Glycosaminoglycans in scar tissue

Glycosaminoglycans in scar tissue

298 Glycosaminoglycans in scar tissue The chemical composition of granulation tissue taken from severely burned patients has been compared with the c...

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Glycosaminoglycans in scar tissue The chemical composition of granulation tissue taken from severely burned patients has been compared with the composition of hypertrophic scars, keloids, mature scars and normal skin. Granulation tissue has higher levels of chondroitin-4-sulphate relative to other glycosaminoglycans and compared with the low levels in mature scars and normal skin. In children the granulation tissue contained significantly higher levels of chondroitin-4-sulphate than in hypertrophic scars from children, whereas the content of chondroitin4sulphate in adult granulation tissue was very similar to that in adult hypertrophic scars. The dermatan sulphate levels in granulation tissue are significantly

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lower than the dermatan sulphate levels in hypertrophic scars, mature scars or normal skin. As collagen matures and normal scars form, the levels of chondroitin-4-suphate decrease and the levels of dermatan sulphate increase. In contrast when hypertrophic scars develop, the chondroitin-4sulphate levels remain high and the dermatan sulphate levels increase but do not reach the levels of those in mature scar tissue. Hypertrophic and mature scars have relatively low concentrations of hyaluronic acid, granulation tissue has intermediate levels and normal skin has a high content. Shetlar M. R., Shetlar, C. L. and Kischer C. W. (1981) Glycosaminoglycans in granulation tissue and hypertrophic scars. Burns 8,21.

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