During the first stage of wound healing, inflammation around the damaged area stimulates the production of a substance called collagen.

伤口愈合的第一个阶段，受损区域的炎症反应刺激一种叫做胶原蛋白的物质生成。

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Now scientists have discovered that the key to scar-free wound healing could involve blocking the action of a common sugar.

当今，科学家已经发现治疗无疤痕伤害的关键在于阻隔普通糖分子的活跃。

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Or it may simply be a by-product of the fact that these two proteins have different functions in other situations, such as wound healing or repair of sunlight-induced skin damage.

或者它可能是一个简单的副产品，事实上这两种蛋白质在其他情况下具有不同的功能，如伤口愈合或阳光引起损伤的皮肤修复。

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Peng Tee Khaw, professor of glaucoma and wound healing at Moorfields Eye Hospital in London, told BBC News Online the rats were fed a huge amount of MSG.

BBC: Food additives 'affect sight'