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Träfflista för sökning "WFRF:(Valente Giorgio) ;pers:(Arnelo Urban)"

Sökning: WFRF:(Valente Giorgio) > Arnelo Urban

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1.
  • Crippa, Stefano, et al. (författare)
  • A tug-of-war in intraductal papillary mucinous neoplasms management : Comparison between 2017 International and 2018 European guidelines
  • 2021
  • Ingår i: Digestive and Liver Disease. - : Elsevier. - 1590-8658 .- 1878-3562. ; 53:8, s. 998-1003
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: 2017 International and 2018 European guidelines are the most recent guidelines for intraductal papillary mucinous neoplasms management.AIM: to evaluate the diagnostic accuracy of these guidelines in identifying malignant IPMN.METHODS: data from resected patients with IPMN were collected in two referral centers. Features of risk associated to cancerous degeneration described in International and European guidelines were retrospectively applied. Sensitivity, specificity, positive and negative predictive value in detecting malignant disease were calculated.RESULTS: the study includes 627 resected patients. European guidelines suggest resection in any patient with at least one feature of moderate-risk. International guidelines suggest that patients with moderate-risk features undergo endoscopic ultrasound before surgery. European guidelines had a higher sensitivity (99.2% vs. 83%) but a lower positive predictive value (59.5% vs. 65.8%) and Specificity (2% vs. 37.5%). European guidelines detected almost all malignancies, but 40% of resected patients had low-grade dysplasia. 297 patients underwent endoscopic ultrasound before surgery. 31/116 (26.7%) tumors radiologically classified as "worrisome features" were reclassified as "high-risk stigmata" by endoscopic ultrasound and 24/31 were malignant IPMN.CONCLUSIONS: European and International guidelines have a relatively low diagnostic accuracy, being European guidelines more aggressive. Endoscopic ultrasound can improve guidelines accuracy in patients with moderate-risk features.
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2.
  • Halimi, Asif, et al. (författare)
  • Isolation of pancreatic microbiota from cystic precursors of pancreatic cancer with intracellular growth and DNA damaging properties
  • 2021
  • Ingår i: Gut microbes. - : Taylor & Francis Group. - 1949-0976 .- 1949-0984. ; 13:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Emerging research suggests gut microbiome may play a role in pancreatic cancer initiation and progression, but cultivation of the cancer microbiome remains challenging. This pilot study aims to investigate the possibility to cultivate pancreatic microbiome from pancreatic cystic lesions associated with invasive cancer. Intra-operatively acquired pancreatic cyst fluid samples showed culture-positivity mainly in the intraductal papillary mucinous neoplasm (IPMN) group of lesions. MALDI-TOF MS profiling analysis shows Gammaproteobacteria and Bacilli dominate among individual bacteria isolates. Among cultivated bacteria, Gammaproteobacteria, particularly Klebsiella pneumoniae, but also Granulicatella adiacens and Enterococcus faecalis, demonstrate consistent pathogenic properties in pancreatic cell lines tested in ex vivo co-culture models. Pathogenic properties include intracellular survival capability, cell death induction, or causing DNA double-strand breaks in the surviving cells resembling genotoxic effects. This study provides new insights into the role of the pancreatic microbiota in the intriguing link between pancreatic cystic lesions and cancer.
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3.
  • Valente, Roberto, et al. (författare)
  • The use of ace inhibitors influences the risk of progression of BD-IPMNs under follow-up
  • 2022
  • Ingår i: Pancreatology (Print). - : Elsevier. - 1424-3903 .- 1424-3911. ; 22:4, s. 516-524
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Chemoprevention's ability to slow down or prevent the progression of BD-IPMNs is extremely appealing. Aspirin (ASA), Ace Inhibitors/Angiotensin Receptor Blockers (ACEIs/ARBs) and Statins (STATs) are frequently prescribed drugs with a possible beneficial effect on different cancer types. Their effect on IPMNs is largely unknown.AIM: To evaluate the association between the use of ASA, ACEIs/ARBs and STATs and the risk of progression of BD-IPMNs in follow-up.MATERIALS AND METHODS: multicenter, retrospective cohort study on patients with presumed BD-IPMNs without relative or absolute indication for surgery. Pharmacological exposures and risk factors were collected. We identified clinically relevant progression (occurrence of radiological absolute or relative indication for surgery) and any progression (occurrence of clinically relevant progression OR any dimension increase OR the occurrence of new cysts).RESULTS: Overall 594 patients were included. ACEIs were associated with a lower occurrence of any progression (HR = 0.70; 95% CI 0.49-0.98, p = 0.04) and clinically relevant progression, HR = 0.42 (95% CI 0.20-0.88; p = 0.02). No significant effect was shown for factors associated with the occurrence of pancreas cancer such as smoking, alcohol consumption and 1st degree family history of pancreas cancer. Among pharmacological exposures, no convincing effect was shown for the chronic use of ASA, ARB and STAT.CONCLUSIONS: ACEIs might have an effect in slowing the progression of BD-IPMNs. ASA, STAT and ARBs show no convincing effect on the progression of BD-IPMNs. Further, prospective, and long-term multicenter studies are needed to verify such association and to define the potential underlying mechanisms.
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