Masayuki Ohta

Summary

Affiliation: Oita University
Country: Japan

Publications

  1. doi request reprint Results of a national survey on laparoscopic bariatric surgery in Japan, 2000-2009
    M Ohta
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Asian J Endosc Surg 4:138-42. 2011
  2. pmc Operative timing of laparoscopic cholecystectomy for acute cholecystitis in a Japanese institute
    Masayuki Ohta
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    JSLS 16:65-70. 2012
  3. doi request reprint Initial Japanese experience with intragastric balloon placement
    Masayuki Ohta
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita, 879 5593, Japan
    Obes Surg 19:791-5. 2009
  4. doi request reprint Implications of portal vein thrombosis after splenectomy for patients with idiopathic portal hypertension
    Teijiro Hirashita
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita, 879 5593, Japan
    Surg Today 41:1475-80. 2011
  5. ncbi request reprint Prognostic value of preoperative peripheral blood monocyte count in patients with colorectal liver metastasis after liver resection
    Atsushi Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Hasama mach, Yufu, Oita 879 5593, Japan
    J Gastrointest Surg 11:596-602. 2007
  6. doi request reprint Initial Japanese experience with the LAP-BAND system
    Masayuki Ohta
    Departments of Surgery I, Oita University, Oita, Japan
    Asian J Endosc Surg 6:39-43. 2013
  7. ncbi request reprint Risk factors for early extrahepatic metastasis in patients with liver metastasis from colorectal carcinoma
    Atsushi Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, Japan
    Hepatogastroenterology 52:1840-4. 2005
  8. doi request reprint "Peripancreatic strands appearance" in pancreatic body and tail carcinoma: evaluation by multi-detector CT with pathological correlation
    Shunro Matsumoto
    Department of Radiology, Faculty of Medicine, Oita University, Hasama machi, Yufu, Japan
    Abdom Imaging 37:602-8. 2012
  9. doi request reprint Laparoscopic stomach-partitioning gastrojejunostomy is an effective palliative procedure to improve quality of life in patients with malignant gastroduodenal outlet obstruction
    Hidetoshi Eguchi
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Asian J Endosc Surg 5:153-6. 2012
  10. ncbi request reprint A small interfering RNA targeting proteinase-activated receptor-2 is effective in suppression of tumor growth in a Panc1 xenograft model
    Kentaro Iwaki
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan iwaki med oita u ac jp
    Int J Cancer 122:658-63. 2008

Detail Information

Publications60

  1. doi request reprint Results of a national survey on laparoscopic bariatric surgery in Japan, 2000-2009
    M Ohta
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Asian J Endosc Surg 4:138-42. 2011
    ..In 2010, the Japan Research Society for Endoscopic and Laparoscopic Treatments of Obesity undertook the first nationwide survey on laparoscopic bariatric surgery to evaluate its current status and outcomes...
  2. pmc Operative timing of laparoscopic cholecystectomy for acute cholecystitis in a Japanese institute
    Masayuki Ohta
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    JSLS 16:65-70. 2012
    ..However, there has been no clear consensus about it. We aimed to determine optimal timing for delayed laparoscopic cholecystectomy for acute cholecystitis...
  3. doi request reprint Initial Japanese experience with intragastric balloon placement
    Masayuki Ohta
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita, 879 5593, Japan
    Obes Surg 19:791-5. 2009
    ..We introduced intragastric balloon placement in Japan and evaluated the initial data...
  4. doi request reprint Implications of portal vein thrombosis after splenectomy for patients with idiopathic portal hypertension
    Teijiro Hirashita
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita, 879 5593, Japan
    Surg Today 41:1475-80. 2011
    ..The aim of this study was to clarify the incidence, clinical characteristics, and outcomes of PVT in patients with IPH after splenectomy...
  5. ncbi request reprint Prognostic value of preoperative peripheral blood monocyte count in patients with colorectal liver metastasis after liver resection
    Atsushi Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Hasama mach, Yufu, Oita 879 5593, Japan
    J Gastrointest Surg 11:596-602. 2007
    ....
  6. doi request reprint Initial Japanese experience with the LAP-BAND system
    Masayuki Ohta
    Departments of Surgery I, Oita University, Oita, Japan
    Asian J Endosc Surg 6:39-43. 2013
    ..In 2005, we introduced laparoscopic adjustable gastric banding (LAGB) with the LAP-BAND system into Japan. Here, we evaluate our intermediate-term results with the LAP-BAND system...
  7. ncbi request reprint Risk factors for early extrahepatic metastasis in patients with liver metastasis from colorectal carcinoma
    Atsushi Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, Japan
    Hepatogastroenterology 52:1840-4. 2005
    ..However, extrahepatic metastasis is frequently encountered within a short time postoperatively. We attempted to clarify the risk factors for extrahepatic metastasis in patients with colorectal liver metastasis...
  8. doi request reprint "Peripancreatic strands appearance" in pancreatic body and tail carcinoma: evaluation by multi-detector CT with pathological correlation
    Shunro Matsumoto
    Department of Radiology, Faculty of Medicine, Oita University, Hasama machi, Yufu, Japan
    Abdom Imaging 37:602-8. 2012
    ..The purpose of this study was to clarify the pathological and clinical implications of peripancreatic strands appearance...
  9. doi request reprint Laparoscopic stomach-partitioning gastrojejunostomy is an effective palliative procedure to improve quality of life in patients with malignant gastroduodenal outlet obstruction
    Hidetoshi Eguchi
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Asian J Endosc Surg 5:153-6. 2012
    ..The patient's quality of life rapidly deteriorates, resulting in a dismal prognosis. Stomach-partitioning gastrojejunostomy has been previously reported, and here, we evaluate the laparoscopic procedure...
  10. ncbi request reprint A small interfering RNA targeting proteinase-activated receptor-2 is effective in suppression of tumor growth in a Panc1 xenograft model
    Kentaro Iwaki
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan iwaki med oita u ac jp
    Int J Cancer 122:658-63. 2008
    ..PAR-2-specific siRNA inhibited growth of human pancreatic cancer cells both in vitro and in vivo. Blockade of PAR-2 signaling by siRNA may be a novel strategy to treat pancreatic cancer...
  11. doi request reprint Additional effect of visceral fat resection in an obese rat model of gastric banding
    Yuichi Endo
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita, 879 5593, Japan
    Obes Surg 19:777-82. 2009
    ..The aim of this study was to clarify the additional effect of visceral fat resection in an obese rat model of gastric banding...
  12. ncbi request reprint Chemokine receptor CCR6 as a prognostic factor after hepatic resection for hepatocellular carcinoma
    Hiroki Uchida
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    J Gastroenterol Hepatol 21:161-8. 2006
    ..The aim of this study was to determine whether the interaction between chemokine receptor 6 (CCR6) and its ligand, macrophage inflammatory protein-3 alpha (MIP-3alpha), correlates with metastasis of hepatocellular carcinoma (HCC)...
  13. ncbi request reprint Analysis of preoperative prognostic factors for long-term survival after hepatic resection of liver metastasis of colorectal carcinoma
    Atsushi Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, Oita 879 5593, Japan
    J Gastrointest Surg 9:374-80. 2005
    ..Survival rates did not differ between resection patients with three risk factors and nonresection patients. Therefore, hepatic resection may be appropriate for patients with fewer than three risk factors...
  14. pmc Expression of matrix metalloproteinase-7 is an unfavorable prognostic factor in intrahepatic cholangiocarcinoma
    Teijiro Hirashita
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita, 879 5593, Japan
    J Gastrointest Surg 16:842-8. 2012
    ..The matrix metalloproteinases (MMPs) are known to be related to tumor viability. The aim of this study was to evaluate the prognostic significance of clinicopathological and immunohistochemical characteristics of resected IHCC...
  15. ncbi request reprint Adenomyomatous hyperplasia of the common bile duct: report of a case
    Kentaro Iwaki
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Oita 879 5593, Japan
    Surg Today 38:85-9. 2008
    ..When a diagnosis of adenomyomatous hyperplasia of the CBD is difficult to make both preoperatively and intraoperatively, then a radical surgical procedure, such as a pancreatoduodenectomy, may be an effective treatment alternative...
  16. ncbi request reprint Ampullary cancer and preoperative jaundice: possible indication of the minimal surgery
    Hiroki Uchida
    Department of Surgery I, Oita University, Faculty of Medicine, 1 1 Hasama machi, Yufu, Oita 879 5593, Japan
    Hepatogastroenterology 56:1194-8. 2009
    ..Obstructive jaundice is common symptom of carcinoma of the ampulla of Vater. In the present study we evaluated association between preoperative jaundice and prognosis and possible indication of the minimal surgery...
  17. doi request reprint Lymphatic invasion: an important prognostic factor for stages T1b-T3 gallbladder cancer and an indication for additional radical resection of incidental gallbladder cancer
    Kohei Shibata
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Hasama machi Yufu, Oita 879 5593, Japan
    World J Surg 33:1035-41. 2009
    ....
  18. doi request reprint Pylorus-preserving pancreaticoduodenectomy in patients undergoing chronic hemodialysis
    Hiroki Uchida
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Hasama machi, Yufu, Oita, 879 5593, Japan
    Surg Today 38:1152-4. 2008
    ..A PpPD may therefore be safe and feasible even in patients receiving chronic hemodialysis...
  19. ncbi request reprint Laparoscopic splenectomy in patients with inflammatory pseudotumor of the spleen: Report of 2 cases and review of the literature
    Hiroki Uchida
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Surg Laparosc Endosc Percutan Tech 16:182-6. 2006
    ..Preoperative diagnosis of a splenic inflammatory pseudotumor is very difficult. However, laparoscopic splenectomy is safe and beneficial treatment for this tumor and should be performed in cases in which it is diagnosed...
  20. doi request reprint Increased heat-shock protein 90 expression contributes to impaired adaptive cytoprotection in the gastric mucosa of portal hypertensive rats
    Masayuki Tominaga
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    J Gastroenterol Hepatol 24:1136-41. 2009
    ..The aim of this study was to investigate the relation between adaptive cytoprotection after exposure to ethanol and gastric expression of Hsp90 in PHT rats...
  21. doi request reprint Metastasis of hepatocellular carcinoma to spleen and small intestine
    Kentaro Iwaki
    First Department of Surgery, Oita University Faculty of Medicine, 1 1 Hasama machi, Yufu, Oita 879 5593, Japan
    J Hepatobiliary Pancreat Surg 15:213-9. 2008
    ..Both the splenic and jejunal tumors were diagnosed pathologically as metastases from the HCC. After repeated treatment for HCC, metastases can appear in various organs; thus, careful observation is necessary during follow-up...
  22. doi request reprint Laparoscopic distal pancreatectomy and open distal pancreatectomy: a nonrandomized comparative study
    Toshifumi Matsumoto
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Surg Laparosc Endosc Percutan Tech 18:340-3. 2008
    ..No difference in morbidity or inflammatory response was observed between the 2 groups. LDP for benign or borderline malignant disease of the pancreas provides benefits without increasing morbidity...
  23. doi request reprint Splenectomy for hypersplenism caused by adult T-cell leukemia: report of a case
    Yuichi Endo
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita, 879 5593, Japan
    Surg Today 38:1148-51. 2008
    ..Splenectomy should be considered as an optional treatment for hypersplenism caused by ATL when hypersplenism cannot be controlled by chemotherapy in patients without a high surgical risk...
  24. doi request reprint A comparative study of the long-term outcomes after laparoscopy-assisted and open left lateral hepatectomy for hepatocellular carcinoma
    Yuichi Endo
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Surg Laparosc Endosc Percutan Tech 19:e171-4. 2009
    ..The aims of this study were to assess our results of laparoscopy-assisted left lateral hepatectomy for hepatocellular carcinoma (HCC) and to compare them with those of open conventional procedures...
  25. ncbi request reprint Factors predicting recurrence after resection of pancreatic ductal carcinoma
    Kohei Shibata
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Pancreas 31:69-73. 2005
    ..Pancreatic ductal carcinoma frequently recurs postoperatively, and we analyzed clinicopathological features of patients treated by surgical resection to find predictors of postoperative recurrence...
  26. ncbi request reprint Improved long-term survival after liver resection for hepatocellular carcinoma in the modern era: retrospective study from HCV-endemic areas
    Atsushi Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama, Oita, 879 5593, Japan
    World J Surg 30:1567-78. 2006
    ..It remains unclear whether recent progress in perioperative management and treatment for recurrent hepatocellular carcinoma (HCC) has improved patient outcomes in hepatitis C virus-endemic areas...
  27. doi request reprint Prediction of the surgical difficulty of single-port laparoscopic cholecystectomy
    Yukio Iwashita
    Department of Surgery I, Oita University Faculty of Medicine, Yufu, Oita, Japan
    Surg Laparosc Endosc Percutan Tech 22:514-7. 2012
    ..Moreover, the high-difficulty group had a higher rate of insertion of an additional trocar than the low-difficulty group. Thus, the difficulty of single-port laparoscopic cholecystectomy is well predicted using the difficulty score...
  28. doi request reprint A comparative study of gastric banding and sleeve gastrectomy in an obese diabetic rat model
    Takashi Masuda
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita, 879 5593, Japan
    Obes Surg 21:1774-80. 2011
    ..Laparoscopic sleeve gastrectomy (SG) is now a typical restrictive bariatric procedure. The aim of this study was to evaluate the efficacy of SG in comparison with gastric banding (GB) in an obese diabetic rat model...
  29. doi request reprint Extrahepatic bile duct cancer: invasion of the posterior hepatic plexuses--evaluation using multidetector CT
    Yasunari Yamada
    Departments of Radiology, Oita University Faculty of Medicine, Oita, Japan
    Radiology 263:419-28. 2012
    ..To assess the utility of axial and coronal reformatted multidetector computed tomographic (CT) images in the evaluation of the invasion of posterior hepatic plexuses by extrahepatic bile duct cancer...
  30. doi request reprint Effects of visceral fat resection and gastric banding in an obese diabetic rat model
    Teijiro Hirashita
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita 879 5593, Japan
    Surgery 151:6-12. 2012
    ..This study aimed to clarify the effects of visceral fat resection and gastric banding in an obese diabetic rat model...
  31. ncbi request reprint Reovirus inhibits the peritoneal dissemination of pancreatic cancer cells in an immunocompetent animal model
    Seitaro Hirano
    Department of Surgery I, Oita University Faculty of Medicine, Oita 879 5593, Japan
    Oncol Rep 21:1381-4. 2009
    ..There were no serious side effects observed in this study. These data suggested that intraperitoneal administration of reovirus might be an effective form of oncolytic viral therapy for peritoneal dissemination of pancreatic cancer...
  32. doi request reprint Increased levels of both carbohydrate antigen 19-9 and duke pancreatic monoclonal antigen type 2 reflect postoperative prognosis in patients with pancreatic carcinoma
    Kohei Shibata
    Department of Gastroenterological Surgery, Oita University Faculty of Medicine, Oita, Japan
    Pancreas 38:619-24. 2009
    ..It is important to identify useful tumor markers for the prediction of postoperative outcomes in patients with pancreatic carcinoma (PC)...
  33. ncbi request reprint Consensus interferon enhances the anti-proliferative effect of 5-fluorouracil on human hepatoma cells via downregulation of dihydropyrimidine dehydrogenase expression
    Jian Dou
    Department of Surgery I, Faculty of Medicine, Oita University, Oita 879 5593, Japan
    Liver Int 25:148-52. 2005
    ..The aim of this study was to investigate whether interferon (IFN)-alpha influences expression of 5-FU catabolic or target-related enzymes in human hepatoma cells...
  34. ncbi request reprint [Endoscopic and laparoscopic treatments for morbid obesity--endoscopic intragastric balloon placement and laparoscopic adjustable gastric banding]
    Seiichiro Kai
    Department of Surgery I, Oita University Faculty of Medicine
    Nihon Rinsho 67:392-7. 2009
    ..There was no serious complication after both the treatments. IGB and LAGB are safe and effective treatments for Japanease patients with morbid obesity...
  35. ncbi request reprint Prognostic value of preoperative peripheral blood monocyte count in patients with hepatocellular carcinoma
    Atsushi Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Surgery 139:755-64. 2006
    ..We sought to clarify the prognostic value of preoperative peripheral blood leukocyte subset counts, especially the absolute monocyte count, in HCC patients who have undergone hepatic resection...
  36. pmc Direct invasion to the colon by hepatocellular carcinoma: report of two cases
    Teijiro Hirashita
    Department of Surgery I, Oita University Faculty of Medicine, Yuhu, Oita 879 5593, Japan
    World J Gastroenterol 14:4583-5. 2008
    ..Although the prognosis of HCC that has invaded the colon is generally poor due to the advanced stage of the disease, surgical resection may be a favorable treatment option in patients with a good general condition...
  37. doi request reprint Protease-activated receptor-2 regulates cyclooxygenase-2 expression in human bile duct cancer via the pathways of mitogen-activated protein kinases and nuclear factor kappa B
    Hidetoshi Eguchi
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Hasama machi, Yufu, Oita 879 5593, Japan
    J Hepatobiliary Pancreat Sci 18:147-53. 2011
    ..The aim of this study was to determine whether PAR-2 activation can regulate COX-2 expression via mitogen-activated protein kinases (MAPKs) and nuclear factor kappa B (NF-κB) in human bile duct cancer cells...
  38. ncbi request reprint Increased mRNA expression of chemokines in hepatocellular carcinoma with tumor-infiltrating lymphocytes
    Seitaro Hirano
    Department of Surgery I, Oita University Faculty of Medicine, Yufu, Oita, Japan
    J Gastroenterol Hepatol 22:690-6. 2007
    ..The purpose of the present study was to estimate the correlation between mRNA expression of chemokines and tumor-infiltrating lymphocytes in HCC...
  39. ncbi request reprint An extramural gastrointestinal stromal tumor of the duodenum mimicking a pancreatic head tumor
    Hiroki Uchida
    First Department of Surgery, Oita University Faculty of Medicine, 1 1 Hasama machi, Oita 879 5593, Japan
    J Hepatobiliary Pancreat Surg 12:324-7. 2005
    ..Therefore, this neoplasm was finally diagnosed as a duodenal GIST of the uncommitted type. This is a rare case of a duodenal GIST with exclusively extramural growth mimicking a pancreatic head tumor...
  40. ncbi request reprint Prominent hepatic encephalopathy 19 years after splenopneumopexy in Budd-Chiari syndrome
    Masayuki Tominaga
    First Department of Surgery, Oita University Faculty of Medicine, 1 1 Hasama machi, Yufu, Oita 879 5593, Japan
    J Hepatobiliary Pancreat Surg 14:200-3. 2007
    ..Because hepatic encephalopathy can appear after splenopneumopexy, long-term follow-up may be necessary in patients with Budd-Chiari syndrome who are treated by splenopneumopexy...
  41. doi request reprint Risk factors of liver failure after right-sided hepatectomy
    Teijiro Hirashita
    Department of Surgery I, Faculty of Medicine, Oita University, 1 1 Idaigaoka, Hasama machi, Yufu, Oita 879 5593, Japan Electronic address
    Am J Surg 206:374-9. 2013
    ..To prevent hepatic failure after major hepatectomy, it is important to assess preoperative factors related to liver failure...
  42. ncbi request reprint Expression of endothelin receptors in the gastric mucosa of portal hypertensive rats
    Seiichiro Kai
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    J Gastroenterol Hepatol 21:242-50. 2006
    ..The aim of the present study was to evaluate expression of endothelin receptors and their roles in the portal hypertensive gastric mucosa...
  43. ncbi request reprint Reduction of ethanol-induced injury in portal hypertensive gastric mucosa of rats by induction of heat shock protein 72 by geranylgeranylacetone
    Seiichiro Kai
    Department of Surgery I, Oita University Faculty of Medicine, Yufu, Oita, Japan
    Wound Repair Regen 15:875-80. 2007
    ..The induction of HSP 72 by GGA may therefore effectively prevent mucosal injury in the PHT stomach...
  44. ncbi request reprint Malignant serous cystic neoplasm of the pancreas: report of a case and review of the literature
    Toshifumi Matsumoto
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Idaigaoka Hasama machi, Oita 879 5593, Japan
    J Clin Gastroenterol 39:253-6. 2005
    ..In general, serous cystic neoplasms of the pancreas are thought to be benign. Malignant serous cystic neoplasm of the pancreas is a rare clinical entity...
  45. pmc Two-stage laparoscopic resection of colon cancer and metastatic liver tumour
    Yukio Iwashita
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    J Minim Access Surg 8:152-3. 2012
    ..The tumours were treated in two stages. Both post-operative courses were uneventful, and there has been no recurrence during the 8 months since the second procedure...
  46. ncbi request reprint Analysis of risk factors for massive intraoperative bleeding during laparoscopic splenectomy
    Masayuki Ohta
    First Department of Surgery, Oita University Faculty of Medicine, 1 1 Idaigaoka, Hasama machi, Yufu, Oita, 879 5593, Japan
    J Hepatobiliary Pancreat Surg 12:433-7. 2005
    ..Laparoscopic splenectomy is occasionally converted to open surgery due to massive intraoperative bleeding. The aim of this study was to identify the risk factors for massive bleeding during laparoscopic splenectomy...
  47. doi request reprint Intraductal papillary mucinous neoplasms of the pancreas complicated with intraductal hemorrhage, perforation, and fistula formation: CT and MR imaging findings with pathologic correlation
    Yasunari Yamada
    Department of Radiology, Oita University Faculty of Medicine, Hasama machi, Yufu, Japan
    Abdom Imaging 37:100-9. 2012
    ..To correlate the CT and MR images with pathologic findings on intraductal papillary mucinous neoplasms (IPMNs) complicated with intraductal hemorrhage, perforation, and fistula...
  48. doi request reprint Dihydrolipoyl histidinate zinc complex, a new antioxidant, attenuates hepatic ischemia-reperfusion injury in rats
    Takashi Masuda
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    J Gastroenterol Hepatol 26:1652-8. 2011
    ..The aim of this study was to evaluate the protective effect of dihydrolipoyl histidinate zinc complex (DHLHZn) on oxidative damage after severe hepatic I/R injury...
  49. ncbi request reprint Simultaneous operation of laparoscopy-assisted distal gastrectomy with laparoscopic cholecystectomy
    Takahiro Hiratsuka
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Hepatogastroenterology 54:1645-7. 2007
    ..However, there has been no report on simultaneous operation of LADG and LC. This study aimed to evaluate the combined use of these 2 procedures...
  50. ncbi request reprint Efficacy of oncolytic reovirus against liver metastasis from pancreatic cancer in immunocompetent models
    Yoshihisa Himeno
    Department of Surgery I, Oita University Faculty of Medicine, Oita 879 5593, Japan
    Int J Oncol 27:901-6. 2005
    ....
  51. ncbi request reprint [Endoscopic and laparoscopic managements for morbidly obese patients]
    Masayuki Ohta
    Department of Surgery I, Oita University Faculty of Medicine
    Nihon Rinsho 64:697-701. 2006
  52. ncbi request reprint An obese rat model of bariatric surgery with gastric banding
    Yuichi Endo
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Obes Surg 17:815-9. 2007
    ..The aims of this study were to establish an obese rat model of gastric banding and to determine whether the model would replicate the procedure of human gastric banding in terms of weight loss and metabolic parameters...
  53. doi request reprint Increased oxidative stress may lead to impaired adaptive cytoprotection in the gastric mucosa of portal hypertensive rat
    Yuichiro Kawano
    Department of Surgery I, Oita University Faculty of Medicine, Yufu, Oita, Japan
    J Gastroenterol Hepatol 28:639-44. 2013
    ..In the gastric mucosa of portal hypertensive rats, adaptive cytoprotection against ethanol-induced damage is impaired. The aim of this study was to determine relation between impaired adaptive cytoprotection and oxidative stress...
  54. ncbi request reprint Microsatellite distribution and indication for locoregional therapy in small hepatocellular carcinoma
    Atsushi Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    Cancer 103:299-306. 2005
    ..To clarify the indication for locoregional therapy for small HCC tumors, the authors measured the distance of microsatellites from the main tumor and analyzed the relation between this distance and clinicopathologic factors...
  55. ncbi request reprint Protease-activated receptor-2 regulates cell proliferation and enhances cyclooxygenase-2 mRNA expression in human pancreatic cancer cells
    Kazuhiro Yada
    Department of Surgery I, Oita University Faculty of Medicine, Oita, Japan
    J Surg Oncol 89:79-85. 2005
    ..In the present study, we examined whether PAR-2 activation regulates cell proliferation and COX-2 expression by pancreatic cancer cells...
  56. ncbi request reprint Dendritic cell immunotherapy with poly(D,L-2,4-diaminobutyric acid)-mediated intratumoral delivery of the interleukin-12 gene suppresses tumor growth significantly
    Yukio Iwashita
    Department of Surgery I, Oita University Faculty of Medicine, Hasama machi, Oita 879 5593, Japan
    Cancer Sci 96:303-7. 2005
    ....
  57. ncbi request reprint [Current status of laparoscopic bariatric surgery]
    Masayuki Ohta
    Department of Surgery I, Oita University Faculty of Medicine
    Nihon Rinsho 68:1345-8. 2010
    ..Recently, several bariatric procedures have been also introduced into Japan, and their excellent results in Japanese patients have been already reported...
  58. ncbi request reprint Protease-activating-receptor-2 is frequently expressed in papillary adenocarcinoma of the gallbladder
    Kohei Shibata
    Department of Surgery I, Faculty of Medicine, Oita University, Oita 879 5593, Japan
    Oncol Rep 12:1013-6. 2004
    ..001), and lower clinical stage (p=0.02). PAR-2 is frequently expressed in papillary adenocarcinoma of the gallbladder. Trypsin may play an important role for carcinogenesis of the gallbladder through PAR-2 signaling...
  59. ncbi request reprint Extrapancreatic neural plexus invasion by carcinomas of the pancreatic head region: evaluation using thin-section helical CT
    Hui Tian
    Department of Radiology, Oita University Faculty of Medicine, Hasama machi, Yufu, Oita, 879 5593, Japan
    Radiat Med 25:141-7. 2007
    ..The aim of this study was to determine the computed tomographic (CT) criteria for diagnosing the second portion of the extrapancreatic neural plexus (PLX-II) invasion by carcinoma of the pancreatic head region on thin-section helical CT...
  60. ncbi request reprint Laparoscopic cholecystectomy for a double gallbladder of the duodenal type
    Atsushi Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, Koga Hospital, Oita, Japan
    Surg Laparosc Endosc Percutan Tech 15:355-8. 2005
    ..To our knowledge, this is the first reported case of double gallbladder of the duodenal type that was diagnosed preoperatively and treated successfully by laparoscopic removal...