117 research outputs found
Motivos para la elección y preferencias de la especialidad médica en médicos generales del Perú
Objetivo: describir los factores que influyen en la elección de la especialidad médica en médicos generales en Perú y calcular la distribución de postulantes y vacantes en el examen de residentado médico en el 2018. Materiales y métodos: estudio descriptivo en médicos generales que asistieron a un evento que tuvo por objetivo informar sobre las especialidades médicas, realizado por el Colegio Médico del Perú. Durante dicho evento, se distribuyó un cuestionario autoaplicado para recolectar las variables de interés. Los análisis estadísticos se realizaron con el programa Stata v14. Resultados: se incluyeron 298 participantes, de los cuales, el 54,4% fueron mujeres, 46,3% tenían menos de 28 años, 59,8% estudió su pregrado en Lima y 52,3% culminaron sus estudios entre 2014-2016. El 49,7%, 46,6%, y 3,7% prefirió elegir una especialidad quirúrgica, clínica, y alguna otra, respectivamente. Entre los factores para elegir a qué especialidad médica postular, aquellos considerados importantes o muy importantes por la mayor parte de los encuestados fueron: la alta probabilidad de conseguir empleo (98,7%), tener retos intelectuales (94,9%), ver casos interesantes (93,2%), y tener buenos ingresos económicos (90,8%). Las especialidades con mayor cantidad de postulantes para cada vacante fueron cirugía plástica y dermatología, mientras que las que tuvieron menos postulantes que vacantes fueron medicina familiar y medicina interna. Conclusiones: los factores económicos y académicos son los más importantes para la elección de una especialidad médica, en el contexto donde las especialidades del primer nivel de atención tienen pocos postulantes. Esto permite entender mejor este proceso, informar adecuadamente a los médicos sobre las especialidades disponibles, e impulsar estrategias para aumentar el interés de los médicos en especialidades necesarias en el país
Fasciola hepatica induces eosinophil apoptosis in the migratory and biliary stages of infection in sheep
The aim of the present work was to evaluate the number of apoptotic eosinophils in the livers of sheep experimentally infected with Fasciola hepatica during the migratory and biliary stages of infection. Four groups (n = 5) of sheep were used; groups 1–3 were orally infected with 200 metacercariae (mc) and sacrificed at 8 and 28 days post-infection (dpi), and 17 weeks post-infection (wpi), respectively. Group 4 was used as an uninfected control. Apoptosis was detected using immunohistochemistry with a polyclonal antibody against anti-active caspase-3, and transmission electron microscopy (TEM). Eosinophils were identified using the Hansel stain in serial sections for caspase-3, and by ultrastructural features using TEM. At 8 and 28 dpi, numerous caspase-3+ eosinophils were mainly found at the periphery of acute hepatic necrotic foci. The percentage of caspase -3+ apoptotic eosinophils in the periphery of necrotic foci was high (46.1–53.9) at 8 and 28 dpi, respectively, and decreased in granulomas found at 28 dpi (6%). Transmission electron microscopy confirmed the presence of apoptotic eosinophils in hepatic lesions at 8 and 28 dpi. At 17 wpi, apoptotic eosinophils were detected in the infiltrate surrounding some enlarged bile ducts containing adult flukes. This is the first report of apoptosis induced by F. hepatica in sheep and the first study reporting apoptosis in eosinophils in hepatic inflammatory infiltrates in vivo. The high number of apoptotic eosinophils in acute necrotic tracts during the migratory and biliary stages of infection suggests that eosinophil apoptosis may play a role in F. hepatica survival during different stages of infection.This work was supported by EU grants (FPVII-265862-PARAVAC, H2020-635408-PARAGONE) and the Spanish Ministry of Science grant AGL2009-08726. TEM studies were carried out by the Central Services for Research of the University of Córdoba (SCAI)Veterinari
Fasciola hepatica induces eosinophil apoptosis in the migratory and biliary stages of infection in sheep
The aim of the present work was to evaluate the number of apoptotic eosinophils in the livers of sheep experimentally infected with Fasciola hepatica during the migratory and biliary stages of infection. Four groups (n = 5) of sheep were used; groups 1–3 were orally infected with 200 metacercariae (mc) and sacrificed at 8 and 28 days post-infection (dpi), and 17 weeks post-infection (wpi), respectively. Group 4 was used as an uninfected control. Apoptosis was detected using immunohistochemistry with a polyclonal antibody against anti-active caspase-3, and transmission electron microscopy (TEM). Eosinophils were identified using the Hansel stain in serial sections for caspase-3, and by ultrastructural features using TEM. At 8 and 28 dpi, numerous caspase-3+ eosinophils were mainly found at the periphery of acute hepatic necrotic foci. The percentage of caspase -3+ apoptotic eosinophils in the periphery of necrotic foci was high (46.1–53.9) at 8 and 28 dpi, respectively, and decreased in granulomas found at 28 dpi (6%). Transmission electron microscopy confirmed the presence of apoptotic eosinophils in hepatic lesions at 8 and 28 dpi. At 17 wpi, apoptotic eosinophils were detected in the infiltrate surrounding some enlarged bile ducts containing adult flukes. This is the first report of apoptosis induced by F. hepatica in sheep and the first study reporting apoptosis in eosinophils in hepatic inflammatory infiltrates in vivo. The high number of apoptotic eosinophils in acute necrotic tracts during the migratory and biliary stages of infection suggests that eosinophil apoptosis may play a role in F. hepatica survival during different stages of infection
Apoptosis of peritoneal leucocytes during early stages of Fasciola hepatica infections in sheep
Several immunomodulatory properties have been described in Fasciola hepatica infections. Apoptosis has been shown to be an effective mechanism to avoid the immune response in helminth infections. The aim of the present work was to study apoptosis in peritoneal leucocytes of sheep experimentally infected with F. hepatica during the early stages of infection. Five groups (n = 5) of sheep were used. Groups 2–5 were orally infected with 200 metacercariae (mc) and sacrificed at 1, 3, 9 and 18 days post-infection (dpi), respectively. Group 1 was used as the uninfected control (UC). Apoptosis was detected using three different methods 1) immunocytochemistry (ICC) with a polyclonal antibody anti-active caspase-3; 2) an annexin V flow cytometry assay using the Annexin V-FITC/propidium iodide (PI); and 3) transmission electron microscopy (TEM). The differential leucocyte count revealed that the majority of peritoneal granulocytes were eosinophils, which increased significantly at 9 and 18 dpi with respect to the uninfected controls. The ICC study revealed that the percentage of caspase-3+ apoptotic peritoneal leucocytes increased significantly from 3 dpi onwards with respect to the uninfected controls. The flow cytometry annexin V assay detected a very significant (P < 0.001) increase of apoptotic peritoneal macrophages, lymphocytes and granulocytes, which remained higher than in the UC until 18 dpi. Transmission electron microscopy studies also confirmed the presence of apoptosis in peritoneal eosinophils at 18 dpi. This is the first report of apoptosis induced by F. hepatica in the peritoneal leucocytes of sheep in vivo. The results of this work suggest the importance of apoptosis induction for the survival of the juvenile parasites in the peritoneal migratory stages of infection.This work was supported by EU grants (H2020-635408-PARAGONE) and the Spanish Ministry of Science grant AGL2015-67023-C2-1-R. The TEM studies were carried out by the Central Research Services (SCAI) of the University of CórdobaAccepted manuscriptVeterinari
Factores asociados al ingreso económico, carga laboral y clima laboral en un grupo de médicos generales jóvenes en Perú
Objetivo: Evaluar los factores asociados al ingreso económico, carga laboral y clima laboral en un grupo de médicos generales jóvenes de Perú. Materiales y métodos: Estudio transversal analítico en médicos generales que asistieron a un evento del Colegio Médico del Perú. Durante dicho evento, se realizó una encuesta para recoger las características de sus dos últimos empleos. Para evaluar las asociaciones de interés se calcularon odds ratios crudos y ajustados (ORa) usando modelos de regresión logística de efectos mixtos. Resultados: Se analizaron 332 empleos reportados por 221 médicos. El ingreso económico bajo (S/ 16,00 por hora o menos) fue menos frecuente para empleos en el Ministerio de Salud – MINSA (ORa: 0,38) o en el seguro social – EsSalud (ORa: 0,09) en comparación con el sector privado, pero más frecuente en mujeres (ORa: 1,94), y en quienes realizaban una labor asistencial (ORa: 4,31). El referir mucha carga laboral fue más frecuente en aquellos con ≥ 30 años (ORa: 2,72), y para empleos en el MINSA (ORa: 3,13) o EsSalud (ORa: 7,98) en comparación con el sector privado. El referir un clima laboral inadecuado no presentó factores asociados. Conclusiones: Los médicos que tuvieron como empleador un establecimiento privado, las mujeres, y quienes realizaron labor asistencial reportaron empleos con menor ingreso económico. Los médicos de mayor edad y quienes tuvieron como empleador al MINSA o a EsSalud reportaron empleos con mayor carga laboral. El reportar un empleo con un clima laboral inadecuado no tuvo factores asociados
Comparative dynamics of peritoneal cell immunophenotypes in sheep during the early and late stages of the infection with Fasciola hepatica by flow cytometric analysis
Background: The peritoneal cell populations (PCP) are thought to play a crucial role during the early immune response
in Fasciola hepatica infection while newly excysted juveniles (NEJ) are migrating in the peritoneal cavity (PC) towards the
liver. In this study, we aimed to determine the immunophenotypes of the PCP and to analyse the dynamics of the
recruitment of the PCP during the early and late stage of the infection in sheep infected with F. hepatica.
Methods: Thirty-seven sheep were divided into three groups: Group 1 (n = 20) and 2 (n = 10) were challenged with
F. hepatica, Group 3 (n = 7) was not infected and remained as uninfected control (UC). After the slaughtering, peritoneal
lavages were carried out to isolate peritoneal cell populations at 1, 3, 9 and 18 days post-infection (dpi) for Group 1 and
at 14 weeks post-infection (wpi) for Group 2 and 3. Flow cytometry was conducted to assess the dynamics of peritoneal
cavity cell populations.
Results: TCD4 cells showed a significant decrease at 1 and 18 dpi when compared to UC; no statistical differences were
detected for TCD8 and WC1+
γδ during the early stage of the infection with respect to the UC. CD14 cells exhibited a
decreasing trend, with a significant decrease at 9 and 18 dpi when compared to the UC. The dynamics of MHCII and
CD83 cells showed a similar increasing pattern from 3 to 18 dpi. During the chronic stage, both TCD4 and TCD8 cells
showed no significant differences when compared to the UC, although a slight but statistically significant higher level of
WC1+
γδ cells was observed. A lower percentage of antigen-presenting cells (APCs) was detected with respect to the UC.
Conclusions: The recruitment of the lymphocytes subsets did not show a significant increase during the course of the
infection and only WC1+
γδ cells displayed a significant increase at the chronic stage. For the CD14, a decreasing trend
was observed during the early stage, which was statistically significant at the chronic stage of the infection. Peritoneal
CD83 and MHCII cells developed an increasing trend during the early stage of infection, and showed a significant
decrease at the late stage of the infection.This study was funded by the European Union Grant H2020-635408- PARAGONE and by National Grant AGL2015-67023-C2-1-R. RPC was supported by an FPU grant of the Spanish Ministry of Education, Culture and Sport. Funding bodies were neither involved in the design of the study nor in analysis and interpretation of the dataVeterinari
Clinical practice guideline for the management of atrial fibrillation for the Peruvian Social Security (EsSalud)
Introducción. El presente artículo resume la guía de práctica clínica (GPC) para el manejo de pacientes con fibrilación auricular (FA) en el Seguro Social del Perú (EsSalud). Objetivo. Proveer recomendaciones clínicas basadas en evidencia para el manejo de pacientes con FA en EsSalud. Métodos. Se conformó un grupo elaborador (GEG) que incluyó médicos especialistas y metodólogos. El GEG formuló 9 preguntas clínicas a ser respondidas por la presente GPC. Se realizó búsquedas sistemáticas de revisiones sistemáticas y ,cuando fue considerado pertinente, estudios primarios en Medline durante el 2017. Se seleccionó la evidencia para responder cada una de las preguntas clínicas planteadas. La certeza de la evidencia fue evaluada usando la metodología Grading of Recommendations Assessment, Development, and Evaluation (GRADE). En reuniones de trabajo periódicas, el GEG usó la metodología GRADE para revisar la evidencia y formular las recomendaciones, los puntos de buenas prácticas clínicas y los flujogramas de la GPC. Finalmente, la GPC fue aprobada con Resolución N° 91 – IETSI – ESSALUD – 2018. Resultados. La presente GPC abordó 9 preguntas clínicas, divididas en tres temas: prevención de eventos tromboembólicos, estrategias de control y manejo de FA en emergencias. En base a dichas preguntas se formularon 12 recomendaciones (6 recomendaciones fuertes y 6 recomendaciones condicionales), 29 puntos de buena práctica clínica, y 2 algoritmos. Conclusión. El presente artículo resume la metodología y las conclusiones basadas en evidencias de la GPC para manejo de pacientes con FA en EsSalud.Abstract. This article summarizes the clinical practice guide (CPG) for the management of patients with atrial fibrillation (AF) in the Social Security of Peru (EsSalud). Objective. To provide clinical recommendations based on evidence for the management of patients with AF in EsSalud. Methods. A CPG for the management of patients with AF in EsSalud was developed. To this end, a guideline development group (GDG) was established, including medical specialists and methodologists. The GDG formulated 9 clinical questions to be answered by this CPG. Systematic searches of systematic reviews and ,when it was considered pertinent, primary studies were conducted in Medline during 2017. The evidence to answer each of the posed clinical questions was selected. The quality of the evidence was evaluated using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology. In periodic work meetings, the GDG used the GRADE methodology to review the evidence and formulate the recommendations, points of good clinical practice, and the flowchart of the CPG. Finally, the CPG was approved with Resolution No. 91 – IETSI – ESSALUD – 2018. Results. This CPG addressed 9 clinical questions, divided into three topics: prevention of thromboembolic events, maintenance therapy and management of AF. Based on these questions, 12 recommendations (6 strong recommendations and 6 weak recommendations), 29 points of good clinical practice, and 2 algorithms were formulated. Conclusion. This article summarizes the methodology and evidence-based conclusions from the CPG for the management of AF in EsSalud
Phosphodiesterase-5 inhibitors have distinct effects on the hemodynamics of the liver
<p>Abstract</p> <p>Background</p> <p>The NO - cGMP system plays a key role in the regulation of sinusoidal tonus and liver blood flow with phosphodiesterase-5 (PDE-5) terminating the dilatory action of cGMP. We, therefore, investigated the effects of PDE-5 inhibitors on hepatic and systemic hemodynamics in rats.</p> <p>Methods</p> <p>Hemodynamic parameters were monitored for 60 min. after intravenous injection of sildenafil and vardenafil [1, 10 and 100 μg/kg (sil1, sil10, sil100, var1, var10, var100)] in anesthetized rats.</p> <p>Results</p> <p>Cardiac output and heart rate remained constant. After a short dip, mean arterial blood pressure again increased. Systemic vascular resistance transiently decreased slightly. Changes in hepatic hemodynamic parameters started after few minutes and continued for at least 60 min. Portal (var10 -31%, sil10 -34%) and hepatic arterial resistance (var10 -30%, sil10 -32%) decreased significantly (p < 0.05). At the same time portal venous (var10 +29%, sil10 +24%), hepatic arterial (var10 +34%, sil10 +48%), and hepatic parenchymal blood flow (var10 +15%, sil10 +15%) increased significantly (p < 0.05). The fractional liver blood flow (total liver flow/cardiac output) increased significantly (var10 26%, sil10 23%). Portal pressure remained constant or tended to decrease. 10 μg/kg was the most effective dose for both PDE-5 inhibitors.</p> <p>Conclusion</p> <p>Low doses of phosphodiesterase-5 inhibitors have distinct effects on hepatic hemodynamic parameters. Their therapeutic use in portal hypertension should therefore be evaluated.</p
Antimicrobial resistance among migrants in Europe: a systematic review and meta-analysis
BACKGROUND: Rates of antimicrobial resistance (AMR) are rising globally and there is concern that increased migration is contributing to the burden of antibiotic resistance in Europe. However, the effect of migration on the burden of AMR in Europe has not yet been comprehensively examined. Therefore, we did a systematic review and meta-analysis to identify and synthesise data for AMR carriage or infection in migrants to Europe to examine differences in patterns of AMR across migrant groups and in different settings. METHODS: For this systematic review and meta-analysis, we searched MEDLINE, Embase, PubMed, and Scopus with no language restrictions from Jan 1, 2000, to Jan 18, 2017, for primary data from observational studies reporting antibacterial resistance in common bacterial pathogens among migrants to 21 European Union-15 and European Economic Area countries. To be eligible for inclusion, studies had to report data on carriage or infection with laboratory-confirmed antibiotic-resistant organisms in migrant populations. We extracted data from eligible studies and assessed quality using piloted, standardised forms. We did not examine drug resistance in tuberculosis and excluded articles solely reporting on this parameter. We also excluded articles in which migrant status was determined by ethnicity, country of birth of participants' parents, or was not defined, and articles in which data were not disaggregated by migrant status. Outcomes were carriage of or infection with antibiotic-resistant organisms. We used random-effects models to calculate the pooled prevalence of each outcome. The study protocol is registered with PROSPERO, number CRD42016043681. FINDINGS: We identified 2274 articles, of which 23 observational studies reporting on antibiotic resistance in 2319 migrants were included. The pooled prevalence of any AMR carriage or AMR infection in migrants was 25·4% (95% CI 19·1-31·8; I2 =98%), including meticillin-resistant Staphylococcus aureus (7·8%, 4·8-10·7; I2 =92%) and antibiotic-resistant Gram-negative bacteria (27·2%, 17·6-36·8; I2 =94%). The pooled prevalence of any AMR carriage or infection was higher in refugees and asylum seekers (33·0%, 18·3-47·6; I2 =98%) than in other migrant groups (6·6%, 1·8-11·3; I2 =92%). The pooled prevalence of antibiotic-resistant organisms was slightly higher in high-migrant community settings (33·1%, 11·1-55·1; I2 =96%) than in migrants in hospitals (24·3%, 16·1-32·6; I2 =98%). We did not find evidence of high rates of transmission of AMR from migrant to host populations. INTERPRETATION: Migrants are exposed to conditions favouring the emergence of drug resistance during transit and in host countries in Europe. Increased antibiotic resistance among refugees and asylum seekers and in high-migrant community settings (such as refugee camps and detention facilities) highlights the need for improved living conditions, access to health care, and initiatives to facilitate detection of and appropriate high-quality treatment for antibiotic-resistant infections during transit and in host countries. Protocols for the prevention and control of infection and for antibiotic surveillance need to be integrated in all aspects of health care, which should be accessible for all migrant groups, and should target determinants of AMR before, during, and after migration. FUNDING: UK National Institute for Health Research Imperial Biomedical Research Centre, Imperial College Healthcare Charity, the Wellcome Trust, and UK National Institute for Health Research Health Protection Research Unit in Healthcare-associated Infections and Antimictobial Resistance at Imperial College London
Cruising y e-citas: un nuevo contexto para los encuentros sexuales entre hombres jóvenes que tienen sexo con hombres
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