维普中文期刊产品整合服务
940篇 您的检索式:作者名="Gregory G"
    题名 作者 年代 出处 被引量
1Computed tomography-based diagnostics might be insufficient in the determination of pancreatic cancer unresectability显示文摘AIM: To inquire into a question of an overestimation of arterial involvement in patients with pancreatic cancer (PC). METHODS: Radiology data were compared with the findings from 51 standard, 58 extended and 17 total pancreaticoduodenectomies; 9 distal resections with celiac artery (CA) excision; and 28 palliations for PC. The survival of 11 patients with controversial computed tomography (CT) and endoscopic ultrasound data with regard to arterial invasion, after R0/R1 procedures (false-positive CT results, Group A), was compared to survival after eight R2 resections (false-negative CT results, Group B) and after 12 bypass procedures for locally advanced cancer (true-positive CT results, Group C).RESULTS: In all of the cases in group A, operative exploration revealed no arterial invasion, which was predicted by CT. The one-year survival in Group A was 88.9%, and the two-year survival was 26.7%, with a median follow-up of 22 mo. One-year survival was not attained in groups B and C, with a significant difference in survival (P a-b = 0.0029, P b-c = 0.003).CONCLUSION: Arterial encasement on CT does not necessarily indicate arterial invasion. Whenever PC is considered unresectable, endoUS should be used. In patients with controversial CT an EUS data for peripan-creatic arteries involvement radical resection might be possible, providing survival benefits as compared to R2-resections or palliative surgery.Vyacheslav I Egorov Roman V Petrov Elena N Solodinina Gregory G Karmazanovsky Natalia S Starostina Natalia A Kuruschkina 2013World Journal of Gastrointestinal Surgery2013,5,4:4
2The role of endoscopy in the management of hereditary diffuse gastric cancer syndrome显示文摘Hereditary diffuse gastric cancer(HDGC) syndrome is an inherited cancer risk syndrome associated with path-ogenic germline CDH1 variants. Given the high risk for developing diffuse gastric cancer, CDH1 carriers are recommended to undergo prophylactic total gastrectomy for cancer risk reduction. Current guidelines recommend upper endoscopy in CDH1 carriers prior to surgery and then annually for individuals deferring prophylactic total gastrectomy.Management of individuals from HDGC families without CDH1 pathogenic variants remains less clear, and management of families with CDH1 pathogenic variants in the absence of a family history of gastric cancer is particularly problematic at present. Despite adherence to surveillance protocols, endoscopic detection of cancer foci in HDGC is suboptimal and imperfect for facilitating decision-making. Alternative endoscopic modalities, such as chromoendoscopy,endoscopic ultrasound, and other non-white light methods have been utilized,but are of limited utility to further improve cancer detection and risk stratification in HDGC. Herein, we review what is known and what remains unclear about endoscopic surveillance for HDGC, among individuals with and without germline CDH1 pathogenic variants. Ultimately, the use of endoscopy in the management of HDGC remains a challenging arena, but one in which further research to improve surveillance is crucial.Shria Kumar Jessica M Long Gregory G Ginsberg Bryson W Katona 2019World Journal of Gastroenterology2019,25,23:2
3Serotonin type 3 receptor subunit gene polymorphisms associated with psychosomatic symptoms in irritable bowel syndrome:A multicenter retrospective study显示文摘BACKGROUND Single-nucleotide polymorphisms(SNPs)of the serotonin type 3 receptor subunit(HTR3)genes have been associated with psychosomatic symptoms,but it is not clear whether these associations exist in irritable bowel syndrome(IBS).AIM To assess the association of HTR3 polymorphisms with depressive,anxiety,and somatization symptoms in individuals with IBS.METHODS In this retrospective study,623 participants with IBS were recruited from five specialty centers in Germany,Sweden,the United States,the United Kingdom,and Ireland.Depressive,anxiety,and somatization symptoms and sociodemographic characteristics were collected.Four functional SNPs—HTR3A c.-42C>T,HTR3B c.386A>C,HTR3C c.489C>A,and HTR3E c.*76G>A—were genotyped and analyzed using the dominant and recessive models.We also performed separate analyses for sex and IBS subtypes.SNP scores were calculated as the number of minor alleles of the SNPs above.The impact of HTR3C c.489C>A was tested by radioligand-binding and calcium influx assays.RESULTS Depressive and anxiety symptoms significantly worsened with increasing numbers of minor HTR3C c.489C>A alleles in the dominant model(F_(depressive)=7.475,P_(depressive)=0.006;F_(anxiety)=6.535,P_(anxiety)=0.011).A higher SNP score(range 0-6)was linked to a worsened depressive symptoms score(F=7.710,P-linear trend=0.006)in IBS.The potential relevance of the HTR3C SNP was corroborated,showing changes in the expression level of 5-HT3AC variant receptors.CONCLUSION We have provided the first evidence that HTR3C c.489C>A is involved in depressive and anxiety symptoms in individuals with IBS.The SNP score indicated that an increasing number of minor alleles is linked to the worsening of depressive symptoms in IBS.Sabrina Berens Yuanjun Dong Nikola Fritz Jutta Walstab Mauro D'Amato Tenghao Zheng Verena Wahl Felix Boekstegers Justo Lorenzo Bermejo Cristina Martinez Stefanie Schmitteckert Egbert Clevers Felicitas Engel Annika Gauss Wolfgang Herzog Robin Spiller Miriam Goebel-Stengel Hubert Mönnikes Viola Andresen Frieling Thomas Jutta Keller Christian Pehl Christoph Stein-Thöringer Gerard Clarke Timothy G Dinan Eamonn M Quigley Gregory Sayuk Magnus Simrén Jonas Tesarz Gudrun Rappold Lukas van Oudenhove Rainer Schaefert Beate Niesler 2022World Journal of Gastroenterology2022,28,21:2
4Advances in the Treatment and Outcome of Brainstem Cavernous Malformation Surgery: A Single-Center Case Series of 300 Surgically Treated Patients显示文摘Adib A Abla Gregory P Lekovic Jay D Turner Jean G de Oliveira Randall Porter Robert F Spetzler 2011Neurosurgery2011,,2:2
5Thermal and microstructural characterization of a novel ductile cast iron modified by aluminum addition显示文摘In high-temperature applications,like exhaust manifolds,cast irons with a ferritic matrix are mostly used.However,the increasing demand for higher-temperature applications has led manufacturers to use additional expensive materials such as stainless steels and Ni-resist austenitic ductile cast irons.Thus,in order to meet the demand while using low-cost materials,new alloys with improved high-temperature strength and oxidation resistance must be developed.In this study,thermodynamic calculations with Thermo-Calc software were applied to study a novel ductile cast iron with a composition of 3.5wt%C,4wt%Si,1wt%Nb,0‒4wt%Al.The designed compositions were cast,and thermal analysis and microstructural characterization were performed to validate the calculations.The lowest critical temperature of austenite to pearlite eutectoid transformation,i.e.,A1,was calculated,and the solidification sequence was determined.Both calculations and experimental data revealed the importance of aluminum addition,as the A1 increased by increasing the aluminum content in the alloys,indicating the possibility of utilizing the alloys at higher temperature.The experimental data validated the transformation temperature during solidification and at the solid state and confirmed the equilibrium phases at room temperature as ferrite,graphite,and MC-type carbides.Gülsah Aktas Celik Maria-Ioanna TTzini Seyda Polat SHakan Atapek Gregory NHaidemenopoulos 2020International Journal of Minerals,Metallurgy and Materials2020,27,2:2
6Formation velocity and density-The diagnostic basis for stratigraphic traps 显示文摘Gardner G H F Gardner L W Gregory A R 1974Geophysics1974,39,6:1
7Creatine Supplementation and Exercise Performance:An Update显示文摘G GREGORY HAFF 1998J Am College Nutr1998,,17:1
8Acceptable practices in Ontario's forests: differences between the public and forestry professionals显示文摘WAGNER R G FLYNN J GREGORY R 1998New For1998,16,:1
9No Significant Association of 14 Candidate Genes With Schizophrenia in a Large European Ancestry Sample: Implications for Psychiatric Genetics显示文摘Sanders Alan R Duan Jubao Levinson Douglas F Shi Jianxin He Deli Hou Cuiping Burrell Gregory J Rice John P Nertney Deborah A Olincy Ann Rozic Pablo Vinogradov Sophia Buccola Nancy G Mowry Bryan J Freedman Robert Amin Farooq Black Donald W 2008The American Journal of Psychiatry2008,,4:1
10The P21 inhibitor of cyclyin dependent kinases control DNA replication by interaction with PCAN 显示文摘SHOU W GREGORY G H DARID S 1994Nature1994,369,:1
11The Micropro-cessor complex mediates the genesis of microRNAs显示文摘Gregory R I Yan K P Amuthan G 2004Na-ture2004,432,7014:1
12Aging effect on the reflectivity measurements of polychloroprene matrices containing carbon black and carbonyl-iron powder显示文摘Pinho M S Gregori M L Nunes R C R Soares B G 2001Polymer Degradation and Stability2001,73,:1
13Updated Clinical Classification of Pulmonary Hypertension显示文摘Gérald Simonneau Ivan M. Robbins Maurice Beghetti Richard N. Channick Marion Delcroix Christopher P. Denton C. Gregory Elliott Sean P. Gaine Mark T. Gladwin Zhi-Cheng Jing Michael J. Krowka David Langleben Norifumi Nakanishi Rogério Souza 2009Journal of the American College of Cardiology2009,,1:1
14High-temperature mo-lecular magnets based on cyanovanadate buildingblocks: spontaneous magnetization at 230K显示文摘William R E Gregory S G 1995Sci-ence1995,268,:1
15Risk of renal and colonic neo- plasms and spontaneous pneumothorax in the Birt-Hogg-Dube syndrome 显示文摘Berton Z Gregory A Gladys G 2002Cancer Epidemiol Biomarkers Prey2002,11,4:1
16Surfactant adsorbed layer structure at solid/solution interfaces: impact and implications of AFM imaging studies显示文摘GREGORY G W 2000Current Opinion in Colloid & Interface Science2000,5,1:1
17Formation velocity and density: the diagnostic basics for stratigraphic traps 显示文摘Gardner G H F Gardner L W Gregory A R 1974Geophysics1974,39,:1
18Automated wet feeding of weaner pig versus conventional dry feeding:effects on growth rate and food consumption显示文摘Partidge G G Fisher J Gregory H 1992Anim Prod1992,54,:1
19Combined cathodic arc/unbalanced magnetron grown CrN/NbN superlattice coatings for applications in the cutlery industry显示文摘HOVSEPIAN P EH MEDLOCK A GREGORY G 2000Surface and Coatings Technology2000,,:1
20Cerebral blood flow and neuropsychological asymmetries in unilateral stroke显示文摘GREGORY G BROWN JAMES R 1991Stroke1991,22,:1
返回顶部 每页显示:
共47页 首页 上一页 第1页 下一页 末页 /47 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费