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Moreover, expression of a constitutively active form of Notch4 in mammary epithelial cells inhibits epithelial differentiation and leads to tumor formation in this organ.

再者，乳腺上皮细胞中一种持续活化形式Notch4的表达也能抑制上皮细胞的分化，从而导致肿瘤形成。

In the late proliferative and secretive phases, expression of ERα in stromal cells significantly decreased to the level observed in the desquamative phase Differently, no clear expression of ERβ was detected in stromal cells in the late proliferative phase. However, its expression appeared again in the secretive phase.

结果显示： 1ERα和ERβ在恒河猴子宫内膜的上皮细胞、基质细胞中均有表达，其表达水平在正常月经周期中发生周期性变化：上皮细胞中两种受体的表达水平从增殖期开始逐渐升高，到增殖晚期最高；分泌期开始下降，直到月经期的水平。

The studies on separation of antibacterial substances and the identification by GC-MS indicate that: Eleocharis Tuberoses peel contains cholesterol, organic acids, eaters and flavonoids four types of active ingredients, and 11kinds of active material.

对荸荠皮抑菌物质纯化后进行的GC-MS鉴定结果显示：荸荠皮抑菌物质中含有甾醇类、有机酸类、酯类和黄酮类4类活性成分共11种活性物质。

Biotinylated lectins:UEA-Ⅰ, RCA-Ⅰ, DBA, PSA, PNA, BSL, LCA, WGA, ConA AND SBA were used as probes to identify lectin binding sites and to determine if lectin binding patterns change with age in the developing of human fetal esopha geal epithelium (8W, 14W, 20W, 28W and 32W).

采用十种生物素化凝集素UEA-I、DBA、PSA、B SL、PNA、LCA、RCA-I、SBA、ConA及WGA分别对8W、14W、20W 28W及32W的人胎儿食管上皮进行研究，以确定胎儿食管上皮在发育过程中凝集素的结合位点以及结合方式随年龄的变化。

We conclude that (1) S100A1 is a specific and sensitive immunohistochemical marker to differentiate nephrogenic adenoma from prostatic adenocarcinoma;(2) AMACR immunostaining does not seem to be a useful marker in distinguishing between these 2 lesions;(3) given that both S100A1 and AMACR have been reported to be expressed in renal tubular cells and in a subset of renal cell neoplasms, our findings confirm the histogenetic relationship between nephrogenic adenoma and renal tubular epithelium.

我们总结认为：（1）鉴别肾源性腺瘤和前列腺腺癌，S100A1既特异又敏感；（2）AMACR免疫染色鉴别这两种病变，效用不佳；（3）文献报道S100A1和AMACR均表达于肾小管上皮和部分肾细胞肿瘤，在此前提下，我们的结果证实了肾源性腺瘤和肾小管上皮之间的组织发生关系。

An ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate, 1E-3MI-TFB) modified micellar electrokinetic capillary chromatographic method was developed to separate and determine isoquercitrin, chlorogenic acid and quercetin.

建立了一种离子液体（1-乙基－3-甲基咪唑四氟硼酸盐，1E-3MI-TFB）修饰毛细管胶束电动色谱法分离测定异槲皮甙、绿原酸和槲皮素的方法。

Results showed a close relationship existed among the three flavonoid compounds with kaempferol content greater than quercetin and isoquercetin.

结果表明：青钱柳叶中3种黄酮类化合物质量分数紧密相关，其中山奈酚质量分数高于槲皮素和异槲皮苷。

Lithocarpus polystachyus Rehd with rich valuable flavonoid and phloridzin, is an abundant plant resource in our country, located mainly as wild plants in the mountain area in southern China, and its rich resource of flavonoid and phloridzin has not been developed.

多穗柯是我国特有的一种丰富植物资源，富含价值很高的黄酮类及其根皮苷，目前主要以野生状态分布于江南山区，其丰富的黄酮类及其根皮苷资源尚处于完全未被开发利用状态。

Barrett's esophagus, the most important risk factor in the deelopment of adenocarcinoma of the esophagus, is a metaplastic condition in which the normal squamous epithelium of the esophagus is replaced by columnar or glandular epithelium.

Barrett食管，是食管的正常的鳞状上皮被柱状或腺状上皮所取代的一种化生状态，为食管腺癌的发生中的最重要的危险因素。

Barrett's oesophagus is a metaplastic change of the lining of the oesophagus, such that the normal squamous epithelium is replaced by specialised or intestinalised columnar epithelium.

Barrett食管是一种食管黏膜的化生改变，即正常鳞状上皮被特化或肠化的柱状上皮所取代。

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。