Fig. 4From: Effect of bFGF and fibroblasts combined with hyaluronic acid-based hydrogels on soft tissue augmentation: an experimental study in ratsMicroscopic view of the hyaluronan gel filler (HGF) groups stained with HE. All groups showed no soft tissue regeneration. HGF remained surrounded by a thin fibrous capsule (HE; original magnification, × 40). a Hyaluronan gel filler alone, b hyaluronan gel filler combined with bFGF, c hyaluronan gel filler combined with fibroblasts, and d hyaluronan gel filler mixed with bFGF and fibroblastsBack to article page