Virginia A. Aparicio García-Molina

Spatial-temporal parameters of gait in women with fibromyalgia

The aim of the present study was to determine if there are differences in such parameters among patients affected by fibromyalgia (FM) and healthy subjects and whether the degree of affectation by FM can decrease the gait parameters. We studied 55 women with FM and 44 controls. Gait analysis was performed using an instrumented walkway for measurement of the kinematic parameters of gait (GAITRite system), and patients completed a Spanish version of Fibromyalgia Impact Questionnaire (FIQ). Significant differences (p < 0.001) between FM and control groups were found in velocity, stride length, cadence, single support ratio, double support ratio, stance phase ratio, and swing phase ratio. There were significant inverse correlations between FIQ and velocity, stride length, swing phase, and single support, whereas significant direct correlations were found with stance phase and double support. Gait parameters of women affected by FM were severely impaired when compared to those of healthy women. Different factors such as lack of physical activity, bradikinesia, overweight, fatigue, and pain together with a lower isometric force in the legs can be responsible for the alterations in gait and poorer life quality of women with FM.The aim of the present study was to determine if there are differences in such parameters among patients affected by fibromyalgia (FM) and healthy subjects and whether the degree of affectation by FM can decrease the gait parameters. We studied 55 women with FM and 44 controls. Gait analysis was performed using an instrumented walkway for measurement of the kinematic parameters of gait (GAITRite system), and patients completed a Spanish version of Fibromyalgia Impact Questionnaire (FIQ). Significant differences (p < 0.001) between FM and control groups were found in velocity, stride length, cadence, single support ratio, double support ratio, stance phase ratio, and swing phase ratio. There were significant inverse correlations between FIQ and velocity, stride length, swing phase, and single support, whereas significant direct correlations were found with stance phase and double support. Gait parameters of women affected by FM were severely impaired when compared to those of healthy women. Different factors such as lack of physical activity, bradikinesia, overweight, fatigue, and pain together with a lower isometric force in the legs can be responsible for the alterations in gait and poorer life quality of women with FM.

Involución de la condición física por el envejecimiento

El porcentaje de poblacion mayor se esta incrementando en Espana. El envejecimiento produce una involucion de las capacidades fisicas, lo que origina un deterioro del estado fisico y una reduccion de la funcionalidad. Estos hechos condicionan graves problemas de salud publica por la aparicion de enfermedades degenerativas con el consiguiente coste economico para su tratamiento. Conforme avanza la edad se produce una perdida de fuerza de piernas y fuerza de brazos, un descenso no constante del VO2max y una reduccion progresiva no lineal y especifica por articulacion y movimiento articular de la flexibilidad. Ademas, en personas mayores los frecuentes trastornos de equilibrio alteran el patron de la marcha. Y por ultimo se producen modificaciones sustanciales de la composicion corporal con disminucion de la masa libre de grasa, lo que condiciona un descenso del gasto energetico en reposo y el incremento de la masa grasa.

Regulation of hepatic cholesterogenesis by polar steroids accumulated after cholesterol feeding

The incorporation of mevalonate into nonsaponifiable lipids by chick liverin vivo strongly increased between 1–18 days after hatching. Cholesterol feeding (2%) inhibited this. Synthesis of cholesterol was strongly inhibited, whereas the intermediates isolated by TLC accumulated. Most of the polar nonsaponifiable lipids that accumulated in liver 90 minutes after mevalonate administration to 18-day-old cholesterol-fed chicks were identified as lanosterol derivative. 3-Hydroxy-3-methylglutaryl-CoA reductase activity, as well as acetate and mevalonate incorporation into nonsaponifiable lipids, was inhibited by the presence of these compounds. To our knowledge, this is the first report of such inhibition; this confirms the physiological function of polar steroids in the regulation of cholesterogenesisin vivo.

Mediterranean countries facing the Mediterranean Diet, are we still on track? The example of southern Spain midlife women.

INTRODUCTION AND OBJECTIVES The overall intake of a cohort of middle aged women of Granada was studied along with their body composition, anthropometric and sociodemographic characteristics to evaluate if this population does really follow a Mediterranean Diet. METHODS 206 women aged 53.3 ± 5.5 years old, were evaluated for their body composition, anthropometric and sociodemographic characteristics, dietary patterns, Mediterranean diet score and bone mineral density. Results were additionally analyzed across weight status categories. RESULTS 86% of the sample was overweight or obese and 14% was normal-weight (no woman was underweight). Mean body fat percentage of the sample was 40.3%. Values of bone mineral density showed a t-score average of -1.26 standard deviations. Energy intake decreased as weight status increased (p<0.05), as well as protein intake (p<0.05) but no differences were observed for carbohydrates or fat. Deviations from the Daily Recommended Intakes were observed as well as a moderate adherence (23% of the sample) to the Mediterranean Diet with no significant differences among weight status categories. CONCLUSIONS Results indicated a progressive distancing from the Mediterranean dietary pattern and an unbalanced diet no correlated to the weight status group, so whether these dietary habits along with the unbalanced diet reported are prolonged over time the overweight and obese population will increase as well as the risk of developing chronic diseases, and will finally concur with the high prevalence of cardiovascular and osteoporosis risk over this population.

Age-related changes in the mevalonate metabolism in vivo in chick kidneys

The mevalonate incorporation in vivo into total nonsaponifiable lipids by chick kidneys drastically increased after hatching, reaching similar levels to those previously observed in liver. Cholesterol was the major sterol formed from mevalonate from 11 days onward, while a fraction of polar nonsaponifiable lipid(s) was observed as the major compound(s) synthesized at 5-8 days. Relative percentages of squalene, squalene oxide(s) and lanosterol synthesized from mevalonate also increased between 11-18 days after hatching. Results in this paper demonstrate for the first time the accumulation of a fraction of nonsaponifiable lipid(s) identified as lanosterol derivatives and cholesterol precursors formed by kidneys from [5-14C]mevalonate in experiments carried out in vivo, as well as their evolution during postnatal period.