Katsuhisa Omagari

Summary

Affiliation: Siebold University of Nagasaki
Country: Japan

Publications

  1. pmc Serum alanine aminotransferase concentration as a predictive factor for the development or regression of fatty liver
    Katsuhisa Omagari
    Division of Nutritional Sciences, Graduate School of Human Health Science, University of Nagasaki, Siebold, 1 1 1 Manabino, Nagayo cho, Nagasaki 851 2195, Japan
    J Clin Biochem Nutr 49:200-6. 2011
  2. pmc Predictive factors for the development or regression of Fatty liver in Japanese adults
    Katsuhisa Omagari
    Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki, Siebold, 1 1 1 Manabino, Nagayo cho, Nagasaki 851 2195, Japan
    J Clin Biochem Nutr 45:56-67. 2009
  3. ncbi request reprint Mental, physical, dietary, and nutritional effects on irritable bowel syndrome in young Japanese women
    Katsuhisa Omagari
    Department of Nutrition, Faculty of Nursing and Nutrition, University of Nagasaki, Japan
    Intern Med 52:1295-301. 2013
  4. doi request reprint Olive leaf extract prevents spontaneous occurrence of non-alcoholic steatohepatitis in SHR/NDmcr-cp rats
    Katsuhisa Omagari
    Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki, Siebold, Nagasaki, Japan
    Pathology 42:66-72. 2010
  5. doi request reprint Effects of a long-term high-fat diet and switching from a high-fat to low-fat, standard diet on hepatic fat accumulation in Sprague-Dawley rats
    Katsuhisa Omagari
    Department of Nutrition, Faculty of Nursing and Nutrition, University of Nagasaki, Siebold, 1 1 1 Manabino, Nagayo cho, Nagasaki, 851 2195, Japan
    Dig Dis Sci 53:3206-12. 2008
  6. ncbi request reprint Mucosal concentrations of proinflammatory cytokines and chemokines at gastric cardia: implication of Helicobacter pylori infection and gastroesophageal reflux
    Hajime Isomoto
    Department of Endoscopy, Nagasaki University School of Medicine, Nagasaki, Japan
    Am J Gastroenterol 99:1063-8. 2004
  7. ncbi request reprint Clinicopathological study of nonalcoholic fatty liver disease in Japan: the risk factors for fibrosis
    Hisamitsu Miyaaki
    The First Department of Internal Medicine, Nagasaki University School of Medicine, Sakamoto, Nagasaki, Japan
    Liver Int 28:519-24. 2008
  8. ncbi request reprint Enhanced expression of interleukin-8 and activation of nuclear factor kappa-B in endoscopy-negative gastroesophageal reflux disease
    Hajime Isomoto
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Shunkaikai Inoue Hospital, Nagasaki, Japan
    Am J Gastroenterol 99:589-97. 2004
  9. ncbi request reprint Relation among plasma ghrelin level, gastric emptying, and psychologic condition in patients with functional dyspepsia
    Ken Ichi Takamori
    Second Department of Internal Medicine, Nagasaki University School of Medicine, National Nagasaki Medical Center, Nagasaki, Japan
    J Clin Gastroenterol 41:477-83. 2007
  10. ncbi request reprint Autoimmune pancreatitis with extreme elevation of DUPAN-2
    Shiho Mishima
    Department of Internal Medicine, Nagasaki Municipal Hospital, Nagasaki, Japan
    Intern Med 46:377-81. 2007

Collaborators

Detail Information

Publications31

  1. pmc Serum alanine aminotransferase concentration as a predictive factor for the development or regression of fatty liver
    Katsuhisa Omagari
    Division of Nutritional Sciences, Graduate School of Human Health Science, University of Nagasaki, Siebold, 1 1 1 Manabino, Nagayo cho, Nagasaki 851 2195, Japan
    J Clin Biochem Nutr 49:200-6. 2011
    ....
  2. pmc Predictive factors for the development or regression of Fatty liver in Japanese adults
    Katsuhisa Omagari
    Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki, Siebold, 1 1 1 Manabino, Nagayo cho, Nagasaki 851 2195, Japan
    J Clin Biochem Nutr 45:56-67. 2009
    ..Our present data suggest that control of body weight in men and the percentage body fat in women are particularly important for the prevention or treatment of fatty liver...
  3. ncbi request reprint Mental, physical, dietary, and nutritional effects on irritable bowel syndrome in young Japanese women
    Katsuhisa Omagari
    Department of Nutrition, Faculty of Nursing and Nutrition, University of Nagasaki, Japan
    Intern Med 52:1295-301. 2013
    ..The aim of this study was to investigate the prevalence of IBS using the Rome III criteria in young Japanese women and to assess the effects of mental, physical, dietary and nutritional factors on IBS...
  4. doi request reprint Olive leaf extract prevents spontaneous occurrence of non-alcoholic steatohepatitis in SHR/NDmcr-cp rats
    Katsuhisa Omagari
    Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki, Siebold, Nagasaki, Japan
    Pathology 42:66-72. 2010
    ..We aimed to investigate the preventive effects of olive leaf extract on hepatic fat accumulation in a rat model of NASH...
  5. doi request reprint Effects of a long-term high-fat diet and switching from a high-fat to low-fat, standard diet on hepatic fat accumulation in Sprague-Dawley rats
    Katsuhisa Omagari
    Department of Nutrition, Faculty of Nursing and Nutrition, University of Nagasaki, Siebold, 1 1 1 Manabino, Nagayo cho, Nagasaki, 851 2195, Japan
    Dig Dis Sci 53:3206-12. 2008
    ..Our results demonstrate that a long-term high-fat diet can induce nonalcoholic steatohepatitis (NASH) in SD rats. Switching to a low-fat, standard diet prevented the progression of NASH, although steatosis was not improved...
  6. ncbi request reprint Mucosal concentrations of proinflammatory cytokines and chemokines at gastric cardia: implication of Helicobacter pylori infection and gastroesophageal reflux
    Hajime Isomoto
    Department of Endoscopy, Nagasaki University School of Medicine, Nagasaki, Japan
    Am J Gastroenterol 99:1063-8. 2004
    ..Little is known about the profile of proinflammatory cytokines and chemokines in the pathogenesis of carditis...
  7. ncbi request reprint Clinicopathological study of nonalcoholic fatty liver disease in Japan: the risk factors for fibrosis
    Hisamitsu Miyaaki
    The First Department of Internal Medicine, Nagasaki University School of Medicine, Sakamoto, Nagasaki, Japan
    Liver Int 28:519-24. 2008
    ..We evaluated patients with nonalcoholic fatty liver disease (NAFLD) and compared the clinical and pathological features to identify the risk factors for NAFLD with severe fibrosis...
  8. ncbi request reprint Enhanced expression of interleukin-8 and activation of nuclear factor kappa-B in endoscopy-negative gastroesophageal reflux disease
    Hajime Isomoto
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Shunkaikai Inoue Hospital, Nagasaki, Japan
    Am J Gastroenterol 99:589-97. 2004
    ..The purpose of this study was to determine IL-8 messenger ribonucleic acid (mRNA) expression levels in endoscopy-negative GERD, along with assessment of nuclear factor kappaB (NF-kappaB) activation, which upregulates IL-8 expression...
  9. ncbi request reprint Relation among plasma ghrelin level, gastric emptying, and psychologic condition in patients with functional dyspepsia
    Ken Ichi Takamori
    Second Department of Internal Medicine, Nagasaki University School of Medicine, National Nagasaki Medical Center, Nagasaki, Japan
    J Clin Gastroenterol 41:477-83. 2007
    ..The present study was designed to investigate plasma ghrelin levels and their relation with gastric emptying and psychologic status in FD...
  10. ncbi request reprint Autoimmune pancreatitis with extreme elevation of DUPAN-2
    Shiho Mishima
    Department of Internal Medicine, Nagasaki Municipal Hospital, Nagasaki, Japan
    Intern Med 46:377-81. 2007
    ..Computed tomography showed significant regression in the size of the pancreas, and the stenosis of the main pancreatic duct was improved on ERCP. The serum level of DUPAN-2 was also markedly decreased after the treatment...
  11. doi request reprint Single-nucleotide polymorphism analysis of the multidrug resistance protein 3 gene for the detection of clinical progression in Japanese patients with primary biliary cirrhosis
    Yuki Ohishi
    Department of Pharmacotherapeutics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
    Hepatology 48:853-62. 2008
    ..021, OR 0.55, 95% CI 0.33-0.91 and P = 0.011, OR 0.24, 95% CI 0.08-0.71, respectively)...
  12. ncbi request reprint Flare-up of autoimmune hepatitis after delivery in a patient with primary biliary cirrhosis: postpartum overlap syndrome of primary biliary cirrhosis and autoimmune hepatitis
    Kazuo Ohba
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan
    Dig Dis Sci 50:201-6. 2005
  13. ncbi request reprint Modified Japan Integrated Staging is currently the best available staging system for hepatocellular carcinoma patients who have undergone hepatectomy
    Atsushi Nanashima
    Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1 7 1 Sakamoto, Nagasaki, 852 8501, Japan
    J Gastroenterol 41:250-6. 2006
    ..To determine the best predictive staging system for HCC patients, we conducted a comparative analysis of prognosis using multivariate analysis in 230 Japanese HCC patients following hepatic resection...
  14. ncbi request reprint High plasma osteopontin levels in patients with inflammatory bowel disease
    Ryosuke Mishima
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Sakamoto, Nagasaki, Japan
    J Clin Gastroenterol 41:167-72. 2007
    ..Osteopontin (OPN) plays a key role in the progression of T(H)1-immune-mediated disease in models of multiple sclerosis and rheumatoid arthritis...
  15. ncbi request reprint Intracellular balance of oxidative stress and cytoprotective molecules in damaged interlobular bile ducts in autoimmune hepatitis and primary biliary cirrhosis: In situ detection of 8-hydroxydeoxyguanosine and glutathione-S-transferase-pi
    Yoshiko Kadokawa
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan
    Hepatol Res 37:620-7. 2007
    ..However, relatively preserved intracellular glutathione may play a key role in preventing progressive bile duct loss following bile duct injury in AIH...
  16. doi request reprint Association of genes involved in bile acid synthesis with the progression of primary biliary cirrhosis in Japanese patients
    Tatsuo Inamine
    Department of Pharmacotherapeutics, Nagasaki University Graduate School of Biomedical Sciences, 1 14 Bunkyo machi, Nagasaki, 852 8521, Japan
    J Gastroenterol 48:1160-70. 2013
    ..Patients with primary biliary cirrhosis (PBC) exhibit a variety of clinical manifestations and patterns of disease progression. The aim of this study was to identify genetic determinants of PBC progression...
  17. doi request reprint Phycocyanin prevents hypertension and low serum adiponectin level in a rat model of metabolic syndrome
    Mayuko Ichimura
    Division of Nutritional Sciences, Graduate School of Human Health Science, University of Nagasaki, Siebold, Nagasaki, Japan
    Nutr Res 33:397-405. 2013
    ..Phycocyanin may be beneficial for preventing endothelial dysfunction-related diseases in metabolic syndrome...
  18. ncbi request reprint Preliminary analysis of a newly proposed prognostic scoring system (SLiDe score) for hepatocellular carcinoma
    Katsuhisa Omagari
    Second Department of Internal Medicine, Atomic Bomb Disease Institute, Nagasaki University School of Medicine, Nagasaki, Japan
    J Gastroenterol Hepatol 19:805-11. 2004
    ..Therefore, a prognostic classification of HCC should account for both tumor-related variables and liver function...
  19. ncbi request reprint Flow cytometric analysis of expression of transforming growth factor-beta and glucocorticoid-induced tumor necrosis factor receptor on CD4(+) CD25(+) T cells of patients with inflammatory bowel disease
    Maho Ikeda
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan
    Dig Dis Sci 51:178-84. 2006
    ..7 +/- 2.6 and 7.2 +/- 3.9%, respectively). The results suggest that TGF-beta is involved in the induction or sustained remission of UC...
  20. ncbi request reprint Successful treatment with cyclosporin in adult-onset Still disease manifesting as acute hepatitis with marked hyperferritinemia
    Katsuhisa Omagari
    The Second Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan
    Am J Med Sci 326:148-51. 2003
    ....
  21. ncbi request reprint Hepatic mucosa-associated lymphoid tissue lymphoma and hepatocellular carcinoma in a patient with hepatitis B virus infection
    Fuminao Takeshima
    Second Department of Internal Medicine, Nagasaki University, Graduate School of Biomedical Sciences, Nagasaki, Japan
    J Clin Gastroenterol 38:823-6. 2004
    ..These features were consistent with the diagnosis of MALT lymphoma. This is the first case report of synchronous hepatic MALT lymphoma and hepatocellular carcinoma associated with chronic hepatitis B...
  22. ncbi request reprint Impact of endoscopically minimal involvement on IL-8 mRNA expression in esophageal mucosa of patients with non-erosive reflux disease
    Yusei Kanazawa
    Second Department of Internal Medicine, Atomic Bomb Disease Institute, Nagasaki University School of Medicine, Nagasaki, Japan
    World J Gastroenterol 9:2801-4. 2003
    ..The purpose of this study was to determine IL-8 RNA expression levels in NERD patients with or without subtle mucosal changes...
  23. ncbi request reprint Primary sclerosing cholangitis associated with lupus nephritis: a rare association
    Yoshiko Kadokawa
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan
    Dig Dis Sci 48:911-4. 2003
  24. ncbi request reprint Lafutidine, a novel histamine H2-receptor antagonist, vs lansoprazole in combination with amoxicillin and clarithromycin for eradication of Helicobacter pylori
    Hajime Isomoto
    Second Department of Internal Medicine, Nagasaki University School of Medicine, 1 7 1 Sakamoto, Nagasaki, Japan
    Helicobacter 8:111-9. 2003
    ..Lafutidine is a novel potent H2 receptor antagonist with gastroprotective activities such as enhancement of gastric mucosal blood flow...
  25. ncbi request reprint Chronic visceral hypersensitivity renders defecation more susceptible to stress via a serotonergic pathway in rats
    Hitoshi Nishiyama
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Sakamoto, Nagasaki, Japan
    Dig Dis Sci 49:763-9. 2004
    ....
  26. ncbi request reprint IgA class antibodies to 2-oxo-acid dehydrogenase complex are not predictive markers of histopathological progression in primary biliary cirrhosis
    Katsuhisa Omagari
    Nagasaki University School of Medicine, Second Department of Internal Medicine, Nagasaki, Japan
    Autoimmunity 39:107-12. 2006
    ....
  27. ncbi request reprint Pseudomyxoma peritonei accompanied by intraductal papillary mucinous neoplasm of the pancreas
    Yohei Mizuta
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan
    Pancreatology 5:470-4. 2005
    ..The patient remains in good general condition with no signs of progression of PMP for 2 years, but with a gradual and progressive enlargement of the pancreatic cystic lesion...
  28. doi request reprint A polymorphism in the integrin αV subunit gene affects the progression of primary biliary cirrhosis in Japanese patients
    Tatsuo Inamine
    Department of Pharmacotherapeutics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
    J Gastroenterol 46:676-86. 2011
    ....
  29. doi request reprint Repeated ingestion of the leaf extract from Morus alba reduces insulin resistance in KK-Ay mice
    Kenichi Tanabe
    Graduate School of Human Health Science, University of Nagasaki Siebold, Nagasaki 851 2195, Japan
    Nutr Res 31:848-54. 2011
    ..Namely, repeated ingestion of the LEM-containing diet reduces insulin resistance and may delay the appearance of DM, especially type 2 DM. Therefore, daily intake of LEM may be suitable for the prevention of obesity and DM...
  30. ncbi request reprint Elevated levels of chemokines in esophageal mucosa of patients with reflux esophagitis
    Hajime Isomoto
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Sakamoto, Nagasaki, Japan
    Am J Gastroenterol 98:551-6. 2003
    ..Chemokines play a key role in the pathogenesis of various inflammatory conditions. However, there is little information on their profile in reflux esophagitis (RE). We sought to study esophageal mucosa levels of chemokines in RE...
  31. ncbi request reprint Fatty liver in non-alcoholic non-overweight Japanese adults: incidence and clinical characteristics
    Katsuhisa Omagari
    Second Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan
    J Gastroenterol Hepatol 17:1098-105. 2002
    ..Fatty liver is not uncommon in many countries, including Japan, and is mainly caused by alcohol usage and obesity. The aim of this study was to determine the incidence and causative factors of fatty liver in Japanese adults...