瘤形成

Methods 93 patients(63 men and 31 women,average aged 36.6 years)with soft-tissue mass in the skin of scalp proved by surgical pathology(n=41),bioscopy(n=13) or clinic information(n=39) were analyzed.

将头皮软组织肿块定义为凡于颅骨外板之外的头皮中所形成软组织肿块，包含累及或未累及颅骨的肿块(不包含外伤性头皮血肿及新生儿产瘤、原发颅骨肿瘤)。

In this paper,the process of built-up edge formation is studiedby means of a high frequency camera.

本文借助高频摄影机研究积屑瘤的形成过程。

METHODS: MTT calorimetric method, trypin blue exclusion,colony formation and H22-bearing mouse model.

噻唑蓝法、台盼蓝拒染法、集落形成以及H22荷瘤小鼠模型。

The expressions of MUC1, MUC3 were not synchronization in different lesions of cholecyst.

结论MUC1和MUC3在结石性胆囊炎及胆囊腺瘤样息肉中的表达呈负相关，这可能与结石形成及胆囊癌前病变有关。

Methods 58 cases were operated upon microsurgery to resect the pseudoneuroma or cicatrix and to repair nerve.

对神经干连续性存在，而有神经膜内神经瘤或瘢痕形成之病例进行显微外科手术切除与重建治疗。

The expression level of metabolitic enzyme (CYP1A1, CYP1B1) and its correlation with cell differentiation /apoptosis were studied as well. The influence of resveratrol in cell cycle was determined with FCM. Results 1 Resveratrol not only suppresses the growth of medulloblastoma cells in a dose and time related fashion but also induces cell differentiation and apoptosis. Resveratrol promotes differention of UW228-1,-2 cells to forward glia, UW228-3 and Med-3 cells to neuron. A treatment of resveratrol in the concentration of 100μM for 48hrs comit most of cells die of apoptosis. 2 Among the four cell lines Fas and Caspase-3 were constantly expessed, whereas FasL was absent irrespective to the drug treatment. 3 ICC, RT-PCR, Western-blot hybridization and EROD enzymatic activity assay demonstrated that expression of CYP1A1 is different after treatment with resveratrol in four cell lines, up-regulated in three UW228 cell lines in a dose dependent manner but down-regulated in Med-3 cells. Suppressive effect of resveratrol on CYP1B1 expression is the same among four medulloblatoma cell lines. 4 Cell cycle distribution of UW228-3 was greatly changed after treatment.

结果：1、白藜芦醇以时间和剂量依赖性方式抑制髓母细胞瘤细胞生长，同时促进细胞的分化和凋亡：白藜芦醇促使UW228-1、-2靶细胞向神经胶质细胞方向成熟分化，UW228-3、Med-3细胞向神经元细胞方向成熟分化，以100μM作用48小时效果显著；2、四个细胞系均有Fas和Caspase-3表达，但无Fas-L基因表达和蛋白活性产生，因此难以形成Fas相关性死亡通路；3、白藜芦醇处理前后CYP1A1基因的表达在各细胞系略有不同：UW228-1，-2，-3三个细胞系白藜芦醇以剂量相关性方式上调CYP1A1的表达，而Med-3细胞系，白藜芦醇却抑制CYP1A1的表达；四个细胞系在白藜芦醇处理后CYP1B1的表达均受到抑制；4、UW228-3细胞系经白藜芦醇作用后细胞周期有较大改变，表现在G0/G1期在整个细胞周期中所占的比例增加，而其它时期则相应减少。

Hybridization signals were identified in the nuclei of tumor cells and the positive cells distributed diffusively or focally. Tag expression was found in 75 human brain tumor tissues out of 96 SV40 DNA positive cases. Tag-RB specific complex was found in all of 75 Tag positive cases.

SV40 DNA定位于肿瘤细胞核，阳性细胞呈弥漫或片灶状分布。96例SV40 DNA阳性脑瘤组织Tag表达阳性75例，所有Tag表达阳性瘤组织均发现Tag与RB形成特异性复合物。

Under appropriate conditions, EG cells formed embryoid bodies in suspension culture and multiple types of differentiated cells in monolayer culture.

EG细胞在裸鼠体内形成畸胎瘤，包含来自三个胚层的分化细胞。

Among all 9 cases, 8 showed necrosis or cystic changes, none showed hemorrhage and invasion of adjacent bone, but 3 showed adjacent blood vessel encasement and 1 showed tumor thrombosis in the adjacent vein.

全部9例患者的病变中8例可见坏死或囊变，均未见出血以及邻近骨骼破坏，但3例包绕邻近血管，1例形成静脉瘤栓。

In type Ⅲ, the perispore is thin and the surface ornamentation is formed by the exospore.

孢子钝三角形，三裂缝，沿裂缝两侧各有一脊状隆起或瘤状纹饰；周壁薄，由外壁形成表面纹饰的基本轮廓；具赤道环、近极脊和远极脊。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。