A Mouse Model of Diet-Induced Obesity Resembling Most Features of Human Metabolic Syndrome

MUÑOZ MD,; MARIA J. GERMANÓ; NIDIA N. GOMEZ; RAMIREZ D.C,; DELLA VEDOVA MC; MARIA G. PLATEO-PIGNATARI; SILVINA GARCIA; GOMEZ-MEJIBA S.E; SANTILLAN, LUCAS; MARTÍN E. RINALDI TOSI; MIGUEL W. FORNES

Nutrition and Metabolic Insights

Libertas Academica

Lugar: Madison, Wisconsin; Año: 2016 vol. 9 p. 93 - 102

1178-6388

Increased chicken-derived fat and fructose consumption in the human diet is paralleled by an increasing prevalence of obesity and metabolic syndrome (MS). Herein, we aimed at developing and characterizing a mouse model of diet-induced obesity (DIO) resembling most of the key features of the human MS. To accomplish this, we fed male C57BL/6J mice for 4, 8, 12, and 16 weeks with either a low-fat diet (LFD) or a high-chicken-fat diet (HFD) and tap water with or without 10% fructose (F). This experimental design resulted in the following four experimental groups: LFD, LFD + F, HFD, and HFD + F. Over the feeding period, and on a weekly basis, the HFD + F group had more caloric intake and gained more weight than the other experimental groups. Compared to the other groups, and at the end of the feeding period, the HFD + F group had a higher adipogenic index, total cholesterol, low-density lipoprotein cholesterol, fasting basal glycemia, insulin resistance, hypertension, and atherogenic index and showed steatohepatitis and systemic oxidative stress/inflammation. A mouse model of DIO that will allow us to study the effect of MS in different organs and systems has been developed and characterized.