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Pancreatic Neoplasms: HELP
Articles by Miquel Angel Peinado
Based on 1 article published since 2009
(Why 1 article?)

Between 2009 and 2019, Miquel Angel Peinado wrote the following article about Pancreatic Neoplasms.
+ Citations + Abstracts
1 Article Genetic and epigenetic markers in the evaluation of pancreatic masses. 2013

Ginestà, Mireia M / Mora, Josefina / Mayor, Regina / Farré, Antoni / Peinado, Miquel Angel / Busquets, Juli / Serrano, Teresa / Capellá, Gabriel / Fabregat, Joan. ·Translational Research Laboratory, Hereditary Cancer Program, Institut Català d´Oncologia-IDIBELL, Barcelona, Spain. ·J Clin Pathol · Pubmed #23135349.

ABSTRACT: BACKGROUND: Methylation markers have shown promise in the early diagnosis of pancreatic carcinoma. The aim of this study was to assess the diagnostic utility of hypermethylation status of candidate genes in combination with KRAS mutation detection in the evaluation of pancreatic masses. EXPERIMENTAL DESIGN: Sixty-one fine needle aspirates of pancreatic masses (43 pancreatic adenocarcinomas and 18 chronic pancreatitis) were studied. Methylation status of HRH2, EN1, SPARC, CDH13 and APC were analysed using melting curve analysis after DNA bisulfite treatment. KRAS mutations were also analysed. RESULTS: The methylation panel had a sensitivity of 73% (27 of 37, CI 95% 56 to 86%) and a specificity of 100% whenever two or more promoters were found hypermethylated. KRAS mutations showed a sensitivity of 77% (33 of 43, CI 95% 62 to 88%) and a specificity of 100%. Both molecular analyses added useful information to cytology by increasing the number of informative cases. When genetic and epigenetic analyses were combined sensitivity was 84% (36 of 43 CI 95% 69 to 93%) maintaining a 100% specificity. CONCLUSIONS: Analysis of hypermethylation status of a panel of genes and KRAS mutation detection offer a similar diagnostic yield in the evaluation of pancreatic masses. The combined molecular analysis increases the number of informative cases without diminishing specificity.