倍增时间

A组的肿瘤倍增时间较B组、C组长。

The volume doubling time of tumors in group A was longer than that of the tumors in Groups B and C.

B组无瘤灶消失，但肿瘤倍增时间较对照组明显延长（P<0.01）。

In group B , no tumor disappeared , but tumor doubling time was significantly prolonged compared with that of control group ( P < 0.01 ) .

分离物仅能利用H2/CO2为能源和碳源，在无机盐液体培养基中生长，细胞最小倍增时间为3.2小时。

The isolate uses only H_2 / CO_2 as carbon and energy source .

结论：0.1Gy以上剂量X射线使EL－4细胞倍增时间延长。

Conclusion : Doubling time of EL-4 cells was increased following X-irradiation with doses above 0 . 1 Gy .

其分子机制可能是通过调控增殖、分化相关基因表达，抑制DNA合成与转录，延长细胞倍增时间，从而抑制细胞生长，促进细胞分化。

The possible mechanism might relate to modulation of gene expressions associated with proliferation and differentiation , which lead to inhibition of DNA sythesis .

正常及缓慢生长突变集落倍增时间分别为（14.6±1.74）h及（35.8±3.78）h。

Doubling time of normally and slowly growing mutants was ( 14.6 ± 1.74 ) h and ( 35.8 ± 3.78 ) h respectively .

伏马菌素B1对人结肠腺癌细胞培养倍增时间的影响

Fumonisin B1 May Reduced the Doubling Time of Cultured Cells

结果表明，该细胞系的群体倍增时间（PDT）为24h；

The results showed that p o p ulation doubling time of cells was 24 h ;

倍增时间为24～48h；

The doubling time was 24-48 hours .

结果：0.1～4.0GyX射线单次照射使EL－4细胞倍增时间明显延长。

Results : It was demonstrated that 0 . 1 ~ 4.0 Gy X-irradiation caused significant increase of doubling time of EL-4 cells .

在静态培养条件下，脐血造血细胞群体的比生长速率为034d-1，倍增时间为2d。

In static cultivation of hematopoietic cells , the population specific growth rate was 0 34 d - 1 , and the average double time 2 days .

生物学分析结果表明：细胞群体倍增时间（PDT）约为24小时；

The biological analysis results showed : Population Doubling Time ( PDT ) of cells was approximately 24h ;

电离辐射对EL-4细胞倍增时间的影响

Effect of X-rays on EL-4 cell doubling time

该细胞集落形成率为37%，倍增时间为22～24h，且EB病毒检测为阳性。

Colony formation of the cells was 37 % , the cell doubling time was 22 ~ 24 hrs , and EB virus detection was positive .

贴壁培养的神经前体细胞，群体倍增时间为（22.9±2.7）h，传代、冻存和复苏对细胞形态及生长无明显影响。

The population doubling time of INPC was ( 22.9 ± 2.7 ) h , subculture , freezing and recovering had no effect on cellular shape and proliferation of INPC . Conclusion Immortalized neural progenitor cell strain was established successfully .

细胞倍增时间为33h。

The doubling time of cells was about 33 hours .

结果HSC-T6细胞成活率较高，细胞在指数增殖期的细胞群体倍增时间为10.57h，克隆形成率为82.4%。

Results The population doubling time of HSC T6 was 10.57 hours and its cloning efficiency was 82.4 % .

hMSCs经成骨诱导后，增殖速度减慢，细胞倍增时间由36h变为41h；

Induced hMSCs show relatively slow proliferation , doubling time changes from 36 hours to 41 hours .

与原代NPC相比，INPC细胞增殖指数和增殖率升高，群体倍增时间缩短。

Compared with NPC , proliferation capability of INPC was stronger , its proliferation index and proliferation rate were increased , population doubling time was shortened .

用MTT法测定生长曲线，发现与不加药的对照组细胞相比，加药组细胞生长速率均明显降低，细胞倍增时间延长，增殖受到抑制。

We measured the cells growth curves by the MTT assay . Compared with the control cells , the treated cells showed the marked growth rate decrease and the delay in double time of proliferation .

结果脐血贴壁细胞呈长梭形、针形或三角形，增殖周期G0/G1为85.12%，倍增时间为48h。

Results Cord blood adherent cells display fibroblast-like or spindle shape , and their reproductive cycle : G_0 / G_1was 85.12 % , the doubling time was 48 hours .

经THP和温热处理后，MGC-803细胞生长速度减慢，细胞倍增时间延长（P<0.01）。

Slowed cell growth and delayed cell doubling time were evident after treated with THP in combination with hyperthermia ( P < 0.01 ) .

[结果]MTT法显示，不同浓度DADS作用HT鄄29细胞12、24、48h后，细胞生长抑制率及细胞群体倍增时间呈浓度、时间依赖性增加。

MTT assay showed that DADS significantly inhibited HT-29 cells and exhibited a time , dose-dependent model . after adding various concentration of DADS for 12 , 24 , 48h .

小细胞肺癌（SCLC）肿瘤细胞倍增时间短，进展快，常伴内分泌异常或类癌综合征；

Small cell lung cancer ( SCLC ) tumor cell doubling time is short , rapid development , often accompanied by endocrine abnormalities , or carcinoid syndrome ;

共记数8d，以培养时间为横轴，细胞数为纵轴，绘制生长曲线并计算细胞的群体倍增时间。

Taking the culture days as the abscissa axis and cell number as the ordinate axis , growth curve was drawn and population double time was calculated .

传代后可维持未分化状态并稳定增殖，细胞倍增时间为3d左右，体外增殖达20代以上；P3代以后，细胞形态较单一。

The cells can maintain undifferentiated state and stability of proliferation after passage , and can expand to at least 20 passages in vitro , with a cell doubling time of about 3d . After P3 generation , cells presented in uniform morphology .

细胞群体倍增时间为52h。

The mean cell p o p ulation doubling time was 52 hours .

A549肺腺癌细胞对数生长期群体倍增时间在蒿甲醚作用后（20.7±0.5）h，对照组为（32.2±0.3）h，两组比较有显著性差异（P<0.01）。

The population doubling time in logarithmic growth phase in the artemether treatment group was ( 20.7 ± 0.5 ) h compared to ( 32.2 ± 0.3 ) h in the control group . The difference between two groups was statistically significant ( P < 0.01 ) .

方法经传代培养，绘制肝星状细胞HSC-T6的细胞生长曲线，并计算其细胞群体倍增时间和克隆形成率等基本的细胞生物学参数；

Methods Growth curve of HSC T6 was drawn and some basic indicators of HSC T6 cell biology were calculated , such as population doubling time and cloning efficiency .

细胞在对数生长期的倍增时间为30h左右；约传10代后进入衰退期；

The doubling time of the cells in logarithmic growth period was around 30 hours , the cells entered decline period after expanding for 10 generations .