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| 1 | Relationship between post-ERCP pancreatitis and the change of serum amylase level after the procedure显示文摘AIM: To clarify the relationship between the change of serum amylase level and post-ERCP pancreatitis. METHODS: Between January 1999 and December 2002, 1291 ERCP-related procedures were performed. Serum amylase concentrations were measured before the procedure and 3, 6, and 24 h afterward. The frequency and severity of post-ERCP pancreatitis and the relationship between these phenomena and the change in amylase level were estimated. RESULTS: Post-ERCP pancreatitis occurred in 47 patients (3.6%). Pancreatitis occurred in 1% of patients with normal amylase levels 3 h after ERCP, and in 1%, 5%, 20%, 31% and 39% of patients with amylase levels elevated 1-2 times, 2-3 times, 3-5 times, 5-10 times and over 10 times the upper normal limit at 3 h after ERCP, respectively (level < 2 times vs ≥ 2 times, P < 0.001). Of the 143 patients with levels higher than the normal limit at 3 h after ERCP followed by elevation at 6 h, pancreatitis occurred in 26%. In contrast, pancreatitis occurred in 9% of 45 patients with a level higher than two times the normal limit at 3 h after ERCP followed by a decrease at 6 h (26% vs 9%, P < 0.05). CONCLUSION: Post-ERCP pancreatitis is frequently associated with an increase in serum amylase level greater than twice the normal limit at 3 h after ERCP with an elevation at 6 h. A decrease in amylase level at 6 h after ERCP suggests the unlikelihood of development of post-ERCP pancreatitis. | Kei Ito Naotaka Fujita Yutaka Noda Go Kobayashi Jun Horaguchi Osamu Takasawa Takashi Obana | 2007 | World Journal of Gastroenterology2007，13，28： | 19 |
| 2 | Advances in understanding and treating liver diseases during pregnancy:A review显示文摘Liver disease in pregnancy is rare but pregnancyrelated liver diseases may cause threat to fetal and maternal survival.It includes pre-eclampsia;eclampsia;haemolysis,elevated liver enzymes,and low platelets syndrome;acute fatty liver of pregnancy;hyperemesis gravidarum;and intrahepatic cholestasis of pregnancy.Recent basic researches have shown the various etiologies involved in this disease entity.With these advances,rapid diagnosis is essential for severe cases since the decision of immediate delivery is important for maternal and fetal survival.The other therapeutic options have also been shown in recent reports based on the clinical trials and cooperation and information sharing between hepatologist and gynecologist is important for timely therapeutic intervention.Therefore,correct understandings of diseases and differential diagnosis from the pre-existing and co-incidental liver diseases during the pregnancy will help to achieve better prognosis.Therefore,here we review and summarized recent advances in understanding the etiologies,clinical courses and management of liver disease in pregnancy.This information will contribute to physicians for diagnosis of disease and optimum management of patients. | Kenya Kamimura Hiroyuki Abe Hirokazu Kawai Hiroteru Kamimura Yuji Kobayashi Minoru Nomoto Yutaka Aoyagi Shuji Terai | 2015 | World Journal of Gastroenterology2015，21，17： | 15 |
| 3 | Pancreatic guidewire placement for achieving selective biliary cannulation during endoscopic retrograde cholangio-pancreatography显示文摘AIM: To investigate the frequency and risk factors for acute pancreatitis after pancreatic guidewire placement (P-GW) in achieving cannulation of the bile duct during endoscopic retrograde cholangio-pancreatography (ERCP). METHODS: P-GW was performed in 113 patients in whom cannulation of the bile duct was difficult. The success rate of biliary cannulation, the frequency and risk factors of post-ERCP pancreatitis, and the frequency of spontaneous migration of the pancreatic duct stent were investigated. RESULTS: Selective biliary cannulation with P-GW was achieved in 73% of the patients. Post-ERCP pancreatitis occurred in 12% (14 patients: mild, 13; moderate, 1). Prophylactic pancreatic stenting was attempted in 59% of the patients. Of the 64 patients who successfully underwent stent placement, three developed mild pancreatitis (4.7%). Of the 49 patients without stent placement, 11 developed pancreatitis (22%: mild, 10; moderate, 1). Of the five patients in whom stent placement was unsuccessful, two developed mild pancreatitis. Univariate and multivariate analyses revealed no pancreatic stenting to be the only significant risk factor for pancreatitis. Spontaneous migration of the stent was observed within two weeks in 92% of the patients who had undergone pancreatic duct stenting.CONCLUSION: P-GW is useful for achieving selective biliary cannulation. Pancreatic duct stenting after P-GW can reduce the incidence of post-ERCP pancreatitis, which requires evaluation by means of prospective randomized controlled trials. | Kei Ito Naotaka Fujita Yutaka Noda Go Kobayashi Takashi Obana Jun Horaguchi Osamu Takasawa Shinsuke Koshita Yoshihide Kanno | 2008 | World Journal of Gastroenterology2008，14，36： | 14 |
| 4 | Pegylated interferon plus ribavirin for genotype Ib chronic hepatitis C in Japan显示文摘AIM:To evaluate the efficacy of pegylated interferon α-2b(peg-IFNα-2b) plus ribavirin(RBV) therapy in Japanese patients with chronic hepatitis C(CHC) genotype Ib and a high viral load.METHODS:One hundred and twenty CHC patients(58.3% male) who received peg-IFNα-2b plus RBV therapy for 48 wk were enrolled.Sustained virological response(SVR) and clinical parameters were evaluated.RESULTS:One hundred(83.3%) of 120 patients completed 48 wk of treatment.53 patients(44.3%) achieved SVR.Early virological response(EVR) and end of treatment response(ETR) rates were 50% and 73.3%,respectively.The clinical parameters(SVR vs non-SVR) associated with SVR,ALT(108.4 IU/L vs 74.5 IU/L,P = 0.063),EVR(76.4% vs 16.4%,P < 0.0001),adherence to peg-IFN(≥ 80% of planned dose) at week 12(48.1% vs 13.6%,P = 0.00036),adherence to peg-IFN at week 48(54.7% vs 16.2%,P < 0.0001) and adherence to RBV at week 48(56.1% vs 32.1%,P = 0.0102) were determined using univariate analysis,and EVR and adherence to peg-IFN at week 48 were determined using multivariate analysis.In the older patient group(> 56 years),SVR in females was significantly lower than that in males(17% vs 50%,P = 0.0262).EVR and adherence to Peg-IFN were demonstrated to be the main factors associated with SVR.CONCLUSION:Peg-IFNα-2b plus RBV combination therapy demonstrated good tolerability in Japanese patients with CHC and resulted in a SVR rate of 44.3%.Treatment of elderly female patients is still challenging and maintenance of adherence to peg-IFNα-2b is important in improving the SVR rate. | Takayuki Kogure Yoshiyuki Ueno Koji Fukushima Futoshi Nagasaki Yasuteru Kondo Jun Inoue Yasunori Matsuda Eiji Kakazu Takeshi Yamamoto Hiroyoshi Onodera Yutaka Miyazaki Hiromasa Okamoto Takehiro Akahane Tomoo Kobayashi Yutaka Mano Takao Iwasaki Motoyasu Ishii Tooru Shimosegawa | 2008 | World Journal of Gastroenterology2008，14，47： | 7 |
| 5 | Human PBMC-transferred murine MHC class I/II-deficient NOG mice enable long-term evaluation of human immune responses显示文摘Immunodeficient mice engrafted with human peripheral blood cells are promising tools for in vivo analysis of human patient individual immune responses.However,when human peripheral blood mononuclear cells(PBMCs)are transferred into NOG(NOD/Shi-scid,IL-2rg null)mice,severe graft versus host disease(GVHD)hinders long term detailed analysis.Administration of human PBMCs into newly developed murine MHC class I-and class II-deficient NOG(NOG-dKO;NOG-Iab,B2m-double-knockout)mice showed sufficient engraftment of human immune cells with little sign of GVHD.Immunization with influenza vaccine resulted in an increase in influenza-specific human IgG Ab,indicating induction of antigen-specific B cells in the NOG-dKO mice.Immunization with human dendritic cells pulsed with HLA-A2 restricted cytomegalovirus peptide induced specific cytotoxic T cells,indicating the induction of antigen-specific T cells in the NOG-dKO mice.Adoptive cell therapies(ACTs)using melanoma antigen recognized by T cells(MART-1)-specific TCR-transduced activated T cells showed strong tumor growth inhibition in NOG-dKO mice without any sign of GVHD accompanied by preferential expansion of the transferred MART-1-specific T cells.ACTs using cultured human melanoma infiltrating T cells also showed anti-tumor effects against autologous melanoma cells in NOG-dKO mice,in which changes in human cancer phenotypes by immune intervention,such as increased CD271 expression,could be evaluated.Therefore,NOG-dKO mice are useful tools for more detailed analysis of both the induction and effector phases of T-cell and B-cell responses for a longer period than regular NOG mice. | Tomonori Yaguchi Asuka Kobayashi Takashi Inozume Kenji Morii Haruna Nagumo Hiroshi Nishio Takashi Iwata Yuyo Ka Ikumi Katano Ryoji Ito Mamoru Ito Yutaka Kawakami | 2018 | Cellular & Molecular Immunology2018，15，11： | 6 |
| 6 | A prospective, multicenter study of 1111 colorectal endoscopic submucosal dissections (with video)显示文摘 | Yutaka Saito Toshio Uraoka Yuichiro Yamaguchi Kinichi Hotta Naoto Sakamoto Hiroaki Ikematsu Masakatsu Fukuzawa Nozomu Kobayashi Junichirou Nasu Tomoki Michida Shigeaki Yoshida Hisatomo Ikehara Yosuke Otake Takeshi Nakajima Takahisa Matsuda Daizo Saito | 2010 | Gastrointestinal Endoscopy2010，，6： | 6 |
| 7 | Sclerosing epithelioid fibrosarcoma of the liver infiltrating the inferior vena cava显示文摘Sclerosing epithelioid fibrosarcoma (SEF) is a rare and distinct variant of fibrosarcoma, composed of epithelioid tumor cells arranged in strands, nests, cords, or sheets embedded within a sclerotic collagenous matrix. We report a 39-year-old man with SEF of the liver, which infiltrated the inferior vena cava (IVC). The SEF of the liver was successfully resected, and the infiltrated IVC was also removed together with the liver tumor. Histopathological examination of the tumor showed typical histopathology of SEF. Immunohistochemically, the tumor was positive for vimentin. Recurrence was noted 7 mo after surgery. After chemotherapy, the recurrent tumor was resected surgically, and histopathological examination showed similar findingsto those of the primary tumor. To our knowledge, this is the first report of SEF of the liver with tumor invasion of the IVC. | Yoshito Tomimaru Hiroaki Nagano Shigeru Marubashi Shogo Kobayashi Hidetoshi Eguchi Yutaka Takeda Masahiro Tanemura Toru Kitagawa Koji Umeshita Nobuyuki Hashimoto Hideki Yoshikawa Kenichi Wakasa Yuichiro Doki Masaki Mori | 2009 | World Journal of Gastroenterology2009，15，33： | 5 |
| 8 | Fresh frozen plasma transfusion does not affect outcomes following hepatic resection for hepatocellular carcinoma显示文摘AIM:To investigate whether fresh frozen plasma (FFP) transfusion affects outcomes following hepatic resection for hepatocellular carcinoma (HCC) in terms of liver function,postoperative complications and cancer prognosis.METHODS:We retrospectively compared the incidence of postoperative complications between 204 patients who underwent hepatectomy for HCC with routine FFP transfusion in an early period (1983-1993,Group A) and 293 with necessity for FFP transfusion during a later period (1998-2006,Group B),and also between two subgroups of Group B [22 patients with FFP transfusion (Group B1) and 275 patients without FFP transfusion (Group B2)].Additionally,only in limited patients in Group B1 and Group B2 with intraoperative blood loss≥ 2000 mL (Group B1 ≥ 2000 mL and Group B2 ≥ 2000 mL),postoperative complications,liver function tests,and cancer prognosis were compared.RESULTS:No mortality was registered in Group B,compared to 8 patients (3.9%) of Group A.The incidence of morbidity in Group B2 [23.2% (64/275)] was not significantly different from Group B1 [40.9% (9/22)] and Group A [27.0% (55/204)].The incidence of complications and postoperative liver function tests were comparable between Group B1 ≥ 2000 mL vs Group B2 ≥ 2000 mL.Postoperative prognosis did not correlate with administration of FFP,but with tumor-related factors.CONCLUSION:The outcome of hepatectomy for HCC is not influenced by FFP transfusion.We suggest FFP transfusion be abandoned in patients who undergo hepatectomy for HCC. | Yoshito Tomimaru Hiroshi Wada Shigeru Marubashi Shogo Kobayashi Hidetoshi Eguchi Yutaka Takeda Masahiro Tanemura Takehiro Noda Koji Umeshita Yuichiro Doki Masaki Mori Hiroak Nagano | 2010 | World Journal of Gastroenterology2010，16，44： | 5 |
| 9 | Nuclear corepressor 1 expression predicts response to first-line endocrine therapy for breast cancer patients on relapse显示文摘背景雌激素受体 alpha (嗯一)是最重要的内分泌的治疗应答预言者因为有对内分泌的治疗的反应的预言的胸 cancer.The 精确性的女人被认为被包含雌激素受体 coregulatory 蛋白质和串音在之间影响嗯并且另外的生长发信号因素的 networks.Nuclear corepressor 1 ( NCOR1 )是学习客观的抄写 repressor.The 是在蛋白质 le 调查 NCOR1 | ZHANG Zhen-huan Hiroko Yamashita Tatsuya Toyama Yutaka Yamamoto Teru Kawasoe Mutsuko lbusuki Saori Tomita Hiroshi Sugiura Shunzo Kobayashi Yoshitaka Fujii Hirotaka Iwase | 2009 | Chinese Medical Journal2009，，15： | 4 |
| 10 | Survival of geriatric patients after percutaneous endoscopic gastrostomy in Japan显示文摘AIM: To examine the long term survival of geriatric patients treated with percutaneous endoscopic gastrostomy (PEG) in Japan. METHODS: We retrospectively included 46 Japanese community and tertiary hospitals to investigate 931 consecutive geriatric patients (≥ 65 years old) with swallowing difficulty and newly performed PEG between Jan 1st 2005 and Dec 31st 2008. We set death as an outcome and explored the associations among patient’s characteristics at PEG using log-rank tests and Cox proportional hazard models. RESULTS: Nine hundred and thirty one patients were followed up for a median of 468 d. A total of 502 deaths were observed (mortality 53%). However, 99%, 95%, 88%, 75% and 66% of 931 patients survived more than 7, 30, 60 d, a half year and one year, respectively. In addition, 50% and 25% of the patients survived 753 and 1647 d, respectively. Eight deaths were considered as PEG-related, and were associated with lower serum albumin levels (P = 0.002). On the other hand, among 28 surviving patients (6.5%), PEG was removed. In a multivariate hazard model, older age [hazard ratio (HR), 1.02; 95% confidence interval (CI), 1.00-1.03; P = 0.009], higher C-reactive protein (HR, 1.04; 95% CI: 1.01-1.07; P = 0.005), and higher blood urea nitrogen (HR, 1.01; 95% CI: 1.00-1.02; P = 0.003) were significant poor prognostic factors, whereas higher albumin (HR, 0.67; 95% CI: 0.52-0.85; P = 0.001), female gender (HR, 0.60; 95% CI: 0.48-0.75; P < 0.001) and no previous history of ischemic heart disease (HR, 0.69; 95% CI: 0.54-0.88, P = 0.003) were markedly better prognostic factors. CONCLUSION: These results suggest that more than half of geriatric patients with PEG may survive longer than 2 years. The analysis elucidated prognostic factors. | Yutaka Suzuki Seryna Tamez Akihiko Murakami Akihiko Taira Akihiro Mizuhara Akira Horiuchi Chie Mihara Eiji Ako Hirohito Muramatsu Hitoshi Okano Hitoshi Suenaga Kazuaki Jomoto Junya Kobayashi Katsunari Takifuji Kazuhiro Akiyama Koh Tahara Koji Onishi Makoto Shimazaki Masami Matsumoto Masashi Ijima Masato Murakami Masato Nakahori Michiaki Kudo Michio Maruyama Mikako Takahashi Naohiro Washizawa Shigeru Onozawa Satoshi Goshi Satoyoshi Yamashita Shigeki Ono Shin Imazato Shinji Nishiwaki Shuichirou Kitahara Takao Endo Takao Iiri Takeshi Nagahama Takuto Hikichi Tatsuya Mikami Tetsuo Yamamoto Tetsushi Ogawa Tomoko Ogawa Tomoyuki Ohta Toshifumi Matsumoto Toshiroh Kura Tsutomu Kikuchi Tsuyoshi Iwase Tsuyotoshi Tsuji Yukio Nishiguchi Mitsuyoshi Urashima | 2010 | World Journal of Gastroenterology2010，16，40： | 4 |
| 11 | Size does not determine the grade of malignancy of early invasive colorectal cancer显示文摘AIM:To clarify the clinicopathological characteristics of small and large early invasive colorectal cancers(EI-CRCs),and to determine whether malignancy grade depends on size.METHODS:A total of 583 consecutive EI-CRCs treated by endoscopic mucosal resection or surgery at the National Cancer Center Hospital between 1980 and 2004 were enrolled in this study.Lesions were classified into two groups based on size:small(≤10mm) and large(>10mm).Clinicopathological features,incidence of lymph node metastasis(LNM) and risk factors for LNM,such as depth of invasion,lymphovascular invasion(LVI) and poorly differentiated adenocarcinoma(PDA) were analyzed in all resected specimens.RESULTS:There were 120(21%) small and 463(79%) large lesions.Histopathological analysis of the small lesion group revealed submucosal deep cancer(sm:≥1000 μm) in 90(75%) cases,LVI in 26(22%) cases,and PDA in 12(10%) cases.Similarly,the large lesion group exhibited submucosal deep cancer in 380(82%) cases,LVI in 125(27%) cases,and PDA in 79(17%) cases.The rate of LNM was 11.2% and 12.1% in the small and large lesion groups,respectively.CONCLUSION:Small EI-CRC demonstrated the same aggressiveness and malignant potential as large cancer. | Takahisa Matsuda Yutaka Saito Takahiro Fujii Toshio Uraoka Takeshi Nakajima Nozomu Kobayashi Fabian Emura Akiko Ono Tadakazu Shimoda Hiroaki Ikematsu Kuang-I Fu Yasushi Sano Takahiro Fujimori | 2009 | World Journal of Gastroenterology2009，15，22： | 4 |
| 12 | Risk factors for small bowel angioectasia:The impact of visceral fat accumulation显示文摘AIM: To investigate visceral fat accumulation in association with the risk of small bowel angioectasia.METHODS: We retrospectively investigated 198 consecutive patients who underwent both capsule endoscopy and CT for investigation of obscure gastrointestinal bleeding(OGIB) from January 2009 to September 2013. The visceral fat area(VFA) and subcutaneous fat area were measured by CT, and information on comorbidities, body mass index, and medications was obtained from their medical records.Logistic regression analysis was used to evaluate associations.RESULTS: Capsule endoscopy revealed small bowel angioectasia in 18/198(9.1%) patients with OGIB.Compared to patients without small bowel angioectasia,those with small bowel angioectasia had a significantly higher VFA(96 ± 76.0 cm2 vs 63.4 ±51.5 cm2, P = 0.016) and a higher prevalence of liver cirrhosis(61% vs 22%, P < 0.001). The proportion of patients with chronic renal failure was higher in patients with small bowel angioectasia(22% vs 9%,P = 0.11). There were no significant differences in subcutaneous fat area or waist circumference. The prevalence of small bowel angioectasia progressively increased according to the VFA. Multivariate analysis showed that the VFA [odd ratio(OR) for each 10-cm2 increment = 1.1; [95% confidence interval(CI):1.02-1.19; P = 0.021] and liver cirrhosis(OR = 6.1,95%CI: 2.2-18.5; P < 0.001) were significant risk factors for small bowel angioectasia.CONCLUSION: VFA is positively associated with theprevalence of small bowel angioectasia, for which VFA and liver cirrhosis are independent risk factors in patients with OGIB. | Atsuo Yamada Ryota Niikura Yuka Kobayashi Hirobumi Suzuki Shuntaro Yoshida Hirotsugu Watabe Yutaka Yamaji Yoshihiro Hirata Kazuhiko Koike | 2015 | World Journal of Gastroenterology2015，21，23： | 4 |
| 13 | Histological changes at an endosonography-guided biliary drainage site:A case report显示文摘Endosonography-guided biliary drainage (ESBD) is a new method enabling internal drainage of an obstructed bile duct. However,the histological conditions associated with fistula development via the duodenum to the bile duct have not been reported. We performed ESBD 14 d preoperatively in a patient with an ampullary carcinoma and histologically confirmed changes in and around the fistula. The female patient developed no complications relevant to ESBD. Levels of serum bilirubin and hepatobiliary enzymes declined quickly,and pancreatoduodenectomy was carried out uneventfully. The resected specimen was sliced and stained with hematoxylin-eosin. Histological evaluation of the puncture site in the duodenum and bile-duct wall,and the sinus tract revealed no hematoma,bile leakage,or abscess in or around the sinus tract. Little sign of granulation,fibrosis,and inflammatory cell infiltration was observed. Although further large-scale confirmatory studies are needed,the findings here may encourage more active use of ESBD as a substitute for percutaneous transhepatic drainage in cases with failed/difficult endoscopic biliary stenting. | Naotaka Fujita Yutaka Noda Go Kobayashi Kei Ito Takashi Obana Jun Horaguchi Osamu Takasawa Kazunari Nakahara | 2007 | World Journal of Gastroenterology2007，13，41： | 4 |
| 14 | Collagenous gastritis: Review显示文摘Collagenous gastritis is a rare disease characterized by the subepithelial deposition of collagen bands thicker than 10 μm and the infiltration of inflammatory mononuclear cells in the lamina propria. Collagenous colitis and collagenous sprue have similar histological characteristics to collagenous gastritis and are thought to be part of the same disease entity. However, while collagenous colitis has become more common in the field of gastroenterology, presenting with clinical symptoms of chronic diarrhea in older patients,collagenous gastritis is rare. Since the disease was first reported in 1989, only 60 cases have been documented in the English literature. No safe and effective treatments have been identified from randomized, controlled trials. Therefore, better understanding of the disease and the reporting of more cases will help to establish diagnostic criteria and to develop therapeutic strategies. Therefore, here we review the clinical characteristics, endoscopic and histological findings, treatment, and clinical outcomes from case reports and case series published to date, and provide a summary of the latest information on the disease. This information will contribute to improved knowledge of collagenous gastritis so physicians can recognize and correctly diagnose the disease, and will help to develop a standard therapeutic strategy for future clinical trials. | Kenya Kamimura Masaaki Kobayashi Yuichi Sato Yutaka Aoyagi Shuji Terai | 2015 | World Journal of Gastrointestinal Endoscopy2015，7，3： | 3 |
| 15 | Bandgap-tunable lateral and vertical heterostructures based on monolayer Mo1-xWxS2 alloys显示文摘有特定的 bandgaps 的二维的半导体的 heterostructures 的制造是认识到这些材料的完整的潜力在的一条重要途径电子并且 optoelectronic 设备。几个组最近基于象 WSe 2, MoSe 2, WS 2, 和瞬间 2 那样的典型半导体的转变金属 dichalcogenides (TMDC ) 的单层报导了侧面、垂直的 heterostructures 的直接生长。这里,我们基于 bandgap 悦耳的瞬间 1-x W x 由 WO 3 和哞 3 的有图案的薄电影的 sulfurization 的 S 2 合金单层。这些有图案的电影能够在水晶生长阶段期间由转变金属的散开产生许多集中坡度。在高温度下面,这导致瞬间 1-x W x 有各种各样的作文和 bandgaps 的 S 2 合金,在底层上取决于晶体的位置。这些合金的 Heterostructures 在低温度的生长期间在一个单个领域以内在 W/Mo 的比率通过逐步的变化被获得。单层瞬间 1-x W x S 2 合金,经常甚至在轻轻的条件下面降级,被涂层完成有另外的单层的合金。现在的调查结果表明学习并且优化基于 TMDC 的 heterostructures 的光、电的性质在未来设备应用允许材料的使用的一个有效工具。 | Yu Kobayashi Shohei Mori Yutaka Maniwa Yasumitsu Miyata | 2015 | Nano Research2015，8，10： | 3 |
| 16 | The efficacy of endoscopic triamcinolone injection for the prevention of esophageal stricture after endoscopic submucosal dissection显示文摘 | Satoru Hashimoto Masaaki Kobayashi Manabu Takeuchi Yuichi Sato Rintaro Narisawa Yutaka Aoyagi | 2011 | Gastrointestinal Endoscopy2011，，6： | 3 |
| 17 | Impact of fecal occult blood on obscure gastrointestinal bleeding:Observational study显示文摘AIM: To elucidate the association between small bowel diseases(SBDs) and positive fecal occult blood test(FOBT) in patients with obscure gastrointestinal bleeding(OGIB).METHODS: Between February 2008 and August 2013, 202 patients with OGIB who performed both capsule endoscopy(CE) and FOBT were enrolled(mean age; 63.6 ± 14.0 years, 118 males, 96 previous overt bleeding, 106 with occult bleeding). All patients underwent immunochemical FOBTs twice prior to CE. Three experienced endoscopists independently reviewed CE videos. All reviews and consensus meeting were conducted without any information on FOBT results. The prevalence of SBDs was compared between patients with positive and negative FOBT.RESULTS: CE revealed SBDs in 72 patients(36%). FOBT was positive in 100 patients(50%) and negative in 102(50%). The prevalence of SBDs was significantly higher in patients with positive FOBT than those with negative FOBT(46% vs 25%, P = 0.002). In particular, among patients with occult OGIB, the prevalence of SBDs was higher in positive FOBT group than negative FOBT group(45% vs 18%, P = 0.002). On the other hand, among patients with previous overt OGIB, there was no significant difference in the prevalence of SBDs between positive and negative FOBT group(47% vs 33%, P = 0.18). In disease specific analysis among patients with occult OGIB, the prevalence of ulcer and tumor were higher in positive FOBT group than negative FOBT group. In multivariate analysis, only positive FOBT was a predictive factors of SBDs in patients with OGIB(OR = 2.5, 95%CI: 1.4-4.6, P = 0.003). Furthermore, the trend was evidentam on g patients with occult OGIB who underwent FOBT on the same day or a day before CE. The prevalence of SBDs in positive vs negative FOBT group were 54% vs 13% in patients with occult OGIB who underwent FOBT on the same day or the day before CE(P = 0.001), while there was no significant difference between positive and negative FOBT group in those who underwent FOBT two or more days before CE(43% vs 25%, P = 0.20).CONCLUSION: The present study suggests that positive FOBT may be useful for predicting SBDs in patients with occult OGIB. Positive FOBT indicates higher likelihood of ulcers or tumors in patients with occult OGIB. Undergoing CE within a day after FOBT achieved a higher diagnostic yield for patients with occult OGIB. | Yuka Kobayashi Hirotsugu Watabe Atsuo Yamada Hirobumi Suzuki Yoshihiro Hirata Yutaka Yamaji Haruhiko Yoshida Kazuhiko Koike | 2015 | World Journal of Gastroenterology2015，21，1： | 2 |
| 18 | Can pancreatic duct stenting prevent post-ERCP pancreatitis in patients who undergo pancreatic duct guidewire placement for achieving selective biliary cannulation? A prospective randomized controlled trial显示文摘 | Kei Ito Naotaka Fujita Yutaka Noda Go Kobayashi Takashi Obana Jun Horaguchi Osamu Takasawa Shinsuke Koshita Yoshihide Kanno Takahisa Ogawa | 2010 | Journal of Gastroenterology2010，，11： | 2 |
| 19 | Contrast-enhanced sonography of pancreatic carcinoma: correlations with pathological findings显示文摘 | Kazushi Numata Yutaka Ozawa Noritoshi Kobayashi Toru Kubota Hiroshi Shimada Akinori Nozawa Yukio Nakatani Kazuya Sugimori Kenichi Matsuo Toshio Imada Katsuaki Tanaka | 2005 | Journal of Gastroenterology2005，，6： | 2 |
| 20 | 显示出与肝炎 B 病毒感染联系的微分表示的细胞的基因的鉴定显示文摘 AIM: To investigate the impact of hepatitis B virus (HBV) infection on cellular gene expression, by conducting both in vitro and in vivo studies. METHODS: Knockdown of HBV was targeted by stable expression of short hairpin RNA (shRNA) in huH-1 cells. Cellular gene expression was compared using a human 30K cDNA microarray in the cells and quantified by real-time reverse transcription-polymerase chain reaction (RT-PCR) (qRT-PCR) in the cells, hepatocellular carcinoma (HCC) and surrounding non-cancerous liver tissues (SL). RESULTS: The expressions of HBsAg and HBx protein were markedly suppressed in the cells and in HBx transgenic mouse liver, respectively, after introduction of shRNA. Of the 30K genes studied, 135 and 103 genes were identified as being down- and up-regulated, respectively, by at least twofold in the knockdown cells. Functional annotation revealed that 85 and 62 genes were classified into four up-regulated and five down-regulated functional categories, respectively. When gene expression levels were compared between HCC and SL, eight candidate genes that were confirmed to be up- or down-regulated in the knockdown cells by both microarray and qRT-PCR analyses were not expressed as expected from HBV reduction in HCC, but had similar expression patterns in HBV- and hepatitis C virus-associated cases. In contrast, among the eight genes, only APM2 was constantly repressed in HBV non-associated tissues irrespective of HCC or SL. | Yasuo Fukuhara Takeshi Suda Makoto Kobayashi Yasushi Tamura Masato Igarashi Nobuo Waguri Hirokazu Kawai Yutaka Aoyagi | 2012 | World Journal of Hepatology2012，4，4： | 2 |
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