Chitin/therapeutic use; Diabetes Mellitus, Type 1/complications/pathology; Diabetes Mellitus, Type 2/complications/pathology; Double-Blind Method; Emollients/therapeutic use; Female; Foot Dermatoses/drug therapy/pathology; Galvanic Skin Response/drug effects; Humans; Menopause; Middle Aged; Skin/drug effects/pathology; Treatment Outcome; Water/analysis; Water Loss, Insensible/drug effects; beta-Glucans/therapeutic use
Abstract :
[en] BACKGROUND: Corneocyte accumulation (hyperkeratosis, xerosis) commonly occurs in the stratum corneum (SC) of the feet of diabetic patients, as well as menopausal women. OBJECTIVE: To compare the effects of a 2.5% chitin-glucan formulation with its placebo, and commercially available glycerol formulations. METHODS: This two-step controlled double-blind, randomized, intra-individual study was performed in 30 type 1 and 2 diabetic menopausal women suffering from xerosis of the feet. The formulations were applied once daily for 3 weeks. Electrometric assessments were performed on three sites of the feet at entry in the study, at weekly intervals during the treatment phase, and in a 2-week follow-up out of treatment. Positive controls consisted in two commercially available formulations enriched in glycerol. RESULTS: Data revealed an unequivocal benefit provided by the 2.5% chitin-glucan formulation compared with placebo. The electrometric values were significantly higher at each evaluation time during both treatment and follow-up phases. The two glycerol-enriched formulations showed slightly different kinetics of SC moisturization. A steep increase was followed by a plateau level and a rapid decline after stopping the treatments. CONCLUSION: The increased moisturization of the SC of the sole probably improves the desquamation process and reduces xerosis of the soles.
Disciplines :
Dermatology
Author, co-author :
Quatresooz, Pascale ; Centre Hospitalier Universitaire de Liège - CHU > Dermatopathologie
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