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Open-Access Journal
Editorial
New technologies in gastrointestinal research 
Asbjørn Mohr Drewes, Hans Gregersen 
World J Gastroenterol 15(2):129-130. Published online Jan 14, 2009. doi: 10.3748/wjg.15.129
Guidelines Clinical Practice
New technologies in the gastrointestinal clinic and research: Impedance and high-resolution manometry 
John E Pandolfino, Peter J Kahrilas 
World J Gastroenterol 15(2):131-138. Published online Jan 14, 2009. doi: 10.3748/wjg.15.131
Axial force measurement for esophageal function testing 
Flemming H Gravesen, Peter Funch-Jensen, Hans Gregersen, Asbjørn Mohr Drewes 
World J Gastroenterol 15(2):139-143. Published online Jan 14, 2009. doi: 10.3748/wjg.15.139
Do we really understand the role of the oesophagogastric junction in disease? 
Barry P McMahon, Blair A Jobe, John E Pandolfino, Hans Gregersen 
World J Gastroenterol 15(2):144-150. Published online Jan 14, 2009. doi: 10.3748/wjg.15.144
Sensory testing of the human gastrointestinal tract 
Christina Brock, Lars Arendt-Nielsen, Oliver Wilder-Smith, Asbjørn Mohr Drewes 
World J Gastroenterol 15(2):151-159. Published online Jan 14, 2009. doi: 10.3748/wjg.15.151
Imaging of the gastrointestinal tract-novel technologies 
Jens Brøndum Frøkjær, Asbjørn Mohr Drewes, Hans Gregersen 
World J Gastroenterol 15(2):160-168. Published online Jan 14, 2009. doi: 10.3748/wjg.15.160
Gastrointestinal tract modelling in health and disease 
Dong-Hua Liao, Jing-Bo Zhao, Hans Gregersen 
World J Gastroenterol 15(2):169-176. Published online Jan 14, 2009. doi: 10.3748/wjg.15.169
Translational pain research: Evaluating analgesic effect in experimental visceral pain models 
Anne Estrup Olesen, Trine Andresen, Lona Louring Christrup, Richard N Upton 
World J Gastroenterol 15(2):177-181. Published online Jan 14, 2009. doi: 10.3748/wjg.15.177
New technologies to investigate the brain-gut axis 
Abhishek Sharma, Dina Lelic, Christina Brock, Peter Paine, Qasim Aziz 
World J Gastroenterol 15(2):182-191. Published online Jan 14, 2009. doi: 10.3748/wjg.15.182
New techniques in the tissue diagnosis of gastrointestinal neuromuscular diseases 
Charles H Knowles, Joanne E Martin 
World J Gastroenterol 15(2):192-197. Published online Jan 14, 2009. doi: 10.3748/wjg.15.192
Mucosal blood flow measurements using laser Doppler perfusion monitoring 
Dag Arne Lihaug Hoff, Hans Gregersen, Jan Gunnar Hatlebakk 
World J Gastroenterol 15(2):198-203. Published online Jan 14, 2009. doi: 10.3748/wjg.15.198
Brief Articles
Prevalence of vacA, cagA and babA2 genes in Cuban Helicobacter pylori isolates 
Lino E Torres, Karelia Melián, Arlenis Moreno, Jordis Alonso, Carlos A Sabatier, Mayrín Hernández, Ludisleydis Bermúdez, Boris L Rodríguez 
World J Gastroenterol 15(2):204-210. Published online Jan 14, 2009. doi: 10.3748/wjg.15.204
Role of bacterial and genetic factors in gastric cancer in Costa Rica 
Sergio A Con, Hiroaki Takeuchi, Gil R Con-Chin, Vicky G Con-Chin, Nobufumi Yasuda, Reinaldo Con-Wong 
World J Gastroenterol 15(2):211-218. Published online Jan 14, 2009. doi: 10.3748/wjg.15.211
Acute effects of Helicobacter pylori extracts on gastric mucosal blood flow in the mouse 
Johanna Henriksnäs, Christer Atuma, Mia Phillipson, Stellan Sandler, Lars Engstrand, Lena Holm 
World J Gastroenterol 15(2):219-225. Published online Jan 14, 2009. doi: 10.3748/wjg.15.219
Adherence to surveillance guidelines for dysplasia and colorectal carcinoma in ulcerative and Crohn’s colitis patients in the Netherlands 
Anne F van Rijn, Paul Fockens, Peter D Siersema, Bas Oldenburg 
World J Gastroenterol 15(2):226-230. Published online Jan 14, 2009. doi: 10.3748/wjg.15.226
Features of hepatocellular carcinoma in cases with autoimmune hepatitis and primary biliary cirrhosis 
Takuya Watanabe, Kenji Soga, Haruka Hirono, Katsuhiko Hasegawa, Koichi Shibasaki, Hirokazu Kawai, Yutaka Aoyagi 
World J Gastroenterol 15(2):231-239. Published online Jan 14, 2009. doi: 10.3748/wjg.15.231
Interaction of hepatitis C virus envelope glycoprotein E2 with the large extracellular loop of tupaia CD81 
Zhan-Fei Tian, Hong Shen, Xi-Hua Fu, Yi-Chun Chen, Hubert E Blum, Thomas F Baumert, Xi-Ping Zhao 
World J Gastroenterol 15(2):240-244. Published online Jan 14, 2009. doi: 10.3748/wjg.15.240
Case Report
Perigastric extraskeletal Ewing’s sarcoma: A case report 
Radoje B Colovic, Nikica M Grubor, Marjan T Micev, Slavko V Matic, Henry Dushan Edward Atkinson, Stojan M Latincic 
World J Gastroenterol 15(2):245-247. Published online Jan 14, 2009. doi: 10.3748/wjg.15.245
A case report of endocrine cell carcinoma in the sigmoid colon with inferior mesenteric vein tumor embolism 
Yusuke Tanoue, Nobutaka Tanaka, Yoshio Suzuki, Shoujirou Hata, Aya Yokota 
World J Gastroenterol 15(2):248-251. Published online Jan 14, 2009. doi: 10.3748/wjg.15.248