查询词典 chromatin

Ca2+-ATPase and acid phosphatase of fiber in Phyllostachys edulis culms during secondary wall formation were studied. Early, intact double karyotheca remained in fiber nucleus, while nuclear chromatin agglutinated.

利用显微和细胞化学方法，对毛竹茎秆纤维次生壁形成过程中超微结构变化以及ATP酶、Ca2+-ATPase和酸性磷酸酶的超微细胞化学定位进行了研究。

As exposed to optics microscope and inverted microscope,compared to control,SW480 cells with Giemsa staining that treated with the H2RA(cimetidine、nizatidine) took on malignance declining as crimpled firstly,cellular bulk and heteromorphism dimimished,the amount of rounded cell manifolded,nucleolus bulk lessened,dyeing thin,the amount of nucleolus decreased,partial cell organs manifest side-gathering phenomenon on chromatin,and the link between SW480 cell is loosened , subsequently partial rounded cell is floated.When the H2RA(cimetidine 40μM、nizatidine 20μM) against SW480 cells after 3 day,SW480 cells change roundly,nucleolus smashed,shrinking nucleolus came into being,and part of those not adhibited cell wall.

在光镜和倒置相差显微镜下，与对照组相比，经姬姆萨染色观察，西咪替丁、尼扎替丁处理的SW480细胞，先发生皱缩，体积变小，异形性减少，细胞变圆数目增多，细胞核变小，染色变淡，核仁数量减少，部分可见染色质边集现象；细胞间连接疏松，随后部分变圆细胞浮起。40μM西咪替丁及20μM尼扎替丁连续处理3天后，SW480细胞全部变圆，细胞核碎裂，固缩微核形成，部分不再贴壁。

To explain relationship between the effect of CLD on senile Demention and neuron in hippocampal area. The change of natural aging mice's neuron in hippocampal area were studied by applying microscope and transilluminating electric microscope. Results: Comparing with the young control, the old control mice's hippocampus had less small pyramid cells, the nerve cells denaturalizing and their branches reducing in the microscope. Hippocampal nerve cells were degenemiceing, with nucleus membrance crinkling like wave shape were not clear, and chromatin condensing with high electron density, heterochromatin accruing, part cell organs inclosing nucleus, nucleus condensing in the EM.

为了阐明菖龙丹抗老年性痴呆作用与海马区神经元结构的关系，运用光镜和透射电镜观察了菖龙丹对自然衰老小鼠海马区形态的影响，结果显示老年对照组小鼠光镜下海马锥体细胞较青年对照组数量减少，细胞体积变小，神经元变性，分枝减少；电镜下海马神经细胞发生退化改变，核膜皱缩，呈波浪状，膜结构不清晰，核染色质浓缩，电子密度高，异染色质较多，部分胞浆细胞器向细胞核聚集，有的可见细胞核固缩。

This probe hybridizes to a PstⅠ restriction fragment of 3. 2kb in intact chromatin.

其次用DNaseⅠ处理Jurkat细胞核后，纯化基因组DNA，经PstⅠ限制性内切酶酶解并作Sothern blot分析。

By electron microscope we can find the Shenqi group's cancer nuclear chromatin is partly condensing and a few with screen opening changing, the membrane is invaginating , the mitochondrias are mostly swelling and the number is decreased, with the cristae'number decreased or breakon even diminished and destructured in different degree, parts of the mitochondrias are bubbling changing.

细胞膜内陷，线粒体数量减少，多数肿胀，嵴减少或断裂，甚至消失，有不同程度的变性，部分线粒体呈空泡状。

In a-bout one third cells agglomerate chromatin localizes at the edge of nucleus, which shows apoptotic traits.

PCF处理的HaCaT细胞的超微结构损伤程度明显减轻，如胞浆内更少的空泡样结构和更多形态正常的细胞器，少见具有凋亡形态的细胞，未见凋亡小体等。

Apoptosis of myocytes was observed in the peripheral infarcted area, which appeared as shrinkage of cells and a condensation or marginating of chromatin. Large fragmentations and ladder bands were seen in DNA gel electrophoresis.

梗塞边缘区可见凋亡心肌细胞，其形态表现为细胞皱缩，细胞核染色质聚集成块或边集；DNA凝胶电泳可见大片段或梯形带。

Chemical modifications to DNA and histone proteins form a complex regulatory network that modulates chromatin structure and genome function.

DNA和组蛋白的化学修饰形成了一个调节染色质结构和基因组功能的复杂调控网络。

SATB1 folds and remodels the chromatin -- the intertwined DNA and proteins that form chromosomes -- into new shapes, bringing even distant parts of the genome together for coordinated control of gene expression_r and regulation.

SATB1打开并重新改型这些染色体——使DNA和蛋白质缠绕而形成同源染色体——变成新的形状，使位置较远的基因组结合从而协调基因的表达和调控。

"In the past there has been a lot of emphasis on chromatin modifications and physical access to genes, but Scp1 regulates the activity of the enzyme that transcribes genes directly," he adds.

在过去大家都强调染色体的修饰以及到达基因的物理途径，但Scp1却能直接调节转录基因酶活性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐