组织细胞

The results were as follows:The pituitary of Long-snout catfish included adenohypophysis and neurohypophysis. The adenohypophysis have six-cell types in common,i.e adrenocorticotro-phs,lactot-rophs,somatotrophs,gonadotrophs, thyrotrophs, and Melanotroph cells. In neurohypophysis, there were three types of neurosecretory fibres, types A1,A2 and B.There were different typesgranules in type A neurosecretory fibres axone.In type B neurosecretory fibres axone, there were many small transparent vesicles.

结果表明：长吻魷脑垂体包括腺垂体和神经垂体两个部分，腺垂体组织中有六种分泌细胞即促肾上腺皮质激素分泌细胞、催乳激素分泌细胞、生长激素分泌细胞、促性腺激素分泌细胞、促甲状腺激素分泌细胞、促黑色素细胞刺激激素分泌细胞；神经垂体组织中存在A型(A_1、A_2)和B型神经分泌纤维，A型分泌纤维轴突中具有不同类型的分泌颗粒，B型分泌纤维轴突中含有许多透明小囊泡。

The results were as follows: The pituitary of Long-snout catfish included adenohypophysis and neurohypophysis. The adenohypophysis have six-cell types in common,i.e adrenocorticotro-phs,lactot-rophs,somatotrophs,gonadotrophs, thyrotrophs, and Melanotroph cells. In neurohypophysis, there were three types of neurosecretory fibres, types A1,A2 and B.There were different types'granules in type A neurosecretory fibres axone.In type B neurosecretory fibres axone, there were many small transparent vesicles.

结果表明：长吻魷脑垂体包括腺垂体和神经垂体两个部分，腺垂体组织中有六种分泌细胞即促肾上腺皮质激素分泌细胞、催乳激素分泌细胞、生长激素分泌细胞、促性腺激素分泌细胞、促甲状腺激素分泌细胞、促黑色素细胞刺激激素分泌细胞；神经垂体组织中存在A型(A_1、A_2)和B型神经分泌纤维，A型分泌纤维轴突中具有不同类型的分泌颗粒，B型分泌纤维轴突中含有许多透明小囊泡。

This result indicates that WT1 gene plays an important role in differentiation and development of fetal kidney and may be the factor that promotes metanephric blastemal cell to differentiate into epithelial cell.

结果显示小胎龄肾组织中WT1蛋白在胚基细胞和幼稚肾小球细胞核表达而大胎龄组肾组织中WT1在肾小管细胞胞浆表达，阳性率分别为57.1％(8/14)和46.2%(6/13)，提示WT1基因在胚胎肾分化发育的过程中起着重要作用，WT1蛋白可能是促进后肾胚基细胞向上皮细胞分化的调控因子，其表达在时间上和空间上都受到严格的调控，WT1的表达异常可能导致胚基细胞分化停滞。17例肾母细胞瘤WT1蛋白表达阳性率为41.2%(7/17)，阳性部位在胚基型和上皮型肿瘤细胞核，表达部位和阳性率与早期胚胎肾相似，其中间质型肾母细胞瘤均为阴性，胚基型和上皮型肾母细胞瘤阳性率70%(7/10)，两组间阳性率有显著差异。

During the development of dental germ, enamel matrix proteins secreted by epithelial root sheath could induce dental follicle cells to differentiate towards cementoblast and form acellular cementum finally on the surface of tooth root. Many researches of domestic and oversea scholars suggest that enamel matrix proteins could effectively induce periodontal regeneration, and the structure and function of this regenerated tissue are similar to healthy periodontal tissue. Moreover, the regeneration process is nearly the same to that of embryonic development of periodontal tissue.

自发现釉基质蛋白可诱使牙囊细胞向成牙骨质细胞方向分化并在根表面形成无细胞性牙骨质以来，国内外学者做了大量研究，结果表明釉基质蛋白能有效诱导牙周组织的再生，且这种再生组织的结构和功能更接近于健康的牙周组织，并且再生过程也与牙周组织的胚胎发育过程类似。

Autologous MSC can be obtained easily,their source in human are plenty , own active proliferationand potential to difference into chondroblast.

自体骨髓基质干细胞来源丰富，取材容易，具有旺盛的增殖能力及向成软骨细胞分化的潜能，已成为软骨组织工程的首选种子细胞，但MSC诱导分化为成软骨细胞且应用于软骨组织工程的技术尚不十分完善，目前主要采用的技术为细胞团块离心管培养，其构建的软骨组织在力学性能上很难达到关节软骨的要求。

Autologous MSC can be obtained easily, their source in human are plenty, own active proliferation and potential to difference into chondroblast. Now MSC become the chief seed-cell in cartilage tissue engineer, but the technology to stimulate MSC differentiate into chondroblast is not very successful, the standard technology is culture the cell-ball in centrifuge tube, the reconstructured cartilage-like tissue is not achieve the mechanics of hyaline cartilage.

自体骨髓基质干细胞来源丰富，取材容易，具有旺盛的增殖能力及向成软骨细胞分化的潜能，已成为软骨组织工程的首选种子细胞，但MSC诱导分化为成软骨细胞且应用于软骨组织工程的技术尚不十分完善，目前主要采用的技术为细胞团块离心管培养，其构建的软骨组织在力学性能上很难达到关节软骨的要求。

Autologous MSC can be obtained easily,their source in human are plenty , own active proliferationand potential to difference into chondroblast. Now MSC become the chief seed-cell in cartilage tissue engineer , but the technology to stimulate MSC differentiate into chondroblast is not very successful,,the standard technology is culture the cell-ball in centrifuge tube,the reconstructured cartilage-like tissue is not achieve the mechanics of hyaline cartilage.

自体骨髓基质干细胞来源丰富，取材容易，具有旺盛的增殖能力及向成软骨细胞分化的潜能，已成为软骨组织工程的首选种子细胞，但MSC诱导分化为成软骨细胞且应用于软骨组织工程的技术尚不十分完善，目前主要采用的技术为细胞团块离心管培养，其构建的软骨组织在力学性能上很难达到关节软骨的要求。

Methods BMSCs isolated from rabbit iliac bone marrow were culture-expanded in vitro. The injectable tissue-engineered bone constructed from autologous PRP, FG, and BMSCs was cultured in vitro, and its biological characteristics were observed including the time of gel formation, histological features, seed cell survival and microscopic structures. Results The constructed injectable tissue-engineered bone began gel formation within 20 to 30 s, and after a week-long culture, the gelatine began to degrade, and numerous well viable fusiform cells could be seen to adhere to the bottom of the Petil dish, Scanning electron microscopy identified globular and olivary cells embedded in the fibrin glue, and numerous small particles could be seen around of the cells.

从兔髂骨处抽取骨髓体外培养BMSCs并诱导向成骨细胞分化，抽取兔自体动脉血提取PRP，以FG、BMSCs、PRP共同构建可注射型组织下程骨并体外培养观察其生物学特性如凝胶形成时间，组织学特点、细胞存活情况及其超微结构特征等结果构建的可注射型组织工程骨可在短时间内形成凝胶，体外培养1周时其中细胞生长良好，电镜下见纤维蛋白网格结构致密，种子细胞及血小板颗粒分布广泛。

Methods The expression of caspase-3 and PCNA was detected by tissue microarray and immunohistochemical method in 95 hepatocellular carcinoma tissues,68 parahepatic cancer tissues and 19 normal liver tissues.

目的 探讨Caspase-3和PCNA在肝细胞肝癌的表达及其在肝细胞肝癌发生、发展中的作用方法应用组织芯片技术和免疫组化方法检测95例肝细胞肝癌组织、68例癌旁组织和19例正常肝组织中Caspase-3和PCNA的表达。

Three-dimensional Matrigel constructs contained aleolar forming units comprised of cells displaying AE2 cellular ultrastructure while expressing the SpC gene and gene product. The addition of tissue-specific growth factors induced formation of branching, sacculated epithelial structures reminiscent of the distal lung architecture.

通过对细胞亚微结构的观察和对SpC基因及其表达产物的分析，研究者发现培养体系中肺组织形成单位中具有能向肺泡II型上皮细胞分化的细胞；而通过添加组织特异性的生长因子，他们还发现这一做法会促进培养组织形成具有分支和囊状上皮结构的类似终末肺泡组织的形态结构。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。