Estudio exploratorio de un taller basado en el Protocolo Unificado para el manejo de ansiedad ante exámenes.

Introducción: La ansiedad ante exámenes es un constructo multidimensional, caracterizado por respuestas fenomenológicas, fisiológicas, conductuales y cognitivas asociadas a una preocupación excesiva sobre posibles consecuencias negativas ante una situación evaluativa. En estudiantes universitarios, presenta tasas de  ocurrencia entre 10 % y 40 %. El objetivo es evaluar la utilidad de un taller grupal y online para el manejo de esta problemática, basado en el Protocolo Unificado. Método: Participaron 31 estudiantes argentinos con edades de 18 a 35 años (M=25; DE= 5,24), siendo el 93.5 % mujeres. Se evaluó medidas pre, post y seguimiento en sintomatología asociada a la ansiedad ante exámenes (GTAI-AR) como variable primaria, y estrategias de regulación emocional (ERQ) y conciencia plena (MAAS) como variables secundarias. Para corroborar diferencias intra grupo se calculó la prueba de Wilcoxon, y como medida de tamaño del efecto (TE), la g de Hedges. Resultados: En cuanto a la variable primaria entre las tres medidas aplicadas, las diferencias fueron significativas con TE moderados y grandes. En las variables secundarias, solo la  reevaluación cognitiva reflejó TE considerables (pequeños) en el pre-post; en el post-seguimiento la supresión expresiva fue la única dimensión que reflejó TE significativos (moderados); y en el pre-seguimiento, únicamente la conciencia plena arrojó TE relevantes (pequeños). Discusión: Los resultados son coherentes con el marco del Protocolo Unificado y las investigaciones actuales sobre su aplicación. Conclusiones: Se espera que estos resultados sean útiles para el diseño de intervenciones similares. Si bien éstos fueron alentadores, se requieren investigaciones de mayor rigurosidad que permitan estudiar su eficacia.

Effects of the toxic dinoflagellate Protoceratium reticulatum and its yessotoxins on the survival and feed ingestion of Argopecten purpuratus veliger larvae.

The effects of yessotoxins (YTXs) produced by the dinoflagellate Protoceratium reticulatum in the early stages of bivalves have not been studied in detail. The present study evaluates the effects of P. reticulatum and YTXs on the survival and feed ingestion of veliger larvae of Argopecten purpuratus. Larvae were 96 h-exposed to 500, 1000 and 2000 P. reticulatum cells mL-1, and their equivalent YTX extract was prepared in methanol. Results show a survival mean of 82 % at the highest density of dinoflagellate, and 38 % for larvae with the highest amount of YTX extract. Feed ingestion is reduced in the dinoflagellate exposure treatments as a function of cell density. Therefore, the effect of YTXs on A. purpuratus represents a new and important area of study for investigations into the deleterious effects of these toxins in the early stages of the life cycle of this and, potentially, other bivalves.

Phenotypic and genomic characterization of a non-pathogenic Epilithonimonas ginsengisoli isolated from diseased farmed rainbow trout (Oncorhynchus mykiss) in Chile.

Flavobacterial infection associated with diseased fish is caused by multiple bacterial species within the family Flavobacteriaceae. In the present study, the Chilean isolate FP99, from the gills of a diseased, farmed rainbow trout (Oncorhynchus mykiss), was characterized using phenotypic and genomic analyses. Additionally assessed was pathogenic activity. Phylogenetic analysis based on 16S rRNA gene sequencing confirmed that isolate FP99 belonged to the genus Epilithonimonas, an average nucleotide identity value of 100% was detected with the Chilean isolate identified as Epilithonimonas sp. FP211-J200. In silico genome analysis, mechanisms for toxins production, and superantigens, adhesion, or other genes associated with virulence were not detected. However, genes encoding proteins for antibiotic resistance were found, including the chrA gene and the nucleotide sequence that encodes for multiple antibiotic resistance MarC proteins. Furthermore, the blaESP-1 gene (87.85% aminoacidic sequence identity), encoding an extended-spectrum subclass B3 metallo-ß-lactamase and conferring carbapenem-hydrolysing activity, and the tet(X) gene, which encodes a monooxygenase that catalyses the degradation of tetracycline-class antimicrobials were carried by this isolate. Phenotyping analyses also supported assignment as E. ginsengisoli. Challenge trials against healthy rainbow trout resulted in no observed pathogenic effect. Our findings identify for the first time the species E. ginsengisoli as associated with fish farming, suggesting that this isolate may be a component of the microbiota of the freshwater system. Notwithstanding, poor environmental conditions and any stressors associated with aquaculture situations or lesions caused by other pathogenic bacteria, such as F. psychrophilum, could favour the entry of E. ginsengisoli into rainbow trout.

Draft genome sequence of Vibrio lentus VLO8, recovered from the larval culture of the Chilean scallop (Argopecten purpuratus).

This announcement reports the genome of Vibrio lentus VLO8 recovered from the larval culture of Chilean scallop. The genomes of strain VLO8 have two contigs with a total length of 5,499,980 bp, an average G + C content of 44.22%, a total number of protein-coding genes of 6,439, and 170 RNAs.

Levator Ani Avulsion in Ultrasound Increases Recurrence in Sacrospinous Fixation.

IMPORTANCE: Pelvic floor translabial ultrasound (TLUS) can identify levator ani muscle (LAM) avulsion and ballooning, which some studies have shown to be possible risk factors for prolapse recurrence. Our group uses TLUS to counsel patients preoperatively. If any of these risk factors exist, we offer sacrocolpopexy over vaginal repair. However, some patients, even though they have these possible risk factors, prefer to undergo vaginal surgery. OBJECTIVE: The objective of this study was to determine if TLUS LAM avulsion and/or ballooning are risk factors for composite outcome recurrence in patients undergoing sacrospinous ligament fixation for pelvic organ prolapse. STUDY DESIGN: This was a retrospective observational study. All patients with vaginal apical repair with sacrospinous ligament fixation with preoperative TLUS were included. Demographics, clinical characteristics, and follow-up were analyzed. Multivariable logistic regression analysis was performed for composite outcome that included TLUS risk factors, age, Pelvic Organ Prolapse Quantification System measurements and stage, and variables with P < 0.1 in the univariate analysis. RESULTS: Eighty-two patients were included. All patients had symptomatic vaginal bulge; 65.4% had stage III prolapse. Concomitant hysterectomy was performed in 54.3%. Median follow-up was 20 months (interquartile range, 8-35 months); 19.8% had LAM avulsion, and 43.2% had ballooning. Anatomic recurrence rate was 23.5%, symptomatic was 22.2%, and reoperation was 1.2%. The composite recurrence rate was 29.6%. In the multivariable logistic regression analysis, unilateral/bilateral avulsion in TLUS was found to be a significant risk factor for composite outcome with an odds ratio of 4.33 (confidence interval, 1.219-15.398; P = 0.023). CONCLUSIONS: Composite outcome of recurrence in our study was 29.6%. Avulsion on TLUS increased the risk of recurrence of pelvic organ prolapse by fourfold.

Overall Anxiety Severity and Impairment Scale (OASIS) and Overall Depression Severity and Impairment Scale (ODSIS): Adaptation and Validation in Buenos Aires, Argentina.

Background: The OASIS and ODSIS scales are two transdiagnostic brief 5-item instruments designed to assess the severity and functional impairment associated with symptoms of anxiety and depression, respectively. The present study aimed to adapt and validate the online versions of both scales in Buenos Aires, Argentina. Method: A sample of 344 women and men from the general population of Buenos Aires completed a test battery consisting of the OASIS, the ODSIS, the Beck Depression Inventory (BDI), the Beck Anxiety Inventory (BAI), the Positive and Negative Affect Scale (PANAS) and the Multicultural Quality of Life Index (MQLI). Descriptive statistics and item discrimination of both scales were analyzed, as well as their factorial structure, internal consistency, and convergent and discriminant validity, using the R programming language. Results: The results showed a unidimensional factorial structure, excellent internal consistency, and adequate construct validity for both the OASIS and the ODSIS. Conclusion: These results supports the use of both scales as valid and reliable instruments to assess severity and interference due to anxiety and depression in the general population of Buenos Aires, Argentina.

Towards sustainable management of agricultural resources: A framework to assess the relationship between water, soil, economic factors, and grain production.

As the requirements for environmental protection and high-efficiency economies increase, grain production (GP) across the globe faces more stringent ecological constraints and economic pressure. Understanding the relationships between natural resources and economic and agricultural factors in grain-producing regions is paramount for ensuring global food security. This paper proposes a methodological framework to explore the relationships between water and soil resources (WSRs), economic input factors (EIFs), and GP. We employed the northeast region of China as a case study to advance our understanding of the factors driving the development of grain-producing capacity. We first constructed and calculated the region's water and soil comprehensive index (WSCI) to describe water-soil properties. We then used hotspot analysis to explore the spatial agglomeration characteristics of WSRs, EIFs, and GP. Finally, we used threshold regression analysis to understand the effects of EIFs and GP with the WSCI as the threshold variable. With the improvement of the WSCI, the positive impact of fertilizer and irrigation on GP shows a U-shaped curve in elasticity coefficients. The positive effect of agricultural machinery on GP decreases significantly, and the impact of labor input on GP is insignificant. These results provide new insights into the relationship between WSRs, EIFs, and GP and a reference for improving GP efficiency globally. This work thus contributes to advancing our capabilities to enable food security while considering aspects of sustainable agriculture in important grain-producing regions across the globe.

Resistance of Argopecten purpuratus scallop larvae to vibriosis is associated with the front-loading of immune genes and enhanced antimicrobial response.

Mass mortality events caused by vibriosis have emerged in hatchery-reared scallop larvae from Chile, threatening scallop aquaculture. In an attempt to mitigate this emerging infectious disease and provide candidates for marker-assisted selective breeding, we tested here the existence of a genetic component of Argopecten purpuratus scallop resistance to the pathogen Vibrio bivalvicida. Through a dual RNA-seq approach we analyzed the basal transcriptome and the transcriptional response to infection in two resistant and two susceptible families as well as the pathogen transcriptomic response to host colonization. The results highlighted a genetic basis in the resistance of scallop larvae to the pathogen. The Vibrio response was characterized by a general metabolic adaptation to the host environment, along with several predicted virulence factors overexpressed in infected scallop larvae with no difference between resistant and susceptible host phenotypes. On the host side, several biological processes were enriched in uninfected resistant larvae. Within these enriched categories, immune-related processes were overexpressed, while morphogenesis, biomineral tissue development, and angiogenesis were under expressed. Particularly, genes involved in immune recognition and antimicrobial response, such as lipopolysaccharide-binding proteins (LBPs), lysozyme, and bactericidal permeability-increasing protein (BPI) were overexpressed in uninfected resistant larvae. As expected, immune-related biological processes were enriched in Vibrio-infected larvae, but they were more numerous in resistant larvae. Overexpressed immune genes in response to infection included several Toll-like receptors, TNF and NF-κB immune signaling genes, and the antimicrobial peptide Big defensin ApBD1. Results strongly suggest that both a front-loading of immune genes and an enhanced antimicrobial response to infection contribute to the resistance, while pathogen infective strategy does not discriminate between host phenotypes. Overall, early expression of host immune genes appears as a strong determinant of the disease outcome that could be used in marker-assisted selective breeding.

First Report, Characterization and Pathogenicity of Vibrio chagasii Isolated from Diseased Reared Larvae of Chilean Scallop, Argopecten purpuratus (Lamarck, 1819).

Two Vibrio strains (VPAP36 and VPAP40) were isolated from moribund-settled larvae of the Chilean scallop Argopecten purpuratus during vibriosis outbreaks that occurred in two commercial scallop larvae hatcheries located in the Inglesa and Tongoy bays in Northern Chile. The strains were identified as Vibrio chagasii using phenotypic characterization and whole genome sequence analysis. Both strains exhibited the phenotypic properties associated with virulence, gelatin hydrolysis and ß-hemolysis, whereas only VPAP36 produced phospholipase and only VPAP40 produced caseinase. The whole genome analysis showed that the strains harbored genes encoding for the virulence factors, the EPS type II secretion system, and Quorum Sensing (auto-inductor 1 and auto-inductor 2), whereas genes encoding a metalloproteinase and a capsular polysaccharide were detected only in the VPAP40 genome. When challenge bioassays using healthy 11-day-old scallop larvae were performed, the V. chagasii VPAP36 and VPAP40 strains exhibited significant (p < 0.05) differences in their larval lethal activity, producing, after 48 h, larval mortalities of 65.51 ± 4.40% and 28.56 ± 5.35%, respectively. Otherwise, the cell-free extracellular products of the VPAP36 and VPAP40 strains produced larval mortalities of 20.86 ± 2.40% and 18.37 ± 2.40%, respectively, after 48 h of exposure. This study reports for the first time the isolation of V. chagasii from the massive larval mortalities of the farmed scallop (Argopecten purpuratus) in Chile, and demonstrates the pathogenic activity of V. chagasii towards the Chilean scallop, the second most important species for Chilean mariculture.

An extension of the characteristic curve model of plant species behavior in heavy metal soils.

This article proposes a mathematical model to characterize phytoremediation processes in soils contaminated with heavy metals. In particular, the proposed model constructs characteristic curves for the concentrations of several metals (As, Cd, Cu, Fe, Pb, Sb, and Zn) in soils and plants based on the experimental data retrieved from several bibliographical sources comprising 305 vegetal species. The proposed model is an extension of previous models of characteristic curves in phytoremediation processes developed by Lam et al. for root measurements using the bioconcentration factor. However, the proposed model extends this approach to consider roots, as well as aerial parts and shoots of the plant, while at the same time providing a less complex mathematical formula compared to the original. The final model shows an adjusted R2 of 0.712, and all its parameters are considered statistically significant. The model may be used to assess samples from a given plant species to identify its potential as an accumulator in the context of soil phytoremediation processes. Furthermore, a simplified version of the model was constructed using an approximation to provide an easy-to-compute alternative that is valid for concentrations below 37,000 mg/kg. This simplified model shows results similar to the original model for concentrations below this threshold and it uses an adjusted factor defined as [Formula: see text] that must be compared with a threshold depending on the metal, type of measurement, and target (e.g., accumulator or hyperaccumulator). The full model construction shows that 90 out of the 305 species assessed have a potential behavior as accumulators and 10 of them as hyperaccumulators. Finally, out of the 1405 experimental measurements, 1177 were shown to be accumulators or hyperaccumulators. In particular, 85% of the results coincide with the reported values, thus validating the proposed model.

Crassostrea gigas oysters from a non-intensive farming area naturally harbor potentially pathogenic vibrio strains.

Farming intensification and climate change are inevitably linked to pathogen emergence in aquaculture. In this context, infectious diseases associated with vibrios span all developmental stages of the Pacific Oyster Crassostrea gigas. Moreover, virulence factors associated with pathogenicity spread among the vibrio community through horizontal gene transfer as part of the natural eco-evolutive dynamic of this group. Therefore, risk factors associated with the emergence of pathogens should be assessed before the appearance of mass mortalities in developing rearing areas. In this context, we characterized the vibrios community associated with oysters cultured in a non-intensive area free of massive mortalities located at Tongoy bay, Chile, through a culture-dependent approach. We taxonomically affiliated our isolates at the species level through the partial sequencing of the heat shock protein 60 gene and estimated their virulence potential through experimental infection of juvenile C. gigas. The vibrio community belonged almost entirely to the Splendidus clade, with Vibrio lentus being the most abundant species. The virulence potential of selected isolates was highly contrasted with oyster survival ranging between 100 and 30 %. Moreover, different vibrio species affected oyster survival at different rates, for instance V. splendidus TO2_12 produced most mortalities just 24 h after injection, while the V. lentus the most virulent strain TO6_11 produced sustained mortalities reaching 30 % of survival at day 4 after injection. Production of enzymes associated with pathogenicity was detected and hemolytic activity was positive for 50 % of the virulent strains and negative for 90 % of non-virulent strains, representing the phenotype that better relates to the virulence status of strains. Overall, results highlight that virulence is a trait present in the absence of disease expression, and therefore the monitoring of potentially pathogenic groups such as vibrios is essential to anticipate and manage oyster disease emergence in both established and under-development rearing areas.

Estrategia multimodal para la prevención de COVID-19, en una faena minera

Introducción: Al inicio de la pandemia de COVID-19, las empresas mineras, debieron implementar sistemas de gestión para prevenir transmisión de SARS-CoV-2. Objetivo: Describir los resultados iniciales de la estrategia multimodal para la prevención de COVID-19, en una faena minera. Materiales y Métodos: Estudio descriptivo, de corte transversal. Se estructuró un sistema de gestión que consideró medidas administrativas, ambientales, tamizaje de riesgos y gestión de casos de riesgo al interior de la empresa. Análisis de datos con estadística descriptiva. Resultados: Las medidas administrativas se tradujeron en que 8.116 (34%) trabajadores de la faena fueron suspendidos de sus labores habituales. El tamizaje de riesgo antes del ingreso a la faena identificó 450 casos sospechosos que fueron derivados a su domicilio. En el procedimiento de gestión de casos 1.073 personas fueron clasificadas en algunos de los grupos de riesgo. Se detectaron 10 casos de trabajadores con RPC positiva, siendo que 50% fue asintomático; en los sintomáticos, los síntomas más frecuentes fueron: tos (60%) y cefalea (40%). Conclusiones: Estos resultados, dan luces sobre la importancia de implementar una estrategia multimodal, adaptada a la realidad local de una empresa de la gran minería, para prevenir la transmisión de SARS-CoV-2.

Background: Mining companies must implement management systems dedicated to health and safety at work to prevent the transmission of SARS-CoV-2 among their workers, however, the literature on this is scarce. Aim: To describe a multimodal strategy for the management of health and safety at work, to address the risk of COVID-19 in large mining. Methods: Descriptive cross-sectional study, carried out in a large mining company. A management system was structured that considered administrative measures, of an environmental nature, risk screening, and management of risk cases within the company. The data analysis was done using descriptive statistics. Results: The administrative measures resulted in 8,116 (34%) workers at the site being suspended from their usual work. Risk screening before entering the site identified 450 suspected cases that were referred to their home. In the case management procedure, 1,073 people were classified in some of the risk groups. 10 cases of workers with PCR were detected in the follow-up period. Environmental measures were not very sensitive. Conclusions: These results shed light on the importance of implementing a multimodal strategy, adapted to the local reality, in preventing the spread of SARS-CoV-2 in the period under study, at the mining site intervened.

Imitative and contagious behaviors in animals and their potential roles in the study of neurodevelopmental disorders.

Social learning in the forms of imitative and contagious behaviors are essential for learning abilities and social interaction. However, children with neurodevelopmental disorders and intellectual disabilities show impairments in these behaviors, which profoundly affect their communication skills and cognitive functions. Although these deficits are well studied in humans, pre-clinical animal model assessments of imitative and contagious behavioral deficits are limited. Here, we first define various forms of social learning as well as their developmental and evolutionary significance in humans. We also explore the impact of imitative and contagious behavioral deficits in several neurodevelopmental disorders associated with autistic-like symptoms. Second, we highlight imitative and contagious behaviors observed in nonhuman primates and other social animals commonly used as models for neurodevelopmental disorders. Lastly, we conceptualize these behaviors in the contexts of mirror neuron activity, learning, and empathy, which are highly debated topics. Taken together, this review furthers the understanding of imitative and contagious behaviors. We hope to prompt and guide future behavioral studies in animal models of neurodevelopmental disorders.

Functionality During the First Five Years After the Diagnosis of Schizophrenia. A Cohort Study in a Colombian Population.

OBJECTIVE: There is a lack of studies on the natural history of the initial stages of schizophrenia in Colombia. This study aims to assess functionality in the first five years after the diagnosis of schizophrenia. METHODS: Naturalistic longitudinal study of 50 patients with early schizophrenia evaluated between 2011 and 2014. Data about demographic background, symptoms, introspection, treatment and adverse reactions were collected in all patients every 3 months for at least 3-5 years. Functionality was measured with the Global Assessment of Functioning (GAF) and Personal and Social Performance (PSP) scales. RESULTS: Patients were followed up for a mean of 174±62.5 weeks and showed moderate difficulties in overall functioning. This functioning was modified by polypharmacy, degree of introspection, changes in antipsychotic regimens, and the number of episodes, relapses and hospitalisations. CONCLUSIONS: The results suggest that functional outcomes seem to be related to the use of polypharmacy, degree of insight, changes in antipsychotic regimens, and number of episodes, relapses and hospitalisations during the first years of schizophrenia.

Functionality During the First Five Years After the Diagnosis of Schizophrenia. A Cohort Study in a Colombian Population / Funcionalidad en los primeros cinco años después del diagnóstico de esquizofrenia. Estudio de cohorte en población colombiana

ABSTRACT Objective: There is a lack of studies on the natural history of the initial stages of schizophrenia in Colombia. This study aims to assess functionality in the first five years after the diagnosis of schizophrenia. Methods: Naturalistic longitudinal study of 50 patients with early schizophrenia evaluated between 2011 and 2014. Data about demographic background, symptoms, introspection, treatment and adverse reactions were collected in all patients every 3 months for at least 3-5 years. Functionality was measured with the Global Assessment of Functioning (GAF) and Personal and Social Performance (PSP) scales. Results: Patients were followed up for a mean of 174 ± 62.5 weeks and showed moderate difficulties in overall functioning. This functioning was modified by polypharmacy, degree of introspection, changes in antipsychotic regimens, and the number of episodes, relapses and hospitalisations. Conclusions: The results suggest that functional outcomes seem to be related to the use of polypharmacy, degree of insight, changes in antipsychotic regimens, and number of episodes, relapses and hospitalisations during the first years of schizophrenia.

RESUMEN Objetivo: Existe una falta de estudios en la historia natural de los estadios iniciales de la esquizofrenia en Colombia. Este estudio apunta a evaluar la funcionalidad en los primeros cinco años después del diagnóstico de esquizofrenia. Método: Estudio longitudinal naturalístico de 50 pacientes con esquizofrenia temprana evaluados entre los anos 2011 y 2014. Loa datos demográficos, síntomas, introspección, tratamiento, y reacciones adversas fueron recolectados en todos los pacientes cada 3 meses por lo menos3a5anos. La funcionalidad se midió mediante la escala global de funcionamiento (GAF), y la escala de funcionamiento personal y social (PSP). Resultados: Los pacientes fueron seguidos por una media de 174 semanas (SD: 62.5) y mostraron dificultades moderadas en su funcionamiento global. Este funcionamiento fue modificado por la presencia de polifarmacia, grado de introspección, cambios en los esquemas antipsicóticos, y el número de episodios, recaídas, y hospitalizaciones. Conclusiones: Los resultados sugieren que los desenlaces en funcionalidad parecen estar relacionados con uso de polifarmacia, grado de introspección, cambios en esquemas antipsicóticos, y numero de episodios, recaídas, y hospitalizaciones durante los primeros años de esquizofrenia.

Factores de riesgo del síndrome del trabajador quemado en médicos residentes peruanos: Análisis de la ENSUSALUD 2016 / Risk factors of burnout syndrome in Peruvian residents: 2016 ENSUSALUD analysis

Resumen Introducción: el período de especialización de los médicos es una etapa que implica elevada prevalencia de estrés y puede desencadenar el síndrome del trabajador quemado. Objetivo: identificar los factores de riesgo del síndrome del trabajador quemado en médicos residentes peruanos. Métodos: estudio transversal analítico basado en el análisis secundario de los datos de la Encuesta Nacional de Satisfacción de Usuarios en Salud 2016, que incluyó a 332 médicos residentes que laboraban en la Provincia Constitucional del Callao y los 24 departamentos del Perú. Las variables independientes fueron obtenidas del cuestionario N° 2 y la variable dependiente se midió con la Escala de Maslach (ítem 50 en el capítulo XI del cuestionario N° 2). El análisis multivariado incluyó el modelo de regresión Poisson con varianza robusta para determinar la asociación entre las variables. Resultados: se encontró que tuvieron mayor riesgo de desarrollar el síndrome del trabajador quemado aquellos cuyo tiempo transcurrido desde la titulación hasta el momento de la encuesta era menor de seis años (RP=2,93; IC95 %=1,59-5,39) y entre 6 a 10 años (RP=2,28; IC95 %=1,21-4,30); así como en aquellos con cargas laborales que no les daba tiempo para su vida personal y familiar (RP=2,45; IC95 %=1,72-3,50), en los que manifestaron tener una enfermedad provocada o agravada por el trabajo (RP=2,21; IC95 %=1,63-2,99) y los que habían sido víctimas de amenazas en su lugar de trabajo. Conclusiones: la sobrecarga laboral que desequilibra la relación vida laboral-vida personal/familiar y el sufrimiento de violencia psicológica en el centro laboral, especialmente cuando el residente se encuentra en los primeros diez años de ejercicio profesional y en presencia de alguna morbilidad, aumentan el riesgo del síndrome del trabajador quemado.

Abstract Introduction: the specialization period of doctors is a stage that implies a high prevalence of stress and can trigger burnout syndrome. Objective: to identify the risk factors for burnout syndrome in Peruvian residents. Methods: an analytical cross-sectional study was carried out based on the secondary analysis of data from the 2016 National Health User Satisfaction Survey, which included 332 residents who worked in the Constitutional Province of Callao and the 24 departments of Peru. The independent variables were obtained from questionnaire No. 2, and the dependent variable was measured with the Maslach Inventory (item 50 in chapter XI of questionnaire No. 2). The multivariate analysis included the Poisson regression model with robust variance to determine the association between the variables. Results: the multivariate analysis confirmed that in whom the time elapsed from the degree to the moment of the survey was less than 6 years (PR = 2.93; 95 % CI = 1.59-5.39) and between 6 to 10 years (PR = 2.28; 95 % CI = 1.21-4.30); as well as in those with workloads that did not give them time for their personal and family life (PR = 2.45; 95 % CI = 1.72-3.50), in those who reported having a disease caused and / or aggravated by work (PR = 2.21; 95 % CI = 1.63-2.99) and those who had been victims of threats in their workplace had a higher risk of developing burnout syndrome. Conclusions: the work overload that unbalances the relationship between work life and personal / family life and the suffering of psychological violence in the workplace, especially when the resident is in the first ten years of professional practice and in the presence of some morbidity increase the risk of burnout worker syndrome.

Determinantes de letalidad por la COVID-19 en trabajadores de salud en la primera y segunda olas en Perú / Determinants of COVID-19 fatality among healthcare workers during the first and second waves in Peru

RESUMEN Introducción: Los trabajadores de salud presentan alto riesgo de la COVID-19, hecho especialmente importante en el Perú que tiene una de los mayores índices de letalidad por esta pandemia. Objetivo: Identificar y comparar los determinantes de letalidad por la COVID-19 en trabajadores de salud del Perú, entre la primera y segunda olas. Material y Métodos: Análisis secundario de datos de la Sala situacional de trabajadores del sector salud de COVID-19, que incluyó 95 966 casos confirmados de la COVID-19 hasta el 21 de octubre de 2021. Se calculó el índice de letalidad, así como los odds ratio -y sus intervalos de confianza a 95 %- crudo y ajustado mediante regresión logística binaria. Resultados: 65,5 % fueron mujeres, de 41,2 (D.E.=11,1) años en promedio. El índice de letalidad fue mayor durante la segunda ola (2,1 % [IC95%=2,0-2,2] vs 2,6 % [IC95 %=2,5-2,8]). El sexo masculino (3,49 [IC95 %=3,09-3,95] en la primera ola y 2,65 [IC95 %=2,32-3,02] en la segunda ola), la edad ≥40 años (9,97 [IC95 %=8,19-12,13] en la primera ola y 10,77 [IC95 %=8,56-13,54] en la segunda ola), así como ser profesional de salud (1,14 [IC95 %=1,01-1,28] en la primera ola y 1,59 [IC95 %=1,39-1,82] en la segunda ola) determinaron la letalidad por la COVID-19 en ambas olas. Conclusiones: La letalidad fue mayor en la segunda ola y se asoció a determinantes individuales, geográficos y ocupacionales de los trabajadores de salud peruanos.

ABSTRACT Introduction: Healthcare workers are at high risk of COVID-19, a fact that is especially important in Peru which has one of the highest COVID-19 case fatality rates. Objective: To identify and compare the determinants of COVID-19 case fatality among healthcare workers in Peru between the first and second waves of the pandemic. Material and Methods: Secondary analysis of data from the COVID-19 Health Sector Workers Situation Room which included 95,966 confirmed cases of COVID-19 until October 21, 2021. Case fatality rate was calculated; crude and adjusted odds ratios with 95 % confidence intervals were obtained by applying binary logistic regression. Results: The results show that 65,5 % of the workers were female, aged 41,2 (S.D.=11,1) years on average. Case fatality rate was higher in the second wave. Male sex (3,49 [95 %CI=3,09-3,95] in the first wave (2,1 % [95 %CI=2,0-2,2] vs. 2,6 % [95 %CI=2,5-2,8]), and 2,65 [95 %CI=2,32-3,02] in the second wave), ≥40 years ofage (9,97 [95 %CI=8,19-12,13] in the first wave, and 10,77 [95 %CI=8,56-13,54] in the second wave), and healthcare professionals (1,14 [95 %CI=1,01-1,28] in the first wave, and 1,59 [95 %CI=1,39-1,82] in the second wave) were determinants for COVID-19 case fatality in both waves. Conclusions: COVID-19 case fatality was higher in the second wave, and was associated with individual, geographic and occupational determinants in Peruvian healthcare workers.

A g-type lysozyme from the scallop Argopecten purpuratus participates in the immune response and in the stability of the hemolymph microbiota.

Lysozymes are antimicrobial acid hydrolases widely distributed in nature. They are located inside the cells in lysosomes, or they are secreted to the extracellular space, where they can lyse the cell wall of certain species of bacteria via hydrolysis of the peptidoglycan. Thus, lysozymes are bacteriolytic enzymes and play a major biological role in biodefense, as these enzymes can act as antibacterial and immune-modulating agents. In this study, we characterized a g-type lysozyme from the scallop Argopecten purpuratus named ApGlys. The cDNA sequence comprises an open reading frame (ORF) of 600 nucleotides, codifying for a putative protein of 200 amino acids with a signal peptide of 18 amino acids. The deduced mature protein sequence displays a molecular weight of 20.07 kDa and an isoelectric point (pI) of 6.49. ApGlys deduced protein sequence exhibits conserved residues associated with catalytic activity and substrate fixation in other g-type lysozymes. The phylogenetic analysis revealed a high degree of identity of ApGlys with other mollusk g-type lysozymes, which form a restricted and separated clade from the vertebrate lysozymes. ApGlys transcripts were constitutively and highly expressed in the digestive gland, and it was induced in hemocytes and gills of scallops after an immune challenge. Furthermore, the ApGlys protein was located inside hemocytes of immunostimulated scallops, determined by immunofluorescence analysis. Finally, the transcript silencing of ApGlys by RNA interference led to an increase of total culturable bacteria from the scallop hemolymph. Furthermore, we detected a higher diversity of the bacterial community in ApGlys-silenced scallops and an imbalance of certain bacterial groups present in the hemolymph by 16S rDNA deep amplicon sequencing. Overall, our results showed that ApGlys is a new member of scallop lysozymes that is implicated in the immune response and in the microbial homeostasis of A. purpuratus hemolymph.

Red Cusk-Eel (Genypterus chilensis) Gut Microbiota Description of Wild and Aquaculture Specimens.

Chile has promoted the diversification of aquaculture and red cusk-eel (Genypterus chilensis) is one of the prioritized species. However, many aspects of the biology of the species are unknown or have little information available. These include intestinal microbiota, an element that may play an important role in the nutrition and defense of cultured animals for meat production. This study compares the microbiota composition of the intestinal contents of wild and aquaculture fish to explore the microbial communities present and their potential contribution to the host. DNA was extracted from the intestinal content samples and the V4 region of the 16S rRNA gene was amplified and sequenced using the Ion Torrent platform. After the examination of the sequences, strong differences were found in the composition at the level of phylum, being Firmicutes and Tenericutes the most abundant in aquaculture and wild condition, respectively. At the genus level, the Vagococcus (54%) and Mycoplasma (97%) were the most prevalent in the microbial community of aquaculture and wild condition, respectively. The evaluation of predicted metabolic pathways in these metagenomes showed that in wild condition there is an important presence of lipid metabolism belonging to the unsaturated fatty acid synthesis. In the aquaculture condition, the metabolism of terpenoids and polyketides were relevant. To our knowledge, this is the first study to characterize and compare the intestinal microbiota of red cusk-eel (Genypterus chilensis) of wild and aquaculture origin using high-throughput sequencing.

[The Role of Colombian Psychiatrists in the Midst of the COVID 19 Pandemic]. / El rol del psiquiatra colombiano en medio de la pandemia de COVID-19.

INTRODUCTION: The COVID-19 pandemic is having an impact on multiple levels, one being the way of providing mental health care services. A study was proposed in order to identify the standpoints regarding the role we must assume as psychiatrists in the setting of this pandemic in Colombia. METHODS: A study was developed employing a Delphi-type methodology. Three types of psychiatrist were included for the application of the instrument: directors of academic psychiatry programmes, directors of mental health institutions and private practitioners. RESULTS: Responses were collected over the course of a month (between April and May) by 24 participants corresponding to 14 private practitioners (58.3%), 6 heads of academic programmes (25.1%) and 4 directors of mental health services (16.6%). The results, grouped around the psychiatric work, describe the impact generated by the pandemic and the possible role of the specialist. CONCLUSIONS: Consistency was identified around the need to provide a differential approach according to the vulnerabilities of each group of people exposed to the pandemic; as well as the remote provision of health care through technology, often using videoconferencing.