Estimulantes espermáticos en la inseminación artificial porcina = Sperm stimulants in swine artificial insemination

P. 22-33Los estimulantes espermáticos, conocidos también como potenciadores o aditivos seminales, son un grupo de sustancias, clasificadas en cuatro categorías ( estimulantes de la motilidad espermática, hormonas, enzimas y otras diversas), que añadidas al semen en el momento previo a la inseminación de las hembras mejoran la fertilidad y/o la prolificidad. En el presente artículo expondremos nuestras últimas investigaciones sobre un estimulante espermático porcino (EEP), de tipo "combinado", aplicable a la optimación de los resultados de la inseminación artificial porcina (IAP).S

Esophageal and Gastric Malignancies After Bariatric Surgery: a Retrospective Global Study

Background: Bariatric surgery can influence the presentation, diagnosis, and management of gastrointestinal cancers. Esophagogastric (EG) malignancies in patients who have had a prior bariatric procedure have not been fully characterized. Objective: To characterize EG malignancies after bariatric procedures. Setting: University Hospital, United Kingdom. Methods: We performed a retrospective, multicenter observational study of patients with EG malignancies after bariatric surgery to characterize this condition. Results: This study includes 170 patients from 75 centers in 25 countries who underwent bariatric procedures between 1985 and 2020. At the time of the bariatric procedure, the mean age was 50.2 ± 10 years, and the mean weight 128.8 ± 28.9 kg. Women composed 57.3% (n = 98) of the population. Most (n = 64) patients underwent a Roux-en-Y gastric bypass (RYGB) followed by adjustable gastric band (AGB; n = 46) and sleeve gastrectomy (SG; n = 43). Time to cancer diagnosis after bariatric surgery was 9.5 ± 7.4 years, and mean weight at diagnosis was 87.4 ± 21.9 kg. The time lag was 5.9 ± 4.1 years after SG compared to 9.4 ± 7.1 years after RYGB and 10.5 ± 5.7 years after AGB. One third of patients presented with metastatic disease. The majority of tumors were adenocarcinoma (82.9%). Approximately 1 in 5 patients underwent palliative treatment from the outset. Time from diagnosis to mortality was under 1 year for most patients who died over the intervening period. Conclusion: The Oesophago-Gastric Malignancies After Obesity/Bariatric Surgery study presents the largest series to date of patients developing EG malignancies after bariatric surgery and attempts to characterize this condition.info:eu-repo/semantics/publishedVersio

A922 Sequential measurement of 1 hour creatinine clearance (1-CRCL) in critically ill patients at risk of acute kidney injury (AKI)

Meeting abstrac

re-habitar El Carmen : Un proyecto sobre patrimonio contemporáneo

El proyecto _re-HABITAR suponía para el propio proceder de la institución un avance más allá del reconocimiento, registro, inventario o protección patrimonial de la arquitectura del siglo XX y del Movimiento Moderno para posicionarse en la acción preventiva y conservativa de ese legado contemporáneo. Para ello, la praxis patrimonial se aferraba a un modelo: el de la vivienda social en España en la segunda mitad del siglo XX; a un caso concreto: el de la barriada de Nuestra Señora del Carmen (Recasens Méndez-Queipo de Llano, 1958); y a un requisito fundamental: analizar un objeto vivo y en uso, aún con la presencia de quienes lo vivieron y usaron desde su origen

Geobacter Dominates the Inner Layers of a Stratified Biofilm on a Fluidized Anode During Brewery Wastewater Treatment

In this study, we designed a microbial electrochemical fluidized bed reactor (ME-FBR), with an electroconductive anodic bed made of activated carbon particles for treating a brewery wastewater. Under a batch operating mode, acetate and propionate consumption rates were 13-fold and 2.4-fold higher, respectively, when the fluidized anode was polarized (0.2 V) with respect to open circuit conditions. Operating in a continuous mode, this system could effectively treat the brewery effluent at organic loading rates (OLR) over 1.7 kg m-3NRV d-1 and with removal efficiencies of 95 ± 1.4% (hydraulic retention time of 1 day and an influent of 1.7 g-COD L-1). The coulombic efficiency values highly depended upon the OLR applied, and varied from a 56 ± 15% to 10 ± 1%. Fluorescence in situ hybridization (FISH) analysis revealed a relative high abundance of Geobacter species (ca. 20%), and clearly showed a natural microbial stratification. Interestingly, the Geobacter cluster was highly enriched in the innermost layers of the biofilm (thickness of 10 μm), which were in contact with the electroconductive particles of bed, whereas the rest of bacteria were located in the outermost layers. To our knowledge, this is the first time that such a clear microbial stratification has been observed on an anode-respiring biofilm. Our results revealed the relevant role of Geobacter in switching between the electrode and other microbial communities performing metabolic reactions in the outermost environment of the biofilm

¿Influyen los factores de riesgo de trombosis venosa cerebral en el desarrollo de infarto venoso asociado?

Resumen: Introducción: La trombosis venosa cerebral (TVC) es un proceso multifactorial con amplio espectro clínico y de factores de riesgo (FR), que puede presentar o no infarto venoso. Estudiamos los FR que influyen en el desarrollo del infarto venoso en pacientes con diagnóstico de TVC. Pacientes y métodos: Estudio observacional con inclusión de pacientes consecutivos con diagnóstico de TVC atendidos por la Unidad de Ictus del servicio de Neurología entre los años 1995 y 2007. Se identifican los FR y se analiza su distribución en función de la presencia del infarto venoso. Resultados: Se incluyeron 52 pacientes (37 mujeres; 71,15%) con edad media de 46,73 años (18-78 años). Los factores de riesgo de TVC más frecuentes fueron los estados de hipercoagulabilidad hereditarios (26,92%) y el uso de anticonceptivos orales (ACO) (25% del total muestral y 35,13% de las mujeres). Entre los FR identificados en pacientes con infarto venoso predominan los trastornos de hipercoagulabilidad hereditarios (40,9%) mientras que en los casos sin infarto venoso, el factor más frecuente es el uso de ACO (26,7%; 38% de las mujeres), estando presentes los estados de hipercoagulabilidad sólo en el 16,5%. No observamos ningún caso de infarto venoso con tratamiento ACO y sin estado de hipercoagulabilidad asociado. Conclusiones: En los pacientes con infarto venoso asociado a TVC parece existir un diferente perfil de factores de riesgo asociado, predominando la presencia de estados protrombóticos hereditarios. Abstract: Introduction: Cerebral venous thrombosis (CVT) is a multifactorial process with a wide clinical spectrum and many associated risk factors (RF) that could be complicated with venous infarction (VI). We study the influence of RF in the developing of venous infarction in patients with CVT. Patients and methods: An observational study with consecutive inclusion of patients with CVT diagnosis admitted to the Stroke Unit of a Neurology Department between 1995 and 2007. RF were identified and their distribution according to the presence of VI was analysed. Results: A total of 52 patients were included (37 female; 71.15%) with mean age of 46.73 years (range 18-78 years). The most frequent RF associated with CVT were thrombophilia (26.92%) and oral contraceptives (OC) (25% of all the patients and in 35.13% of females). The most frequent RF in patients with venous infarction was thrombophilia (40.9%), whilst in the CVT group without venous infarction the use of oral contraceptives predominated (26.7% of the total sample; 38% of females), with thrombophilic states only being detected in 16.5%. No cases of venous infarction were found in the group of patients with oral contraceptives but without an associated thrombophilic state. Conclusion: There appears to be a different profile of associated RF in patients with venous infarction associated to CVT, with the presence of thrombophilia prevailing. Palabras clave: Infarto venoso, Trombosis venosa cerebral, Factores de riesgo, Trombofilia, Anticonceptivos orales, Keywords: Venous infarction, Cerebral venous thrombosis, Risk factors, Thrombophilia, Oral contraceptive

Do cerebral venous thrombosis risk factors influence the development of an associated venous infarction?

Introduction: Cerebral venous thrombosis (CVT) is a multifactorial process with a wide clinical spectrum and many associated risk factors (RF) that could be complicated with venous infarction (VI). We study the infl uence of RF in the developing of venous infarction in patients with CVT. Patients and methods: An observational study with consecutive inclusion of patients with CVT diagnosis admitted to the Stroke Unit of a Neurology Department between 1995 and 2007. RF were identifi ed and their distribution according to the presence of VI was analysed. Results: A total of 52 patients were included (37 female; 71.15%) with mean age of 46.73 years (range 18–78 years). The most frequent RF associated with CVT were thrombophilia (26.92%) and oral contraceptives (OC) (25% of all the patients and in 35.13% of females). The most frequent RF in patients with venous infarction was thrombophilia (40.9%), whilst in the CVT group without venous infarction the use of oral contraceptives predominated (26.7% of the total sample; 38% of females), with thrombophilic states only being detected in 16.5%. No cases of venous infarction were found in the group of patients with oral contraceptives but without an associated thrombophilic state. Conclusion: There appears to be a different profi le of associated RF in patients with venous infarction associated to CVT, with the presence of thrombophilia prevailing. Resumen: Introducción: La trombosis venosa cerebral (TVC) es un proceso multifactorial con amplio espectro clínico y de factores de riesgo (FR), que puede presentar o no infarto venoso. Estudiamos los FR que infl uyen en el desarrollo del infarto venoso en pacientes con diagnóstico de TVC. Pacientes y métodos: Estudio observacional con inclusión de pacientes consecutivos con diagnóstico de TVC atendidos por la Unidad de Ictus del servicio de Neurología entre los años 1995 y 2007. Se identifi can los FR y se analiza su distribución en función de la presencia del infarto venoso. Resultados: Se incluyeron 52 pacientes (37 mujeres; 71,15%) con edad media de 46,73 años (18-78 años). Los factores de riesgo de TVC más frecuentes fueron los estados de hipercoagulabilidad hereditarios (26,92%) y el uso de anticonceptivos orales (ACO) (25% del total muestral y 35,13% de las mujeres). Entre los FR identifi cados en pacientes con infarto venoso predominan los trastornos de hipercoagulabilidad hereditarios (40,9%) mientras que en los casos sin infarto venoso, el factor más frecuente es el uso de ACO (26,7%; 38% de las mujeres), estando presentes los estados de hipercoagulabilidad sólo en el 16,5%. No observamos ningún caso de infarto venoso con tratamiento ACO y sin estado de hipercoagulabilidad asociado. Conclusiones: En los pacientes con infarto venoso asociado a TVC parece existir un diferente perfi l de factores de riesgo asociado, predominando la presencia de estados protrombóticos hereditarios. Keywords: Venous infarction, Cerebral venous thrombosis, Risk factors, Thrombophilia, Oral contraceptives, Palabras clave: Infarto venoso, Trombosis venosa cerebral, Factores de riesgo, Trombofilia, Anticonceptivos orale

Geobacter Dominates the Inner Layers of a Stratified Biofilm on a Fluidized Anode During Brewery Wastewater Treatment

In this study, we designed a microbial electrochemical fluidized bed reactor (ME-FBR), with an electroconductive anodic bed made of activated carbon particles for treating a brewery wastewater. Under a batch operating mode, acetate and propionate consumption rates were 13-fold and 2.4-fold higher, respectively, when the fluidized anode was polarized (0.2 V) with respect to open circuit conditions. Operating in a continuous mode, this system could effectively treat the brewery effluent at organic loading rates (OLR) over 1.7 kg m-3NRV d-1 and with removal efficiencies of 95 ± 1.4% (hydraulic retention time of 1 day and an influent of 1.7 g-COD L-1). The coulombic efficiency values highly depended upon the OLR applied, and varied from a 56 ± 15% to 10 ± 1%. Fluorescence in situ hybridization (FISH) analysis revealed a relative high abundance of Geobacter species (ca. 20%), and clearly showed a natural microbial stratification. Interestingly, the Geobacter cluster was highly enriched in the innermost layers of the biofilm (thickness of 10 μm), which were in contact with the electroconductive particles of bed, whereas the rest of bacteria were located in the outermost layers. To our knowledge, this is the first time that such a clear microbial stratification has been observed on an anode-respiring biofilm. Our results revealed the relevant role of Geobacter in switching between the electrode and other microbial communities performing metabolic reactions in the outermost environment of the biofilm