PATHOPHYSIOLOGICAL CHANGES IN LIVER TISSUES OF HYPERCALORIE DIET-INDUCED OBESE RATS
DOI:
https://doi.org/10.22159/ajpcr.2017.v10i1.15422Abstract
Objectives: Hypercalorie diet intake has been associated with many long-term complications including metabolic syndrome, cardiovascular diseases, and nonalcoholic fatty liver disease.
Methods: A total of 12 Wistar rats either sex were used in this study. These animals were randomly divided into two groups as control and obese rats. Group 1 consists of six rats weighing 150-200 g and fed with normal pellet chow. Another six rats were fed hypercalorie/cafeteria diet to induce obesity and included in the study after 19 weeks of age. All animals were sacrificed; liver tissues were collected, weighed and sent for the histopathological examination.
Results: Weight of liver tissues of was significantly more in obese rats than the control rats. Histopathological examination shows an excessive fat deposition and sinusoidal congestion in the liver tissues of obese rats.
Conclusion: Increase in body weight is associated with the increase in fat deposition in the liver tissues which further develops into inflammation and necrosis of liver cells.
Keywords: Wistar rats, Hypercalorie/cafeteria diet, Obese rats, Histopathological examination.
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Hirsch J, Batchelor B. Adipose tissue cellularity in human obesity. Clin Endocrinol Metab 1976;5(2):299-311.
Massiera F, Barbry P, Guesnet P, Joly A, Luquet S, Moreilhon-Brest C, et al. A Western-like fat diet is sufficient to induce a gradual enhancement in fat mass over generations. J Lipid Res 2010;51(8):2352-61.
Panchal SK, Brown L. Rodent models for metabolic syndrome research. J Biomed Biotechnol 2011;2011:351982.
Festi D, Colecchia A, Sacco T, Bondi M, Roda E, Marchesini G. Hepatic steatosis in obese patients: Clinical aspects and prognostic significance. Obes Rev 2004;5(1):27-42.
Kamalakkannan S, Rajendran R, Venkatesh RV, Clayton P, Akbarsha MA. Antiobesogenic and antiatherosclerotic properties of Caralluma fimbriata extract. J Nutr Metab 2010;2010:285301.
Harris RB. The impact of high - or low-fat cafeteria foods on nutrient intake and growth of rats consuming a diet containing 30% energy as fat. Int J Obes Relat Metab Disord 1993;17(6):307-15.
Bratthauer GL. Avidinbiotin labeling of cellular antigens in cryostat- sectioned tissue. In: Javois LC, editor. Methods in Molecular Biology. Vol. 4. Clifton JC: Humana Press; 1994. p. 175-84.
Harishankar N, Kumar PU, Sesikeran B, Giridharan N. Obesity associated pathophysiological & histological changes in WNIN obese mutant rats. Indian J Med Res 2011;134:330-40.
Bray GA, York DA. Genetically transmitted obesity in rodents. Physiol Rev 1971;51(3):598-646.
Bray GA. The Zucker-fatty rat: A review. Fed Proc 1977;36(2):148-53.
Smith BW, Adams LA. Nonalcoholic fatty liver disease and diabetes mellitus: Pathogenesis and treatment. Nat Rev Endocrinol 2011;7(8):456-65.
Johnson AM, Olefsky JM. The origins and drivers of insulin resistance. Cell 2013;152(4):673-84.
Chun MR, Lee YJ, Kim KH, Kim YW, Park SY, Lee KM, et al. Differential effects of high-carbohydrate and high-fat diet composition on muscle insulin resistance in rats. J Korean Med Sci
;25(7):1053-9.
Kohli R, Kirby M, Xanthakos SA, Softic S, Feldstein AE, Saxena V, et al. High-fructose, medium chain trans fat diet induces liver fibrosis and elevates plasma coenzyme Q9 in a novel murine model of obesity and nonalcoholic steatohepatitis. Hepatology 2010;52(3):934-44.
Murase T, Mizuno T, Omachi T, Onizawa K, Komine Y, Kondo H, et al. Dietary diacylglycerol suppresses high fat and high sucrose diet-induced body fat accumulation in C57BL/6J mice. J Lipid Res 2001;42(3):372-8.
Sato A, Kawano H, Notsu T, Ohta M, Nakakuki M, Mizuguchi K, et al. Antiobesity effect of eicosapentaenoic acid in high-fat/high-sucrose diet-induced obesity: Importance of hepatic lipogenesis. Diabetes 2010;59(10):2495-504.
Clarke SD. Polyunsaturated fatty acid regulation of gene transcription: A molecular mechanism to improve the metabolic syndrome. J Nutr 2001;131(4):1129-32.
Gavrilova O, Haluzik M, Matsusue K, Cutson JJ, Johnson L, Dietz KR, et al. Liver peroxisome proliferator-activated receptor gamma contributes to hepatic steatosis, triglyceride clearance, and regulation of body fat mass. J Biol Chem 2003;278(36):34268-76.
Vidal-Puig A, Jimenez-Liñan M, Lowell BB, Hamann A, Hu E, Spiegelman B, et al. Regulation of PPAR gamma gene expression by nutrition and obesity in rodents. J Clin Invest 1996;97(11):2553-61.
Morán-Salvador E, López-Parra M, GarcÃa-Alonso V, Titos E, MartÃnez-Clemente M, González-Périz A, et al. Role for PPAR? In obesity-induced hepatic steatosis as determined by hepatocyte - And macrophage-specific conditional knockouts. FASEB J 2011;25(8):2538-50.
Yamauchi T, Kamon J, Waki H, Murakami K, Motojima K, Komeda K, et al. The mechanisms by which both heterozygous peroxisome proliferator-activated receptor gamma (PPARgamma) deficiency and PPARgamma agonist improve insulin resistance. J Biol Chem
;276(44):41245-54.
Ambadasu B, Dange SV, Wali RS. Effect of caralluma fimbriata extract on appetite, body weight & lipid profile in cafeteria diet-induced obesity in rats. Int J Pharm Pharm Sci 2013;5(4):536-9.
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