Fig. 5From: A unique heterologous fibrin sealant (HFS) as a candidate biological scaffold for mesenchymal stem cells in osteoporotic rats a Transmission electron microscopy (TEM) image of mesenchymal stem cells (MSCs) with fibrin sealant (HFS) showed that the HFS was not toxic to cells because the nuclei and cell morphology were undamaged; b TEM image of MSCs without HFS. Red arrow: HFS; yellow arrow: cell nucleus; white arrow: nucleolusBack to article page