Results 21 to 30 of about 17,698 (158)
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 5, Page 624-632, May 2025.ABSTRACT Objectives Placental insufficiency contributes to many obstetric pathologies, but there is no bedside clinical tool to evaluate placental perfusion. We have developed a method to acquire multiple three‐dimensional (3D) power Doppler (PD) ultrasound (US) volumes of placental vasculature, with infrared camera tracking of the precise spatial ...
A. Xue +5 more
wiley +1 more source
Roles of Receptor UNC5B in Vascular Development and Tumor Metastasis [PDF]
, 2012 血管和神经系统都构成复杂的分支网络，遍布身体的各个区域，并提供信息的双向流动（感觉和运动神经元；动脉和静脉血流）。在体内分布上血管和神经纤维也总是相伴而行到达同一远隔靶位，二者在结构和功能上的相似性，暗示着它们可能受到某些共同信号分子调控。很多神经导向因子都参与了对血管生长发育的调节。UNC5B是首个被证实参与血管发育调控的UNC5受体。但目前对于UNC5B在血管发育中的作用因所使用的动物模型以及UNC5B基因敲除后对表型分析的不同而存在很大的争议，争议的焦点在于UNC5B是促进，还是抑制血管的发育 ...
解宏
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Zhongguo shiyan zhenduanxue, 2001 肿瘤生长和转移是血管生成依赖性的 ,它分泌两类相拮抗的因子—血管生成刺激因子和抑制因子 ,刺激和抑制相互作用决定了肿瘤的血管生成活性。检测肿瘤组织或血清、尿等多种体液中血管生成刺激和抑制因子 ,可提供反映肿瘤血管生成活性的信息 ,有可能成为预示肿瘤发展、转移及预后的新的敏感指示剂。
赵建华
doaj
Effect of Ciji Hua’ai Baosheng Formula on tumor microvessel density and pathological angiogenesis factors of mice receiving chemotherapy for the treatment of H22 hepatocellular carcinoma [PDF]
, 2016 研究目的： 研究及证实慈济化癌保生方（CijiHua’aiBaoshengFormula，CHBF）对肝癌H22荷瘤小鼠化疗后肿瘤微血管的影响。通过观察小鼠一般生存状况、测量体重、瘤重和计算抑瘤率，观察肿瘤微血管密度（microvesseldensity，MVD）以及对血清与肿瘤组织血管内皮生长因子（vascularendothelialgrowthfactor，VEGF）、VEGF受体-含激酶插入结构域的受体（kinaseinsertdomain-containingreceptor，KDR ...
赵心悦
core
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 1, Page 85-93, January 2025.ABSTRACT Objective Accurate differentiation between placenta accreta spectrum (PAS) and uterine‐scar dehiscence with underlying non‐adherent placenta is often challenging, even for PAS experts, both prenatally and intraoperatively. We investigated the use of standardized two‐dimensional grayscale ultrasound and Doppler imaging markers in ...
T. Adu‐Bredu +3 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2008 【目的】研究人血管内皮细胞在建立NOD/SCID小鼠白血病微血管中的作用。【方法】NOD/SCID小鼠分3组:A空白对照组,B注射EC组,C建立白血病模型后注射EC组。通过免疫组化对NOD/SCID小鼠骨髓的血管生成及全身肿瘤负荷情况进行评价。【结果】C组骨髓微血管密度明显大于A、B组,白血病新生的微血管分支多紊乱,管腔较不规则,血管形态幼稚。【结论】用人血管内皮细胞成功建立NOD/SCID小鼠白血病微血管生成模型,可用于抗白血病血管生成及相关实验的研究。
郭海霞, 梁立阳, 吴燕云, 陈纯
doaj
Effects of Recombinant Human Endostatin and Docetaxel on MMP and its Following Anti-neoplastic Effect under Different Administration Sequences [PDF]
, 2010 Background and objective The aim of this study is to observe the changes of MMP-2 and its regulators, and to investigate the mechanism of the two administration sequences of recombinant human endostatin (rh-endostatin) and docetaxel.
Jing YUAN, Kai LI
core
Photodynamic and antiangiogenic effect of fullerene-cyclodextrin/thalidomide inclusion compound [PDF]
, 2016 近年来肿瘤发病率有呈上升的趋势，由于传统治疗方法有风险大、毒副作用强等弊端，人们积极寻找更安全有效的治疗手段。光动力治疗（photodynamictherapy，PDT）具有非侵入性、可多次安全重复使用等优点。抗肿瘤血管生成治疗（antiangiogenictherapy）以肿瘤血管内皮细胞为作用靶点，系统毒性较小，不易产生耐药性，与肿瘤化学药物联用可以起到协同效应。纳米颗粒输送系统基于生物体实体瘤的高通透性和滞留效应（enhancedpermeabilityandretentioneffect，EPR）
周童
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Equine Veterinary Journal, Volume 57, Issue 1, Page 87-100, January 2025.Abstract Background Radiological findings in the proximal sesamoid bones (sesamoids) are a persistent source of controversy at Thoroughbred sales, due to inconsistent classification and conflicting assignment of potential clinical importance. Objectives To define the prevalence of sesamoid findings on sales repository radiographs in yearling and 2‐year‐
Frances J. Peat +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2020 氧化三甲胺(TMAO)是在人体摄入富含胆碱、左旋肉碱、卵磷脂等高脂营养物质后经肠道微生物转化后生成三甲胺(TMA),而后在肝脏的作用下生成的一种小分子化合物[1]。有相关研究表明,心血管疾病及不良心血管事件的发生与TMAO的产生、代谢过程相关,因此TMAO或可作心血管疾病诊断及治疗的潜在靶点[2,3]。本文就TMAO的生物学特性及其与心血管疾病的联系进行综述。
吴箴言 +5 more
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