2009•Chinese Journal of New Clinical MedicineRequires access

Expression and significance of IGF-I and IGF-IR in different part of keloid

Wei Haiming

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Abstract

Objective To explore the aggressive growth characteristics in peripheral parts and central parts of keloid by analysing the insulin-like growth factor-I(IGF-I)and the insulin-like growth factor-I receptor(IGF-IR)index.Methods Fibroblasts of 8 keloids cases and 4 normal skin cases were investigated by immunohistochemical analysis of IGF-I and IGF-IR.IGF-I and IGF-IR index of difference parts in keloids and normal skin were compared.Results These were no positive fibroblasts in normal skin samples.The IGF-I and IGF-IR index of peripheral parts of keloids are higher than those of central parts,and there is significant difference(P0.05).Conclusion The difference in distribution of IGF-I and IGF-IR index may be responsible for the aggressive growth of keloid.

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Objective To explore the aggressive growth characteristics in peripheral parts and central parts of keloid by analysing the insulin-like growth factor-I(IGF-I)and the insulin-like growth factor-I receptor(IGF-IR)index.Methods Fibroblasts of 8 keloids cases and 4 normal skin cases were investigated by immunohistochemical analysis of IGF-I and IGF-IR.IGF-I and IGF-IR index of difference parts in keloids and normal skin were compared.Results These were no positive fibroblasts in normal skin samples.The IGF-I and IGF-IR index of peripheral parts of keloids are higher than those of central parts,and there is significant difference(P0.05).Conclusion The difference in distribution of IGF-I and IGF-IR index may be responsible for the aggressive growth of keloid.

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Available abstract

Objective To explore the aggressive growth characteristics in peripheral parts and central parts of keloid by analysing the insulin-like growth factor-I(IGF-I)and the insulin-like growth factor-I receptor(IGF-IR)index.Methods Fibroblasts of 8 keloids cases and 4 normal skin cases were investigated by immunohistochemical analysis of IGF-I and IGF-IR.IGF-I and IGF-IR index of difference parts in keloids and normal skin were compared.Results These were no positive fibroblasts in normal skin samples.The IGF-I and IGF-IR index of peripheral parts of keloids are higher than those of central parts,and there is significant difference(P0.05).Conclusion The difference in distribution of IGF-I and IGF-IR index may be responsible for the aggressive growth of keloid.

Key concepts: Keloid, Medicine, Immunohistochemistry, Growth factor, Significant difference, Insulin-like growth factor, Peripheral, Transforming growth factor

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