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Editorials
Molecular mechanisms of H. pylori associated gastric carcinogenesis 
Zun-Wu Zhang, Michael J.G. Farthing 
World J Gastroenterol 5(5):369-374. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.369
Diagnosis and treatment of gastroesophageal reflux disease in infants and children 
Vandenplas Yvan 
World J Gastroenterol 5(5):375-382. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.375
Reassessment of barium radiographic examination in diagnosing gastrointestinal diseases 
Jiu-Ru Chen 
World J Gastroenterol 5(5):383-387. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.383
Invited Commentary
Fibrodynamics-elucidation of the mechanisms and sites of liver fibrogenesis 
Catherine H Wu 
World J Gastroenterol 5(5):388-390. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.388
Original Articles
Increased prevalence of intestinal inflammation in patients with liver cirrhosis 
Osamu Saitoh, Kazunori Sugi, Keishi Kojima, Hisashi Matsumoto, Ken Nakagawa, Masanobu Kayazawa, Seigou Tanaka, Tsutomu Teranishi, Ichiro Hirata, Ken-ichi Katsu 
World J Gastroenterol 5(5):391-396. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.391
Dynamic changes of type I, III and IV collagen synthesis and distribution of collagen-producing cells in carbon tetrachloride-induced rat liver fibrosis 
Wei-Dong Du, Yue-E Zhang, Wei-Rong Zhai, Xiao-Mei Zhou 
World J Gastroenterol 5(5):397-403. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.397
Inhibitory activity of polysaccharide extracts from three kinds of edible fungi on proliferation of human hepatoma SMMC-7721 cell and mouse implanted S180 tumor 
Shi-Ming Jiang, Zheng-Ming Xiao, Zhao-Hui Xu 
World J Gastroenterol 5(5):404-407. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.404
Regulatory effect and mechanism of gastrin and its antagonists on colorectal carcinoma 
Shuang-Wu He, Kang-Qiang Shen, Yu-Jun He, Bin Xie, Yan-Ming Zhao 
World J Gastroenterol 5(5):408-416. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.408
Effect of retinoic acid on the changes of nuclear matrix-intermediate filament system in gastric carcinoma cells 
Qi-Fu Li 
World J Gastroenterol 5(5):417-420. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.417
Gastroesophageal reflux: the features in elderly patients 
Xun Huang, Hui-Ming Zhu, Chuan-Zhen Deng, G. Bianchi Porro, O. Sangaletti, F. Pace 
World J Gastroenterol 5(5):421-423. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.421
Review
Human intestinal and biliary cryptosporidiosis 
Xian-Ming Chen, Nicholas F. LaRusso 
World J Gastroenterol 5(5):424-429. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.424
Brief Reports
Expression of inducible nitric oxide synthase in human gastric cancer 
Jun Yu, Fei Guo, Matthias P.A. Ebert, Peter Malfertheiner 
World J Gastroenterol 5(5):430-431. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.430
Partial sequencing of 5'non-coding region of 7 HGV strains isolated from different areas of China 
Xing-Tai Wang, Hui Zhuang, Hai-Bo Song, He-Min Li, Hua-Yuan Zhang, Yang Yu 
World J Gastroenterol 5(5):432-434. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.432
Apoptosis of neoplasm cell lines induced by hepatic peptides extracted from sucking porcine hepatocytes 
Xiang-Ping Kong, Qing-Yan Zou, Ru-Bing Li, Ping-Lu Zheng, Lian-Ping Yang, Shan-Wen Jin 
World J Gastroenterol 5(5):435-439. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.435
The possible relationship between hepatomegaly and release of HGF into plasma induced by clofibrate in rats 
Wei Xu, Shu-Guang Wu 
World J Gastroenterol 5(5):440-442. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.440
The effect of retinoic acid on Ito cell proliferation and content of DNA and RNA 
Ze-Li Gao, Ding-Guo Li, Han-Ming Lu, Xiao-Hong Gu 
World J Gastroenterol 5(5):443-444. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.443
The mutation induced by space conditions in Escherichia coli 
Man-Li Weng, Jin-Guo Li, Fei Gao, Xiu-Yuan Zhang, Pei-Sheng Wang, Xing-Cun Jiang 
World J Gastroenterol 5(5):445-447. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.445
Treatment of corticosteroid-resistant ulcerative colitis with oral low molecular weight heparin 
Hui-Fei Cui, Xue-Liang Jiang 
World J Gastroenterol 5(5):448-450. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.448
Methylation status of p16 gene in colorectal carcinoma and normal colonic mucosa 
Jing Zhang, Mao-De Lai, Jian Chen 
World J Gastroenterol 5(5):451-454. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.451
Study on the expression of matrix metalloproteinase-2 mRNA in human gastric cancer 
Feng Ji, Wei-Lin Wang, Zi-Li Yang, You-Ming Li, Huai-Di Huang, Wei-Dong Chen 
World J Gastroenterol 5(5):455-457. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.455
Islet separation and islet cell culture in vitro from human embryo pancreas 
Zhu Yuan, Guang-Ying Wu, Yong-Shu He, Chen-Ming Shao, Ya Zhan 
World J Gastroenterol 5(5):458-460. Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.458