ABSTRACT
Los polifenoles (flavonoides y antocianinas) están ampliamente distribuidos entre las diferentes especies vegetales. Estos poseen gran capacidad antioxidante; existiendo correlación positiva entre la actividad antioxidante y los polifenoles totales. El objetivo de este trabajo fue evaluar: 1° El contenido de polifenoles y antocianas totales de semillas, glumelas y extracto acuoso de Avena sativa L. 2° El efecto de la aplicación tópica de extracto acuoso de avena en 45 casos (10 mujeres y 35 hombres, entre 1 y 56 años de edad) con dermatitis atópica, dermatitis de contacto irritativa y dermatitis de contacto alérgica; y 30 controles normales (15 mujeres y 15 hombres, entre 1 y 60 años de edad). Tratamiento: aplicación de compresas del extracto crudo de avena en la piel dañada durante 5 minutos, seguida de la colocación de la biomasa (T°= 33 + 2°C) cubierta por una tela de gasa durante 5 minutos. Dicha biomasa se retira con el extracto de avena líquido. Entre 1 y 36 meses de iniciado el tratamiento se observó remisión de los síntomas cutáneos. El extracto acuoso, la biomasa de Avena sativa L., glumelas y semillas enteras contenían 6.12+0,45, 46,11+0,36, 212,81+0,19 y 286,60+0,50 mg/100 g ác. Gálico, respectivamente, de polifenoles totales.
Polyphenols (flavonoids and anthocyanins) are widely spread among the different vegetables species. They have a big antioxidant capacity. One important correlation exists between the antioxidant activity and the quantity of total polyphenols. The objective of this work was to evaluate: 1- the contents of polyphenols and anthocyanins of whole seeds, glumes and aqueous extract of Avena Sativa L., 2- the effects of topical application of aqueous extract of Avena sativa L. in 45 patients (10 females and 35 males, between 1 and 56 years olds) with Atopic Dermatitis, Contact Irritative Dermatitis and Contact Allergic Dermatitis, and 30 normal controls (15 females and 15 males, between 1 and 60 years olds). Treatment: were applications of compress of aqueous extract Avena Sativa L over the damaged skin for approximately five minutes, immediately after, one must cover with the biomass of oat (T° = 33 + 2 C°) and a clothe for five minutes. The biomass was removed using the Avena Sativa L. acqueous extract. Remissions of the cutaneous symptoms were noticed between 1 and 36 months after the beginning of the treatment. Aqueous extract, Avena Sativa L. biomass, glumes and whole seeds contents were: 6.12+0.45; 46.11+0.36, 212.81+0.19 y 286.60+0.50 mg/100 g gallic ac., respectively, of total polyphenols.
Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Avena/drug effects , Plant Extracts/therapeutic use , Dermatitis, Allergic Contact/therapy , Dermatitis, Atopic/therapy , Dermatitis, Irritant/therapy , Polyphenols/administration & dosage , Polyphenols/biosynthesis , Polyphenols/therapeutic useABSTRACT
In order to assess the qualitative and quantitative differences in physical performance, twenty sedentary females (Group A), twenty sedentary males (Group B) and twenty amateur sportsmen who jogged 45-60 min 2-3 times a week (Group C), have been evaluated by spiroergometric test on bicycle ergometer. At the submaximal level of 90 Watts the cardiorespiratory efficiency, as reflected by the values of double product (DP) and ventilatory equivalent (VE) was statistically different in the three Groups (A less than B less than C). At the maximal work the females, compared to sedentary males, achieved lower values (P less than 0.001) of maximal working capacity (MWC), total work (TW), systolic blood pressure (SBP), maximal O2 uptake (VO2 max), O2 pulse (O2P) and a greater (P less than 0.001) energetic cost (EC = HRmax/TW): sedentary males, compared to amateur sportsmen, achieved lower values (P less than 0.001) of MWC, TW, VO2 max, O2P and greater values (P less than 0.001) of VE, EC, HR, and DP (P less than 0.02). The lower VO2 max in females can be mainly ascribed to the lower stroke volume which in turn correlates with smaller body surface area. The greater VO2 max and O2P max of amateur sportsmen can be ascribed to larger stroke volume and muscular O2 uptake brought about by jogging. Furthermore the females, compared to sedentary males, have achieved VO2 max and O2P max that were 29% lower, a TW 43% lower, while EC was 73,4% higher. The sedentary males, compared to amateur sportsmen, have achieved lower values of VO2 max (-14,3%), O2P max (-17,5%) and TW (-31,3%) with DP and EC 8,3% and 50,7% higher, respectively. On the grounds of these data sedentary subjects, particularly females, pay a high energetic cost during physical activity. The practice of an aerobic sport such as jogging, may notably increase cardiovascular and respiratory efficiency.
