小胞

Results: The expression of CTGF protein and CTGF mRNA in the nomal and sham operation group is low in the intracytoplasm of Mesangial cells, renaltubular epithelial cells and renal interstitial cells. Compare with sham operation group, the expression of CTGF protein and CTGF mRNA as yellow particulate in the mode group was markedly increased, and the fibrosis of nephridial tissue is obvious. Panaxnotoginseng could significantly decrease the expression of CTGF protein and CTGF mRNA(P.05), and there was no significant difference between Panaxnotoginseng treatment group and Benazepril treatment group.

结果：正常组及假手术组肾小球系膜细胞、肾小管上皮细胞以及肾间质细胞胞浆内有少量CTGF蛋白及其mRNA的黄色颗粒状阳性反应物，模型组上述部位的CTGF蛋白及其mRNA呈强阳性表达，三七总皂苷组上述指标表达较模型组显著减少，有统计学差异(P.05)，与阳性药物组比较差异不显著。

High-level expression of secreted Flt-1(2-3) with good bi ological activity were successfully achieved in Pichia.pastoris expression syst em and can be applied to further animal and clinical test.

获得了具有生物学活性的可溶性重组F lt-1受体胞外区2-3loop小片段，为进一步的动物实验和临床应用打下了基础。

The study showed that the biosorption process could be described well by pseudo-second-order kinetic model and Freundlich isotherm model.Higher cell concentration was favorable to the biosorption.Temperature's effect on the biosorption was not obvious.The oxygenous and nitrogenous functional groups on the cell wall played a very important role in the process of biosorption.Microdeposits were formed by int...

结果表明，菌体对银的吸附量可达91.75 mg/g，吸附过程符合Pseudo-second Order吸附动力学模型，相关系数高达0.999 9；吸附热力学很好地符合Freundlich吸附等温模型，相关系数为0.99；考察菌体浓度和温度对吸附的影响发现，菌体浓度增加有利于对银离子的吸附，温度对吸附影响较小；FTIR、SEM及EDAX实验结果表明吸附存在2种吸附机理，一为菌体表面一些含氮氧的基团对Ag+的络合作用，二为菌体分泌的胞外多糖等物质对Ag+的微沉淀成晶作用。

After injection of FG into the NTS, FG retrogradely labeled neurons were present bilaterally with a strong ipsilateral predominance in the hypothalamic regions, such as medial and lateral parvicellular portion of the paraventricular nucleus, posterior

将FG注入孤束核后，在下丘脑室旁核小细胞部、穹窿周区、下丘脑后区及弓状核等核团内都观察到数量较多的FG逆行标记神经元；EM1和EM2阳性神经元的胞体主要位于下丘脑背内侧核、腹内侧核

In normal bladder tissue, AQP1 mainly expressed in the endothelial cells of capillary and arteriolar under the mucous membrane of urinary bladder,AQP2 and AQP3 expressed in the celluar membrane and periplasm of the mucous membrane of urinary bladder.

AQP1在正常膀胱组织中主要表达于膀胱黏膜下微血管和小动脉的内皮细胞， AQP2和AQP3表达于膀胱黏膜上皮细胞的细胞膜及胞质中。

The small granulocytes, with an average diameter of 12 .82±1.54 μm and appearance of short pseudopodia, have a large number of small and homogeneous basophilic cytoplasmic granules.

m，胞质中仅含有少量颗粒，细胞核对台盼蓝呈阳性反应，核质比较大；小颗粒细胞约占血细胞总数的50.7%，平均直径为12.82±1.54？

The cytologic features of normal squamous epithelial cells can be seen at the center top and bottom, with orange to pale blue plate-like squamous cells that have small pyknotic nuclei.

在涂片的中央上方和底部我们可以观察到正常鳞状上皮细胞的细胞学特征，鳞状细胞呈圆形，胞浆呈橘黄色，小的淡蓝色的固缩核。

Results:①The amount of human colon carcinoma cell line SW480 treated by quercetin decreased. The morphology of partial SW480 cells was shrunk volume, integrated cell membrane, condensed cytoplasm, pyknotic chromatin, nuclear fragmentation. Apoptotic Corpuscles were found by electron microscope.②MTT colorimetric assay showed quercetin inhibited the growth of human colon carcinoma cell line SW480 in a time- and dose-dependent manner when the concentration of quercetin was 30、60、90μmol/L.③Flow cytometry analysis showed the cell cycle of SW480 cell was restricted in G1/S. G0/G1 phase rate increased and S phase rate decreased with increasing concentration of quercetin and time lasting.④ Zymogram analysis assay showed the secretion of matrix metalloproteinases in human colon carcinoma cell line SW480 treated by quercetin decreased. With increasing concentration of quercetin, the secretion of MMP-2 and MMP-9 decreased.⑤Immunohistochemistry method demonstrated the position expression of Cathepsin-D in SW480 cell was suppressed by quercetin in a time- and dose-dependent manner.

研究结果：经槲皮素处理的人结肠癌SW480细胞数量减少，部分细胞体积缩小，细胞膜完整，胞浆浓缩，核染色质固缩，细胞核碎裂，形成凋亡小体；MTT法检测显示当作用浓度为30μmol/L~90μmol/L时，槲皮素对人结肠癌SW480细胞的生长有抑制作用，其抑制作用随着作用浓度的增加和作用时间的延长而增强；流式细胞学发现槲皮素主要作用于人结肠癌SW480细胞周期的G1/S期，大部分细胞被阻断于S期，随药物浓度的升高和作用时间的延长，G0/G1期细胞比例逐渐增加，S期细胞比例逐渐减少；酶谱分析法检测显示不同浓度的槲皮素能够抑制人结肠癌SW480细胞分泌MMP-2及MMP-9，随浓度的升高，MMP-2及MMP-9的分泌量减少；免疫组织化学法显示不同浓度的槲皮素处理人结肠癌SW480细胞后，Cathepsin-D的表达随药物浓度的升高和作用时间的延长而降低。

These abnormal changes mainly occurred at two stages:(1) at meiotic prophase, almost half of Peiai 64S microsporocytes exhibited aberration, with sparse free ribosomes, underdeveloped mitochondria and many swollen endoplasmic reticula.

这些变化主要发生在两个阶段：（1）减数分裂前期，约半数的小孢子母细胞的胞质出现异常，游离核糖体稀少，并具有不发育线粒体和大量泡状内质网。

A lot of organelles such as mitochondria, rough endoplasmic reticula and Golgi bodies were observed in fiber cell. Then, double karyotheca disappeared, and the organelles disintegrated. Multivesicular bodies appeared in fiber cytoplasm. With the further development of fiber, fiber wall underwent continual thickening with aging, and polylaminate structure gradually appeared. While the agglutinated nucleus, transfer vesicles, plasma membrane and plasmodesmata still presented.

研究发现，次生壁形成早期，细胞核具有双层核膜，染色质凝聚，可见大量的线粒体、粗面内质网和高尔基体等细胞器存在于纤维细胞中；随后，双层核膜消失，细胞器将逐渐解体，多泡体开始出现在纤维细胞的细胞质；随着年龄的增加，纤维细胞壁逐渐增厚，并出现多层结构现象，而运输小泡、细胞膜、胞间连丝和凝聚的染色质将持续存在。

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。