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排序方式: 共有271条查询结果,搜索用时 15 毫秒
81.
Renée J Detollenaere Jan den Boon Jelle Stekelenburg Akeel HH Alhafidh Robert A Hakvoort Mark E Vierhout Hugo WF van Eijndhoven 《BMC women's health》2011,11(1):4
Background
Pelvic organ prolapse is a common health problem, affecting up to 40% of parous women over 50 years old, with significant negative influence on quality of life. Vaginal hysterectomy is currently the leading treatment method for patients with symptomatic uterine prolapse. Several studies have shown that sacrospinous fixation in case of uterine prolapse is a safe and effective alternative to vaginal hysterectomy. However, no large randomized trials with long-term follow-up have been performed to compare efficacy and quality of life between both techniques. 相似文献82.
Rath TJ Sundgren PC Brahma B Lieberman AP Chandler WF Gebarski SS 《Neuroradiology》2005,47(3):183-188
Subependymomas are benign intraventricular tumors with an indolent growth pattern, which are usually asymptomatic, and most commonly occur in the fourth and lateral ventricles. When symptomatic, subependymomas often obstruct critical portions of the cerebrospinal fluid (CSF) pathway, causing hydrocephalus, and range from 3 cm to 5 cm in size. We report a case of an unusually massive subependymoma of the lateral ventricles treated with subtotal resection, ventriculoperitoneal shunt, and post-surgical radiation. The clinical course, radiographic and pathologic characteristics of this massive intraventricular subependymoma are discussed, as well as the differential diagnosis of lateral ventricular masses and a review of the literature concerning subependymomas. 相似文献
83.
建立测定复方红甲凝胶中乳糖酸红霉素的含量测定方法。方法:以一阶导数光谱的谷一零位值法测定乳糖酸红霉素的含量,测定波长λ谷=490±lnm。结果:回收率100.6%,RSD为3.1%,线性范围40~120μg/ml。结论:方法简便,结果准确,重现性好,适合于该制剂的含量测定。 相似文献
84.
几种伪随机序列应用于诱发电位检测的性能比较 总被引:3,自引:0,他引:3
伪随机序列技术作为一种快速检测诱发电位的技术已得到重视。本文主要对几种常用序列M序列、巴克序列和格雷互补序列等应用于诱发电位检测时的性能进行研究,分别给出了它们的解卷积算法及用于诱发电位检测时相对于平均法的信噪比改善倍数。理论及实验表明,M序列在检测信噪比改善方面较另两种序列好。 相似文献
85.
Autoregulation of blood flow in the rat kidney 总被引:4,自引:0,他引:4
86.
目的:观察肾移植术后乙型肝炎病毒患者发生拉米夫定耐药后,应用新一代核苷类抗乙型肝炎病毒药物阿德福韦和恩替卡韦的治疗效果。方法:选择2001-05/2006-09于南方医科大学南方医院器官移植科就诊的乙型肝炎病毒感染并发生病毒多聚酶催化域YMDD基序变异,对拉米夫定耐药的肾移植患者4例,患者均知情同意。定期复查血清丙氨酸转氨酶、天冬氨酸转氨酶、总胆红素、乙型肝炎病毒DNA定量及乙型肝炎病毒YMDD变异情况,先后采用拉米夫定、阿德福韦及恩替卡韦进行治疗,并观察其治疗效果。结果:①4例患者分别随访16,26,63,67个月,移植肾功能良好。②4例患者分别在服用拉米夫定14,24,51和62个月(术后12个月)时出现乙型肝炎病毒YMDD变异,乙型肝炎病毒DNA升高至105~109拷贝/mL,肝功能异常。2例加用阿德福韦3个月后撤除拉米夫定,单用阿德福韦治疗,乙型肝炎病毒DNA均降为104拷贝/mL,肝功能正常,其中1例单用阿德福韦9个月后乙型肝炎病毒YMDD变异转阴,另1例单用阿德福韦2个月,乙型肝炎病毒YMDD变异仍为阳性;2例停用拉米夫定,直接换为恩替卡韦,其中1例2个月后肝功能正常,乙型肝炎病毒DNA阴性,乙型肝炎病毒YMDD变异阴性,另1例服药2个月后肝功能正常,乙型肝炎病毒DNA降为104拷贝/mL,乙型肝炎病毒YMDD变异仍为阳性。结论:新型抗乙型肝炎病毒药物阿德福韦和恩替卡韦可有效抑制拉米夫定耐药的乙型肝炎病毒复制,有利于乙型肝炎病毒阳性肾移植患者长期存活。 相似文献
87.
One hundred fifty-four patients with stenosis of the iliac artery underwent percutaneous transluminal angioplasty (PTA). These patients were followed for 1-7 years. The long-term results of the PTAs were analyzed by computer, and life tables were generated for dilatations of the iliac arteries with unimpaired flow and for those with an obstruction in the outflow tract. The accumulative 7-year patency rate was 90%, which agrees with other reports. This study demonstrates that the long-term results of PTA of iliac arterial stenoses are competitive with reconstructive vascular surgery. PTA should be the treatment of choice in patients with iliac arterial stenoses. 相似文献
88.
Signaling and induction of enhanced cytoadhesiveness via the hematopoietic progenitor cell surface molecule CD34 总被引:10,自引:1,他引:9
Majdic O; Stockl J; Pickl WF; Bohuslav J; Strobl H; Scheinecker C; Stockinger H; Knapp W 《Blood》1994,83(5):1226-1234
The transmembrane glycoprotein CD34 shows a highly restricted expression on a crucial subset of hematopoietic cells. We show here that engagement of particular determinants of CD34 can lead to signal transduction and to enhanced adhesiveness of CD34+ hematopoietic cells. Monoclonal antibodies (MoAbs) directed against O-sialoglycoprotease- sensitive epitopes of CD34 (QBEND10, ICH3, BI.3C5, MY10) but not MoAbs against O-sialoglycoprotease-resistant epitopes (9F2, 8G12) induce actin polymerization in KG-1a and KG-1 cells and strongly enhanced cytoadhesiveness. The capacity to induce adhesion requires cellular energy, divalent cations, and intact cytoskeleton but not de novo protein synthesis. The observed cytoadhesion seems at least in part to be caused by a concomitant activation of the beta 2 integrin cytoadhesion pathway. It can be significantly inhibited with lymphocyte function-associated antigen-1 and intercelluar adhesion molecule-1 antibodies. Protein kinase inhibition analyses suggest that the pathways initiated by engagement of the CD34 molecule with certain CD34 MoAbs involves protein tyrosine kinases but that protein kinase C is not critically involved. 相似文献
89.
The effect of polysaccharides on the reaction between erythrocytes and viruses,with particular reference to mumps virus 总被引:5,自引:5,他引:0
Polysaccharides which cause inhibition of the multiplication of mumps virus in the allantoic sac may or may not cause inhibition of hemagglutination by the virus. Moreover, such substances may or may not prevent adsorption of the virus by erythrocytes. The available evidence indicates that polysaccharides active as inhibitors do not block adsorption of mumps virus by cells of the living allantoic membrane. With influenza A, influenza B, and Newcastle disease viruses, as well as with PVM, there also appears to be a lack of correlation between the in vitro and in vivo inhibiting activity of polysaccharides. 相似文献
90.