Metabolomics Highlights Different Life History Strategies of White and Brown Rot Wood-Degrading Fungi.

White and brown rot fungi efficiently deconstruct lignocellulose in wood, Earth's largest pool of aboveground biotic carbon and an important natural resource. Despite its vital importance, little is known about the metabolomic signatures among fungal species and nutritional modes (rot types). In this study, we used GC-MS metabolomics in solid wood substrates (in planta) to compare brown rot fungi (Rhodonia placenta and Gloeophylum trabeum) and white rot fungi (Trametes versicolor and Pleurotus ostreatus) at two decay stages (earlier and later), finding identifiable patterns for brown rot fungi at later decay stages. These patterns occurred in highly reducing environments that were not observed in white rot fungi. Metabolomes measured among the two white rot fungi were notably different, but we found a potential biomarker compound, galactitol, that was characteristic to white rot taxa. In addition, we found that white rot fungi were more efficient at catabolizing phenolic compounds that were originally present in wood. Collectively, white rot fungi were characterized by measured sugar release relative to higher carbohydrate solubilization by brown rot fungi, a distinction in soluble sugar availability that might shape success in the face of "cheater" competitors. This need to protect excess free sugars may explain the differentially high brown rot fungal production of pyranones and furanones, likely linked to an expansion of polyketide synthase genes. IMPORTANCE Despite the ecological and economic importance of wood-degrading fungi, little is known about the array of metabolites that fungi produce during wood decomposition. This study provides an in-depth insight into the wood decomposition process by analyzing and comparing the changes of >100 compounds produced by fungi with metabolic distinct nutritional modes (white and brown rot fungi) at different decay stages. We found a unique pattern of metabolites that correlated well with brown rot (carbohydrate selective mode) in later decay. These compounds were in line with some of the physiochemical and genetic features previously seen in these fungi such as a faster sugar release, lower pH, and the expansion of polyketide-synthase genes compared to white rot fungi (lignin-degrading mode). This study provides spatiotemporally resolved mechanism insights as well as critical groundwork that will be valuable for studies in basic biology and ecology, as well as applied biomass deconstruction and bioremediation.

Adherencia subóptima al tratamiento en la esclerosis múltiple / Adherence to treatment in multiple sclerosis

Objetivo Conocer la adherencia al tratamiento con interferón beta y acetato de glatirámero de pacientes con esclerosis múltiple, así como el porcentaje de discontinuación y sus causas. Método Estudio observacional, longitudinal prospectivo y multicéntrico de ámbito nacional en el que se seleccionaron pacientes con esclerosis múltiple que acudieron a los servicios de farmacia hospitalarios para recoger medicación. La variable principal de valoración fue el porcentaje de adherencia durante un año, medido como la relación entre las dosis de fármaco dispensadas y las necesarias. Secundariamente se midieron las discontinuaciones de tratamiento y sus causas. Resultados Se incluyeron, durante un periodo de seis meses, 543 pacientes en 39 servicios de farmacia. El tiempo medio de exposición a los fármacos durante el estudio fue de 312 días y la adherencia media en ese periodo del 61,5% (IC 95%: 59,4-63,5). De los 543 participantes en el estudio, 34 (6,26%) discontinuaron el tratamiento, en la mayoría de los casos por criterio médico. Conclusiones La adherencia terapéutica durante un año en los pacientes con esclerosis múltiple ha sido inferior a la óptima. Es necesario analizar las causas y establecer medidas correctoras (AU)

Objective To find out if patients with multiple sclerosis adhere to treatment with beta interferons and glatiramer acetate, the percentage of withdrawal and its causes. Methods Observational, longitudinal, prospective, national, multicentre study which selected multiple sclerosis patients who attended the hospital pharmacy department to collect their medication. The main variable was the adherence percentage during a year, measured as the relationship between the dose of the dispensed and necessary drug. Treatment withdrawals and their causes were then measured. Results Over a six-month period, 543 patients from 39 pharmacy departments were included. The average time exposed to the drugs during the study period was 312 days and the average adherence in this period was 61.5% (95% CI: 59.4-63.5). Thirty-four (6.26%) of the 543 study participants withdrew treatment, which for most cases was decided by the doctor. Conclusions Multiple sclerosis patients’ treatment adherence during a period of one year has been lower than the ideal. The causes should therefore be analysed and corrective measures established (AU)

Adherence to treatment in multiple sclerosis.

OBJECTIVE: To find out if patients with multiple sclerosis adhere to treatment with beta interferons and glatiramer acetate, the percentage of withdrawal and its causes. METHODS: Observational, longitudinal, prospective, national, multicentre study which selected multiple sclerosis patients who attended the hospital pharmacy department to collect their medication. The main variable was the adherence percentage during a year, measured as the relationship between the dose of the dispensed and necessary drug. Treatment withdrawals and their causes were then measured. RESULTS: Over a six-month period, 543 patients from 39 pharmacy departments were included. The average time exposed to the drugs during the study period was 312 days and the average adherence in this period was 61.5% (95% CI: 59.4-63.5). Thirty-four (6.26%) of the 543 study participants withdrew treatment, which for most cases was decided by the doctor. CONCLUSIONS: Multiple sclerosis patients' treatment adherence during a period of one year has been lower than the ideal. The causes should therefore be analysed and corrective measures established.

[Evaluation of drug treatment of myocardial infarction in public hospitals of Andalusia. GAUME (Andalusian Group for performance of Studies on Drug Utilization)]. / Evaluación del tratamiento farmacológico del infarto de miocardio en los hospitales públicos de Andalucía. GAUME (Grupo Andaluz para la realización de Estudios de Utilización de Medicamentos).

BACKGROUND: The management of patients with acute myocardial infarction (AMI) has changed over the last decade. The aim of this study was to evaluate the pharmacologic treatment of AMI in the clinical practice, with special emphasis in thrombolytic therapy. MATERIAL AND METHODS: Prospective drug utilization survey, collecting data from 26 hospitals belonging to the Andalusian Health Service, Spain, during one month period. Pharmacologic treatment in the first 24 h was obtained. RESULTS: Out of 379 patients recruited, 52.8% received thrombolytic therapy, although another 19% could have obtained some benefit from that therapy. Alteplase was the most frequently used thrombolytic (65.5%). The regimen prescribed was mainly that followed in GUSTO Study (45.8%) or double bolus (43.5%). In a high percentage of patients the thrombolytic selection was not made according to the results of the literature. Women and patients older than 75 years were less likely to receive thrombolytic therapy. There was a high utilization of aspirin (89.7%), nitrates (84.4%) and heparin (83.6%). CONCLUSIONS: Thrombolytic therapy was prescribed in a higher percentage of patients than is reported in other trials. In spite of that, thrombolytics should have been used in more patients. As alteplase does not have a definitive benefit over streptokinase, protocol is needed when selecting a thrombolytic agent.