QuantiFERON-TB reversion in children and adolescents with tuberculosis.

We analyzed 136 children with tuberculosis disease or infection and a positive QuantiFERON-TB (QFT) assay, followed-up for a median of 21 months (0.4-11years). QFT reversed in 16.9% of cases, with significant decreases in TB1 (-1.72 vs. -0.03 IU/ml, p=0.001) and TB2 (-1.65 vs. -0.43 IU/ml, p=0.005) levels compared to non-reverters. We found a higher QFT reversion rate among children under 5 years (25.0% vs 11.9%, p=0.042), and those with TST induration <15mm (29% vs 13.3%, p=0.055). Our data reveal that, although QFT test remained positive in the majority of children, reversion occurred in 16% of cases in a progressive and stable pattern. Younger age and reduced TST induration were associated with QFT reversion.

Understanding a Core Pilin of the Type IVa Pili of Acidithiobacillus thiooxidans, PilV.

Pilins are protein subunits of pili. The pilins of type IV pili (T4P) in pathogenic bacteria are well characterized, but anything is known about the T4P proteins in acidophilic chemolithoautotrophic microorganisms such as the genus Acidithiobacillus. The interest in T4P of A. thiooxidans is because of their possible role in cell recruitment and bacterial aggregation on the surface of minerals during biooxidation of sulfide minerals. In this study we present a successful ad hoc methodology for the heterologous expression and purification of extracellular proteins such as the minor pilin PilV of the T4P of A. thiooxidans, a pilin exposed to extreme conditions of acidity and high oxidation-reduction potentials, and that interact with metal sulfides in an environment rich in dissolved minerals. Once obtained, the model structure of A. thiooxidans PilV revealed the core basic architecture of T4P pilins. Because of the acidophilic condition, we carried out in silico characterization of the protonation status of acidic and basic residues of PilV in order to calculate the ionization state at specific pH values and evaluated their pH stability. Further biophysical characterization was done using UV-visible and fluorescence spectroscopy and the results showed that PilV remains soluble and stable even after exposure to significant changes of pH. PilV has a unique amino acid composition that exhibits acid stability, with significant biotechnology implications such as biooxidation of sulfide minerals. The biophysics profiles of PilV open new paradigms about resilient proteins and stimulate the study of other pilins from extremophiles.

Identifying adaptations for a mindfulness program for Spanish-speaking mothers of children with chronic conditions or disabilities.

Mothers of children with chronic conditions or disabilities have benefited from mindfulness programs, yet culturally relevant mindfulness programs for Spanish-speaking mothers are lacking. We aimed to explore how this population experienced a peer-led mindfulness program to inform adaptations. Sixteen mothers attended a 6-week program and completed semi-structured interviews. Using a realist evaluation framework, we explored relationships between participants' context, the program's mechanisms and outcomes. Our thematic analysis found that four contextual factors-faith, self-concept as a woman and mother, trauma, and level of social support-influenced how participants experienced the mechanisms. Mechanisms included having positive experiences when trying practices, engaging in self-reflection, and sharing life experiences and learning in community. The mechanisms led to four outcomes: emotion regulation, savoring daily life experiences, empowerment to practice self-care and common humanity. Faith was an important enabling factor because participants had positive experiences when integrating their faith with program content. Future research should examine adaptations that invite participants to explore this synergy. Self-reflection should also be emphasized because it increased motivation to use practices and helped address barriers to engagement. Because the four contextual factors apply to many Spanish-speaking immigrants, these adaptations could enhance mindfulness programs for this population more broadly.

Disorder and amino acid composition in proteins: their potential role in the adaptation of extracellular pilins to the acidic media, where Acidithiobacillus thiooxidans grows.

There are few biophysical studies or structural characterizations of the type IV pilin system of extremophile bacteria, such as the acidophilic Acidithiobacillus thiooxidans. We set out to analyze their pili-comprising proteins, pilins, because these extracellular proteins are in constant interaction with protons of the acidic medium in which At. thiooxidans grows. We used the web server Operon Mapper to analyze and identify the cluster codified by the minor pilin of At. thiooxidans. In addition, we carried an in-silico characterization of such pilins using the VL-XT algorithm of PONDR® server. Our results showed that structural disorder prevails more in pilins of At. thiooxidans than in non-acidophilic bacteria. Further computational characterization showed that the pilins of At. thiooxidans are significantly enriched in hydroxy (serine and threonine) and amide (glutamine and asparagine) residues, and significantly reduced in charged residues (aspartic acid, glutamic acid, arginine and lysine). Similar results were obtained when comparing pilins from other Acidithiobacillus and other acidophilic bacteria from another genus versus neutrophilic bacteria, suggesting that these properties are intrinsic to pilins from acidic environments, most likely by maintaining solubility and stability in harsh conditions. These results give guidelines for the application of extracellular proteins of acidophiles in protein engineering.

Frecuencia de mordida abierta en niños de 6 a 12 años en escuelas públicas de Gran Asunción en el año 2019

La mordida abierta se define como aquella situación de la oclusión en la que uno o más dientes superiores o inferiores, no alcanzan el plano de la oclusión por no hacer contacto con los antagonistas. El objetivo fue determinar la frecuencia de mordida abierta en niños entre 6 a 12 años de escuelas públicas de Gran Asunción. Estudio descriptivo observacional, de corte transversal que abarcó 1095 niños de ambos sexos, de 6 a 12 años, de escuelas públicas de Gran Asunción- Paraguay en el 2019 que cumplían con los criterios de inclusión. Se realizaron evaluaciones odontológicas para determinar por medio de observación la presencia de mordida abierta y los datos fueron asentados en planillas Excel para su posterior análisis. Del total de 1095 alumnos, 242 presentan mordida abierta (22,1%). El 57,8% presentó mordida abierta anterior, el 35,5% presenta mordida abierta posterior y un 6.6% mordida abierta completa. Los datos que aporta esta investigación contribuyen para implementar y promover tratamientos a edades tempranas, lo que es de vital importancia por las múltiples consecuencias negativas de este tipo de maloclusiones en el niño, debido a que no sólo afecta a la boca, sino también a la funcionalidad de todo el sistema en el cuerpo humano.

Open bite is defined as that occlusion situation in which one or more upper or lower teeth do not reach the occlusion plane because they do not make contact with the antagonists. The objective was to determine the frequency of open bite in children between 6 and 12 years of public schools in Great Asunción. Descriptive observational, cross-sectional study that included 1095 boys and girls from 6 to 12 years old, from public schools in Greater Asunción-Paraguay in 2019 who met the inclusion criteria. Dental evaluations were carried out to determine the presence of open bite by observation and the data was recorded in Excel spreadsheets for later analysis. Of the total of 1095 students, 242 presented open bite (22.1%), 57.8% presented anterior open bite, 35.5% presented posterior open bite and 6.6% complete open bite. The data provided by this research contribute to implement and promote treatments at an early age, which is of vital importance due to the multiple negative consequences of this type of malocclusion in children, because it not only affects the mouth, but also the functionality of the entire system in the human body.

Guía de administración de antineoplásicos orales en pacientes con trastornos de la deglución / A guide for the administration of oral antineoplastic in patients with swallowing disorders

Objetivo: Revisar la literatura disponible sobre la administración de antineoplásicos orales en pacientes con trastornos de la deglución y realizaruna síntesis de la información hallada.Método: En el periodo septiembre 2019-junio 2020, tres farmacéuticoshospitalarios elaboraron una lista con los antineoplásicos orales disponibles en España, la cual fue repartida, y cada cual llevó a cabo labúsqueda y revisión bibliográfica de los medicamentos asignados. Serevisaron las fichas técnicas y así como Pubmed, Micromedex, Uptodate,la página web del Cancer Care Ontario, diferentes boletines farmacéuticos, guías de administración por sonda y otras fuentes terciarias deinformación. En último lugar, se contactó con la industria farmacéutica.Posteriormente cada uno sintetizó la información que había hallado ypara concluir, un médico y un cuarto farmacéutico hospitalario revisarontodo el trabajo llevado a cabo.Resultados: Se revisaron un total de 64 fármacos antineoplásicos orales.Se obtuvo información pertinente en el caso de 48, de los cuales 44 presentaban posibilidad de administración en estos pacientes (un 69% de losfármacos investigados). Se realizó una síntesis de la información hallada.Conclusiones: Pese a haber encontrado posibles métodos de preparación y administración para la mayoría de los antineoplásicos orales revisados, se constata que la información es más bien escasa y con bajo nivelde evidencia. Es necesario seguir investigando en este campo, ya que seprecisan formas farmacéuticas líquidas, o preparaciones extemporáneas,que en base a estudios farmacocinéticos y de estabilidad permitan la administración de antineoplásicos orales en este grupo de pacientes. (AU)

Objective: To review the available literature on the administration of oralantineoplastic drugs in patients with swallowing disorders and systematizethe information obtained.Method: Between September 2019 and April 2020, two hospital pharmacists drew up a list of the oral antineoplastic drugs available in Spain,which was then distributed to three hospital pharmacists, each of whomcarried out a literature search and a review. An analysis was made ofthe prescribing information and searches were performed in Pubmed,Micromedex, Uptodate, the Cancer Care Ontario website, different pharmaceutical bulletins, feeding tube administration guidelines, and tertiaryinformation sources. Lastly, the pharmaceutical industry was contacted.The group systematized the information obtained, after which a fourthhospital pharmacist and an independent physician reviewed the workcarried out.Results: A total of 64 oral antineoplastic drugs were reviewed. Relevantinformation was obtained for 48 drugs, of which 44 were amenable toadministration to these patients (69% of the investigated drugs). A systematization of the information found was carried out.Conclusions: Despite having found different methods for preparing andadministering most of the oral antineoplastic drugs reviewed, the information compiled was rather scarce and with a low level of evidence. Further studies, based on pharmacokinetic and stability studies, are necessary inthis field as there is a sore need for oral liquid pharmaceutical forms orextemporaneous preparations allowing administration of oral antineoplastic drugs to these patients. (AU)

A guide for the administration of oral antineoplastic in patients with swallowing disorders.

OBJECTIVE: To review the available literature on the administration of oral antineoplastic drugs in patients with swallowing disorders and  ystematize the information obtained. METHOD: Between September 2019 and April 2020, two hospital  harmacists drew up a list of the oral antineoplastic drugs available in  Spain, which was then distributed to three hospital pharmacists, each of  whom carried out a literature search and a review. An analysis was made  of the prescribing information and searches were performed in Pubmed, Micromedex, Uptodate, the Cancer Care Ontario website,  different pharmaceutical bulletins, feeding tube administration guidelines,  and tertiary information sources. Lastly, the pharmaceutical industry was  contacted. The group systematized the information obtained, after which a fourth hospital pharmacist and an independent physician reviewed the  work carried out. RESULTS: A total of 64 oral antineoplastic drugs were reviewed. Relevant information was obtained for 48 drugs, of which 44 were  amenable to administration to these patients (69% of the investigated  drugs). A systematization of the information found was carried out. Conclusions: Despite having found different methods for preparing and administering most of the oral antineoplastic drugs reviewed, the  information compiled was rather scarce and with a low level of evidence.  Further studies, based on pharmacokinetic and stability studies, are  necessary in this field as there is a sore need for oral liquid pharmaceutical forms or extemporaneous preparations allowing administration of oral  antineoplastic drugs to these patients.

Objetivo: Revisar la literatura disponible sobre la administración de  antineoplásicos orales en pacientes con trastornos de la deglución y  realizar una síntesis de la información hallada.Método: En el periodo septiembre 2019-junio 2020, tres farmacéuticos hospitalarios elaboraron una lista con los antineoplásicos  orales disponibles en España, la cual fue repartida, y cada cual llevó a  cabo la búsqueda y revisión bibliográfica de los medicamentos asignados.  Se revisaron las fichas técnicas y así como Pubmed, Micromedex,  Uptodate, la página web del Cancer Care Ontario, diferentes boletines  farmacéuticos, guías de administración por sonda y otras fuentes terciarias de información. En último lugar, se contactó con la industria farmacéutica. Posteriormente cada uno sintetizó la información que había  hallado y para concluir, un médico y un cuarto farmacéutico hospitalario  revisaron todo el trabajo llevado a cabo.Resultados: Se revisaron un total de 64 fármacos antineoplásicos orales. Se obtuvo información pertinente en el caso de 48, de los cuales 44  presentaban posibilidad de administración en estos pacientes (un 69% de  los fármacos investigados). Se realizó una síntesis de la información  hallada.Conclusiones: Pese a haber encontrado posibles métodos de preparación y administración para la mayoría de los antineoplásicos orales  revisados, se constata que la información es más bien escasa y con bajo  nivel  de evidencia. Es necesario seguir investigando en este campo, ya  que se precisan formas farmacéuticas líquidas, o preparaciones  extemporáneas, que en base a estudios farmacocinéticos y de estabilidad  permitan la administración de antineoplásicos orales en este grupo de  pacientes.

Tratamiento de recesiones gingivales unitarias y múltiples en la zona anterior mandibular mediante técnica de Edlan-Mejchar modificado. Descripción de la técnica quirúrgica y resultados / Treatment of isolated and multiple gingival recessions in the anterior mandibular area using a modified Edlan-Mejchar technique. Description of the surgical technique and results

El tratamiento de recesiones gingivales utilizando procedimientos de cirugía plástica periodontal es habitualmente requerido en la odontología moderna. El objetivo final de estos procedimientos es la cobertura completa de la raíz y los resultados estéticos agradables. La literatura muestra que el colgajo de avance coronal + injerto de tejido conectivo podría ser considerado como el "gold standard" para el tratamiento de recesiones gingivales unitarias. Sin embargo, en la arcada inferior podemos encontrarnos con limitaciones anatómicas que nos impidan realizar las técnicas convencionales de cirugía mucogingival. En este trabajo se presenta y describe el tratamiento de recesiones gingivales unitarias y múltiples que afectan a la zona anteroinferior, las cuales se trataron mediante la técnica de Edlan-Mejchar modificada. La utilización de la técnica de Edlan-Mejchar modificada muestra resultados positivos para tratar recesiones gingivales en el sector anteroinferior

Treatment of gingival recessions using periodontal plastic surgery procedures is routinely required in modern dentistry. The ultimate goal of these procedures is complete root coverage and pleasing aesthetic results. The literature shows that the coronal advancement flap + connective tissue graft could be considered as the "gold standard" for the treatment of single gingival recessions. However, in the lower arch we can find anatomical limitations that prevent us from performing conventional mucogingival surgery techniques. In this work we present and describe the treatment of single and multiple gingival recessions that affect the lower anterior zone, which were treated using the modified Edlan-Mejchar technique. The use of the modified Edlan-Mejchar technique shows positive results to treat gingival recessions in the mandibular anterior area

Biosynthesis of polyhydroxyalkanoates from vegetable oil under the co-expression of fadE and phaJ genes in Cupriavidus necator.

The acyl-CoA dehydrogenase (FadE) and (R)-specific enoyl-CoA hydratase (PhaJ) are functionally related to the degradation of fatty acids and the synthesis of polyhydroxyalkanoates (PHAs). To verify this, a recombinant Cupriavidus necator H16 harboring the plasmid -pMPJAS03- with fadE from Escherichia coli strain K12 and phaJ1 from Pseudomonas putida strain KT2440 under the arabinose promoter (araC-PBAD) was constructed. The impact of co-expressing fadE and phaJ genes on C. necator H16/pMPJAS03 maintaining the wild-type synthase on short-chain-length/medium-chain-length PHA formation from canola or avocado oil at different arabinose concentrations was investigated. The functional activity of fadEE.c led to obtaining higher biomass and PHA concentrations compared to the cultures without expressing the gene. While high transcriptional levels of phaJ1P.p, at 0.1% of arabinose, aid the wild-type synthase to polymerize larger-side chain monomers, such as 3-Hydroxyoctanoate (3HO) and 3-Hydroxydecanoate (3HD). The presence of even small amounts of 3HO and 3HD in the co-polymers significantly depresses the melting temperature of the polymers, compared to those composed of pure 3-hydroxybutyrate (3HB). Our data presents supporting evidence that the synthesis of larger-side chain monomers by the recombinant strain relies not only upon the affinity of the wild-type synthase but also on the functionality of the intermediate supplying enzymes.

[HOSPITALS AS PROMOTERS OF SMOKELESS SPACES: STRATEGIES AIMED AT SMOKING CONTROL] / El hospital como centro promotor de espacios sin humo: estrategias dirigidas al control del tabaquismo.

The objective of this study was to describe the measures introduced at the Hospital Germans Trias i Pujol, Barcelona, aimed at achieving a smoke-free environment, and encouraging research, training, and clinical approaches with respect to smoking. The experience gained as a center attached to the Catalan Network of Smokeless Hospitals since 2002 shows that preventing and controlling smoking requires a specific agenda developed by a competent committee comprising workers from all hospital areas. Likewise, coordination with other centers in the network is essential as it permits the sharing of experiences. The involvement of hospital management is critical for the effective introduction of health protection and promotion strategies, both in workers and in users. The raising of awareness and the ongoing training of all health workers and coordination with other health care providers in the Health network are the main aspects that require strengthening in the future.

El objetivo de este trabajo fue describir las medidas llevadas a cabo en el Hospital Germans Trias i Pujol de Barcelona, destinadas a conseguir un entorno libre de humo, así como al desarrollo de actividades de investigación, formación y abordaje clínico en relación al tabaquismo. La experiencia como centro adherido a la Red Catalana de Hospitales Sin Humo desde 2002 nos revela que para la prevención y control del tabaquismo es necesaria una agenda específica desarrollada por un Comité competente, compuesto por trabajadores de diferentes estamentos y servicios del centro. Del mismo modo, consideramos fundamental la coordinación con otros centros de la Red que permita compartir experiencias, así como la implicación de la Dirección del Centro para la implementación efectiva de las estrategias de promoción y protección de la salud, tanto en los trabajadores como en los usuarios. La sensibilización y formación continuada de todo el personal sanitario y la coordinación con otros servicios proveedores de salud de la red sanitaria se perfilan como los principales puntos a reforzar en el futuro.

Estudio de calidad de vida en pacientes asintomáticos con hepatitis C / No disponible

OBJETIVO Y MÉTODOS: estudio observacional, longitudinal, prospectivo en el que se evaluaron los cambios en la percepción de calidad de vida en pacientes asintomáticos con hepatitis C tratados con antivirales de acción directa. RESULTADOS: los cuestionarios SF-36 y EQ-5D-5L realizados sobre 86 pacientes tratados y 12 pacientes control demostraron mejoría de varios parámetros (función física, dolor corporal, salud general, vitalidad y función social), sobre todo cuando se compara la percepción antes del tratamiento y tras finalizar el seguimiento después de la curación. CONCLUSIÓN: estos datos apoyan la hipótesis de que el virus de la hepatitis C puede causar empeoramiento en la calidad de vida de los pacientes asintomáticos

No disponible

Pacientes con hepatitis C perdidos en el sistema: aspectos éticos-legales y resultados de su búsqueda / No disponible

INTRODUCCIÓN: se conoce la existencia de pacientes con hepatitis C perdidos en el sistema, pero se desconocen su prevalencia y características. Además, su identificación colisiona con la barrera de la protección de datos. MÉTODOS: se presentó un protocolo de identificación y contacto al Comité de Ética Asistencial. Se obtendrían las serologías anti-VHC+ de Microbiología entre 2010-18. Se analizaría su situación en la base de datos hospitalaria y regional. Se clasificarían: a) hepatitis C crónica, si última determinación de ARN-VHC+; b) hepatitis C curada, si última determinación de ARN-VHC- tras 12 semanas de tratamiento; c) hepatitis C posible, si anti-VHC+ sin determinación de ARN-VHC. Se considerarían perdidos aquellos con hepatitis C crónica o posible sin seguimiento en Digestivo o Medicina Interna. Se contactaría con ellos mediante correo postal y, posteriormente, por teléfono para ofrecerles tratamiento. RESULTADOS: el Comité de Ética consideró que el protocolo cumplía los principios bioéticos de autonomía, beneficencia, no maleficencia y justicia, y que el contacto era éticamente deseable. Sobre 4.816 serologías anti-VHC+ identificamos 677 pacientes perdidos (14,06 %; IC 95 %: 13,2-15,2): edad 54 años, 61 % hombres, 12 % extranjeros y 95 % monoinfectados. Se consumieron 1,3 minutos en el estudio de cada serología. Un 25 % de las perdidas habían sido solicitadas por Digestivo o Medicina Interna. De los 677 perdidos, 228 (33,7 %) tenían también ARN-VHC+ y 449 (66,3 %) solo tenían solicitada la serología. CONCLUSIÓN: un número importante de pacientes con hepatitis C se encuentran perdidos en el sistema. Su búsqueda y contacto es posible desde el punto de vista ético-legal

No disponible

Patients with hepatitis C lost to follow-up: ethical-legal aspects and search results.

INTRODUCTION: data on the prevalence and characteristics of hepatitis C patients lost to follow-up are lacking. In addition, the identification of this population clashes with data protection regulations. METHODS: the identification and contact protocol was submitted to the Health Care Ethics Committee. The protocol was based on anti-HCV serology test results for 2010-2018, which were obtained from the Microbiology Department. In addition, the situation of the patients in the hospital and regional database was analyzed, based on the following classification: a) chronic hepatitis C, if the last HCV RNA determination was positive; b) cured hepatitis C, if the last HCV RNA determination was negative after 12 weeks of treatment; and c) possible hepatitis C, if anti-HCV antibodies were positive with no result for HCV RNA. Lost patients were defined as those with chronic or possible hepatitis C and no follow-up in the Digestive Diseases or Internal Medicine Departments. The patients were contacted by postal mail and then by telephone, so that they could be offered treatment. RESULTS: the Ethics Committee considered that the protocol fulfilled the bioethical principles of autonomy, beneficence, non-maleficence and justice and that contact was ethically desirable. From 4,816 positive anti-HCV serology results, 677 patients were identified who were lost to follow-up (14.06 %; 95 % CI, 13.2-15.2). The mean age was 54 years, 61 % were male, 12 % were foreign born and 95 % were mono-infected. The study of each serology result took 1.3 minutes. One-quarter (25 %) of the losses corresponded to the Digestive Diseases and Internal Medicine Departments. Of the 677 losses, serology testing had only been ordered for 449 patients (66.3 %) and the remaining 228 (33.7 %) also had a positive HCV RNA result. CONCLUSION: a large number of patients with hepatitis C are lost to follow-up. Searching for and contacting these patients is legally and ethically viable.

Inhibition of Kv10.1 Channels Sensitizes Mitochondria of Cancer Cells to Antimetabolic Agents.

Reprogramming of energy metabolism constitutes one of the hallmarks of cancer and is, therefore, an emerging therapeutic target. We describe here that the potassium channel Kv10.1, which is frequently overexpressed in primary and metastatic cancer, and has been proposed a therapeutic target, participates in metabolic adaptation of cancer cells through regulation of mitochondrial dynamics. We used biochemical and cell biological techniques, live cell imaging and high-resolution microscopy, among other approaches, to study the impact of Kv10.1 on the regulation of mitochondrial stability. Inhibition of Kv10.1 expression or function led to mitochondrial fragmentation, increase in reactive oxygen species and increased autophagy. Cells with endogenous overexpression of Kv10.1 were also more sensitive to mitochondrial metabolism inhibitors than cells with low expression, indicating that they are more dependent on mitochondrial function. Consistently, a combined therapy using functional monoclonal antibodies for Kv10.1 and mitochondrial metabolism inhibitors resulted in enhanced efficacy of the inhibitors. Our data reveal a new mechanism regulated by Kv10.1 in cancer and a novel strategy to overcome drug resistance in cancers with a high expression of Kv10.1.

Quality of life study in asymptomatic patients with hepatitis C.

OBJECTIVE AND METHODS: an observational, longitudinal, prospective study was performed to assess changes in perceived quality of life in asymptomatic patients with hepatitis C under treatment with direct-acting antivirals. Questionnaires SF-36 and EQ-5D-5L were administered to 86 treated patients and 12 controls. RESULTS: there were improvements in several parameters such as physical functioning, bodily pain, general health, vitality and social functioning, particularly when the perceptions were compared before treatment and after treatment completion and following recovery. CONCLUSION: these data support the hypothesis that the hepatitis C virus may worsen quality of life in asymptomatic patients.

El hospital como centro promotor de espacios sin humo: estrategias dirigidas al control del tabaquismo / Hospitals as promoters of smokeless spaces: strategies aimed at smoking control

El objetivo de este trabajo fue describir las medidas llevadas a cabo en el Hospital Germans Trias I Pujol de Barcelona, destinadas a conseguir un entorno libre de humo, así como al desarrollo de actividades de investigación, formación y abordaje clínico en relación al tabaquismo. La experiencia como centro adherido a la Red Catalana de Hospitales Sin Humo desde 2002 nos revela que para la prevención y control del tabaquismo es necesaria una agenda específica desarrollada por un Comité competente, compuesto por trabajadores de diferentes estamentos y servicios del centro. Del mismo modo, consideramos fundamental la coordinación con otros centros de la Red que permita compartir experiencias, así como la implicación de la Dirección del Centro para la implementación efectiva de las estrategias de promoción y protección de la salud, tanto en los trabajadores como en los usuarios. La sensibilización y formación continuada de todo el personal sanitario y la coordinación con otros servicios proveedores de salud de la red sanitaria se perfilan como los principales puntos a reforzar en el futuro

The objective of this study was to describe the measures introduced at the Hospital Germans Trias I Pujol, Barcelona, aimed at achieving a smoke-free environment, and encouraging research, training, and clinical approaches with respect to smoking. The experience gained as a center attached to the Catalan Network of Smokeless Hospitals since 2002 shows that preventing and controlling smoking requires a specific agenda developed by a competent committee comprising workers from all hospital areas. Likewise, coordination with other centers in the network is essential as it permits the sharing of experiences. The involvement of hospital management is critical for the effective introduction of health protection and promotion strategies, both in workers and in users. The raising of awareness and the ongoing training of all health workers and coordination with other health care providers in the health network are the main aspects that require strengthening in the future

Análogos de prostaglandinas I2 (epoprostenol y treprostinil) para el tratamiento de la hipertensión pulmonar refractaria secundaria a displasia broncopulmonar en un lactante / Prostaglandin 12 analogs (epoprostenol and treprostinil) as a treatment for refractory bronchopulmonary dysplasia-induced pulmonary hypertension in an infant

La hipertensión pulmonar es una complicación frecuente de la displasia broncopulmonar. A pesar de su alta incidencia, existen pocos tratamientos disponibles. El epoprostenol y el treprostinil son análogos de las prostaglandinas I2, que activan la adenilato ciclasa e incrementan el adenosín monofosfato cíclico en las células de la musculatura lisa de la arteria pulmonar y pueden resultar eficaces en el tratamiento de estos pacientes. Se presenta el caso de un prematuro de extremado bajo peso con hipertensión pulmonar secundaria a displasia broncopulmonar grave, no respondedora a óxido nítrico inhalado y sildenafilo, que fue tratado con análogos de prostaglandinas I2. En nuestro paciente, este tratamiento evidenció mejoría clínica y ecocardiográfica significativa tras varias semanas de tratamiento.

Pulmonary hypertension is a common complication of bronchopulmonary dysplasia, with a high mortality rate. Despite the high incidence of pulmonary hypertension, there are few available treatments. Epoprostenol and treprostinil are prostaglandin I2 analogs that activate adenylate cyclase and increase cyclic adenosine monophosphate in the pulmonary arterial smooth muscle cells. Therefore, they may be an effective treatment for these patients. We report the use of prostaglandin I2 analogs in an extremely low birth weight preterm baby with severe bronchopulmonary dysplasia associated with pulmonary hypertension non-responding to inhaled nitric oxide and sildenafil. In our patient this treatment resulted in remarkable clinical and echocardiographic improvement, evident after a few weeks of treatment.

[Prostaglandin 12 analogs (epoprostenol and treprostinil) as a treatment for refractory bronchopulmonary dysplasia-induced pulmonary hypertension in an infant]. / Análogos de prostaglandinas I2 (epoprostenol y treprostinil) para el tratamiento de la hipertensión pulmonar refractaria secundaria a displasia broncopulmonar en un lactante.

Pulmonary hypertension is a common complication of bronchopulmonary dysplasia, with a high mortality rate. Despite the high incidence of pulmonary hypertension, there are few available treatments. Epoprostenol and treprostinil are prostaglandin I2 analogs that activate adenylate cyclase and increase cyclic adenosine monophosphate in the pulmonary arterial smooth muscle cells. Therefore, they may be an effective treatment for these patients. We report the use of prostaglandin I2 analogs in an extremely low birth weight preterm baby with severe bronchopulmonary dysplasia associated with pulmonary hypertension non-responding to inhaled nitric oxide and sildenafil. In our patient this treatment resulted in remarkable clinical and echocardiographic improvement, evident after a few weeks of treatment.

La hipertensión pulmonar es una complicación frecuente de la displasia broncopulmonar. A pesar de su alta incidencia, existen pocos tratamientos disponibles. El epoprostenol y el treprostinil son análogos de las prostaglandinas I2, que activan la adenilato ciclasa e incrementan el adenosín monofosfato cíclico en las células de la musculatura lisa de la arteria pulmonar y pueden resultar eficaces en el tratamiento de estos pacientes. Se presenta el caso de un prematuro de extremado bajo peso con hipertensión pulmonar secundaria a displasia broncopulmonar grave, no respondedora a óxido nítrico inhalado y sildenafilo, que fue tratado con análogos de prostaglandinas I2. En nuestro paciente, este tratamiento evidenció mejoría clínica y ecocardiográfica significativa tras varias semanas de tratamiento.

Sequence analysis and confirmation of the type IV pili-associated proteins PilY1, PilW and PilV in Acidithiobacillus thiooxidans.

Acidithiobacillus thiooxidans is an acidophilic chemolithoautotrophic bacterium widely used in the mining industry due to its metabolic sulfur-oxidizing capability. The biooxidation of sulfide minerals is enhanced through the attachment of At. thiooxidans cells to the mineral surface. The Type IV pili (TfP) of At. thiooxidans may play an important role in the bacteria attachment since TfP play a key adhesive role in the attachment and colonization of different surfaces. In this work, we report for the first time the mRNA sequence of three TfP proteins from At. thiooxidans, the adhesin protein PilY1 and the TfP pilins PilW and PilV. The nucleotide sequences of these TfP proteins show changes in some nucleotide positions with respect to the corresponding annotated sequences. The bioinformatic analyses and 3D-modeling of protein structures sustain their classification as TfP proteins, as structural homologs of the corresponding proteins of Ps. aeruginosa, results that sustain the role of PilY1, PilW and PilV in pili assembly. Also, that PilY1 comprises the conserved Neisseria-PilC (superfamily) domain of the tip-associated adhesin, while PilW of the superfamily of putative TfP assembly proteins and PilV belongs to the superfamily of TfP assembly protein. In addition, the analyses suggested the presence of specific functional domains involved in adhesion, energy transduction and signaling functions. The phylogenetic analysis indicated that the PilY1 of Acidithiobacillus genus forms a cohesive group linked with iron- and/or sulfur-oxidizing microorganisms from acid mine drainage or mine tailings.

Tratamiento de multiples recesiones en el sector estético mediante el empleo de la técnica bilaminar: descripción de la técnica quirúrgica y resultados / Treatment of multiple recessions in the aesthetic sector through the use of the bilaminar technique: description of the surgical technique and results

La recesión gingival, definida como la denudación parcial radicular por el desplazamiento apical del margen gingival involucra al hueso alveolar vestibular y a la encía libre situada sobre él. Las recesiones gingivales fueron clasificadas por Miller según el pronóstico para el recubrimiento radicular. Se han propuesto diferentes procedimientos quirúrgicos y diseños de colgajos para el tratamiento de recesiones múltiples en área estética. En este trabajo se presentan y describen el tratamiento de múltiples recesiones gingivales adyacentes que afectan a la zona estética, las cuales se trataron mediante la técnica bilaminar de injerto de tejido conectivo y derivados de la matriz del esmalte en combinación con un colgajo de reposición coronal. La utilización de la técnica bilaminar dio lugar a un recubrimiento radicular satisfactorio en el tratamiento de múltiples recesiones gingivales

Gingival recession, defined as partial radicular denudation by the apical displacement of the gingival margin, involves the vestibular alveolar bone and the free gingiva located above it. Gingival recessions were classified by Miller as the prognosis for root coverage. Different surgical procedures and flap designs have been proposed for the treatment of multiple recessions in the aesthetic area. This paper presents and describes the treatment of multiple adjacent gingival recession affecting the aesthetic zone, which were treated by bilaminar technique connective tissue graft and enamel matrix derivatives in combination with a coronally advanced flap. The use of bilaminar technique resulted in a satisfactory root coverage in treating multiple gingival recession