Effect of obesity and metabolic complications on molecular characteristics of bone marrow skeletal stem cells in relation to bone and adipose tissue metabolism

Le résumé fourni par la source

Obesity and diabetes are metabolic complications associated with higher accumulation of fat in periphery and bones leading to higher fracture risk. Several approaches have been introduced in the treatment of obesity and diabetes - non-pharmacological (e.g. dietary intervention or physical activity) and pharmacological (e.g. metformin, thiazolidinediones (TZDs)) to improve metabolic complications. Dietary intervention including omega-3 polyunsaturated fatty acid (PUFA) supplementation showed multiple beneficial effects on bone parameters and bone marrow skeletal stem cells (BMSC) properties in animal and clinical studies. However, this was not well studied in obesogenic conditions. Further, TZDs (e.g. pioglitazone, rosiglitazone) are very effective insulin sensitizers but with several side effects (increased bone marrow adiposity (BMA) with higher fracture risk) due to their mechanism of action. MSDC-0602K, a novel TZD analog, has been developed to minimize side effects on fat metabolism. However, its impact on bone phenotype and bone marrow skeletal stem cells BMSCs in relation to obesity has not been intensively studied. Thus, in my PhD thesis I investigated both approaches using high-fat diet (HFD)-induced obesity mouse model. 8 weeks old male mice were fed with HFD or HFD supplemented with...

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