Perfil de resistencia de estafilococo coagulasa negativo aislados de muestras de hemocultivos ene el Laboratorio Central de Salud Pública, periodo 2006-2008 / Negative profile of resistance of estafilococo coagulasa isolated of samples of hemocultures ene the Central Laboratory of Public Health, period 2006-2008

Estudio observacional descriptivo de carácter retrospectivo, comprendido en el periodo 2006 al 2008 de todo los hemocultivos procesados en el Laboratorio Central de Salud Pública de Paraguay con aislamiento de Estafilococos Coagulasa-Negativos (ECN). El antibiograma se realizó empleando el método de Kirby-Bauer y siguiendo recomendaciones del Clinical and Laboratory Standards Institute (CLSI)

Effects of Rapid Weight Reduction on Protein Metabolism in Boxing Players / 体力科学

The purpose of the present study is to investigate protein metabolism during rapid weight reduction. Six male boxing players put on a restricted diet of their own accord for two weeks. Body weight changes were observed and a biochemical analysis was made of their urine and blood. The initial body weight of 66.1±3.0kg (mean±SE) decreased to 63.6±3.2 kg after two weeks (P<0.01) . The changes in lean body mass (LBM) by weight reduction were not significant, but the LBM tended to decrease after two weeks. The mean caloric intake was 2, 791±728 kcal before the study and 1, 643±548 kcal after two weeks. The reduction of carbohydrate consumption is much more than that of fat and protein consumption. The 3-Me/Cr in urine increased significantly after two weeks (348.1 ± 37.0 μol/g to 508.1 f 45.6 μmol/g, P<0.01) and the increase of Urea-N/Cr in urine (8.4±0.5mg/mg creatinine to 13.7±1.3mg/mg creatinine, P<0.01) was also significant after two weeks. Urine volume decreased significantly after two weeks (P<0.01) . There was no significant difference in the blood components during the weight reduction period. These results might suggest that rapid weight reduction and massive decrease of carbohydrate intake accelerate protein catabolism.