Effects of pravastatin on obesity, diabetes, and adiponectin in diet-induced obese mice. 2008

Kana Araki, and Takayuki Masaki, and Isao Katsuragi, and Tetsuya Kakuma, and Hironobu Yoshimatsu
Department of Internal Medicine 1, Faculty of Medicine, Oita University, Oita, Japan. ka_na.a@med.oita-u.ac.jp

OBJECTIVE The aim of this study was to investigate the in vivo effects of pravastatin on the development of obesity and diabetes in diet-induced obese (DIO) mice. METHODS We examined food intake, body-weight changes, visceral white adipose tissue (WAT) adiponectin and resistin levels, and energy metabolism. RESULTS Treatment with 100 mg/kg/day pravastatin for 28 days decreased diet-induced weight gain and visceral adiposity. In addition, the weight of the WAT, the triglyceride (TG) contents of the liver and muscles, and the levels of serum insulin improved in the pravastatin-treated DIO mice. Furthermore, pravastatin treatment changed the WAT adiponectin and resistin mRNA expression and serum levels compared with the controls. Finally, pravastatin treatment increased oxygen consumption and decreased the respiratory quotient (RQ). CONCLUSIONS Pravastatin treatment prevents the development of obesity and diabetes in DIO mice. The prevention of obesity may be mediated by increased oxygen consumption and a decrease in the RQ. These results provide novel insights into the use of pravastatin as a therapeutic tool for metabolic syndromes.

UI MeSH Term Description Entries
D007328 Insulin A 51-amino acid pancreatic hormone that plays a major role in the regulation of glucose metabolism, directly by suppressing endogenous glucose production (GLYCOGENOLYSIS; GLUCONEOGENESIS) and indirectly by suppressing GLUCAGON secretion and LIPOLYSIS. Native insulin is a globular protein comprised of a zinc-coordinated hexamer. Each insulin monomer containing two chains, A (21 residues) and B (30 residues), linked by two disulfide bonds. Insulin is used as a drug to control insulin-dependent diabetes mellitus (DIABETES MELLITUS, TYPE 1). Iletin,Insulin A Chain,Insulin B Chain,Insulin, Regular,Novolin,Sodium Insulin,Soluble Insulin,Chain, Insulin B,Insulin, Sodium,Insulin, Soluble,Regular Insulin
D008297 Male Males
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D009765 Obesity A status with BODY WEIGHT that is grossly above the recommended standards, usually due to accumulation of excess FATS in the body. The standards may vary with age, sex, genetic or cultural background. In the BODY MASS INDEX, a BMI greater than 30.0 kg/m2 is considered obese, and a BMI greater than 40.0 kg/m2 is considered morbidly obese (MORBID OBESITY).
D010101 Oxygen Consumption The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346) Consumption, Oxygen,Consumptions, Oxygen,Oxygen Consumptions
D011897 Random Allocation A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects. Randomization,Allocation, Random
D001786 Blood Glucose Glucose in blood. Blood Sugar,Glucose, Blood,Sugar, Blood
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D002001 Adipose Tissue, Brown A thermogenic form of adipose tissue composed of BROWN ADIPOCYTES. It is found in newborns of many species including humans, and in hibernating mammals. Brown fat is richly vascularized, innervated, and densely packed with MITOCHONDRIA which can generate heat directly from the stored lipids. Brown Fat,Hibernating Gland,Brown Adipose Tissue,Fat, Brown,Tissue, Brown Adipose
D003920 Diabetes Mellitus A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE.

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