Journal of the European Academy of Dermatology and Venereology : JEADV
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J Eur Acad Dermatol Venereol · Jun 2008
Randomized Controlled TrialA randomized, single-blind, placebo-controlled, split-face study with pimecrolimus cream 1% for papulopustular rosacea.
Rosacea is a common inflammatory skin disorder for which the pathogenesis is unclear. Currently, there is no cure for rosacea, and it seems that standard therapies have focused mainly on minimizing inflammation. ⋯ Our data implicated that pimecrolimus cream is not superior to placebo except for its efficacy on erythema. We believe that pimecrolimus cream can be a treatment option for rosacea patients with high erythema score for whom an initial accelerated improvement is needed. We believe further studies with topical pimecrolimus cream on larger study groups with different subtypes and severity of rosacea will clarify the potential effect of pimecrolimus cream for the treatment of rosacea.
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J Eur Acad Dermatol Venereol · Jun 2008
Reported sexually transmitted infections in Swedish Internet-using men and women.
Although the Internet has become a forum for making sexual contacts, and has been associated with increased sexually transmitted infection (STI) transmission, we have little information of history of STIs in Internet-based samples. The Internet behaviours that are associated with STI acquisition are poorly understood. We analysed STI histories reported by 904 Swedish men and 931 Swedish women who responded to an Internet-based survey on sexual behaviour in 2002: 16.6% of men and 22.5% of women reported a lifetime history of STIs, with Chlamydia being the most common for both genders. 3% of men and 5% of women who reported an STI, indicated that they had had more than one. ⋯ Contrary to prior research, these results suggest no relationship between STI and specific Internet characteristics usage patterns. These data suggest that the Internet is not yet a major source of STIs in Swedish men and women. Given these STI histories, the Internet may be a useful medium to include in STI prevention efforts.
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J Eur Acad Dermatol Venereol · May 2008
Comparative StudyUltrastructural findings in progressive macular hypomelanosis indicate decreased melanin production.
The pathogenesis of progressive macular hypomelanosis (PMH) is unknown. Recently, Westerhof et al. (Arch Dermatol 2004; 140: 210-214) hypothesized that Propionibacterium acnes produces a depigmenting factor that interferes with melanogenesis in the skin, resulting in hypopigmented spots. The purpose of the study is to gain an insight into the pathogenesis of PMH. ⋯ Hypopigmentation in PMH seems to be the result of an altered melanogenesis based on a decrease in melanin formation and a change in the distribution of melanosomes. In lesional skin of PMH patients with skin type V and VI less melanized, aggregated melanosomes in stead of single, mature melanosomes are transferred from melanocytes to keratinocytes. This results in a decrease of epidermal melanin. Further investigations are needed to determine the precise role of Propionibacterium acnes in this alteration of melanogenesis.