查询词典 differentiation

The results showed that there was a negative relationship between H2O2 content and CAT activity, thus H2O2 content was low when CAT activity was high. There was a close relationship between H2O2 content and differentiation process. H2O2 could be an important signal transduction factor during bud differentiation. IAA oxidase activity was decreased firstly, and then increased, which affected IAA oxidase and degradation pathway and regulate ratio of cytokinin and auxin. With differentiation process continuing, PPO activity was increased, which could cause browning or vitrifaction of seedling, or even malformation.

研究结果表明，鹅掌楸组培再生过程中，过氧化氢酶活性与H2O2含量变化呈负相关，CAT活性较高时，H2O2含量则较低。H2O2含量与鹅掌楸组培苗分化进程密切相关，H2O2可能作为信号因子在芽分化过程中发挥重要作用；IAA氧化酶活性呈现先下降后增加的变化规律，从而影响IAA氧化降解途径，调控细胞分裂素与生长素含量的比值，影响鹅掌楸芽的再生；PPO活性随培养时间的增加而升高，引起组培苗的褐变或玻璃化，甚至生长畸形。

BACKGROUND: The study on regulation adipogenic differentiation of adipose tissue-derived stromal cells is benefit for artificial control differentiation direction of adipose stromal cells, and promote further understanding of cell differentiation.

背景：触发和控制脂肪基质细胞脂向分化的调控研究将有助于人为控制脂肪基质细胞的分化方向，促进对细胞分化的深入了解。

The study showed the recombinant wt/mCREG protein depressed the VSMC proliferation depending on dose and the optimal concentration was 400nM;2biologic function of CREG protein and the membrance receptor mechanism:①effect on VSMC migration: the wound healing experiment showed the OB2 cells migration was slower significantly after added wt/mCREG(400Nm) in supernatant. The HITASY cells migration were very slowly and no remarkable change. The gelatinase digestion and Western blot analysis showed the matrix metalloproteinase was decreased and TIMPs was increased;②effect on differentiation: after added wt/mCREG(400nM), the expression of myocardin, SMα-actin, MHC and caldesmin were increased and that of LM-1 and FN were decreased in OB2 cells. These effects were more significant when adding wtCREG.;③effect on VSMC proliferation: Cell cycle assay and BrDU stain showed: after added the wtCREG and mCREG protein, the ratio of cell in G0/G1 phase increased to 0.5773 and 0.5572 from 0.5308 respectively in OB2 group, which increased to 0.7369 and 0.7034 respectively from 0.6297 in HITASY group;3Role of M6P/IGF2R in CREG biologic function:①ELISA and co-immunoprecipitation showed the wt/mCREG binding to M6P/IGF2R directly.②antibody blocking test: when the anti-IGF2R was added to medium at the same time with wt/mCREG at different concentration(2μg/mL、4μg/mL、8μg/mL),the effects of CREG protein which depressing proliferation, migration, secretion and promoting differentiation were blocked, which had the positive correlation to the concentration of added anti body. The studies showed two combinant CREG promoted VSMC switch to differentiation phaenotype, at the same time, depress VSMC proliferation, migration and secreting extracellular matrix.

上述实验结果证实：两种重组CREG蛋白对VSMC增殖均有剂量依赖性的抑制作用，并且相同浓度的糖基化的CREG蛋白对细胞增殖的抑制效应更为显著，最佳效应浓度为400nM；2两种重组CREG蛋白添加后对HITASY和OB2细胞生物学行为的影响：①CREG蛋白对VSMC迁移的影响：刮伤实验发现，加入最佳效应浓度的wtCREG和mCREG蛋白24h后，OB2组迁移能力下降，HITASY组无明显变化；细胞外基质金属蛋白酶-2，9(Matrix metallo-proteinase 2，9，MMP2 ，9)明胶酶电泳检测和Western blot检测结果证实，两种CREG蛋白均可以使OB2细胞合成细胞外基质MMP2，9减少，而组织金属蛋白酶抑制物(Tissue Inhibitors of Metalloproteinases，TIMPs)增加；②CREG蛋白对VSMC分化的影响：加入400nM的wtCREG和mCREG蛋白12h后，OB2细胞myocardin、SMα-actin、MHC、caldesmin表达增加，LM-1、FN表达减少；③流式细胞仪分析细胞周期和BrDU染色分析证实，加入400nM的wtCREG和mCREG蛋白后，OB2组G0/G1期细胞由0.5308分别增加至0.5773和0.5572，HITASY组G0/G1期细胞由0.6297分别增加至0.7369和0.7034；3M6P/IGF2R在重组CREG蛋白的生物学功能中的调控作用：①免疫共沉淀和免疫荧光双染色分析结果显示，CREG蛋白与M6P/IGF2R存在直接结合；②应用抗体阻断实验：将不同浓度的anti- M6P/IGF2R(2、4、8μg /mL)与两种CREG蛋白同时加入培养液中，CREG蛋白抑制VSMC增值、迁移和合成细胞外基质、促进分化的效应减弱，而且与加入anti- M6P/IGF2R浓度正相关。

To further investigate their roles in cell proliferation apoptosis and differentiation, three human leukemia cell lines (K562, U937 and HL60) exposed to various concentration of hexamethylene bisacetamide, a potent inducer of differentiation of transformed cells both in vivo and in vitro, were used as an in vitro model for the study of cell proliferation, differentiation and apoptosis.

为了进一步研究cyclin A和p21在白血病细胞增殖，分化，凋亡中的作用，我们用在体内，外均有抗肿瘤作用的药物六亚甲基二乙酰胺在体外抑制白血病细胞株K562，U937和HL60增殖，诱导其分化，成功地建立了与药物干预浓度呈剂量-效应关系的，具有不同增殖，分化，凋亡状况的实验细胞模型。

TSPG has the similar effect as HGFs, can directly or/and indirected effect and regulate proliferation and differentiation of CD34〓 HSC/HPC to bring into full play in"invigorating qi"of Panax ginseng. 2. During the process of the extensive proliferation, orderly differentiation, functional activation and gene transfer of hematopoietic stem/progenitor cells in ex vivo culture systems, TSPG may be used to regulate the proliferation and differentiation of hematopoietic cells to perform potential application in the domain of hematpoietic stem cell engineering.

我们的研究结果提示：1、TSPG具有类似造血生长因子的功效，能直接或间接影响和调控造血干/祖细胞的增殖与分化，促进血细胞的生成，从而发挥人参&补气生血&之功效。2、在进行对造血干/祖细胞的扩增与诱导分化，功能激活，基因转染等造血干细胞工程研究中可利用人参皂甙的药理作用来调控细胞的增殖分化，发挥其在造血干细胞工程领域的潜在应用价值。

Had rarely or never used protective;(11) MiceGrayAuto had realized the automatic processing of video data from the sexual preference observation system of rats, and MiceGrayManu had accomplished the analysis of images of sexual behaviors of rats;(12) Peripheral given of high dose androgen to female rats before its brain sexual differentiation had caused masculinization and defemininization in female rats, therefore led to homosexuality, and based on the results, we had established the female rat homosexual model;(13) Peripheral given of estrogen to male rats before its brain sexual differentiation had little effects on the sexual preference and sexual behavior of adult rats;(14) Peripheral given of estrogen antagonist to male rats before its brain sexual differentiation had markedly reduced masculine sexual behavior and interfered male sexual preference, but had no effect on feminine sexual behavior, and based on such results, we had established the male rat homosexual model, however the model have to be improved for better sensitivity;(15) The volume of sexually dimorphism nucleus of the preoptic area of the high dose androgen-treated female rats was significantly greater, while on the other hand the volume of AVPV of which was significantly lesser, than the female rat control.

并且有17.79％的男性同性恋者在1年内与异性保持着性关系。但在与异性阴道性交时，绝大多数（92.51％）偶然或不使用安全套；(11)MiceGrayAuto软件实现了大鼠性偏爱视频数据自动处理功能，MiceGrayManu软件实验了大鼠性行为图象分析功能；(12)大脑性分化前高剂量的雄激素有促雌鼠雄性化和去雌性化的作用，并表现为同性性倾向，建立了雌鼠同性恋模型；(13)在雄鼠大脑性分化前外周给予雌激素对成年后的性偏爱和性行为未产生明显影响；(14)在雄鼠大脑性分化前外周给予雌激素拮抗剂明显削弱雄性性行为，阻碍了雄性性偏爱，但雌性行为无明显变化，雄鼠的同性恋模型还有待进一步调整和改进：(15)高剂量雄激素处理的雌鼠SDN-POA体积明显大于对照雌鼠组，而AVPV体积明显小于对照雌鼠组。

C2C12 cells were induced to differentiation into muscle cells in vitro and the myogenesis model was detected by inverted microscope, RT-PCR, western-blot, cell immunofluorescence histochemistry, flow cytometry and confirmed to be successful. On the foundation of differentiation model, miR-206 was detected by northern hybridization and the result showed that the expression level increasing gradually during muscle differentiation with a character of phase specificity.

利用C2C12细胞在体外成功诱导其向成肌细胞分化，通过形态学观察，RT-PCR、western-blot、细胞免疫荧光组织化学及流式细胞仪等方法进行检测，证实我们所建立的细胞分化模型是成功的，并观察到随着诱导时间的延长，miR-206在成肌分化过程中表达量逐渐增高的，表达改变具有阶段特异性。

There are some problems in developing microcosmic syndrome differentiation, such as lack of standard for syndrome differentiation, contradiction between single microcosmic index and the entirety, nonspecificity of the relationship between microcosmic indexes and syndromes, and the influence of disease on microcosmic syndrome differentiation, discrepancy between the essence study of TCM syndromes and the clinical practice.

微观辨证&有其优越性和局限性，&微观辨证&的发展尚存在一些问题，诸如：中医证候尚未规范化、微观指标单一性与整体性的矛盾、微观指标与证候对应的非特异性、疾病对&微观辨证&产生的影响、&证本质研究与临床治疗脱节等。

Many factors may be involve in the course. To investigate the regulation activity of mesenchymal cells to differentiation of epithelial cells from hair follicle and to study its differentiation property, mesenchymal cells gel was made by nubby dermal papilla cells, free dermal papilla cells, skin fibroblasts. Skin keratinocytes and epithelial cells from hair follicle were inoculated on the gel surface and cultured in air-liquid interface. Three-dimensional model of DPC using to induce epithelial cells differentiation is built in vitro.

为了进一步研究毛囊细胞间的相互作用，探讨毛囊间质细胞对毛囊上皮细胞分化的调节作用，研究毛囊上皮细胞的分化特性，我们利用团块状的毛乳头细胞，游离分散的毛乳头细胞或皮肤成纤维细胞制成间质细胞胶原凝胶，表面接种皮肤角质形成细胞或毛囊上皮细胞，进行气-液界面培养，在体外建立了毛乳头细胞诱导毛囊上皮细胞分化的立体模型。

The present study demonstrates that caffeic acid phenethyl ester, a major component of honeybee propolis, enhanced ATRA-induced granulocytic differentiation in HL-60, a human promyelocytic cell line. The differentiation was assessed by Wright-Giemsa stain, nitroblue tetrazolium reduction, and membrane differentiation marker CD11b.

经由实验结果发现，利用化学染剂(Wright-Giemsa stain)观察型态， CAPE也会促进低剂量 ATRA (1nM)分化的效用，而此种分化经由 NBT reduction，和透过流式细胞仪分析分化标的膜蛋白 CD11b/CD14及细胞周期测试后，证实细胞周期停滞 G1 phase与分化现象的机制有关；再藉由免疫沉降法测试，更证实细胞周期停滞将影响 CDK2的活性。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？