形态学

Methods From March,1994 to April,1998,video colonoscopies were performed and retrospectively analyzed in 1810 patients in order to determine the risk factors for oncogenesis Results There were 120 patients with 144 colorectal adenomas,malignantly transformated adenomas exceeded 2.0cm in diameter showed mainly Yamada type Ⅱ; 16.67% colorectal adenomas with malignant change were found,of which the frequency of malignant villous and tubular adenomas were 29.63% and 9.20% respectively.

回顾性分析和研究1994年3月至1998年4月期间我院电子结肠镜检出的大肠腺瘤的形态学和恶变过程中的主要危险因素。

It well informs the research advances in all aspects of mammalogy,including anatomy, morphology, palaeontology, taxonomy, molecular biology, physiology, neurobiology, ethology, genetics, reproduction, development, evolutionary biology, domestication, ecology, wildlife biology and conservation biology etc.

该杂志全面提供了哺乳动物学各方面的研究进展，包括解剖学、形态学、古生物学、分类学、分子生物学、生理学、神经生物学、动物行为学、遗传学、繁殖、发育、进化生物学、驯养、生态学、野生动植物生物学以及保存生物学等等。

All patients and control group (group C,20 cases) were given esophageal manometry and 24 hour esophageal pH monitoring.

RE在内镜除食管黏膜的特征性表现外，贲门间隙增宽是一个重要的形态学特征。

By light and electron microscopy, there were many morphological characteristics of apoptosis including compaction and margination of nuclear chromatin, nuclear fragments, and apoptotic bodies.

光学显微镜和透射电子显微镜可观察到细胞凋亡的形态学改变。

RESULTS: There were many vacuoles and cracks in the cells, with heterochromatin margination, nuclear pycnosis and nuclear fragmentation. The high intensity pulsed electric fields caused damage in K562 cells, and the apoptotic percentage went up with the increase in frequency and intensity of PEF.

结果：经过高电压脉冲电场处理后的K562细胞，胞内出现大量空泡及裂隙，核内染色质向核周边聚集形成凋亡小体，呈典型细胞凋亡形态学改变；K562癌细胞的凋亡比例随着脉冲个数和电场强度的增加而增加。

The morphological changes in condensation and margination of nuclear chromatin, apoptotic bodies and cell necrosis significantly increased in gen group and gen plus ddp group.

形态学观察可见gen组和gen+ddp组细胞凋亡、凋亡小体及变性坏死增多，而对照组少见。

Observ ed with transmission electron microscope and scanning electron microscope, t he apoptotic nuclei showed the typical morphological feathers of apoptosis: cond ensation and margination of chromatin, bubbling of nuclear membrane and apoptoti c bodies.

在透射电子显微镜和扫描电子显微镜下都观察到凋亡的细胞核呈现典型的凋亡形态学特征，例如染色质的凝集及趋边化，细胞核表面形成空泡化结构并有大量的凋亡小体结构出现。

The apoptotic effects of LPS are detected by various skills such as fluorescence staining, TUNEL reaction, DNA agarose gel electrophoresis, electron microscopy and fluorescence activated cell sorting. Our results demonstrated that fish lymphocytes would be apoptotic under different LPS concentrations(above 10μg/ml) and different time(above 6h) inducing, which is characterized by condensation and margination of chromatin, the formation of apoptotic bodies.

结果显示，在10μg/ml以上浓度的内毒素作用18后或以100μg/ml浓度的LPS作用6h以上，淋巴细胞即可出现明显的凋亡形态学变化，表现为染色质凝集和周边化，核断裂，形成凋亡小体，DNA发生特异降解产生典型的"梯状"电泳图谱，呈现TUNEL阳性标记等，并通过流式细胞术证实这种凋亡具有时问和剂量的依赖性。

The bulk of cells in the positive control group were dead.2 Treated with different dosages of DMF for 24h, it can be observed that green,nuclear margination and chromatin condensation were distinct in cells exposed to DMF.

研究结果 1。二甲基甲酰胺致人肝细胞凋亡形态学观察： 1不同剂量DMF染毒12h后，AO／EB染色可见阴性对照组无明显凋亡细胞，50mmol／L剂量组开始出现细胞形态接近正常，胞质为亮绿色，核出现固缩呈圆珠状，与正常细胞比较核质比变大的细胞。

Mass morphological observation: Nasal and sinus cavity got clean within 1 to 2 weeks postoperatively. Operative cavity had the De-mucous reaction from 4 to 6 weeks, such as mucous edema, vesicles, granulation tissue, mini-polyps, fibrous hyperplasia, and adhesion or regenerated diseases may appear in this stage.

结果： (1)对鼻内窥镜术腔大体形态学观察：术后1—2周术腔分泌物较多，残余渗血形成干硬血痂，粘膜表面纤维素渗出物形成模样结构，组织粘膜充血水肿；术后4—6周术腔分泌物减少，术腔可见小囊泡、肉芽、纤维结缔组织增生等病变。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。