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A totally mini-invasive approach for colorectal laparoscopic surgery

World Journal of Gastroenterology 2012年第29期18卷 3869-3874页

作者： Gabriele Anania Mirco Santini Lucia Scagliarini Alice Marzetti Laura Vedana Serafino Marino claudio gregorio Giuseppe Resta Giorgio Cavallesco Department of Surgery Arcispedale S.AnnaMedical University of Ferrara44121 FerraraItaly

AIM:To study the short-term outcome of patients treated with laparoscopic right colectomy and how intracorporeal anastomosis has improved the ***:We retrospectively examined all patients affected by colorectal cancer who underwent a laparoscopic right colectomy between January 2006 and December 2010 in our *** evaluation criteria were:diagnosis of colorectal carcinoma at presurgical biopsy,elective surgery,and the same *** excluded:emergency surgery,conversions from laparotomic colectomy,and other *** endpoints we examined were:surgical time,number of lymph nodes removed,length of stay(removal of nasogastric tube,bowel movements,gas evacuation,solid and liquid feeding,hospitalization),and major ***-two patients were divided into two groups:intracorporeal anastomosis(39 patients)and extracorporeal anastomosis(33 patients).RESULTS:Significant differences were observed between intracorporeal vs extracorporeal anastomosis,respectively,for surgical times(186.8 min vs 184.1 min,P < 0.001),time to resumption of gas evacuation(3 d vs 3.5 d,P < 0.001),days until resumption of bowel movements(3.8 d vs 4.9 d,P < 0.001),days until resumption of liquid diet(3.5 d vs 4.5 d,P < 0.001),days until resuming a solid diet(4.6 d vs 5.7 d,P < 0.001),and total hospitalization duration(7.4 d vs 8.5 d,P < 0.001).In the intracorporeal group,on average,19 positive lymph nodes were removed;in the extracorporeal group,on average,14 were removed P < 0.001).Thus,intracorporeal anastomosis for right laparoscopic colectomy improved patient outcome by providing faster recovery of nutrition,faster recovery of intestinal function,and shorter hospitalization than extracorporeal ***:Short-term outcomes favor intracorporeal anastomosis,confirming that a less traumatic surgical approach improves patient outcome.

关键词：手术方法结直肠癌腹腔镜体外循环评价标准液体输送功能恢复大肠癌

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Tissue microarray-chip featuring computerized immunophenotypical characterization more accurately subtypes ampullary adenocarcinoma than routine histology

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World Journal of Gastroenterology 2020年第43期26卷 6822-6836页

作者： Matteo Palmeri Niccola Funel gregorio Di Franco Niccolo Furbetta Desiree Gianardi Simone Guadagni Matteo Bianchini Luca E Pollina claudio Ricci Marco Del Chiaro Giulio Di Candio Luca Morelli General Surgery Unit Department of Translational Research and New Technologies in Medicine and SurgeryUniversity of PisaPisa 56124Italy Division of Surgical Pathology University-Hospital of PisaPisa 56124Italy Department of Surgical MedicalMolecular Pathology and Critical AreaUniversity of PisaPisa 56124Italy Department of Surgery University of ColoradoDenverCO 80045United States

BACKGROUND Ampullary adenocarcinomas(AACs)are heterogeneous tumors currently classified into three important sub-classes(SC):Intestinal(INT),Pancreato-Biliary(PB)and Mixed-Type(MT).The different subgroups have similar clinical presentation and are treated by pancreatoduodenectomy with curative ***,they respond differently to chemotherapy and have different prognostic *** SC are often difficult to identify with conventional histology *** clinical outcome of all three remains unclear,particularly for *** To identify two main subtypes of AACs,using an immunohistochemical(IHC)score based on CDX2,CK7 and *** Tissue samples from 21 patients who had undergone resection of AAC were classified by HE histology and IHC expression of CDX2,CK7 and CK *** IHC score was obtained for each marker by counting the number of positive cells(0=no stained cells;150%)and their intensity(1=weak;2=moderate and 3=strong).A global score(GS)was then obtained by summation of the IHC scores of each *** MT tumors were grouped either with the INT or PB group based on the predominant immuno-molecular phenotype,obtaining only two AACs *** overall survival in INT and PB patients was obtained by Kaplan-Meier *** Histological parameters defined the AACs subtypes as follows:15%INT,45%PB and 40%*** IHC expression and the GS,75%and 25%of MT samples were assigned to either the INT or the PB *** mean value of the GS was 9.5(range 4-16).All INT samples had a GS above the average,distinct from the PB samples which had a GS score significantly below the average(P=0.0011).The INT samples were identified by high expression of CDX2 and CK20,whereas PB samples exhibited high expression of CK7 and no expression of CK20(P=0.0008).The INT group had a statistically significant higher overall survival than in the PB group(85.7 mo vs 20.3 mo,HR:8.39;95%CI:1.38 to 18.90;P=0.0152).CONCLUSION The combination of histopathological a

关键词： Ampullary adenocarcinoma Histo-molecular phenotype Prognostic CK7 CK20 CDX2

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Detailing the ultrastructure’s increase of prion protein in pancreatic adenocarcinoma

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World Journal of Gastroenterology 2021年第42期27卷 7324-7339页

作者： Matteo Bianchini Maria Anita Giambelluca Maria Concetta Scavuzzo gregorio Di Franco Simone Guadagni Matteo Palmeri NiccolòFurbetta Desirée Gianardi Niccola Funel claudio Ricci Raffaele Gaeta Luca Emanuele Pollina Alfredo Falcone Caterina Vivaldi Giulio Di Candio Francesca Biagioni Carla Letizia Busceti Luca Morelli Francesco Fornai General Surgery Unit Department of Translational Research and New Technologies in Medicine and SurgeryUniversity of PisaPisa 56124Italy Human Anatomy Department of Translational Research and New Technologies in Medicine and SurgeryUniversity of PisaPisa 56124Italy Division of Surgical Pathology Department of SurgicalMedicalMolecular Pathology and Critical AreaUniversity of PisaPisa 56124Italy Division of Medical Oncology Department of Translational Research and New Technologies in Medicine and SurgeryUniversity of PisaPisa 56124Italy IRCCS Neuromed Istituto Neurologico MediterraneoPozzilli 86077Italy EndoCAS(Center for Computer Assisted Surgery) University of PisaPisa 56124Italy

BACKGROUND Recent evidences have shown a relationship between prion protein(PrPc)expression and pancreatic ductal adenocarcinoma(PDAC).Indeed,PrPc could be one of the markers explaining the aggressiveness of this ***,studies investigating the specific compartmentalization of increased PrPc expression within PDAC cells are lacking,as well as a correlation between ultrastructural evidence,ultrastructural morphometry of PrPc protein and clinical *** data,as well as the quantitative stoichiometry of this protein detected by immuno-gold,provide a significant advancement in understanding the biology of disease and the outcome of surgical *** To analyze quantitative stoichiometry and compartmentalization of PrPc in PDAC cells and to correlate its presence with prognostic data METHODS Between June 2018 and December 2020,samples from pancreatic tissues of 45 patients treated with pancreatic resection for a preoperative suspicion of PDAC at our Institution were *** the frozen section excluded a PDAC diagnosis,or the nodules were too small for adequate sampling,patients were ruled out from the present *** blotting was used to detect,quantify and compare the expression of PrPc in PDAC and control tissues,such as those of non-affected neighboring pancreatic tissue of the same *** quantify the increase of PrPc and to detect the subcellular compartmentalization of PrPc within PDAC cells,immuno-gold stoichiometry within specific cell compartments was analyzed with electron ***,an analysis of quantitative PrPc expression according to prognostic data,such as cancer stage,recurrence of the disease at 12 mo after surgery and recurrence during adjuvant chemotherapy was *** The amount of PrPc within specimen from 38 out of 45 patients was determined by semi-quantitative analysis by using Western blotting,which indicates that PrPc increases almost three-fold in tumor pancreatic tissue compared with healthy panc

关键词： Pancreatic ductal adenocarcinoma Prion protein Western blotting Electron microscopy Cellular compartmentalization Neuroinvasion

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Ab Initio Study of Aluminum-Phosphorus Co-doped Graphene

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Journal of Physical Science and Application 2017年第1期7卷 1-7页

作者： Victor Eduardo Comparan Padilla Maria Teresa Romero de la Cruz Carlos Eduardo Rodriguez Garcia ReyesGarcia Diaz gregorio Hernandez Cocoletzi Facultad de Ciencias Quimicas Universidad Autonoma de Coahuila Blvd. Venustiano Carranza C.P. 25280 Saltillo CoahuilaMexico Facultada de Ciencias Fisico Matematica Universidad Autonoma de Coahuila Blvd. Venustiano Carranza C.P. 25280 SaltilloCoahuila Mexico Instituto de Fisica Luis Rivera Terrazas Benemerita Universidad Autonoma de Puebla Av. San Claudio y Blvd. 18 Sur C.P.72570 Puebla Puebla Mexico

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