Wataru Sakamoto

Summary

Affiliation: Hokkaido University
Country: Japan

Publications

  1. ncbi Inhibition of macrophage migration inhibitory factor secretion from macrophages by vitamin E
    W Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo 060, Japan
    Biochim Biophys Acta 1404:427-34. 1998
  2. ncbi Relationship of coffee consumption with risk factors of atherosclerosis in rats
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo, Japan
    Ann Nutr Metab 49:149-54. 2005
  3. ncbi Homocysteine attenuates the expression of osteocalcin but enhances osteopontin in MC3T3-E1 preosteoblastic cells
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo 060, Hokkaido, Japan
    Biochim Biophys Acta 1740:12-6. 2005
  4. ncbi The effect of vitamin K2 on bone metabolism in aged female rats
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, 060 8586, Sapporo, Japan
    Osteoporos Int 16:1604-10. 2005
  5. ncbi Coffee increases levels of urinary 8-hydroxydeoxyguanosine in rats
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo 060, Japan
    Toxicology 183:255-63. 2003
  6. ncbi Secretion of macrophage migration inhibitory factor differs from interleukin-6 in hydrogen peroxide- and LPS-stimulated human fibroblasts
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo, Japan
    Int Immunopharmacol 2:1123-31. 2002
  7. ncbi Effect of coffee consumption on bone metabolism
    W Sakamoto
    Department of Biochemistry, School of Medicine, Hokkaido University, Sapporo, Japan
    Bone 28:332-6. 2001
  8. ncbi Effect of vitamin E on production of macrophage migration inhibitory factor (MIF) by macrophages
    W Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo, Japan
    Biofactors 10:139-43. 1999
  9. ncbi A screening test for capsaicin-stimulated salivary flow using filter paper: a study for diagnosis of hyposalivation with a complaint of dry mouth
    Takashi Kanehira
    Division of Preventive Dentistry, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 112:73-80. 2011
  10. ncbi Bone metabolism and oxidative stress in postmenopausal rats with iron overload
    Haruo Isomura
    Department of Biochemistry, School of Dentistry, Hokkaido University, North 13 West 7 Kita-ku, Hokkaido, Sapporo 060, Japan
    Toxicology 197:93-100. 2004

Collaborators

  • J Nishihira
  • K Fujie
  • M Ozaki
  • Etsuko Maeshima
  • Hiroyuki Kawahigashi
  • Keisuke Yoshida
  • Takashi Kanehira
  • Manabu Morita
  • Tomotaka Yamaguchi
  • Yusuke Kato
  • Tomoya Asano
  • Haruo Isomura
  • Akemi Matsuda
  • Kozo Asano
  • Yoshihiro Fujii
  • Takae Abe
  • Kouzo Asano
  • Junji Takehara
  • Yoshinori Fujii
  • Haruhiko Kashiwazaki
  • Eiko Miura
  • Ryo Matsushima
  • Yasunori Machida
  • Tadashi Iizuka
  • Shunsuke Kurei
  • Yasushi Yoshioka
  • Nobuo Inoue
  • Kazuhiko Takahashi
  • Kouichi Shibata
  • Hiroshi Izumi
  • Gen Takebe

Detail Information

Publications17

  1. ncbi Inhibition of macrophage migration inhibitory factor secretion from macrophages by vitamin E
    W Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo 060, Japan
    Biochim Biophys Acta 1404:427-34. 1998
    ..Taken together, these results indicate that vitamin E may contribute to the regulation of immune responses through regulation of MIF secretion...
  2. ncbi Relationship of coffee consumption with risk factors of atherosclerosis in rats
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo, Japan
    Ann Nutr Metab 49:149-54. 2005
    ..In experimental animals we investigated the relationship of coffee consumption with risk factors of atherosclerosis such as cholesterol, homocysteine, oxidative stress and inflammatory cytokines...
  3. ncbi Homocysteine attenuates the expression of osteocalcin but enhances osteopontin in MC3T3-E1 preosteoblastic cells
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo 060, Hokkaido, Japan
    Biochim Biophys Acta 1740:12-6. 2005
    ..These findings suggest that hyperhomocystenemia appears to be an independent risk factor for osteoporosis by disturbing osteoblast function...
  4. ncbi The effect of vitamin K2 on bone metabolism in aged female rats
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, 060 8586, Sapporo, Japan
    Osteoporos Int 16:1604-10. 2005
    ..These results suggest that high-dose vitamin K2 supplementation neither improves lowered antioxidant levels nor stimulates bone formation in aged rats...
  5. ncbi Coffee increases levels of urinary 8-hydroxydeoxyguanosine in rats
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo 060, Japan
    Toxicology 183:255-63. 2003
    ..However, chlorogenic acid and cupric chloride decreased the formation of 8-OHdG in the presence of H(2)O(2). Based on these results, a possible mechanism of 8-OHdG formation in vivo by chlorogenic acid is discussed...
  6. ncbi Secretion of macrophage migration inhibitory factor differs from interleukin-6 in hydrogen peroxide- and LPS-stimulated human fibroblasts
    Wataru Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo, Japan
    Int Immunopharmacol 2:1123-31. 2002
    ..Taken together, these results suggest that MIF secretion differs from IL-6 via LPS-mediated signaling pathways...
  7. ncbi Effect of coffee consumption on bone metabolism
    W Sakamoto
    Department of Biochemistry, School of Medicine, Hokkaido University, Sapporo, Japan
    Bone 28:332-6. 2001
    ..In conclusion, the present study strongly indicates that coffee does not stimulate bone loss in rats...
  8. ncbi Effect of vitamin E on production of macrophage migration inhibitory factor (MIF) by macrophages
    W Sakamoto
    Department of Biochemistry, School of Dentistry, Hokkaido University, Sapporo, Japan
    Biofactors 10:139-43. 1999
    ..Taken together, these results indicate that vitamin E may contribute to the regulation of inflammatory and immune responses through regulation of MIF secretion, possibly by modulating macrophage-membrane architecture...
  9. ncbi A screening test for capsaicin-stimulated salivary flow using filter paper: a study for diagnosis of hyposalivation with a complaint of dry mouth
    Takashi Kanehira
    Division of Preventive Dentistry, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 112:73-80. 2011
    ..The purpose of this study was to develop a simple screening technique for diagnosis of hyposalivation with dry mouth by estimation of capsaicin-stimulated salivary flow using filter paper...
  10. ncbi Bone metabolism and oxidative stress in postmenopausal rats with iron overload
    Haruo Isomura
    Department of Biochemistry, School of Dentistry, Hokkaido University, North 13 West 7 Kita-ku, Hokkaido, Sapporo 060, Japan
    Toxicology 197:93-100. 2004
    ....
  11. ncbi A pilot study of a simple screening technique for estimation of salivary flow
    Takashi Kanehira
    Lecturer, Division of Preventive Dentistry Graduate School of Dental Medicine, Hokkaido University, Hokkaido
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 108:389-93. 2009
    ..The purpose of this study was to develop a simple screening technique for estimation of salivary flow and to test the usefulness of the method for determining decreased salivary flow...
  12. ncbi A novel assay system for myeloperoxidase activity in whole saliva
    Wataru Sakamoto
    Institute of Well Being, Fuji Women s University, 061 3204 Ishikari, Hokkaido, Japan
    Clin Biochem 41:584-90. 2008
    ..The application of a novel assay system for the direct measurement of MPO (myeloperoxidase) activity in whole saliva...
  13. ncbi White leaf sectors in yellow variegated2 are formed by viable cells with undifferentiated plastids
    Yusuke Kato
    Research Institute for Bioresources, Okayama University, Kurashiki, Okayama 710 0046, Japan
    Plant Physiol 144:952-60. 2007
    ..Based upon these results, we inferred that the white sectors in var2 are made by viable cells that have plastids arrested in thylakoid formation. A proposed model to form the variegated sector in var2 is provided...
  14. ncbi [Dynamics in mitochondria and chloroplasts: a current overview]
    Wataru Sakamoto
    Tanpakushitsu Kakusan Koso 50:1861-2. 2005
  15. ncbi A mutation of the CRUMPLED LEAF gene that encodes a protein localized in the outer envelope membrane of plastids affects the pattern of cell division, cell differentiation, and plastid division in Arabidopsis
    Tomoya Asano
    Division of Biological Science, Graduate School of Science, Nagoya University, Furo cho, Chikusa ku, Nagoya 464 8602, Japan
    Plant J 38:448-59. 2004
    ..A possible function of the CRL protein is discussed...
  16. ncbi Influence of chloroplastic photo-oxidative stress on mitochondrial alternative oxidase capacity and respiratory properties: a case study with Arabidopsis yellow variegated 2
    Keisuke Yoshida
    Department of Biological Sciences, Graduate School of Science, Osaka University, 1 1 Machikaneyama cho, Toyonaka, Osaka 560 0043, Japan
    Plant Cell Physiol 49:592-603. 2008
    ..These results indicate that photo-oxidative stress by excess light is involved in the regulation of respiratory gene expression and the modulation of respiratory properties, especially the AOX up-regulation...
  17. ncbi Chemically induced expression of rice OSB2 under the control of the OsPR1.1 promoter confers increased anthocyanin accumulation in transgenic rice
    Hiroyuki Kawahigashi
    National Institute of Agrobiological Sciences NIAS, 2 1 2 Kannondai, Tsukuba, Ibaraki 305 8602, Japan
    J Agric Food Chem 55:1241-7. 2007
    ..This color change system could provide a useful and easy way to produce transgenic plants for monitoring of chemicals in the environment...