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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-3-12
pubmed:abstractText
Previous reports have demonstrated that stressful stimuli markedly influenced physiological conditions and homeostasis. In this study, we examined the influence of high population density environment on barrier function and water retention property of skin in mice. Overcrowding stress induced dramatic body weight reduction and significant increase in adrenal gland weight. Macroscopic skin appearance showed moderate exfoliation and slight wrinkle formation in the stress group. Moreover epidermis hyperplasia not concomitant with inflammatory reactions such as infiltration of immunocytes and vasodilation was observed in the skin from the stress group. Skin surface conductance in the stress group was significantly lower than in the control group. On the other hand, transepidermal water loss in the stress group increased significantly, compared to the control group. Moreover, transdermal penetration of indomethacin and nicotinic acid amide was enhanced significantly. These results suggest that overcrowding stress induced impairment of barrier function and water retention property. To elucidate the mechanism of overcrowding stress-induce dry skin, contents of ceramide and pyrrolidone carboxylic acid, which are the important compounds contributing to those functions were evaluated. Both of them in stratum corneum declined significantly in the stress group. Taken together, these results demonstrate that overcrowding stress induced dry skin, and that the impairment of barrier function and water retention property correlated with decrease in ceramide and pyrrolidone carboxylic acid.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0923-1811
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
189-97
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Effect of high population density environment on skin barrier function in mice.
pubmed:affiliation
Biochemistry Laboratory, Pias Co. Ltd., 1-3-1 Murotani Nishi-ku, 6512241, Kobe, Japan. jdd03257@nifty.ne.jp
pubmed:publicationType
Journal Article