Microparticles: Induced Exosomes in Cardiovascular Pathology255Exosomes from human cardiac-resident progenitor cells are more cardioprotective than exosomes from bone marrow mesenchymal stem cells via a pregnancy-associated plasma protein-a-dependent mechanism256The human pericardial fluid is enriched with cardiovascular-expressed microRNAs and exosomes with therapeutic potential257Circulating microparticles of healthy origins protect against atherosclerotic vascular disease via microRNA transfer to endoth