Search results for " High fat diet"
showing 4 items of 4 documents
Genetic ablation of macrohistone H2A1 leads to increased leanness, glucose tolerance and energy expenditure in mice fed a high-fat diet.
2015
Contains fulltext : 155347.pdf (Publisher’s version ) (Closed access) BACKGROUND/OBJECTIVES: In the context of obesity, epigenetic mechanisms regulate cell-specific chromatin plasticity, perpetuating gene expression responses to nutrient excess. MacroH2A1, a variant of histone H2A, emerged as a key chromatin regulator sensing small nutrients during cell proliferation and differentiation. Mice genetically ablated for macroH2A1 (knockout (KO)) do not show overt phenotypes under a standard diet. Our objective was to analyse the in vivo role of macroH2A1 in response to nutritional excess. METHODS: Twelve-week-old whole-body macroH2A1 KO male mice were given a high-fat diet (60% energy from lard…
The regulation of efferocytosis signaling pathways and adipose tissue homeostasis in physiological conditions and obesity: Current understanding and …
2022
Obesity is associated with changes in the resolution of acute inflammation that contribute to the clinical complications. The exact mechanisms underlying unresolved inflammation in obesity are not fully understood. Adipocyte death leads to pro-inflammatory adipose tissue macrophages, stimulating additional adipocyte apoptosis. Thus, a complex and tightly regulated process to inhibit inflammation and maintain homeostasis after adipocyte apoptosis is needed to maintain health. In normal condition, a specialized phagocytic process (efferocytosis) performs this function, clearing necrotic and apoptotic cells (ACs) and controlling inflammation. For efficient and continued efferocytosis, phagocyt…
MATERNAL HIGH FAT DIET CONSUMPTION DURING PREGNANCY AND LACTATION: IMPACT ON INTESTINAL MORPHOLOGY AND FUNCTION IN PREWEANING OFFSPRING
2015
Different evidence supports an important role for maternal obesity in the development of childhood obesity and subsequent adult disease. This study is addressed to investigate if and to which extend maternal high fat feeding would induce compensatory and adaptative responses in gut predisposing to the eventual development of paediatric obesity. Adult female mice were divided into two groups fed with i) high fat (HF) diet and ii) standard chow (SC)diet, during pregnancy and lactation. HF mothers showed a significant weight gain, higher levels of blood glucose and an abnormal glucose tolerance compared to SC mother, indicating the establishment of metabolic syndrome. Then, offspring subdivide…
Glucagon-like peptide-2 analog and inflammatory state in obese mice
2020
Obesity is characterized by chronic low grade of systemic inflammation that develops in response to nutrient excess and plays a key role in the pathogenesis of insulin resistance. It is characterized by macrophage infiltration into adipose tissue (AT) and abnormal cytokine production. These factors damage the metabolic homeostasis leading to alteration in the insulin signaling in specific tissues and organs such as AT and liver. Thus, obese subjects develop over the time resistance to the cellular actions of insulin. Glucagon like peptide-2 (GLP-2) is an intestinal proglucagon-derived hormone released together with GLP1, in response to the passage of food by the distal small intestine. Once…