查询词典 nucleus

Pressor effects of central amygdaloid nucleus are mediated by IL-1β in hypothalamic paraventricular nucleus or arcurate nucleus.

下丘脑室旁核及弓状核内的IL-1β均介导兴奋中央杏仁核诱发的升压反应。

Tetraploid embryos could be produced by electrofusion at the stage of two-cell embryos, which could develop to blastocysts followed by fusion of cytoplasm and nucleus and cleavage in vitro. During the fusion of cytoplasm, the DNA methylation levels of the fused embryos are as high as these of two-cell diploid embryos in vivo Then the embryos are rapidly demethylated when the nucleus begin to fuse, resulting in the lowest DNA methylation levels when the nucleus are fused completely. After that, the DNA methylation levels of the fused embryos are gradually increased until the morula stage. However, whereas an asymmetric distribution of DNA methylation is established in vivo-derived blastocysts with a higher methylation level in the inner cell mass than that in the trophectoderm, we can not detect the asymmetric distribution in most in vitro-derived tetraploid blastocysts.

结果表明：利用电融合方法制备的小鼠四倍体胚胎在体外培养体系中经历细胞质融合、细胞核融合及细胞继续分裂发育直到囊胚期的过程，在细胞质融合的时候胚胎卵裂球同体内体外培养二倍体胚胎一样，呈现高度甲基化状态；在细胞核开始融合的时候，甲基化水平急速下降，在细胞核完全融合的时候甲基化水平达到最低点；随着胚胎继续分裂，胚胎甲基化水平逐渐增加，在桑葚胚期甲基化水平最高；但是囊胚期四倍体胚胎内细胞团同滋养层细胞甲基化荧光信号没有差别，这与体内体外培养二倍体囊胚内细胞团细胞甲基化荧光强度高于滋养层细胞甲基化荧光强度不同。

Tetraploid embryos could be produced by electrofusion at the stage of two-cell embryos, which could develop to blastocysts followed by fusion of cyto-plasm and nucleus and cleavage in vitro. During the fusion of cytoplasm, the DNA methylation levels of the fused embryos are as high as these of two-cell diploid embryos in vivo Then the embryos are rapidly demethylated when the nucleus begin to fuse, resulting in the lowest DNA methylation levels when the nucleus are fused completely. After that, the DNA methy-lation levels of the fused embryos are gradually increased until the morula stage. However, whereas an asymmetric distribu-tion of DNA methylation is established in vivo-derived blastocysts with a higher methylation level in the inner cell mass than that in the trophectoderm, we can not detect the asymmetric distribution in most in vitro-derived tetraploid blastocysts.

结果表明：利用电融合方法制备的小鼠四倍体胚胎在体外培养体系中经历细胞质融合、细胞核融合及细胞继续分裂发育直到囊胚期的过程，在细胞质融合的时候胚胎卵裂球同体内体外培养二倍体胚胎一样，呈现高度甲基化状态；在细胞核开始融合的时候，甲基化水平急速下降，在细胞核完全融合的时候甲基化水平达到最低点；随着胚胎继续分裂，胚胎甲基化水平逐渐增加，在桑葚胚期甲基化水平最高；但是囊胚期四倍体胚胎内细胞团同滋养层细胞甲基化荧光信号没有差别，这与体内体外培养二倍体囊胚内细胞团细胞甲基化荧光强度高于滋养层细胞甲基化荧光强度不同。

The cancer cells are in different differentiation periods: the chromatin of the young cancer cell's nucleus is rich in color and its cytoplasm is basophilous. The young cancer cells don't form into typical glandular cavity; The mature cancer cell is columnar or cubical and its nucleus is located at the base of the cell in gland tube-like arrangement; The decrepit cancer cell stain thin while its nucleus stain dense. The severer's nucleus disintegrate into small fragments. The decrepit cancer cell's arrangement is disorganized, only keeping its glandular shape.

显微镜下癌细胞呈现不同的分化程度：幼稚型癌细胞胞核染色质丰富，胞质嗜碱性，不形成典型腺腔；成熟型癌细胞呈柱状或立方状，细胞核位于细胞基部，呈腺管样排列；衰老型癌细胞胞桨染色变淡，胞核浓染，严重者胞核碎裂成细小碎片，衰老型癌细胞排列紊乱，仅保留腺体样结构轮廓。

In summary, the present study revealed that Barrington's nucleus and D-region received direct projection fibers from the sacral spinal neurons in lamina I, parasympathetic nucleus and dorsal commissural nucleus; periaqueductal gray also received afferent projections from the lumbosacral spinal cord and sent projection fibers to the Barrington's nucleus and D-region.

上述结果说明：大鼠腰骶髓 I 层、骶髓副交感核和后连合核神经元发出的投射纤维直接终止于 Barrington's 核和 D 区内；导水管周围灰质也接受来自腰骶髓的投射纤维，同时发出纤维终止于 Barrington's 核和 D 区内。

In the 1 h stress group,more FLI neurons were found in the lateral habenular nucleus,the medial habenular nucleus, the paraventricular nucleus, the central nucleus of amgydaloid and the lateral hypothalamus compared with the control group.

与对照组相比，应激1h组大鼠脑内外侧缰核、内侧缰核、室旁核、杏仁中央核和下丘脑外侧区等部位可见FLI神经元显著增加，而腹腔注射PGN后再应激1h，可抑制上述效应。

HVc received projections from medial nucleus magnocellularis of the anterior neostriatum,nucleus interfacialis of midneostriatum,telencephalie auditory nucleus-field L,nucleus uvaeformis of the thalamus,and locus ceruleus of the pons.

投射到古纹状体粗核和嗅叶X区，HVc接受新纹状体前部大细胞核内侧部、新纹状体中部界面核、端脑听核一L区、丘脑葡萄形核及脑桥蓝斑核的传入投射。

The positive production of ER, NGF and ChAT were detected in cirguli cortex, parieta lobe, frontal lobe, piriformis cortex and nucleus amydgaloideus corticalis, hippocampus gyrus fasciolaris, subiculum, CA2 and CA3, and mainly presented in nucleus medial septal, nucleus lateral septal and nucleus of diagonal band vertical division in septal-diagonal band area.

老年大鼠和去卵巢大鼠间脑内ER、NGF和ChAT的表达强度和阳性细胞数目总趋势是显著降低，而补充外源性雌激素可以阻止其下降，表明雌激素可通过ER促进间脑中NGF和ChAT的表达，雌激素对间脑中神经元结构和功能维持是必须的，而且雌激素对间脑神经元的作用与NGF和ChAT的表达是协同和一致的。

Results IL-6R immunoreactive cells were observed in the anterior of optical area,the ventromedial nucleus,the periventricular nucleus and arcurate nucleus of the hypothalamus.The strongly stained cells are concentrated in the granule cell layer of the dentdate gyrus and the pyramidal cells of the CA1-CA2 fields of the hippocampus.IL-6R positive cells are also detected in the cortex, the ventromedial nucleus of the thalamus,bed nu stria,olfaltory tubercle.

结果 IL-6R 免疫反应性细胞主要分布在下丘脑的视前区、腹内侧核、室旁核和弓状核；在海马， IL-6R 阳性细胞呈强阳性，密集分布于齿状回颗粒细胞层和 CA1～ CA2锥体细胞层；在大脑皮层、嗅结节、丘脑腹内侧核、终纹床核等处也有 IL-6R 阳性细胞。

A novel method used for segmentation of nucleus is proposed: filter the origin image with the median filter in both horizontal and vertical direction, which has a fairly wide window size, in order to reduce the infection of the noise and impurity; in both direction, use the threshold combined with the technology of finding the peak in local area to detect the real nucleus edge, and thus minimize the non-nucleus edge; also in both direction, let the border growing respectively using the type information; thereafter, weed the short border and link the border together to segment the nucleus, exploiting the convex character and border type.

提出一种新的细胞核分割方法：对图像使用水平和竖直方向的中值滤波，使用较大的尺度，尽量的消除杂质、噪声影响；在两个方向分别使用采用阈值限制以及局部最大值的方法检验边界，使非细胞核边界被剔除；在两个方向分别利用边界点的类型进行边界生长；边界生长完毕以后，剔除短边界，用两个方向获得的边界进行连接，充分利用其凸凹性和边界类型，完成分割。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。