Abstract:
:Tumor necrosis factor-alpha (TNF-alpha) has been demonstrated to selectively decrease the production of type I and type III collagens in human dermal fibroblasts. The effects of the commonly used food antioxidants, butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), alpha-tocopherol, propyl gallate, superoxide dismutase (SOD), and catalase on TNF-alpha-induced growth enhancement and collagen metabolism were evaluated in the present study. BHA at concentrations of both 5 x 10(-5) and 10(-4) M inhibited cell proliferation and DNA synthesis induced by 10 ng/ml TNF-alpha in human dermal fibroblasts, while other antioxidants had minimal effects. Further, BHA (5 x 10(-5) M and 10(-4) M) significantly blocked TNF-alpha-induced decreases in collagen synthesis. These results suggest that antioxidants such as BHA may be involved in the modulation of collagen synthesis by TNF-alpha in human dermal fibroblasts.
journal_name
J Dermatol Scijournal_title
Journal of dermatological scienceauthors
Taniguchi S,Furukawa M,Kono T,Hisa T,Ishii M,Hamada Tdoi
10.1016/0923-1811(95)00463-7subject
Has Abstractpub_date
1996-04-01 00:00:00pages
44-9issue
1eissn
0923-1811issn
1873-569Xpii
0923181195004637journal_volume
12pub_type
杂志文章abstract:BACKGROUND:Decreased skin elasticity is considered as a factor that promotes wrinkle formation. However, the relationship between decreased skin elasticity and the formation of wrinkles is not fully understood. OBJECTIVE:The purpose of this study is to characterize the relationship between skin elasticity and wrinkle ...
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abstract:UNLABELLED:The percutaneous absorption studies were performed using a flow-through diffusion cell system with skin specimens from 24 healthy women to assess the penetration of glycolic acid (GA). Percentages of GA, based on 14C-labelled activity, found in the skin after application of 4% GA at pH 2.0 or pH 3.8, after 2...
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journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
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abstract::Hamster flank organs are useful for studying androgen-dependent growth of hair follicles and sebaceous glands. A cDNA clone (FAR-17a) was isolated from the hamster flank organ, whose expression was highly sensitive to androgen. The mRNA level of this gene was reduced after castration but reappeared after testosterone ...
journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/s0923-1811(97)00597-5
更新日期:1997-05-01 00:00:00
abstract::It has recently been demonstrated that genetic defects in keratin genes cause a number of different skin disorders, including epidermolysis bullosa simplex (EBS), epidermolytic hyperkeratosis (EH), the EH form of epidermal nevi, epidermolytic and non-epidermolytic forms of palmoplantar keratoderma (EPPK and PPK) and p...
journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
pub_type: 杂志文章
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