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| 1 | Helicobacter pylori infection and liver diseases: Epidemiology and insights into pathogenesis显示文摘Both Helicobacter pylori(H. pylori) infection and liver diseases, including nonalcoholic fatty liver disease(NAFLD), viral hepatitis, and hepatocellular carcinoma(HCC), have high prevalences worldwide, and the relationship between H. pylori infection and liver disease has been discussed for many years. Although positive correlations between H. pylori and NAFLD have been identified in some clinical and experimental studies, nega-tive correlations have also been obtained in high-quality clinical studies. Associations between H. pylori and the pathogenesis of chronic viral hepatitis, mainly disease progression with fibrosis, have also been suggested in some clinical studies. Concerning HCC, a possible role for H. pylori in hepatocarcinogenesis has been identified since H. pylori genes have frequently been detected in resected HCC specimens. However, no study hasrevealed the direct involvement of H. pylori in promoting the development of HCC. Although findings regarding the correlations between H. pylori and liver disease pathogenesis have been accumulating, the existing data do not completely lead to an unequivocal conclusion. Further high-quality clinical and experimental analyses are necessary to evaluate the efficacy of H. pylori eradication in ameliorating the histopathological changes observed in each liver disease. | Kazuya Okushin Takeya Tsutsumi Kazuhiko Ikeuchi Akira Kado Kenichiro Enooku Hidetaka Fujinaga Kyoji Moriya Hiroshi Yotsuyanagi Kazuhiko Koike | 2018 | World Journal of Gastroenterology2018，24，32： | 15 |
| 2 | Staging systems for hepatocellular carcinoma: Current status and future perspectives显示文摘Hepatocellular carcinoma(HCC) is a major health concern worldwide and the third cause of cancer-related death. Despite advances in treatment as well as careful surveillance programs, the mortality rates in most countries are very high. In contrast to other cancers, the prognosis and treatment of HCC depend on the tumor burden in addition to patient's underlying liver disease and liver functional reserve. Moreover, thereis considerable geographic and institutional variation in both risk factors attributable to the underlying liver diseases and the management of HCC. Therefore, although many staging and/or scoring systems have been proposed, there is currently no globally accepted system for HCC due to the extreme heterogeneity of the disease. The aim of this review is to focus on currently available staging systems as well as those newly reported in the literatures since 2012. Moreover, we describe problems with currently available staging systems and attempts to modify and/or add variables to existing staging systems. | Akiyoshi Kinoshita Hiroshi Onoda Nao Fushiya Kazuhiko Koike Hirokazu Nishino Hisao Tajiri | 2015 | World Journal of Hepatology2015，7，3： | 10 |
| 3 | Improvement of prognosis for unresectable biliary tract cancer显示文摘AIM:To evaluate the chemotherapeutic outcomes and confirm the recent improvement of prognosis for unresectable biliary tract cancer.METHODS:A total of 186 consecutive patients with unresectable biliary tract cancer,who had been treated with chemotherapy between 2000 and 2009 at five institutions in Japan,were retrospectively analyzed.These patients were divided into three groups based on the year beginning chemotherapy:Group A(2000-2003),Group B(2004-2006),and Group C(2007-2009).The data were fixed at the end of December 2011.Overall survival and time-to-progression were analyzed and compared chronologically.RESULTS:No patient characteristics were significantly different among the three groups.The gallbladder was involved in about half of the patients in each group,and metastatic biliary tract cancer was present in three quarters of the enrollees.In Group A,5-fluorouracilbased chemotherapies were primarily selected as firstline chemotherapy,and only 24% were treated with second-line chemotherapy.In Group B,gemcitabine or S-1 monotherapy was mainly introduced as firstline chemotherapy,and 51% of the patients who were refractory to first-line chemotherapy were treated with second-line chemotherapy mainly with monotherapy.In Group C,the combination therapy with gemcitabine and S-1 was mainly chosen as first-line chemotherapy,and 53% of the patients refractory to first-line chemotherapy were treated with second-line chemotherapy mainly with combination therapy.The median timeto-progressions were 4.4 mo,3.5 mo and 5.9 mo in Groups A,B and C,respectively(4.4 mo vs 3.5 mo vs 5.9 mo,P < 0.01).The median overall survivals were 7.1,7.3,and 11.7 mo in Groups A,B and C(7.1 mo vs 7.3 mo vs 11.7 mo,P = 0.03).Induction rates of all three drugs(gemcitabine,platinum analogs,and fluoropyrimidine) in Groups A,B and C were 4%,2% and 27%(4% vs 2% vs 27%,P < 0.01).CONCLUSION:The prognosis of unresectable biliary tract cancer has improved recently.Using three effective drugs(gemcitabine,platinum analogs,and fluoropyrimidine) may improve the prognosis of this cancer. | Takashi Sasaki Hiroyuki Isayama Yousuke Nakai Naminatsu Takahara Naoki Sasahira Hirofumi Kogure Suguru Mizuno Hiroshi Yagioka Yukiko Ito Natsuyo Yamamoto Kenji Hirano Nobuo Toda Minoru Tada Masao Omata Kazuhiko Koike | 2013 | World Journal of Gastroenterology2013，19，1： | 8 |
| 4 | Fatal liver failure caused by reactivation of lamivudine-resistant hepatitis B virus:A case report显示文摘We present a case of fetal liver failure caused by the activation of lamivudine-resistant hepatitis B virus (HBV) nine months after lamivudine treatment. A 57-year old man visited our hospital for the treatment of decompensated chronic hepatitis B. Lamivudine was started in December 2001. Subsequently, serum HBV was negative for HBV DNA with seroconversion from HBeAg to anti-HBe and improvement of liver function. However, HBV DNA and HBeAg were again detected in September 2002. He was complicated by breakthrough hepatitis and admitted to our hospital in November for severely impaired liver function. Vidarabine treatment was started and serum HBV DNA and alanine aminotransferase (ALT) decreased transiently. However, after the start of α-interferon treatment, HBV DNA level increased and liver function deteriorated. He died 1 mo after admission. An analysis of amino acid sequences in the polymerase region revealed that rtM204I/V with rtL80I/V occurred at the time of viral breakthrough. After the start of antiviral treatment, rtL180M was detected in addition to rtM204I/V and rtL80I/V, and became predominant in the terminal stage of the disease. HBV clone with a high replication capacity may be produced by antiviral treatment leading to the worsening of liver function. Antiviral therapy for patients with breakthrough hepatitis in advanced liver disease should be carefully performed. | Yuka Suzuki Hiroshi Yotsuyanagi Chiaki Okuse Yoshihiko Nagase Hideaki Takahashi Kyoji Moriya Michihiro Suzuki Kazuhiko Koike Shiro Iino Fumio Itoh | 2007 | World Journal of Gastroenterology2007，13，6： | 4 |
| 5 | Risk factors for retinopathy associated with interferonα-2b and ribavirin combination therapy in patients with chronic hepatitis C显示文摘AIM: To elucidate the frequency and risk factors for retinopathy in patients with chronic hepatitis C who are treated by interferon-ribavirin combination therapy. METHODS: We prospectively analyzed 73 patients with histologically confirmed chronic hepatitis C, who underwent combination therapy for 24 wk. Optic fundi were examined before, and 2, 4, 12 and 24 wk after the start of combination therapy. RESULTS: Fourteen patients (19%) developed retinopathy, which was initially diagnosed by the appearance of a cotton wool spot in 12 patients. Retinal hemorrhage was observed in 5 patients. No patient complained of visual disturbance. Retinopathy disappeared in 9 patients (64%) despite the continuation of combination therapy. However, retinopathy persisted in 5 patients with retinal hemorrhage. A comparison of the clinical background between the groups with and without retinopathy showed no significant differences in age, gender, viral genotype, RNA level, white blood cell count, platelet count, prothrombin time, complications by diabetes mellitus or hypertension, or pretreatment arteriosclerotic changes in the optic fundi. However, multiple logistic regression analysis revealed that complication by hypertension was observed with a high frequency in the group with retinopathy (P = 0.004, OR=245.918, 95% CI=5.6-10786.2). CONCLUSION: Retinopathy associated with combination therapy of interferon a-2b and ribavirin tends to develop in patients with hypertension. | Chiaki Okuse Hiroshi Yotsuyanagi Yoshihiko Nagase Yuhtaro Kobayashi Kiyomi Yasuda Kazuhiko Koike Shiro Iino Michihiro Suzuki Fumio Itoh | 2006 | World Journal of Gastroenterology2006，12，23： | 4 |
| 6 | Clinical analysis of high serum IgE in autoimmune pancreatitis显示文摘AIM: To clarify the clinical significance of high serum IgE in autoimmune pancreatitis (AIP). METHODS: Forty-two AIP patients, whose IgE was measured before steroid treatment, were analyzed. To evaluate the relationship between IgE levels and the disease activity of AIP, we examined (1) Frequency of high IgE (> 170 IU/mL) and concomitant allergic dis-eases requiring treatment; (2) Correlations between IgG, IgG4, and IgE; (3) Relationship between the presence of extrapancreatic lesions and IgE; (4) Re-lationship between clinical relapse and IgE in patients treated with steroids, and (5) Transition of IgE before and after steroid treatment. RESULTS: IgE was elevated in 36/42 (86%) patients.Concomitant allergic disease was observed in seven patients (allergic rhinitis in three, bronchial asthma in three, and urticaria in one). There were no signifi-cant correlations between IgG, IgG4, and IgE (r = -0.168 for IgG, and r = -0.188 for IgG4). There was no significant difference in IgE in the patients with and without extrapancreatic lesions (526 ± 531 IU/mL vs 819 ± 768 IU/mL, P = 0.163), with and without clini-cal relapse (457 ± 346 IU/mL vs 784 ± 786 IU/mL, P = 0.374). There was no significant difference in IgE between before and after steroid treatment (723 ± 744 IU/mL vs 673 ± 660 IU/mL, P = 0.633). CONCLUSION: Although IgE does not necessarily reflect the disease activity, IgE might be useful for the diagnosis of AIP in an inactive stage. | Kenji Hirano Minoru Tada Hiroyuki Isayama Kazumichi Kawakubo Hiroshi Yagioka Takashi Sasaki Hirofumi Kogure Yousuke Nakai Naoki Sasahira Takeshi Tsujino Nobuo Toda Kazuhiko Koike | 2010 | World Journal of Gastroenterology2010，16，41： | 4 |
| 7 | Ectopic expression of homeodomain protein CDX2 in intestinal metaplasia and carcinomas of the stomach显示文摘 | Yun-Qing Bai Hiroshi Yamamoto Yoshimitsu Akiyama Hiroyuki Tanaka Touichirou Takizawa Morio Koike Osmar Kenji Yagi Kiyoshi Saitoh Kimiya Takeshita Takehisa Iwai Yasuhito Yuasa | 2002 | Cancer Letters2002，，1： | 2 |
| 8 | Vertical distribution of dissolved organic carbon and nitrogen in the Southern Ocean显示文摘 | Hiroshi Ogawa Rumi Fukuda I sao Koike | 1999 | Deep-Sea Research1999，46，： | 1 |
| 9 | Molecular structure and function of the slit diaphragm:expression of nephrin in proteinuric states and in developing glomeruli显示文摘 | Hiroshi Kawachi Hiroko Koike Fujio Shimizu | 2002 | Nephrol Dial Transplant2002，17，： | 1 |
| 10 | The endoscopic ultrasonography-guided rendezvous technique for biliary cannulation: a technical review显示文摘 | Hiroyuki Isayama Yousuke Nakai Kazumichi Kawakubo Hiroshi Kawakami Takao Itoi Natsuyo Yamamoto Hirofumi Kogure Kazuhiko Koike | 2013 | Journal of Hepato-Biliary-Pancreatic Sciences2013，，4： | 1 |
| 11 | Hepatitis B virus genotypes and hepatocellular carcinoma in Japan显示文摘 | Hajime Fujie Kyoji Moriya Yoshizumi Shintani Hiroshi Yotsuyanagi Shiro Iino Satoshi Kimura Kazuhiko Koike | 2001 | Gastroenterology2001，，6： | 1 |
| 12 | Pathogenesis of lipid metabolism disorder in hepatitis C: Polyunsaturated fatty acids counteract lipid alterations induced by the core protein显示文摘 | Hideyuki Miyoshi Kyoji Moriya Takeya Tsutsumi Seiko Shinzawa Hajime Fujie Yoshizumi Shintani Hidetake Fujinaga Koji Goto Toru Todoroki Tetsuro Suzuki Tatsuo Miyamura Yoshiharu Matsuura Hiroshi Yotsuyanagi Kazuhiko Koike | 2010 | Journal of Hepatology2010，，3： | 1 |
| 13 | MicroRNA‐140 acts as a liver tumor suppressor by controlling NF‐κB activity by directly targeting DNA methyltransferase 1 (Dnmt1) expression显示文摘 | Akemi Takata Motoyuki Otsuka Takeshi Yoshikawa Takahiro Kishikawa Yohko Hikiba Shuntaro Obi Tadashi Goto Young Jun Kang Shin Maeda Haruhiko Yoshida Masao Omata Hiroshi Asahara Kazuhiko Koike | 2013 | Hepatology2013，，1： | 1 |
| 14 | A Round-bottom 96-well Polystyrene Plate Coated with 2-methacryloyloxyethyl Phosphorylcholine as an Effective Tool for Embryoid Body Formation显示文摘 | Mikiko Koike Hiroshi Kurosawa Yoshifumi Amano | 2005 | Cytotechnology (-)2005，，1： | 1 |
| 15 | Comorbidity, not age, is prognostic in patients with advanced pancreatic cancer receiving gemcitabine-based chemotherapy显示文摘 | Yousuke Nakai Hiroyuki Isayama Takashi Sasaki Naoki Sasahira Takeshi Tsujino Hirofumi Kogure Hiroshi Yagioka Yoko Yashima Osama Togawa Toshihiko Arizumi Saburo Matsubara Kenji Hirano Minoru Tada Masao Omata Kazuhiko Koike | 2010 | Critical Reviews in Oncology and Hematology2010，，： | 1 |
| 16 | Acute hepatitis B of genotype H resulting in persistent infection显示文摘A 47-year-old man presented with general fatigue and dark urine.The laboratory data showed increased levels of hepatic transaminases.The patient was positive for hepatitis B virus(HBV)markers and negative for antihuman immunodeficiency virus.The HBV-DNA titer was set to 7.7 log copies/mL.The patient was diagnosed with acute hepatitis B.The HBV infection route was obscure.The serum levels of hepatic transaminases decreased to normal ranges without any treatment,but the HBVDNA status was maintained for at least 26 mo,indicating the presence of persistent infection.We isolated HBV from the acute-phase serum and determined the genome sequence.A phylogenetic analysis revealed that the isolated HBV was genotype H.In this patient,the elevated peak level of HBV-DNA and the risk alleles at human genome single nucleotide polymorphisms s3077and rs9277535 in the human leukocyte antigen-DP locus were considered to be risk factors for chronic infection.This case suggests that there is a risk of persistent infection by HBV genotype H following acute hepatitis;further cases of HBV genotype H infection must be identified and characterized.Thus,the complete determination of the HBV genotype may be essential during routine clinical care of acute hepatitis B outpatients. | Norie Yamada Ryuta Shigefuku Ryuichi Sugiyama Minoru Kobayashi Hiroki Ikeda Hideaki Takahashi Chiaki Okuse Michihiro Suzuki Fumio Itoh Hiroshi Yotsuyanagi Kiyomi Yasuda Kyoji Moriya Kazuhiko Koike Takaji Wakita Takanobu Kato | 2014 | World Journal of Gastroenterology2014，20，11： | 1 |
| 17 | Alkaliextractable polysaccharides in marine sediments: Abundance, molecular size distribution, and monosaccharide composition 显示文摘 | Miyajima Toshihiro Ogawa Hiroshi Koike Isao | 2001 | Geochimica et Cosmochimica Acta2001，65，9： | 1 |
| 18 | Serum lipid profile of patients with genotype 1b hepatitis C viral infection in Japan显示文摘 | Kyoji Moriya Yoshizumi Shintani Hajime Fujie Hideyuki Miyoshi Takeya Tsutsumi Hiroshi Yotsuyanagi Shiro Iino Satoshi Kimura Kazuhiko Koike | 2002 | Hepatology Research2002，，4： | 1 |
| 19 | Definition of Road Roughness Parameters for Tire Vibration Noise Control 显示文摘 | Fujikawa Tatsuo Koike Hiroshi Oshino Yasuo | 2005 | Applied Acoustics May2005，66，5： | 1 |
| 20 | Definition of Road Roughness Parameters for Tire Vibration Noise Control显示文摘 | Tatsuo Fujikawa Hiroshi Koike Yasuo Oshino Hideki Tachibana | 2005 | Applied Acoustics May2005，66，5： | 1 |
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