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Table 1 Semi-quantitative scale for the histological parameters

From: Mesenchymal stromal cells for cutaneous wound healing in a rabbit model: pre-clinical study applicable in the pediatric surgical setting

Score 0 1 2 3
Re-epithelization rate Early signs of re-epithelization Regenerated mono-layered epithelium Regenerated multi-layered epithelium Differentiated multi-layered epithelium (stratum corneum)
Inflammatory infiltrate (white cells) None Few Fair Rich
Collagen content in granulation tissue None Poor Moderate High
PCNA in epidermis and dermis (positive nuclei/mm of epidermis or mm2 of dermis) 0 1–9 10–30 >30