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MC1R major variants are a risk factor of sleep lines in Caucasian women.
MedLine Citation:
PMID:  23452314     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Sleep lines are caused by individual's sleeping positions and should be differentiated from expression wrinkles. OBJECTIVE: The aim of the study was to investigate possible risk factors for sleep lines on a sizeable sample of middle-aged Caucasian women. METHODS: This study involved a sample of 542 French middle-aged women (44 to 70 years old) from Paris area. Three standardized facial photographs (face and profiles) were examined independently by two dermatologists allowing the identification of sleep lines and the evaluation of the severity of several facial skin features. Possible impacts of MC1R gene polymorphisms were tested using logistic regression models. RESULTS: Sixty women (11%) had facial sleep lines and showed generally more than one sleep line. The sleep lines were often located on the forehead, along the nose, on the cheeks and under the eyes, and more rarely on the chin. As expected, the sleep lines were associated with age, and the women with sleep lines showed also more severe signs of skin ageing. After adjustment on possible confounders, the presence of two major diminished function variants of the MC1R gene was identified as a strong risk factor for sleep lines [adjusted odds ratios (AOR) (95% CI): 8.25 (2.62-25.97)]. DISCUSSION/CONCLUSION: The data in the literature are scarce and this study is the first to be conducted on a sizeable sample of women. Our results suggest that genetic variations of MC1R are important determinants of the development of sleep lines.
Authors:
R Jdid; K Ezzedine; J Latreille; P Galan; S Hercberg; D Malvy; E Tschachler; C Guinot
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-3-4
Journal Detail:
Title:  Journal of the European Academy of Dermatology and Venereology : JEADV     Volume:  -     ISSN:  1468-3083     ISO Abbreviation:  J Eur Acad Dermatol Venereol     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-3-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9216037     Medline TA:  J Eur Acad Dermatol Venereol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 The Authors Journal of the European Academy of Dermatology and Venereology © 2013 European Academy of Dermatology and Venereology.
Affiliation:
CE.R.I.E.S., (research centre on human skin founded by CHANEL), Neuilly sur Seine, France.
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