Anti-inflammatory and antiradical effects of a 2% diosmin cream in a human skin organ culture as model.

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Boisnic S, Branchet MC, Gouhier-Kodas C, Verriere F, Jabbour V

Anti-inflammatory and antiradical effects of a 2% diosmin cream in a human skin organ culture as model.

J Cosmet Dermatol. 2018 Oct;17(5):848-854. doi: 10.1111/jocd.12778. Epub 2018 Sep 10.

PubMed ID
30203575 [ View in PubMed
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Abstract

BACKGROUND: Diosmin, a naturally occurring flavonoid, is considered as a vascular-protective agent and is used orally to treat chronic venous insufficiency. It exhibits anti-inflammatory and free radical scavenging properties, but, like many other flavonoids, it is poorly absorbed in the small intestine. OBJECTIVE: Our aim was to investigate the skin protective effects of a diosmin-based cream, using skin organ culture as model. METHODS: Fragments of human skin explants, cultured ex vivo, were allocated to four treatment groups: no cream, no cream + stress, placebo cream + stress, and 2% diosmin cream + stress. Stress was induced by exposure to either substance P (anti-inflammatory effects' assessment) or UVB irradiation (free radical scavenging effects' assessment). Vascular dilation and the pro-inflammatory mediator IL-8 release were determined in the first model, whereas hydrogen peroxide level and the number of cyclobutane pyrimidine-positive cells were evaluated in the second model. RESULTS: In the substance P-induced inflammation model, 2% diosmin cream exhibited significant vasoconstrictive (proportion of dilated capillaries: -29%, capillary luminal area: -49% vs no cream + stress) and anti-inflammatory (IL-8 release: -36% vs no cream + stress) effects. In the UVB irradiation model, 2% diosmin cream significantly reduced hydrogen peroxide production and cyclobutane pyrimidine dimer formation (-45% and -36% vs no cream + stress, respectively). These effects were not observed with placebo cream. CONCLUSION: Diosmin administered topically may protect skin against the biological effects of various exogenous or endogenous stresses, such as those involved in chronic venous disease.

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