ADRIANA VAZ SAFATLE RIBEIRO

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Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/24 - Laboratório de Oncologia Experimental, Hospital das Clínicas, Faculdade de Medicina

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  • article 9 Citação(ões) na Scopus
    Frequency of CDH1 germline variants and contribution of dietary habits in early age onset gastric cancer patients in Brazil
    (2019) GUINDALINI, Rodrigo Santa Cruz; CORMEDI, Marina Candido Visontai; MAISTRO, Simone; PASINI, Fatima Solange; BRANAS, Priscila Cristina Abduch Adas; SANTOS, Liliane dos; PEREIRA, Glaucia Fernanda de Lima; BOCK, Geertruida Hendrika de; SACCARO, Daniela Marques; KATAYAMA, Maria Lucia Hirata; FARAJ, Sheila Friedrich; SAFATLE-RIBEIRO, Adriana; RIBEIRO JUNIOR, Ulysses; DIZ, Maria Del Pilar Estevez; GOUVEA, Ana Carolina Ribeiro Chaves de; CHAMMAS, Roger; FOLGUEIRA, Maria Aparecida Azevedo Koike
    Introduction The contribution of CDH1 germline variants to gastric cancer burden among young adults is unknown in Brazil. We aimed to evaluate the frequency of CDH1 germline variants and the diet/lifestyle habits in early age onset gastric cancer (EOGC, <= 55 years old) patients. Methodology From 2013 to 2015, a total of 88 unrelated and consecutive patients diagnosed with EOGC were enrolled. All CDH1 exons and intronic boundaries were sequenced, and large genomic rearrangements were screened by MLPA. CDH1 transcription analysis was performed for variants that could potentially induce an effect on splicing. The diet and lifestyle habits of EOGC patients were compared to Brazilian population diet and lifestyle, obtained from governmental databases. Results Of 88 patients, the mean age at EOGC diagnosis was 39 years and 55% fulfilled the criteria for hereditary diffuse gastric cancer. The majority of the tumors were diffuse (74%) and poorly differentiated (80%). In total, 4 novel missense variants of uncertain significance (VUS) were identified: c.313T>A, c.387G>T, c.1676G>A, and c.1806C>A. The MLPA results revealed no rearrangements and CDH1 transcription analysis for variants of interest were inconclusive. EOGC patients had a higher red (OR:2.6, 95%CI:1.4-4.9) and processed (OR:3.1, 95%CI:1.6-6.0) meat intake and higher fruit consumption (OR:0.4, 95%IC:0.3-0.7) compared to eating habits of the Brazilian population. Conclusions No unequivocal pathogenic germline CDH1 variants were identified in Brazilian EOGC patients. Dietary habits may be associated with the EOGC development.