维普中文期刊产品整合服务
3801篇 您的检索式:作者名="LamB"
    题名 作者 年代 出处 被引量
1Semen analysis in 21st century medicine: the need for sperm function testing显示文摘一旦通常在采用帮助繁殖技术(艺术) 前为不肥沃的夫妇表现了,精子功能测试在全世界从宠爱掉在许多繁殖的药中心里。确实,最近的增加“世界健康组织() 为考试用手、人的精液处理的实验室”现在这些组织许多进节的过程称为研究过程。在大部分,当假定那时,如果一个精子能被作出对有利的裁决,这反映绕过男搭挡的深入的评估的当前的临床的实践 intracytoplasmic 精子注射(ICSI ) ,它一定是能够完成授精的一个健康房间。不过,精子功能测试能提供珍贵临床的卓见进引起男不孕的缺点。在一些情况中,无可否认地,功能的精子缺乏能用艺术被克服。在另外的情况中,夫妇们将被他们的不孕的原因的知识授权,并且也许为一些联合甚至 ICSI 成功的可能性的(相对精子) 。知识允许他们使繁殖决定真正明智,包括(也许) 寻求施主授精,以采用或仍然保持无儿女的决定。他们的不孕的原因的知识可以关于他们繁殖处理的选择为夫妇和信心的一种感觉提供闭合。Dolores J. Lamb 2010Asian Journal of Andrology2010,12,1:25
2The varicocele: diagnostic dilemmas, therapeutic challenges and future perspectives显示文摘精索静脉曲张在精索以内被定义为内部阴囊的静脉和 pampiniform venus 丛的反常膨胀。如果精液分析没从青春期的男性被获得,当另外的症状不在时,主要临床的指示由许多泌尿科医师使用了建议修理是阴囊的萎缩。精索静脉曲张可以在与损害精子引起阴囊的萎缩的一些男性导致阴囊的损坏生产和减少的 Leydig 房间工作,当在另外的男性精索静脉曲张可以看起来不引起有病的效果时。在成年的人,精索静脉曲张经常在场、通过手术可改正,还外科的修理的可测量的好处根据 Cochrane 评论是细微的。当比肥沃的人更通常发生在不肥沃的人时,仅仅,有记录精索静脉曲张的 20% 人将受不了富饶问题。在青少年发现的大多数精索静脉曲张在平淡的体格检查期间被检测,并且预言与精索静脉曲张的青春期的介绍哪个将最终在青春期或成人生活显示出减少的阴囊的功能是困难的。作为在成年人,为在青少年的精索静脉曲张的处理的支柱是外科的修正。然而,不同于成年 varicocelectomy (microsurgical 途径是最普通) ,为青春期的精索静脉曲张的处理更经常是 laparoscopic。不过,治疗的目标是在青春期、成年的病人的一样。至于病人,并且什么类型治疗,,对待开始治疗是最好的争吵遗体。这评论将介绍青春期的精索静脉曲张的病原学,诊断和治疗的当前的理解。Koji Chiba Ranjith Ramasamy Dolores J Lamb Larry I Lipshultz 2016Asian Journal of Andrology2016,18,2:14
3高龄对男性生育力的影响显示文摘在过去的几十年里,现代社会的压力和期望使得育龄夫妇生育年龄总体推迟。已知女性在临近40岁时卵母细胞的产生将会明显减少,而高龄对男性精子生成能力的影响还知之甚少。男性生育年龄无明确限制,因而高龄对男性生育能力的影响还不完全清楚。本文将就目前已知的高龄对男性精子质量、生育能力和子代健康的影响进行综述,希望能在医生就男性推迟生育及高龄相关的风险咨询时起到一定的指导作用。Jason R Kovac Josephine Addai Ryan P Smith Robert M Coward Dolores J Lamb Larry I Lipshultz 2013Asian Journal of Andrology2013,15,6:12
4Role of CD56-expressing immature biliary epithelial cells in biliary atresia显示文摘AIM: To analyze the clinical and pathological parameters and expression of the neural cell adhesion molecule(CD56) in patients with biliary atresia(BA).METHODS: Established clinical laboratory markers of hepatic function, including enzyme activity, protein synthesis, and bilirubin metabolism, were evaluated in patients with BA and compared with those in patients with choledochal cysts and neonatal hepatitis. Pathological changes in tissue morphology and fibrosis were examined by histological and tissue collagen staining. Immunohistochemical staining for the biliary epithelial cell markers CD56 and CK19 together with the Notch signaling related molecules Notch1 and Notch2 was performed in the context of alterations in the structure of intrahepatic biliary ducts.RESULTS: Differences in some clinical laboratoryparameters among the three diseases examined were observed, but they did not correlate with the pathological classification of fibrosis in BA. Immunohistochemical staining showed the presence of CD56-positive immature bile ducts in most patients(74.5%) with BA but not in patients with choledochal cysts or neonatal hepatitis. The number of CD56-expressing cells correlated with disease severity, with more positive cells present in the later stages of liver damage(81.8% vs 18.2%). Furthermore, bile plugs were mainly found in CD56-positive immature biliary ducts. Notch signaling was a key regulatory pathway in biliary duct formation and played a role in tissue fibrosis. Notch1 was co-expressed in CD56-positive cells, whereas Notch2 was found exclusively in blood vessels in the portal area of patients with BA. CONCLUSION: The maturation of biliary epithelial cells and the expression of Notch may play a role in the pathogenesis of BA.Rui-Zhong Zhang Jia-Kang Yu Jiao Peng Feng-Hua Wang Hai-Ying Liu Vincent CH Lui John M Nicholls Paul KH Tam Jonathan R Lamb Yan Chen Hui-Min Xia 2016World Journal of Gastroenterology2016,22,8:8
5Association between calcium sensing receptor gene polymorphisms and chronic pancreatitis in a US population:Role of serine protease inhibitor Kazal 1type and alcohol显示文摘AIM: To test the hypothesis that calcium sensing receptor (CASR) polymorphisms are associated with chronic pancreatitis (CP), and to determine whether serine protease inhibitor Kazal 1type (SPINK1) N34S oralcohol are necessary co-factors in its etiology. METHODS: Initially, 115 subjects with pancreatitis and 66 controls were evaluated, of whom 57 patients and 21 controls were predetermined to carry the high-risk SPINK1 N34S polymorphism. We sequenced CASR gene exons 2, 3, 4, 5 and 7, areas containing the majority of reported polymorphisms and novel mutations. Based on the initial results, we added 223 patients and 239 controls to analyze three common nonsynonymous single nucleotide polymorphisms (SNPs) in exon 7 (A986S, R990G, and Q1011E). RESULTS: The CASR exon 7 R990G polymorphism was signifi cantly associated with CP (OR, 2.01; 95% CI, 1.12-3.59; P = 0.015). The association between CASR R990G and CP was stronger in subjects who reported moderate or heavy alcohol consumption (OR, 3.12; 95% CI, 1.14-9.13; P = 0.018). There was no association between the various CASR genotypes and SPINK1 N34S in pancreatitis. None of the novel CASR polymorphisms reported from Germany and India was detected. CONCLUSION: Our United States-based study confirmed an association of CASR and CP and for the first time demonstrated that CASR R990G is a signifi cant risk factor for CP. We also conclude that the risk of CP with CASR R990G is increased in subjects with moderate to heavy alcohol consumption.Venkata Muddana Janette Lamb Julia B Greer Beth Elinoff Robert H Hawes Peter B Cotton Michelle A Anderson Randall E Brand Adam Slivka David C Whitcomb 2008World Journal of Gastroenterology2008,14,28:7
6Men with a complete absence of normal sperm morphology exhibit high rates of success without assisted reproduction显示文摘在里面结合不孕, 0% 正常形式(NF ) 的反常严格的形态学是一个标准很快继续到在 vitro 授精(IVF ) 。自从没有数据,当前存在,我们与 0% NF 为人调查了结果没有帮助繁殖技术(艺术) 的使用,决定繁殖成功。有 0% NF 的 24 个人的一个队被识别(2010-2013 ) 随机与 ≥ 与 27 选择了人;是的 4% NF 控制。耐心的图表与联系并且管理同意的一块机构的评论板(IRB ) 的人一起被考察查明结果的电话问询表。在 2.5 年的一中部的后续时间以后,有 0% NF 的 29.2% 人没为他们的第一怀孕要求艺术(控制 =55.6% , P ≤0.05 ) 。当所有怀孕一起被分析时,有 0% NF 的人完成了 75% 没要求 IVF 的二十怀孕(控制 = 三十怀孕;76.7% 没要求 IVF ) 。人和女搭挡的平均年龄在有 0% NF 和 ≥ 的人之间是类似的; 4% NF。所有人有正常刺激滤泡的荷尔蒙(FSH ) ,睾丸激素,催乳激素,性别荷尔蒙绑定血球素(SHBG ) ,和 estradiol。尽管,当第一怀孕是一个自然概念(NC ) 时,全球精液参数在有 0% NF 的人是更坏的,有 0% NF (n = 7/7 ) 的人的 100% 并且 37.5% 控制(n = 3/8 ) 继续了经由 NC 有随后的怀孕。没有 IVF,有 0% NF 的人与 55.6% 控制相比在 29.2% 盒子中怀孕了。严格的形态学不应该被用来预言授精,怀孕,或实时出生潜力。在有 0% NF 的人,其他的形式应该被认为 IVF 以前立即。Jason R Kovac Ryan P Smith Miguel Cajipe Dolores J Lamb Larry I Lipshultz 2017Asian Journal of Andrology2017,19,1:7
7Role of functional imaging in the development and refinement of invasive neuromodulation for psychiatric disorders显示文摘Deep brain stimulation(DBS) is emerging as a pow-erful tool for the alleviation of targeted symptoms in treatment-resistant neuropsychiatric disorders. Despite the expanding use of neuropsychiatric DBS, the mecha-nisms responsible for its effects are only starting to be elucidated. Several modalities such as quantitative elec-troencephalography as well a intraoperative recordings have been utilized to attempt to understand the under-pinnings of this new treatment modality, but functional imaging appears to offer several unique advantages. Functional imaging techniques like positron emission tomography, single photon emission computed tomog-raphy and functional magnetic resonance imaging have been used to examine the effects of focal DBS on activ-ity in a distributed neural network. These investigations are critical for advancing the field of invasive neuro-modulation in a safe and effective manner, particularly in terms of defining the neuroanatomical targets and refining the stimulation protocols. The purpose of this review is to summarize the current functional neuroim-aging findings from neuropsychiatric DBS implantation for three disorders: treatment-resistant depression, obsessive-compulsive disorder, and Tourette syndrome. All of the major targets will be discussed(Nucleus ac-cumbens, anterior limb of internal capsule, subcallosal cingulate, Subthalamic nucleus, Centromedial nucleus of the thalamus-Parafasicular complex, frontal pole, and dorsolateral prefrontal cortex). We will also address some apparent inconsistencies within this literature, and suggest potential future directions for this promis-ing area.Nolan R Williams Joseph J Taylor Kayla Lamb Colleen A Hanlon E Baron Short Mark S George 2014World Journal of Radiology2014,6,10:6
8Hyperresolution information and hyperresolution ignorance in modelling the hydrology of the land surface显示文摘There is a strong drive towards hyperresolution earth system models in order to resolve finer scales of motion in the atmosphere.The problem of obtaining more realistic representation of terrestrial fluxes of heat and water,however,is not just a problem of moving to hyperresolution grid scales.It is much more a question of a lack of knowledge about the parameterisation of processes at whatever grid scale is being used for a wider modelling problem.Hyperresolution grid scales cannot alone solve the problem of this hyperresolution ignorance.This paper discusses these issues in more detail with specific reference to land surface parameterisations and flood inundation models.The importance of making local hyperresolution model predictions available for evaluation by local stakeholders is stressed.It is expected that this will be a major driving force for improving model performance in the future.Keith BEVEN Hannah CLOKE Florian PAPPENBERGER Rob LAMB Neil HUNTER 2015Science China Earth Sciences2015,58,1:6
9Downregulation of Hes1 expression in experimental biliary atresia and its effects on bile duct structure显示文摘AIM To analyze the expression and function of the notchsignaling target gene Hes1 in a rhesus rotavirusinduced mouse biliary atresia model. METHODS The morphologies of biliary epithelial cells in biliary atresia patients and in a mouse model were examined by immunohistochemical staining. Then, the differential expression of Notch signaling pathway-related molecules was investigated. Further, the effects of the si RNAmediated inhibition of Hes1 expression were examined using a biliary epithelial cell 3 D culture system.RESULTS Both immature(Ep CAM+) and mature(CK19+) biliary epithelial cells were detected in the livers of biliary atresia patients without a ductile structure and in the mouse model with a distorted bile duct structure. The hepatic expression of transcripts for most Notch signaling molecules were significantly reduced on day 7 but recovered to normal levels by day 14, except for the target molecule Hes1, which still exhibited lower m RNA and protein levels. Expression of the Hes1 transcriptional co-regulator, RBP-Jκ was also reduced. A 3 D gel culture system promoted the maturation of immature biliary epithelial cells, with increased expression of CK19+ cells and the formation of a duct-like structure. The administration of Hes1 si RNA blocked this process. As a result, the cells remained in an immature state, and no duct-like structure was observed.CONCLUSION Our data indicated that Hes1 might contribute to the maturation and the cellular structure organization of biliary epithelial cells, which provides new insight into understanding the pathology of biliary atresia.Rui-Zhong Zhang Xin-Hao Zeng Ze-Feng Lin Ming-Fu Yan-Lu Tong Vincent CH Lui Paul KH Tam Jonathan R Lamb Hui-Min Xia Yan Chen 2018World Journal of Gastroenterology2018,24,29:5
10Obstructive sleep apnea syndrome : an experience in Chinese adults in Hong Kong显示文摘Obstructivesleepapneasyndrome:anexperienceinChineseadultsinHongKongIpMarySM,TsangWTK,LamWKandLamBDepartmentofMedicine,TheUniv...IpMarySM TsangWTK LamWK LamB 1998Chinese Medical Journal1998,,3:5
11Demographic Origins of the Great Recession:Implications for China显示文摘The demographic dividend,that is,the growth of the working age population aged 16years relative to younger and older age dependents,has often been cited as a crucial component of the accelerated economic growth experienced by disparate countries and regions at different points in time.Generally less emphasized are the ramifications of this process when it occurs in reverse;that is,when the relative size of the working age population begins to shrink.Related to this is the more subtle effect of changes to the age structure of the overall working age population,which can have compounding or offsetting effects in relation to the demographic dividend noted above.This paper explores how these age-related phenomena were instrumental to both the Great Depression and the Great Recession of2008.We explore how the generational composition of economic actors and the aging of the baby-boom worker may have played a role in provoking these remarkable recessionary periods.The reversal of the demographic dividend and the aging of the working age population are factors now contributing to the propagation of the global economic downturn,as witnessed in the example of Japan over the past half-century.This paper applies the lessons of the Great Depression,the Great Recession and Japan to offer a forward-looking analysis of the Chinese economy.China is on the precipice of a significant demographic shift whose implications for economic growth are explored.Rafael Gomez Danielle Lamb 2013China & World Economy2013,21,2:4
1247,XXX综合征研究进展显示文摘本文讨论了47,XXX综合征的起因及其表现型。XXX综合征主要是由第一次和第二次减数分裂时的母方染色体不分离错误(Maternal nondisjunctional error)导致的。与其他性染色体非整倍体不同,XXX核型的患者并没有显著的身体特征。患者呈女性,通常高于平均身高,智力发展水平正常或有延滞,大部分人有生育能力且无特定的生理问题。47,XXX综合征与许多疾病存在着可能的联系,但是并没有显著的证据能够支持这些联系。47,XXX综合征患者家长通常会被给予有关患者发育及医学方面隐患的遗传咨询。潘思塑 Bernard Lamb 2007同济大学学报(医学版)2007,28,1:4
1321世纪医学的精液分析:精子功能检测的必要性显示文摘精子功能检测曾经是不孕夫妇进行辅助生殖技术(ART)前普遍采取的检查。如今世界各地的生殖医学中心已忽视了这些检查。精子功能检测操作步骤的确已分组纳入最新出版的《世界卫生组织人类精液分析实验室技术手册》的'研究步骤'章节。这很大程度上反映了此现状,即当前临床实践忽略了对不孕夫妇中男方因素的深入检查。认为如果能找到精子,一定就是健康、具有受精能力的、可进行胞浆内单精子注射(ICSI)的精子。然而,通过精子功能测试,可揭示造成男性不育的精子缺陷,为不孕夫妇提供指导。诚然,在某些情况下,ART可克服某些精子功能缺陷,但在其他情况下,夫妇有权了解不孕不育的原因,甚至ICSI的成功率(和精子有关)。知晓这些,有助于其真正清楚自己的生育状态,以证实是否寻求供精人工授精、领养孩子或维持无子女状态。了解不孕的真正原因,有助于说服不孕夫妇放弃艰难又毫无结果的自然妊娠,更加坚定地选择ART治疗不育。Lamb DJ 马蓉蓉 季灵艳 张爱军 胡洪亮 2010国际生殖健康/计划生育杂志2010,29,3:4
14Sperm counts and sperm sex ratio in male infertility patients显示文摘在最近的年里,调查者在许多工业化国家向男出生的一个衰退比例注意了一个趋势。当人们忍受决定性的染色体时,它与授精或流产相关的女搭挡的角色可以也改变性比率。我们试图由直接检验他的精子的性染色体决定一个人的第二等的性比率(F1 产生) 。我们为在 situ 杂交(鱼) 经历了精液荧光的所有人检验了我们的男不孕诊所数据库。人口统计的病人和精液参数被记录。摆平 Chi 的分析被用来比较性比率(Y 染色体 / 总数染色体) 。Multivariable 逻辑回归被用来预言在财务以后拥有一个忍受 Y 精子为的机会人口统计并且精液参数。185 个人的一个总数经历了精子鱼。为全部队, Y 忍受染色体的精子的比例是 51.5 %。有不到 500 万个能动精子的人有 Y 忍受染色体的精子的一个显著地更低的比例(50.8 %) 与有更高的精子计数的人相比(51.6 %P=0.02 ) 。在 multivariable 调整以后,更高的精子集中,全部的能动精子计数和精液体积显著地增加了有 Y 的机会忍受染色体的精子(P< 0.01 ) 。作为一个人的精子生产衰落,那么做 Y 忍受染色体的精子的比例。因此,一个人的繁殖潜力可以预言他的能力到陛下男性后代。Michael L Eisenberg Lata Murthy Kathleen Hwang Dolores J Lamb Larry I Lipshultz 2012Asian Journal of Andrology2012,14,5:3
15Counting your sperm before they fertilize: are sperm counts really declining?显示文摘Alexander W Pastuszak 2013Asian Journal of Andrology2013,15,2:3
16Epigenetic control of meiotic recombination in plants显示文摘Meiotic recombination is a deeply conserved process within eukaryotes that has a profound effect on patterns of natural genetic variation. During meiosis homologous chromosomes pair and undergo DNA double strand breaks generated by the Spo11 endonuclease. These breaks can be repaired as crossovers that result in reciprocal exchange between chromosomes. The frequency of recombination along chromosomes is highly variable, for example, crossovers are rarely observed in heterochromatin and the centromeric regions. Recent work in plants has shown that crossover hotspots occur in gene promoters and are associated with specific chromatin modifications, including H2 A.Z. Meiotic chromosomes are also organized in loop-base arrays connected to an underlying chromosome axis, which likely interacts with chromatin to organize patterns of recombination.Therefore, epigenetic information exerts a major influence on patterns of meiotic recombination along chromosomes, genetic variation within populations and evolution of plant genomes.YELINA Natasha DIAZ Patrick LAMBING Christophe HENDERSON Ian R. 2015Science China(Life Sciences)2015,58,3:3
17Altered Myocardial Substrate Metabolism and Decreased Diastolic Function in Nonischemic Human Diabetic Cardiomyopathy显示文摘Luuk J. Rijzewijk Rutger W. van der Meer Hildo J. Lamb Hugo W.A.M. de Jong Mark Lubberink Johannes A. Romijn Jeroen J. Bax Albert de Roos Jos W. Twisk Robert J. Heine Adriaan A. Lammertsma Johannes W.A. Smit Michaela Diamant 2009Journal of the American College of Cardiology2009,,16:2
18The influence of film crystallinity on the coupling efficiency of ZnO optical modulator waveguides显示文摘Koch M H Timbrell P Y Lamb R N 1995Semicond Sci Technol1995,10,:2
19护理专业学生对工学结合订单式培养真实体验的研究显示文摘目的深入了解护理专业学生对工学结合订单式培养的真实感受,为探索院校联合订单式培养的新模式提供依据。方法对20名订单式培养的护理专业学生进行访谈,将获得的资料进行编码、分析、整理、提炼主题。结果在进入订单式培养时,学生表达出认同感、自豪感和紧迫感;进入订单式培养后,学生有归属感、主人翁意识、压力感、收获感和感恩感,并提出文化认同培训、增加教学内容、教学方法多样化等需求,以及护理价值感和成就感等职业新感受。结论工学结合订单式培养得到了学生广泛认可,今后应强化用人单位文化价值的引领作用,不断丰富教学内容,优化和改进教学方法。彭幼清 王昕 戴鸿英 Mary J. Lamb 俞海萍 2014中华护理教育2014,11,5:2
20Recent advances in understanding the antibacterial properties of flavonoids显示文摘T.P. Tim Cushnie Andrew J. Lamb 2011International Journal of Antimicrobial Agents2011,,2:2
返回顶部 每页显示:
共191页 首页 上一页 第1页 下一页 末页 /191 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费