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25篇 您的检索式:作者名="Shin Hamada"
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1Management of acute pancreatitis in Japan: analysis of nationwide epidemiological survey显示文摘Acute pancreatitis(AP) is an acute inflammatory disease of the exocrine pancreas. In Japan, nationwide epidemiological surveys have been conducted every 4 to 5 years by the Research Committee of Intractable Pancreatic Diseases, under the support of the Ministry of Health, Labour, and Welfare of Japan. We reviewed the results of the nationwide surveys focusing on the severity assessment and changes in the therapeutic strategy for walled-off necrosis. The severity assessment system currently used in Japan consists of 9 prognostic factors and the imaging grade on contrastenhanced computed tomography. By univariate analysis, all of the 9 prognostic factors were associated with AP-related death. A multivariate analysis identified 4 out of the 9 prognostic factors(base excess or shock, renal failure, systemic inflammatory response syndrome criteria, and age) that were associated with AP-related death. Receiver-operating characteristics curve analysis showed that the area under the curve was 0.82 for these 4 prognostic factors and 0.84 for the 9 prognostic factors, suggesting the comparable utility of these 4 factors in the severity assessment. We also examined the temporal changes in treatment strategy for walled-off necrosis in Japan according to the 2003, 2007, and 2011 surveys. Step-up approaches and lessinvasive endoscopic therapies were uncommon in 2003 and 2007, but became popular in 2011. Mortality has been decreasing in patients who require intervention for walled-off necrosis. In conclusion, the nationwide survey revealed the comparable utility of 4 prognostic factors in the severity assessment and the increased use of less-invasive, step-up approaches with improved clinical outcomes in the management of walled-off necrosis.Shin Hamada Atsushi Masamune Tooru Shimosegawa 2016World Journal of Gastroenterology2016,22,28:10
2Micro RNA-320 family is downregulated in colorectal adenoma and affects tumor proliferation by targeting CDK6显示文摘AIM: To investigate the microR NA(miR NA) expression during histological progression from colorectal normal mucosa through adenoma to carcinoma within a lesion. METHODS: Using microarray, the sequential changes in miR NA expression profiles were compared in colonic lesions from matched samples; histologically, nonneoplastic mucosa, adenoma, and submucosal invasive carcinoma were microdissected from a tissue sample. Cell proliferation assay was performed to observe the effect of miR NA, and its target genes were predicted using bioinformatics approaches and the expression profile of SW480 transfected with the miR NA mimics. mR NA and protein levels of the target gene in colon cancer cell lines with a mimic control or miR NA mimics were measured using qR TPCR and Western blotting. The expression levels of miR NA and target gene in colorectal tissue samples were also measured.RESULTS: Microarray analysis identified that the miR-320 family, including miR-320 a, miR-320 b, miR-320 c, miR-320 d and miR-320 e, were differentially expressed in adenomaand submucosal invasive carcinoma. The mi R-320 family, which inhibits cell proliferation, is frequently downregulated in colorectal adenoma and submucosal invasive carcinoma tissues. Seven genes including CDK6 were identified to be common in the results of gene expression array and bioinformatics analyses performed to find the target gene of the miR-320 family. We confirmed that mR NA and protein levels of CDK6 were significantly suppressed in colon cancer cell lines with miR-320 family mimics. CDK6 expression was found to increase from non-neoplastic mucosa through adenoma to submucosal invasive carcinoma tissues and showed an inverse correlation with miR-320 family expression.CONCLUSION: MiR-320 family affects colorectal tumor proliferation by targeting CDK6, plays important role in its growth, and is considered to be a biomarker for its early detection.Toshihiro Tadano Yoichi Kakuta Shin Hamada Yosuke Shimodaira Masatake Kuroha Yoko Kawakami Tomoya Kimura Hisashi Shiga Katsuya Endo Atsushi Masamune Seiichi Takahashi Yoshitaka Kinouchi Tooru Shimosegawa 2016World Journal of Gastrointestinal Oncology2016,8,7:9
3Transition of early-phase treatment for acute pancreatitis: An analysis of nationwide epidemiological survey显示文摘Treatment of acute pancreatitis(AP) is one of the critical challenges to the field of gastroenterology because of its high mortality rate and high medical costs associated with the treatment of severe cases. Early-phase treatments for AP have been optimized in Japan, and clinical guidelines have been provided. However, changes in early-phase treatments and the relationship between treatment strategy and clinical outcome remain unclear. Retrospective analysis of nationwide epidemiological data shows that time for AP diagnosis has shortened, and the amount of initial fluid resuscitation has increased over time, indicating the compliance with guidelines. In contrast, prophylactic use of broad-spectrum antibiotics has emerged. Despite the potential benefits of early enteral nutrition, its use is still limited. The roles of continuous regional arterial infusion in the improvement of prognosis and the prevention of late complications are uncertain. Furthermore, early-phase treatments have had little impact on late-phase complications, such as walledoff necrosis, surgery requirements and late(> 4 w) AP-related death. Based on these observations, earlyphase treatments for AP in Japan have approached the optimal level, but late-phase complications have become concerning issues. Early-phase treatments and the therapeutic strategy for late-phase complications both need to be optimized based on firm clinical evidence and cost-effectiveness.Shin Hamada Atsushi Masamune Tooru Shimosegawa 2017World Journal of Gastroenterology2017,23,16:6
4Granular cell tumor of the pancreas:A case report and review of literature显示文摘Granular cell tumors,also called Abrikossof's tumors,were originally described by Abrikossof A in 1926.The f irst case of a pancreatic granular cell tumor was described in 1975 and only 6 cases have been reported.We describe a case of granular cell tumor in the pancreas showing pancreatic duct obstruction.Because imaging studies showed f indings compatible with those of pancreatic carcinoma,the patient underwent distal pancreatectomy.Histological examination showed that the tumor consisted of a nested growth of large tumor cells with ample granular cytoplasm and small round nuclei.The tumor cells expressed S-100 protein and were stained with neuron-specific enolase and periodic acid-Schiff,but were negative for desmin,vimentin,and cytokeratin.The resected tumor was diagnosed as a granular cell tumor.To our knowledge,this is the seventh case of Granular cell tumor of the pancreas to be reported.Atsushi Kanno Kennichi Satoh Morihisa Hirota Shin Hamada Jun Umino Hiromichi Itoh Atsushi Masamune Shinichi Egawa Fuyuhiko Motoi Michiaki Unno Kazuyuki Ishida Tooru Shimosegawa 2010World Journal of Gastrointestinal Oncology2010,2,2:5
5MSX2 overexpression inhibits gemcitabine-induced caspase-3 activity in pancreatic cancer cells显示文摘AIM: To evaluate the effect of MSX2 on gemcitabineinduced caspase-3 activation in pancreatic cancer cell line Panc-1.METHODS: Using V5-tagged MSX2 expression vector,stable transfectant of MSX2 was generated from Panc-1cells (Px14 cells). Cell viability under gemcitabine administration was determined by MTT assay relative to control cell line (empty-vector transfected Panc-1 cells;P-3EV cells). Hoechst staining was used for the detection of apoptotic cell. Activation of caspase-3 was assessed using Western blotting analysis and direct measurement of caspase-3 specific activities.RESULTS: MSX2 overexpression in Panc-1 cells resulted in decreased gemcitabine-induced caspase-3 activation and increased cell viability under gemcitabine treatment in Px14 cells.CONCLUSION: MSX2 exerts repressive effects on gemcitabine-induced apoptotic pathway. This novel apoptosis-regulating function of MSX2 may provide a new therapeutic target for pancreatic cancer.Shin Hamada Kennichi Satoh Kenji Kimura Atsushi Kanno Atsushi Masamune Tooru Shimosegawa 2005World Journal of Gastroenterology2005,11,43:4
6IgG4-unrelated type 1 autoimmune pancreatitis显示文摘A 50-year-old male was referred to our hospital for the evaluation of hyperproteinemia.Fluorodeoxyglucose positron emission tomography revealed high fluorodeoxyglucose uptake in the pancreas,bilateral lacrimal glands,submandibular glands,parotid glands,bilateral pulmonary hilar lymph nodes,and kidneys.Laboratory data showed an elevation of hepatobiliary enzymes,renal dysfunction,and remarkably high immunoglobulin(Ig) G levels,without elevated serum IgG4.Abdominal computed tomography revealed swelling of the pancreatic head and bilateral kidneys.Endoscopic retrograde cholangiopancreatography showed an irregular narrowing of the main pancreatic duct in the pancreatic head and stricture of the lower common bile duct.Histological examination by endoscopic ultrasonography-guided fine-needle aspiration revealed findings of lymphoplasmacytic sclerosing pancreatitis without IgG4-positive plasma cells.Abnormal laboratory values and the swelling of several organs were improved by the treatment with steroids.The patient was diagnosed as having type 1 autoimmune pancreatitis(AIP) based on the International Consensus Diagnostic Criteria.Therefore,we encountered a case of compatible type 1 AIP without elevated levels of serum IgG4 or IgG4-positive plasma cells.This case suggests that AIP phenotypes are not always associated with IgG4.Eriko Nakano Atsushi Kanno Atsushi Masamune Naoki Yoshida Seiji Hongo Shin Miura Tetsuya Takikawa Shin Hamada Kiyoshi Kume Kazuhiro Kikuta Morihisa Hirota Keisuke Nakayama Fumiyoshi Fujishima Tooru Shimosegawa 2015World Journal of Gastroenterology2015,21,33:3
7Pancreatic duct drainage using EUS-guided rendezvous technique for stenotic pancreaticojejunostomy显示文摘The patient was a 30-year-old female who had undergone excision of the extrahepatic bile duct and Rouxen-Y hepaticojejunostomy for congenital biliary dilatation at the age of 7.Thereafter,she suffered from recurrent acute pancreatitis due to pancreaticobiliary maljunction and received subtotal stomach-preserving pancreaticoduodenectomy.She developed a pancreatic fistula and an intra-abdominal abscess after the operation.These complications were improved by percutaneous abscess drainage and antibiotic therapy.How ever,upper abdominal discomfort and the elevation of serum pancreatic enzymes persisted due to stenosis from the pancreaticojejunostomy.Because we could not accomplish dilation of the stenosis by endoscopic retrograde cholangiopancreatography,we tried an endoscopic ultrasonography(EUS) guided rendezvous technique for pancreatic duct drainage.After transgastric puncture of the pancreatic duct using an EUS-fine needle aspiration needle,the guidewire was inserted into the pancreatic duct and finally reached to the jejunum through the stenotic anastomosis.We changed the echoendoscope to an oblique-viewing endoscope,then grasped the guidewire and withdrew it through the scope.The stenosis of the pancreaticojejunostomy was dilated up to 4 mm,and a pancreatic stent was put in place.Though the pancreatic stent was removed after three months,the patient remained symptomfree.Pancreatic duct drainage using an EUS-guided rendezvous technique was useful for the treatment of a stenotic pancreaticojejunostomy after pancreaticoduodenectomy.Tetsuya Takikawa Atsushi Kanno Atsushi Masamune Shin Hamada Eriko Nakano Shin Miura Hiroyuki Ariga Jun Unno Kiyoshi Kume Kazuhiro Kikuta Morihisa Hirota Hiroshi Yoshida Yu Katayose Michiaki Unno Tooru Shimosegawa 2013World Journal of Gastroenterology2013,19,31:3
8Diagnosis of autoimmune pancreatitis by EUS-FNA by using a 22-gauge needle based on the International Consensus Diagnostic Criteria显示文摘Atsushi Kanno Kazuyuki Ishida Shin Hamada Fumiyoshi Fujishima Jun Unno Kiyoshi Kume Kazuhiro Kikuta Morihisa Hirota Atsushi Masamune Kennichi Satoh Kenji Notohara Tooru Shimosegawa 2012Gastrointestinal Endoscopy2012,,3:3
9Circulating miR-483-3p and miR-21 is highly expressed in plasma of pancreaticcancer显示文摘Makoto Abue Misa Yokoyama Rie Shibuya Keiichi Tamai Kazunori Yamaguchi Ikuro Sato Nobuyuki Tanaka Shin Hamada Tooru Shimosegawa Kazuo Sugamura Kennichi Satoh 2015International Journal of Oncology2015,,2:3
10miR‐197 induces epithelial–mesenchymal transition in pancreatic cancer cells by targeting p120 catenin显示文摘Shin Hamada Kennichi Satoh Shin Miura Morihisa Hirota Atsushi Kanno Atsushi Masamune Kazuhiro Kikuta Kiyoshi Kume Jun Unno Shinichi Egawa Fuyuhiko Motoi Michiaki Unno Tooru Shimosegawa 2013J Cell Physiol2013,,6:3
11The angiotensin II type I receptor blocker olmesartan inhibits the growth of pancreatic cancer by targeting stellate cell activities in mice显示文摘Atsushi Masamune Shin Hamada Kazuhiro Kikuta Tetsuya Takikawa Shin Miura Eriko Nakano Tooru Shimosegawa 2013Scandinavian Journal of Gastroenterology2013,,5:2
12miR‐197 induces epithelial–mesenchymal transition in pancreatic cancer cells by targeting p120 catenin显示文摘Shin Hamada Kennichi Satoh Shin Miura Morihisa Hirota Atsushi Kanno Atsushi Masamune Kazuhiro Kikuta Kiyoshi Kume Jun Unno Shinichi Egawa Fuyuhiko Motoi Michiaki Unno Tooru Shimosegawa 2013J. Cell. Physiol2013,,6:1
13Clinical features of isolated noncompaction of the ventricular myocardium显示文摘Fukiko Ichida Yuji Hamamichi Toshio Miyawaki Yasuo Ono Tetsuro Kamiya Teiji Akagi Hiromichi Hamada Osamu Hirose Takeshi Isobe Katsuhiko Yamada Shunji Kurotobi Hiroshi Mito Toshiharu Miyake Yasuo Murakami Takeshi Nishi Makoto Shinohara Masashi Seguchi Shin 1999Journal of the American College of Cardiology1999,,1:1
14The homeobox gene MSX2 determines chemosensitivity of pancreatic cancer cells via the regulation of transporter gene ABCG2显示文摘Shin Hamada Kennichi Satoh Morihisa Hirota 2011Journal of Cellular Physiology2011,7,:1
15Mapping of centromere distances of light green and light red genes in Porphyra yezoensis (Rhodophyta, Bangiales) 显示文摘Hamada J Shin J Miura A 1994Jpn J Phycol1994,42,:1
16Clinical features of isolated noncompaction of the ventricular myocardium显示文摘Fukiko Ichida Yuji Hamamichi Toshio Miyawaki Yasuo Ono Tetsuro Kamiya Teiji Akagi Hiromichi Hamada Osamu Hirose Takeshi Isobe Katsuhiko Yamada Shunji Kurotobi Hiroshi Mito Toshiharu Miyake Yasuo Murakami Takeshi Nishi Makoto Shinohara Masashi Seguchi Shin 1999Journal of the American College of Cardiology1999,,1:1
17Pancreatic stellate cells enhance stem cell-like phenotypes in pancreatic cancer cells显示文摘Shin Hamada Atsushi Masamune Tetsuya Takikawa Noriaki Suzuki Kazuhiro Kikuta Morihisa Hirota Hirofumi Hamada Masayoshi Kobune Kennichi Satoh Tooru Shimosegawa 2012Biochemical and Biophysical Research Communications2012,,2:1
18Diagnosis of autoimmune pancreatitis by EUS-FNA by using a 22-gauge needle based on the International Consensus Diagnostic Criteria显示文摘Atsushi Kanno Kazuyuki Ishida Shin Hamada Fumiyoshi Fujishima Jun Unno Kiyoshi Kume Kazuhiro Kikuta Morihisa Hirota Atsushi Masamune Kennichi Satoh Kenji Notohara Tooru Shimosegawa 2012Gastrointestinal Endoscopy2012,,3:1
19miR‐197 induces epithelial–mesenchymal transition in pancreatic cancer cells by targeting p120 catenin显示文摘Shin Hamada Kennichi Satoh Shin Miura Morihisa Hirota Atsushi Kanno Atsushi Masamune Kazuhiro Kikuta Kiyoshi Kume Jun Unno Shinichi Egawa Fuyuhiko Motoi Michiaki Unno Tooru Shimosegawa 2013J Cell Physiol2013,,6:1
20miR-210 regulates the interaction between pancreatic cancer cells and stellate cells显示文摘Tetsuya Takikawa Atsushi Masamune Shin Hamada Eriko Nakano Naoki Yoshida Tooru Shimosegawa 2013Biochemical and Biophysical Research Communications2013,,:1
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