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1747篇 您的检索式:作者名="Franks G"
    题名 作者 年代 出处 被引量
1Double-balloon-enteroscopy-based endoscopic retrograde cholangiopancreatography in post-surgical patients显示文摘AIM: To evaluate double balloon enteroscopy (DBE) in post-surgical patients to perform endoscopic retrograde cholangiopancreatography (ERCP) and interventions. METHODS: In 37 post-surgical patients, a stepwise approach was performed to reach normal papilla or enteral anastomoses of the biliary tract/pancreas. When conventional endoscopy failed, DBE-based ERCP was performed and standard parameters for DBE, ERCP and interventions were recorded. RESULTS: Push-enteroscopy (overall, 16 procedures) reached enteral anastomoses only in six out of 37 post-surgical patients (16.2%). DBE achieved a high rate of luminal access to the biliary tract in 23 of the remaining 31 patients (74.1%) and to the pancreatic duct (three patients). Among all DBE-based ERCPs (86 procedures), 21/23 patients (91.3%) were successfully treated. Interventions included ostium incision or papillotomy in 6/23 (26%) and 7/23 patients (30.4%), respectively. Biliary endoprosthesis insertion and regular exchange was achieved in 17/23 (73.9%) and 7/23 patients (30.4%), respectively. Furthermore, bile duct stone extraction as well as ostium and papillary dilation were performed in 5/23 (21.7%) and 3/23 patients (13.0%), respectively. Complications during DBE-based procedures were bleeding (1.1%), perforation (2.3%) and pancreatitis (2.3%), and minor complications occurred in up to 19.1%. CONCLUSION: The appropriate use of DBE yields a high rate of luminal access to papilla or enteral anastomoses in more than two-thirds of post-surgical patients, allowing important successful endoscopic therapeutic interventions.Martin Raithel Harald Dormann Andreas Naegel Frank Boxberger Eckhart G Hahn Markus F Neurath Juergen Maiss 2011World Journal of Gastroenterology2011,17,18:9
2报告随机对照试验的CONSORT声明修订版:说明与详述(二)显示文摘Douglas G. Altman Kenneth F. Schulz David Moher Matthias Egger Frank Davidoff Diana Elbourne Peter C. Gtzsch Thomas Lang 刘雪梅 2005中国循证医学杂志2005,5,10:8
3Pain sensation in pancreatic diseases is not uniform: The different facets of pancreatic pain显示文摘AIM: To systematically characterize specific pain patterns in the most frequent pancreatic diseases.METHODS: Pain in patients with chronic pancreatitis(n = 314), pancreatic cancer(n = 469), and other pancreatic tumors(n = 249) including mucinous(n = 20) and serous cystadenoma(n = 31), invasive(n = 37) and non-invasive intraductal papillary mucinous neoplasia(IPMN; n = 48), low stage(n = 18) and high stage neuroendocrine neoplasia(n = 44), and ampullary cancer(n = 51) was registered and correlated with clinicopathological data. Survival times were estimated by the Kaplan-Meier method. Patients alive at the follow-up time were censored. Survival curves were compared statistically using the log-rank test.RESULTS: Forty-nine point one percent of pancreatic cancer patients revealed no pain, whereas in chronic pancreatitis only 18.3% were pain free. In contrary, moderate/severe pain was registered in 15.1% in pancreatic cancer patients that was increased in chronic pancreatitis with up to 34.2%. Serous cystadenoma was asymptomatic in most cases(58.1%), whereas 78.9% of all mucinous cystadenoma patients suffered pain. In neuroendocrine neoplasia pain was not a key clinical symptom since 64% of low stage neuroendocrine neoplasia and 59% of high stage neuroendocrine neoplasia patients were pain free. Cancer localization in the pancreatic body and patients with malignant pancreatic neoplasms were associated with more severe pain. Tumor grading and stage did not show any impact on pain. Only in pancreatic cancer, pain was directly associated with impaired survival.CONCLUSION: Pancreatic pain depicts different patterns of abdominal pain sensation according to the respective pancreatic disorder and does not allow a unification of the term pancreatic pain.Jan G D'Haese Mark Hartel Ihsan Ekin Demir Ulf Hinz Frank Bergmann Markus W Büchler Helmut Friess Güralp O Ceyhan 2014World Journal of Gastroenterology2014,20,27:8
4报告随机对照试验的CONSORT声明修订版:说明与详述(四)显示文摘Douglas G. Altman1, Kenneth F. Schulz2, David Moher3, Matthias Egger4, Frank Davidoff5, Diana Elbourne6, Peter C. Gtzsch7, Thomas Lang8 for the CONSORTDouglas G. Altman Kenneth F. Schulz David Moher Matthias Egger Frank Davidoff Diana Elbourne Peter C. Gtzsch Thomas Lang 刘雪梅 2005中国循证医学杂志2005,5,12:7
5Correlation analysis of dual-energy CT iodine maps with quantitative pulmonary perfusion MRI显示文摘AIM:To correlate dual-energy computed tomography(DECT) pulmonary angiography derived iodine maps with parameter maps of quantitative pulmonary perfusion magnetic resonance imaging(MRI).METHODS:Eighteen patients with pulmonary perfusion defects detected on DECT derived iodine maps were included in this prospective study and additionally underwent time-resolved contrast-enhanced pulmonary MRI [dynamic contrast enhanced(DCE)-MRI].DCE-MRI data were quantitatively analyzed using a pixel-by-pixel deconvolution analysis calculating regional pulmonary blood flow(PBF),pulmonary blood volume(PBV) and mean transit time(MTT) in visually normal lung parenchyma and perfusion defects.Perfusion parameterswere correlated to mean attenuation values of normal lung and perfusion defects on DECT iodine maps.Two readers rated the concordance of perfusion defects in a visual analysis using a 5-point Likert-scale(1 = no correlation,5 = excellent correlation).RESULTS:In visually normal pulmonary tissue mean DECT and MRI values were:22.6 ± 8.3 Hounsfield units(HU);PBF:58.8 ± 36.0 mL/100 mL per minute;PBV:16.6 ± 8.5 mL;MTT:17.1 ± 10.3 s.In areas with restricted perfusion mean DECT and MRI values were:4.0 ± 3.9 HU;PBF:10.3 ± 5.5 mL/100 mL per minute,PBV:5 ± 4 mL,MTT:21.6 ± 14.0 s.The differences between visually normal parenchyma and areas of restricted perfusion were statistically significant for PBF,PBV and DECT(P < 0.0001).No linear correlation was found between MRI perfusion parameters and attenuation values of DECT iodine maps(PBF:r = 0.35,P = 0.15;PBV:r = 0.34,P = 0.16;MTT:r = 0.41,P = 0.08).Visual analysis revealed a moderate correlation between perfusion defects on DECT iodine maps and the parameter maps of DCE-MRI(mean score 3.6,k 0.45).CONCLUSION:There is a moderate visual but not statistically significant correlation between DECT iodine maps and perfusion parameter maps of DCE-MRI.Jan Hansmann Paul Apfaltrer Frank G Zoellner Thomas Henzler Mathias Meyer Gerald Weisser Stefan O Schoenberg Ulrike I Attenberger 2013World Journal of Radiology2013,5,5:6
6A dual positional specific lipoxygenase functions in the generation of flavor compounds during climacteric ripening of apple显示文摘Lipoxygenase(LOX)is an important contributor to the formation of aroma-active C6 aldehydes in apple(Malus×domestica)fruit upon tissue disruption but little is known about its role in autonomously produced aroma volatiles from intact tissue.We explored the expression of 22 putative LOX genes in apple throughout ripening,but only six LOXs were expressed in a ripening-dependent manner.Recombinant LOX1:Md:1a,LOX1:Md:1c,LOX2:Md:2a and LOX2:Md:2b proteins showed 13/9-LOX,9-LOX,13/9-LOX and 13-LOX activity with linoleic acid,respectively.While products of LOX1:Md:1c and LOX2:Md:2b were S-configured,LOX1:Md:1a and LOX2:Md:2a formed 13(R)-hydroperoxides as major products.Site-directed mutagenesis of Gly567 to an alanine converted the dual positional specific LOX1:Md:1a to an enzyme with a high specificity for 9(S)-hydroperoxide formation.The high expression level of the corresponding MdLOX1a gene in stored apple fruit,the genetic association with a quantitative trait locus for fruit ester and the remarkable agreement in regio-and stereoselectivity of the LOX1:Md:1a reaction with the overall LOX activity found in mature apple fruits,suggest a major physiological function of LOX1:Md:1a during climacteric ripening of apples.While LOX1:Md:1c,LOX2:Md:2a and LOX2:Md:2b may contribute to aldehyde production in immature fruit upon cell disruption our results furnish additional evidence that LOX1:Md:1a probably regulates the availability of precursors for ester production in intact fruit tissue.Doreen Schiller Carolina Contreras Jörg Vogt Frank Dunemann Bruno G Defilippi Randolph Beaudry Wilfried Schwab 2015Horticulture Research2015,2,1:6
7报告随机对照试验的CONSORT声明修订版:说明与详述(一)显示文摘Douglas G. Altman Kenneth F. Schulz David Moher Matthias Egger Frank Davidoff Diana Elbourne Peter C. Gφtzsch Thomas Lang 刘雪梅 秦莉 林东涛 邓长安 李静 吴泰相 李幼平 2006中国实用内科杂志:临床前沿版2006,26,2:6
8Diagnostic accuracy of tests for Helicobacter pylori in an Alaska Native population显示文摘AIM:To evaluate the accuracy of two non-invasivetests in a population of Alaska Native persons. Highrates of Helico bacter pylori(H. pylori) infection,H. pylori treatment failure,and gastric cancer in this population necessitate documentation of infection status atmultiple time points over a patient's life.METHODS:In 280 patients undergoing endoscopy,H. pylori was diagnosed by culture,histology,rapidurease test,13C urea breath test(UBT) ,and immuno-globulin G antibodies to H. pylori in serum. The performances of 13C-UBT and antibody test were compared to a gold standard defined by a positive H. pylori testby culture or,in case of a negative culture result,bypositive histology and a positive rapid urease test.RESULTS:The sensitivity and specificity of the 13C-UBT were 93% and 88%,respectively,relative to thegold standard. The antibody test had an equivalents ensitivity of 93% with a reduced specificity of 68%.The false positive results for the antibody test were as-sociated with previous treatment for an H. pylori infection [relative risk(RR) = 2.8]. High levels of antibodiesto H. pylori were associated with chronic gastritis and male gender,while high scores in the 13C-UBT testwere associated with older age and with the H. pyloribacteria load on histological examination(RR = 4.4) .CONCLUSION:The 13C-UBT out performed the anti-body test for H. pylori and could be used when a non-invasive test is clinically necessary to document treatment out come or when monitoring for reinfection.Dana L Bruden Michael G Bruce Karen M Miernyk Julie Morris Debby Hurlburt Thomas W Hennessy Helen Peters Frank Sacco Alan J Parkinson Brian J McMahon 2011World Journal of Gastroenterology2011,17,42:3
9Cholangiocarcinoma, gone without the Wnt?显示文摘Cholangiocarcinoma(CCA) is a relatively rare malignancy of the intra- or extra-hepatic bile ducts that is classified according to its anatomical localization as intrahepatic, perihilar or distal. Overall, CCA has a dismal prognosis due to typical presentation at an advanced irresectable stage, lack of effective non-surgical treatments, and a high rate of disease recurrence. CCA frequently arises on a background of chronic liver inflammation and cholestasis. Chronic inflammation is accompanied by enhanced cell turnover with generation of additional inflammatory stimuli, and a microenvironment rich in pro-inflammatory mediators and proliferative factors that enable accumulation of mutations, transformation and expansion of mutated cells. A recent study by Boulter et al implicates the Wnt signaling cascade in cholangiocarcinogenesis. Wnt ligands Wnt7 B and Wnt10 A were found to be highly overexpressed in human CCA tissue. Wnt7 B protein was present throughout the tumor stroma, and often co-localized with a subset of CD68+ macrophages. To address in a direct manner whether Wnt signaling is engaged in development of CCA, Boulter et al explored the Wnt signaling pathway in an experimental model that recapitulates the multi-stage progression of human CCA.Wnt ligands found to be elevated in human CCA were also upregulated during the course of CCA development following thioacetamide treatment. Wnt10 a increased during the(pre-cancerous) regenerative phase, while Wnt7 b induction paralleled tumor growth. Along with upregulation of target genes, the findings demonstrate that the canonical Wnt pathway is progressively activated during cholangio-carcinogenesis. Macrophage depletion,eliminating a major source of Wnt7 b, prevented activation of the canonical Wnt cascade, and resulted in reduced number and volume of tumors in this model. Moreover,specific inhibitors of the canonical Wnt pathway(ICG-001 and C-59) caused reduction of tumor area and number,in xenograft and thioacetamide models of CCA. The aggregated findings show that experimental, and presumably human CCA, is a Wnt-driven tumor. Modulation of Wnt signaling, alone or in combination with surgicalor chemotherapy approaches, holds promise in the management of this fatal malignancy.Anne T R Noll Thorsten Cramer Steven W M Olde Damink Frank G Schaap 2016World Journal of Hepatology2016,8,26:3
10Pulsed light for food decontamination: a review显示文摘Vicente M. Gómez-López Peter Ragaert Johan Debevere Frank Devlieghere 2007Trends in Food Science & Technology2007,,9:2
11报告随机对照试验的CONSORT声明修订版:说明与详述(八)显示文摘Douglas G. Altman Kenneth F. Schulz David Moher Matthias Egger Frank Davidoff Diana Elbourne Peter C. Gфtzsche Thomas Lang for the CONSORT Group 杜亮 黄楷森 何顶秀 张小利 秦文霞 袁文明 2006中国循证医学杂志2006,6,4:2
12Age-related macular degeneration显示文摘Laurence S Lim Paul Mitchell Johanna M Seddon Frank G Holz Tien Y Wong 2012The Lancet . 2012 (9827)2012,,9827:2
13Anti-inflammatory and analgesic activities of Melanthera scandens显示文摘Objective:To evaluate the anti-inflammatory and analgesic activities of leaf extract of Melanthera scandens(M.scandens).Methods:The crude leaf extract(39-111 mg/kg)of M.scandens was investigated for anti-inflammatory and analgesic activities using various experimental models.The anti-inflammatory activity was investigated using carragenin,egg-albumin induced oedema models,while acetic acid,formalin-induced paw licking and thermal-induced pain models were used to evaluate the antinociceptive property.Results:The extract caused a significant(P<0.05-0.001)dose-dependent reduction of inflammation and pains induced by different agents used.Conclusions:The leaf extract possesses anti-inflammatory and analgesic effects which may be mediated through the phytochemical constituents of the plant.Jude E Okokon Anwanga E Udoh Samuel G Frank Louis U Amazu 2012Asian Pacific Journal of Tropical Biomedicine2012,2,2:2
14Corrigendum to “Insights into the epigenetic mechanisms controlling pancreatic carcinogenesis” [Cancer Lett. 328 (2) (2012) 212–221]显示文摘Angela L. McCleary-Wheeler Gwen A. Lomberk Frank U. Weiss Günter Schneider Muller Fabbri Tara L. Poshusta Nelson J. Dusetti Sandra Baumgart Juan L. Iovanna Volker Ellenrieder Raul Urrutia Martin E. Fernandez-Zapico 2013Cancer Letters2013,,1:2
15Human enamel thickness and ENAM polymorphism显示文摘The tooth enamel development gene, enamelin(ENAM), showed evidence of positive selection during a genome-wide scan of human and primate DNA for signs of adaptive evolution. The current study examined the hypothesis that a single-nucleotide polymorphism(SNP) C14625T(rs7671281) in the ENAM gene identified in the genome-wide scan is associated with a change in enamel phenotype. African Americans were selected as the target population, as they have been reported to have a target SNP frequency of approximately 50%, whereas non-Africans are predicted to have a 96% SNP frequency. Digital radiographs and DNA samples from 244 teeth in 133 subjects were analysed, and enamel thickness was assessed in relation to SNP status,controlling for age, sex, tooth number and crown length. Crown length was found to increase with molar number, and females were found to have thicker enamel. Teeth with larger crowns also had thicker enamel, and older subjects had thinner enamel.Linear regression and generalized estimating equations were used to investigate the relationship between enamel thickness of the mandibular molars and ENAM SNP status; enamel in subjects with the derived allele was significantly thinner(P = 0.040)when the results were controlled for sex, age, tooth number and crown length. The derived allele demonstrated a recessive effect on the phenotype. The data indicate that thinner dental enamel is associated with the derived ENAM genotype. This is the first direct evidence of a dental gene implicated in human adaptive evolution as having a phenotypic effect on an oral structure.Diane M Daubert Joanna L Kelley Yuriy G Udod Carolina Habor Chris G Kleist Ilona K Furman Igor N Tikonov Willie J Swanson Frank A Roberts 2016International Journal of Oral Science2016,8,2:2
16Role of preoperative endoscopic ultrasound-guided fine-needle tattooing of a pancreatic head insulinoma显示文摘Although insulinomas are rare, they are the most com-mon pancreatic neuroendocrine tumor, with an inci-dence of four cases per million population. Insulinomas are generally benign indolent intrapancreatic tumors. Surgical resection remains the main option for treat-ment. However, up to 67% of a pancreatic head insu-linomas are nonpalpable, thus surgical resection of the nonplapable insulinoma in this area could become prob-lematic resulting in prolonged surgical time, increased risk of pancreatic duct injury and need for pancreati-coduodenectomy. Endoscopic ultrasound-guided fine- needle tattooing(EUS-FNT), has been shown to have a crucial role for localization of pancreatic body and tail lesions, facilitating laparoscopic distal pancreatectomyand helping surgeons identify the location of the tumor. EUS-FNT might have a role for preoperative localiza-tion of pancreatic head insulinomas which are likely to be nonpalpable. We report a case of preoperative EUS-FNT for localization of a nonplapable pancreatic head insulinoma. This report demonstrates that EUS-FNT of pancreatic head insulinomas may facilitate surgical resection, reduce operative time and decrease surgical complications.Pornchai Leelasinjaroen Wuttiporn Manatsathit Richard Berri Mohammed Barawi Frank G Gress 2014World Journal of Gastrointestinal Endoscopy2014,6,10:2
17Innovation,regional knowledge spillovers and R&D cooperation显示文摘Fritsch M Franke G 2004Research Policy2004,33,2:1
18ST-segment resolution and prognosis after facilitated versus primary percutaneous coronary intervention in acute myocardial infarction:a meta-analysis显示文摘Eitel I Franke A Schuler G 2010Clin Res Cardiol2010,99,1:1
19Who buys and who sells options:the role of options in an economy with background risk显示文摘Franke G 1998Journal of Economic Theory1998,82,:1
20Costs of accidents and in- juries to the construction industry显示文摘Everett J G Peter B Frank J 1996Journal of Construc- tion Engineering and Management1996,122,:1
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