COP1 dynamics integrate conflicting seasonal light and thermal cues in the control of Arabidopsis elongation.

As the summer approaches, plants experience enhanced light inputs and warm temperatures, two environmental cues with an opposite morphogenic impact. Key components of this response are PHYTOCHROME B (phyB), EARLY FLOWERING 3 (ELF3), and CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1). Here, we used single and double mutant/overexpression lines to fit a mathematical model incorporating known interactions of these regulators. The fitted model recapitulates thermal growth of all lines used and correctly predicts thermal behavior of others not used in the fit. While thermal COP1 function is accepted to be independent of diurnal timing, our model shows that it acts at temperature signaling only during daytime. Defective response of cop1-4 mutants is epistatic to phyB-9 and elf3-8, indicating that COP1 activity is essential to transduce phyB and ELF3 thermosensory function. Our thermal model provides a unique toolbox to identify best allelic combinations enhancing climate change resilience of crops adapted to different latitudes.

Formación para el manejo de publicaciones científicas y páginas web en el ámbito sociosanitario / Training for management of scientific publications and webpages in the sociosanitary context

Este trabajo presenta nociones básicas de formación sobre la búsqueda del conocimiento científico sociosanitario en internet, y reitera el uso de contenidos especializados y de rigor en revistas científicas indexadas en JCR y/o SCOPUS. Además, se ofrece una correcta formación digital en Alfabetización en Salud electrónica (e_AeS), a través del manejo de páginas correctamente contrastadas, según los 15 criterios de calidad de los sitios web y de contenidos especializados sociosanitarios(AU)

This paper presents basic notions about training for the search of socio-sanitary scientific knowledge on the Internet and reiterates the use of specialized and rigorous content in scientific journals indexed in JCR and/or SCOPUS. In addition, a correct digital training in electronic health literacy is offered, through the management of correctly contrasted pages, according to the fifteen quality criteria of the websites and specialized socio-health content(AU)

Regulation of COP1 Function by Brassinosteroid Signaling.

Small increases in temperature result in enhanced elongation of the hypocotyl and petioles and hyponastic growth, in an adaptive response directed to the cooling of the leaves and to protect the shoot meristem from the warm soil. This response, collectively termed as thermomorphogenesis, relies on the faster reversion of phyB Pfr at warmer temperatures, which leads to enhanced activity of the basic-helix-loop-helix PHYTOCHROME INTERACTING FACTOR 4 (PIF4). PIF4 acts as a molecular hub integrating light and temperature cues with endogenous hormonal signaling, and drives thermoresponsive growth by directly activating auxin synthesis and signaling genes. Growth promotion by PIF4 depends on brassinosteroid (BR) signaling, as indicated by the impaired thermoresponse of BR-defective mutants and the partial restoration of pifq thermoresponsive defects by brassinolide (BL) application. Also, phyB limits thermomorphogenic elongation through negative regulation of the E3 ubiquitin ligase COP1 that triggers nuclear degradation of multiple photomorphogenesis-promoting factors acting antagonistically to PIF4. COP1 is indeed observed to accumulate in the nucleus in darkness, or in response to warm temperatures, with constitutive photomorphogenic cop1 mutants failing to respond to temperature. Here we explored the role of BR signaling on COP1 function, by growing cop1 seedlings on BL or the inhibitor brassinazole (BRZ), under different light and temperature regimes. We show that weak cop1 alleles exhibit a hyposensitive response to BL. Furthermore, while cop1-6 mutants display as described a wild-type response to temperature in continuous darkness, this response is abolished by BRZ. Application of this inhibitor likewise suppressed temperature-induced COP1 nuclear accumulation in N. benthamiana leaves. Overall these results demonstrate that cop1-6 is not a temperature-conditional allele, but this mutation allows for a partially active protein which unveils a pivotal role of active BR signaling in the control of COP1 activity.

[Home parenteral nutrition: a consensus document of experts from Andalucia and Extremadura]. / Documento de consenso de expertos de Andalucía y Extremadura sobre la nutrición parenteral domiciliaria.

Home parenteral nutrition (HPN) is a technique that has allowed the survival in the community of those patients with serious diseases resulting in an intestinal failure that made their nutrition impossible by other methods. It is indicated if there is a documented intestinal failure (understood by the reduction of the intestinal function to the minimum to the point that intravenous supplementation is required to maintain health and/or growth) with impossibility for oral or enteral exclusive nutrition, provided that there is the possibility of managing the patient at home and that there is no short-term survival expectancy. It requires taking into account the patient's quality of life, family environment and the capacity of the patient and/or their caregivers to be trained for HPN therapy. In low prevalence health topics, as intestinal failure, where the available scientific evidence is of poor quality, consensus documents add value in decision-making. Furthermore, HPN is a complex process and, although there is extensive experience in its application and even clinical practice guidelines, in daily practice there are uncertainties about its suitability, usefulness, rational use and associated costs. For this reason, this document of consensus has been carried out, using the GRADE method. With this document we intend to define our position with regard to the current use of HPN in our country and answer several controversial questions related to this treatment.

La nutrición parenteral en domicilio (NPD) es una técnica que ha permitido la supervivencia en la comunidad de aquellos pacientes con enfermedades graves resultantes en un fallo intestinal que hacía imposible su nutrición por otros métodos. Esta está indicada si existe un fallo intestinal documentado (entendido como la reducción de la función intestinal al mínimo hasta el punto de que se requiere suplementación intravenosa para mantener la salud y/o el crecimiento) con imposibilidad para la nutrición exclusiva por vía oral/enteral, posibilidad de manejo del enfermo en el domicilio y que no exista una expectativa corta de supervivencia, teniendo en cuenta la calidad de vida del paciente, el entorno familiar y la capacidad del paciente y/o de sus cuidadores de entrenamiento para la terapia de NPD.En los problemas de salud poco prevalentes, como es el fallo intestinal, en los cuales la evidencia científica disponible es de baja calidad, los documentos de consenso/expertos aportan valor en la toma de decisiones. Se suma a ello que la NPD es un proceso muy complejo y, a pesar de que existe una amplia experiencia en su aplicación e incluso guías de práctica clínica, en la práctica diaria se plantean incertidumbres acerca de su conveniencia, utilidad, uso racional y costes asociados. Por este motivo se ha realizado este documento de consenso, utilizando el método GRADE, con el que pretendemos definir nuestra posición con respecto al uso actual de la NPD en nuestro país y dar respuesta a una serie de preguntas que generan controversia en relación a este tratamiento.

Spanish home enteral nutrition registry of the year 2014 and 2015 from the NADYA-SENPE Group / Registro del Grupo NADYA-SENPE de nutrición enteral domiciliaria en España, años 2014 y 2015.

Objective: To present the results of the Spanish home enteral nutrition (HEN) registry of the NADYA-SENPE group for the years 2014 and 2015. Methods: From January 1st 2014 to December 31st 2015 the HEN registry was recorded and afterwards a further descriptive and analytical analysis was done. Results: In 2014, 3749 patients were recorded, and 4202 in 2015; prevalence was 80.58 patients/one million inhabitants in Spain in 2014 and 90.51 in 2015. There were 49.9% females in 2014 and 50.3% in 2015. Median age was 73 years (IQI 59-83) in 2014 as well as in 2015. 684 episodes finished in 2014 and 631 in 2015, with death as the main cause, in 54.9% and 50.4%, respectively. The ones who were fed through nasogastric tube had a mean age higher than the ones fed by any other route (p-value < 0.001). Sisty-seven paediatric patients were recorded in 2014 (56.7% females) and 77 in 2015 (55.8% females). Median age at the beginning of HEN among children was 5 months in 2014 and 5 months in 2015. The main route of administration was gastrostomy, in 52.5% in 2014 and nasogastric tube in 50.8% in 2015. 7 episodes finished in 2014 and 13 in 2015, having death as the main cause (57.1% in 2014 and 38.5% in 2015). It was found that were younger children the ones who were mainly fed by nasogastric tubes (p-value 0.004 vs. 0.002). Among paediatric patients as well as adults, the main diagnosis leading to HEN was neurological disease which gives aphagia or severe dysphagia. Conclusions: There has been an increase in the number of patients in the registry as well as the participating centers and the number of patients per center, without any significant change in the characteristics of the patients other than longer duration of the episodes.

Objetivo: exponer los resultados del registro de nutrición enteral domiciliaria (NED) del año 2014 y 2015 del Grupo NADYA-SENPE. Métodos: se recopilaron los pacientes introducidos en el registro desde el 1 de enero al 31 de diciembre de 2014 y la mismas fechas de 2015, y se procedió al análisis descriptivo y analítico de los datos. Resultados: en el año 2014, se registraron 3.749 pacientes y en 2015, 4.202; la prevalencia fue de 80,58 pacientes/millón de habitantes en el año 2014 y de 90,51 en 2015. Por sexos, hubo un 49,9% de mujeres en 2014 y un 50,3% en 2015. La edad media fue de 73 años (IIQ 59-83) en ambos años. Finalizaron 684 episodios de NED en 2014 y 631 en 2015, la causa principal fue el fallecimiento en el 54,9% y 50,4% de los casos, respectivamente. Los portadores de sonda nasogástrica presentan una edad media superior a los pacientes con cualquier otra vía (p < 0,001). Se registraron 67 pacientes pediátricos en 2014 (56,7% niñas) y 77 en 2015 (55,8% niñas). La vía principal de administración fue la gastrostomía en el 52,0% de los casos de 2014 y sonda nasogástrica en el 50,8% de los casos de 2015. La causa principal de finalización de la nutrición fue el fallecimiento (57,1% en 2014 y 38,5% en 2015). Se observó que los niños más pequeños eran los que se alimentaban preferentemente por SNG (p 0,004 vs.0,002).Tanto en pacientes pediátricos como en adultos el diagnóstico principal que motivó la necesidad de NED fue la enfermedad neurológica que cursa con afagia o disfagia severa. Conclusiones: se ha incrementado el número de pacientes del registro, así como el número de centros participantes y el número medio de pacientes comunicados por cada centro respecto a años anteriores, sin que se hayan modificado sustancialmente las características de los pacientes, salvo mayor duración de los episodios.