Cinnamon (Cinnamomum zeylanicum) Aqueous Extract Regulates the Parameters of Metabolic Syndrome in a Model of Wistar Rats with a Diet High in Fat and Fructose

To identify the effect of Cinnamomum zeylanicum (CZ) aqueous extract on glucose, triglycerides, high-density lipoprotein (HDL) cholesterol, and blood pressure in male Wistar rats, fed with a high-fat and high-fructose diet (HFFD). Twenty-four male Wistar rats were randomized into four groups: Healthy (fed with standard diet), Healthy + CZ (fed with standard diet + CZ extract), HFFD (fed with HFFD), HFFD+CZ, (fed with HFFD + CZ extract). The CZ aqueous extract was administered 100 mg/kg/day by oral gavage to each rat for 8 weeks. Blood samples, blood pressure, and weight were taken at the beginning and end of the experiment. The rats were euthanized after the experiment, according to the Mexican Official Standard NOM-062-ZOOO-1999. The administration of CZ aqueous extract significantly decreased glucose levels (F[1,18]=46.458, P < .001). The interaction between the type of diet and the extract had an effect on triglycerides (F[1,18]=14.93, P = .001), and systolic (F[1,18]=127, P < .001) and diastolic blood pressure levels (F[1,18]=146.13, P < .001) in male Wistar rats. HFFD, plus the administration of CZ aqueous extract over 8 weeks, significantly improved glucose, triglyceride, and systolic and diastolic blood pressure levels, regulating metabolic parameters in male Wistar rats.