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1帕博利珠单抗治疗伴脑转移NSCLC患者的一项非随机、开放Ⅱ期试验的长期随访结果和生物标志物分析显示文摘背景与目的我们开展了一项帕博利珠单抗用于伴未治疗脑转移的非小细胞肺癌(non-small cell lung cancer,NSCLC)或黑色素瘤患者的疗效和安全性的II期试验,旨在评估程序性死亡受体1(programmed cell death 1,PD-1)抑制剂在中枢神经系统(central nervous system,CNS)中的疗效。中期结果已发表,现报道对NSCLC队列的更新分析结果。方法这是一项开放性、单中心、II期试验。纳入标准:年龄≥18岁,诊断为晚期NSCLC并伴有≥1个5 mm-20 mm脑转移病灶,既往从未治疗或之前放疗后进展,无神经系统症状,不需要激素治疗且美国东部肿瘤协作组(Eastern Cooperative Oncology Group,ECOG)<2分。患者每2周接受一次帕博利珠单抗(10 mg/kg)治疗。队列1为程序性死亡配体1(programmed cell death ligand 1,PD-L1)≥1%的患者,队列2为PD-L1<1%或未评估的患者。主要终点是脑转移患者缓解比例。所有经治患者均纳入疗效与安全性终点的分析。该研究已结束入组,并于Clinicaltrials.gov登记注册,注册号为NCT02085070。结果2014年3月31日-2018年5月21日,共42例患者接受治疗。中位随访时间为8.3个月(IQR:4.5个月-26.2个月)。队列1的37例患者中11例有脑转移缓解[29.7%(95%CI:15.9%-47.0%)]。队列2未观察到缓解。治疗相关的3级-4级不良事件(adverse events,AEs)包括2例肺炎、1例全身症状、1例结肠炎、1例肾上腺皮质功能不全、1例高血糖症和1例低钾血症。6例(14%)患者发生了治疗相关的严重不良事件,包括肺炎、急性肾损伤、低钾血症和肾上腺皮质功能不全。没有观察到治疗相关死亡病例。结论帕博利珠单抗治疗PD-L1≥1%的NSCLC伴脑转移患者有效,且对所有纳入的未经治疗的脑转移患者安全。需要进一步探索免疫治疗用于NSCLC合并CNS转移。Sarah B GOLDBERG Kurt A SCHALPER Scott N GETTINGER Amit MAHAJAN Roy S HERBST Anne C CHANG Rogerio LILENBAUM Frederick H WILSON Sacit Bulent OMAY James B YU Lucia JILAVEANU Thuy TRAN Kira PAVLIK Elin ROWEN Heather GERRSH Annette KOMLO Richa GUPTA Hailey WYATT Matthew RIBEIRO Yuval KLUGER Geyu ZHOU Wei WEI Veronica L CHANG Harriet M KLUGER 董晓荣(翻译/校对) 2021中国肺癌杂志2021,24,9:34
2最新AD研究用诊断标准:IWG-2标准显示文摘在过去的8年中,国际工作组织(IWG)和美国国立老化研究院-阿尔茨海默协会(NIA-AA)建立了阿尔茨海默病(AD)诊断标准,它能更好地定义AD的临床表型,整合了生物标记物于诊断流程中,并覆盖了疾病的全程。本意见书充分地权衡了IWG标准的优缺点,建议改进诊断框架。依据这些改进,AD的诊断变得简单,只要有恰当的AD临床表型(典型或不典型)和与AD的病理相一致的病理生理学生物标志物出现。我们认为疾病的下游的定位性生物标志,如容积性磁共振成像(MRI)和氟脱氧葡萄糖-正电子发射型计算机断层成像(FDG-PET)等,适合更好地测量和监测疾病过程。本文还详述了非典型性AD、混合性AD和AD临床前期的特异诊断标准。陈刚 曹雯炜 俞羚 糜建华 Dubois B Feldman HH Jacova C Hampel H Molinuevo JL Blennow K DeK osky ST Gauthier S Selkoe D Bateman R Cappa S Crutch S Engelborghs S Frisoni GB Fox NC Galasko D Habert MO Jicha GA Nordberg A Pasquier F Rabinovici G Robert P Rowe C Salloway S Sarazin M Epelbaum S de Souza LC Vellas B Visser PJ Schneider L Stern Y Scheltens P Cummings JL 2014神经病学与神经康复学杂志2014,11,3:31
3一项中断时间序列研究与集群随机试验:减少耐药细菌在重症监护室中定植和传播的干预措施显示文摘背景 重症监护室(ICU)是耐药细菌传播的高危科室,在设置标准预防措施时缺乏对"全面筛查和隔离携带或感染耐药细菌者"效果评估的对照研究,本研究评估此干预措施对减少ICU中耐药细菌的定植与传播的效果.曾翠 吴安华 Derde L P G Cooper B S Goossens H 2014中国感染控制杂志2014,13,1:23
4Application of high silica zeolite ZSM-5 in a hybrid treatment process based on sequential adsorption and ozonation for VOCs elimination显示文摘In this study,a hydrophobic synthetic zeolite,namely ZSM-5 is chosen as an adsorbent/catalyst for toluene removal.Experimental results showed that toluene adsorption onto ZSM-5 was favourable,following a Langmuir adsorption isotherm model.ZSM-5 zeolite was regenerated using gaseous ozone at low temperature.Adsorbed toluene was oxidised,releasing mainly CO_2 and H_2O.Traces of oxidation by-products such as acetic acid and acetaldehyde were formed and remained adsorbed after the oxidativate regeneration with ozone.After four successive cycles of adsorption/ozonation,the adsorption efficiency was not affected(92%-99%).These results showed that volatile organic compound(VOC)removal by adsorption onto ZSM-5 zeolite followed by ozone regeneration could be used as a promising hybrid process for the control of VOC emissions in terms of efficiency.Hicham Zaitan Marie Hélène Manero Héctor Valdés 2016Journal of Environmental Sciences2016,28,3:23
5世界卫生组织(WHO)造血与淋巴组织肿瘤分类方案:临床顾问委员会会议报告显示文摘引言 :从 1995年开始 ,欧洲病理学工作者协会和血液病理学会一直致力于制定一个新的世界卫生组织 (WHO)血液恶性肿瘤分类方案 ,该分类方案包括淋巴系肿瘤、髓系肿瘤、组织细胞肿瘤和肥大细胞肿瘤。 材料与方法 :此项 WHO计划共组成十个病理学工作者委员会 ,负责确定病种和作出定义。另外还成立一个由国际血液学家和肿瘤学家组成的临床顾问委员会 (CAC)以保证该分类的临床实用性。 1997年 11月召开会议讨论了与该分类有关的临床问题。 结果 :WHO采纳了 1994年国际淋巴瘤研究组 (IL SG)报告的修订欧美淋巴系肿瘤分类 (REAL)方案作为淋巴系肿瘤的分类方案。该方案的分类方法遵循以下原则 :分类应是联合应用形态学、免疫表型、遗传特征及临床特征能够清楚界定的“真实存在”(“real”)病种的名录 ,上述各项特征的相对重要性因病种不同而异 ,不存在任何“金标准”。 WHO将 REAL分类原则延用于髓系肿瘤和组织细胞肿瘤 ,髓系肿瘤的分类包括联合应用细胞形态学和细胞遗传学异常能够界定的各个病种。围绕一系列临床问题召集的这次 CAC会议 ,就提交的大多数问题达成共识 ,这些问题及共识将详述于下。对于另外一些问题 ,CAC认为淋巴系肿瘤临床分组既无必要也不必需 ,患者的治疗取决于淋巴瘤的具体类型 ,如有?N L Harris E S Jaffe J Diebold G Flandrin H K Muller-Hermelink J Vardiman T A Lister C D Bloomfield 张凤奎 郝玉书 2001白血病.淋巴瘤2001,10,3:20
6在没有危险因素的情况下,正常的低密度脂蛋白胆固醇水平与亚临床动脉粥样硬化相关显示文摘普遍认为缺乏心血管病危险因素(cardiovascular risk factors,CVRF)人群的动脉粥样硬化发生风险低,然而,无CVRF的个体仍然有心血管事件发生。为了确定无CVRF个体中亚临床动脉粥样硬化的预测因子,Fernández-Friera L Fuster V López-Melgar B Oliva B García-Ruiz JM Mendiguren J Bueno H Pocock S Ibánez B Fernández-Ortiz A Sanz J 刘莉 叶鹏 2017中华高血压杂志2017,25,12:17
7Accuracy and responses of genomic selection on key traits in apple breeding显示文摘The application of genomic selection in fruit tree crops is expected to enhance breeding eficiency by increasing prediction accuracy,increasing selection intensity and decreasing generation interval.The objectives of this study were to assess the accuracy of prediction and selection response in commercial apple breeding programmes for key traits.The training population comprised 977 individuals derived from 20 pedigreed fllsib families.Historic phenotypic data were available on 10 traits related to productivity and fruit external appearance and genotypic data for 7829 SNPs obtained with an llumina 20K SNP array.From these data,a genome-wide prediction model was built and subsequently used to calculate genomic breeding values of five application fllsib families.The application families had genotypes at 364 SNPs from a dedicated 512 SNP array,and these genotypic data were extended to the high-density level by imputation.These five families were phenotyped for 1 year and their phenotypes were compared to the predicted breeding values.Accuracy of genomic prediction across the 10 traits reached a maximum value of 0.5 and had a median value of 0.19.The accuracies were strongly affected by the phenotypic distribution and heritability of traits.In the largest family,significant selection response was observed for traits with high heritability and symmetric phenotypic distribution.Traits that showed non-significant response often had reduced and skewed phenotypic variation or low heritability.Among the five application families the accuracies were uncorrelated to the degree of relatedness to the training population.The results underline the potential of genomic prediction to accelerate breeding progress in outbred fruit tree crops that still need to overcome long generation intervals and extensive phenotyping costs.Hélène Muranty Michela Troggio Inès Ben Sadok Mehdi Al Rifaï Annemarie Auwerkerken Elisa Banchi Riccardo Velasco Piergiorgio Stevanato W.Eric van de Weg Mario Di Guardo Satish Kumar François Laurens Marco C.A.M.Bink 2015Horticulture Research2015,2,1:14
8健康成人动脉粥样硬化斑块易感性和血栓形成的生物标志物变化与极端空气污染水平相关:北京AIRCHD研究显示文摘空气污染与心血管事件恶化的病理生理机制尚不完全清楚。该文探讨环境空气污染是否可以触发易损斑块.通过全身炎症途径促进血栓形成。方法:在北京AIRCHD研究中.2014-2016年间对73名健康成年人[年龄(23.3±5.4)岁]进行了随访。研究者使用线性混合效应模型评估了空气污染物与动脉粥样硬化斑块易损性、血栓形成和炎症相关生物标志物之间的关系,并使用中介效应分析(mediation analyses)探讨涉及的生物学途径。通过受试者工作特征(receiver operating characteristic,ROC)曲线分析评估每种生物标记物预测环境空气污染暴露的能力。刘青 叶鹏 Xu H Wang T Liu S Brook RD Feng B Zhao Q Song X Yi T Chen J Zhang Y Wang Y Zheng L Rajagopalan S Li J Huang W 2019中华高血压杂志2019,27,4:13
9Post-transcriptional regulation of vascular endothelial growth factor: Implications for tumor angiogenesis显示文摘脉管的内皮生长因素(VEGF ) 是一个有势力为批评的分泌 mitogen 生理并且肿瘤血管生成。VEGF 的规定发生在几个层次,包括抄写, mRNA 稳定,翻译,和各种各样的 isoforms 的微分细胞的本地化。在我们 VEGF 的 post-transcriptional 规定的理解的最近的进展在 VEGF mRNA 的 5'UTR 包括内部 ribosomal 入口地点的稳定的 mRNA 绑定蛋白质,投,和发现的鉴定。Monoclonal anti-VEGF 抗体最近在人为使用被同意,但是为高全身的剂量受不了需要。RNA 干扰(RNAi ) 技术正在被使用在试管内并且在有有希望的结果的动物模型。这里,我们在 VEGF 的 post-transcriptional 规定上考察文学并且在为治疗学的利益指向这些机制描述最近的进步。Peter S Yoo Abby L Mulkeen Charles H Cha 2006World Journal of Gastroenterology2006,12,31:11
10Polymorphisms of MTHFD,plasma homocysteine levels, and risk of gastric cancer in ahigh-risk Chinese population显示文摘Purpose:Accumulative evidence suggests that folate has a protective effect on gastric cancer. The methylenetetrahyd-rofolate dlehydrogenase(MTHFD) plays an important role in folate and homocysteine metabolisms, and polymorphisms of MTHFD may result in disturbance of the folate-mediated homocysteine pathway. The aim of this study is to test the hypothesis that genetic variants of MTHFD and plasma homocysteine levels are associated with risk of gastric cancer and modulated by genotypes of methylenetetrahydrofolate reductase(MTHFR). Experimental Design: We genotyped G1958A and T401C in MTHFD and C677T in MTHFR and detected total plasma homocysteine(tHcy) levels in a case-control study of 589 gastric cancer cases and 635 cancer-free controls in a high-risk Chinese population. Results:The variant genotypes of MTHFD 1958AA and 401CC were associated with a significantly increased risk of gastric canceradjusted odds ratio(OR), 2.05; 95% confidence interval(95% CI),1.34-3.13 for 1958AA; adjusted OR,1.43; 95% CI,1.14-1.80 for 401CC compared with 1958GG/GA and 401TT/TC genotypes, respectively. Both of the effects were more evident in the subjects carrying MTHFR 677CT/TT genotypes. The average tHcy level was significantly higher in gastric cancer cases than in controls(P < 0.01), and the upper quartile of tHcy (> 13.6 mu mol/L) was associated with an 82% significantly increased risk of gastric cancer, compared with the lowest quartile of tHcy(<= 8.0 pmol/L;adjusted OR,1.82; 95% CI,1.20-2.75). Conclusions:The strong associations between MTHFD variants and the plasma tHcy levels and gastric cancer risk suggest, for the first time, a possible gene-environment interaction between genetic variants of folate-metabolizing genes and high tHcy levels in gastric carcinogenesis.Wang, L. N Ke, Q Chen, W. S Wang, J. M Tan, Y. F Zhou, Y Hua, Z. L Ding, W. L Niu, J. Y Shen, J Zhang, Z. F Wang, X. R Xu, Y. H Shen, H. B Yi Xing 2007南京医科大学学报(自然科学版)2007,27,7:10
11油砂沥青改质产品中甲苯不溶物的表征显示文摘油砂沥青及其衍生产品中含有悬浮的甲苯不溶物如粘土和碳质固体颗粒,会导致后续加工过程中的结垢、催化剂失活和床层堵塞。笔者从油砂沥青衍生产品中分离出甲苯不溶物并进行了分析表征。研究发现,油砂沥青渣油中的甲苯不溶物主要是超细的硅铝酸盐粘土颗粒,结合了部分干酪根成分;焦化渣油和焦化瓦斯油储罐中沉积的甲苯不溶物类似焦炭;焦化瓦斯油中的甲苯不溶物主要是碳质有机物颗粒,但氮、氧含量相对丰富,并含少量矿物质和粘土颗粒,含氮的杂环化合物如吡咯类物质的存在可能是导致焦化瓦斯油中甲苯不溶物生成的主要因素。许志明 王宗贤 KOTLYAR L S CHUNG K H 2004石油学报(石油加工)2004,20,1:10
12Associations of sense of coherence with psychological distress and quality of life in inflammatory bowel disease显示文摘AIM:To investigate the relationship between sense of coherence,psychological distress and health related quality of life in inflammatory bowel disease(IBD).METHODS:This cross-sectional study enrolled a consecutive sample of 147 IBD(aged 45.1 ± 14.1 years; 57.1% female) patients recruited from a tertiary gastroenterology service.Sixty-four participants met diagnostic criteria for Crohn's disease,while eightythree patients had ulcerative colitis.Socio-demographic data(education,age,race,gender,gross monthly income and marital status),disease-related variables(illness activity,relapse rate in past 2 years,history of surgery and time since diagnosis),sense of coherence(Antonovsky's SOC scale),psychological distress symptoms(Hospital Anxiety and Depression Scale) and health-related quality of life(HRQo L; WHOQOLBref) were assessed.Hierarchical multiple regression analyses were performed to identify factors that are independently associated with psychological distress and HRQo L in patients with IBD and to provide indications for possible moderating or mediating effects.In addition,formal moderation and mediation analyses(Sobel tests) were performed to confirm potential moderators/mediators of the relationship between SOC,psychological distress symptoms and HRQoL.RESULTS:Lower SOC scores(std beta=-0.504; P < 0.001),female gender(std beta = 0.176; P = 0.021) and White race(std beta = 0.164; P = 0.033) were independently associated with higher levels of depressive symptoms,while lower levels of SOC(std beta =-0.438; P < 0.001) and higher relapse rate(std beta = 0.161; P = 0.033) were independently associated with more severe anxiety symptoms.A significant interaction between time since diagnosis and SOC was found with regard to the severity of depressive or anxiety symptoms,as the interaction term(time since diagnosis X SOC) had beta coefficients of-0.191(P = 0.009) and-0.172(P = 0.026),respectively.Lower levels of anxiety symptoms(std beta =-0.369; P < 0.001),higher levels of SOC(std beta = 0.231; P = 0.016) and non-White race(std beta =-0.229; P = 0.006),i.e.,mixed-race,which represented the reference category,were independently associated with higher levels of overall HRQoL.Anxiety symptoms were the most potent independent correlate of most aspects of HRQoL.In addition,anxiety mediated the association between SOC and satisfaction with health,as well as its relationship with physical,mental,and social relations HRQo L.Depressive symptoms also mediated the association between SOC and mental HRQoL.CONCLUSION:Our data indicated that SOC is an important construct,as it influences psychological distress and has significant albeit indirect effects on several HRQoL domains in IBD.Thiago H Freitas Elias Andreoulakis Gilberto S Alves Hesley LL Miranda Lúcia LBC Braga Thomas Hyphantis André F Carvalho 2015World Journal of Gastroenterology2015,21,21:10
13柑桔黄龙病的鉴定和柯赫氏定理(英文)显示文摘黄龙(梢)病被认为是世界柑橘生产上的毁灭性病害已超过一个世纪,但该病害的病原学至今还没有清晰地建立起来。根据16S rRNA基因序列分析,一组被称为'Candidatus Liberibacter species'的难培养细菌被认为与黄龙病相关。然而,要确定'Ca.Liberibacter spp.'是黄龙病病原的柯赫氏定理并没有真正完成。令我们担忧的是,近年来有些文献频频指出'Ca.Liberibacter spp.'是黄龙病的病原,其实该细菌与柑橘寄主的直接病理反应还没有完全确定。我们建议,在黄龙病病原学清楚之前,文献报道在这方面需要有准确的阐述。Chen J Deng X Civerolo E L Lee R F Jones J B Zhou C Hartung J S Manjunath K L Brlansky R H 2011植物病理学报2011,41,2:10
14低雾化低挥发性汽车用新型聚氨酯泡沫塑料助剂显示文摘康普顿公司开发了一系列适用于消除或减少汽车内饰件中胺扩散或雾化的添加剂 ,其中包括快速、有效的生产用零扩散催化剂和低雾化表面活性剂。该系列添加剂能大大降低泡沫制品中的胺扩散 ,与异氰酸酯和多元醇原料能组成最佳组合 ,以保持良好的泡沫物理性能。Muller L Ghobary H E Derderian E J Robinson K K Chong S M 2003聚氨酯工业2003,18,3:9
15Three-dimensional structural changes in living hippocampal neurons imaged using magnetic AC mode atomic force microscopy.显示文摘Yunxu S Danying L Yanfang R Dong H Wanyun M 2006中国生物学文摘2006,20,9:7
16Recurrence of inflammatory pseudotumor in the distal bile duct: Lessons learned from a single case and reported cases显示文摘煽动性的 myofibroblastic 肿瘤(IMT ) 或煽动性的假肿瘤(IP ) 广泛地在文学被讨论了。他们通常在肺和上面的呼吸道被发现。然而,包含 biliopancreatic 区域的案例报导在最近的年增加了。限制到胰腺的头或远侧的胆汁管的这些损害的 Immunohistochemical 学习似乎与那些在称为自体免疫的胰腺炎的一个新实体观察了兼容,但是通常强烈的纤维变性反应(带状配列) 支配生产一个团。当这个条件限于胰腺的头时,胆总管可能被煽动性的过程包含,黄疸可以经常发生类似于胰的腺癌。我们以前报导了从与是一个极其稀罕的实体的自体免疫的胰腺炎联系的胆汁管产生的 IMT 的一个案例。在 Kaush-Whipple 切除术以后的四年,平淡的后续上的放射学的检查揭示了一个肿瘤团,建议本地复发。指导超声的 FNA 证实了我们的可疑诊断。作为其它,这个现在的案例建议坚持的后续是必要的以便在这个特定的地点阻止不可逆的肝损坏。EM López-Tomassetti Fernández H Díaz Luis A Martín Malagón I Arteaga González A Carrillo Pallarés 2006World Journal of Gastroenterology2006,12,24:7
17Mutation analysis of autosomal dominant polycystic kidney disease genes in Han Chinese显示文摘Zhang S Mei C Zhang D Dai B Tang B Sun T Zhao H Zhou Y Li L Wu Y Wang W Shen X Song J 2005第二军医大学学报2005,26,8:6
18茶叶摄入与中国成年人高密度脂蛋白胆固醇浓度纵向变化的关系显示文摘茶叶摄入与高密度脂蛋白胆固醇(high-density lipoprotein cholesterol,HDL-C)浓度的年龄相关变化之间的关系仍不清楚。该研究目的是探索茶摄入量与HDL-C浓度纵向变化之间的关系。研究人员通过调查问卷评估基线(2006年)的茶叶消费量,并在2006、2008、2010和2012年测量了未患有心血管病或癌症.刘莉 叶鹏 Huang S Li J Wu Y Ranjbar S Xing A Zhao H Wang Y Shearer GC Bao L Lichtenstein AH Wu S Gao X 2018中华高血压杂志2018,26,8:5
19健康领域的文化能力显示文摘1背景 尽管人类对其他社会的兴趣纵贯历史的各个阶段,但是检验不同文化概念对人类健康实践的影响从20世纪才开始,当时是伴随着长期的人类学田野调查产生的,这些田野调查揭露了不同文化之间相关卫生实践的多样性、复杂性和连续性。Napier A D Ancarno C Butler B Calabrese j Chater A Chatterjee H Guesnet F Home R Jacyna S Jadhav S Macdonald A Neuendorf U Parkhurst A Reynolds R Scambler G Shamdasani S Smith S Z Stougaard-Nielsen J Thomson L Tyler N Volkmann A M Walker T Watson J Williams AC Willott C Wilson J Woolf K 2016中国卫生政策研究2016,9,2:5
20稻田CH_4排放及控制技术的研究(英文)显示文摘为了探索北方稻田水管理、施肥和水稻品种对稻田甲烷排放的影响 ,于 1995年至 1998年应用全自动甲烷采样 -测定系统 ,测定了水稻田甲烷排放通量。实验探明 :北方稻田甲烷排放通量为 4~364mg/m2 .d,平均值为 82 mg/m2 .d;稻田甲烷的季节排放只有一个高峰 ,发生在水稻分蘖期 ,该期的甲烷排放量占年排放总量的 85 %以上 ,水稻生长中、后期的稻田甲烷非常有限。水管理对稻田甲烷的生成、排放有显著的影响 ,稻田采用间歇灌溉代替常规灌溉和淹灌 ,可减排稻田甲烷 4 6%~ 5 9% ;稻田施用有机肥 ,甲烷排放量则剧增。但在同等有机碳含量情况下 ,不同有机肥的产甲烷潜势存在明显差异 ,猪粪和稻草较高 ,堆肥和牛粪较低 ,稻田施用堆肥和牛粪 ,可比施用猪粪和稻草的稻田减排稻田甲烷 72 %~ 90 % ;试验中选用的水稻品种 ,以中作 93的甲烷排放效率为最低 ,其甲烷排放通量比杂交稻京优和高秆品种中花 94 - 10 17减少 5 0 %~ 5 5 %。实验揭示 ,水稻分蘖期是控制北方稻田甲烷排放的关键时期 。王增远 徐雨昌 李震 过益先 R Wassmann H U Neue R S Lantin L V Buendia 2001作物学报2001,27,6:5
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