细胞发生

BACKGROUND: Lipopexia induced by glucocorticoid is fat precipitation in marrow due to abnormal lipometabolism, or differentiation of cells resulting from hormone-affected bone marrow mesenchymal cells. The precise generating procedure remains unclear. OBJECTIVE: To investigate effects of various concentrations of dexamethasone on adipogenic differentiation of bone marrow mesenchymal cells.

背景：糖皮质激素引起的髓内脂肪蓄积是由机体脂肪代谢异常在髓内形成的脂肪沉淀，还是由于激素直接作用于骨髓间充质细胞使细胞发生了分化，以及具体生成的过程目前还没有定论。

The hair colour cosmetics of 50％ and 100％ density can induce irreversible patho-damage in skin Malpighian cell and dermis fibroblast and inhibit the growth of guinea pig and so on.

50％、100％浓度的染发剂可导致豚鼠皮肤角质形成细胞和成纤维细胞发生不可逆病理改变，以及豚鼠的生长抑制等全身性影响。

Imaging research in nude mice bearing human breast cancer exhibited that radioactivity has been accumulated in tumor site, While only slightly visualized or nonvisualized in the control group of mice.(4) Compared with the negative control group, the 〓I-EGF trial groups remarkably suppressed the growth of tumor.

〓I-EGF静脉和瘤内注射对荷瘤裸鼠有较强的肿瘤抑制作用，病理组织检查及透射电镜细胞超微结构观察发现肿瘤细胞发生一系列不可逆损害变化，而〓I或〓I-白蛋白无此作用； 6。

A development-course observation of the morphological changes in the nucellar cells undergoing PCD to form pollen chamber was performed.

在珠心细胞发生PCD的过程中，其形态变化显著，有序地降解细胞组分，其间液泡起着关键作用。

ResultsIFA showed the G1 and G2 genes were successfully expressed, and the fluorescent signal was robust and concentrated in the perinuclear region of the transfected cells.

结论成功构建了糖蛋白G1、G2的表达载体，并在Vero E6细胞中呈有效表达，二者的共表达可在偏酸性条件下引起Vero E6细胞发生融合。

Results:According to their size, 68 cases of intramural and subserous hysteromyomas were exposed to HIFU, which had focusing property.After treatment, the total efficacy was 100%(68 cases), while cure rate and significant efficacy were 34%(23 cases) and 53%(36 cases) respectively.

利用 HIFU在人体内部的可聚焦特性，用瞬间高温致肌瘤细胞发生不可逆的变性和凝固性坏死，坏死的肌瘤细胞逐渐被周围组织吞噬、吸收，达到其&纯无创&治疗子宫肌瘤的目的。

In conclusion, the mechanism of differentiation and apoptosis in NB4, K562 cells induced by tributyrin may associate with its up-regulation of acetylated histone and p21(superscript WAF1) mRNA level.

TB诱导NB4、K562细胞发生分化和凋亡的机制与TB引起细胞组蛋白高乙酰化和继而上调p21(上标 WAF1)表达有关。

Methods:U 2-os cells were treated by bFGF, and their survival and proliferation were determined with trypan blue exclusion method and MTT method.

本文通过观察bFGF对骨肉瘤细胞系U 2-os细胞增殖及生存的影响，探讨bFGF在肿瘤细胞发生发展中的作用。

Embryo cells display a synchron cleavage rhythm during the cleavage stage, there is almost no gene transactivation, which is regulate and operated by the mRNAs and protein of oocyte.

卵裂阶段的胚胎细胞呈现同步化的分裂节律，鲜有基因转录活动，其发育由源自卵母细胞发生期间合成的蛋白质和mRNAs调控。

Histological observation showed that degeneration,necrosis of liver cells,edema,extravasated blood,erosion and degranulation of the mast cells in intestine mucosa.

肠谷氨酰胺酶活性降低，肠粘膜对谷氨酰胺利用减少，肠粘膜通透性增加。组织细胞学显示，TAA组动物肝细胞发生严重变性坏死；肠粘膜淤血、水肿、糜烂，肠肥大细胞脱颗粒。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。