Rubeosis faciei diabeticorum is not associated with oxidative stress and skin autofluorescence.

Background: Rubeosis faciei diabeticorum is a persistent facial erythema in patients with diabetes mellitus. The actual pathogenesis has not been studied. However, it is speculated to be a cutaneous diabetic microangiopathy.

Local antimicrobial, protease and cytokine defense systems in psoriatic skin.

Background: Psoriasis vulgaris is an inflammatory skin condition characterized by dramatic biochemical and immunological changes.

Aims: The aim of the study was to evaluate antimicrobial response, tissue degeneration reactions and distribution of inflammatory cytokines in untreated psoriatic skin as well as the correlations between these factors and influence on the course of the disease.

Methods: We evaluated skin samples obtained from routine punch biopsies in 40 patients with psoriasis vulgaris.