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Obesity is a global epidemic and an urgent health crisis impacting human health and health services, with the economic consequences of loss of human capital. It is a crisis for health professionals, health economists and government officials managing finite resources and the economy with premature loss of life and economic productivity. In this Frontiers Research Topic, researchers from a breadth of disciplines internationally contributed reviews, meta-analyses and novel data on the challenges obesity presents in attempts to stimulate debate on strategies and solutions for this crisis.
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It is long known that many cells can shed extracellular vesicles, small membrane-enclosed cell fragments. Although the existence of extracellular vesicles has been recognized for many years, researchers are only beginning to understand their physiologic significance. Several recent studies have demonstrated that extracellular vesicles released from cells serve as a mode of cellular communication. They can carry diverse molecular payload (e.g. nucleic acids, bioactive lipids and proteins) to distal organs and recipient cells. Extracellular vesicles can be classified into three major groups: exosomes, microvesicles, and apoptotic bodies. All these types of extracellular vesicles can be found i...