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1Challenges in diagnosing mesenteric ischemia显示文摘Early identification of acute mesenteric ischemia (AMI) is challenging. The wide variability in clinical presentation challenges providers to make an early accurate diagnosis. Despite major diagnostic and treatment advances over the past decades, mortality remains high. Arterial embolus and superior mesenteric artery thrombosis are common causes of AMI. Non-occlusive causes are less common, but vasculitis may be important, especially in younger people. Because of the unclear clinical presentation and non-specific laboratory findings, low clinical suspicion may lead to loss of valuable time. During this diagnostic delay, progression of ischemia to transmural bowel infarction with peritonitis and septicemia may further worsen patient outcomes. Several diagnostic modalities are used to assess possible AMI. Multi-detector row computed tomographic angiography is the current gold standard. Although computed tomographic angiography leads to an accurate diagnosis in many cases, early detection is a persistent problem. Because early diagnosis is vital to commence treatment, new diagnostic strategies are needed. A non-invasive simple biochemical test would be ideal to increase clinical suspicion of AMI and would improve patient selection for radiographic evaluation. Thus, AMI could be diagnosed earlier with follow-up computed tomographic angiography or high spatial magnetic resonance imaging. Experimental in vitro and in vivo studies show promise for alpha glutathione S transferase and intestinal fatty acid binding protein as markers for AMI. Future research must confirm the clinical utility of these biochemical markers in the diagnosis of mesenteric ischemia.Teun C van den Heijkant Bart AC Aerts Joep A Teijink Wim A Buurman Misha DP Luyer 2013World Journal of Gastroenterology2013,19,9:31
2Strategies to reduce pulmonary complications after esophagectomy显示文摘Esophagectomy,the surgical removal of all or part of the esophagus,is a surgical procedure that is associated with high morbidity and mortality.Pulmonary complications are an especially important postoperative problem.Therefore,many perioperative strategies to prevent pulmonary complications after esophagectomy have been investigated and introduced in daily clinical practice.Here,we review these strategies,including improvement of patient performance and technical advances such as minimally invasive surgery that have been implemented in recent years.Furthermore,interventions such as methylprednisolone,neutrophil elastase inhibitor and epidural analgesia,which have been shown to reduce pulmonary complications,are discussed.Benefits of the commonly applied routine nasogastric decompression,delay of oral intake and prophylactic mechanical ventilation are unclear,and many of these strategies are also evaluated here.Finally,we will discuss recent insights and new developments aimed to improve pulmonary outcomes after esophagectomy.Teus J Weijs Jelle P Ruurda Grard AP Nieuwenhuijzen Richard van Hillegersberg Misha DP Luyer 2013World Journal of Gastroenterology2013,19,39:17
3感染模型家兔体内莫西沙星的药动学显示文摘目的 :研究莫西沙星在感染家兔模型中的药物动力学。方法 :8只家兔经埴入高尔夫练习球并用肺炎链球菌感染 3d后 ,用多剂量口服莫西沙星治疗 ,第 5天进行药动学试验。用高效液相色谱法测定血药浓度。结果 :莫西沙星在家兔体内属线性药物并符合二房室模型 ;达峰时间为 (1.2± 0 .6)h ,峰浓度为 (13 .2± 4 .0 ) μg·ml-1,曲线下面积为 (86.5± 2 1.1) μg·ml-1·h ,消除半衰期为 (13 .0± 6.2 )h。 4只家兔高尔夫练习球内的莫西沙星血清峰浓度 ,在为 3 .6± 2 .1μg·ml-12 4h内的平均曲线下面积为 (65 .4± 2 1.1) μg·ml-1·h。结论 :获得的莫西沙星在家兔模型中的药动学参数 ,对今后莫西沙星的药效学研究有很大的帮助。钟明康 Xuan D Nicolau DP Nightingale CH2 2001中国医院药学杂志2001,21,1:10
4Non-invasive markers of gut wall integrity in health and disease显示文摘The intestinal mucosa is responsible for the absorption of nutrients from the lumen and for the separation of the potentially toxic luminal content(external environment) from the host(internal environment).Disruption of this delicate balance at the mucosal interface is the basis for numerous(intestinal) diseases.Experimental animal studies have shown that gut wall integrity loss is involved in the development of various inflammatory syndromes,including post-operative or post-traumatic systemic inflammatory response syndrome,sepsis,and multiple organ failure.Assessment of gut wall integrity in clinical practice is still a challenge,as it is difficult to evaluate the condition of the gut non-invasively with currently available diagnostic tools.Moreover,non-invasive,rapid diagnostic means to assess intestinal condition are needed to evaluate the effects of treatment of intestinal disorders.This review provides a survey of non-invasive tests and newly identified markers that can be used to assess gut wall integrity.Joep PM Derikx Misha DP Luyer Erik Heineman Wim A Buurman 2010World Journal of Gastroenterology2010,16,42:9
5Peritoneal carcinomatosis of colorectal origin:Incidence,prognosis and treatment options显示文摘Peritoneal carcinomatosis (PC) is one manifestation of metastatic colorectal cancer (CRC). Tumor growth on intestinal surfaces and associated fluid accumulation eventually result in bowel obstruction and incapacitating levels of ascites, which profoundly affect the quality of life for affected patients. PC appears resistant to traditional 5-fluorouracil-based chemotherapy, and surgery was formerly reserved for palliative purposes only. In the absence of effective treatment, the histori-cal prognosis for these patients was extremely poor, with an invariably fatal outcome. These poor outcomes likely explain why PC secondary to CRC has received little attention from oncologic researchers. Thus, data are lacking regarding incidence, clinical disease course, and accurate treatment evaluation for patients with PC. Recently, population-based studies have revealed that PC occurs relatively frequently among patients withCRC. Risk factors for developing PC have been identi-fied:right-sided tumor, advanced T-stage, advanced N-stage, poor differentiation grade, and younger age at diagnosis. During the past decade, both chemother-apeutical and surgical treatments have achieved prom-ising results in these patients. A chance for long-term survival or even cure may now be offered to selected patients by combining radical surgical resection with intraperitoneal instillation of heated chemotherapy. This combined procedure has become known as hy-perthermic intraperitoneal chemotherapy. This edito-rial outlines recent advancements in the medical and surgical treatment of PC and reviews the most recent information on incidence and prognosis of this disease. Given recent progress, treatment should now be considered in every patient presenting with PC.Yvonne LB Klaver Valery EPP Lemmens Simon W Nienhuijs Misha DP Luyer Ignace HJT de Hingh 2012World Journal of Gastroenterology2012,18,39:9
6Isotopic compositions of chlorine in brine and saline minerals显示文摘CHLORINE in the nature has two stable isotopes, 35Cl and 37Cl. Two methods of determining isotopic ratios of chlorine were once developed. Owen, Kaufmann and Long determined 37Cl/35Cl ratios based on the measurement of CH3Cl+ ion produced by ionization of methyl chlorine. The precision of the measurement of Cl-(NTIMS) was reported by Shields and Vengosh. The NTIMS has less precision.Xiao, YK Liu, WG Zhou, YM Sun, DP 1997Chinese Science Bulletin1997,42,5:7
7Challenges in diagnosing adhesive small bowel obstruction显示文摘Adhesive small bowel obstruction(ASBO)is the most frequently encountered surgical disorder of the small intestine.Up to 80%of ASBO cases resolve spontaneously and do not require invasive treatment.It is important to identify such patients that will benefit from conservative treatment in order to prevent unnecessarily exposing them to the risks associated with surgical intervention,such as morbidity and further adhesion formation.For the remaining ASBO patients,timely surgical intervention is necessary to prevent small bowel strangulation,which may cause intestinal ischemia and bowel necrosis.While early identification of these patients is key to decreasing ASBO-related morbidity and mortality,the non-specific signs and laboratory findings upon clinic presentation limit timely diagnosis and implementation of appropriate clinical management.Combining the clinical presentation findings with those from other diagnostic imaging modalities,such as abdominal X-ray,computed tomography-scan and water-soluble contrast studies,will improve diagnosis of ASBO and help clinicians to better evaluate the potential of conservative management as a safe strategy for a particular patient.Nonetheless,patients who present with moderate findings by all these approaches continue to represent a challenge.A new diagnostic strategy is urgently needed to further improve our ability to identify early signs of strangulated bowel,and this diagnostic modality should be able to indicate when surgical management is required.A number of potential serum markers have been proposed for this purpose,including intestinal fatty acid binding protein andα-glutathione S transferase.On-going research is attempting to clearly define their diagnostic utility and to optimize their potential role in determining which patients should be managed surgically.Thijs R van Oudheusden Bart AC Aerts Ignace HJT de Hingh Misha DP Luyer 2013World Journal of Gastroenterology2013,19,43:7
8Investigation of recombinant Schistosoma japonicum paramyosin fragments for immunogenicity and vaccine efficacy in mice显示文摘Zhang DM Pan WQ Qian L Duke M Shen LH McManus DP 2006第二军医大学学报2006,27,6:6
9Three-Dimensional Boundary Element Method Applied to Nonlinear Wave Transformation显示文摘For higher accuracy in simulating the transformation of three dimensional waves,in consid-eration of the advantages of constant panels and linear elements,a combined boundary elements is appliedin this research.The method can be used to remove the transverse vibration due to the accumulation ofcomputational errors.A combined boundary condition of sponge layer and Sommerfeld radiation condi-tion is used to remove the reflected waves from the computing domain.By following the water particle onthe water surface,the third order Stokes wave transform is simulated by the numerical wave flume tech-nique.The computed results are in good agreement with theoretical ones.Sun, DP Li, YC Teng, B 1999China Ocean Engineering1999,14,2:4
10持续气道正压通气在预防阻塞性睡眠呼吸暂停患者心血管事件中的作用显示文摘阻塞性睡眠呼吸暂停(obstructive sleep apnea,OSA)导致阵发性低氧血症,夜间交感神经系统激活,血压、氧化应激和炎症指标的升高以及高凝血症。较大的胸内负压波动也会给心脏和大血管施加机械应力。基于人群和睡眠诊所的队列研究显示,OSA与心脑血管事件,特别是脑卒中相关。McEvoy RD Antic NA Heeley E Luo Y Ou Q Zhang X Mediano O Chen R Drager LF Liu Z Chen G Du B McArdle N Mukherjee S Tripathi M Billot L Li Q Lorenzi-Filho G Barbe F Redline S Wang J Arima H Neal B White DP Grunstein RR Zhong N Anderson CS 练桂丽 叶鹏 2016中华高血压杂志2016,24,11:4
11花生四烯酸产物对系膜细胞增殖作用的研究显示文摘用[3H]胸腺嘧啶核甙([3H-thymidine,[3H]-TdR)掺入法测定花生四烯酸产物对体外培养的大鼠肾小球系膜细胞的增殖作用。前列腺素E2(prostaglandin,PG)抑制血清所致的系膜细胞增殖。血栓素A2(thromboxane,Tx)类似物U46619、白三烯(leukotuiene,LT)C4、LTD、12-羟二十碳四烯酸(12-hydroxyeicosatetraenoicacid,12-HETE)、15-HETE促进静息的系膜细胞增殖,LTB4及5-HETE无此作用。用特异性蛋白激酶C(proteinkinaseC,PKc)抑制剂可抑制U46619、LTC4、LTD4及12-HETE的促增殖作用。PGF2α、U46619、LTC4、LTD4促进系膜细胞合成二脂酰甘油(diacylglycerol,DAG)。PGF2α及LTD4刺激系膜细胞合成三磷酸肌醇(inositoltriphosphate,IP3)。提示部分花生四烯酸产物活化PKC而促进系膜细胞增殖。吴升华 Kele.,DP 1994中国病理生理杂志1994,10,6:4
12药疹的斑贴试验显示文摘对药疹患者,找出致病药物是很重要的。常用的方法有:钟刺、划痕、皮内试验、斑贴试验(PT)、放射变应原吸收试验(RAST)、淋巴细胞转化试验(LTT)Bruynzeel DP 钱恒林 1990国外医学(皮肤性病学分册)1990,16,5:3
13重组日本血吸虫副肌球蛋白的表达与纯化显示文摘用基因重组技术 ,将日本血吸虫副肌球蛋白 (rSj97)基因亚克隆至表达载体pQE30上。在IPTG诱导下 ,重组日本血吸虫副肌球蛋白在大肠杆菌中得以高效表达。通过快速蛋白质液相色谱仪 (FPLC) ,经TALON柱和离子交换柱两步分离纯化 ,获得大量高纯度的重组日本血吸虫副肌球蛋白 。周金春 易新元 Kalinna BH Mc Manus DP 2000湖南医科大学学报2000,25,2:3
14Conserved seed pairing,often flanked by adenosines,indicates that thousands of human genes are microRNA targets显示文摘Lewis BP Burge CB Bartel DP Cell0,,:3
15系统性药物治疗儿童银屑病的安全性显示文摘银屑病是一种常见的慢性炎症性皮肤病。成年人的发病率为2%~3%,其中大约有三分之一的患者在18岁之前发病。在儿童期,该病的发病率呈线性增长。从1970年至2000年,儿童银屑病的发病率增加了一倍多。尽管对许多轻度银屑病患儿而言,局部治疗已足够,但对更多可能影响生活质量的重度或顽固性的银屑病患儿,则往往需要系统性治疗。bronckers imgj seyger mmb west dp lara-corrales i tollefson m tom wl hogeling m belazarian l zachariae c mahé e siegfried e philipp s szalai z vleugels ra holland k murphy r baselga e cordoro k lambert j alexopoulos a mrowietz u kievit w paller as 邓婕(编译) 张锡宝(审校) 2017皮肤性病诊疗学杂志2017,24,5:3
16Diagnostic value of drain amylase for detecting intrathoracic leakage after esophagectomy显示文摘AIM:To investigate the value of elevated drain amylase concentrations for detecting anastomotic leakage(AL) after minimally invasive Ivor-Lewis esophagectomy(MIILE).METHODS:This was a retrospective analysis of prospectively collected data in two hospitals in the Netherlands. Consecutive patients undergoing MI-ILE were included. A Jackson-Pratt drain next to the dorsal side of the anastomosis and bilateral chest drains were placed at the end of the thoracoscopic procedure. Amylase levels in drain fluid were determined in all patients during at least the first four postoperative days. Contrast computed tomography scans and/or endoscopic imaging were performed in cases of a clinically suspected AL. Anastomotic leakage was defined as any sign of leakage of the esophago-gastric anastomosis on endoscopy,re-operation,radiographic investigations,post mortal examination or when gastro-intestinal contents were found in drain fluid. Receiver operator characteristic curves were used to determine the cut-off values. Sensitivity,specificity,positive predictive value,negative predictive value,risk ratio and overall test accuracy were calculated for elevated drain amylase concentrations.RESULTS:A t o t a l o f 8 9 p a t ie n t s w e re in c lu d e d between March 2013 and August 2014. No differences in group characteristics were observed between patients with and without AL,except for age. Patients with AL were older than were patients without AL(P = 0.01). One patient(1.1%) without AL died within 30 d after surgery due to pneumonia and acute respiratory distress syndrome. Anastomotic leakage that required any intervention occurred in 15 patients(16.9%). Patients with proven anastomotic leakage had higher drain amylase levels than patients without anastomotic leakage [median 384 IU/L(IQR 34-6263) vs median 37 IU/L(IQR 26-66),P = 0.003]. Optimal cut-off values on postoperative days 1,2,and 3 were 350 IU/L,200 IU/L and 160 IU/L,respectively. An elevated amylase level was found in 9 of the 15 patients with AL. Five of these 9 patients had early elevations of their amylase levels,with a median of 2 d(IQR 2-5) before signs and symptoms occurred.CONCLUSION:Measurement of drain amylase levels is an inexpensive and easy tool that may be used to screen for anastomotic leakage soon after MI-ILE. However,clinical validation of this marker is necessary.Gijs HK Berkelmans Ewout A Kouwenhoven Boudewijn JJ Smeets Teus J Weijs Luis C Silva Corten Marc J van Det Grard AP Nieuwenhuijzen Misha DP Luyer 2015World Journal of Gastroenterology2015,21,30:3
17金合欢香料显示文摘Anon.,DP 张幼宁 1990四川日化1990,,4:2
18Land-use and land-cover change:science/research plan显示文摘IGBP & H DP 1995IGBP Report 35: HDP Report1995,,7:2
19重组脊髓灰质炎病毒用于治疗复发胶质母细胞瘤(英文)显示文摘Background The prognosis of patients with recurrent World Health Organization(WHO)grade IV malignant glioma is dismal,and there is currently no effective therapy.We conducted a dose-finding and toxicity study in this population of patients,evaluating convection-enhanced,intratumoral delivery of the recombinant nonpathogenic polio-rhinovirus chimera(PVSRIPO).PVSRIPO recognizes the poliovirus receptor CD155,which is widely expressed in neoplastic cells of solid tumors and in major components of the tumor microenvironment.Methods We enrolled consecutive adult patients who had recurrent supratentorial WHO grade IV malignant glioma,confirmed on histopathological testing,with measurable disease(contrast-enhancing tumor of≥1 cm and≤5.5 cm in the greatest dimension).The study evaluated seven doses,ranging between 107 and 1010 50%tissue-culture infectious doses(TCID50),first in a dose-escalation phase and then in a dose-expansion phase.Results From May 2012 through May 2017,a total of 61 patients were enrolled and received a dose of PVSRIPO.Dose level-1(5.0×107TCID50)was identified as the phase 2 dose.One dose-limiting toxic effect was observed;a patient in whom dose level 5(1010TCID50)was administered had a grade 4 intracranial hemorrhage immediately after the catheter was removed.To mitigate locoregional inflammation of the infused tumor with prolonged glucocorticoid use,dose level 5 was deescalated to reach the phase 2 dose.In the dose-expansion phase,19%of the patients had a PVSRIPO-related adverse event of grade 3 or higher.Overall survival among the patients who received PVSRIPO reached a plateau of 21%(95%confidence interval,11 to 33)at 24 months that was sustained at 36 months.Conclusions Intratumoral infusion of PVSRIPO in patients with recurrent WHO grade IV malignant glioma confirmed the absence of neurovirulent potential.The survival rate among patients who receivedPVSRIPO immunotherapy was higher at 24 and 36 months than the rate among historical controls.Desjardins A Gromeier M Herndon JE 2nd Beaubier N Bolognesi DP Friedman AH Friedman HS McSherry F Muscat AM Nair S Peters KB Randazzo D Sampson JH Vlahovic G Harrison WT McLendon RE Ashley D Bigner DD 2018中华神经外科疾病研究杂志2018,17,4:2
20日本血吸虫重组22kD表膜蛋白免疫水牛的效果观察显示文摘目的 用重组日本血吸虫 2 2 k D表膜蛋白 (r Sj2 2 )免疫水牛 ,检测特异性 Ig G抗体的应答水平 ,并观察抗血吸虫的保护效果。方法 用抗原 (r Sj2 2 )加佐剂 (Quil- A)肌肉注射免疫水牛 ,以10 0 0条日本血吸虫尾蚴攻击感染 ,感染后 5 5 d剖杀 ,计算减虫和减卵率。用免疫印斑和 EL ISA方法测定抗体反应。结果 免疫组每头牛血清均能特异地识别 r Sj2 2 k D抗原和成虫抗原中的 2 2 k D分子 ,特异性 Ig G抗体滴度达 1:2 5 6 0 0。与 Quil- A对照组相比 ,减虫率仅 8.5 % ,肝卵 EPG减少12 .3% ,粪卵 EPG减少 2 6 .8% ,但均无统计学意义。结论 用 r Sj2 2 k D抗原免疫水牛诱导的特异性Ig周金春 易新元 曾宪芳 曾庆仁 张顺科 GJ Waine DP McManus 2001中国血吸虫病防治杂志2001,13,2:2
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