管细胞

Sometimes, a few of pollen tubles could enter into styles through stigmas, but abnormal callose could deposit in the tubes.

结果表明，诸葛菜花粉很难在3种类型油菜的柱头上黏附和萌发，同时在花粉黏附的部位及其附近柱头乳突细胞内产生大量胼胝质；萌发的少量花粉粒，其花粉管生长迟缓，且发生严重扭曲、肿胀等畸形现象，从而导致其进入柱头也比较困难；少数花粉管能穿过柱头进入花柱，但时常有异常胼胝质沉积在花粉管中。

But we could recognize the efferent ducts because the cilia of the ciliated cells became red using HE staining .The epithelial cell height became higher and higher with time passing by.

睾丸输出小管的扩张，上皮高度的下降变得扁平使它的管腔也变得圆滑，但是在HE染色下纤毛上皮细胞的长长的纤毛被染成红色倒成了辨别睾丸输出小管的标志。

Results Tag was found in all of 8 ependymomas, 2 choroid plexus papillomas, 2 human glioma cell lines, 90% of pituitary adenomas (9/10), 73% of astrocytomas (11/15), 70% of meningiomas (7/10), 50% of glioblastomas multiforme (4/8), and 33% of medulloblastomas (2/6). None of the 8 normal brain tissues were positive for Tag, nor were 5 oligodendrogliomas and 1 pineocytoma.

结果 Tag在8例室管膜瘤、2例脉络丛乳头状瘤及2株人脑胶质瘤细胞系中全部表达；垂体腺瘤Tag阳性率为90%(9/10)，星形胶质细胞瘤73%(11/15)，脑膜瘤70%(7/10)，多形性胶质母细胞瘤50%(4/8)，髓母细胞瘤33%(2/6)；5例少枝胶质细胞瘤、1例松果体瘤及8例正常人脑组织无Tag表达。

The injured gill cells had a different ultrastructure, with endoplasmic reticulum dilated and vesiculated, mitochondrial cristaes partially disintegrated, gill fibre cuticles denatured and dropped. The ultrastructural damages to hepatopancreatic cells were characterized by the decrease of microvilli, swelling and breaking up of mitochondria, expansion of endoplasmic reticulum, disruption and vacuolization of nucleus, tumefaction of nuclear membrane and increase of lipid droplets. As for the toxicological changes of myocardial cells, the mitochondria were swelling, having a lot of vacuolus and disintegrating, while the myofibrils were irregular with endoplasmic reticulum dissolved.

鳃细胞的损害表现为鳃丝水肿，细胞器溶解，角质层变薄，线粒体、内质网的肿胀、解体；肝胰脏细胞的主要损害特征为肝管微绒毛减少，线粒体水肿解体，内质网扩张，细胞核空泡化，核膜水肿和脂肪滴增加；心脏细胞的毒理变化为线粒体内嵴肿胀、瓦解，肌原纤维不规则，内质网溶解。

Results VEGF-C and VEGFR-3 are all expressed on both mesenchymal cells and vascular endothelium of the embryos during early period. In middle and latter period, VEGFR-3mRNA is mainly expressed on cell plasm of alimentary canal, but it has no expression on vascular and lymphatic endothelium; The expression of VEGFR-3 is extensive and positive expression is seen on the vascular and lymphatic endothelium.

在胚胎中、后期消化道组织中VEGF-C主要表达于消化管壁组织细胞以及肠系膜内，在血管和淋巴管内皮细胞则无表达；VEGFR-3亦表现为广泛的表达，于血管和淋巴管内皮细胞可见阳性表达，并随着胚胎的发育，其在淋巴管内皮细胞的阳性表达率明显增加。

Some exudation and bleedings happen in the pulmonary alveoli, some inflammatory cells infiltrate into lung tissues; in the serum AMY, ALP, TNF-α, IL-6 increases obviously high, COX-2 expression increase; The expression of NF-κB in big rat lung of SAP increase, and the nucleus is thick dyed, it explain that the NF-κ moved into the nucleus; Stimulate the inflamatory reaction.

我们的实验中见到SAP组的大鼠肺脏组织细胞腔扩大、肺泡壁断裂，有的出现肺大泡，肺泡内伴有渗出及少量非出血，肺组织可见咽细胞浸润；血清中AMY、ALP、TNF-α、IL-6明显增高；在SAP组大鼠肝细胞、肾小管上皮细胞、肺脏小气管及肺泡上皮上COX-2表达增加；NF-κB在SAP大鼠肺脏中表达增加，并且出现核浓染，说明NF-κB前移入核；启动炎症反应等一系列反应SAP大鼠受损伤的肺组织中AQP-1无论在mRNA水平上、蛋白水平上还是免疫组化染色病理学检测上都明显下降。

Results Basal cell adenocarcinoma of prostate was composed of poorly differentiated solid carcinoma nests with many cellular nuclear mitoses arranged like basal cell carcinoma. Necrosis was in the middle of the carcinoma nest. Local differentiation to squamous cell, transitional cell and gland and structure like adenoid cystic carcinoma were found.

结果：前列腺基底细胞腺癌为分化差的实体癌呈基底细胞癌样排列，核分裂象多，癌巢中央伴坏死，可见局灶性鳞状细胞、移行细胞或腺管分化，也可出现腺样囊性癌样结构。

This page provides some protocols about porcine brain tubulin, sea urchin sperm axonemes, rat liver cell cytosol and organelle fractions, organelle motility assay, tissue culture of PtK1 cells, basic protein chemistry and so on.

该网页提供了一些有关猪脑的微管蛋白、海胆的精子基因丝、大鼠肝脏细胞的细胞质和细胞器的级分、细胞器的运动性实验、PtK1细胞的组织培养、基本的蛋白化学等等方面的操作流程。

Electron microscopy revealed that large amount of elastic fibers were found under the inner wall of Schlemms canal and in JCT and trabecular meshwork.

电镜下可见Schlemm氏管内壁与其下的细胞外基质结构对合，JCT组织较紧密，无内壁与其下JCT的分离；细胞与细胞及细胞与基质间的连接保持完整。

The results showed that (1) COX-2 mRNA and protein existed in the mature male rat testis. COX-2 was localized in spermatocytes by immunohistochemistry.(2) COX-2 also existed in adult man testis. COX-2 protein was positively stained in spermatocytes and Leydig cells.(3) 2 weeks after administration of rofecoxib, the level of testosterone in the whole testis reached its lower values, being only 50% of control values. However, testosterone level recovered during 4 weeks. After such treatment, histologic examination of these testes showed atrophy of the seminiferous tubules and maturation arrest of spermatogenesis.(4) 2 weeks post-EDS, expression of COX-2 decreased significantly (P.005), in comparison with vehicle-treatment control. 4 weeks after treatment, a new generation of fetal like Leydig cells repopulated in the testicular interstitium resulting in COX-2 expression partially recovered. Although the expression of COX-2 mRNA and protein are enhanced at 8th week after using external testosterone, it wasn't significant higher than control group.

实验研究证明：(1)正常成年雄性大鼠睾丸组织中COX-2在mRNA和蛋白质水平均存在表达，免疫组织化学结果显示COX-2定位于曲细精管内的生精细胞；正常成年男性睾丸组织中同样存在COX-2表达，免疫组织化学结果显示COX-2定位于曲细精管内的生精细胞和Leydig细胞；(2)服用特异性COX-2酶抑制剂rofecoxib 2周后，实验组大鼠睾丸组织内睾酮的含量减少，为正常对照组的50％；持续用药4周后睾丸组织内睾酮浓度逐渐恢复至正常水平；COX-2酶活性降低后病理组织切片显示睾丸内曲细精管萎缩，生精紊乱，持续用药4周时影响最明显；(3)注射特异性Leydig细胞杀灭剂EDS 2周后，实验组大鼠睾丸组织内睾酮浓度降至极低水平时，COX-2的蛋白和基因表达水平也显著低于正常空白对照组（P.005）；使用EDS后第4周，睾丸组织中的睾酮浓度逐渐回升，同样组织中COX-2蛋白表达和mRNA表达水平也相应提高接近正常水平；使用EDS后4周开始给予外源性睾酮，6周和8周时COX-2表达水平的绝对值虽有提高，但与正常大鼠空白对照组比较并无显著性差异，说明外源性雄激素刺激睾丸合成COX-2的作用并不明显。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。