Infographic: Exosomes and Insulin Resistance Circulating microRNAs may help explain how excess fat can lead to insulin resistance in distant cells. @ Infographic: Directing Exosome Traffic Researchers harness a protein to send cargo-carrying exosomes to mouse muscles. @ Putting Exosomes to Work Researchers identify a handy tool for tinkering with the versatile vesicles. @ Self-Control Center in the Brain Linked to Weight Loss. @ Infographic: Visualizing Gene Expression STARmap reveals expression levels of multiple genes within thick tissue sections.