查询词典 stem from

A few days ago, 1500 tons when group of Henan day coronal builds / year ferment test-drive of mellow separate project succeeds, the purity of methylic Ding Chun all exceeds methylic Ding Chun of the alcohol of different the fifth of the ten Heavenly Stem that from inside miscellaneous mellow oil depart gives, 3-, 2- 99%, obtain line of business of person of the same trade banner level.

日前，河南天冠集团建设的1500吨/年发酵醇分离项目试车成功，从杂醇油中分离出的异戊醇、3-甲基丁醇、2-甲基丁醇的纯度均超过99%，达到同行业领先水平。

To observe the influence of tumor necrosis factora on differentiation of rat mesencephalic neural stem cells,the numbers of neurons,astrocytes and oligodendrocytes generated from NSCs were analyzed after differentiation for 3 days by using i m munocytoche mistry technique.

为观察肿瘤坏死因子对神经干细胞分化的影响，本研究应用体外扩增的新生大鼠中脑NSCs，使用免疫组织化学技术，观察了肿瘤坏死因子一。对NSC、分化及其后代细胞的影响。

Stem made from hardened Monel K500 for strength and durability.

阀杆采用硬化蒙乃尔合金K500，以增加强度和耐久性。

Methods We used Amphotericin B for fungous septicemia complicated with allo-geneic hematopoietic stem cell transplantation (2 cases of server aplastic anemia, 1 case of acute lymphoblastic leukemia) or chemotherapy (2 cases of chronic lymphoblastic leukemia,5 cases of acute monoblastic leukemia). The long-term of one to three months Amphotericin B was used at total dose range from 1750 to 3115 microgram with drug prophylaxis and care.

对异基因造血干细胞移植3例（SAA 2例、ALL 1 例）和白血病化疗后7例（CLL 2例、M55例），出现真菌性败血症时应用长程（1～3个月）的两性霉素B治疗，总剂量为1750～3115 mg，观察其疗效和并发症，且对并发症采用药物预防和护理。

Majority of acute leukemias in infant, either acute lymphoblastic leukemia or acute myeloblastic leukemia, posses a chromosomal translocation affecting the 11q23 chromosome region which specifically inoles the mixed-lineage leukemia gene.1-3 Most pediatric leukemias with MLL rearrangement clearly hae a remarkably short latency.1,4 MLL gene rearrangement is also associated with secondary leukemias of patients preiously treated with the topoisomerase II inhibitors.4 The latency of these secondary leukemias is similarly ery short.4 Of note, the concordance rate of leukemia with MLL rearrangement in infant monozygotic twins approximates to 100%,1,4 and identical breakpoint in the MLL gene was shared in these pairs of identical twin infants with concordant ALL.1,4 Moreoer, the unique and clonotypic MLL fusion gene was detectable in neonatal blood spots for Guthrie cards from non-twined indiiduals who subsequently deeloped ALL.1,4 These obserations indicate not only that MLL fusion is generated in utero but also that MLL fusion proteins could be capable of inducing leukemic transformation with few, if any, secondary mutations.2,3,4 Greaes et al speculate that an MLL fusion protein somehow promotes rapid transition to full-blown disease in patients ia ery rapid clonal expansion, genetic instability, or inhibition of DNA damage repair.4 In general, for clonal expansion of malignancies, tumor cells often hae acquired strategies that escape immune sureillance of the hosts.5,6 Immune escape mechanisms also contribute to the failure of graft-ersus-leukemia effect after allogeneic hematopoietic stem cell transplantation.7 Therefore, leukemia cells could acquire some immune escape mechanisms during leukemogenesis.

绪论 绝大多数的婴儿白血病，不管是急性淋巴性白血病或是急性骨髓性白血病，在染色体11q23部位有染色体易位的情况；这个部位的染色体易位牵连了混合谱系白血病基因。大多数具有MLL基因重排的儿童白血病潜伏期明显短很多。MLL基因重排也和经拓扑异构酶II抑制剂治疗后的继发性白血病有关。这些继发性白血病的潜伏期类似地都非常的短。很重要的是，单卵双胞胎婴儿同时患有或同时免于MLL基因重排阳性的白血病的一致性接近100%；并且同样患有ALL的同卵双胞胎的MLL基因的断裂点是一致的。而且，这种独特的克隆特异性的MLL融合基因能够从那些得ALL的非双生个体出生时的血斑标本中检测到。这些发现表明MLL融合基因产生在胎儿还在子宫的是后，而且MLL融合蛋白能过和其他的基因突变一起诱导白血病的产生。Greaes 等推测MLL融合蛋白在某种情况下同过快速克隆增殖，遗传的不稳定性或是DNA损伤修复的抑制促使疾病迅速地全面爆发。恶性肿瘤细胞的克隆增殖通常已经获得了逃避机体免疫监视的能力。免疫逃避机制也归因于异体外周血干细胞移植后移植物抗白血病作用的失效。所以，白血病细胞在白血病的产生过程中可能获得了某些免疫逃脱机制。

Myoepithelial cells probably arises from the epithelial stem cells; The culture method of the explands can be used to study cytodifferentiation.

肌上皮细胞可能来源于上皮干细胞；体外组织块培养方法亦适用于细胞分化研究。

The experiment would investigate the time-effect and dose-effect relationship of Tongxinluo on neurocyte lineage development from rat embryonic neural stem cells.

实验拟观察通心络对大鼠胚胎神经干细胞源性神经细胞谱系的影响以及时效、量效的关系。

Objective To explore the isolation and culture conditions of neuroepithelial stem cells from neural tube of embryonic rats and to observe their differentiation characteristics in vitro.

目的探讨大鼠胚胎神经管神经上皮干细胞的分离培养条件，并观察其在体外的分化特性。

Results: Neuroepithelial stem cells derived from the embryonic neural tube could expand into neurospheres in the free serum medium and express nestin.

结果： GFP转基因鼠神经管来源的神经上皮干细胞在无血清培养基内能增殖形成神经球，呈巢蛋白阳性。

After the selection from one to three generations, several mutants were obtained. The major mutants included non-nodule mutants (18 lines) which failed to nodulate after inoculated with rhizobia for two weeks, ineffective nodulation mutants (9 lines) which had less uneven and white or transparent nodules, an abnormal leaf and flower mutant which was dwarf without stipules, abnormal flowers and less nodules, and a slender mutant with a thin stem and smaller leaves.

从种植的三代植株中，筛选到多种共生固氮根瘤的突变体，其中不结根瘤突变体18个株系，表现为接种根瘤菌两周后无根瘤形成；结无效根瘤突变体9个株系，表现为根瘤数目少且分布不均匀，根瘤呈白色，有些为半透明；花叶形态异常突变体1个株系，表现为除根瘤数目少外，植株矮小、托叶消失、花形态异常；纤细突变体1个株系，表现为除根瘤数目少外，植株变小、茎细叶小。

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％。