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Table 1 Distribution of bone marrow aspiration

From: Comparison and characterization of enriched mesenchymal stem cells obtained by the repeated filtration of autologous bone marrow through porous biomaterials

Groups Number of volunteers Collecting volume Volume for filtration Volume for detection
Types of carrier materials 9 21 ml 20 ml 1 ml
Volume ratio of bone marrow/carrier material 3 29 ml 4/10/14 ml 1 ml
Filtration frequency 5 21 ml 20 ml 1 ml
Components and safety evaluation 6 22 or 24 ml 20 ml 1 + 1 + 2 mla
  1. a1 ml for counting of bone marrow nucleated cells and MSCs (six volunteers); 1 ml for primary bone marrow MSCs culture (six volunteers); 2 ml for bone marrow serum extraction to detecting soluble protein in bone marrow (one volunteer)