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先兆子痫及子痫并发HELLP综合征的诊断与治疗（附4例报告） 总被引：1，自引：0，他引：1
先兆子痫及子痫并发ＨＥＬＬＰ综合征的典型症状为上腹部疼痛、恶心、呕吐及出血倾向等，以溶血性贫血、红细胞压积降低、外周血涂片见到异形红细胞、肝酶及胆红素升高，血小板减少等为主要诊断依据。小剂量阿斯匹林和潘生丁联合应用以抗血小板凝聚和及时终止妊娠是最为有效的治疗手段。 相似文献
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Saowaluck Bua-in Yingyong Paisooksantivatana 《Genetic Resources and Crop Evolution》2010,57(3):405-414
The genetic relatedness among 51 accessions, 14 species of the genus Zingiber and genetic variability of a clonally propagated species, Zingiber montanum (Koenig) Link ex Dietr., from Thailand were studied using random amplified polymorphic DNA (RAPD) profiles. Twenty-nine random
primers gave reproducible amplification banding patterns of 607 polymorphic bands out of 611 scored bands accounting for 99.40%
polymorphism across the genotypes. Jaccard’s coefficient of similarity varied from 0.119 to 0.970, indicative of distant genetic
relatedness among the genotype studied. UPGMA clustering indicated eight distinct clusters of Zingiber, with a high cophenetic correlation (r = 1.00) value. Genetic variability in Z. montanum was exhibited by the collections from six regions of Thailand. High molecular variance (87%) within collection regions of
Z. montanum accessions was displayed by AMOVA and also explained the significant divergence among the sample from six collection regions.
Our results indicate that RAPD technique is useful for detecting the genetic relatedness within and among species of Zingiber and that high diversity exists in the clonally propagated species, Z. montanum. 相似文献
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Cassumunar ginger, Zingiber montanum (Koenig) Link ex Dietr. (Zingiberaceae), is called Phlai in Thailand. The current study investigates the levels of antioxidant activity and major volatile oil components in cassumunar ginger exposed to varying water deficits (0, 30, 60, 90 and 120 days before harvest) and light intensities (100%, 50% and 25% sunlight). A 120-day water deficit resulted in high volatile oil content and increased sabinene content, but DPPH scavenging activity was not affected. The quantity of volatile oil in the cassumunar ginger exposed to a 120-day water deficit was almost twice that of both the control and the sample exposed to a 30-day deficit. The highest terpinen-4-ol content was obtained after a 60-day water deficit, and (E)-1-(3′,4′-dimethoxyphenyl) butadiene content tended to decrease with prolonged water deficiency. The antioxidant activities of cassumunar ginger were 52.98%, 41.75% and 42.93% in plants grown at 100%, 50%, and 25% sunlight, respectively. Light intensity of 50% or 25% increased the biomass of cassumunar ginger but decreased the volatile oil content; antioxidant activity was not significantly affected. 相似文献
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管道内喷涂防腐技术的应用 总被引：1，自引：0，他引：1
针对酸性天然气和输卤管道内的严重腐蚀及结垢问题，研究开发出高压无气喷涂新工艺及相适用的涂料，并进行了现场应用试验，结果表明，聚氨酯改性环氧重防腐蚀漆具有优异的耐水性耐强酸碱性，耐硫化物和化工大气腐蚀，介绍了该涂料的涂装工艺，高压无空气喷涂层原理及现场焊口修补方法等，并将高压无空气喷涂与传统的拖涂工艺进行技术经济比较，同时对喷枪控制提出了建议。 相似文献
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以菜心和油麦菜两种蔬菜作物为受体,通过测定辣椒植株水浸液对两种蔬菜作物幼苗生长的影响,对辣椒化感物质的作用进行了研究。结果表明：①低浓度（0.02g/mL）的辣椒水浸提液对菜心的苗长和油麦菜苗长、根长和苗质量均表现为促进作用,对菜心的根长、根质量和油麦菜的根质量有抑制作用;②高浓度（0.06g/mL、0.08g/mL）的辣椒水浸提液对菜心和油麦菜幼苗根长和根质量均表现为抑制作用,随着浓度的加大,抑制作用增强,对菜心幼苗苗长和油麦菜的苗质量有一定的促进作用,随着浓度的加大,促进作用减弱;③浓度为0.04g/mL的辣椒水浸提液对菜心根质量、根长和油麦菜根质量、苗长表现为抑制作用,对菜心的苗长和油麦菜苗质量、根长表现为促进作用。 相似文献
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Allozyme polymorphism at seven loci (TPI, G6PD-2,IDH-1, SKD-2, MDH-1, GOT-1, andGOT-2) was employed to detect the level of geneticdiversity in C.alismatifolia populations from both cultivatedand wild habitats in Thailand. High diversity was observed in allpopulations with relatively lower values in cultivated populations.Percentage of polymorphic loci (P)varied from 85.7–100% in cultivated populations comparedwith 100% in all natural populations. Allele number per locus(A
L) was 3.14 in cultivatedpopulations, and from 2.86–4 in natural populations. Allelenumber per polymorphic locus(A
P) of cultivated andnatural populations ranged from 3.14–3.5 and 2.86–4,respectively. Genetic diversity within populations(H
S) varied from0.586–0.611 in cultivated and from 0.621–0.653 in naturalpopulations. The genetic identity(I
SP) for the species was0.833. The cultivated populations yielded higher value of geneticidentity with highland populations(I
C
/H
=0.776) than with the lowland ones(I
C
/L
=0.754). The analysis of genetic similarities with theNeighbor-Joining algorithm results in the separation ofcultivated populations from all wild populations. One highlandpopulation from the tourist spot, H2, was placed in a separatecluster between the cultivated and other wild populations. It isconsidered as the possible origin of the cultivatedpopulations. 相似文献
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辣椒植株水浸提液对菜心和油麦菜化感作用的初步研究 总被引：2，自引：0，他引：2
通过测定辣椒植株水浸液对菜心和油麦菜种子萌发的影响.对辣椒化感物质的作用进行了研究。试验结果表明,低浓度(0.02 g/ml)的辣椒水浸提液对菜心和油麦莱种子发芽率、发芽势和发芽指数均表现为促进作用,高浓度(0.06,0.08 g/ml)的辣椒水浸提液均表现为抑制作用,随着浓度的加大,抑制作用增强;0.04 g/ml的辣椒水浸提液对菜心和油麦菜种子发芽率、发芽势表现为抑制作用。 相似文献
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黄土不同粒级稀土元素分布特征及其制约因素 总被引：3，自引：0，他引：3
对宁镇地区下蜀黄土和北方黄土高原黄土进行系统的分粒级稀土元素(REE)地球化学特征对比研究,结果表明:(1)无论是北方黄土还是下蜀黄土,REE分布均存在明显的粒级效应:北方黄土的REE主要在细粒端(4μm)富集,粗粒端(64μm)富集不明显;下蜀黄土在细粒端(4μm)和粗粒端(64μm)均呈明显的REE富集特征,且粗粒端的富集更加显著;(2)北方黄土和下蜀黄土在细粒端(4μm)的REE富集主要由风化成壤作用所控制,细粒组分中富集重稀土(HREE)的特征可能与Fe-Mn氧化物对HREE的专性吸附作用有关;(3)下蜀黄土在粗粒端(64μm)则主要以富集轻稀土(LREE)为主,这可能与下蜀黄土母质来源中多近源的区域性特征矿物(榍石等副矿物)有关,揭示下蜀黄土中的粗颗粒物质可能主要来源于近距离搬运。64μm可能是凸显下蜀黄土和北方黄土REE差异的敏感粒级,该粒级中LREE富集与否是区别两者的有效标志,这为REE应用于黄土的物源示踪研究提供了新途径。 相似文献
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彩色多普勒超声在滋养细胞肿瘤的鉴别诊断及治疗中的临床应用 总被引：2，自引：0，他引：2
目的：探讨彩色多普勒超声（ＣＤＦＩ）对滋养细胞肿瘤的鉴别诊断价值及化疗效果的评估。方法：应用ＣＤＦＩ对１１例良性葡萄胎及２３例恶性滋养细胞肿瘤的子宫动脉及肿瘤内的血流进行了检测,３０例正常及异常早孕组作为对照组。结果：（１）良性葡萄胎病灶内未见彩色血流显示,恶性滋养细胞肿瘤内见丰富彩色血流信号,频谱呈高速低阻型;（２）恶性滋养细胞肿瘤的子宫动脉及肿瘤内血管的阻力指数（ＲＩ）显著低于葡萄胎及对照组,差异有非常显著意义（Ｐ＜０．０１）;（３）ＣＤＦＩ监测化疗效果与血β－ＨＣＧ相关性好。结论：ＣＤＦＩ在滋养细胞肿瘤良、恶性的判断及化疗效果的监测上是一个很有价值的方法。 相似文献
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