- 更多网络例句与核仁内小体相关的网络例句 [注:此内容来源于网络,仅供参考]
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Small cell carcinomas usually do not show large prominent nucleoli, whereas melanomas often do, accompanied by occasional intranuclear pseudoinclusions.
小细胞癌常无明显的大核仁,偶尔伴有核内假包涵体。
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Light microscope and transmission electron microscopy showed that SMMC-7721 cells induced by SAHA had undergone the restorational alteration in morphology and ultrastructure, which were different from those of nontreated cells but were similar to those of normal cells, and the changes were as follows: the cells turned to be flat and spread; the nucleo-cytoplasmic ratio lessened and nuclear shape became rather regular; the number of nucleolus reduced and its volume lessened; euchromatin increased while heterochromatin decreased in nucleus; in the cytoplasm, mitochondria grew in number with relatively consistent structure and well-developed mitochondria cristae; Golgi complex turned to be well-developed and typical; rough endoplasmic reticulum increased. Immunocytochemistry assay showed that the expression of AFP and PCNA were declined significantly. FCM analysis showed SAHA could arrest SMMC-7721 cells in G0/G1 phase, with an accumulation of the cells in G0/G1 phase while a decrease of cells in S phase. Semi-quantitative RT-PCR detection revealed that the expression of p21WAFl mRNA was upregulated remarkably in the cells treated with SAHA.
结果:倒置显微镜和透射电镜观察显示,经SAHA处理的细胞增殖速度显著减慢,细胞体积增大,细胞核较小,形状较为规则,核仁数量减少、体积变小,核内常染色质增多而异染色质减少,核质比例减小,细胞质内线粒体数量增多、线粒体嵴发达,高尔基体较为典型,粗糙型内质网增多,呈现出与正常上皮细胞相似的形态变化;MTT比色法测定结果显示不同浓度(2.5、5.0、7.5、10.0uM)SAHA对SMMC-7721细胞的增殖均有抑制作用,并有明显的剂量依赖和时间依赖关系;免疫细胞化学检测显示SAHA能显著降低PCNA和AFP在SMMC-7721细胞中的表达;流式细胞仪检测结果显示,SMMC-7721细胞经SAHA处理后,G0/G1期细胞明显增加,S期细胞则明显减少,细胞被阻滞于G0/G1期;RT-PCR检测结果表明,SAHA作用12h后SMMC-7721细胞中p21WAF1 mRNA的表达即有增加,24h后更为明显。
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The results indicated that the typical apoptosis was induced by PRRSV in lungs and uteri. The ultrastructural changes showed different characterizations at different stages of the infection. During the early stage from 8th h to day 3 postinfection,the apoptosis cells shrank,the cytoplasm concentrated,the chromatin condensed,the kernel disaggregated and the endoplasmic reticulum dilated. During the middle stage from day 5 to day 9 postinfection,the apoptosis cells evidently shrank,the cell membranes protu berated,the plastosome manifolded,and apoptosis bodies were found. During the last stage from day 10 upwards postinfection,the apoptosis bodies degenerated and disappeared,and no inflammation occurred. Few apoptosis cells were necrotic.
结果表明,PRRSV可诱导宿主肺和子宫发生典型的细胞凋亡,表现为细胞的超微形态结构随着病毒感染进程出现不同的特征性变化,早期(感染后第8 h至第3 d)凋亡细胞多表现为细胞体积缩小,细胞质密度增强,染色质浓缩,核仁解体,内质网扩张;中期(感染后第5 d至第9 d)凋亡细胞体积显著缩小,细胞膜突起,线粒体增多,有凋亡小体形成;晚期(感染后第10 d以后)凋亡细胞形态多表现为凋亡小体降解和消失,少数凋亡细胞在凋亡晚期表现为坏死细胞。
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The mature egg cell was an inactive cell with only a few polysomes. At the early zygote stage, a large number of ribosomal precursors were produced by the nucleolus, and many polysomes appeared in the cytoplasm, which suggests a high level of metabolism. Zygote at the dormancy stage had a small nucleolus and marked decrease in ribosomes, as shown by a few polysomes, which suggests decreased metabolism. Zygotes in the prophase of mitosis and two-celled proembryo became active again in metabolism, for a prominent nucleolus, high density of ribosomes and increased number of polysomes in the cytoplasm.
结果如下:在成熟卵细胞中多聚核糖体数量不多,且细胞代谢活性较弱;初期合子内,核仁大量合成核糖体前体物质,胞质中多聚核糖体数目众多,细胞代谢活性较强;休眠期合子的核仁变小,胞质中核糖体数量急剧减少,仅有少量多聚核糖体,细胞代谢活性较弱;合子分裂前期和二细胞原胚期,核仁显著,胞质中核糖体的密度增加,出现大量多聚核糖体,细胞代谢活性较强。
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Transmission electron microscope results revealed vascular endothelial cells with normal morphology in the control group and tumor cells with apparent nucleoli in the Ad-GFP group, while in the Ad-aMMP-2 group, some vascular endothelial cells exhibited chromatin pycnosis in the nucleus, forming apoptotic bodies.
透射电镜观察对组血管内皮细胞形态正常;Ad-GFP组瘤细胞大,核仁明显;Ad-aMMP-2组部分血管内皮细胞核内染色质固缩,聚积成团块状形成凋亡小体。
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Observed with transmission electronic microscope,ES-like cell have obvious nucleolus and a little heterochromatin,and many ribosomes in the cytoplasm with much endoplasmic reticulum and mitochondria. A part of cells appeared alveoli on the nuclear envelope,and chromatin was pycnosis and the .
在透射电镜下细胞核仁明显、核异染色质少;细胞质中核糖体较多,内质网、线粒体发达,部分细胞的细胞核膜上出现小泡,染色质边集,染色质形成凋亡小体。
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The cell in acidic situation presented a degenerative chang-ment,such as an increased lipid drop and empty cavity in the cell plasma,a py-knotic nuclei,the dilatation of the endoplasmic reticulum and Golgi saccules,mi-tochondrial swelling the number of ribose decrease,and the ribose dissociated inthe plasma,a lot of swallowing cavity,the fibric material decreased accompany-ing with the acid being stronger.
随培养基pH逐渐下降,上述过程因受酸性阻抑而延缓,细胞增殖速度也受影响,处于酸性环境中的软骨细胞呈退行性变化,表现为细胞浆内脂质颗粒与小泡增多、细胞核皱缩、核仁浓染、内质网线粒体膨胀、核糖体数目减少,且与粗面内质网结合的少,游离在胞浆中的多。
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Before treatment,there are abundant microvtlli on the cell surface,many filoplodia on the cell rim,few of endoplasmic reticulums , Golgi complexes and mitochondrions with abnormal structure and lots of free ribosomes in the cytoplasm. The shape of nucleus is irregular with high nuclear-cytoplasmic ratio, many dark pellets of heteromatin and a few of nucleoluses in which there ar...
经1.5×10~2g/L地塞米松处理后,细胞表面微绒毛和丝状伪足显著减少或消失,出现皱褶状和小泡状结构;细胞核形规则,核质比值减小,异染色质团块减少,核仁数目减少、结构致密;细胞质中粗糙型内质网、高尔基体、线粒体数量增多,形态结构典型,游离核糖体减少,这些变化说明地塞米松改变了MGc80-3细胞的超微结构特征,具有明显的诱导分化作用。
- 更多网络解释与核仁内小体相关的网络解释 [注:此内容来源于网络,仅供参考]
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endoplast:细胞核,原虫核体
内质网 endoplasmie reticulum | 细胞核,原虫核体 endoplast | 核小体,核仁,原虫核小体 endoplastule
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endoplastule:核小体,核仁,原虫核小体
细胞核,原虫核体 endoplast | 核小体,核仁,原虫核小体 endoplastule | 内复制 endoreduplieation
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entothorax:胸内骨
entosthoblast 核仁小体 | entothorax 胸内骨 | entoturbinal 内鼻甲
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psammoma bodies:砂粒体
光镜下:乳头分枝多,乳头中心有纤维血管间质,间质内常见呈同心圆状的钙化小体,即砂粒体(psammoma bodies)(图14-18),有助于诊断. 乳头上皮可呈单层或多层,癌细胞可分化程度不一,核染色质少,常呈透明或毛玻璃状,无核仁.