Project description:The aim of this study was to characterize the obesity-related gene expression profiles between bone marrow adipocytes and peripheral white adipocytes from obese mice fed with high fat diet and leptin deficient mice Alterations of gene expression with high fat diet and in mice lacking leptin were analyzed in bone marrow and peripheral white adipocytes isolated from C57BL/6J male mice using Affymetrix Mouse Gene 1.0 ST arrays. Bone marrow adipocytes and peripheral white adipocytes (n=6-10 animals per group) were isolated from male C57BL/6J mice (6-months, 14-months ) fed with either standard chow or a high fat diet containg 60% calories from fat. Samples were grouped into diet (standard chow vs. high fat diet) and age (6-month (6M), 14-month (14M) and 18-month (18M)).
Project description:Cardiovascular (CV) disease is a leading cause of morbidity and mortality in Western societies. Even after accounting for traditional CV risk factors (e.g. obesity, smoking and hypertension), the inflammation-driven thickening and stiffening of central arteries is a strong predictor of adverse outcomes. Arterial wall changes are universally associated with advancing age and show unparalleled worsening in metabolic syndrome. In mice, resveratrol ameliorates a high-fat diet induced arterial wall inflammation and slows age-associated physiologic deteriorations within the arterial wall. Here we tested resveratrol in adult male rhesus monkeys, an experimental model relevant to humans. A diet rich in fat and sucrose (HFS) led to an increase in body weight as well as thickening and stiffening of the aortic wall, marked by diffuse inflammation, fibrosis and fat infiltration. Dietary resveratrol supplementation prevented diet-induced structural and functional alterations within the aortic wall, and abrogated the deleterious vascular endothelial and smooth muscle responses. Integrative genomic and proteomic analyses of aortic tissues revealed molecular signatures consistent with improved vascular functions. Thus, resveratrol conferred protection against the initiation of diet-induced inflammatory events that progress to pathological thickening and stiffening of large arteries. Dietary resveratrol may therefore hold promise as a novel therapy to ameliorate metabolic stress-induced CV disease. After baseline assessment, four male rhesus monkeys remained on the healthy standard diet (SD), 10 male rhesus monkeys were begun on a high fat/high sucrose (HFS) diet and 10 male rhesus monkeys were begun on a high fat/high sucrose (HFS) diet plus Resveratrol, 80mg/day. After one year of dietary intervention, the amount of resveratrol was increased to 240mg/day for one additional year. Tissues were then harvested for the array experiments.
Project description:Two-month-old C57BL/6J male mice were placed on either chow diet or a diet enriched in high fat, cholesterol, and fructose (Research diet D09100301: 40 kcal% fat, 2% cholesterol, 20 kcal% fructose, HFCF diet) for 1 or 3 months. RNA-seq was used to analyze hepatic gene expression from mice on 1-month chow diet, 1-month HFCF diet, 3-month chow diet, and 3-month HFCF.
Project description:Rapid growth in infancy considerably increases the risk of obesity and metabolic disorders in adulthood especially among neonates born small. To investigate the molecular mechanism of rapid infantile growth (RG) following undernourishment in utero (UN) in the deterioration of the adult fat deposit, we developed a mouse animal UN model by maternal energy restriction, followed by RG by adjustment of 4 pups per litter soon after birth. High fat diet (FHD) was supplied to the weaned pups, with or without the treatment of tauroursodeoxycholic acid (TUDCA; TU). UN-RG pups showed deterioration of diet-induced obesity and fat deposit, which was ameliorated by TU. We carried out microarray analysis of epidydimal adipose tissue.
Project description:To determine effects of hyperglycemia and insulin resistance on arterial wall biology, gene expression profiles were generated using aortas from mice on high fat (35% fat) diet and their respective non diabetic regular chow fed controls. Keywords: Chip Experiment was done in triplicate with three independent pools from test mice on high fat diet and control mice on regular chow diet. For RNA isolation aortas were striped of adventitia and periaortic fat. RNA from three aortas was pooled for the synthesis of probe for affymetrix array analysis.
Project description:Gene expression for genes differentially expressed between early vs. late tumor onset and high fat diet (HFD) vs. low fat diet (LFD) in mice.
Project description:Gene expression for genes differentially expressed between early vs. late tumor onset and high fat diet (HFD) vs. low fat diet (LFD) in P53 -/- mice.
Project description:To determine effects of hyperglycemia and insulin resistance on arterial wall biology, gene expression profiles were generated using aortas from mice on high fat (35% fat) diet and their respective non diabetic regular chow fed controls. Keywords: Chip
