上皮

After amputation, the expression of desmin appears first in the distal end epidermis and the peritoneum 4 d PA. The expression in the peritoneum lasts to the 14 d PA when expression of desmin appears in the musculature, while that in the distal end epidermis only lasts to the 8 d PA when the connective tissue below begins to express desmin. Moreover, from the 4 d PA, musculature and epidermis of the tube foot begin to express desmin and the expressions last to the 20 d PA. From 8-14 d PA, musculature of the ambulacral plate expresses myogenin and the peritoneum also expresses myogenin from 14-20 d PA. All these results indicate that precursor cells for muscle regeneration in adult starfish A.rollestoni are mainly from the distal end epidermis and the parietal peritoneum.

创伤后第4 d，顶端表皮层及体腔上皮中首先出现了desmin表达，体腔上皮中desmin的表达一直持续到第14 d，此时其上方的肌肉组织中也出现了desmin表达；而顶端表皮层中desmin的表达仅持续到第8 d，同时其下方的结缔组织也开始表达desmin；此外，从第4 d起，管足肌肉及管足表皮层开始表达myogenin，且该表达一直持续到创伤后的第20 d；而第8 d起，步带板肌肉也出现了myogenin的表达，此表达一直持续到第14 d；从第14 d起，体腔上皮也出现myogenin表达，且一直持续到第20 d。

Results The expression level of ERβ was moderate or highter in stroma cell, anterior pigment epithelium as well as pasterior pigment epithelium of the iris, unpigmented epithelium, pigmented ciliary epithelium and vascular endocemet of the choroid layers.

结果 ERβ在虹膜基质细胞、虹膜前后两层色素上皮细胞、睫状体非色素上皮和色素上皮、脉络膜各层血管内皮的表达水平主要呈中表达或高表达；ERα则表达不明显。

Cells of which DNA contents were more than 4C were 58.4%,which indicated the existence of proliferative vigorousness.

TM上皮细胞核面积及核周长介于正常上皮细胞与癌细胞之间，与后两者相比均有显著性差异（P＜0.01），反映TM上皮细胞核有一定的异型性。

RESULT: 1.Ouabain act on lens sodium-pump,under the LM,lens anterior capsular membrane discontinuous,epithelium cells clustered,occluding zonule seperated,lens fiber layers fractured.Under the EM,cells totally hollowed,mitochondria swelling,myelin figure appeared.RT-PCR examine the expression condition of αsubunit of sodium pump on mRNA level,α1、α2 and α3-isoform are all decreased.2.Digoxin act on lens sodium-pump,under the LM,lens cell oedema,linkage distructed,extensive exfoliation.Under the EM,plasma appeared little half-transparant hollow region,mitochondria swelling and ridge disappeared. RT-PCR examine,α1、α2 and α3-isoform are all decreased.3.Amphotericin B act on lens sodium-pump,under the LM,lens epithelium cells linked tightly,arranged in-line,lens fiber layers arranged tightly and regularily.Under the EM,abbundant cellular organes,exuberant cells function indicated. RT-PCR examine the expression condition of αsubunit of sodium pump on mRNA level,α1 and α3-isoform are increased significantly,demonstrated isoform-specific action.4D-thyroxine act on lens sodium-pump,under the LM,lens plasmalemma integrated,cells arranged tightly and regularily.Under the EM,nucleus fission appeared,desmosome half-desmosome and tensile microfilaments linked the cells. RT-PCR examine,α2 and α3-isoform are increased, also demonstrated isoform-specific action.5.Vitamin E act on lens sodium-pump,under the LM,lens anterior capsular membrane continuous and smooth,epithelium cells tightly linked,lens fiber layers appearede hollow region occasionally.Under the EM,lateral membrane high density belt appeared,abundant nucleolus. RT-PCR examine,onlyα1-isoform are increased, demonstrated significantly isoform-specific action.6.DMSO act on lens sodium-pump,under the LM,lens anterior capsular membrane slightly thicker,cells linkage partly distructed.Under the EM,plasmalemma denaturation,mitochondria swelling.RT-PCR examine,α1、α2 and α3-isoform are all altered slightly and haven't significant meanning.

结果：1、哇巴因作用于晶状体钠泵后，光镜下晶状体前囊膜断裂、上皮细胞聚积、闭合连接分离、纤维板层裂隙，电镜下全层细胞空泡化、线粒体肿胀出现髓样结构，RT-PCR法检测晶状体钠泵α亚单位α1、α2及α3三种重整异构体在mRNA水平的表达均减弱。2、地高辛作用于晶状体钠泵后，光镜下晶状体细胞水肿、细胞连接破坏、广泛剥离，电镜下胞质见少许半透明空化区、线粒体肿胀嵴消失，RT-PCR法检测晶状体钠泵α亚单位α1、α2及α3三种重整异构体在mRNA水平的表达均减弱。3、两性霉素B作用于晶状体钠泵后，光镜下晶状体上皮细胞紧密连接、线状排列、纤维板层紧密规整，电镜下细胞器丰富、细胞功能旺盛，RT-PCR法检测α1及α3表达显著增强、具有一定的重整异构作用特异性。4、D甲状腺素作用于晶状体钠泵后，光镜下晶状体质膜完整、细胞排列紧密规整，电镜下胞核见分裂像、细胞间有桥粒、半桥粒及张力微丝，RT-PCR法检测α2及α3表达均增强、亦有一定的重整异构作用特异性。5、维生素E作用于晶状体钠泵后，光镜下晶状体前囊膜连续光滑、上皮细胞紧密连接、纤维板层偶见空化，电镜下囊侧膜内有高电子密度带、细胞核仁丰富，RT-PCR法检测仅有α1的表达显著增强、具有极强的重整异构作用特异性。6、二甲基亚砜作用于晶状体钠泵后，光镜下晶状体前囊膜轻度增厚、细胞连接部分破坏，电镜下质膜变性、线粒体肿胀，RT-PCR法检测晶状体钠泵α亚单位α1、α2及α3三种重整异构体在mRNA水平的表达无显著改变。

The expressions of E-cadherin and α-catenin in specimens of 54 breast carcinomas and 21 normal breast tissues around tumor were measured by immunohistochemical method. Results In normal breast tissues, E-cadherin and α-catenin were expressed on cell membrance of ductal and acinic cells. No abnormal expressions were found in normal breast tissues. The abnormal expression rates of E-cadherin and α-catenin in breast cancer were 51.9% and 63.0% respectively.

结果 21例癌旁正常组织中，上皮钙黏蛋白和α-连接素均主要定位于腺泡或导管上皮细胞膜上，显示了细胞－细胞间交界和细胞轮廓，二者均表达正常；54例乳腺癌组织中上皮钙黏蛋白和α-连接素的异常表达率分别为51.9%和63.0%。

Results The tissue of 3 cases of ACC in the esophagus was mainly composed of square shape gland epithelial cell and variant myoepithelial cell, mesh shape cavity crack and the tubular, the entity shape arrangement, the cavity crack content basophilia and acidophilia the secretion. There was transmigration of superficial epidermis in 1 case of ACC; All 3 cases were positive of CK, H-CK, P63, S-100 (endochylema /nucleus), EMA, and Bcl-2. Case 3 was positive of CerbB-2 and P53. Case 2 was CD117, AAT, SMA, PAS/AB.

结果 3例食管腺样囊性癌的癌组织主要由立方形腺上皮细胞和变异的肌上皮细胞组成，呈筛孔状腔隙、管状、实体状排列，腔隙内含嗜碱性和嗜伊红分泌物；3例食管腺样囊性癌中例1表面上皮有移行；免疫组化：3例CK、H-CK、P63、S-100、EMA、Bcl-2均，例3 CerBb-2，P53，例2 CD117，AAT、SMA，PAS/AB。

Among the 3 novel sequences, C24 sequence and C57 sequence were expressed both in cataractous group and in normal group; C24 sequence was expressed higher in cataractous group than that in the normal group, but C57 sequence had no significant difference in normal and cataractous group; C40 sequence was expressed in the cataractous lens epithelium but the expression in normal lens epithelium was not seen.

三个新序列中，C24号和C57号序列在年龄相关性白内障和正常晶状体上皮细胞中均有表达，C24号序列的表达增高；C57号序列在正常组和白内障组中的表达无差异。C40号序列在年龄相关性白内障晶状体上皮细胞中有表达，但其在正常晶状体上皮细胞中未见表达。

AbstractWe present the early diagnosis method of agerelated macular degeneration , and characterize various pathological changes arising in the development of AMD, such as drusen, chorioretinal mapshrinking, retinal pigment epithelial atrophy, choroidal neovascularization, retinal pigment epithelium and neural epithelial detachment, and so on. We analyze its images by using optical coherence tomography.

本文给出了一种老年性黄斑变性（agerelated macular degeneration， ARMD ）的早期诊断方法，在 ARMD 的发展过程中出现的各种病理改变如玻璃膜疣、脉络膜视网膜地图状萎缩、视网膜色素上皮萎缩、脉络膜新生血管、视网膜色素上皮/神经上皮脱离等，用光学相干断层成像技术（optical coherence tomography，OCT）对其进行图像分析。

AbstractWe present the early diagnosis method of agerelated macular degeneration , and characterize various pathological changes arising in the development of AMD, such as drusen, chorioretinal mapshrinking, retinal pigment epithelial atrophy, choroidal neovascularization, retinal pigment epithelium and neural epithelial detachment, and so on.

本文给出了一种老年性黄斑变性（agerelated macular degeneration，ARMD）的早期诊断方法，在ARMD 的发展过程中出现的各种病理改变如玻璃膜疣、脉络膜视网膜地图状萎缩、视网膜色素上皮萎缩、脉络膜新生血管、视网膜色素上皮/神经上皮脱离等，用光学相干断层成像技术（optical coherence tomography，OCT）对其进行图像分析。

Although ERβ was also seen in these cells,there was irregularity of its distribution.Weak to moderate cytoplastic staining of ERβ in epithelial cells of lobules and ducts were fonud.

ERβ在小叶上皮细胞和导管上皮细胞的细胞核内检测到，但是ERβ在上皮细胞中的分布并无规律，而且在细胞浆内也可以检测到弱到中等强度的染色。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。