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We have metalloproteinases which destroy our collagen cells, then we have tissue inhibitors of metalloproteinases (TIMPs), another enzyme which will counteract the effects of the MMPs. Impaired collagen production and skin repair Because smoking causes hyperexpression of the MMPs, it leads to an imbalance between the degradation and production of collagen cells in our skin, she states

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Fernandez: There are some flaws in this study that lead me to conclude it is not true

2 (Oxford University Press, 2013)

They were taking part in the Multi-Ethnic Study of Atherosclerosis Air Pollution (MESA Air) and MESA Lung studies