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Welcome to the World Journal of Gastroenterology

The World Journal of Gastroenterology (WJG) is an academic journal that publishes review articles and articles describing original research (basic or clinical) in the fields of gastroenterology, hepatology, gastrointestinal surgery, and gastrointestinal endoscopy. With the aim of advancing knowledge in each of these fields, the WJG gives topical priority to related major diseases and their clinical management; frequently published disease topics are gastric cancer, colorectal cancer, hepatocellular carcinoma, pancreatic cancer, inflammatory bowel disease, irritable bowel syndrome, hepatitis C, hepatitis B, nonalcoholic fatty liver disease, and liver transplantation. All articles published in the WJG comply with the Code of Conduct of the Committee on Publication Ethics (COPE) and the requirements of Academic Rules and Norms. No restrictions are imposed on numbers of words, figures (color, B/W), tables or references for any articles published in the WJG, allowing authors to tell a whole story. The WJG readership audience is global, representing 221 countries and regions, with an average number of 55,000 visits to the online journal per day. 

We encourage gastroenterologists and hepatologists worldwide to submit manuscripts to the WJG describing their original basic or clinical research findings that are of high academic value and which report new diagnostic techniques or summarize their treatment experiences.

The usual times related to all publication processes of the WJG are as follows: (1) From manuscript receipt to peer-review: 2-4 weeks; (2) From initial manuscript acceptance, with revisions, to return of the revised manuscript from the authors: 4-5 weeks; (3) From return of the revised manuscript from the authors to final acceptance: 1-2 weeks; (4) From final acceptance to an article in press: 2 days; and (5) From article in press designation to formal release of the electronic version and all online documentation: 2-9 weeks. The WJG’s acceptance rate: 35%. Submit here >>

2016 Published Issues

Damian Garcia-Olmo, MD, PhD, Doctor, Professor, Surgeon; Stephen Strom, PhD, Professor; Andrzej Tarnawski, DSc, MD, PhD, Professor


Science Citation Index Expanded(Web of Science), Current Contents/Clinical Medicine, Journal Citation Reports, Index Medicus, MEDLINE, PubMed, and PubMed Central.

Journal Metrics

The 2015 edition of Journal Citation Reports® released by Thomson Reuters (ISI) cites the 2015 impact factor for WJG as 2.787 (5-year impact factor: 2.848), ranking WJG as 38 among 78 journals in gastroenterology and hepatology (quartile in category Q2). SJR (SCImago Journal Rank) (2015): 1.076; IPP (Impact per Publication) (2015): 2.850; and SNIP (Source Normalized Impact per Paper) (2015): 1.137.


1007-9327 (print) and 2219-2840 (online)

Management of acute pancreatitis in Japan: Analysis of nationwide epidemiological survey  
Shin Hamada, Atsushi Masamune, Tooru Shimosegawa
World J Gastroenterol 22(28):6335-6344. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6335
Topic Highlight
Mechanisms of resistance to anti-epidermal growth factor receptor inhibitors in metastatic colorectal cancer  
Vincenzo Sforza, Erika Martinelli, Fortunato Ciardiello, Valentina Gambardella, Stefania Napolitano, Giulia Martini, Carminia della Corte, Claudia Cardone, Marianna L Ferrara, Alfonso Reginelli, Giuseppina Liguori, Giulio Belli, Teresa Troiani
World J Gastroenterol 22(28):6345-6361. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6345
Immunotherapy in human colorectal cancer: Challenges and prospective  
Xuan Sun, Jian Suo, Jun Yan
World J Gastroenterol 22(28):6362-6372. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6362
Immunological battlefield in gastric cancer and role of immunotherapies  
Minyu Wang, Rita A Busuttil, Sharon Pattison, Paul J Neeson, Alex Boussioutas
World J Gastroenterol 22(28):6373-6384. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6373
Benefits and harms of endoscopic screening for gastric cancer  
Chisato Hamashima
World J Gastroenterol 22(28):6385-6392. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6385
Hepatitis C virus: Promising discoveries and new treatments  
Juliana Cristina Santiago Bastos, Marina Aiello Padilla, Leonardo Cardia Caserta, Noelle Miotto, Aline Gonzalez Vigani, Clarice Weis Arns
World J Gastroenterol 22(28):6393-6401. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6393
Personality traits and emotional patterns in irritable bowel syndrome  
Maria Rosaria A Muscatello, Antonio Bruno, Carmela Mento, Gianluca Pandolfo, Rocco A Zoccali
World J Gastroenterol 22(28):6402-6415. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6402
Metabolic complications in liver transplant recipients  
Miguel Jiménez-Pérez, Rocío González-Grande, Edith Omonte Guzmán, Víctor Amo Trillo, Juan Miguel Rodrigo López
World J Gastroenterol 22(28):6416-6423. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6416
Re-evaluation of classical prognostic factors in resectable ductal adenocarcinoma of the pancreas  
Daniel Åkerberg, Daniel Ansari, Roland Andersson
World J Gastroenterol 22(28):6424-6433. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6424
Pathophysiological role of guanylate-binding proteins in gastrointestinal diseases  
Nathalie Britzen-Laurent, Christian Herrmann, Elisabeth Naschberger, Roland S Croner, Michael Stürzl
World J Gastroenterol 22(28):6434-6443. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6434
Management of psoriasis patients with hepatitis B or hepatitis C virus infection  
Claudio Bonifati, Viviana Lora, Dario Graceffa, Lorenzo Nosotti
World J Gastroenterol 22(28):6444-6455. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6444
Enhanced recovery pathways in pancreatic surgery: State of the art  
Nicolò Pecorelli, Sara Nobile, Stefano Partelli, Luca Cardinali, Stefano Crippa, Gianpaolo Balzano, Luigi Beretta, Massimo Falconi
World J Gastroenterol 22(28):6456-6468. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6456
Specific CD8+ T cell response immunotherapy for hepatocellular carcinoma and viral hepatitis  
Elia Moreno-Cubero, Juan-Ramón Larrubia
World J Gastroenterol 22(28):6469-6483. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6469
Prevention and management of hepatitis B virus reactivation in patients with hematological malignancies treated with anticancer therapy  
Man Fai Law, Rita Ho, Carmen KM Cheung, Lydia HP Tam, Karen Ma, Kent CY So, Bonaventure Ip, Jacqueline So, Jennifer Lai, Joyce Ng, Tommy HC Tam
World J Gastroenterol 22(28):6484-6500. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6484
Polyethylene glycols: An effective strategy for limiting liver ischemia reperfusion injury  
Gianfranco Pasut, Arnau Panisello, Emma Folch-Puy, Alexandre Lopez, Carlos Castro-Benítez, Maria Calvo, Teresa Carbonell, Agustín García-Gil, René Adam, Joan Roselló-Catafau
World J Gastroenterol 22(28):6501-6508. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6501
Basic Study
c-Jun N-terminal kinase-mediated Rubicon expression enhances hepatocyte lipoapoptosis and promotes hepatocyte ballooning  
Akiko Suzuki, Keisuke Kakisaka, Yuji Suzuki, Ting Wang, Yasuhiro Takikawa
World J Gastroenterol 22(28):6509-6519. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6509
Case Control Study
TCF7L2 rs7903146 polymorphism is associated with gastric cancer: A case-control study in the Venezuelan population  
Keila Torres, Luis Labrador, Elvis Valderrama, Miguel Angel Chiurillo
World J Gastroenterol 22(28):6520-6526. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6520
Observational Study
Trends and predictions for gastric cancer mortality in Brazil  
Angela Carolina Brandão de Souza Giusti, Pétala Tuani Candido de Oliveira Salvador, Juliano dos Santos, Karina Cardoso Meira, Amanda Rodrigues Camacho, Raphael Mendonça Guimarães, Dyego LB Souza
World J Gastroenterol 22(28):6527-6538. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6527
Prospective Study
Can optical diagnosis of small colon polyps be accurate? Comparing standard scope without narrow banding to high definition scope with narrow banding  
Hassan Ashktorab, Firoozeh Etaati, Farahnaz Rezaeean, Mehdi Nouraie, Mansour Paydar, Hassan Hassanzadeh Namin, Andrew Sanderson, Rehana Begum, Kawtar Alkhalloufi, Hassan Brim, Adeyinka O Laiyemo
World J Gastroenterol 22(28):6539-6546. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6539
Systematic Reviews
Epidemiology of functional gastrointestinal disorders in infants and toddlers: A systematic review  
Ana Paula Ferreira-Maia, Alicia Matijasevich, Yuan-Pang Wang
World J Gastroenterol 22(28):6547-6558. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6547
Case Report
Systemic mastocytosis: A rare cause of non-cirrhotic portal hypertension  
Cláudio Martins, Cristina Teixeira, Suzane Ribeiro, Daniel Trabulo, Cláudia Cardoso, João Mangualde, Ricardo Freire, Élia Gamito, Ana Luísa Alves, Isabelle Cremers, Cecília Alves, Anabela Neves, Ana Paula Oliveira
World J Gastroenterol 22(28):6559-6564. Published online Jul 28, 2016. doi: 10.3748/wjg.v22.i28.6559