4.7 Article

Polydocanol foam stabilized by liposomes: Supramolecular nanoconstructs for sclerotherapy

Journal

COLLOIDS AND SURFACES B-BIOINTERFACES
Volume 175, Issue -, Pages 469-476

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfb.2018.12.027

Keywords

Polydocanol foam; Liposomes; Sclerotherapy; Physicochemical characterization; Inflammatory diseases; Chronic venous insufficiency

Funding

  1. Inter-regional Research Center for Food Safety and Health (IRC-FSH) [PON a3_00359]
  2. Research project of National Interest [2010H834LS_006, PAIN 2010-2011]

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Vascular pathology of the lower limbs is a widespread disease affecting the quality of life for more than 30% of the adult world population. Polydocanol foam is presently the main therapeutic option for treating varicosities, inflammation, and chronic disease which affect the vascular endothelium and blood vessels. Unfortunately, the commercial product contains detergents and surfactants which can provoke several side effects and decrease the efficacy of therapy. In an attempt to overcome these drawbacks, polydocanol foam was mixed with different liposomes before use. The resulting mixture was stable and generated supramolecular nanoconstructs, which may prevent the interaction of the components of the commercial polydocanol foam with the vascular endothelium. This effect depends on the presence of liposomes, which can induce polydocanol foam to change its structure from micelles to complex nanostructures, thus improving its stability. In this attempt, the physicochemical features of the resulting nanoconstructs were tested through dynamic- and multiple light scattering analyses, rheological studies and gel permeation chromatography, while the stability was tested in biological fluids. Our preliminary results showed that the nanoconstructs have some potential as therapeutic agents in sclerotherapy.

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