|   | 
        Mean region
          area    values, % | 
        Mean region    density
          values,    (pixel)-2 | 
        Circularity
          coefficient | 
        Elongation
          coefficient | 
        Other,
          deformed | 
       
      
        | Untreated | 
        20.0701  | 
        0.0069  | 
        246  | 
        253  | 
        334  | 
       
      
        | Dimer | 
        22.2827  | 
        0.0066  | 
        242  | 
        115  | 
        443  | 
       
      
        | Monomer | 
        14.7786  | 
        0.0036  | 
        96  | 
        100  | 
        247  | 
       
      
        | Pool | 
        17.3205 | 
        0.0062 | 
        152 | 
        158 | 
        424 | 
       
     
    
    a HUVEC cultures were initiated with 104cells and treated with purified β2GPI and
    its purification fractions in the final concentration of 0.2 μM. Dilution buffer was
    employed in the untreated cultures as a control. Results from a typical assay |