Comparative Transcriptome Analysis of Babesia bigemina Attenuated Vaccine and Virulent Strains of Mexican Origin.

Bovine babesiosis, caused by the protozoan Babesia bigemina, is one of the most important hemoparasite diseases of cattle in Mexico and the world. An attenuated B. bigemina strain maintained under in vitro culture conditions has been used as a live attenuated vaccine; however, the biological mechanisms involved in attenuation are unknown. The objective of this study was to identify, through a comparative transcriptomics approach, the components of the B. bigemina virulent parasites that are differentially expressed in vivo, as opposed to those expressed by B. bigemina attenuated vaccine parasites when inoculated into naïve cattle. The biological material under study was obtained by inoculating spleen-intact cattle with infected erythrocytes containing either the attenuated strain or a virulent field strain. After RNA extraction, transcriptomic analysis (RNA-seq) was performed, followed by bioinformatic Differential Expression (DE) analysis and Gene Ontology (GO) term enrichment. The high-throughput sequencing results obtained by analyzing three biological replicates for each parasite strain ranged from 9,504,000 to 9,656,000, and 13,400,000 to 15,750,000 reads for the B. bigemina attenuated and virulent strains, respectively. At least 519 differentially expressed genes were identified in the analyzed strains. In addition, GO analysis revealed both similarities and differences across the three categories: cellular components, biological processes, and molecular functions. The attenuated strain of B. bigemina derived from in vitro culture presents global transcriptomic changes when compared to the virulent strain. Moreover, the obtained data provide insights into the potential molecular mechanisms associated with the attenuation or pathogenicity of each analyzed strain, offering molecular markers that might be associated with virulence or potential vaccine candidates.

Non-reperfused ST-elevation myocardial infarction: notions from a low-to-middle-income country / Infarto de miocardio con elevación del ST no reperfundido: nociones de un país de ingresos bajos a medios

Abstract Objective: The objective of the study was to analyze the differences between survivors and non-survivors with non-reperfused ST-segment elevation myocardial infarction (STEMI) and to identify the predictors of in-hospital mortality. Methods: A retrospective cohort study included non-reperfused STEMI patients from October 2005 to August 2020. Patients were classified into survivors and non-survivors. We compared patient characteristics, treatments, and outcomes among the groups and identified factors associated with in-hospital mortality. Results: We included 2442 patients with non-reperfused STEMI and we found a mortality of 12.7% versus 7.2% in reperfused STEMI. The main reason for non-reperfusion was delayed presentation (96.1%). Non-survivors were older, more often women, and had diabetes, hypertension, or atrial fibrillation. The left main coronary disease was more frequent in non-survivors as well as three-vessel disease. Non-survivors developed more in-hospital heart failure, reinfarction, atrioventricular block, bleeding, stroke, and death. The main predictors for in-hospital mortality were renal dysfunction (HR 3.41), systolic blood pressure < 100 mmHg (HR 2.26), and left ventricle ejection fraction < 40% (HR 1.97). Conclusion: Mortality and adverse outcomes occur more frequently in non-reperfused STEMI. Non-survivors tend to be older, with more comorbidities, and have more adverse in-hospital outcomes.

Resumen Objetivo: Analizar las diferencias entre los sobrevivientes y no sobrevivientes con infarto agudo de miocardio no reperfundido y conocer los predictores de mortalidad intrahospitalaria. Métodos: Estudio de cohorte retrospectiva que incluyó pacientes con infarto agudo de miocardio no reperfundido de octubre de 2005 a agosto de 2020. Se clasificaron los pacientes de acuerdo a su estado de sobrevida y se compararon las características clínicas, tratamientos y desenlaces para poder identificar los predictores de mortalidad intrahospitalaria. Resultados: Se incluyeron 2442 pacientes con infarto agudo de miocardio no reperfundido, en los que se encontró una mortalidad de 12.7% vs 7.2% los que si recibieron tratamiento de reperfusión. La principal razón para no recibir tratamiento de reperfusión fue el retraso en la atención médica (96.1%). Los no sobrevivientes tuvieron mayor edad, fueron mujeres y tuvieron mayor frecuencia de diabetes, hipertensión y fibrilación atrial. El tronco de la coronaria izquierda y la enfermedad trivascular fueron más frecuentes en los que no sobrevivieron. Los pacientes que no sobrevivieron desarrollaron más insuficiencia cardiaca, reinfarto, bloqueo atrioventricular, sangrados, evento vascular cerebral y muerte. Los principales predictores de mortalidad intrahospitalaria fueron: insuficiencia renal (HR 3.41), tensión arterial sistólica al ingreso < 100 mmHg (HR 2.26) y fracción de eyección del ventrículo izquierdo < 40% (HR 1.97). Conclusiones: Los pacientes con infarto de miocardio no reperfundido tienen mayor mortalidad y desenlaces adversos. Los no sobrevivientes fueron mayores, con más comorbilidades y desarrollaron más desenlaces adversos intrahospitalarios.

Non-reperfused ST-elevation myocardial infarction: notions from a low-to-middle-income country.

OBJECTIVE: The objective of the study was to analyze the differences between survivors and non-survivors with non-reperfused ST-segment elevation myocardial infarction (STEMI) and to identify the predictors of in-hospital mortality. METHODS: A retrospective cohort study included non-reperfused STEMI patients from October 2005 to August 2020. Patients were classified into survivors and non-survivors. We compared patient characteristics, treatments, and outcomes among the groups and identified factors associated with in-hospital mortality. RESULTS: We included 2442 patients with non-reperfused STEMI and we found a mortality of 12.7% versus 7.2% in reperfused STEMI. The main reason for non-reperfusion was delayed presentation (96.1%). Non-survivors were older, more often women, and had diabetes, hypertension, or atrial fibrillation. The left main coronary disease was more frequent in non-survivors as well as three-vessel disease. Non-survivors developed more in-hospital heart failure, reinfarction, atrioventricular block, bleeding, stroke, and death. The main predictors for in-hospital mortality were renal dysfunction (HR 3.41), systolic blood pressure < 100 mmHg (HR 2.26), and left ventricle ejection fraction < 40% (HR 1.97). CONCLUSION: Mortality and adverse outcomes occur more frequently in non-reperfused STEMI. Non-survivors tend to be older, with more comorbidities, and have more adverse in-hospital outcomes.

OBJETIVO: Analizar las diferencias entre los sobrevivientes y no sobrevivientes con infarto agudo de miocardio no reperfundido y conocer los predictores de mortalidad intrahospitalaria. MÉTODOS: Estudio de cohorte retrospectiva que incluyó pacientes con infarto agudo de miocardio no reperfundido de octubre de 2005 a agosto de 2020. Se clasificaron los pacientes de acuerdo a su estado de sobrevida y se compararon las características clínicas, tratamientos y desenlaces para poder identificar los predictores de mortalidad intrahospitalaria. RESULTADOS: Se incluyeron 2442 pacientes con infarto agudo de miocardio no reperfundido, en los que se encontró una mortalidad de 12.7% vs 7.2% los que si recibieron tratamiento de reperfusión. La principal razón para no recibir tratamiento de reperfusión fue el retraso en la atención médica (96.1%). Los no sobrevivientes tuvieron mayor edad, fueron mujeres y tuvieron mayor frecuencia de diabetes, hipertensión y fibrilación atrial. El tronco de la coronaria izquierda y la enfermedad trivascular fueron más frecuentes en los que no sobrevivieron. Los pacientes que no sobrevivieron desarrollaron más insuficiencia cardiaca, reinfarto, bloqueo atrioventricular, sangrados, evento vascular cerebral y muerte. Los principales predictores de mortalidad intrahospitalaria fueron: insuficiencia renal (HR 3.41), tensión arterial sistólica al ingreso < 100 mmHg (HR 2.26) y fracción de eyección del ventrículo izquierdo < 40% (HR 1.97). CONCLUSIONES: Los pacientes con infarto de miocardio no reperfundido tienen mayor mortalidad y desenlaces adversos. Los no sobrevivientes fueron mayores, con más comorbilidades y desarrollaron más desenlaces adversos intrahospitalarios.

Evaluación de Salud Mental durante la Pandemia por Covid-19, con App de Bienestar Mexicana / Evaluation of Mental Health during the COVID-19 Pandemic with a Mental Health App in Mexico

Resumen Antecedentes. La inteligencia artificial (IA) simula los procesos cognitivos transducidos a sistemas informáticos; posibilita tomar decisiones con alto nivel de eficacia, ello permite hacer diagnósticos y predicciones clínicas con base en el análisis con algoritmos precisos. Una de las consecuencias de la pandemia por Covid-19 es el daño en salud mental en la población, la IA y la atención a distancia permite el diagnóstico e intervención de un número importante de personas que buscan apps y espacios virtuales de atención psicológica. Objetivo. Identificar los niveles de ansiedad, autoestima, depresión, fuerza personal, ideación suicida, duelo e inteligencia emocional empleando una app de bienestar durante la pandemia por Covid-19. Material y Método. Se trató de un diseño no probabilístico, no experimental, transversal, descriptivo, cuantitativo y comparativo. Se trató de una n= 30,466 mexicanos de todos los estados del país, usuarios de la aplicación de bienestar psicológico y salud mental Jenny Mindful, que respondieron los instrumentos ex profesos para esta investigación por convocatoria en la app. Procedimiento: mediante la app se envió invitación abierta para participar en la investigación de salud mental durante la pandemia por Covid-19, que incluía los instrumentos a contestar, objetivos, y las indicaciones, del 6 de febrero de 2020 al 3 de mayo de 2021. La app sólo arroja los resultados de los instrumentos contestados, identificando al usuario, el género, la edad; y en caso de los adultos, el rango de salario, la actividad laboral, la empresa de trabajo y el área. Resultados. Del total de los usuarios de la app que participaron, el 83.6% fueron mujeres; el 23% fueron adolescentes, el 45% adultos emergentes, el 31% adultos, y el 1% > 49 años de edad. Se encontraron niveles altos en la población con ansiedad, depresión, estrés e ideación suicida y duelo, con diferencias significativas mayores en mujeres, adolescentes y adultos emergentes; la autoestima con puntuaciones más altas en el grupo de mayores a 49 años. Fuerza personal e inteligencia emocional, factores ambos protectores, tuvieron significancia estadística a favor de adultos, mayores a 49 años, y puntuaciones bajas en el grupo de adolescentes. Conclusiones. Mediante la aplicación de instrumentos de salud mental con una app de bienestar psicológico, se pudo seleccionar a una n elevada de participantes de diferentes grupos etarios, identificando puntuaciones altas de ansiedad, depresión, e ideación suicida en niveles de riesgo, y con diferencias significativas en adolescentes, adultos emergentes, y mujeres. Los adultos mayores de 49 años tuvieron puntuaciones positivas en Fuerza personal e Inteligencia emocional.

Abstract Background. Artificial intelligence (AI) simulates cognitive processes transduced to computer systems. It allows making decisions with a high level of effectiveness, this permit making diagnoses and clinical predictions based on the algorithms. One of the consequences of Covid-19 disease is the damage to mental health in the population. AI and remote care allow the diagnosis and intervention of a significant number of people who are looking for apps and virtual spaces for psychological care. Objective. To identify the levels of anxiety, self-esteem, depression, personal strength, suicidal ideation, grief and emotional intelligence by means of a well-being app during the Covid-19 pandemic. Material and Methods. It was a non-probabilistic, non-experimental, cross-sectional, descriptive, quantitative and comparative design. Procedure. Through the app, an open invitation was sent to participate in mental health research during the Covid-19 pandemic, which included the instruments to be answered, objectives, and indications, from February six of 2020 to May Three of 2021. The app returns the results of the answered instruments, identifying the user, gender, age, and in the case of adults, the salary range, the work activity, the work company and the work area. Results. Of the total app users who participated, 83.6% were women; 23% were adolescents, 45% emerging adults, 31% adults, and 1% > 49 years of age. High levels of anxiety, depression, stress and suicidal ideation and grief were found in the population, with significant differences greater in women, adolescents, and emerging adults; self-esteem with higher scores in the group older than 49 years. Personal strength and emotional intelligence, both protective factors, had statistical significance in favor of adults, older than 49 years, and low scores in the group of adolescents. Conclusions. With the application of mental health instruments with a psychological well-being app, it was possible to select a high n of participants from different age groups, identifying high scores for anxiety, depression, and suicidal ideation at risk levels, and with significant differences in adolescents, emerging adults, and women. Those over 49 years of age had positive scores on Personal Strength and Emotional Intelligence.

Draft Genome Sequences of Mexican Babesia bovis Virulent and Attenuated Strains.

Babesia bovis, a tick-borne intraerythrocytic protozoan parasite that belongs to the phylum Apicomplexa, is one of the etiological agents of bovine babesiosis, a highly prevalent disease in tropical and subtropical countries that causes significant morbidity and deaths in cattle. This report presents the draft genome sequences of attenuated and virulent B. bovis strains of Mexican origin.

Gender differences in cardiology professionals: A Latin American Survey.

BACKGROUND: Gender-based differences among cardiology professionals have been reported in North America and Europe. However, the perspective of Latin American cardiologists remains unexplored. OBJECTIVES: The objectives of the study were to analyze the gender gap perspective among cardiologists from Latin America. METHODS: A cross-sectional study using an online survey directed to Latin American cardiologists from five different cardiology societies. The survey included questions on demographic data, professional development in the field of cardiology, and perceived barriers in clinical practice. RESULTS: A total of 240 professionals were surveyed, of which 41.7% were women (100) and 58.3% were men (140). The majority of women tend to work in the subfields of clinical cardiology and cardiovascular imaging. Women were underrepresented as heads of departments, earn less, and report less work satisfaction than men. The barriers that female cardiologists face at their workplace include labor discrimination, sexual harassment, family-related concerns, and lack of career development. CONCLUSIONS: The survey points toward the prevalence of a gender gap among cardiologists in Latin America, which is primarily driven by labor discrimination, sexual harassment, family-related concerns, and lack of career development among female cardiologists. Actions aimed at addressing this issue should be considered by different parties.

ANTECEDENTES: Existen diferencias de género entre los profesionales en cardiología en Europa y Norteamérica. La perspectiva de este suceso en América Latina permanece inexplorado. OBJECTIVOS: Analizar la perspectiva de la diferencia de género entre cardiólogos en América Latina. METODOS: Estudio transversal en el que se usó un cuestionario en línea dirigido a profesionales en cardiología en América Latina. El cuestionario incluía datos demográficos, desarrollo profesional en el campo de la campo de la cardiología y la percepción de las barreras en la práctica clínica. RESULTADOS: un total de 240 profesionales fueron analizados, de los cuales 41.7% (100) fueron mujeres y 58.3% (140) fueron hombres. La mayoría de las mujeres suelen trabajar en el área de imagen cardiovascular. Se encontró subrepresentación del género femenino en jefaturas de departamento, tienen un menor salario y reportan menor satisfacción laboral en comparación con los hombres. Las barreas que enfrentan en su lugar de trabajo fueron discriminación laboral, acoso sexual y falta de desarrollo profesional. CONCLUSIONES: El cuestionario señala la prevalencia de la diferencia de género en América Latina, principalmente por discriminación laboral, acoso sexual y falta de desarrollo profesional. Se necesita tomar acciones interinstitucionales que vayan dirigidas a reducir y eliminar esta brecha.

A Case of Transient Mitral Regurgitation: Not Everything Is Always What It Seems.

Mitral regurgitation (MR) is a common form of valvular heart disease that is associated with significant morbidity and mortality. MR can be broadly classified into 2 different categories: primary and secondary MR. Primary MR usually is caused by leaflet abnormalities, whereas secondary MR is a chronic disease secondary to geometric distortion of both the annulus and subvalvular apparatus because of left ventricular remodeling. Without acute changes in loading conditions, myocardial blood flow, or rhythm disturbances, functional MR typically is not transient. In this E-Challenge, the authors show a transient and completely reversible acute and severe form of functional MR with the use of multimodal echocardiography.

Gerbode defect or left ventricular to right atrial shunt. Case report and literature review / Defecto tipo Gerbode o comunicación entre el ventrículo izquierdo y la aurícula derecha. Reporte de un caso y revisión de la literatura

Gerbode defect is a communication from the left ventricle to right atrium and it could be categorized in congenital or acquired. It is a rare condition that can represent as much as 0.08% of all septal defects. Those acquired defects can be associated to endocarditis and after valvular surgery. The objective is to report a case of Gerbode atria-ventricular septal defect in Instituto Nacional de Cardiología Ignacio Chavez. The present case is about a 36 years old male patient with a typical presentation of mitral regurgitation, the echocardiogram reports a perforation in the anterior mitral leaflet and a Gerbode ventricular septal defect, that represents the heterogeneity of the clinical presentation of this pathology, also we show the findings in imaging studies that contributed to diagnosis and its surgical resolution. Gerbode defect is an uncommon pathology, many times associated to other cardiovascular entity, difficulting diagnose. It requires image studies and a complete presurgical evaluation in order to achieve opportune diagnosis.

El defecto tipo Gerbode es una comunicación del ventrículo izquierdo a la aurícula derecha, que puede clasificarse como congénita o adquirida. Es una condición rara que puede representar hasta el 0.08% de los defectos septales congénitos. Los defectos adquiridos pueden asociarse a endocarditis y presentarse también posterior a cambios valvulares. El objetivo es reportar un caso de comunicación interventricular de Gerbode en el Instituto Nacional de Cardiología. Paciente varón, de 36 años, con presentación clínica típica de insuficiencia mitral, ecocardiografía con hallazgo de rotura de la valva anterior de la válvula mitral y comunicación interventricular tipo Gerbode. Se ponen de manifiesto la heterogeneidad clínica con la que se presenta esta patología y los hallazgos de imagen que contribuyen al diagnóstico y su resolución quirúrgica. La comunicación interventricular tipo Gerbode es una patología infrecuente, muchas veces asociada a otra afección cardiovascular, lo que la hace de difícil diagnóstico. Se requieren estudios de imagen y una evaluación preoperatoria completa para su detección oportuna.

Gender differences in mortality in patients with ST-segment elevation myocardial infarction / Diferencias de género en la mortalidad en pacientes con infarto de miocardio con elevación del segmento ST

Abstract Objective: Women with ST-segment elevation myocardial infarction (STEMI) have worst outcomes than men. The objective of the study was to determine gender differences in mortality in patients with STEMI. Methods: Cohort study including patients with STEMI. We recorded demographic and clinical data, laboratory tests, and in-hospital mortality in patients who underwent primary angioplasty and pharmacoinvasive strategy. Kaplan-Meier analysis was used to assess mortality differences between both genders. Results: A total of 340 patients were analyzed, 296 males and 44 females. Mean age of the female group was 64.3 ± 12.3 years. About 98% of females were among Killip-Kimball Class I-II. They had higher risk scores compared to man, longer ischemic time and first medical contact with a difference in comparison to man of 47 and 60 min, respectively. Mortality was 9.1% (4) in the female group. Conclusions: Although the proportion of women had higher mortality than man, we did not found any difference with statistical significance probably due to the lack of representation. We need more awareness in the female population about STEMI, since longer first medical contact time and longer total ischemic time might be one possible explanation of a higher mortality.

Resumen Objetivo: Las mujeres con infarto agudo al miocardio con elevación del segmento ST (SICA CEST) tienen peor pronóstico que los hombres. El objetivo fue determinar las diferencias de mortalidad en género en pacientes con SICA CEST. Metodos: Estudio de cohorte de pacientes con SICA CEST. Se recolectaron datos demográficos, clínicos, de laboratorio y mortalidad intrahospitalaria. Se realizó un análisis de Kaplan-Meier para valorar la mortalidad y determinar diferencias de género. Resultados: Se analizaron 340 pacientes, 296 hombres y 44 mujeres. Se observó que las mujeres tuvieron mayores puntajes en los scores de riesgo, mayor tiempo de primer contacto y tiempo total de isquemia encontrando una diferencia con el grupo de hombres de 47 y 60 minutos respectivamente. La mortalidad intrahospitalaria fue de 9.1% (4) sin diferencia estadísticamente significativa en comparación con los hombres. Conclusiones: Aunque la proporción de mujeres tuvo mayor mortalidad no se encontró diferencia estadísticamente significativa en comparación con los hombres probablemente por el tamaño de la muestra debido a baja representación del grupo femenino. Se necesita mayor conciencia en relación al infarto en el grupo de mujeres, ya que mayor tiempo de primer contacto y mayor tiempo total de isquemia pueden ser una posible explicación de una mayor mortalidad.

[Feminist precursors of mutual support groups in the mad movement: a historical-critical analysis]. / Antecedentes feministas de los grupos de apoyo mutuo en el movimiento loco: un análisis histórico-crítico.

Mutual support groups are one of the most important collective actions in the psychiatric survivors movement or mad movement. Among its precursors, different proposals from social movements and community perspectives on collective health have been mainly well-known. In this article we carry out a historical overview of their antecedents, pointing out different actions from the Women's Liberation Movement and the Women's Health Movement. From this, we perform a critical analysis considering three axes to understand the emergence of collective actions in mental health: personal experience in relation to the sociopolitical structure; the construction of political subjects in this field; and power relationships in the management of madness and psychological discomfort. We show how mutual support groups, in the context of the mad movement, give continuity to the trajectories of collective and feminist health actions, and are positioned as tools for the creation of political processes in different sociocultural contexts.

Los grupos de apoyo mutuo son una de las acciones colectivas más presentes en el movimiento de salud mental en primera persona o movimiento loco. Entre sus precursores se han destacado, principalmente, distintas propuestas de movimientos sociales y de perspectivas comunitarias y colectivas en salud. En este artículo realizamos un recorrido histórico señalando, como antecedentes, diferentes acciones del movimiento de liberación de las mujeres y el movimiento de salud de las mujeres. A partir de dicho recorrido, realizamos un análisis crítico considerando tres ejes para comprender la emergencia de acciones colectivas en salud mental: la experiencia personal en relación con lo sociopolítico; la construcción de sujetos políticos y de conocimiento; y las relaciones de poder en la gestión de la locura y el malestar psíquico. Mostramos cómo los grupos de apoyo mutuo, en el contexto del movimiento loco, dan continuidad a las trayectorias de gestión colectiva y feminista de la salud, y se posicionan como herramientas para la creación de procesos políticos en distintos contextos socioculturales.

Demographic description and outcomes of a metropolitan network for myocardial infarction treatment / Descripción demográfica y desenlaces de una red metropolitana de atención para el infarto agudo de miocardio

Abstract Objective: The objective of the study was to describe the myocardial infarction treatment network and compare in-hospital mortality in patients undergoing either primary angioplasty or pharmacoinvasive strategy in Mexico City and a broad metropolitan area. Methods: Cohort study including patients with ST-elevation myocardial infarction. We recorded demographic and clinical data, laboratory tests and in-hospital mortality in patients that underwent primary angioplasty and pharmacoinvasive strategy. Kaplan-Meier analysis was used to assess mortality and Cox-regression assessed mortality risk factors. Results: Three hundred forty patients from a network of 60 hospitals and 9 states were analyzed. Of the total population, 166 were treated with pharmacoinvasive strategy and 174 with primary angioplasty. Door to thrombolytic time was 54 min and door to wire crossing time was 72.5 min; no differences in total ischemia time were demonstrated. No differences for in-hospital mortality (6.3% vs. 5.4%, p = 0.49) were found when comparing pharmacoinvasive and primary angioplasty groups. The main predictors for in-hospital mortality were: glucose > 180 mg/dl (HR 3.73), total ischemia time > 420 min (HR 3.18), heart rate > 90 bpm (HR 5.46), Killip and Kimball > II (HR 11.03), and left ventricle ejection fraction < 40% (HR 3.21). Conclusions: This myocardial infarction network covers a large area and constitutes one of the biggest in the world. There were no differences regarding in-hospital mortality between pharmacoinvasive strategy and primary angioplasty. Pharmacoinvasive strategy is an effective and safe option for prompt reperfusion in Mexico.

Resumen Objetivo: Describir la red de atención de infarto agudo de miocardio y comparar los desenlaces intrahospitalarios en pacientes tratados con angioplastía coronaria o estrategia farmacoinvasiva en la Ciudad de México y su área metropolitana. Métodos: Estudio de cohorte que incluyó pacientes con infarto agudo de miocardio con elevación del segmento ST. Se recabaron datos demográficos y clínicos, así como estudios de laboratorio y mortalidad intrahospitalaria en los pacientes que fueron tratados con angioplastía coronaria o estrategia farmacoinvasiva. Se realizó un análisis de Kaplan-Meier para describir la mortalidad y un modelo de regresión de Cox para evaluar los factores asociados a mortalidad. Resultados: Se analizaron 340 pacientes provenientes de una red compuesta por 60 hospitales. Del total de la población, 166 fueron tratados con estrategia farmacoinvasiva y 174 con angioplastía primaria. El tiempo puerta-aguja fue 54 min. y el tiempo puerta-dispositivo de 72.5 min.; no se encontraron diferencias en el tiempo total de isquemia. Además, no existieron diferencias en la mortalidad intrahospitalaria (6.3% vs. 5.4%, p = 0.49) al comparar la estrategia farmacoinvasiva y la angioplastía primaria. Los principales predictores de mortalidad intrahospitalaria fueron: glucosa > 180 mg/dl (HR 3.73), tiempo total de isquemia > 420 min. (HR 3.18), frecuencia cardiaca > 90 lpm (HR 5.46), Killip and Kimball > II (HR 11.03) y fracción de eyección < 40% (HR 3.21). Conclusiones: En esta red de atención al infarto agudo de miocardio no se encontraron diferencias en la mortalidad intrahospitalaria entre la estrategia farmacoinvasiva y la angioplastia primaria. La estrategia farmacoinvasiva puede ser una alternativa efectiva y segura para lograr reperfusión adecuada en México.

A Comparative Genomic Study of Attenuated and Virulent Strains of Babesia bigemina.

Cattle babesiosis is a socio-economically important tick-borne disease caused by Apicomplexa protozoa of the genus Babesia that are obligate intraerythrocytic parasites. The pathogenicity of Babesia parasites for cattle is determined by the interaction with the host immune system and the presence of the parasite's virulence genes. A Babesia bigemina strain that has been maintained under a microaerophilic stationary phase in in vitro culture conditions for several years in the laboratory lost virulence for the bovine host and the capacity for being transmitted by the tick vector. In this study, we compared the virulome of the in vitro culture attenuated Babesia bigemina strain (S) and the virulent tick transmitted parental Mexican B. bigemina strain (M). Preliminary results obtained by using the Basic Local Alignment Search Tool (BLAST) showed that out of 27 virulence genes described and analyzed in the B. bigemina virulent tick transmitted strain, only five were fully identified in the attenuated laboratory strain. In all cases, the identity and coverture of the identified genes of the wildtype strain were higher than those of the laboratory strain. This finding is putatively associated with the continuous partial loss of virulence genes in the laboratory strain after several passages of the parasite population under optimal in vitro growth conditions. The loss of virulence factors might be reflected in the absence of symptoms of the disease in cattle inoculated with the attenuated strain despite the presence of infection in the bovine host cells.

Demographic description and outcomes of a metropolitan network for myocardial infarction treatment.

OBJECTIVE: The objective of the study was to describe the myocardial infarction treatment network and compare in-hospital mortality in patients undergoing either primary angioplasty or pharmacoinvasive strategy in Mexico City and a broad metropolitan area. METHODS: Cohort study including patients with ST-elevation myocardial infarction. We recorded demographic and clinical data, laboratory tests and in-hospital mortality in patients that underwent primary angioplasty and pharmacoinvasive strategy. Kaplan-Meier analysis was used to assess mortality and Cox-regression assessed mortality risk factors. RESULTS: Three hundred forty patients from a network of 60 hospitals and 9 states were analyzed. Of the total population, 166 were treated with pharmacoinvasive strategy and 174 with primary angioplasty. Door to thrombolytic time was 54 min and door to wire crossing time was 72.5 min; no differences in total ischemia time were demonstrated. No differences for in-hospital mortality (6.3% vs. 5.4%, p = 0.49) were found when comparing pharmacoinvasive and primary angioplasty groups. The main predictors for in-hospital mortality were: glucose > 180 mg/dl (HR 3.73), total ischemia time > 420 min (HR 3.18), heart rate > 90 bpm (HR 5.46), Killip and Kimball > II (HR 11.03), and left ventricle ejection fraction < 40% (HR 3.21). CONCLUSIONS: This myocardial infarction network covers a large area and constitutes one of the biggest in the world. There were no differences regarding in-hospital mortality between pharmacoinvasive strategy and primary angioplasty. Pharmacoinvasive strategy is an effective and safe option for prompt reperfusion in Mexico.

[¿Cómo tratar la hipertensión arterial sistémica? Estrategias de tratamiento actuales]. / How to treat hypertension? Current management strategies

Hypertension is a disease that affects almost half of the population. Its complex pathophysiology, mainly affecting the renal, hormonal, cardiovascular and neurological systems, has allowed us to have different pharmacological strategies to treat each of these systems and thus regulate blood pressure. The American Heart Association in 2017, the European Society of Cardiology in 2018, and the American Society of Hypertension in 2020 published their recommendations for the diagnosis, monitoring and treatment of arterial hypertension. The definition of normal blood pressure or hypertension varies according to each guideline. Recommendations on lifestyle and pharmacological therapy are very similar in the guidelines. They recommend blockers of the renin-angiotensin system, calcium antagonists and thiazides, and only in selected cases the use of mineralocorticoid receptor antagonist or beta-blockers.

La hipertensión arterial sistémica es una enfermedad que afecta casi a la mitad de la población. Su compleja fisiopatología, que afecta principalmente a los sistemas renal, hormonal, cardiovascular y neurológico, ha permitido tener diferentes estrategias farmacológicas para tratar cada uno de esos sistemas y así regular la tensión arterial. La American Heart Association en el 2017, la European Society of Cardiology en el 2018 y, por último, la International Society of Hypertension en el 2020, publicaron recomendaciones para el diagnóstico, monitoreo y tratamiento de la hipertensión arterial. La definición de tensión arterial normal o hipertensión varía de acuerdo con cada guía. Las recomendaciones en los cambios del estilo de vida son muy similares, al igual que el tratamiento farmacológico mediante inhibidores del sistema renina-angiotensina, antagonistas de canales de calcio y diuréticos tiazídicos y solo en casos seleccionados el uso de antagonistas de la aldosterona o betabloqueadores.

Infected thrombus in a Fontan circulation.

The Fontan operation was introduced in 1968 as a palliative treatment for patients with univentricular heart physiology. Natural history and outcomes are poor. By 10 years after Fontan operation, most patients will develop any complication such as tachyarrhythmias, any spectrum of Fontan-associated liver disease, protein-losing enteropathy, heart failure, thrombosis, and infective endocarditis among others. Echocardiography and magnetic resonance imaging (MRI) are the first-line diagnostic tools for detecting such complications. Clinical and imaging follow-up are a mainstay for the evaluation of this patients.

Perspectivas y luchas antirracistas en el Movimiento Loco y los Estudios Locos: una revisión / Anti-racist Perspectives and Struggles in the Mad Movement and Mad Studies: a Review

El objetivo de este estudio es describir, a partir de una revisión bibliográfica, tres líneas temá-ticas desde perspectivas descoloniales sobre algunos debates entre el movimiento locoy los movimientos antirracistas. La primera línea aborda de manera crítica la reproducción del ra-cismo en la definición histórica y hegemónica de la “salud mental” y la “enfermedad mental”. La segunda línea analiza la invisibilización de lógicas racistas y colonial/modernas dentro del propio movimiento loco, en los procesos de construcción de identidades y sujetos de referen-cia. La tercera presenta debates sobre el uso del término “descolonización” dentro del mismo movimiento. La conclusión del análisis es que, debido a la distancia histórica que ha marcado la articulación entre ambos movimientos, es necesario repensar las posibilidades, identidades y marcos teóricos de resistencias comunes. (AU)

The objective of this study is to describe, based on a bibliographic review, three thematic lines with decolonial perspectives about some debates between the mad movement and anti-racist movements. The first line critically addresses the reproduction of racism in the histori-cal and hegemonic definition of “mental health” and “mental illness”. The second line analyz-es the invisibility of racist and colonialist logics within the Mad movement itself, in the pro-cesses of construction of identities and subjects. The third presents debates on the use of the term “decolonization” within the same movement. The conclusion of the analysis is that, due to the historical distance that has marked the articulation between both movements, it is necessary to rethink the possibilities, identities and theoretical frameworks of common resistance. (AU)

Antecedentes feministas de los grupos de apoyo mutuo en el movimiento loco: un análisis histórico-crítico / Feminist precursors of mutual support groups in the mad movement: a historical-critical analysis

RESUMEN Los grupos de apoyo mutuo son una de las acciones colectivas más presentes en el movimiento de salud mental en primera persona o movimiento loco. Entre sus precursores se han destacado, principalmente, distintas propuestas de movimientos sociales y de perspectivas comunitarias y colectivas en salud. En este artículo realizamos un recorrido histórico señalando, como antecedentes, diferentes acciones del movimiento de liberación de las mujeres y el movimiento de salud de las mujeres. A partir de dicho recorrido, realizamos un análisis crítico considerando tres ejes para comprender la emergencia de acciones colectivas en salud mental: la experiencia personal en relación con lo sociopolítico; la construcción de sujetos políticos y de conocimiento; y las relaciones de poder en la gestión de la locura y el malestar psíquico. Mostramos cómo los grupos de apoyo mutuo, en el contexto del movimiento loco, dan continuidad a las trayectorias de gestión colectiva y feminista de la salud, y se posicionan como herramientas para la creación de procesos políticos en distintos contextos socioculturales.

ABSTRACT Mutual support groups are one of the most important collective actions in the psychiatric survivors movement or mad movement. Among its precursors, different proposals from social movements and community perspectives on collective health have been mainly well-known. In this article we carry out a historical overview of their antecedents, pointing out different actions from the Women's Liberation Movement and the Women's Health Movement. From this, we perform a critical analysis considering three axes to understand the emergence of collective actions in mental health: personal experience in relation to the sociopolitical structure; the construction of political subjects in this field; and power relationships in the management of madness and psychological discomfort. We show how mutual support groups, in the context of the mad movement, give continuity to the trajectories of collective and feminist health actions, and are positioned as tools for the creation of political processes in different sociocultural contexts.

Gender differences in mortality in patients with ST-segment elevation myocardial infarction / Diferencias de género en la mortalidad en pacientes con infarto de miocardio con elevación del segmento ST

BACKGROUND: Women with ST-segment elevation myocardial infarction (STEMI) have worst outcomes than men. OBJECTIVE: The objective of the study was to determine gender differences in mortality in patients with STEMI. METHODS: Cohort study including patients with STEMI. We recorded demographic and clinical data, laboratory tests, and in-hospital mortality in patients who underwent primary angioplasty and pharmacoinvasive strategy. Kaplan-Meier analysis was used to assess mortality differences between both genders. RESULTS: A total of 340 patients were analyzed, 296 males and 44 females. Mean age of the female group was 64.3 ± 12.3 years. About 98% of females were among Killip-Kimball Class I-II. They had higher risk scores compared to man, longer ischemic time and first medical contact with a difference in comparison to man of 47 and 60 min, respectively. Mortality was 9.1% (4) in the female group. CONCLUSIONS: Although the proportion of women had higher mortality than man, we did not found any difference with statistical significance probably due to the lack of representation. We need more awareness in the female population about STEMI, since longer first medical contact time and longer total ischemic time might be one possible explanation of a higher mortality.

Evaluation of pharmacoinvasive strategy versus percutaneous coronary intervention in patients with acute myocardial infarction with ST-segment elevation at the National Institute of Cardiology (PHASE-MX).

Objective: The objective of PHASE-MX registry is to validate the efficacy and safety of the pharmacoinvasive strategy in comparison with percutaneous coronary intervention (PCI) in patients with acute myocardial infarction with ST segment elevation (STEMI) in a metropolitan region of Mexico. The primary outcome will consist of the composite of cardiovascular death, re-infarction, stroke and cardiogenic shock. Methods: The PHASE-MX registry will include a prospective cohort of patients with STEMI who received reperfusion treatment (mechanical of pharmacological) in the first 12 h after the onset of symptoms. The registry is designed to compare the efficacy and safety of primary PCI and pharmacoinvasive strategy. The simple size was calculated in 344 patients divided into two groups, with an estimated loss rate of 10%. Patients included in the PHASE-MX cohort will be followed for up to one year. Conclusion: In Mexico, only 5 out of 10 patients with STEMI have access to reperfusion therapy. Pharmacoinvasive strategy is takes advantage of the accessibility of fibrinolysis and the effectiveness of PCI. The present research protocol aims to provide information that serves as a link between information derived from controlled clinical trials and records derived from real world experience.

Objetivo: El objetivo del registro PHASE-MX es validar la eficacia y seguridad de la estrategia farmacoinvasiva en comparación con la angioplastia coronaria transluminal percutánea primaria (ACTPp) en pacientes con infarto agudo de miocardio con elevación del segmento ST (IAMCEST) en una región metropolitana de México. El desenlace primario es el compuesto de muerte cardiovascular, reinfarto, accidente vascular cerebral y choque cardiogénico. Métodos: El registro PHASE-MX es una cohorte prospectiva de pacientes con IAMCEST que recibieron tratamiento de reperfusión (mecánico o farmacológico) en las primeras 12 horas desde el inicio de los síntomas, atendidos en el Instituto Nacional de Cardiología Ignacio Chávez. El análisis estadístico se basa en la no inferioridad de la estrategia farmacoinvasiva en comparación con la ACTPp. Se calcula un tamaño de muestra de 344 pacientes divididos en dos grupos (angioplastia primaria y estrategia farmacoinvasiva), considerada una tasa de pérdidas de 10%. Los pacientes incluidos en la cohorte PHASE-MX se seguirán durante un año. Discusión: En México, sólo 5 de cada 10 pacientes con IAMCEST tienen acceso al tratamiento de reperfusión. La estrategia farmacoinvasiva aprovecha la accesibilidad de la fibrinólisis y la efectividad de la ACTPp, por lo que podría resultar el método de elección en el tratamiento del IAMCEST en la mayoría de los casos. El presente protocolo de investigación pretende aportar información que sirva como enlace entre la información derivada de los estudios clínicos controlados y los registros derivados de la experiencia del mundo real.