细胞结构

The results showed:(1) the cellule morphous and the disposition in chick embryo of PGCs were coincident no matter stained by PAS or HE staining, and HE staining could disclose the morphologic characteristics more clearly, exactly and completely;(2) genesis of blood island could be observed at the boundary of light and dark region of the extraembryonic blastoderm at about 26 hours;(3) both the blood vessel endothelium cells and free cells of the blood island were differentiated from PGCs. The generating of genuine yolk sac was at about 44-48 hours.

结果表明：①用经典的识别原生殖细胞的PAS染色方法与HE染色所观察到的PGC在鸡胚的分布及细胞形态基本一致，而HE染色较PAS法能更有助于清晰、完整、准确地识别PGC的细胞内部结构特征；②在孵化26小时的鸡胚胚外胚盘的明暗交界处可见血岛的发生，血岛发生的时间比真正的卵黄囊产生时间（大约44-48小时）要早很多；③血岛周围的血管内皮细胞与管腔中游离细胞都来自PGC。

And the decreasing of renal function was consistented with renal pathological changes.

蛋白的表达及细胞内钙含量随时间延长进行性增加，通过激活促细胞凋亡的程序而诱导肾脏细胞凋亡，与肾脏结构受损、功能下降是一致的。关键词：脑缺血；'肾脏；细胞凋亡；TNF一a；MDA；CaZ

On the membrane of liver parenchymal cell and endothelial cell ×12 000;Fig 4 3 h after Cd-injection:ER extremely dilatant,mitochondria swollen,a lot of Ce-H2O2 precipitation on the membrane of PC,EC and Kupffer＇scell ×15 000;Fig 5 6 h after Cd-injection:in irreversible state,hepato-cytoplasm clear,few organelle,a few Ce-H2O2 precipitation on the membrane of PC and eC ×5 500;Fig 6 24 h after Cd-injection:hepatocyte plasmotorrhexis,membrane of

ce呈点状沉积在肝实质细胞、内皮细胞膜上×12 000；图4 染镉后3小时：ER极度扩张，线粒体膨胀，内外膜模糊不清；见大量Ce沉积在PC、EC和Kupffer＇s细胞膜上×15 000；图5 染镉后6小时：处于不可逆改变状态的肝细胞胞浆清亮，少有细胞器；仍可见少量Ce沉积在PC和EC膜上×5 500；图6 染镉后24小时：可见破碎的肝细胞，胞内膜结构大多已不清晰；未见Ce的沉积×7 000

After disposal,schwann cells, myelin sheath and axon of nerve fibers were eliminated,but the basement membrane tube of schwann cells and three-dimensionalsupports of extracellular matrix of epineurium and perineurium werereserved.

经脱细胞处理后，去除了Schwann细胞、神经纤维的髓鞘和轴突，保存了由Schwann细胞基底膜管以及神经外膜和束膜的细胞外基质构成的三维支架结构。

Strain AR-15 penetrated the exodermal passage cells through the velamen cells or root hairs and further infected the cortical cells. There were a number of spores and hyphae in plant roots that was damaged by strain AR-15. Study on the ultrastructure of D. nobile root and its endomycorrhizal formationshowed that the wall of velamen cells of D. nobile root was thin, and there were waxylayers outside of velamen. Cells of exodermis were arranged tidily, having thick wallsand chloroplast.

金钗石斛根及其菌根的超微结构研究表明，金钗石斛根的根被细胞薄壁，在最外层根被细胞之外覆盖着蜡质层，外皮层细胞排列整齐，细胞壁厚，内含叶绿体，靠近外皮层的皮层细胞含叶绿体、线粒体，皮层细胞壁薄，细胞核明显，周围有叶绿体围绕，细胞膜附近有小泡结构。

Many dendritic projections appeared at the adherent cells gradually observed by light microscope; By scaning electron microscope, typical"veiled"DC appeared with abundance of gauffer and the edge of the veil made of graded dendritic projections; all kinds of DC conjected and composed of cluster by the projections. 2. The percentages of CD markers were CD123/54. 5, CD11c/88. 99, CD40/56. 65, CD1a/69. 36, CD86/92. 57, CD80/70.79, CD83/85. 91. 3. The numbers of T cells expressing CD69 has been increased strikly (CD4+CD69+/19. 05%; CD8+CD69+/21. 93%). 4. The augment of percentages of CD3+, CD25+, CD45RO+/CD45RA+, CD4+/CD28and CD8+/CD28- and the decrease of CD28+ and CD45RO-/CD45RA+ in both the CD4+ and the CD8+ T cells could be exemed.

光镜下见贴壁细胞在培养过程中（7天）逐渐长出长短不一树突状突起，细胞形态不一；电镜观察到DC表面呈多层"面纱"覆盖，有大量皱褶，"面纱"边缘有长短不一的不规则的树突状突起，每个突起有多级分枝；AFM见DC细胞的"面纱"状结构是由多级树突状突起相互缠绕形成的，各个DC细胞之间的突起相互连接，构成集落； 2。

Results: The main ultrastructural changes after Cd treatment included swelling or vacuolation of mitochondria, increase of myelin figures in GCT cells, and swelling of mitochondria in the endothelial cells of peritubular capillaries. The changes above were most prominent at 7~15d, and swelling of the cytoplasm and slight karyolysis were also found. The morphology of GCT cells didn't recovery to normal yet after 30d.

结果：镉注射后24h，GCT细胞内出现不同程度的线粒体肿胀和空泡化，胞质和线粒体内可见髓样结构，GCT周围毛细血管内皮细胞线粒体肿胀。7~15天后上述改变明显加重，部分GCT细胞见胞质广泛肿胀和轻度核溶解，30天后细胞形态仍未恢复正常。

Methods: Separate and abstract the effective components of Huangqi (Omni-Saponin、total-flavone) and Danshen (Danshen-ketone、 Danshen-Quinone). Applying L-Arginine methyl ester to pregnant rats by I. P to make Nitrogen Oxide Synthesis blocking models (uterus-placenta-fetus lacking blood and oxygen model or pregnant hypertension syndrome model). On day 12, 18 of pregnancy paunched the rats and took out the fetus and placenta/uterus. Measured the basal BP during pregnant period and BP、protein、basal activity each day. Observed placenta/deciduas ultramicroscopic structure by electron microscope and took count of languishment cells. Measured the expressive intensity of bcl-2、Bax of placental nutrient cells by SABC method.

一氧化氮合成酶阻滞剂L-精氨酸甲酯妊娠大鼠腹腔给药，制作一氧化氮合成阻滞模型（子宫-胎盘-胎儿缺血缺氧或妊娠高血压模型），妊娠第12、18天剖腹取胎、胎盘／子宫，妊娠期测基础血压，每日测血压、蛋白质量、基本生理活动；电镜观察胎盘／蜕膜超微形态结构，并进行细胞凋亡计数；免疫组化检测胎盘滋养细胞bcl-2、Bax表达强度；原位杂交法检测胎盘滋养细胞、血管内皮细胞VEGF、eNOS、iNOS、MCP-1、MMP9（基质金属蛋白酶9）mRNA表达。

Protein phosphatases are crucial for cell living. Protein phosphatase 2A (PP2A) is an important member of serine/theronine protein phosphatase family, which is involved in almost all biological processes in eukaryotic cell. The 3D structure of PP2A core enzyme and holoenzyme was solved in 2006. These results are significant instructions for us to further understand PP2A structure, interactions between PP2A subunits, and also interactions between PP2A and its binding proteins.

蛋白磷酸酶在细胞的生命活动中起着十分重要的作用，蛋白磷酸酶2A(protein phosphatase 2A， PP2A)作为蛋白磷酸酶家族中十分重要的一员，它几乎与所有真核细胞的生命活动都有密不可分的关系。2006年，PP2A核心酶和全酶晶体结构的陆续破解对于深入了解PP2A自身的结构和亚基之间的相互作用，以及其与结合蛋白作用的机制都有重大的影响。

When magnified 50,000 times through electron micrographs, we see that a cell is made up of multiple complex structures, each with a different role in the cell's operation.

通过电子显微镜将它放大50000倍，我们看到，细胞是由多种复杂的结构组成，每一结构在细胞的运作中发挥不同的功能。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新