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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
2Expanding etiology of progressive familial intrahepatic cholestasis显示文摘BACKGROUND Progressive familial intrahepatic cholestasis(PFIC)refers to a disparate group of autosomal recessive disorders that are linked by the inability to appropriately form and excrete bile from hepatocytes,resulting in a hepatocellular form of cholestasis.While the diagnosis of such disorders had historically been based on pattern recognition of unremitting cholestasis without other identified molecular or anatomic cause,recent scientific advancements have uncovered multiple specific responsible proteins.The variety of identified defects has resulted in an ever-broadening phenotypic spectrum,ranging from traditional benign recurrent jaundice to progressive cholestasis and end-stage liver disease.AIM To review current data on defects in bile acid homeostasis,explore the expanding knowledge base of genetic based diseases in this field,and report disease characteristics and management.METHODS We conducted a systemic review according to PRISMA guidelines.We performed a Medline/PubMed search in February-March 2019 for relevant articles relating to the understanding,diagnosis,and management of bile acid homeostasis with a focus on the family of diseases collectively known as PFIC.English only articles were accessed in full.The manual search included references of retrieved articles.We extracted data on disease characteristics,associations with other diseases,and treatment.Data was summarized and presented in text,figure,and table format.RESULTS Genetic-based liver disease resulting in the inability to properly form and secrete bile constitute an important cause of morbidity and mortality in children and increasingly in adults.A growing number of PFIC have been described based on an expanded understanding of biliary transport mechanism defects and the development of a common phenotype.CONCLUSION We present a summary of current advances made in a number of areas relevant to both the classically described FIC1(ATP8B1),BSEP(ABCB11),and MDR3(ABCB4)transporter deficiencies,as well as more recently described gene mutations--TJP2(TJP2),FXR(NR1H4),MYO5B(MYO5B),and others which expand the etiology and understanding of PFIC-related cholestatic diseases and bile transport.Sarah AF Henkel Judy H Squires Mary Ayers Armando Ganoza Patrick Mckiernan James E Squires 2019World Journal of Hepatology2019,11,5:13
3在结肠和直肠的癌症的淋巴节点收获: 当前的考虑显示文摘 The prognostic significance of identifying lymph node(LN) metastases following surgical resection for colon and rectal cancer is well recognized and is reflected in accurate staging of the disease.An established body of evidence exists,demonstrating an association between a higher total LN count and improved survival,particularly for node negative colon cancer.In node positive disease,however,the lymph node ratios may represent a better prognostic indicator,although the impact of this on clinical treatment has yet to be universally established.By extension,strategies to increase surgical node harvest and/or laboratory methods to increase LN yield seem logical and might improve cancer staging.However,debate prevails as to whether or not these extrapolations are clinically relevant,particularly when very high LN counts are sought.Current guidelines recommend a minimum of 12 nodes harvested as the standard of care,yet the evidence for such is questionable as it is unclear whether an increasing the LN count results in improved survival.Findings from modern treatments,including down-staging in rectal cancer using pre-operative chemoradiotherapy,paradoxically suggest that lower LN count,or indeed complete absence of LNs,are associated with improved survival;implying that using a specific number of LNs harvested as a measure of surgical quality is not always appropriate.The pursuit of a sufficient LN harvest represents good clinical practice;however,recent evidence shows that the exhaustive searching for very high LN yields may be unnecessary and has little in? uence on modern approaches to treatment.James R McDonald Andrew G Renehan Sarah T O’Dwyer Najib Y Haboubi 2012World Journal of Gastrointestinal Surgery2012,4,1:8
4Nonalcoholic steatohepatitis severity is defined by a failure in compensatory antioxidant capacity in the setting of mitochondrial dysfunction显示文摘AIM To comprehensively evaluate mitochondrial(dys) function in preclinical models of nonalcoholic steatohepatitis(NASH).METHODS We utilized two readily available mouse models of nonalcoholic fatty liver disease(NAFLD) with or without progressive fibrosis: Lep^(ob)/Lep^(ob)(ob/ob) and FATZO mice on high trans-fat, high fructose and high cholesterol(AMLN) diet. Presence of NASH was assessed using immunohistochemical and pathological techniques, and gene expression profiling. Morphological features of mitochondria were assessed via transmission electron microscopy and immunofluorescence, and function was assessed by measuring oxidative capacity in primary hepatocytes, and respiratory control and proton leak in isolated mitochondria. Oxidative stress was measured by assessing activity and/or expression levels of Nrf1, Sod1, Sod2, catalase and 8-OHdG. RESULTS When challenged with AMLN diet for 12 wk, ob/ob and FATZO mice developed steatohepatitis in the presence of obesity and hyperinsulinemia. NASH development was associated with hepatic mitochondrial abnormalities, similar to those previously observed in humans, including mitochondrial accumulation and increased proton leak. AMLN diet also resulted in increased numbers of fragmented mitochondria in both strains of mice. Despite similar mitochondrial phenotypes, we found that ob/ob mice developed more advanced hepatic fibrosis. Activity of superoxide dismutase(SOD) was increased in ob/ob AMLN mice, whereas FATZO mice displayed increased catalase activity, irrespective of diet. Furthermore, 8-OHd G, a marker of oxidative DNA damage, was significantly increased in ob/ob AMLN mice compared to FATZO AMLN mice. Therefore, antioxidant capacity reflected as the ratio of catalase:SOD activity was similar between FATZO and C57 BL6 J control mice, but significantly perturbed in ob/ob mice. CONCLUSION Oxidative stress, and/or the capacity to compensate for increased oxidative stress, in the setting of mitochondrial dysfunction, is a key factor for development of hepatic injury and fibrosis in these mouse models.Michelle L Boland Stephanie Oldham Brandon B Boland Sarah Will Jean-Martin Lapointe Silvia Guionaud Christopher J Rhodes James L Trevaskis 2018World Journal of Gastroenterology2018,24,16:7
5MicroRNA-31 functions as an oncogenic microRNA in mouse and human lung cancer cells by repressing specific tumor suppressors显示文摘Liu Xi Sempere Lorenzo F Ouyang Haoxu Memoli Vincent A Andrew Angeline S Luo Yue Demidenko Eugene Korc Murray Shi Wei Preis Meir Dragnev Konstantin H Li Hua DiRenzo James Bak Mads Freemantle Sarah J Kauppinen Sakari Dmitrovsky Ethan 2010Journal of Clinical Investigation2010,,4:3
6The GENCODE v7 catalog of human long noncoding RNAs: Analysis of their gene structure, evolution, and expression显示文摘Thomas Derrien Rory Johnson Giovanni Bussotti Andrea Tanzer Sarah Djebali Hagen Tilgner Gregory Guernec David Martin Angelika Merkel David G. Knowles Julien Lagarde Lavanya Veeravalli Xiaoan Ruan Yijun Ruan Timo Lassmann Piero Carninci James B. Brown Leon 2012Genome Research2012,,9:3
7Meeting report:a hard look at the state of enamel research显示文摘The Encouraging Novel Amelogenesis Models and Ex vivo cell Lines(ENAMEL) Development workshop was held on 23 June 2017 at the Bethesda headquarters of the National Institute of Dental and Craniofacial Research(NIDCR). Discussion topics included model organisms, stem cells/cell lines, and tissues/3 D cell culture/organoids. Scientists from a number of disciplines,representing institutions from across the United States, gathered to discuss advances in our understanding of enamel, as well as future directions for the field.ophir d klein olivier duverger wendy shaw rodrigo s lacruz derk joester janet moradian-oldak megan k pugach j timothy wright sarah e millar ashok b kulkarni john d bartlett thomas gh diekwisch pamela den besten james p simmer 2017International Journal of Oral Science2017,9,4:3
8儿童扩张型心肌病的发病率、病因及预后显示文摘背景:扩张型心肌病(dilated cardiomyopathy,DCM)是儿童心肌病最常见的类型,也是小儿心脏移植最常见的原因。但是,目前尚不清楚儿童DCM的流行病学特点和临床过程。 目的:详细描述儿童DCM的发病率、病因、预后及相关危险因素。 设计及地点:本项以人群为基础的前瞻性纵向队列研究入选1996年1月至2003年2月在89个儿科心脏中心诊断为DCM的儿童以及1990年1月至1995年12月在北美大型三级治疗中心诊断的患儿。 参试者:共入选1426例来自美国和加拿大的18岁以下DCM患儿。通过严格的超声心动图和/或病理学标准来诊断原发性DCM。因内分泌、免疫、药物中毒及其他原因患病者除外。 主要观测指标:每年每10万儿童的发病率、死亡率和心脏移植率。 结果:18岁以下儿童DCM每年的总发病率为0.57/10万,男孩的年发病率高于女孩(分别为0.66/10万和0.47/10万;P〈0.001),黑人的年发病率高于白人(分别为0.98/10万和0.46/10万;P〈0.001),婴儿(〈1岁)的年发病率高于儿童(分别为4.40/10万和0.34/10万;P〈0.001)。绝大部分属特发性,最常见的病因为心肌炎(46%)和神经肌肉性疾病(26%)。1年和5年死亡/移植率分别为31%和46%。死亡/移植的独立危险因素包括患儿诊断DCM时年龄较大、伴有充血性心力衰竭、左室收缩期Z评分较低以及DCM的病因(P均〈0.001)。 结论:儿童DCM有其多样性。患儿预后主要取决于病因、年龄和心力衰竭状况。人种、性别和年龄对发病率有一定影响。大部分患儿无明确病因,限制了特异性治疗。Jeffrey A. Towbin April M. Lowe Steven D. Colan Lynn A. Sleeper E. John Orav Sarah Clunie Jane Messere Gerald F. Cox Paul R. Lurie Daphne Hsu Charles Canter James D. Wilkinson Steven E. Lipshultz 康俊萍(译) 马长生(校) 2007美国医学会杂志(中文版)2007,26,4:3
9Hospital readmissions in decompensated cirrhotics: Factors pointing toward a prevention strategy显示文摘AIM To reduce readmissions and improve patient outcomes in cirrhotic patients through better understanding of readmission predictors.METHODS We performed a single-center retrospective study of patients admitted with decompensated cirrhosis from January 1, 2011 to December 31, 2013(n = 222). Primary outcomes were time to first readmission and 30-d readmission rate due to complications of cirrhosis. Clinical and demographic data were collected to help describe predictors of readmission, along with care coordination measures such as post-discharge status and outpatient follow-up. Univariate and multivariateanalyses were performed to describe variables associated with readmission.RESULTS One hundred thirty-two patients(59.4%) were readmitted at least once during the study period. Median time to first and second readmissions were 54 and 93 d, respectively. Thirty and 90-d readmission rates were 20.7 and 30.1 percent, respectively. Predictors of 30-d readmission included education level, hepatic encephalopathy at index, ALT more than upper normal limit and Medicare coverage. There were no statistically significant differences in readmission rates when stratified by discharge disposition, outpatient follow-up provider or time to first outpatient visit.CONCLUSION Readmissions are challenging aspect of care for cirrhotic patients and risk continues beyond 30 d. More initiatives are needed to develop enhanced, longitudinal post-discharge systems.Siamak M Seraj Emily J Campbell Sarah K Argyropoulos Kara Wegermann Raymond T Chung James M Richter 2017World Journal of Gastroenterology2017,23,37:3
10发生于乳房假体置入女性的间变性大细胞淋巴瘤:173例临床分析显示文摘背景与目的1962年,首例硅胶乳房假体被成功置人体内。1997年,报道了首例与硅胶乳房假体相关的间变性大细胞淋巴瘤(ALCL)。笔者回顾了已发表的37篇文献报道,共79例患者,并收集了94例未报道的病例。方法复习全世界文献。向作者和主治医师寻求文献或病例中缺少的临床和实验数据。由于需要收集的病例信息很多,有时需要在多个地点获得完整的病例信息。因为不是所有被询问的作者和主治医师均提供了信息,所以造成了数据的不完整。结果ALCL病变首先在假体周围血清肿内发现,其肿块附着于包膜,肿块可侵及皮肤,可在区域淋巴结发生,也可在乳房矫形手术中被发现。临床特点呈现多样化,有的仅表现为细胞学阳性结果,肿块自发消退;有的表现为转移性、难治性肿瘤,甚至死亡。其与假体填充物(盐水或硅胶)和置入假体目的(隆乳或乳房再造)没有相关性。在假体信息完整的病例中,患者体内至少置入过1个毛面假体;18例肿块扩散至包膜外,其中9例是致命的。主要的组织化学标记物是cD-30和Alk-1;其他标记物出现频率较低。乳房假体置入女性发生ALCL的风险评估范围是1/500000—1/3000000。结论与乳房假体相关的ALCL是一种新的淋巴瘤,其起源于瘢痕,具有部位和材料特异性,且临床表现呈现多样化,由多因素引起。Garry S. Brody Dennis Deapen Clive R. Taylor Lauren Pinter-Brown Sarah Rose House-Lightner James S. Andersen Grant Carlson Melissa G. Lechner Alan L. Epstein 朱利娜 高景恒 张晨 袁继龙 2015中国美容整形外科杂志2015,26,12:2
11Tomato fruit as a model for tissue-specific gene silencing in crop plants显示文摘Use of CRISPR-Cas9(Clustered Regularly Interspaced Short Palindromic Repeats(CRISPR)-CRISPR-associated 9)-mediated genome editing has proliferated for use in numerous plant species to modify gene function and expression,usually in the context of either transient or stably inherited genetic alternations.While extremely useful in many applications,modification of some loci yields outcomes detrimental to further experimental evaluation or viability of the target organism.Expression of Cas9 under a promoter conferring gene knockouts in a tissue-specific subset of genomes has been demonstrated in insect and animal models,and recently in Arabidopsis.We developed an in planta GFP(green fluorescent protein)assay system to demonstrate fruit-specific gene editing in tomato using a phosphoenolpyruvate carboxylase 2 gene promoter.We then targeted a SET-domain containing polycomb protein,SlEZ2,previously shown to yield pleiotropic phenotypes when targeted via ^(35)S-driven RNA interference and we were able to characterize fruit phenotypes absent additional developmental perturbations.Tissue-specific gene editing will have applications in assessing function of essential genes otherwise difficult to study via germline modifications and will provide routes to edited genomes in tissues that could not otherwise be recovered when their germline modification perturbs their normal development.Ari Feder Sarah Jensen Anquan Wang Lance Courtney Lesley Middleton Joyce Van Eck Yongsheng Liu James J.Giovannoni 2020Horticulture Research2020,7,1:2
12Laparoscopic Distal Pancreatectomy Offers Shorter Hospital Stays with Fewer Complications显示文摘Joseph DiNorcia Beth A. Schrope Minna K. Lee Patrick L. Reavey Sarah J. Rosen James A. Lee John A. Chabot John D. Allendorf 2010Journal of Gastrointestinal Surgery2010,,11:2
13Impact of postoperative intravenous fluid administration on complications following elective hepato-pancreato-biliary surgery显示文摘Background: The impact of perioperative intravenous fluid administration on surgical outcomes has been documented in literature, but not specifically studied in the context of hepato-pancreato-biliary(HPB) surgery. This study aimed to investigate the impact of postoperative intravenous fluid administration on intensive care unit(ICU), in this subgroup of patients. Methods: A single-center retrospective cohort of 241 HPB patients was assessed, focusing on intravenous fluid administration in ICU, during the first 24 h. Intravenous fluid variables were compared to hospital stay and postoperative complications. Data were assessed using Spearman's correlation test for bivariate correlations and logistic regression for multivariate analysis. Results: The median volume of intravenous fluid administered in the first 24 h postoperatively was 4380 mL, of which 2200 mL was crystalloid, 1500 mL colloid and 680 mL 'other' fluid. Patients with one or more complications had a higher median total intravenous fluid input(4790 vs. 4300 mL), higher colloid volume(20 0 0 vs. 150 0 mL), lower urine output(1595 vs. 1900 mL) and greater overall fluid balance( + 3040 vs. + 2553 mL) than those without complications. There were correlations between total intravenous fluid volume administered( r = 0.278, P < 0.001), intravenous colloid input( r = 0.278, P < 0.001), urine output( r =-0.295, P < 0.001), positive fluid balance( r = 0.344, P < 0.001) and length of hospital stay. Logistic regression model was constructed to predict the occurrence of one or more complications; total intravenous fluid volume and overall fluid balance were both independent significant predictors(OR = 2.463, P = 0.007; OR = 1.001, P = 0.011; respectively). Conclusions: Administration of high volumes of intravenous fluids in the first 24 hours post-HPB surgery, along with higher positive fluid balance is associated with a higher rate of complications and longer hospital stay. Moreover, lower urine output is associated with longer hospital stay. Whether these are the cause of complications or the result of them remains unclear.Daniel Martin Panagis M.Lykoudis Gabriel Jones David Highton Alan Shaw Sarah James Qiang Wei Giuseppe Fusai 2018Hepatobiliary & Pancreatic Diseases International2018,17,5:2
14Arsenic variability and groundwater age in three water supply wells in southeast New Hampshire显示文摘Three wells in New Hampshire were sampled bimonthly over three years to evaluate the temporal variability of arsenic concentrations and groundwater age.All samples had measurable concentrations of arsenic throughout the entire sampling period and concentrations in individual wells had a mean variation of more than 7 μg/L.The time series data from this sampling effort showed that arsenic concentrations ranged from a median of 4 mg/L in a glacial aquifer well (SGW-65) to medians of 19 μg/L and 37 μg/L in wells (SGW-93 and KFW-87) screened in the bedrock aquifer,respectively.These high arsenic concentrations were associated with the consistently high pH (median ≥- 8) and low dissolved oxygen (median <0.1 mg/L) in the bedrock aquifer wells,which is typical of fractured crystalline bedrock aquifers in New Hampshire.Groundwater from the glacial aquifer often has high dissolved oxygen,but in this case was consistently low.The pH also is generally acidic in the glacial aquifer but in this case was slightly alkaline (median =7.5).Also,sorption sites may be more abundant in glacial aquifer deposits than in fractured bedrock which may contribute to lower arsenic concentrations.Mean groundwater ages were less than 50 years old in all three wells and correlated with conservative tracer concentrations,such as chloride;however,mean age was not directly correlated with arsenic concentrations.Arsenic concentrations at KFW-87 did correlate with water levels,in addition,there was a seasonal pattern,which suggests that either the timing of or multiple sampling efforts may be important to define the full range of arsenic concentrations in domestic bedrock wells.Since geochemically reduced conditions and alkaline pHs are common to both bedrock and glacial aquifer wells in this study,groundwater age correlates less strongly with arsenic concentrations than geochemical conditions.There also is evidence of direct hydraulic connection between the glacial and bedrock aquifers,which can influence arsenic concentrations.Correlations between arsenic concentrations and the age of the old fraction of water in SGW-65 and the age of the young fraction of water in SGW-93 suggest that water in the two aquifers may be mixing or at least some of the deeper,older water captured by the glacial aquifer well may be from a similar source as the shallow young groundwater from the bedrock aquifer.The contrast in arsenic concentrations in the two aquifers may be because of increased adsorption capacity of glacio-fluvial sediments,which can limit contaminants more than fractured rock.In addition,this study illustrates that long residence times are not necessary to achieve more geochemically evolved conditions such as high pH and reduced conditions as is typically found with older water in other regions.Joseph P.Levitt James R.Degnan Sarah M.Flanagan Bryant C.Jurgens 2019Geoscience Frontiers2019,10,5:2
15The I nhibitor of wax 1 locus ( I w1 ) prevents formation of β‐ and OH ‐β‐diketones in wheat cuticular waxes and maps to a sub‐c M interval on chromosome arm 2 BS显示文摘Nikolai M. Adamski Maxwell S. Bush James Simmonds Adrian S. Turner Sarah G. Mugford Alan Jones Kim Findlay Nikolai Pedentchouk Penny Wettstein‐Knowles Cristobal Uauy 2013Plant J2013,,6:2
16Management and Outcome of Permanent Pacemaker and Implantable Cardioverter-Defibrillator Infections显示文摘Muhammad R. Sohail Daniel Z. Uslan Akbar H. Khan Paul A. Friedman David L. Hayes Walter R. Wilson James M. Steckelberg Sarah Stoner Larry M. Baddour 2007Journal of the American College of Cardiology2007,,18:2
17Cognitive function in 18-month-old term infants of the DIAMOND study: A randomized, controlled clinical trial with multiple dietary levels of docosahexaenoic acid显示文摘James R. Drover Dennis R. Hoffman Yolanda S. Casta?eda Sarah E. Morale Sharon Garfield Dianna H. Wheaton Eileen E. Birch 2011Early Human Development2011,,3:1
18A computer-assisted technique for 24-hour esophageal monitoring显示文摘Rebecca B. Troxell PA-C Sarah R. Kohn BA Dr. James E. Gray MD Richard W. Welch MD Edward D. Harloe BS Raj K. Goyal MD 1982Digestive Diseases and Sciences1982,,12:1
19When Outgroups Fail; Phylogenomics of Rooting the Emerging Pathogen, Coxiella burnetii显示文摘Talima Pearson Heidie M. Hornstra Jason W. Sahl Sarah Schaack James M. Schupp Stephen M. Beckstrom-Sternberg Matthew W. O’Neill Rachael A. Priestley Mia D. Champion James S. Beckstrom-Sternberg Gilbert J. Kersh James E. Samuel Robert F. Massung Paul Keim 2013Systematic Biology2013,,5:1
20Ryanodine receptors contribute to bile acid- induced p:hologieal calcium signaling and pancreatitis in mice 显示文摘Sarah Navina Chathur Acharya James P 2011Science Translational Medicine2011,3,:1
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