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| 1 | 面向21世纪的卒中新定义:美国心脏病学会和美国卒中学会声明显示文摘尽管脑血管病有着全球性影响且对其病理生理学的认识有了很多进步,但是'卒中'这一术语在临床实践、临床研究或公共卫生评估中的定义却不一致。传统的定义依据于临床,却没有考虑到科学技术的进步。美国心脏协会(AHA)和美国卒中协会(ASA)卒中分会组织了写作小组,为21世纪卒中新定义撰写专家共识性声明。中枢神经系统(CNS)梗死,指由缺血所导致的脑、脊髓或视网膜的细胞死亡,是基于持续性损害的神经病理学、神经影像学和(或)临床证据。CNS梗死表现为一个临床谱:缺血性卒中特指伴有明显症状的CNS梗死,而静息性梗死根据定义指未引起已知的症状的梗死。卒中也还包括脑出血和蛛网膜下腔出血。新定义的卒中结合了临床和组织学标准,可被用于实践、研究和公共卫生评估。 | 俞羚 董荃 宋叶平 江静雯 李卉 刘亮贤 苏爱萍 李焰生 Sacco RL Kasner SE Broderick JP Caplan LR Connors JJ Culebras A Elkind MS George MG Hamdan AD Higashida RT Hoh BL Janis LS Kase CS Kleindorfer DO Lee JM Moseley ME Peterson ED Turan TN Valderrama AL Vinters HV | 2013 | 神经病学与神经康复学杂志2013,10,2: | 188 |
| 2 | Analysis of the phosphatidylinosit ol 3'-kinase signaling pathway in glioblastoma patients in vivo显示文摘Deregulated signaling through the p hosphatidylinositol 3-kinase(PI3K)pathway is common in many types of can cer,including glioblastoma.Dissecting the molecular events associated with activation of this pathway in glioblastoma p atients in vivo presents an important challenge that has implic ations for the development and clini cal testing of PI3K pathway inhibito rs.Using an immunohistochemical analysis appl ied to a tissue microarray,we performed hierarchical clustering and mul tidimensional scaling,as well as univariate and multivariate analyses,to dissect the PI3K pathway in v ivo.We demonstrate that loss of the t umor suppressor protein PTEN,which antagonizes PI3K pathwa y activation,is highly correlated w ith activation of the main PI3K effec tor Akt in vivo.We also show that Akt activation is signific antly correlated with phosphorylation of mammalian target of rapamycin(mTOR),the family of forkhead transcription factors(FOXO1,FOXO3a,and FOXO4),and S6,which are thought to promote its effects.Expression of the mutan t epidermal growth factor receptor vIII is also tightly correlated with phosphorylation of these effectors,d emonstrating an additional route to PI3K pathway activation in glioblastomas in vivo.These results provide the first dissection of the PI3K path way in glioblastoma in vivo and suggest an approach to stratifying patients for targeted kinase inhi bitor | Choe G Horvath S Cloughesy TF Crosby K Seligson D Palotie A Inge L Smith BL Sawyers CL Mischel PS | 2003 | 癌症2003,22,7: | 41 |
| 3 | Growth factor receptors and related signalling pathways as targets for novel treatment strategies of hepatocellular cancer显示文摘Growth factors and their corresponding receptors are commonly overexpressed and/or dysregulated in many cancers including hepatocellular cancer (HCC). Clinical trials indicate that growth factor receptors and their related signalling pathways play important roles in HCC cancer etiology and progression, thus providing rational targets for innovative cancer therapies. A number of strategies including monoclonal antibodies, tyrosine kinase inhibitors ('small molecule inhibitors') and antisense oligonucleotides have already been evaluated for their potency to inhibit the activity and downstream signalling cascades of these receptors in HCC. First clinical trials have also shown that multi-kinase inhibition is an effective novel treatment strategy in HCC. In this respect sorafenib, an inhibitor of Raf-, VEGF- and PDGF-signalling, is the first multi-kinase inhibitor that has been approved by the FDA for the treatment of advanced HCC. Moreover, the serine-threonine kinase of mammalian target of rapamycin (mTOR) upon which the signalling of several growth factor receptors converge plays a central role in cancer cell proliferation. mTOR inhibition of HCC is currently also being studied in preclinical trials. As HCCs represent hypervascularized neoplasms, inhibition of tumour vessel formation via interfering with the VEGF/VEGFR system is another promising approach in HCC treatment. This review will summarize the current status of the various growth factor receptor-based treatment strategies and in view of the multitude of novel targeted approaches, the rationale for combination therapies for advanced HCC treatment will also be taken into account. | Michael Hpfner Detlef Schuppan Hans Scherübl | 2008 | World Journal of Gastroenterology2008,14,1: | 33 |
| 4 | TCP14 and TCP15 Mediate the Promotion of Seed Germination by Gibberellins in Arabidopsis thaliana显示文摘Dear Editor, Seed germination is a major developmental transition in a plant's life that involves the concerted action of several genetic and physiological pathways (Holdsworth et al.,2008),and mostly consists of the resumption of embryo growth after a long quiescence imposed during seed maturation.In mature seeds,germination is repressed by abscisic acid (ABA),while favorable environmental conditions promote gibberellin (GA) biosynthesis and decrease ABA (Holdsworth et al.,2008).The increase in GA levels is essential for the rupture of testa and endosperm (Lee et al.,2002).The activation of cell division in the embryo is an integral part of germination that precedes the protrusion of the root through the seed coat.In Arabidopsis,this activation has been linked to significant early changes in the expression of cell-cycle elements (Masubelele et al.,2005). | Francesca Resentini Amelia Felipo-Benavent Lucia Colombo Miguel A. Blázquez David Alabadí Simona Masiero | 2015 | Molecular Plant2015,8,3: | 25 |
| 5 | Managementofearlyasymptomaticgastrointestinalstromaltumorsofthe stomach显示文摘Gastrointestinal stromal tumors(GIST) are the most common mesenchymal tumors of the digestive tract. Approximately two thirds of clinically manifest tumors occur in the stomach, nearly one third in the small bowel, and the rest in the colorectal region with a few cas-es in the esophagus. GIST originate within the smooth muscle layer in the wall of the tubular gastrointestinal tract and grow mostly toward the serosa, far less often toward the mucosa. In the latter case, ulceration may develop and can cause gastrointestinal bleeding as the cardinal symptom. However, most GIST of the stomach are asymptomatic. They are increasingly detected incidentally as small intramural or submucosal tumors during endoscopy and particularly during endoscopic ultra-sound. Epidemiological and molecular genetic findings suggest that early asymptomatic GIST of the stomach(< 1 cm) show self-limiting tumorigenesis. Thus, early(< 1 cm) asymptomatic gastric GIST(synonym: micro-GIST) are found in 20%-30% of the elderly. The mostlyelderly people with early gastric GIST have an excellent GIST-specific prognosis. Patients with early GIST of the stomach can therefore be managed by endoscopic sur-veillance. | Scherübl H Faiss S Knoefel WT Wardelmann E | 2014 | World Journal of Gastrointestinal Endoscopy2014,6,7: | 23 |
| 6 | 体内腺相关病毒-常间回文重复序列丛集及其相关蛋白9介导的基因编辑可改善家族性高胆固醇血症的动脉粥样硬化显示文摘低密度脂蛋白受体(low-density lipoprotein receptor,Ldlr)基因突变是家族性高胆固醇血症的主要原因之一,可导致动脉粥样硬化,并具有很高的终生心血管病风险。常间回文重复序列丛集(clustered regularly interspaced short palindromic repeats,CRISPR)/CRISPR相关蛋白9(CRISPR-related protein 9,Cas9)系统是基因编辑纠正基因突变从而改善疾病的有效工具。该研究的目的是通过腺相关病毒(adeno-associated virus,AAV)携带的CRISPR/Cas9系统进行体内体细胞基因编辑,以确定其能否在小鼠模型中治疗由Ldlr突变体引起的家族性高胆固醇血症。 | 刘青(译) 叶鹏(审校) Zhao H Li Y He L Pu W Yu W Li Y Wu YT Xu C Wei Y Ding Q Song BL Huang H Zhou B | 2020 | 中华高血压杂志2020,28,3: | 22 |
| 7 | Analysis of the composition of the bacterial community in puffer fish Takifugu obscurus显示文摘 | Yang GM Bao BL Peatman E Li HR Huang LB Ren DM | 2007 | 中国生物学文摘2007,21,8: | 19 |
| 8 | 无创机械通气时单用右美托咪定持续静点镇静的经典用法对血流动力学的影响以及撤药风险显示文摘目的右美托咪定用于儿童重症监护逐渐增加,其作为单一持续镇静药物时的长期效应尚无明确研究。本研究旨在了解长时间应用右美托咪定为唯一持续镇静药物时,其对血流动力学的影响、撤药策略及戒断反应风险因素。设计回顾性病历分析。场所大型单中心四级儿科医学院。对象共纳入382例患儿;〈18岁且于PICU内无创机械通气(non—invasive ventilation,NIPPV)期间仅静点右美托咪定镇静〉24h。干预措施记录右美托咪定常规用药方法。撤药策略分为:骤停,逐渐减停及改为口服可乐定。 | Shutes BL Gee SW Sargel CL 方伯梁 钱素云 | 2018 | 中国小儿急救医学2018,25,3: | 18 |
| 9 | Exploring an Integrative Therapy for Treating COVID-19:A Randomized Controlled Trial显示文摘Objectives:To develop a new Chinese medicine(CM)-based drug and to evaluate its safety and effect for suppressing acute respiratory distress syndrome(ARDS)in COVID-19 patients.Methods:A putative ARDS-suppressing drug Keguan-1 was first developed and then evaluated by a randomized,controlled two-arm trial.The two arms of the trial consist of a control therapy(alpha interferon inhalation,50(x g twice daily;and lopinavir/ritonavir,400 and 100 mg twice daily,respectively)and a testing therapy(control therapy plus Keguan-119.4 g twice daily)by random number table at 1:1 ratio with 24 cases each group.After 2-week treatment,adverse events,time to fever resolution,ARDS development,and lung injury on newly diagnosed COVID-19 patients were assessed.Results:An analysis of the data from the first 30 participants showed that the control arm and the testing arm did not exhibit any significant differences in terms of adverse events.Based on this result,the study was expanded to include a total of 48 participants(24 cases each arm).The results show that compared with the control arm,the testing arm exhibited a significant improvement in time to fever resolution(P=0.035),and a significant reduction in the development of ARDS(P=0.048).Conclusions:Keguan-1-based integrative therapy was safe and superior to the standard therapy in suppressing the development of ARDS in COVID-19 patients.(Trial registration No.NCT 04251871 at www.clinicaltrials.gov). | WANG Jia-bo WANG Zhong-xia JING Jing ZHAO Peng DONG Jing-hui ZHOU Yong-feng YANG Guang NIU Ming ZHAO Xu JIANG Tian-jun Bl Jing-feng XU Zhe ZHANG Ping WU Dan BAI Zhao-fang GUO Yu-ming YU Si-miao SUN Yong-qiang ZHANG Zi-teng ZHAN Xiao-yan LI Peng-yan DING Jin-biao ZHAO Peng-fei SONG Xue-ai TANG Jian-yuan HE Dong-chu CHEN Zhu QIN En-qiang WANG Rui-lin XIAO Xiao-he | 2020 | Chinese Journal of Integrative Medicine2020,26,9: | 18 |
| 10 | Nicotine attenuates beta-amyloid-induced neurotoxicity by regulating metal homeostasis.显示文摘 | Zhang J Liu Q Chen Q Liu NQ Li FL Lu ZB Qin C Zhu H Huang YY He W Zhao BL | 2006 | 中国生物学文摘2006,20,9: | 17 |
| 11 | Clinically detected gastroenteropancreatic neuroendocrine tumors are on the rise: Epidemiological changes in Germany显示文摘AIM:To study the epidemiologic changes of gastroenteropancreatic neuroendocrine tumors(GEP-NET)in Germany,we analyzed two time periods 1976-1988 and1998-2006.METHODS:We evaluated epidemiological data of GEP-NET from the former East German National Cancer Registry(DDR Krebsregister,1976-1988)and its successor,the Joint Cancer Registry(GKR,1998-2006),which was founded after German reunification.Due to a particularly substantial database the epidemiological data from the federal states of Mecklenburg-Western Pomerania,Saxony,Brandenburg and Thuringia,covering a population of more than 10.8 million people,were analyzed.Survival probabilities were calculated using life table analysis.In addition,GEP-NET patients were evaluated for one or more second(non-GEP-NET)primary malignancies.RESULTS:A total of 2821 GEP neuroendocrine neoplasms were identified in the two registries.The overall incidence increased significantly between 1976 and2006 from 0.31(per 100.000 inhabitants per year)to2.27 for men and from 0.57 to 2.38 for women.In the later period studied(2004-2006),the small intestine was the most common site.Neuroendocrine(NE)neoplasms of the small intestine showed the largest absolute increase in incidence,while rectal NE neoplasms exhibited the greatest relative increase.Only the incidence of appendiceal NET in women showed little change between 1976 and 2006.Overall survival of patients varied for sex,tumor site and the two periods studied but improved significantly over time.Interestingly,about 20%of the GEP-NET patients developed one or more second malignancies.Their most common location was the gastrointestinal tract.GEP-NET patients without second malignancies fared better than those with one or more of them.CONCLUSION:The number of detected GEP-NET increased about 5-fold in Germany between 1976 and2006.At the same time,their anatomic distribution changed,and the survival of GEP-NET patients improved significantly.Second malignancies are common and influence the overall survival of GEP-NET patients.Thus,GEP-NET warrant our attention as well as intensive research on their tumorigenesis. | Hans Scherübl Brigitte Streller Roland Stabenow Hermann Herbst Michael Hopfner Christoph Schwertner Joachim Steinberg Jan Eick Wanda Ring Krishna Tiwari Soren M Zappe | 2013 | World Journal of Gastroenterology2013,19,47: | 16 |
| 12 | 低浓度混苯对女工生殖激素分泌的影响显示文摘目的 探讨低浓度混苯作业对女工月经周期生殖激素分泌的影响。方法 对 5 0名暴露组女工采用气相色谱法测定呼吸带空气中的苯、甲苯和二甲苯的浓度 ,对暴露组女工及外对照组和内对照组女工各 35名进行月经周期特征前瞻性调查 ,用酶免疫分析法测定尿液中的孕二醇 3 葡糖苷酸 (PdG)、雌酮结合物 (E1C)和卵泡刺激素 (FSH)。结果 空气中混苯以低浓度苯为主 ,苯检出率2 9 10 %、浓度 8 88(0 90~ 876 47)mg/m3 、超标率 2 1%、最大超标倍数 2 0 91倍 ;与内对照组和外对照组相比 ,低浓度混苯接触组女工黄体期长度缩短 ;与内对照组相比 ,暴露组的排卵前E1C水平、卵泡早期FSH水平以及卵泡早期和黄体期PdG水平明显降低。结论 低浓度混苯可以干扰接触女工下丘脑 垂体 卵巢轴中FSH、雌激素和孕激素的正常水平目的 探讨低浓度混苯作业对女工月经周期生殖激素分泌的影响。方法 对 5 0名暴露组女工采用气相色谱法测定呼吸带空气中的苯、甲苯和二甲苯的浓度 ,对暴露组女工及外对照组和内对照组女工各 35名进行月经周期特征前瞻性调查 ,用酶免疫分析法测定尿液中的孕二醇 3 葡糖苷酸 (PdG)、雌酮结合物 (E1C)和卵泡刺激素 (FSH)。结果 空气中混苯以低浓度苯为主 ,苯检出率2 9 10 %、浓度 8 88(0 90~ 876 | 陈海燕 王心如 徐莉春 Lasley BL Overstreet JW 戴建国 张绮 邢厚恂 杜冰 徐希平 | 2001 | 中华预防医学杂志2001,35,2: | 16 |
| 13 | 粉末注射成形不锈钢——制取工艺、性能、应用——显示文摘讨论了粉末注射成形可以制备哪些不锈钢 ;现在用粉末注射成形已能制备哪些不锈钢 ;在制备这些不锈钢时哪些工艺应特别予以关注。由这些不锈钢制成的MIM零件所能达到的磁性能、力学性能和耐腐蚀性能。最后 。 | Hans Wohlfromm Martin Blmacher Dieter Weinand 曹勇家 | 2002 | 粉末冶金工业2002,12,4: | 14 |
| 14 | Management of early gastrointestinal neuroendocrine neoplasms显示文摘Neuroendocrine neoplasms (NENs) of the stomach, duo- denum, appendix or rectum that are small (≤ 1 cm) and well differentiated can be considered 'early' tumors, since they generally have a (very) good prognosis. In the new WHO classification of 2010, these neoplasms are called neuroendocrine tumors/ carcinoids (NETs), grade (G) 1 or 2, and distinguished from poorly differentiated neuroendocrine carcinomas (NECs), G3. NETs are increasing, with a rise in the age-adjusted incidence in the U.S.A. by about 700 % in the last 35 years. Improved early detection seems to be the main reason for these epidemiological changes. Both the better generalavailability of endoscopy, and imaging techniques, have led to a shift in the discovery of smaller-sized (≤ 10-20 mm) intestinal NETs/carcinoids and earlier tumor stages at diagnosis. Endoscopic screening is therefore effective in the early diagnosis, not only of colorectal adenocarcinomas, but also of NETs/carcinoids. Endoscopic removal, followed up with endoscopic surveillance is the treatment of choice in NETs/carcinoids of the stomach, duodenum and rectum that are ≤ 10 mm in size, have a low proliferative activity (G1), do not infiltrate the muscular layer and show no angioinvasion. In all the other intestinal NENs, optimal treatment generally needs surgery and/or medical therapy depending on type, biology and stage of the tumor, as well as the individual situation of the patient. | Hans Scherübl Robert T Jensen Guillaume Cadiot Ulrich Stlzel Günter Klppel | 2011 | World Journal of Gastrointestinal Endoscopy2011,3,7: | 13 |
| 15 | 脑卒中后认知运动干预对步态和平衡影响显示文摘当认知和运动任务同时完成时,会发生认知运动干预(CMI)。该技术已用于运动医学康复来增强疗效。本综述和荟萃分析研究了在脑卒中患者中,CMI用于改善步态和平衡的疗效。本文检索了多个数据库,筛选出了发表于1972年到2014年间的随机对照试验——包括成年脑卒中患者CMI治疗组和对照组。主要评价指标为步态和平衡评定,次要评价指标为日常生活能力以及功能独立性评定。 | Wang XQ Pi YL Chen BL 吴毅 | 2015 | 中国康复2015,30,5: | 13 |
| 16 | Tyrosine kinase of insulin-like growth factor receptor as target for novel treatment and prevention strategies of colorectal cancer显示文摘AIM: To investigate the antineoplastic potency of the novel insulin-like growth factor 1 receptor (IGF-1R) tyro- sine kinase inhibitor (TKI) NVP-AEW541 in cell lines and primary cell cultures of human colorectal cancer (CRC). METHODS: Cells of primary colorectal carcinomas were from 8 patients. Immunostaining and crystal violet stain- ing were used for analysis of growth factor receptor pro- tein expression and detection of cell number changes, respectively. Cytotoxicity was determined by measuring the release of the cytoplasmic enzyme lactate dehydro- genase (LDH). The proportion of apoptotic cells was determined by quantifying the percentage of sub-G1 (hypodiploid) cells. Cell cycle status reflected by the DNA content of the nuclei was detected by flow cytometry. RESULTS: NVP-AEW541 dose-dependently inhibited the proliferation of colorectal carcinoma cell lines and primary cell cultures by inducing apoptosis and cell cycle arrest. Apoptosis was characterized by caspase-3 activa- tion and nuclear degradation. Cell cycle was arrested at the G1/S checkpoint. The NVP-AEW541-mediated cell cycle-related signaling involved the inactivation of Akt and extracellular signal-regulated kinase (ERK) 1/2, the upregulation of the cyclin-dependent kinase inhibitors p21Waf1/CIP1 and p27Kip1, and the downregulation of the cell cycle promoter cyclin D1. Moreover, BAX was upregu- lated during NVP-AEW541-induced apoptosis, whereas Bcl-2 was downregulated. Measurement of LDH release showed that the antineoplastic effect of NVP-AEW541 was not due to general cytotoxicity of the compound. However, augmented antineoplastic effects were ob-served in combination treatments of NVP-AEW541 with either 5-FU, or the EGFR-antibody cetuximab, or the HMG-CoA-reductase inhibitor fluvastatin. CONCLUSION: IGF-1R-TK inhibition is a promising novel approach for either mono- or combination treatment strategies of colorectal carcinoma and even for CRC che- moprevention. | Michael Hpfner Andreas P Sutter Alexander Huether Viola Baradari Hans Scherübl | 2006 | World Journal of Gastroenterology2006,12,35: | 10 |
| 17 | Histone deacetylase inhibitor MS-275 alone or combined with bortezomib or sorafenib exhibits strong antiproliferative action in human cholangiocarcinoma cells显示文摘AIM: To investigate the antiproliferative effect of the histone deacetylase (HDAC) inhibitor MS-275 on cholangiocarcinoma cells alone and in combination with conventional cytostatic drugs (gemcitabine or doxorubicin) or the novel anticancer agents sorafenib or bortezomib. METHODS: Two human bile duct adenocarcinoma cell lines (EGI-1 and TFK-1) were studied. Crystal violet staining was used for detection of cell number changes. Cytotoxicity was determined by measuring the release of the cytoplasmic enzyme lactate dehydrogenase (LDH). Apoptosis was determined by measuring the enzyme activity of caspase-3. Cell cycle status reflected by the DNA content was detected by flow cytometry.RESULTS: MS-275 treatment potently inhibited the proliferation of EGI-1 and TFK-1 cholangiocarcinoma cells by inducing apoptosis and cell cycle arrest. MS-275-induced apoptosis was characterized by activation of caspase-3, up-regulation of Bax and down-regulation of Bcl-2. Cell cycle was predominantly arrested at the G1/S checkpoint, which was associated with induction of the cyclin-dependent kinase inhibitor p21Waf/CIP1. Furthermore, additive anti-neoplastic effects were observed when MS-275 treatment was combined with gemcitabine or doxorubicin, while combination with the multi-kinase inhibitor sorafenib or the proteasome inhibitor bortezomib resulted in overadditive anti-neoplastic effects.CONCLUSION: The growth of human cholangiocarcinoma cells can be potently inhibited by MS-275 alone or in combination with conventional cytostatic drugs or new, targeted anticancer agents. | Viola Baradari Michael Hpfner Alexander Huether Detlef Schuppan Hans Scherübl | 2007 | World Journal of Gastroenterology2007,13,33: | 10 |
| 18 | Neuroendocrine tumors of the small bowels are on the rise:Early aspects and management显示文摘Neuroendocrine tumors of the small bowel are on the rise. In the US they have increased by 300%-500% in the last 35 years. At the same time their prognosis is much improved. Today,most neuroendocrine tumors (NETs) of the duodenum are detected 'incidentally' and therefore recognized at an early stage. Duodenal NETs which are well differentiated,not larger than 10 mm and limited to the mucosa/submucosa can be endoscopically resected. The management of duodenal NETs ranging between 10 and 20 mm needs an interdisciplinary discussion. Endoscopic ultrasound is the method of choice to determine tumor size and depth of infiltration. Surgery is recommended for well-differentiated duodenal NET tumors greater than 20 mm,for localized sporadic gastrinomas (of any size) and for localized poorly differentiated NE cancers. Surgery is recommended for any ileal NET. Advanced ileal NETs with a carcinoid syndrome are treated with longacting somatostatin analogs. This treatment significantly improves (progression-free) survival in patients with metastatic NETs of the ileum. For optimal NET management,tumor biology,type,localization and stage of the neoplasm,as well as the patient's individual circumstances have to be taken into account. | Hans Scherbl Robert T Jensen Guillaume Cadiot Ulrich Stlzel Gnter Klppel | 2010 | World Journal of Gastrointestinal Endoscopy2010,2,10: | 10 |
| 19 | 利用T_1加权DCE-MRI技术对脑胶质瘤分级显示文摘应用T1加权动态对比度增强磁共振成像(DCE-MRI)技术对脑胶质瘤进行术前分级,验证其用于脑胶质瘤分级的准确性和可重复性。对26例脑胶质瘤患者团注Gd-DTPA对比剂后,以1.5TSiemens Syngo MRI扫描仪采集DCE T1加权图像。首先基于改进的Tofts两室药物动力学模型,从采集到的动态组图像建立病灶区感兴趣区内的平均信号强度-时间曲线,然后应用非线性最小二乘拟合方法对该曲线进行拟合,获取定量参数。这些参数包括:初始增强率ER、回流速率常数Kep、排泄速率常数Kel、曲线下面积AUC、峰值高度PH、到达峰值的时间TTP,最后与临床组织病理学结果进行比较,建立这些定量参数与脑胶质瘤分级之间的定量关系。采用独立样本t检验比较任意两个分级之间各定量参数的统计学差异,P<0.05作为统计学差异标准。ER、AUC和PH随着脑胶质瘤的病理分级由低到高地增加;低级别脑胶质瘤中的Ⅰ与Ⅱ级之间以及高级别中的Ⅲ与Ⅳ级之间的比较结果显示,ER、AUC和PH的值均无明显统计学差异(P>0.05);低级别与高级别级之间的比较结果显示,仅参数ER的差异具有统计学意义(P<0.05)。ER是术前准确界定脑胶质瘤低级别与高级别的最具敏感性和特异性的参数,其界定阈值约为0.68。 | 邓振生 张娜 孟莉 王小宜 廖伟华 HOU BL | 2010 | 中国生物医学工程学报2010,29,1: | 9 |
| 20 | 小胶质细胞再激活可缓解脑损伤后炎症反应并促进脑功能恢复显示文摘中枢神经系统疾病或损伤后,小胶质细胞介导的慢性神经炎症反应会损伤局部脑组织,加重病情,不利于神经功能的恢复。小胶质细胞的激活通过集落刺激因子1受体(CSF1R)信号通路,CSF1R抑制剂可阻断小胶质细胞的激活。抑制慢性神经炎症反应是治疗中枢神经系统疾病的有效方法,但长时间抑制小胶质细胞在临床实践中无法实现。值得注意的是,去掉CSF1R抑制剂可刺激中枢神经系统内新的小胶质细胞的彻底重激活。本课题组建立小鼠广泛性神经元丢失模型,在该模型中探讨急性小胶质细胞的消除及再激活的作用。神经元的丢失导致了较长时间的神经炎性反应,表现为小胶质细胞肿胀,并表达CD68和CD45;同时,细胞因子、趋化因子、补体及其他炎症信号的表达增加。小胶质细胞的再激活可以缓解上述炎症反应,还可以促进小鼠神经功能的恢复,即使该小鼠的海马神经元丢失80%,其在水迷宫测试中的得分与正常小鼠的得分相差无几。对突触的分析结果显示,小胶质细胞的再激活可增加PSD95和突触泡蛋白点状突触体的表达,提示小胶质细胞有助于重塑和调节突触的形态和功能。综上所述,本研究结果显示,小胶质细胞的短时间消除及再激活可能是一种新颖有效的方法用于减少神经炎性反应并促进脑功能恢复。 | Rice RA Pham J Lee RJ Najafi AR West BL Green KN 唐颖馨(编译) | 2017 | 神经损伤与功能重建2017,12,3: | 9 |