无细胞的

The active form of NGF is a dimer in which two monomer is linked by 3 disulphide bonds. This form of dimer makes the purification of NGF difficulty because the protein expressed in E.

在蛋白纯化过程中这种由二硫键形成的空间结构往往是蛋白纯化过程中复性的难点，尤其是在大肠杆菌表达生物蛋白时，所表达的蛋白往往以无活性的单体形式存在于细胞内。

Histologically , the hydatidiform mole has large avascular villi and areas of trophoblastic proliferation.

组织学上，葡萄胎是由大量的无血管的绒毛和滋养层细胞的增生构成的。

In pure cultured neuron, the inhibitory effect of 0.5mmol/L L-NNA on theincrease of LDH leaking after exposure of H/R and SIN-1 had also no statistical significance, but it could inhibit significantly the above index in mixedly cultured cerebral cortex neuron and glia.

在单纯培养神经细胞中0.5mmol／LL－NNA对H／R＋SIN－1导致的LDH漏出率增加仍无显著抑制作用，但可显著抑制H／R引起的混合培养的神经细胞和神经胶质细胞的LDH漏出率。

Then they artificially supplied the cultured cells with one of two genes-either a functional copy of the WRN gene, which is mutant or nonfunctional in Werner Syndrome, or a gene encoding the protein telomerase, which elongates short or missing telomeres.

然后他们人为地在培养细胞中供给下述两种基因的其中之一，一种是WRN基因的功能性拷贝，它在Werner综合症患者中是突变的或无功能的。

Transfer factor is a dialysable extract of sensitised leukocytes.

转移因子是致敏白细胞中的可透析物质，能将一个有免疫能力的人的某些细胞免疫力转移给无免疫力的人。

The effect of AA on BEL-7402 was not significant; However, AA could effectively enhance AT-induced hepatocarcinoma cell apoptosis and lesion severity through activation of caspase-3 but not ERKs.

AA对BEL-7402无明显的作用，但能有效的通过caspase-3而不是ERKs的激活促进AT对肝癌细胞的凋亡效应。

Here we demonstrate that low levels of mischarged transfer RNAs can lead to an intracellular accumulation of misfolded proteins in neurons.

我们发现低水平的无功能的转录RNA可以导致神经元中错误折叠的蛋白质在细胞内的累积。

No obvious changes in cell growth were observed in vitro, compared with the cell line NuTu-19. Tumor growth rate and tumor size were lower in the syngeneic rats Fischer 344, who were injected by IL-12, B7-1 or IL-12/B7-1 gene modified tumor cells, compared with those in the control group.

在体外培养条件下，与野生型NuTu-19相比，各种基因修饰的肿瘤细胞的形态和生长速度无明显改变，在动物体内的致瘤性有不同程度的下降，生长速度有所减慢。

The illumination used, so called soft x rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten billionth of a meter), is also sufficiently penetrating to image intact biological cells in ma ny cases.

其使用的照明度，即所谓的软性 X射线，其波长在 20到 40埃之间(1米的 100亿分之一为 1埃)。在许多情况下也能够穿透完整无缺的生物细胞并成像。

The illumination used, so called soft x rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten billionth of a meter), is also sufficiently penetrating to image intact biological cells in ma ny cases.

在许多情况下也能够穿透完整无缺的生物细胞并成像。由于使用的 X 射线的波长使软性 X 射线显微镜永远比不上电子显微镜可能具有的最高分辨力。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。