Skeptics have claimed that the structures were just shredded collagen fibers and that Sinosauropteryx had a smooth reptilian skin.

不过怀疑者声称这种结构不过是被撕碎的胶原纤维，而中华龙鸟有着光滑的爬行动物的皮肤。

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Smoking also damages collagen and elastin — fibers that give your skin its strength and elasticity.

吸烟也会破坏胶原蛋白和弹性蛋白——纤维细胞，它将使你的皮肤具有韧性和弹性。

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Result Lanthanum chloride induced apoptosis of fibroblasts in the injured skin and decreased the production of collagenous fibers and the synthesis of collagen in a certain concentration range.

结果在一定范围内，氯化镧可诱导创伤部位皮肤中成纤维细胞凋亡，减少了胶原的合成和胶原纤维的增生。

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In ablative (wounding) laser resurfacing, a laser beam destroys the outer layer of skin (epidermis) and heats the underlying skin (dermis), which stimulates the growth of new collagen fibers.

CNN: Wrinkles