• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Nutritional Therapy of HCV-infected patients using vitamin E and C and eicosapentaenoic acid.

Research Project

Project/Area Number 16500516
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Eating habits, studies on eating habits
Research InstitutionOkayama Prefectural University

Principal Investigator

OKITA Misako  Okayama Prefectural University, Faculty of Health and Welfare Science, Professor, 保健福祉学部, 教授 (70079242)

Co-Investigator(Kenkyū-buntansha) KAWAKAMI Takayo  Okayama Prefectural University, Faculty of Health and Welfare Science, Assistant Professor, 保健福祉学部, 講師 (10254567)
MURAKAMI Yasuko  Okayama Prefectural University, Faculty of Health and Welfare Science, Assistant, 保健福祉学部, 助手 (90326413)
TOMIOKA Kayoko  Kurashiki Sakuyo University, Faculty of Food Culture, Associate Professor, 食文化学部, 助教授 (90368671)
KAKIBUCHI Naoko  Setouchi Junior College, Department of Food and Nutrition, Assistant Professor, 食物栄養学科, 講師 (70310886)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2005: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2004: ¥3,300,000 (Direct Cost: ¥3,300,000)
Keywordseicosapentaenoic acid / vitamin E / lymphocyte / fatty acid composition of RBC / arachidonic acid / interferon / ribavirin / hepatitis C patients / リンパ球数 / 8-OHdG / インターフェロンα-2b
Research Abstract

Antiviral therapy using interferon (IFN) α-2b and ribavirin is an important component in the treatment of hepatitis C virus infected patients. However, hemolytic anemia and cytopenia are well known side effects of IFN α-2b and ribavirin therapy. We, therefore, examined the effects of anti-oxidative vitamin and EPA supplementation on the prevention of side effects in the patients treated with IFN α-2b and ribavirin.
1. Vitamin E and C supplementation in the treatment of chronic hepatitis C patients
Patients were randomly allocated to receive daily 500mg of vitamin E and 750mg of vitamin C (vitamin group, n=14) or no supplement (non-vitamin group, n=16) in addition to IFN α-2b and ribavirin therapy. The fatty acid composition of mononuclear cell phospholipids was analyzed before and at 2, 4 and 8 weeks after treatment.
After vitamin supplementation, plasma and RBC α-tocopherol and plasma ascorbic acid levels increased in the vitamin group. Serum ALT levels decreased significantly after 2 we … More eks of treatment in both groups. At the start of treatment, a lower level of EPA and a higher level of the molar ratio of arachidonic acid to EPA in mononuclear cells were observed in the patients compared with healthy volunteers, and a significant correlation between the molar ratio and serum ALT level was found. The EPA level of mononuclear cells was maintained in the vitamin group during treatment, whereas a significant decrease was observed in the non-vitamin group at 4 and 8 weeks after treatment. From these results, usefulness of vitamin E, C and EPA supplementation was expected in the treatment of chronic hepatitis C.
2. EPA supplementation in the treatment of chronic hepatitis C patients
EPA ethyl ester capsules were administered to patients receiving the combination therapy of IFN α-2b and ribavirin. EPA (1,800mg/day) was supplemented in combination with vitamin E (300mg/day) and C (600mg/day) to 5 chronic hepatitis C patients (EPA group). Five patients were administered vitamin E and C but not EPA (control group).
EPA in erythrocyte membrane rose to 3 fold the basal level in the EPA group, while it decreased significantly in the control group after 24 weeks of therapy. Lymphocyte counts in the EPA group increased after 4 weeks of therapy and maintained the basal level throughout therapy, whereas the counts decreased significantly in controls. The serum ALT was improved significantly in the EPA group. Changes in lymphocyte counts following 24 weeks of therapy correlated with the EPA level in erythrocyte. These results may suggest the beneficial effect of EPA in the treatment of chronic hepatitis C patients. Less

Report

(3 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • Research Products

    (13 results)

All 2006 2005 2004

All Journal Article (13 results)

  • [Journal Article] Vitamin E and C supplementation prevents decrease of eicosapentaenoic acid in mononuclear cells in chronic hepatitis C patients during combination therapy of interferon α-2b and ribavirin.2006

    • Author(s)
      Yasuko Murakami
    • Journal Title

      Nutrition 22・2

      Pages: 114-122

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] C型慢性肝炎のPEG-IFNα-2b/ribavirin併用療法における亜鉛投与のALT値改善効果(投与8週目までの検討)2006

    • Author(s)
      村上 泰子
    • Journal Title

      肝臓 47・3

      Pages: 165-165

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Zinc supplementation improves ALT level in chronic hepatitis C patients during combination therapy of PEG-interferon α-2b and ribavirin.2006

    • Author(s)
      Yasuko Murakami, Tomoko Koyabu, Aiko Kawashima, Naoko Kakibuchi, Takayo Kawakami, Koichi Takaguchi, Keiji Kita, Misako Okita
    • Journal Title

      Kanzo 47-3

      Pages: 165-165

    • NAID

      10017560591

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Vitamin E and C supplementation prevents decrease of eicosapentaenoic acid in mononuclear cells in chronic hepatitis C patients during combination therapy of interferon α-2b and ribavirin.2006

    • Author(s)
      Yasuko Murakami, Ayako Nagai, Takayo Kawakami, Keisuke Hino, Akira Kitase, Yuh-ichi Hara, Michiari Okuda, Kiwamu Okita, Misako Okita
    • Journal Title

      Nutriotn 22-2

      Pages: 114-122

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] C型慢性肝炎のPEG-IFNα-2b/ribavirin併用療法における亜鉛投与のALT値改善効果(投与開始8週目までの検討)2006

    • Author(s)
      村上 泰子
    • Journal Title

      肝臓 (印刷中)

    • NAID

      10017560591

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Effects of eicosapentaenoic acid supplementation in the treatment of chronic hepatitis C patients.2005

    • Author(s)
      Kayoko Tomioka
    • Journal Title

      Journal of Nutritional Science and Vitaminology 51・6

      Pages: 419-425

    • NAID

      110002978354

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Effects of eicosapentaenoic acid supplementation in the treatment of chronic hepatitis C patients.2005

    • Author(s)
      Kayoko Tomioka, Naoko Kakibuchi, Yasuko Murakami, Takayo Kawakami, Kouichi Takaguchi, Keiji Kita, Misako Okita
    • Journal Title

      Journal of Nutritional Science and Vitaminology 51-6

      Pages: 419-425

    • NAID

      110002978354

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Vitamin E supplementation increases polyunsaturated fatty acid of RBC membrane in HCV-infected patients.2004

    • Author(s)
      Yasuko Ota
    • Journal Title

      Nutrition 20・4

      Pages: 358-363

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Chronic hepatic disease and dietary instruction.2004

    • Author(s)
      Misako Okita
    • Journal Title

      Hepatology Research 30S

    • NAID

      10015455780

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] C型慢性肝疾患患者の栄養療法2004

    • Author(s)
      垣渕 直子
    • Journal Title

      Digestion and Absorption 27・1

    • NAID

      10014495986

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Dietary instruction for patients with HCV infected chronic liver disease.2004

    • Author(s)
      Naoko Kakibuchi, Keiji Kita, Misako Okita
    • Journal Title

      Digestion and Absorption 27-1

      Pages: 85-88

    • NAID

      10014495986

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Vitamin E supplementation increases polyunsaturated fatty acids of RBC membrane in HCV infected patients.2004

    • Author(s)
      Yasuko Ota, Takayo Sasagawa, Kazuhiko Suzuki, Kayoko Tomioka, Ayako Nagai, Gohichi Niiyama, Miwa Kawanaka, Gotaro Yamada, Misako Okita
    • Journal Title

      Nutrition 20-4

      Pages: 358-363

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Vitamin E supplementation increases polyunsaturated fatty acids of RBC membrane in HCV-infected patients.2004

    • Author(s)
      Yasuko Ota
    • Journal Title

      Nutrition 20・4

      Pages: 358-363

    • Related Report
      2004 Annual Research Report

URL: 

Published: 2004-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi