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Eur J Clin Nutr ; 63(11): 1290-6, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19707227


OBJECTIVES: The aim of our research was to describe cultural, socioeconomic and nutritional determinants associated with functional food consumption. METHODS: Cross-sectional design in 5000 military men. Using mailed questionnaires, the functional food consumption frequency was recorded. RESULTS: Margarines fortified with phytosterols or phytostanols were used on a daily basis by 26.3% of the responders. Only 4.7% took a daily portion of probiotics, whereas 14.0% consumed one or more portions of nuts a week. One man out of three consumed one cup of tea daily, whereas 10.2% consumed one glass of red wine daily. Three or more portions of fruit a day were consumed by 19.1%, and two or more portions of vegetables a day by 26.6%. Only 12.3% consumed a portion of fatty fish weekly. After adjustment for age, body mass index, physical activity, use of vitamin supplements, smoking, marital status, cultural background, educational and income level, the daily consumption of fortified margarines increased with age. The consumption of fermented dairy products increased with physical activity and with the use of vitamin supplements. The consumption of fortified margarines, nuts, tea and fatty fish was strongly influenced by cultural background, with higher consumptions for Flemish-speaking men compared with French-speaking persons. Daily consumption of red wine was higher in French-speaking men and in higher educated men. Finally, functional food consumption was associated with a healthy dietary pattern. CONCLUSION: Age, physical activity, level of education, use of vitamin supplements and cultural background are predictors of functional food consumption patterns.

Cultura , Dieta/etnología , Dieta/estadística & datos numéricos , Alimentos Funcionales , Personal Militar/estadística & datos numéricos , Adulto , Distribución por Edad , Bélgica , Estudios Transversales , Suplementos Dietéticos , Escolaridad , Alimentos Fortificados , Estado de Salud , Humanos , Estilo de Vida , Masculino , Persona de Mediana Edad , Personal Militar/educación , Personal Militar/psicología , Encuestas Nutricionales , Análisis de Componente Principal , Factores Socioeconómicos , Encuestas y Cuestionarios , Adulto Joven
Arch Dermatol Res ; 299(10): 499-505, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-17960402


The appearance of hair plays an important role in people's overall physical appearance and self-perception. Silicon (Si) has been suggested to have a role in the formation of connective tissue and is present at 1-10 ppm in hair. Choline-stabilized orthosilicic acid ("ch-OSA") is a bioavailable form of silicon which was found to improve skin microrelief and skin mechanical properties in women with photoaged skin. The effect of ch-OSA on hair was investigated in a randomized, double blind, placebo-controlled study. Forty-eight women with fine hair were given 10 mg Si/day in the form of ch-OSA beadlets (n = 24) or a placebo (n = 24), orally for 9 months. Hair morphology and tensile properties were evaluated before and after treatment. Urinary silicon concentration increased significantly in the ch-OSA supplemented group but not in the placebo group. The elastic gradient decreased in both groups but the change was significantly smaller in the ch-OSA group (-4.52%) compared to placebo group (-11.9%). Break load changed significantly in the placebo group (-10.8%) but not in the ch-OSA supplemented group (-2.20%). Break stress and elastic modulus decreased in both groups but the change was smaller in the ch-OSA group. The cross sectional area increased significantly after 9 months compared to baseline in ch-OSA supplemented subjects but not in the placebo group. The change in urinary silicon excretion was significantly correlated with the change in cross sectional area. Oral intake of ch-OSA had a positive effect on tensile strength including elasticity and break load and resulted in thicker hair.

Suplementos Dietéticos , Cabello/efectos de los fármacos , Ácido Silícico/farmacología , Adolescente , Adulto , Colina , Método Doble Ciego , Femenino , Cabello/anatomía & histología , Cabello/fisiología , Humanos , Persona de Mediana Edad , Ácido Silícico/química , Ácido Silícico/farmacocinética , Resistencia a la Tracción/efectos de los fármacos
Arch Dermatol Res ; 297(4): 147-53, 2005 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-16205932


Chronic exposure of the skin to sunlight causes damage to the underlying connective tissue with a loss of elasticity and firmness. Silicon (Si) was suggested to have an important function in the formation and maintenance of connective tissue. Choline-stabilized orthosilicic acid ("ch-OSA") is a bioavailable form of silicon which was found to increase the hydroxyproline concentration in the dermis of animals. The effect of ch-OSA on skin, nails and hair was investigated in a randomized, double blind, placebo-controlled study. Fifty women with photodamaged facial skin were administered orally during 20 weeks, 10 mg Si/day in the form of ch-OSA pellets (n=25) or a placebo (n=25). Noninvasive methods were used to evaluate skin microrelief (forearm), hydration (forearm) and mechanical anisotropy (forehead). Volunteers evaluated on a virtual analog scale (VAS, "none=0, severe=3") brittleness of hair and nails. The serum Si concentration was significantly higher after a 20-week supplementation in subjects with ch-OSA compared to the placebo group. Skin roughness parameters increased in the placebo group (Rt:+8%; Rm: +11%; Rz: +6%) but decreased in the ch-OSA group (Rt: -16%; Rm: -19%; Rz: -8%). The change in roughness from baseline was significantly different between ch-OSA and placebo groups for Rt and Rm. The difference in longitudinal and lateral shear propagation time increased after 20 weeks in the placebo group but decreased in the ch-OSA group suggesting improvement in isotropy of the skin. VAS scores for nail and hair brittleness were significantly lower after 20 weeks in the ch-OSA group compared to baseline scores. Oral intake of ch-OSA during the 20 weeks results in a significant positive effect on skin surface and skin mechanical properties, and on brittleness of hair and nails.

Colina , Cabello/efectos de los fármacos , Uñas/efectos de los fármacos , Ácido Silícico/administración & dosificación , Piel/efectos de los fármacos , Piel/efectos de la radiación , Rayos Ultravioleta/efectos adversos , Administración Oral , Adulto , Anciano , Fenómenos Biomecánicos , Método Doble Ciego , Cara , Femenino , Cabello/patología , Cabello/fisiopatología , Humanos , Hidroxiprolina/metabolismo , Persona de Mediana Edad , Uñas/patología , Uñas/fisiopatología , Ácido Silícico/farmacología , Ácido Silícico/uso terapéutico , Silicio/sangre , Piel/metabolismo , Piel/patología , Factores de Tiempo
J Dermatol ; 25(6): 412-4, 1998 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-9675352


Hydroquinone is a well known reagent used in the treatment of pigmentation disorders. The instability of the quinones and the required active concentration make topical treatment rather difficult. We tested the efficacy of an ascorbate-phytohydroquinone complex that inhibits the synthesis of melanin and promotes the degradation of the existing melanin. Lentigo senile lesions were evaluated before and after 1 month of treatment. Objective skin color evaluation was performed instrumentally. After one month of treatment, a clear depigmentation of the macules was measured. None of the volunteers reported any side effects from the prolonged treatment with the hydroquinone containing product.

Fármacos Dermatológicos/uso terapéutico , Glucósidos/uso terapéutico , Lentigo/tratamiento farmacológico , Administración Cutánea , Anciano , Anciano de 80 o más Años , Apiaceae , Ácido Ascórbico/administración & dosificación , Ácido Ascórbico/uso terapéutico , Peróxido de Benzoílo/uso terapéutico , Citrus , Colorimetría , Fármacos Dermatológicos/administración & dosificación , Combinación de Medicamentos , Femenino , Estudios de Seguimiento , Glucósidos/administración & dosificación , Humanos , Hidroquinonas/administración & dosificación , Hidroquinonas/uso terapéutico , Masculino , Melaninas/antagonistas & inhibidores , Melaninas/metabolismo , Persona de Mediana Edad , Aceites Volátiles/uso terapéutico , Oxiquinolina/uso terapéutico , Extractos Vegetales/uso terapéutico , Pigmentación de la Piel/efectos de los fármacos