The total cell numbers were determined using a NucleoCounter NC-100 (Chemometec, Allerød, Denmark). SVF was analyzed by FCM to determine the ratio of ASCs to SVF. Cells in SVF were incubated with FITC-conjugated CD31 (BD Biosciences, New Jersey, USA) and PE-conjugated CD34 (BD Biosciences). The labeled cells were washed with phosphate-buffered saline and analyzed using a FACSCalibur flow cytometer (CellQuest software, BD Biosciences). ASCs were defined as the CD31/CD34+ subpopulation [11 (link)-13 (link)]. ASCs in SVF were calculated as follows: ASCs in SVF (cells) = total cell number × ASC:SVF.
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