Document Detail

Tobacco smoke causes premature skin aging.
MedLine Citation:
PMID:  17951030     Owner:  NLM     Status:  MEDLINE    
Smoking tobacco is the most preventable cause of morbidity and is responsible for more than three million deaths a year worldwide. In addition to a strong association with a number of systemic diseases, smoking is also associated with many dermatological conditions, including poor wound healing, premature skin aging, squamous cell carcinoma, melanoma, oral cancer, acne, psoriasis, and hair loss. This review focuses on the effects of smoking on premature skin aging. It has been long established that smoking has deleterious effects on skin. Epidemiological studies indicate that smoking is an important environmental factor in premature skin aging. In vitro studies indicate that tobacco smoke extract impairs the production of collagen and increases the production of tropoelastin and matrix metalloproteinases (MMP), which degrade matrix proteins, and also causes an abnormal production of elastosis material. Smoking increases MMP levels, which leads to the degradation of collagen, elastic fibers, and proteoglycans, suggesting an imbalance between biosynthesis and degradation in dermal connective tissue metabolism. Reactive oxygen species are also involved in tobacco smoke-induced premature skin aging. Scavengers of reactive oxygen species ameliorate the induction of MMP. Tobacco smoke extract also impacts dermal connective tissue in nude mice. Thus, in vitro and in vivo evidence indicates that smoking tobacco leads to accelerated aging of the skin. These findings might be useful to motivate those patients who are more concerned about their appearance than the potential internal damage associated with smoking to stop smoking.
Akimichi Morita
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2007-10-24
Journal Detail:
Title:  Journal of dermatological science     Volume:  48     ISSN:  0923-1811     ISO Abbreviation:  J. Dermatol. Sci.     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-06     Completed Date:  2008-01-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9011485     Medline TA:  J Dermatol Sci     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  169-75     Citation Subset:  IM    
Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan.
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MeSH Terms
Aging, Premature / etiology*
Collagen / metabolism
Matrix Metalloproteinases / metabolism
Plant Extracts / pharmacology
Skin Aging / drug effects*
Smoking / adverse effects*
Tobacco / adverse effects
Reg. No./Substance:
0/Plant Extracts; 9007-34-5/Collagen; EC 3.4.24.-/Matrix Metalloproteinases

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