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Effect of Dietary Nucleotides on Degree of Fibrosis and Steatosis Induced by Oral Intake of Thioacetamide

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Abstract

The administration of thioacetamide in ratsinduces nodular cirrhosis of the liver, characterized byfibrous septae, parenchymal nodules, proliferation ofthe bile ducts, and excessive deposition of connective tissue elements. Nodular cirrhosis is alsoassociated with changes in lipid metabolism, as shown bythe accumulation of lipid droplets in the hepatocytecytoplasm. Adequate nutritional support during cirrhosis is important to sustain liver function andpromote recovery after the lesions have been induced.Supplementation with nucleotides may increase cellularproliferation and thus optimize hepatic recovery. The aim of this study was to investigate theeffects of dietary nucleotide supplementation on thedegree of fibrosis and steatosis in rats with livercirrhosis induced by four months of oral intake ofthioacetamide. The use of dietary nucleotides afterthioacetamide administration was found to decrease thepercentage area of fibrous septae. In animals with livercirrhosis fed the nucleotidesupplemented diet for two weeks, the total area of fibrosis was reduced.Withdrawal of the hepatotoxic agent led to a decrease inthe degree of steatosis in cirrhotic animals, which wassignificant in rats given the nucleotide-supplemented diet during a two-week recovery period. Inconclusion, dietary nucleotides may be an importantfactor in the histological recovery of damaged liver inexperimental cirrhosis.

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REFERENCES

  1. Burt AD: Liver fibrosis. BMJ 305:537–538, 1992

    Google Scholar 

  2. Clement B, Grimaud J-A, Campion J-P, Deugnier Y, Guillouzo A: Cell types involved in collagen and fibronectin production in normal and fibrotic human liver. Hepatology 6:225–234, 1986

    Google Scholar 

  3. Gascon-Barré M, Huet P-M, Belgiorno J, Plourde V, Coulombe PA: Estimation of collagen content of liver specimens. Variations among animals and among hepatic lobes in cirrhotic rats. Histochem Cytochem 37:377–381, 1989

    Google Scholar 

  4. Löw O: Studies on quantitative morphology. XIV. Morphometry of connective tissue in normal and cirrhotic rat livers: Between accuracy and working expense. Exp Toxicol Pathol 44:138–140, 1992

    Google Scholar 

  5. Schölmerich J: Portal hypertension in chronic liver disease. Hepato-Gastroenterol 38:346–348, 1991

    Google Scholar 

  6. Hiraoka H, Yamashita S, Matsuzawa Y, et al: Decrease of hepatic triglyceride lipasa levels and increase of cholesteryl ester transfer protein levels in patients with primary biliary cirrhosis: Relationship to abnormalities in high-density lipoprotein. Hepatology 18:103–110, 1993

    Google Scholar 

  7. Müller MJ, Rieger A, Willmann O, et al: Metabolic responses to lipid infusions in patients with liver cirrhosis. Clin Nutr 11:193–206, 1992

    Google Scholar 

  8. Carver JD, Walker WA: The role of nucleotides in human nutrition. J Nutr Biochem 6:58–72, 1995

    Google Scholar 

  9. LeLeico NS, Bronstein AD, Baliga BS, Munro HN: De novo purine nucleotide synthesis in the rat small and large intestine: Effect of dietary protein and purines. J Pediatr Gastroenterol Nutr 2:313–319, 1983

    Google Scholar 

  10. Zaharevitz DW, Anderson LW, Malinowski NM, Hyman R, Strong JM, Cysyk RL. Contribution of “de novo” and salvage synthesis to the uracil nucleotide pool in mouse tissues and tumors in vivo. Eur J Biochem 210:293–296, 1992

    Google Scholar 

  11. Carver JD, Novak DA, Benford SA, Barness LA: Dietary nucleotides effect hepatic growth and morphology. Pediatr Res 27:102A, 1990

    Google Scholar 

  12. Uauy R, Quan R, Gil A: Role of nucleotides in intestinal development and repair: Implications for infant nutrition. J Nutr 124:1436S–1441S, 1994

    Google Scholar 

  13. Allan W: Nucleotides and nutrition: role as dietary supplement. J Nutr 124:121S–123S, 1994

    Google Scholar 

  14. Bueno J, Torres MI, Almendros A, et al: Effect of dietary nucleotides on small intestine repair after diarrhoea. Histological and ultrastructural changes. Gut 35:926–933, 1994

    Google Scholar 

  15. Nuñez MC, Ayudarte MV, Morales D, Suárez M, Gil A: Effect of dietary nucleotides on intestinal repair in rats with experimental chronic diarrhoea. JPEN 14:598–604, 1990

    Google Scholar 

  16. Uauy R, Stringel G, Thomas R, Quan R: Effect of dietary nucleosides on growth and maturation of the developing gut in the rat. J Pediatr Gastroenterol Nutr 10:497–503, 1990

    Google Scholar 

  17. Quan R, Gil A, Uauy R: Effect of dietary nucleosides (DN) on intestinal growth and maturation after injury from radiation. Pediatr Res 29:111A, 1991

    Google Scholar 

  18. Boza J, Jiménez J, Faus MJ, Gil A: Influences of postnatal age and dietary nucleotides on plasma fatty acids in the wealing rats. JPEN 16:322–326, 1992

    Google Scholar 

  19. Gil A, Lozano E, DeLuchi C, Maldonado J, Molina JA, Pita ML: Changes in the fatty acid profiles of plasma lipid fractions induced by dietary nucleotides in infants born at term. Eur J Clin Nutr 42:473–481, 1988

    Google Scholar 

  20. Sánchez-Pozo A, Pita ML, Martínez A, Molina JA, Sánchez-Medina F, Gil A: Effect of dietary nucleotides upon lipoprotein pattern of newborn infants. Nutr Res 6:763–771, 1986

    Google Scholar 

  21. Faelli A, Espósito G: Effect of inosine and its metabolites on intestinal iron absorption in the rat. Biochem Pharmacol 19:2551–2554, 1970

    Google Scholar 

  22. Torres MI, Fernández MI, Fontana L, Gil A, Ríos A: Influence of dietary nucleotides on liver structural recovery and hepatocyte binuclearity in cirrhosis induced by thioacetamide. Gut 38:260–264, 1996

    Google Scholar 

  23. ILAR: Control of diets in laboratory animal experimentation. Nutr Abstr Rev: Livestock Feeds Feeding 49:413–419, 1979

    Google Scholar 

  24. Council of Europe: European Convention for the protection of vertebrate animals used for experimental and other scientific purposes. Addendum III. Strasbourg, 1982

  25. Dixon WJ, Brown MB, Engelman L, Jennrich RI: BMDP Statistical Software Manual. Berkeley, University of California Press, 1990

    Google Scholar 

  26. Perez Tamayo R: Is cirrhosis of the liver experimentally produced by CCI4 an adequate model of human cirrhosis? Hepatology 3:112–120, 1983

    Google Scholar 

  27. Popper H: Pathological aspects of cirrhosis. Am J Pathol 87:228–257, 1977

    Google Scholar 

  28. Hori N, Okanoue T, Sawa Y, Mori T, Kashima K: Hemodynamic characterization in experimental liver cirrhosis induced by thioacetamide administration. Dig Dis Sci 38:2195–2202, 1993

    Google Scholar 

  29. Ryoo JW, Buschmann JR: A morphometric analysis of the hypertrophy of experimental liver cirrhosis. Virchows Arch A 400:173–186, 1983

    Google Scholar 

  30. Ogoshi S, Iwasa M, Yonezawa T, Tamiya T: Effect of nucleotide and nucleoside mixture on rats given total parenteral nutrition after 70% hepatectomy. JPEN 9:339–342, 1985

    Google Scholar 

  31. Ogoshi S, Iwasa M, Kitagawa S, et al: Effects of parenteral nutrition with nucleoside and nucleotide mixture on D-galactosamine-induced liver injury in rats. JPEN 12:53–57, 1988

    Google Scholar 

  32. Moreira E, Fontana L, Torres MI, Fernández MI, Ríos A, Sánchez de Medina F, Gil A: Dietary long-chain polyunsaturated fatty acids influence the recovery of thioacetamide-induced liver cirrhosis in rats. JPEN 19:461–469, 1995

    Google Scholar 

  33. Nozu F, Takeyama N, Tanaka T: Changes of hepatic fatty acid metabolism produced by chronic thioacetamide administration in rats. Hepatology 15:1099–1106, 1992

    Google Scholar 

  34. Franke H, Zimmermann T, Dargel R: Qualitative and quantitative changes in hepatic lipoprotein particles following acute injury of the rat liver induced by thioacetamide. Virchows Arch (Cell Pathol) 44:99–113, 1983

    Google Scholar 

  35. García-Molina V, Aguilera JA, Gil A, Sánchez-Pozo A: Plasma lipoproteins in suckling rats: Effect of dietary nucleotides. J Clin Nutr Gastroenterol 6:184–190, 1991

    Google Scholar 

  36. Gil A, Pita M, Martínez A, Molina JA, Sánchez-Medina F: Effect of dietary nucleotides on the plasma fatty acids in at-term neonates. Hum Nutr: Clin Nutr 40c:185–195, 1986

    Google Scholar 

  37. Bucher NLR: Liver regeneration: an overview. J Gastroenterol Hepatol 6:615–624, 1991

    Google Scholar 

  38. Cabré E, Gassull MA: Nutritional aspects of chronic liver diseases. Clin Nutr 12:S52–S63, 1993

    Google Scholar 

  39. Kondrup J, Nielsen K, Hamberg O: Nutritional therapy in patients with liver cirrhosis. Eur J Clin Nutr 46:239–246, 1992

    Google Scholar 

  40. Nompleggi DJ, Bonkovsky HL: Nutritional supplementation in chronic liver diseases: An analytical review. Hepatology 19:518–533, 1994

    Google Scholar 

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Torres, M.I., Fernandez, M.I., Gil, A. et al. Effect of Dietary Nucleotides on Degree of Fibrosis and Steatosis Induced by Oral Intake of Thioacetamide. Dig Dis Sci 42, 1322–1328 (1997). https://doi.org/10.1023/A:1018882913983

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