潜伏期

ResultsBmKE significantly prolonged laten periods of epileptic mice(P＜0.05), BmKE had a few effect on latent periods, the prolonged value of latent periods treated by BmKE was shorter than that treated by BmKE.

结果BmKE能显著延长PTZ致癫痫小鼠的发作潜伏期(P＜0.05)，BmKE作用很小，BmKE治疗组癫痫小鼠发作潜伏期的延长值比BmKE治疗组低。

Results The latent phase of the primary culture cells was 5-9 days, followed by 11-16 days of logarithmical proliferation; the plateau began at day 18-20. The subcultures showed 12-24 hours of latent phase, followed by 7-10 days of logarithmical proliferation, then entered the plateau (11-13 days). The hMSC expressed positive CD44 unanimously, but don′t expressed CD45. Low concentration of bFGF (10 μg·L-1) could stimulate the proliferation of hMSC significantly (P.05); while 25-100 μg·L-1 of bFGF could inhibit the ALP activity.

结果：原代培养细胞生长潜伏期5~9 d，对数增殖期11~16 d，生长平台期18~20 d；传代培养细胞生长潜伏期12~24 h，对数增殖期为7~10 d，11~13 d进入细胞生长平台期。hMSC均一表达CD44，不表达CD45.bFGF在较低浓度（10 μg·L-1）时即有显著的促进hMSC增殖的作用（P.05）， bFGF在25~100 μg·L-1对hMSC的ALP活性有较显著的抑制作用。

The results showed that resistant gene Ht in F1 heterozygote was the most effective on controlling spots number and size; all monogene in heterozygote could produce spore by moisture culture and resistant gene Ht1 was the most effective; resistant gene Ht1 in medium level, Ht3 in high level, and Ht in low level of vertical resistance of heterozygote, were the most effective on controlling spots spread; while Ht2 in high level of vertical resistance of heterozygote was the most ineffective on controlling spots spread; and all resistant monogene in heterozygote showed superior to their parents on controlling incubation period and gene Ht was more significant than other genes.

结果表明，抗性单基因Ht处于F1代杂合状态时，控制病斑数和病斑面积的效应最强；单基因处于杂合状态时，湿培48h病斑全部能产生分生孢子，且处于同一水平抗性杂合状态时，Ht1控制产孢量的效应最强；Ht1处于中水平、Ht3处于高水平和Ht、处于低水平垂直抗性杂合状态下，控制病斑扩展效应最强；而Ht2处于高水平垂直抗性杂合状态下，控制病斑扩展效应最弱；抗性单基因处于杂合状态下，控制潜伏期多表现超亲现象，Ht控制病害潜伏期比其它单基因显著。

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。

As a whole the effective assess ment index of intraoperational monitor had been established, providing reference for the lumbar spondylolisthesis surgery.Taking the SEP index value of postanesthetic patients before operation as the standard, the changes of intraoperational potential may indicate the following status: The latency period decreasing in 10%-15% or the amplitudes increasing in 40% indicated that the outlook of recovery was good enough and the prognosis was favoured.The latency period decreasing in less than 10% or the amplitudes increasing in less than 30% indicated that part of the function could be reduced.

以患者术前以及麻醉后的SEP指标值为基础，术中监测电位指标变化表现形式：①滑脱复位后，若潜伏期缩短10％～15％或波幅增加＞40％，提示预后良好；②监测电位指标平稳，或潜伏期缩短＜10％，或波幅增加＜30％，可继续完成复位，术后可有部分功能恢复和症状改善；③在复位过程中，监测电位指标出现暂时性波动，可在15～20min内恢复到基础电位，应在电位出现波动时停止复位，术后仍可恢复部分功能和改善症状。

Dogs show no indication of heartworm infection during the 6 month long prepatent period prior to the worms' maturation, and current diagnostic tests for the presence of microfilariae or antigens cannot detect prepatent infections.

在心蠕虫成熟之前的6个月的潜伏期内，受到感染的犬只没有任何症状表现。现有的诊断测试无法检出处于潜伏期的感染。

Nape needle can effectively shorten incubation period of BAEP and two peak interval of the patients with pseudobulbar palsy, and can reappear and improve amplitude of wave.

项针能有效缩短假性延髓麻痹病人BAEP各波潜伏期和峰间潜伏期，重现和提高各波波幅；4。

The long latency reflexes might bemonosynaptic responses mediated by dorsal root excitement, while the short latencyreflexes might be sarcous electric activity mediated by direct excitement of motor neuron ormotor fiber.

长潜伏期成分可能是兴奋脊髓背根传入神经后引起的单突触反射；短潜伏期成分可能是直接兴奋脊髓内的运动神经元或运动纤维后向下传导引起的肌肉兴奋电反应。

ResultsESC(the extract of Solidago canadensis L.) markedly prolonged the writhing latent period and decreased the times of writhing of mice induced by ip acetic acid, while it had no obvious effect on the pain threshold value in hot plate test. ESC significantly prolonged the tussive latent period of mice, decreased the tussive times and increased phenolsulfonphthalein excretion quantity of trachea of mice. ESC was nontoxic according to the acute toxicity test.

结果首次对国产加拿大一枝黄花进行了体内药理作用研究，发现加拿大一枝黄花提取物能显著延长醋酸致小鼠扭体潜伏期，减少扭体次数；但未明显提高热板法实验小鼠的痛阈值；能显著抑制浓氨水所致小鼠咳嗽潜伏期和咳嗽次数；显著增加小鼠气管的酚红排泌量；急性毒性实验表明加拿大一枝黄花提取物无明显毒性，既不引起小鼠死亡也不影响小鼠体重正常增加。

Results HWTL and HWCL decreased significantly from day 1 to day 14 after TO injection with the lowest value on day 5 and day 3, respectively, and both recovered on day 21. The number of TRPVl-labeled neurons increased remarkably from day 1 to day 14 with a peak on day 7, and returned back to the normal level on day 21. In control rats, only small and medium-sized TG neurons were immunoreactive to TRPV1,and the TRPV1-IR terminals were abundant in both the vibrissal pad and the Vc.

结果 注射松节油后第1至14天，热退缩反应潜伏期与冷退缩反应潜伏期均明显下降，分别于注射后第5天和第3天达到最低，第21天恢复到正常水平；注射松节油后第1至14天，TRPV1表达的细胞数量增加，并于第7天达到最大，第21天恢复到正常水平。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。