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1Oxidative stress and male reproductive health显示文摘有缺点的精子功能的主要原因之一是氧化应力,它不仅破坏精子 DNA 的正直而且在精子血浆膜由于蛋白质和类脂化合物的并行的损坏限制这些房间的使肥沃的潜力。如此的氧化压力的起源看起来包含精子线粒体,它有一个趋势作为一篇序言产生 superoxide 阴离子的高水平到进入内在的 apoptotic 串联。不幸地,这些房间有很小的能力因为他们仅仅在基础切除修理(BER ) 拥有第一酶,对如此的攻击作出回应小径, 8-oxoguanine glycosylase 1 (OGG1 ) 。后者成功地创造一个 abasic 地点,而是精子因为他们缺乏下游的蛋白质,不能进一步处理氧化损害(APE1, XRCC1 ) 需要完成修理过程。在第一个有丝分裂的部门的 S 阶段的开始以前继续 BER 小径是卵母细胞的责任。如果一个错误被卵母细胞在开发的这个阶段犯,一个变化将被创造那将在身体在每个房间被代表。如此的机制可以在在作为年龄的后果在他们的细菌线承受了氧化应力的男性的后代观察的童年癌症和另外的疾病解释增加,环境或生活方式因素。在男不孕病人的精子的氧化 DNA 损坏的高流行可以为在 vitro 构思的孩子的健康有含意并且在细菌线为对免费激进的产生的起源的当前的研究担任一位司机。Robert J Aitken Tegan B Smith Matthew S Jobling Mark A Baker Geoffry N De Iuliis 2014Asian Journal of Andrology2014,16,1:48
2Current state of laparoscopic parastomal hernia repair:A meta-analysis显示文摘AIM:To evaluate the efficacy and safety of the laparoscopic approaches for parastomal hernia repair reported in the literature.METHODS:A systematic review of PubMed and MEDLINE databases was conducted using various combination of the following keywords:stoma repair,laparoscopic,parastomal,and hernia.Case reports,studies with less than 5 patients,and articles not written in English were excluded.Eligible studies were further scrutinized with the 2011 levels of evidence from the Oxford Centre for Evidence-Based Medicine.Two authors reviewed and analyzed each study.If there was any discrepancy between scores,the study in question was referred to another author.A meta-analysis was performed using both random and fixed-effect models.Publication bias was evaluated using Begg's funnel plot and Egger's regression test.The primary outcome analyzed was recurrence of parastomal hernia.Secondary outcomes were mesh infection,surgical site infection,obstruction requiring reoperation,death,and other complications.Studies were grouped by operative technique where indicated.Except for recurrence,most postoperative morbidities were reported for the overall cohort and not by approach so they were analyzed across approach.RESULTS:Fifteen articles with a total of 469 patients were deemed eligible for review.Most postoperative morbidities were reported for the overall cohort,and not by approach.The overall postoperative morbidity rate was 1.8%(95%CI:0.8-3.2),and there was no difference between techniques.The most common postoperative complication was surgical site infection,which was seen in 3.8%(95%CI:2.3-5.7).Infected mesh was observed in 1.7%(95%CI:0.7-3.1),and obstruction requiring reoperation also occurred in 1.7%(95%CI:0.7-3.0).Other complications such as ileus,pneumonia,or urinary tract infection were noted in16.6%(95%CI:11.9-22.1).Eighty-one recurrences were reported overall for a recurrence rate of 17.4%(95%CI:9.5-26.9).The recurrence rate was 10.2%(95%CI:3.9-19.0) for the modified laparoscopic Sugarbaker approach,whereas the recurrence rate was27.9%(95%CI:12.3-46.9) for the keyhole approach.There were no intraoperative mortalities reported and six mortalities during the postoperative course.CONCLUSION:Laparoscopic intraperitoneal mesh repair is safe and effective for treating parastomal hernia.A modified Sugarbaker approach appears to provide the best outcomes.Francis J DeAsis Brittany Lapin Matthew E Gitelis Michael B Ujiki 2015World Journal of Gastroenterology2015,21,28:34
3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
4Minimally invasive treatment of pancreatic necrosis显示文摘AIM: To systematically review these minimally invasive approaches to infected pancreatic necrosis. METHODS: We used the MEDLINE database to investigate studies between 1996 and 2010 with greater than 10 patients that examined these techniques. Using a combination of Boolean operators, reports were retrieved addressing percutaneous therapy (341 studies), endoscopic necrosectomy (574 studies), laparoscopic necrosectomy via a transperitoneal approach (148 studies), and retroperitoneal necrosectomy (194 studies). Only cohorts with at least 10 or more patients were included. Non-English papers, letters, animal studies, duplicate series and reviews without original data were excluded, leaving a total of 27 studies for analysis. RESULTS: Twenty-seven studies with 947 patients total were examined (eight studies on percutaneous approach; ten studies on endoscopic necrosectomy; two studies on laparoscopic necrosectomy via a transperitoneal approach; five studies on retroperitoneal necrosectomy; and two studies on a combined percutaneous-retroperitoneal approach). Success rate, complications, mortality, and number of procedures were outcomes that were included in the review. We found that most published reports were retrospective in nature, and thus, susceptible to selection and publication bias. Few reports examined these techniques in a comparative, prospective manner. CONCLUSION: Each minimally invasive approach though was found to be safe and feasible in multiple reports. With these new techniques, treatment of infected pancreatic necrosis remains a challenge. We advocate a multidisciplinary approach to this complex problem with treatment individualized to each patient.Brian Bello Jeffrey B Matthews 2012World Journal of Gastroenterology2012,18,46:17
5肌萎缩性侧索硬化蛋白激活小胶质细胞NLRP3炎性小体显示文摘小胶质细胞NLRP3炎性小体激活正在成为神经退行性变过程中神经炎症的关键因素。诸如β-淀粉样蛋白和α-突触核蛋白之类的致病性蛋白质聚集体触发小胶质NLRP3激活,从而导致半胱天冬酶-1激活和IL-1β的分泌。在小鼠肌萎缩性侧索硬化症(ALS)的SOD1G93A模型中,半胱天冬酶-1和IL-1β均促进疾病进展,提示小胶质NLRP3在该进程中发挥作用。然而先前的研究表明,SOD1G93A小鼠小胶质细胞不表达NLRP3,SOD1G93A蛋白在小胶质细胞中产生独立于NLRP3的IL-1β。本研究论证了使用Nlrp3-GFP基因敲入小鼠,在SOD1G93A小鼠中小胶质细胞表达NLRP3。本研究显示聚集和可溶性SOD1G93A均可激活小鼠原代小胶质细胞中的炎性小体,导致半胱天冬酶-1和IL-1β裂解,ASC斑点形成以及呈剂量和时间依赖性的IL-1β分泌。重要的是,SOD1G93A无法从缺乏Nlrp3的小胶质细胞或者用特异性NLRP3抑制剂MCC950预处理的小胶质细胞中诱导IL-1β分泌,从而证实NLRP3是介导SOD1诱导的小胶质细胞IL-1β分泌的关键炎症小体复合物。在TDP-43Q331K ALS小鼠模型中也观察到小胶质NLRP3上调,TDP-43野生型和突变蛋白亦可以NLRP3依赖性的方式激活小胶质炎性小体。从机制上讲,本研究确定了活性氧簇和ATP的生成是SOD1G93A介导的NLRP3激活所需的关键事件。总之,本研究的数据表明ALS小胶质细胞表达NLRP3,而病理ALS蛋白激活小胶质NLRP3炎性小体。因此,NLRP3抑制可能是阻止小胶质细胞神经炎症和ALS疾病进展的潜在治疗方法。Vandana Deora John D Lee Eduardo AAlbornoz Luke McAlary Cyril J Jagaraj Avril A B Robertson Julie D Atkin Matthew A Cooper Kate Schroder Justin J Yerbury Richard Gordon Trent MWoodruff 杜一星(编译) 2020神经损伤与功能重建2020,15,9:13
6Effect of music on patients undergoing outpatient colonoscopy显示文摘AIM: To evaluate the effect of relaxing music during colonoscopy under low-dose conscious sedation, on patient satisfaction, scope insertion time and procedure duration, medication doses, and the perceived adequacy of sedation and scope insertion difficulty on the part of the endoscopist. METHODS: One hundred and sixty-seven consecutive adult outpatients presenting for routine colonoscopy under low-dose conscious sedation were randomized to undergo their procedures either with music played during the procedure or no music played. RESULTS: There were no statistical differences between the two groups in terms of meperidine dose, midazolam dose, time to reach the cecum, total procedure time, endoscopist assessment of scope insertion difficulty, endoscopist assessment of adequacy of sedation, or the pain experience of the patients during their procedure. The music group did report significantly better overall procedure satisfaction as compared to the non music group on two of our three different scales. CONCLUSION: While music does not result in shortened procedure times, lower doses of sedative medications or perceived patient pain, the patients who have music playing during their procedures report modestly greater satisfaction with their procedures.Matthew L Bechtold Rodney A Perez Srinivas R Puli John B Marshall 2006World Journal of Gastroenterology2006,12,45:8
7Radiofrequency ablation for early oesophageal squamous neoplasia:Outcomes form United Kingdom registry显示文摘AIM:To report outcomes on patients undergoing radiofrequency ablation(RFA)for early oesophageal squamous neoplasia from a National Registry.METHODS:A Prospective cohort study from 8 tertiary referral centres in the United Kingdom.Patients with squamous high grade dysplasia(HGD)and early squamous cell carcinoma(ESCC)confined to the mucosa were treated.Visible lesions were removed by endoscopic mucosal resection(EMR)before RFA.Following initial RFA treatment,patients were followed up 3monthly.Residual flat dysplasia was treated with RFA until complete reversal dysplasia(CR-D)was achieved or progression to invasive Squamous cell cancer defined as infiltration into the submucosa layer or beyond.The main outcome measures were CR-D at 12 mo from start of treatment,long term durability,progression to cancer and adverse events.RESULTS:Twenty patients with squamous HGD/ESCC completed treatment protocol.Five patients(25%)had EMR before starting RFA treatment.CR-D was 50%at12 mo with a median of 1 RFA treatment,mean 1.5(range 1-3).Two further patients achieved CR-D with repeat RFA after this time.Eighty per cent with CR-D remain dysplasia free at latest biopsy,with median follow up 24 mo(IQR 17-54).Six of 20 patients(30%)progressed to invasive cancer at 1 year.Four patients(20%)required endoscopic dilatations for symptomatic structuring after treatment.Two of these patients have required serial dilatations thereafter for symptomatic dysphagia with a median of 4 dilatations per patient.The other 2 patients required only a single dilatation to achieve an adequate symptomatic response.One patient developed cancer during follow up after end of treatment protocol.CONCLUSION:The role of RFA in these patients re-mains unclear.In our series 50%patients responded at12 mo.These figures are lower than limited published data.Rehan J Haidry Mohammed A Butt Jason Dunn Matthew Banks Abhinav Gupta Howard Smart Pradeep Bhandari Lesley Ann Smith Robert Willert Grant Fullarton Morris John Massimo Di Pietro Ian Penman Marco Novelli Laurence B Lovat 2013World Journal of Gastroenterology2013,19,36:7
8Management of Hyperglycemia in Type 2 Diabetes: A Patient-Centered Approach: Position Statement of the American Diabetes Association (ADA) and the European Association for the Study of Diabetes (EASD)显示文摘Inzucchi Silvio E Bergenstal Richard M Buse John B Diamant Michaela Ferrannini Ele Nauck Michael Peters Anne L Tsapas Apostolos Wender Richard Matthews David R 2012EN2012,,3:6
9MicroRNAs and liver cancer associated with iron overload:Therapeutic targets unravelled显示文摘Primary liver cancer is a global disease that is on the increase.Hepatocellular carcinoma(HCC)accounts for most primary liver cancers and has a notably low survival rate,largely attributable to late diagnosis,resistance to treatment,tumour recurrence and metastasis.MicroRNAs(miRNAs/miRs)are regulatory RNAs that modulate protein synthesis.miRNAs are involved in several biological and pathological processes including the development and progression of HCC.Given the poor outcomes with current HCC treatments,miRNAs represent an important new target for therapeutic intervention.Several studies have demonstrated their role in HCC development and progression.While many risk factors underlie the development of HCC,one process commonly altered is iron homeostasis.Iron overload occurs in several liver diseases associated with the development of HCC including Hepatitis C infection and the importance of miRNAs in iron homeostasis and hepatic iron overload is well characterised.Aberrant miRNA expression in hepatic fibrosis and injury response have been reported,as have dysregulated miRNA expression patterns affecting cell cycle progression,evasion of apoptosis,invasion and metastasis.In2009,miR-26a delivery was shown to prevent HCC progression,highlighting its therapeutic potential.Several studies have since investigated the clinical potential of other miRNAs with one drug,Miravirsen,currently in phaseⅡclinical trials.miRNAs also have potential as biomarkers for the diagnosis of HCC and to evaluate treatment efficacy.Ongoing studies and clinical trials suggest miRNA-based treatments and diagnostic methods will have novel clinical applications for HCC in the coming years,yielding improved HCC survival rates and patient outcomes.Catherine M Greene Robert B Varley Matthew W Lawless 2013World Journal of Gastroenterology2013,19,32:5
10Bravo (wireless) ambulatory esophageal pH monitoring: How do day 1 and day 2 results compare?显示文摘AIM: To investigate if differences exist for patients’ gastroesophageal reflux as measured by the Bravo ambulatory esophageal pH system between d 1 and d 2. METHODS: A retrospective study of 27 consecutive adult patients who underwent Bravo esophageal pH monitoring was performed. Patients underwent EGD under Ⅳ conscious sedation prior to Bravo placement. Acid reflux variables and symptom scores for d 1 were compared to d 2. RESULTS: The mean doses of fentanyl and midazolam were 90.4 μg and 7.2 mg, respectively. D 1 results were significantly more elevated than d 2 with respect to total time pH < 4, upright position reflux, and mean number of long refluxes. No statistical difference was noted between the two days for supine position reflux, number of refluxes, duration of longest reflux, episodes of heartburn, and symptom score. CONCLUSION: Patients undergoing Bravo esophageal pH monitoring in association with EGD and moderate conscious sedation experience significantly more acid reflux on d 1 compared to d 2. The Ⅳ sedation may be responsible for the increased reflux on d 1. Performed this way, 48-h Bravo results may not be entirely representative of the patients’ true GE reflux profile.Matthew L Bechtold Jason-Scott L Holly Klaus Thaler John B Marshall 2007World Journal of Gastroenterology2007,13,30:4
11Secondary angiodysplasia-associated gastrointestinal bleeding in end-stage renal disease: Results from the nationwide inpatient sample显示文摘BACKGROUND Chronic kidney disease is associated with angiodysplasia of gastrointestinal tract leading to increased risk of gastrointestinal bleeding.AIM To determine the nationwide prevalence,trends,predictors and resource utilization of angiodysplasia-associated gastrointestinal bleeding in end-stage renal disease hospitalizations.METHODS The Nationwide Inpatient Sample database from 2009 to 2014,was utilized to conduct a retrospective study on patients with angiodysplasia associatedgastrointestinal bleeding and end-stage renal disease.Hospitalizations with endstage renal disease were included in the Nationwide Inpatient Sample database and a subset of hospitalizations with end-stage renal disease and angiodysplasiaassociated gastrointestinal bleeding were identified with International Classification of Diseases,9th revision,Clinical Modification codes for both endstage renal disease(585.6)and angiodysplasia(569.85,537.83).RESULTS The prevalence of angiodysplasia-associated gastrointestinal bleeding was 0.45%(n=24709)among all end-stage renal disease patients(n=5505252)that were hospitalized.Multivariate analysis indicated that the following were significant factors associated with higher odds of angiodysplasia associated-gastrointestinal bleeding in end-stage renal disease patients:an increasing trend from 2009-2014(P<0.01),increasing age(P<0.0001);African American race(P=0.0206);increasing Charlson-Deyo Comorbidity Index(P<0.01);hypertension(P<0.0001);and tobacco use(P<0.0001).Diabetes mellitus(P<0.0001)was associated with lower odds of angiodysplasia associated-gastrointestinal bleeding in end-stage renal disease patients.In comparison with urban teaching hospitals,rural and urban nonteaching hospitals were associated with decreased odds of angiodysplasia associated-gastrointestinal hemorrhage.CONCLUSION Angiodysplasia-associated gastrointestinal bleeding in end-stage renal disease patients showed an increasing trend from 2009-2014.Advanced age,African American race,overall high comorbidities,hypertension and smoking were significant factors for angiodysplasia-associated gastrointestinal bleeding in bleeding in these patients.Tooba Tariq Patrick Karabon Furqan B Irfan Sachin Goyal Matthew Masaru Mayeda Austin Parsons Stephanie Judd Murray Ehrinpreis 2019World Journal of Gastrointestinal Endoscopy2019,11,10:3
12Sodium glucose co-transporter 2 inhibition reduces succinate levels in diabetic mice显示文摘BACKGROUND Type 1 diabetes(T1D) is associated with major chronic microvascular complications which contribute significantly to diabetes associated morbidity.The protein primarily responsible for glucose reabsorption in the kidney is sodium glucose co-transporter 2(SGLT2). Presently, SGLT2 inhibitors are widely used in diabetic patients to improve blood glucose levels and prevent cardiovascular and renal complications. Given the broad therapeutic application of SGLT2 inhibitors, we hypothesised that SGLT2 inhibition may exert its protective effects via alterations of the gut microbiome and tested this in a type 1 diabetic mouse model of diabetic retinopathy.AIM To determine whether the treatment with two independent SGLT2 inhibitors affects gut health in a type 1 diabetic mouse model.METHODS The SGLT2 inhibitors empagliflozin or dapagliflozin(25 mg/kg/d) or vehicle dimethylsulfoxide(DMSO) were administered to C57 BL/6 J, Akita, Kimba and Akimba mice at 10 wk of age for 8 wk via their drinking water. Serum samples were collected and the concentration of succinate and the short chain fatty acid(SCFA) butyric acid was measured using gas chromatography-mass spectrometry. Enzyme-linked immunosorbent assay(ELISA) was performed to determine the concentration of insulin and leptin. Furthermore, the norepinephrine content in kidney tissue was determined using ELISA. Pancreatic tissue was collected and stained with haematoxylin and eosin and analysed using brightfield microscopy.RESULTS Due to the presence of the Akita allele, both Akita and Akimba mice showed a reduction in insulin production compared to C57 BL/6 J and Kimba mice.Furthermore, Akita mice also showed the presence of apoptotic bodies within the pancreatic islets. The acinar cells of Akita and Akimba mice showed swelling which is indicative of acute injury or pancreatitis. After 8 wk of SGLT2 inhibition with dapagliflozin, the intermediate metabolite of gut metabolism known as succinate was significantly reduced in Akimba mice when compared to DMSO treated mice. In addition, empagliflozin resulted in suppression of succinate levels in Akimba mice. The beneficial SCFA known as butyric acid was significantly increased in Akita mice after treatment with dapagliflozin when compared to vehicle treated mice. The norepinephrine content in the kidney was significantly reduced with both dapagliflozin and empagliflozin therapy in Akita mice and was significantly reduced in Akimba mice treated with empagliflozin.In non-diabetic C57 BL/6 J and Kimba mice, serum leptin levels were significantly reduced after dapagliflozin therapy.CONCLUSION The inhibition of SGLT2 reduces the intermediate metabolite succinate, increases SCFA butyric acid levels and reduces norepinephrine content in mouse models of T1 D. Collectively, these improvements may represent an important mechanism underlying the potential benefits of SGLT2 inhibition in T1 D and its complications.Lakshini Y Herat Natalie C Ward Aaron L Magno Elizabeth P Rakoczy Marcio G Kiuchi Markus P Schlaich Vance B Matthews 2020World Journal of Gastroenterology2020,26,23:3
13Requirement for cyclin D3 in germinal center formation and function显示文摘第二等的淋巴的纸巾的幼芽的中心(GC ) 对装高亲密关系的体液的有免疫力的回答批评。当多样化他们的抗体基因时,在 GC 以内的 B 房间经历快速的同种细胞的扩大和选择。尽管 GC B 房间采用一个唯一的 proliferative 程序提供这些进程,这通常被相信,很少联系 GC 的房间周期怎么被安排被知道。D 类型 cyclins 组成使房间能对生理的变化作出回应的房间周期引擎的一个重要部件。房间类型 -- 并且 D 类型 cyclins 的发展阶段特定的角色被描述了,但是 cyclin D 要求没在 GC 反应期间被探讨。在这研究,我们报导 cyclin D3 为切换的增长和 Ig 班大部分是非必需的在 vitro 激活的 B 房间。相反,在 Ccnd3 的 GC 开发 ?/ ?老鼠显著地被损害,作为是 T 房间依赖者抗体反应。在 GC 以内,尽管切换, unswitched B 房间被 cyclin D3 inactivation 影响, IgM?水池更严重地被减少。有趣地尽管有 cyclin D2 表示的补偿增加, Ccnd3 的一个重要数字 ?/ ?GC B 房间处于静止 G0 状态积累。最后,尽管 cyclin D3 inactivation 没在 GC B 房间破坏 BCL6 表示,支持 BCL6 overexpression 的效果完全堵住了 GC,建议 cyclin D3 调整 GC 形成的 BCL6 下游地行动。这是 cyclin D3 玩的第一示范在 B 房间开发的 GC 阶段的一个重要、唯一的角色。Jonathan U Peled J Jessica Yu Jeganathan Venkatesh Enguang Bi B Belinda Ding Melissa Krupski-Downs Rita Shaknovich Piotr Sicinski Betty Diamond Matthew D Scharff B Hilda Ye 2010Cell Research2010,20,6:3
14Autoimmune myasthenia gravis: emerging clinical and biological heterogeneity显示文摘Matthew N Meriggioli Donald B Sanders 2009Lancet Neurology2009,,5:2
15Implementation of a spatial decision support system for rural land use planning: integrating geographic information system and environmental models with search and optimisation algorithms显示文摘Keith B Matthews Alan R Sibbald Susan Craw 1999Computers and Electronics in Agriculture1999,,1:2
16Contrast-induced acute kidney injury in kidney transplant recipients: A systematic review and meta-analysis显示文摘AIM To evaluate the incidence of contrast-induced acute kidney injury(CIAKI) in kidney transplant recipients. METHODS A literature search was performed using MEDLINE, EMBASE, and the Cochrane Database of Systematic Reviews from the inception of the databases through July 2016. Studies assessing the incidence of CIAKI in kidney transplant recipients were included. We applied a randomeffects model to estimate the incidence of CIAKI.RESULTS Six studies of 431 kidney transplant recipients were included in the analyses to assess the incidence of CIAKI in kidney transplant recipients. The estimated incidence of CIAKI and CIAKI-requiring dialysis were 9.6%(95%CI: 4.5%-16.3%) and 0.4%(95%CI: 0.0%-1.2%), respectively. A sensitivity analysis limited only to the studies that used low-osmolar or iso-osmolar contrast showed the estimated incidence of CIAKI was 8.0%(95%CI: 3.5%-14.2%). The estimated incidences of CIAKI in recipients who received contrast media with cardiac catheterization, other types of angiogram, and CT scan were 16.1%(95%CI: 6.6%-28.4%), 10.1%(95%CI: 4.2%-18.0%), and 6.1%(95%CI: 1.8%-12.4%), respectively. No graft losses were reported within 30 d post-contrast media administration. However, data on the effects of CIAKI on long-term graft function were limited.CONCLUSION The estimated incidence of CIAKI in kidney transplant recipients is 9.6%. The risk stratification should be considered based on allograft function, indication, and type of procedure.Wisit Cheungpasitporn Charat Thongprayoon Michael A Mao Shennen A Mao Matthew R D'Costa Wonngarm Kittanamongkolchai Kianoush B Kashani 2017World Journal of Transplantation2017,7,1:2
17Landscape features and weather influence nest survival of a ground-nesting bird of conservation concern,the greater sage-grouse,in humanaltered environments显示文摘Introduction:Ground-nesting birds experience high levels of nest predation.However,birds can make selection decisions related to nest site location and characteristics that may result in physical,visual,and olfactory impediments to predators.Methods:We studied daily survival rate[DSR]of greater sage-grouse(Centrocercus urophasianus)from 2008 to 2010 in an area in Wyoming experiencing large-scale alterations to the landscape.We used generalized linear mixed models to model fixed and random effects,and a correlation within nesting attempts,individual birds,and years.Results:Predation of the nest was the most common source of nest failure(84.7%)followed by direct predation of the female(13.6%).Generally,landscape variables at the nest site(≤30 m)were more influential on DSR of nests than features at larger spatial scales.Percentage of shrub canopy cover at the nest site(15-m scale)and distances to natural gas wells and mesic areas had a positive relationship with DSR of nests,whereas distance to roads had a negative relationship with DSR of nests.When added to the vegetation model,maximum wind speed on the day of nest failure and a 1-day lag in precipitation(i.e.,precipitation the day before failure)improved model fit whereby both variables negatively influenced DSR of nests.Conclusions:Nest site characteristics that reduce visibility(i.e.,shrub canopy cover)have the potential to reduce depredation,whereas anthropogenic(i.e.,distance to wells)and mesic landscape features appear to facilitate depredation.Last,predators may be more efficient at locating nests under certain weather conditions(i.e.,high winds and moisture).Stephen L Webb Chad V Olson Matthew R Dzialak Seth M Harju Jeffrey B Winstead Dusty Lockman 2012Ecological Processes2012,1,1:2
18Endoscopic ultrasound-guided fiducial marker placement in pancreatic cancer:A systematic review and meta-analysis显示文摘BACKGROUND Pancreatic cancer(PC)mortality remains high despite advances in therapy.Combination chemoradiotherapy offers modest survival benefit over monotherapy with either.Fiducial markers serve as needed landmarks for imageguided radiotherapy(IGRT).Traditionally,these markers were placed surgically or percutaneously with limitations of each.Endoscopic ultrasound-guided placement overcomes these limitations.AIM To evaluate the safety,efficacy,and feasibility of endoscopic ultrasound(EUS)-guided fiducial placement for PC undergoing IGRT.METHODS Articles were searched in MEDLINE,PubMed,and Ovid journals.Pooling was conducted by fixed and random effects models.Heterogeneity was assessed using Cochran’s Q test based upon inverse variance weights.RESULTS Initial search identified 1024 reference articles for EUS-guided fiducial placement in PC.Of these,261 relevant articles were reviewed.Data was extracted from 11 studies(n=820)meeting inclusion criteria.Pooled proportion of successful placement was 96.27%(95%CI:95.35-97.81)with fiducial migration rates low at 4.33%(95%CI:2.45-6.71).Adverse event rates remained low,with overall pooled proportion of 4.85%(95%CI:3.04-7.03).CONCLUSION EUS-guided placement of fiducial markers for IGRT of PC is safe,feasible,and efficacious.The ability to target deep structures under direct visualization while remaining minimally invasive are added benefits.Moreover,the ability to perform fine needle aspiration or celiac plexus neurolysis add value and increase patient-care efficiency.Whether EUS-guided fiducial placement improves outcomes in IGRT or offers any mortality benefits over traditional placement remains unknown and future studies are needed.Jaymon B Patel Vakya Revanur David G Forcione Matthew L Bechtold Srinivas R Puli 2020World Journal of Gastrointestinal Endoscopy2020,12,8:2
19Role of Small Bowel Follow-through in Diagnosing Inflammation of the Terminal Ileum in Pediatric Patients显示文摘Matthew Stenerson Eric Vittinghoff Melvin B Heyman Grace E Kim Neera Gupta 2010Journal of Pediatric Gastroenterology and Nutrition2010,,4:2
20Endotipsitis: A case report with a literature review on an emerging prosthetic related infection显示文摘AIM: To investigate the etiology and management of a poorly understood complication of transjugular intrahepatic portosystemic shunt; 'endotipsitis'.METHODS: A MEDLINE database search was carriedout, reviewing all papers with specific words in the title or abstract, and excluding appropriately. Of 283 papers that were reviewed, 22 papers reporting 53 cases in total were included in the analyses. RESULTS: No predominant etiology for endotipsitis was identified, but gram-positive organisms were more common among early-onset infections(P < 0.01). A higher mortality rate was associated with Staphylococcus aureus and Candida spp infections(P < 0.01). There was no trend in choice of antibiotic based on the microorganisms isolated and treatment varied from the guidelines of other vegetative prosthetic infections. In endotipsitis 'high risk' organisms have been identified, emphasizing the importance of ensuring optimal antimicrobial therapy and adjunctive management strategies.CONCLUSION: Higher mortality rate was associated with Staphylococcus aureus and Candida spp infections. A prospective multicenter trial is needed before specific treatment can be recommended.Annalan MD Navaratnam Matthew Grant David B Banach 2015World Journal of Hepatology2015,7,4:2
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