0000000000178733
AUTHOR
A. Montoro
Valoración del daño miocárdico mediante la medición de la heart-fatty acid-binding protein en cirugía de revascularización coronaria sin circulación extracorpórea. Estudio preliminar
Resumen Introduccion y objetivos del estudio El infarto de miocardio posoperatorio es una complicacion grave y frecuente de la cirugia cardiaca. El diagnostico en este contexto es, en ocasiones, dificil. El objetivo de este estudio es evaluar la cinetica y la precision diagnostica de un nuevo marcador, la heart-type fatty acid-binding protein (h-FABP), en la deteccion precoz de dano miocardico en pacientes sometidos a cirugia de revascularizacion coronaria sin circulacion extracorporea en comparacion con los biomarcadores clasicos. Materiales y metodos Se estudiaron prospectivamente 17 pacientes consecutivos sometidos a cirugia cardiaca de revascularizacion sin circulacion extracorporea. Se…
Concentration-Dependent Protection by Ethanol Extract of Propolis against γ-Ray-Induced Chromosome Damage in Human Blood Lymphocytes
Radioprotection with natural products may be relevant to the mitigation of ionizing radiation-induced damage in mammalian systems; in this sense, propolis extracts have shown effects such as antioxidant, antitumoral, anti-inflammatory, and immunostimulant. We report for the first time a cytogenetic study to evaluate the radioprotective effect,in vitro, of propolis against radiation-induced chromosomal damage. Lymphocytes were cultured with increasing concentrations of ethanol extract of propolis (EEP), including 20, 40, 120, 250, 500, 750, 1000, and 2000 μg mL−1and then exposed to 2 Gyγ-rays. A significant and concentration-dependent decrease is observed in the frequency of chromosome aberr…
Assessment in vitro of cytogenetic and genotoxic effects of propolis on human lymphocytes
We evaluated the genetic damage by ethanolic extract of propolis (EEP) induced to human lymphocytes which were exposed to increasing concentrations (0–2000 μg ml−1). The results indicated that EEP reduced significantly the mitotic index (MI) and proliferation index (PI) when high concentrations of EEP were used. Sister chromatid exchange (SCE) rates indicated that EEP could have genotoxic effects at high concentrations. Exposure of the cells to the amount of ethanol used as solvent did not alter either the MI and cell proliferation kinetics (CPK), or the rate of SCE. The results showed: (a) statistical increase in the percentage the cells with CAs and in the frequency of SCE at the highest …
A RADARSAT-2 Quad-Polarized Time Series for Monitoring Crop and Soil Conditions in Barrax, Spain
An analysis of the sensitivity of synthetic aperture radar (SAR) backscatter (σo) to crop and soil conditions was conducted using 57 RADARSAT-2 C-band quad-polarized SAR images acquired from April to September 2009 for large fields of wheat, barley, oat, corn, onion, and alfalfa in Barrax, Spain. Preliminary results showed that the cross-polarized σHVo was particularly useful for monitoring both crop and soil conditions and was the least sensitive to differences in beam incidence angle. The greatest separability of barley, corn, and onion occurred in spring after the barley had been harvested or in the narrow time window associated with grain crop heading when corn and onion were still imma…
Evaluation of postoperative myocardial injury by heart-type fatty acid-binding protein in off-pump coronary artery bypass grafting surgery
Abstract Background and goal of study Postoperative myocardial infarction is a serious and frequent complication of cardiac surgery. Nonetheless, diagnosis in this context is occasionally challenging. We sought to evaluate the kinetics and diagnostic accuracy of the new biomarker “heart-type fatty acid-binding protein” (h-FABP) in the early detection of myocardial injury in patients undergoing off-pump coronary artery bypass grafting, compared with classical biomarkers. Materials and methods A prospective study was conducted on 17 consecutive patients who underwent off-pump coronary artery bypass grafting during a 2-month period. Blood samples were drawn for measurement of myocardial ischem…