Evaluation of liver regeneration diet supplemented with omega-3 fatty acids : experimental study in rats

Objective: to evaluate liver regeneration in rats after partial hepatectomy of 60% with and without action diet supplemented with fatty acids through the study of the regenerated liver weight, laboratory parameters of liver function and histological study. Methods: thirty-six Wistar rats, males, adults were used, weighing between 195 and 330 g assigned to control and groups. The supplementation group received the diet by gavage and were killed after 24h, 72h and seven days. Evaluation of regeneration occurred through analysis of weight gain liver, serum aspartate aminotransferase, alanine aminotransferase, gammaglutamyltranspeptidase, and mitosis of the liver stained with H&E. Results: the diet supplemented group showed no statistical difference (p>0.05) on the evolution of weights. Administration of fatty acids post-hepatectomy had significant reduction in gamma glutamyltransferase levels and may reflect liver regeneration. Referring to mitotic index, it did not differ between period of times among the groups. Conclusion: supplementation with fatty acids in rats undergoing 60% hepatic resection showed no significant interference related to liver regeneration.

[1]  Y. Qiu,et al.  Omega-3 polyunsaturated fatty acids promote liver regeneration after 90% hepatectomy in rats. , 2012, World journal of gastroenterology.

[2]  Nicolau Gregori Czeczko,et al.  Regeneração do fígado após hepatectomia parcial em ratos submetidos à hipertensão portal pós-hepática , 2011 .

[3]  G. Marchesini,et al.  Nutritional treatment of chronic liver failure , 2008, Hepatology research : the official journal of the Japan Society of Hepatology.

[4]  T. Hwang,et al.  Postsurgical Infections are Reduced with Specialized Nutrition Support , 2006, World Journal of Surgery.

[5]  T. Machuca,et al.  Liver resection: 10-year experience from a single institution. , 2004, Arquivos de gastroenterologia.

[6]  A. Zimmermann Regulation of liver regeneration. , 2004, Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association.

[7]  M. Merli,et al.  Malnutrition is a risk factor in cirrhotic patients undergoing surgery. , 2002, Nutrition.

[8]  M. Braga,et al.  A randomized controlled trial of preoperative oral supplementation with a specialized diet in patients with gastrointestinal cancer. , 2002, Gastroenterology.

[9]  J. Diaz Should Immunonutrition Become Routine in Critically Ill Patients? A Systematic Review of the Evidence , 2002 .

[10]  M. Braga,et al.  Nutritional approach in malnourished surgical patients: a prospective randomized study. , 2002, Archives of surgery.

[11]  S. Heisterkamp,et al.  Effect of preoperative oral immune-enhancing nutritional supplement on patients at high risk of infection after cardiac surgery: a randomised placebo-controlled trial , 2001, The Lancet.

[12]  G. Michalopoulos,et al.  Liver Regeneration , 1997, Journal of cellular physiology.

[13]  G. Minuk,et al.  Liver regeneration: methods for monitoring and their applications. , 1997, Journal of hepatology.

[14]  A. Kwon,et al.  Effect of administration of fibronectin or aprotinin on liver regeneration after experimental hepatectomy. , 1990, Annals of surgery.

[15]  F. Ramalho,et al.  Cellular aspects of liver regeneration. , 2006, Acta cirurgica brasileira.