title: Matrix metalloproteinase-1 and skin ageing in smokers.
abstract: Smokers look older than non-smokers of the same age. We have compared the concentrations of mRNA for matrix metalloproteinase 1 (MMP-1) in the buttock skin of smokers and non-smokers with quantitative real-time polymerase chain reactions. MMP-1 degrades collagen, which accounts for at least 70% of the dry weight of dermis. We report significantly more MMP-1 mRNA in the skin of smokers than non-smokers whereas no difference was seen for the tissue inhibitor of metalloproteinases 1 (TIMP-1) or the housekeeping gene GAPDH (glyceraldehyde-3-phosphate dehydrogenase). We suggest that smoking-induced MMP-1 might be important in the skin-ageing effects of tobacco smoking.
authors: C
authors: C
authors: Lahmann
authors: J
authors: J
authors: Bergemann
authors: G
authors: G
authors: Harrison
authors: A R
authors: AR
authors: Young
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D020781:Matrix Metalloproteinase 1 / Q000187:drug effects* / Q000235:genetics / Q000378:metabolism; D012333:RNA, Messenger / Q000378:metabolism; D015595:Skin Aging / Q000187:drug effects*; D012907:Smoking / Q000009:adverse effects*
chemical_list: D012333:RNA, Messenger; D020781:Matrix Metalloproteinase 1