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901篇 您的检索式:作者名="OTTO M"
    题名 作者 年代 出处 被引量
1Obstructive jaundice due to hepatobiliary cystadenoma or cystadenocarcinoma显示文摘Hepatobiliary cystadenomas (HBC) and cystadenocarci- nomas are rare cystic lesions. Most patients with these lesions are asymptomatic, but presentation with ob- structive jaundice may occur. The first patient presented with intermittent colicky pain and recurrent obstructive jaundice. Imaging studies revealed a polypoid lesion in the left hepatic duct. The second patient had recurrent jaundice and cholangitis. Endoscopic retrograde cholan- giopancreatography (ERCP) showed a cystic lesion at the confluence of the hepatic duct. In the third patient with intermittent jaundice and cholangitis, cholangioscopy re- vealed a papillomatous structure protruding into the left bile duct system. In the fourth patient with obstructive jaundice, CT-scan showed slight dilatation of the intrahe- patic bile ducts and dilatation of the common bile duct of 3 cm. ERCP showed filling of a cystic lesion. All patients underwent partial liver resection, revealing HBC in the specimen. In the fifth patient presenting with obstructive jaundice, ultrasound examination showed a hyperecho- genic cystic lesion centrally in the liver. The resection specimen revealed a hepatobiliary cystadenocarcinoma. HBC and cystadenocarcinoma may give rise to obstruc- tive jaundice. Evaluation with cross-sectional imaging techniques is useful. ERCP is a useful tool to differentiate extraductal from intraductal obstruction.Deha Erdogan Olivier RC Busch Erik AJ Rauws Otto M van Delden Dirk J Gouma Thomas M van Gulik 2006World Journal of Gastroenterology2006,12,35:26
2Management of recurrent rectal cancer:A population based study in greater Amsterdam显示文摘AIM: To analyze,retrospectively in a population-based study,the management and survival of patients with recurrent rectal cancer initially treated with a macroscopically radical resection obtained with total mesorectal excision (TME). METHODS: All rectal carcinomas diagnosed during 1998 to 2000 and initially treated with a macroscopically radical resection (632 patients) were selected from the Amsterdam Cancer Registry. For patients with recurrent disease,information on treatment of the recurrence was collected from the medical records. RESULTS: Local recurrence with or without clinically apparent distant dissemination occurred in 62 patients (10%). Thirty-two patients had an isolated local recurrence. Ten of these 32 patients (31%) underwent radical re-resection and experienced the highest survival (three quarters survived for at least 3 years). Eight patients (25%) underwent non-radical surgery (median survival 24 mo),seven patients (22%) were treated with radio-and/or chemotherapy without surgery (median survival 15 mo) and seven patients (22%) only received best supportive care (median survival 5 mo). Distant dissemination occurred in 124 patients (20%) of whom 30 patients also had a local recurrence. The majority (54%) of these patients were treated with radio-and/or chemotherapy without surgery (median survival 15 mo). Twenty-seven percent of these patients only received best supportive care (median survival 6 mo),while 16% underwent surgery for their recurrence. Survival was best in the latter group (median survival 32 mo). CONCLUSION: Although treatment options and survival are limited in case of recurrent rectal cancer after radical local resection obtained with TME,patients can benefit from additional treatment,especially if a radical resection is feasible.Roel Bakx Otto Visser Judith Josso Sybren Meijer J Frederik M Slors J Jan B van Lanschot 2008World Journal of Gastroenterology2008,14,39:17
3Results of percutaneous sclerotherapy and surgical treatment in patients with symptomatic simple liver cysts and polycystic liver disease显示文摘AIM: To evaluate the results of the treatment of simple liver cysts (solitary and multiple) and polycystic liver disease (PLD) using percutaneous sclerotherapy and/or surgical procedures in a single tertiary referral centre. METHODS: Retrospective analysis of 54 patients referred for evaluation and possible treatment of simple liver cysts (solitary and multiple) and PLD, from January 1997 to July 2006. RESULTS: Simple liver cysts were treated in 41 pts (76/) with a mean size of 12.6 cm. The most common reason for referral was abdominal pain or discomfort (85/). Percutaneous sclerotherapy was performed as initial treatment in 30 pts, showing cyst recurrence in 6 pts (20/). Surgical treatment was initially performed in 11 pts with cyst recurrence in 3 pts (27/). PLD was treated in 13 pts (24/) with a mean size of the dominant cyst of 13 cm. Percutaneous sclerotherapy for PLD was performed in 9 pts with recurrence in 7 pts (77.8/). Surgical treatment for PLD was undertaken in 4 pts (30.8/) with recurrence in all. Eventually, 2 pts with PLD in the presence of polycystic kidney disease underwent liver-and kidney transplantation because of deterioration of liver and kidney function. CONCLUSION: The majority of patients with simple liver cysts and PLD are referred for progressive abdominal pain. As initial treatment, percutaneous sclerotherapy is appropriate. Surgical deroofing is indicated in caseof cyst recurrence after percutaneous sclerotherapy. However, the results of percutaneous sclerotherapy and surgical treatment for PLD are disappointing. Partial liver resection is indicated when there is suspicion of a pre-malignant lesion.Deha Erdogan Otto M van Delden Erik AJ Rauws Olivier RC Busch Johan S Lameris Dirk J Gouma Thomas M van Gulik 2007World Journal of Gastroenterology2007,13,22:15
4Correlation of IL-8 with induction, progression and metastatic potential of colorectal cancer显示文摘AIM: To investigate the expression profile of IL-8 in inflammatory and malignant colorectal diseases to evaluate its potential role in the regulation of colorectal cancer (CRC) and the development of colorectal liver metastases (CRLM). METHODS: IL-8 expression was assessed by quantitative real-time PCR (Q-RT-PCR) and the enzyme-linked immunosorbent assay (ELISA) in resected specimens from patients with ulcerative colitis (UC, n = 6) colorectal adenomas (CRA, n = 8), different stages of colorectal cancer (n = 48) as well as synchronous and metachronous CRLM along with their corresponding primary colorectal tumors (n = 16). RESULTS: IL-8 mRNA and protein expression was significantly up-regulated in all pathological colorectal entities investigated compared with the corresponding neighboring tissues. However, in the CRC specimens IL-8 revealed a significantly more pronounced overexpression in relation to the CRA and UC tissues with an average 30-fold IL-8 protein up-regulation in the CRC specimens in comparison to the CRA tissues. Moreover, IL-8 expression revealed a close correlation with tumor grading. Most interestingly, IL-8 up-regulation was most enhanced in synchronous and metachronous CRLM, if compared with the corresponding primary CRC tissues. Herein, an up to 80-fold IL-8 overexpression in individual metachronous metastases compared to normal tumor neighbor tissues was found. CONCLUSION: Our results strongly suggest an association between IL-8 expression, induction and progression of colorectal carcinoma and the development of colorectal liver metastases.Claudia Rubie Vilma Oliveira Frick Sandra Pfeil Mathias Wagner Otto Kollmar Berit Kopp Stefan Grber Bettina M Rau Martin K Schilling 2007World Journal of Gastroenterology2007,13,37:12
5Antenna-assisted picosecond control of nanoscale phase transition in vanadium dioxide显示文摘Nanoscale devices in which the interaction with light can be configured using external control signals hold great interest for next-generation optoelectronic circuits.Materials exhibiting a structural or electronic phase transition offer a large modulation contrast with multi-level optical switching and memory functionalities.In addition,plasmonic nanoantennas can provide an efficient enhancement mechanism for both the optically induced excitation and the readout of materials strategically positioned in their local environment.Here,we demonstrate picosecond all-optical switching of the local phase transition in plasmonic antenna-vanadium dioxide(VO_(2))hybrids,exploiting strong resonant field enhancement and selective optical pumping in plasmonic hotspots.Polarization-and wavelength-dependent pump–probe spectroscopy of multifrequency crossed antenna arrays shows that nanoscale optical switching in plasmonic hotspots does not affect neighboring antennas placed within 100 nm of the excited antennas.The antenna-assisted pumping mechanism is confirmed by numerical model calculations of the resonant,antenna-mediated local heating on a picosecond time scale.The hybrid,nanoscale excitation mechanism results in 20 times reduced switching energies and 5 times faster recovery times than a VO_(2) film without antennas,enabling fully reversible switching at over two million cycles per second and at local switching energies in the picojoule range.The hybrid solution of antennas and VO_(2) provides a conceptual framework to merge the field localization and phase-transition response,enabling precise,nanoscale optical memory functionalities.Otto L Muskens Luca Bergamini Yudong Wang Jeffrey M Gaskell Nerea Zabala CH de Groot David W Sheel Javier Aizpurua 2016Light(Science & Applications)2016,5,1:5
6Anemia and long-term outcome in adjuvant and neoadjuvant radiochemotherapy of stage Ⅱ and Ⅲ rectal adenocarcinoma:The Freiburg experience(1989-2002)显示文摘AIM:To evaluate the long-term outcome of standard5-FU based adjuvant or neoadjuvant radiochemotherapyand to identify the predictive factors,especially anemiabefore and after radiotherapy as well as hemoglobinincrease or decrease during radiotherapy.METHODS:Two hundred and eighty-six patientswith Union International Contre Cancer(UICC)stageⅡ and Ⅲ rectal adenocarcinomas,who underwentresection by conventional surgical techniques(lowanterior or abdominoperineal resection),receivedeither postoperative(n=233)or preoperative(n=53)radiochemotherapy from January 1989 until July 2002.Overall survival(OAS),cancer-specific survival(CSS),disease-free survival(DFS),local-relapse-free(LRS)and distant-relapse-free survival(DRS)were evaluatedusing Kaplan-Meier,Log-rank test and Cox's proportionalhazards as statistical methods.Multivariate analysis wasused to identify prognostic factors.Median follow-uptime was 8 years.RESULTS:Anemia before radiochemotherapy was anindependent prognostic factor for improved DFS(riskratio 0.76,P=0.04)as well as stage,grading,R status(free radial margins),type of surgery,carcinoembryonicantigen(CEA)levels,and gender.The univariate analysisrevealed that anemia was associated with impaired LRS (better local control)but with improved DFS.In contrast,hemoglobin decrease during radiotherapy was anindependent risk factor for DFS(risk ratio 1.97,P=0.04).During radiotherapy,only 30.8% of RO-resected patientssuffered from hemoglobin decrease compared to 55.6%if R1/2 resection was performed(P=0.04).The 5-yearOAS,CSS,DFS,LRS and DRS were 47.0%,60.0%,41.4%,67.2%,and 84.3%,respectively.Significantdifferences between preoperative and postoperativeradiochemotherapy were not found.CONCLUSION:Anemia before radiochemotherapyand hemoglobin decrease during radiotherapy have nopredictive value for the outcome of rectal cancer.Stage,grading,R status(free radial margins),type of surgery,CEA levels,and gender have predictive value for theoutcome of rectal cancer.Christian Weissenberger Geissler Michael Otto Florian Barke Annette Henne Karl von Plehn Georg Rein Alex Müller Christine Bartelt Susanne Henke Michael 2006World Journal of Gastroenterology2006,12,12:4
7显示文摘Otto E M 1968J Electrochem Soc1968,115,:2
8Effect of hepatic artery embolization on liver hypertrophy response in a rabbit liver VX2tumor model显示文摘BACKGROUND:Portal vein embolization not only induces hypertrophy of the non-embolized liver,but also enhances tumor growth.The latter could be prevented by embolizing the hepatic arteries supplying the tumor-bearing liver segments.This study aimed to determine the effects of transcatheter arterial embolization(TAE)on tumor volume and liver regeneration in a rabbit VX2 tumor model.METHODS:Twenty-three rabbits underwent subcapsular tumor implantation with a VX2 tumor.Two weeks after implantation,18 rabbits were used for TAE experiments,5were for sham controls.Tumor response and liver regeneration response of the embolized cranial and non-embolized caudal liver lobes were assessed by CT volumetry,liver to body weight index,and the amount of proliferating hepatocytes.RESULTS:All super-selective arterial tumor embolization procedures were performed successfully.Despite embolization,the tumor volume increased after an initial steady state.The tumor volume after embolization was smaller than that of the sham group,but this difference was not significant.Massive necrosis of the tumor,however,was seen after embolization,without damage of the surrounding liver parenchyma.There was a significant atrophy response of the tumor bearing cranial lobe after super-selective arterial embolization of the tumor with a concomitant hypertrophy response of the non-embolized,caudal lobe.This regeneration response was confirmed histologically by a significantly higher number of proliferating hepatocytes on the Ki-67 stained slides.CONCLUSIONS:Super-selective,bland arterial coil embolization causes massive necrosis of the tumor,despite increase of volume on CT scan.Atrophy of the tumor bearing liver lobe is seen after arterial embolization of the tumor with a concomitant hypertrophy response of the non-embolized lobe,despite absence of histological damage of the tumor-surrounding liver parenchyma.Krijn P van Lienden Lisette T Hoekstra Jessica D van Trigt Joris J Roelofs Otto M van Delden Thomas M van Gulik 2013Hepatobiliary & Pancreatic Diseases International2013,12,6:2
9Sampling properties of DNA sequence data in phylogenetic analysis显示文摘CUMM1NGS M P OTTO S P WAKELEY J 1995Mol Bio Evol1995,12,81:1
10Persistent immune activation in HIV-1 infection is associated with progression to AIDS显示文摘Hazenberg M D Otto S A van Benthem B H 2003AIDS2003,17,:1
11Persistent immune activation in HIV-1 infection is associated with progression to AIDS显示文摘Hazenberg M D Otto S A van Benthem B H 2003AIDS2003,17,:1
12Post- traumatic stress disorder symptoms following media exposure to tragic events: Impact of 9/11 on children at risk for anxiety disorders显示文摘Otto M W Henin A Hirshfeld- Becker D R 2007Journal of Anxiety Disorders2007,21,7:1
13Deletion analysis at the DEL- 27, APC and MTS1 loci in bladder cancer: LOH at the DEL-27locus on 5p13-12 is a prognostic marker of tumor progression 显示文摘Bohm M Kirch H Otto T 1997Int J Cancer1997,74,3:1
14Tolerance of rat liver allografts induced by short-term selective immunosuppression combining monoclonal antibody directed against CD25 and CD54with subtherapentic cyclosporine显示文摘GASSEL H J OTTO C GASSEL A M 2000Transplantation2000,69,:1
15Decrease of S100 beta protein in serum of patients with amyotrophic lateral sclerosis显示文摘Otto M Bahn E Wiltfang J 1998Neurosci Lett1998,240,3:1
16Small intestinal submucosa for pubourethral sling suspension for the treatment of stress incontinence: first histopathological results in humans显示文摘Wiedemann A Otto M 2004J Urol2004,172,1:1
17ABC transporter of staphylococci显示文摘Otto M Gotz F 2001Res Microbiol2001,152,:1
18Ac impedance analysis of bifunctinal air electrodes for metal-air batteries 显示文摘HAJIME A STEFAN M OTTO H 2000J Electrochem Soc2000,147,:1
19Comparison of cardiac structur- al and functional changes in obese otherwise healthy adults with versus without obstructive sleep apnea 显示文摘Otto M Belohlavek M Romerocorral A 2007Am J Cardiol2007,99,:1
20Discovery of recurrent KIF5B-RET fusions and other targetable alterations from clinical NSCLC specimens 显示文摘Capelletti M Lipson D Otto G 2012J Clin Oncol2012,30,15:1
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