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Sex Difference in the Liver Regeneration in Alcohol-Fed Rats.

Research Project

Project/Area Number 01570412
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Gastroenterology
Research InstitutionThe Jikei University School of Medicine.

Principal Investigator

YAMAUCHI Masayoshi  Jikei Univ. Sch. of Med. 1st Dept. of Int. Med. : Assistant., 医学部・第1内科, 助手 (20138811)

Co-Investigator(Kenkyū-buntansha) NAKAJIMA Hisato  the same as above : Assistant., 第1内科, 助手 (90207788)
NAKAHARA Masao  the same as above : Assistant., 第1内科, 助手 (30201669)
KITAHARA Toshihisa  the same as above : Lecturer., 第1内科, 講師 (00119786)
FUJISAWA Kiyoshi  the same as above : Professor., 第1内科, 教授 (80056473)
KAMEDA Haruo  Jikei Univ. Sch. ofMed. 1st Dept. of Int. Med. : Professor., 第1内科, 教授 (00056467)
Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1990: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1989: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsHepatic regeneration / Alcohol / Sexual hormone / Ornithine decarboxylase / Ornithise decarboxylase
Research Abstract

Several clinical studies have indicated that female alcoholics may be more susceptible to the development of alcoholic liver cirrhosis than their male counterparts. We studied the effect of acute and chronic ethanol administration on the liver regeneration and ornithine decarboxylase (ODC) in male and female rat livers.
1. Male and female Sprague-Dawley rats had a 68% hepatectomy accompanied by oral administration of 5 g/kg of 20% ethanol as ethanol group. Control groups were given same calories of glucose solution. Serially at 0, 4, 8, 12, 24 hours after hepatectomy, ODC activity, immunoreactive ODC (IR-ODC) protein, DNA synthesis, liver remnant weight and total protein contents of liver were analyzed. Liver weight, total protein contents and DNA synthesis were more significantly decreased in the female ethanol group than in the male ethanol group. ODC activity and IR-ODC protein were also more significantly decreased in the female ethanol group at 4 hours after hepatectomy than in the male ethanol group. These data suggest that the acute ethanol administration suppress the liver regeneration more prominently in the female rat than in the male.
2. Sprague-Dawley male female rats were pair-fed with a high-fat, low protein diet plus ethanol or isocaloric sucrose for 6 weeks. IR-ODC protein and alcohol dehydrogenase (ADH) activity were higher in the female control than in the male control. IR-ODC protein and ADH activity decreased in the female ethanol group compared to the female control, while these enzymes increased in the male ethanol compared to male control. The highest accumulation of hepatic collagen-bound hydroxyproline was found in the female ethanol group.
In conclusion, a marked decrease in the liver regeneration in the female rats may be related to the clinico-epidemiological reports that female alcoholics are more likely to develop alcoholic liver cirrhosis.

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] 山内 眞義: "アルコ-ル性肝障害に及ぼす性差の影響" 肝臓. 30. 643-648 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 大畑 充: "エタノ-ルのfirstーpass metabolismとしての胃粘膜アルコ-ル脱水素酵素(ADH)ー性差と種差について" アルコ-ル代謝と肝. 9. 18-20 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 中島 尚登: "アルコ-ル肝の肝再生のおけるImmunoreactive Ornithine Decarboxylaseの変動について" アルコ-ル代謝と肝. 9. 96-100 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 中島 尚登: "急性アルコ-ル投与ラットの肝再生におけるImmunoreactive Ornithine Decarboxylaseの変動と性差について" 肝臓. 31. 610-616 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Mitsuru Ohata: "Sex difference in liver regeneration after acute ethanol administration to hepatectomized rats." Hepatology. 12. 430- (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yamauchi Masayoshi: "Sex difference in the development of alcoholic liver disease in the liver." Acta Hepatologica Japonica. 30. 634-648 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ohata Mituru: "Gastric alcohol dehydrogenase as a first-pass metabolism of ethanol -sex and species difference." Alcohol Metabolism and the liver. 9. 18-22 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Nakajima Hisato: "The effect of acute ethanol administration on immunoreactive ornithine decarboxylase protein contents and liver regeneration." Alcohol Metabolism and the liver. 9. 96-100 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Nakajima Hisato: "Sex difference in liver regeneration and ornithine decarboxylase protein after acute ethanol administration to hepatectomized rats." Acta Hepatologica Japonica. 31. 610-616 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ohata Mituru: "Sex difference in liver regeneration after acute ethanol administration to hepatectomized rats." Hepatology. 12. 430 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 山内 眞義: "アルコ-ル性肝障害に及ぼす性差の影響" 肝臓. 30. 643-648 (1989)

    • Related Report
      1990 Annual Research Report
  • [Publications] 大畑 充: "エタノ-ルのfirstーpass metabolismとしての胃粘膜アルコ-ル脱水素酵素(ADH)ー性差と種差について" アルコ-ル代謝と肝. 9. 18-22 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 中島 尚登: "アルコ-ル肝の肝再生におけるImmunoreactive Ornithine Decarboxylaseの変動について" アルコ-ル代謝と肝. 9. 96-100 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 中島 尚登: "急性アルコ-ル投与ラットの肝再生におけるImmunoreactive Ornithine Oecarboxylaseの変動と性差について" 肝臓. 31. 610-616 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] M. Ohata: "Sex difference in liver regeneration after acute ethanol administration to hepatectomized rats." Hepatology. 12. 430 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 中島尚登他: "アルコ-ル肝の肝再生におけるimmunoreactive Ornithine Decarboxylaseの変動について" アルコ-ル代謝と肝. 8. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 山内眞義他: "アルコ-ル性肝障害に及ぼす性差の影響" 肝臓. 30(6). 643-648 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 中島尚登他: "急性アルコ-ル投与ラットの肝再生におけるimmunoreactive Ornithine Decarboxylaseの変動と性差について" 肝臓. (1990)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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