Adipocyte-derived EVs were isolated using the commercially available EoxQuick Precipitation Solution (System Biosciences, Mountain View, CA) from the serum of an all-female subset, chosen to be phenotypically representative of the larger cohort, as previously described [15 (link)]. Total RNA was extracted from adipocyte-derived EVs using the commercially available SeraMir Exosome RNA Amplification Kit (System Biosciences, Mountain View, CA) according to manufacturer instructions. RNA was labeled with Affymetrix® FlashTag™ Biotin HSR RNA Labeling Kit (Affymetrix, Santa Clara, CA) according to standard procedures. Labeled RNA was hybridized to Affymetrix GeneChip microRNA 4.0 arrays and run using a Fluidics Station 450 Protocol (FS450_002) (Affymetrix, Santa Clara, CA). MicroRNAs and ProbeIDs used for statistical analysis are provided in Additional file 2: Table S1 (Accession #: GSE125494).
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