胞功能的调节和免疫细胞数量的调节。

objective to study the anti-tumor activity and enhancing immune effect of phellinus linteus.methods the anti-tumor activity of phellinus linteus was estimated by the longevity of eac mice,the immune effect of tumorous mice was tested by the experiment of carbon particle expurgation and the il-2 concentration in serum of tumorous mice was determined by elisa.results phellinus linteus can prolong eac mouse's life and can increase the il-2 concentration in serum of tumorous mouse but can't affect the immune effect of tumorous mouse.conclusion chinese hurb phellinus linteus possess some antitumor power for tumor-loaded mice,but further research is needed.

目的 观察桑黄对肿瘤的抑制作用及对机体免疫功能的影响。方法以小鼠艾氏腹水癌的生命延长率评价桑黄的抗肿瘤作用，以炭末廓清实验观察荷瘤小鼠非特异性免疫功能，以elisa法测定荷瘤小鼠血清il-2浓度。结果桑黄对eac荷瘤小鼠的生存时间有延长作用，对荷瘤小鼠血清il-2浓度有提高作用，对荷瘤小鼠非特异性免疫功能无明显影响。结论中药桑黄对荷瘤小鼠具有一定的抗肿瘤能力，作用的强度和作用机制的深度还有待进一步研究。

Results: In 6 patients the relationship of Broccas area and precentral motor area to the frontal lobe tumor was identified allowing pre-operative neurosurgical planning to minimize language and motor disruption. Diffusion tensor images were corrupted by motion in one patient but successfully demonstrate the impact of tumor on white matter tracts in 5 patients. Fractional anisotropy images, showed disruption of the left arcuate fasciculus in one patient, deviation/deformation in 2 cases and unaffected by tumor in the remaining two cases.

因刺激任务为按键反应模式，5例肿瘤患者双侧均可见初级运动皮质(M1)和辅助运动区的激活，1例因右侧肢体瘫痪而只显示右侧M1的激活。1例患者在DTI扫描过程中头动明显而失败，5例肿瘤患者FA图显示良好，纤维束重建后1例可见弓状束的浸润破坏，2例伴有弓状束变形及移位，2例弓状束未见破坏或移位。

Methods 21 cases of craniopharyngoima in suprasellar region were resected by trans-supraorbital approach, the diameter of tumors varied from 3.0 to 6.5cm; partial cystic tumor in 13 and solid tumor in 8. Skin incision was made in eyebrow, the hemicycle bone flap was approximately 2.5cm×3.0cm, tumor was dissected in I,II,III spaces and trans-endplate.

对21例位于鞍上，肿瘤上下径为3.0～6.5cm的颅咽管瘤患者(部分囊性变者13例，完全实性者8例)，作眉弓内弧形小切口，在眶上铣开一为2.5cm×3cm的半圆形小骨瓣，术中根据肿瘤位置，从I、II、III间隙和终板入路切除肿瘤。

Intradermal tumor model of B16 cells in C57BL mice is helpful to monitor tumor growth in early and middle stages and is one of ideal models in tumor studies.

B16细胞皮内移植瘤模型易于对肿瘤生长的观察和测量，是早、中期肿瘤研究的合适模型之一。

These EM images clearly discovered that:(1) all the tested tumor cells came into being CPE;(2) the CPE can be divided into two kinds: The first one is those viruses propagate in a large amount and lyse tumor cells. The other is that viruses propagate to some degree and induce tumor cells apoptosis.

电镜图像明显地揭示出：(1)上述受试肿瘤细胞均产生了CPE；(2)受试肿瘤细胞出现的CPE分为两类，一种是病毒大量增殖，细胞裂解死亡；另一种是病毒有一定量增殖，并诱导肿瘤细胞凋亡。

Pathology and ultrastructure detection revealed cell necrosis and collapse, sever nuclear damage was observed in the death cells. The early characteristics of necrosis such as margination of heterochromatin was also found in some tumor cells. Besides, well differentiated tumor cells, degenerative tumor cells and some lymphocytes were seen.

直形针给药组肿瘤组织早期表现为大片的组织坏死，晚期表现为存活区域的增加，坏死区域与存活区域界限分明，两者间多有移行带；弧形针分段扇形注药者早期、晚期组织均表现为大片坏死，肿瘤间质内可见淋巴细胞浸润和纤维结缔组织增生；各时间段的检测标本中都可见一定数量的凋亡细胞，但比例远远小于坏死的肿瘤细胞。

Results It is significant that the difference between the data of display difference of tumor and surrounding tissue in different voltage conditions. It is significant that the difference between the data of tumor size difference in different voltage conditions. It is significant that the difference between the data of the CT value of tumor and other side masseter.

实验结果不同电压下肿物与周围组织关系显示情况的差异有统计学意义，不同电压下测量肿物大小的数据间差异有统计学意义，不同电压下肿物与正常组织CT值变化的差异有统计学意义。

Results Of the twelve patients, seven cases were right ventricular tumor (58.3%) and live cases were left ventricular tumor (41.7%). Eight patients had undergone the tumor resection. Five cases were myxoma, other three cases were lipoma. angeioma and malignant mesothelioma respectively.

结果 超声诊断心室占位12例，其中右室占位7例(58.3%)，左室占位5例(41.7%)，手术8例，术中所见与超声诊断一致，符合率为100%，病理证实黏液瘤5例，脂肪瘤l例，血管瘤l例，恶性间皮瘤1例。

By in situ hybridization, 53BP2 mRNA expression is revealed in tumor cell nests of NPC paraffin sections. The strong positive particles localize in the nuclei of tumor cells; but slight positive signals are also found in tissue cells of chronic nasopharyngitis and connective tissue, such as lymphocytes and smooth muscle cells; There are also positive signals in the nuclei of hyperplastic squamous epithelial cells. However, 53BP1 mRNA expression is not found in nuclei of tumor cells, tissues of chronic nasopharyngitis and connective tissue.

原位杂交结果显示，石蜡切片的鼻咽癌癌巢内，可见53BP2的强阳性表达信号，信号呈紫色颗粒状分布于胞核，核仁清晰可见；而在相同条件下，在慢性鼻咽炎组织和癌旁上皮的结缔组织，也可见弱表达信号，如淋巴细胞和平滑肌细胞；在增生的鳞状上皮细胞的核内，可找到强阳性信号。53BP1在鼻咽癌、慢性鼻咽炎组织和癌旁上皮的结缔组织切片上，均无表达信号。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。