Avoidant restrictive eating disorder and panic attacks in an adult man: A case report / Trastorno evitativo restrictivo de la ingesta alimentaria y ataques de pánico en un hombre adulto: Reporte de caso

Abstract Avoidant or Restrictive Food Intake Disorder (ARFID) is an eating disorder (ED) not common in adults. In this article we present a clinical case of ARFID in a 37-year-old male patient treated in an ED center in Medellin, Colombia; displaying anxious symptoms that began a year earlier and concomitant weight loss, following a traumatic event causing an overall impairment with that patient. Several medical evaluations/examinations looking for organic causes, were excluded. Interventions were implemented by a psychiatry, a psychotherapist using cognitive-behavior therapy (CBT), and a nutritionist, all in face-to-face modality, which were carried out weekly for the first three months, then biweekly and subsequently quarterly. each lasting approximately 40-60 minutes. After the set of pharmacological interventions and psychotherapy, a great improvement in the functionality of the patient was observed. Improvement was found with respect to eating in public, food variation and panic attacks. In the absence of guidelines, it is important to use standardized and replicable treatments in this population.

Resumen El trastorno evitativo restrictivo de la ingesta (TERIA) es un trastorno alimentario (TCA) raro en adultos. Se presenta el caso de un hombre de 37 años con TERIA y trastorno de pánico atendido en un centro para TCA en Medellín, Colombia, quien presentó un año de síntomas ansiosos y pérdida de peso después de evento traumático, generando disfuncionalidad. Fue evaluada y excluida organicidad. Se realizaron intervenciones por parte de psiquiatría, psicoterapia con enfoque cognitivo conductual y nutrición, todas en modalidad presencial, las cuales se realizaron semanalmente los primeros tres meses, luego quincenalmente y posteriormente trimestralmente. Cada una con una duración de 40-60 minutos aproximadamente por sesión. Posterior al conjunto de intervenciones farmacológicas y psicoterapia, se observó una gran mejoría la funcionalidad del paciente, se encontró mejoría con respecto a comer en público, variación en los alimentos y ataques de panico. Ante la ausencia de guías de manejo de TERIA en adultos es relevante realizar tratamientos estandarizados que puedan ser replicados.

Chronic Bi-Maxillary Osteomyelitis Caused by Actinomycetes in a Patient with Severe COVID-19 / Osteomyelitis bi-maxilar crónica causada por Actinomycetes en un paciente con COVID-19 severo

Abstract Osteomyelitis is defined as the inflammation of the either medullary, cortical, or cancellous bone, including nerves and blood vessels, causing necrosis and bone sequestrum formation; this condition has become a rare pathology, and odontogenic infections are considered the most frequent causal factor. This case shows a patient with bi-maxillary osteomyelitis caused by Actinomyces spp, which was worsened for severe COVID-19 infection. Patient was submitted at surgery as, amplified total bilateral maxillectomy through the surgical technique Weber-Fergusson, and prolonged use of combination of antibiotics, achieved a good recovery. Two years later follow- up, the patient no show imaging or clinical evidence of the infection of osteomyelitis. The present case shows an interesting relationship between a rare infection and its association with COVID-19.

Resumen La osteomielitis se define como la inflamación del hueso medular, cortical o esponjoso, incluyendo nervios y vasos sanguíneos, causando necrosis y formación de secuestro óseo; esta condición es una patología rara, y las infecciones odontogénicas son consideradas como el factor causal más frecuente. En este caso, se muestra un paciente con osteomielitis bi-maxilar causada por Actinomyces spp, la cual empeoró por la infección de COVID-19 severo. El paciente fue sometido a una cirugía, maxilectomía bilateral total amplificada, a través de la técnica quirúrgica de Weber- Fergusson, y el uso prolongado de una combinación de antibióticos, logrando una buena recuperación. A los 2 años de seguimiento, el paciente no mostró evidencia clínica o imagenológica de la infección de osteomielitis. El presente caso muestra una interesante relación entre una infección rara y su asociación con COVID-19.

Elimination of E. faecalis and C. albicans Biofilm: A comparison between single and multiple file systems in an Ex Vivo study

To evaluate whether the WaveOne Gold and Reciproc single file instrumentation systems, are effective in reducing the microbial load of a mixed biofilm and the cleaning of apical third compared to the Twisted File Adaptive system (multiple- file system). Seventy mesial roots of the first and second molars were included and randomly divided into three experimental groups (n=20, n=10 controls). Biofilms were formed inside canals over 31 days. After instrumentation with the unique file systems, WaveOne Gold and Reciproc and the multiple file system Twisted File Adaptive, using 2.25% sodium hypochlorite as an irrigant in all cases, a count of colony forming units was performed using serial dilutions, cleaning of the apical third was evaluated using scanning electron microscopy. Comparisons amongst groups were made by using parametric and non-parametric statistics, according to a normal or non-normal data distribution, respectively. No significant differences in the reduction of the microbial load after employing a single-file system in comparison to the multiple-file system were found; in addition, the cleaning of the apical third was similar for the three different instrumentation systems. The single-file system is equal in effectiveness compared with the multiple-file system in reducing the microbial load.

Evaluar si los sistemas de instrumentación de lima única, como WaveOne Gold y Reciproc son efectivos para reducir la carga microbiana de un biofilm mixto y la limpieza del tercio apical, comparado con los sistemas de limas múltiples, como Twisted File Adaptive. Setenta raíces mesiales de primeros y segundos molares fueron incluidos y divididos de forma aleatoria en tres grupos experimentales (n=20, n=10 controles). El biofilm fue formado en el interior de los conductos durante 31 días. Después se instrumentó con los sistemas de lima única (WaveOne Gold y Reciproc) y el sistema de limas múltiples Twisted File Adaptive, usando hipoclorito de sodio al 2.5% en todos los casos. El conteo de unidades formadoras de colonias se realizó usando diluciones seriales, la limpieza del tercio apical se evaluó empleando el microscopio electrónico de barrido. La comparación entre grupos se realizó con pruebas paramétricas y no paramétricas, de acuerdo con la distribución normal y no normal de los datos, respectivamente. No hubo una diferencia significativa en la reducción de la carga microbiana después de emplear los sistemas de lima única en comparación a los de limas múltiples, además, la limpieza del tercio apical fue similar en los 3 diferentes sistemas de instrumentación. Los sistemas de lima única son igual de efectivos para reducir la carga microbiana comparados con los sistemas de limas múltiples.

Organotin compounds in seafood by ultrasonic assisted extraction and gas chromatography-triple quadrupole tandem mass spectrometry.

Although restricting environmental quality values for organotin compounds (OTs) are set by Directive 2013/39/EU of the European Parliament, marine environment remains being affected due to maritime circulation at global scale. Fish and seafood accumulate OTs, making fish and seafood consumption the main source of OTs in humans. Because of the fish and seafood matrices complexity and the required low limits of detection, a robust and fast procedure for the quantification of OTs in fish and seafood, using ultrasound-assisted extraction and gas chromatography-tandem mass spectrometry, was validated and applied. Detection (2.7 µg Sn kg-1) and quantification (8.0 µg Sn kg-1) limits, repeatability and intermediate precision (<10%), accuracy by analysing ERM®-CE477 Mussel Tissue and analytical recoveries (65-122%) were assessed. Multivariate analysis shown that the matrix effect for some OTs displayed good negative correlation with the fat and protein content. Health risk assessment of OTs intake revealed no serious risk for human consumption.

Metodología para la formación de la competencia prevención de la salud en estudiantes de medicina / A Methodology for the Formation of Health Prevention Competences among Medical Students

Introducción: Hoy día se requiere formar a estudiantes de la carrera de medicina que sean competentes en el cumplimiento de sus funciones en los niveles de atención en salud. Como parte de las funciones que se deben desarrollar en el estudiante de medicina, se deben formar competencias para la prevención de la salud. Objetivo: Proponer una metodología para la formación de la competencia prevención de la salud en estudiantes de medicina durante el trabajo comunitario integral. Métodos: Se realizó un estudio cuantitativo de tipo preexperimental. La población estuvo conformada por 669 estudiantes de tercer año de medicina de la Universidad de Ciencias Médicas de Holguín. De ellos se obtuvo una muestra de 100 estudiantes mediante un muestreo aleatorio simple. Se emplearon la observación directa en el terreno y la Prueba de Rangos con Signos de Wilcoxon para constar la hipótesis de investigación. Resultados: Se aportó la competencia de prevención de la salud y la metodología para su formación en estudiantes de medicina durante el trabajo comunitario integral, así como los principales logros y deficiencias demostrados durante las acciones realizadas en la educación en el trabajo. Conclusiones: La competencia prevención de la salud forma parte del perfil de competencias laborales que singularizan a la formación de un médico general competente. Es de tipo genérica y requiere para su formación de la combinación de acciones instructivas, educativas y desarrolladoras desde las potencialidades del trabajo comunitario integral que realizan los estudiantes como parte del componente laboral de la carrera(AU)

Introduction: Nowadays, it is necessary to train medical students to be competent in the fulfillment of their functions at the healthcare levels. As part of the functions to be developed among medical students, health prevention competences should be developed. Objective: To propose a methodology for the formation of health prevention competences among medical students during comprehensive community work. Methods: A quantitative preexperimental study was carried out. The population consisted of 669 third-year medical students from Universidad de Ciencias Médicas de Holguín. A sample of 100 students was obtained by simple random sampling. Direct observation in the field and the Wilcoxon's signed-ranks test were used to verify the research hypothesis. Results: The health prevention competence and the methodology for its formation among medical students during comprehensive community work were provided, as well as were the main achievements and deficiencies shown during the actions carried out in education at work. Conclusions: The health prevention competence is part of the profile of occupational competences that singularize the training of a competent general practitioner. It is generic and requires. for its formation. the combination of instructive, educational and developmental actions from the potentialities of comprehensive community work performed by students as part of the occupational component of the major(AU)

Multiempleo en salud en provincia de Buenos Aires: estudio transversal de profesiones afectadas al cuidado de pacientes con COVID-19 / Multi-employment in health in the province of Buenos Aires: cross-sectional study of professions involved in COVID-19 patient care

RESUMEN INTRODUCCIÓN La pandemia de COVID-19 expuso el impacto del multiempleo en los servicios de salud. El objetivo de este estudio fue caracterizar el multiempleo en médicos y enfermeros que trabajaron en internación general y cuidados críticos durante la pandemia en la provincia de Buenos Aires. MÉTODOS Se realizó un estudio exploratorio, descriptivo y transversal. Los datos se recolectaron en el primer trimestre de 2021 con una encuesta estructurada anónima autoadministrada mediante muestreo no probabilístico en cadena. RESULTADOS El 96,3% de los médicos y el 68,1% de los enfermeros declararon estar multiempleados. La media de empleos fue 3,1 para médicos (entre 1 y 5) y 1,9 para enfermeros (entre 1 y 3). Los enfermeros declararon trabajos con mayor carga horaria, predominio del empleo público y contratación estable. Los médicos multiempleados manifestaron mayor diversidad en la forma de contratación. En ambas profesiones el multiempleo es motivado principalmente por razones de índole económica. DISCUSIÓN El multiempleo es difícil de medir mediante los registros oficiales. La proporción de multiempleo autorreportado en este estudio supera las cifras comunicadas por las estadísticas e informes oficiales. Aun así, las diferencias halladas entre médicos y enfermeros respecto al número de empleos son coincidentes con estudios previos. El problema del multiempleo requiere ser abordado desde la desprecarización del empleo, con mejoras en las condiciones económicas y de trabajo.

ABSTRACT INTRODUCTION The COVID-19 pandemic exposed the impact of multi-employment in health services. The objective of this study was to characterize multi-employment among physicians and nurses working in general hospitalization and critical care during the pandemic in the province of Buenos Aires. METHODS An exploratory, descriptive, cross-sectional study was conducted. Data were collected in the first quarter of 2021 with a structured anonymous self-administered survey using non-probabilistic chain sampling. RESULTS A total of 96.3% of physicians and 68.1% of nurses reported being multi-employed. The mean number of jobs was 3.1 for physicians (between 1 and 5) and 1.9 for nurses (between 1 and 3). Nurses reported having jobs with longer hours, mostly public and stable employment. Multi-employed physicians reported greater variety in the form of hiring. In both professions, multi-employment is mainly motivated by economic reasons. DISCUSSION Multi-employment is difficult to measure through official records. The proportion of self-reported multiemployment in this study exceeds the figures shown by official statistics and reports. The differences found between physicians and nurses regarding the number of jobs are still consistent with previous studies. The problem of multi-employment needs to be tackled by making employment less precarious, with improvements in economic and working conditions.

Ambiente educacional y bienestar mental de los residentes de posgrados médicos y quirúrgicos en Medellín, Colombia

Introducción: Uno de los momentos más importantes en la vida de un médico ocurre cuando realiza la especialización médica. Este periodo impone estrés y exigencias académicas, lo cual, junto con el ambiente educacional, permite un mayor o menor bienestar mental. El objetivo del estudio es determinar cómo se relacionan el ambiente educacional y el bienestar mental de los residentes de Medicina. Métodos: Estudio transversal analítico en residentes de especialidades clínico-quirúrgicas. El ambiente educacional se evaluó mediante la escala Postgraduate Hospital Educational Envioro-ment Meassure (PHEEM) y el bienestar mental, con la escala de Warwick-Edinburgh (EBMWE). Se determinó la correlación lineal de Pearson. Se tomó el consentimiento informado y se obtuvo la aprobación del comité de ética universitario. Resultados: Integraron la población de estudio 131 estudiantes, el 43,8% varones, con una mediana de edad de 28 [intervalo intercuartílico, 4] arios. El 87,9% de los residentes respondieron a la encuesta. Hubo un 65,9% de posgrados médicos y un 34,1% de quirúrgicos. La puntuación media en la PHEEM fue de 107,96 ± 18,88; en la subescala de emociones positivas, 29,32 ± 5,18 y en funcionamiento positivo, 23,61 ± 3,57, con una media total de bienestar mental de 52,96 ± 8,44. Se encontró una moderada correlación positiva entre puntuación total de la PHEEM y cada una de las 2 subescalas de bienestar mental (p <0,001). Conclusiones: Se encontró una correlación positiva entre una mejor percepción del ambiente educacional y el bienestar mental de los residentes de especialidades clínicas-quirúrgicas con mayor bienestar mental

Introduction: One of the most important moments in a doctor's life occurs when they do a medical residency. This period imposes stress and academic demands, which, together with the educational environment, allows for greater or lesser mental wellbeing. The objective of this study was to determine how the educational environment and mental wellbeing of medical residents are related. Methods: Analytical cross-sectional study, in residents of clinical-surgical specialties. The educational environment was assessed using the Postgraduate Hospital Educational Environment Measure (PHEEM), and mental wellbeing was assessed with the Warwick-Edinburgh Mental Wellbeing Scale (WEMWBS). Pearson's linear correlation was determined. Informed consent and approval by the university ethics committee were obtained. Results:The study population comprised 131 students, 43.8% male, with a median age of 28 years (interquartile range 4). In total, 87.9% of residents answered the survey. Of these, 65.9% were doing medical residencies and 34.1% surgical residencies. The mean PHEEM score was 107.96 ± 18.88, the positive emotions subscale was 29.32 ± 5.18 and positive functioning 23.61 ± 3.57, with a mean total mental wellbeing of 52.96 ± 8.44. A positive and moderate correlation was found between the total PHEEM score and each of the two mental wellbeing subscales (p < 0.001). Conclusions: A positive correlation was found between a better perception of the educational environment and mental wellbeing by residents of clinical and surgical specialties with greater mental wellbeing.

Multiparameter single-cell proteomic technologies give new insights into the biology of ovarian tumors.

High-grade serous ovarian cancer (HGSOC) is the most lethal gynecological malignancy. Its diagnosis at advanced stage compounded with its excessive genomic and cellular heterogeneity make curative treatment challenging. Two critical therapeutic challenges to overcome are carboplatin resistance and lack of response to immunotherapy. Carboplatin resistance results from diverse cell autonomous mechanisms which operate in different combinations within and across tumors. The lack of response to immunotherapy is highly likely to be related to an immunosuppressive HGSOC tumor microenvironment which overrides any clinical benefit. Results from a number of studies, mainly using transcriptomics, indicate that the immune tumor microenvironment (iTME) plays a role in carboplatin response. However, in patients receiving treatment, the exact mechanistic details are unclear. During the past decade, multiplex single-cell proteomic technologies have come to the forefront of biomedical research. Mass cytometry or cytometry by time-of-flight, measures up to 60 parameters in single cells that are in suspension. Multiplex cellular imaging technologies allow simultaneous measurement of up to 60 proteins in single cells with spatial resolution and interrogation of cell-cell interactions. This review suggests that functional interplay between cell autonomous responses to carboplatin and the HGSOC immune tumor microenvironment could be clarified through the application of multiplex single-cell proteomic technologies. We conclude that for better clinical care, multiplex single-cell proteomic technologies could be an integral component of multimodal biomarker development that also includes genomics and radiomics. Collection of matched samples from patients before and on treatment will be critical to the success of these efforts.

Hydroxychloroquine safety in Covid-19 vs non-Covid-19 patients: analysis of differences and potential interactions.

BACKGROUND: The use of hydroxychloroquine (HCQ) in the first COVID-19 epidemic wave raised safety concerns. RESEARCH DESIGN AND METHODS: Adverse reactions (ADR) suspected to be induced by HCQ and submitted to the Spanish Pharmacovigilance Database were studied. A disproportionality analysis was performed to determine adverse effects reported in non-Covid and Covid patients. To explore potential drug-drug interactions, Omega (Ω) statistics was calculated. RESULTS: More severe cases were reported when used in COVID-19. Main differences in frequency were observed in hepatobiliary, skin, gastrointestinal, eye, nervous system and heart ADRs. During the COVID-19 pandemic, high disproportionality in reports was found for Torsade de Pointes/QT prolongation with a ROR (-ROR) of 132.8 (76.7); severe hepatotoxicity, 18.7 (14.7); dyslipidaemias, 12.1 (6.1); shock, 9.5 (6.9) and ischemic colitis, 8.9 (2.6). Myopathies, hemolytic disorders and suicidal behavior increased their disproportionality during the pandemic. Disproportionality was observed for neoplasms, hematopoietic cytopaenias and interstitial lung disease in the pre-COVID-19 period. Potential interactions were showed between HCQ and azithromycin, ceftriaxone, lopinavir and tocilizumab. CONCLUSIONS: The use of HCQ during the Covid-19 pandemic changed its ADRs reporting profile. Of particular concern during the pandemic were arrhythmias, hepatotoxicity, severe skin reactions and suicide, but not ocular disorders. Some signals identified would require more detailed analyses.

Sangrado Uterino Anormal: hallazgos ecográficos / Abnormal Uterine Bleeding: ultrasound findings

Describir los hallazgos ecográficos de las pacientes que acudieron por sangrado uterino anormal al servicio de Ginecología y Obstetricia del Hospital Dr. Domingo Luciani durante el período enero 2021 a enero 2022. Métodos: Estudio observacional-descriptivo, de tipo retrospectivo. Muestra no probabilística e intencional, integrada por 99 pacientes. Variables involucradas: edad, raza, paridad, antecedentes personales, ciclo menstrual, duración del período menstrual, fecha última de menstruación, uso de algún medicamento, método anticonceptivo y hallazgos ecográficos. Resultados: Los hallazgos ecográficos evidenciaron diferentes causas que explican el sangrado uterino anormal de las pacientes que integraron la muestra de estudio; las tres más frecuentes fueron: miomatosis uterina, sangrado uterino anormal por leiomioma o por endometrio, sangrado uterino anormal tipo L y tipo E(AU)

Objective: To describe the ultrasound findings ofpatients who came for abnormal uterine bleeding to theGynecology and Obstetrics service of the Dr. Domingo LucianiHospital during the period January 2021 to January 2022.Methods: This was an observational-descriptive, retrospectivestudy. The sample was non-probabilistic and intentional,consisting of 99 patients. The data were collected in an Excelsheet for analysis to determine their percentage frequencyaccording to the variables involved: age, ethnicity, parity,personal history, menstrual cycle, duration of menstrual period,last date of menstruation, use of some medication, contraceptivemethod and ultrasound findings. Results: The ultrasoundfindings showed different causes to explain the abnormal uterinebleeding of the patients who made up the study sample; however,the three most frequent were: uterine myomatosis, sangradouterino anormal tipo L y tipo E(AU)

Preparation and Characterization of Strongly Sulfonated Acid Block and Random Copolymer Membranes for Acetic Acid Esterification with 2-Propanol.

In this paper, we report the synthesis of block and random copolymers of 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS) and methyl methacrylate (MMA), with different AMPS feed ratios. These solution-processable copolymers with strongly sulfonated acid groups resulted in membranes with tunable ion exchange (IEC) and water absorption capacities. AFM images confirmed the microphase separation of PAMPS-b-PMMA-1:1 block copolymer membrane, annealed under the appropriate conditions. The resulting copolymers from the random combination of a 1:1 molar ratio of AMPS and MMA monomers are effective at enhancing the esterification conversion of acetic acid, when compared with a reaction catalyzed by PAMPS-b-PMMA block copolymers and the previously studied catalytic membranes. With the PAMPS-co-PMMA-1:1 membrane, the esterification reaction using acetic acid achieved 85% isopropyl acetate. These results are closely correlated with the increase in IEC (2.63 mmol H+g-1) and the relationship between weight loss (20.3%) and swelling degree (68%) in 2-propanol.

Measuring trogocytosis between ovarian tumor and natural killer cells.

Trogocytosis is an active transport mechanism by which one cell extracts a plasma membrane fragment with embedded molecules from an adjacent cell in a contact-dependent process leading to the acquisition of a new function. Our protocol, which has general applicability, consolidates and optimizes existing protocols while highlighting key experimental variables to demonstrate that natural killer (NK) cells acquire the tetraspanin CD9 by trogocytosis from ovarian tumor cells. For complete details on the use and execution of this protocol, please refer to Gonzalez et al. (2021).

[Health promotion initiatives aimed at young adults. Qualitative study]. / Iniciativas de promoción de la salud destinadas a adultos jóvenes. Estudio cualitativo.

Introduction: Introduction. Health promotion initiatives, even more those promoted by the State, play a fundamental and strategic role in the construction of healthy lifestyles. The objective was to explore from the perspective of a group of young adults from the Autonomous City of Buenos Aires, dimensions and qualitative categories related to health promotion community initiatives with a focus on healthy diet, physical activity, and smoking cessation. Methods: A qualitative phenomenological study were conducted, including sixteen in-depth interviews with people under 40 years of age. Results: Were found and explored that interventions through websites, email, social networks, application- Mobile App (App), calls, text messages (SMS), printed material, or brief advice. The most acceptable interventions were: website, social networks, and the App. The potential use of these interventions would be related by the inclusion of audiovisual elements and personalized messages. Conclusion: The findings indicate that interventions that include social networks, App and web would have greater potential among young adults to promote healthy lifestyles.

Introducción: Las iniciativas de promoción de salud, más aún las impulsadas desde el Estado, juegan un papel fundamental y estratégico en torno a la construcción de estilos de vida saludables. El objetivo fue explorar desde la perspectiva de un grupo de adultos jóvenes de la Ciudad Autónoma de Buenos Aires dimensiones y categorías cualitativas relacionadas a iniciativas comunitarias de promoción de la salud con foco en alimentación saludable, actividad física y cesación tabáquica. Métodos: Se realizó un estudio cualitativo de carácter fenomenológico incluyendo 16 entrevistas en profundidad a personas menores de 40 años. Resultados: Se identificaron y exploraron intervenciones a través de sitios web, correo electrónico, redes sociales, aplicativo-App móvil (App), llamadas, mensajes de texto-SMS, material impreso o asesoría breve. Las intervenciones de mayor aceptabilidad fueron: sitio web, redes sociales y App. El uso potencial de las intervenciones estaría relacionado con la inclusión de elementos audiovisuales y los mensajes personalizados. Conclusión: Nuestros hallazgos indican que las intervenciones que incluyan redes sociales, App y web tendrían mayor potencial para promover estilos de vida saludables entre los adultos jóvenes.

Dilemas de la insuficiencia cardíaca con fracción de eyección preservada / Dilemmas of heart failure with preserved ejection fraction / Dilemas da insuficiência cardíaca com fração de ejeção preservada

La insuficiencia cardíaca con fracción de eyección preservada (ICFEp) y reducida presentan marcadas diferencias. Mientras que la última tiene un algoritmo diagnóstico y terapéutico desde hace años, con guías y fármacos que mejoran su pronóstico, la ICFEp no solo presenta dificultades para llegar al diagnóstico, sino que tampoco hay fármacos que hayan demostrado disminuir la mortalidad. En esta revisión se hace un abordaje amplio de la ICFEp, comenzando por definirla y distinguirla de la disfunción diastólica. Se describe el gold standard para su diagnóstico invasivo y se analizan los scores no invasivos recientemente desarrollados que estiman la probabilidad de tener la enfermedad. A través del análisis de las comorbilidades frecuentemente asociadas, se describen los mecanismos fisiopatológicos implicados. Asimismo, se detallan los fenotipos propuestos para agrupar pacientes y diseñar ensayos clínicos con fármacos que prueben disminuir la mortalidad. Por último, se reseñan las medidas terapéuticas no farmacológicas y farmacológicas recomendadas.

Heart failure with preserved and reduced ejection fraction have significant differences. While the latter has had a diagnostic and therapeutic algorithm for years, with guidelines and drugs that improve its prognosis, heart failure with preserved ejection fraction (HFpEF) not only presents difficulties in reaching a diagnosis, but also there are no drugs that have been proven to be effective in reducing mortality. In this review, a broad approach to HFpEF is made, beginning by defining it and distinguishing it from diastolic dysfunction. The gold standard for its invasive diagnosis is described and recently developed non-invasive scores that estimate the probability of having the disease are analyzed. Through the analysis of the frequently associated comorbidities, the pathophysiological mechanisms involved are described. Likewise, the phenotypes proposed to group patients and design clinical trials with drugs that try to reduce mortality are detailed. Finally, the recommended non-pharmacological and pharmacological therapeutic measures are outlined.

A insuficiência cardíaca com fração de ejeção preservada (ICFEp) e reduzida apresentam diferenças marcantes. Enquanto esta última conta com um algoritmo diagnóstico e terapêutico há anos, com diretrizes e medicamentos que melhoram seu prognóstico, a ICFEp não só apresenta dificuldades no diagnóstico, mas nenhum há medicamentos que tenham demonstrado reduzir a mortalidade. Nesta revisão, é feita uma abordagem ampla da ICFEp, começando por defini-la e distinguindo-a da disfunção diastólica. O padrão ouro para seu diagnóstico invasivo é descrito e são analisados os escores não invasivos recentemente desenvolvidos que estimam a probabilidade de ter a doença. Através da análise de comorbidades frequentemente associadas, são descritos os mecanismos fisiopatológicos envolvidos. Da mesma forma, são detalhados os fenótipos propostos para agrupar pacientes e desenhar ensaios clínicos com medicamentos que podem ser mostradas para reduzir a mortalidade. Por fim, são delineadas as medidas terapêuticas não farmacológicas e farmacológicas recomendadas.

Effects of Antioxidants on Pain Perception in Patients with Fibromyalgia-A Systematic Review.

In recent years, antioxidant supplements have become popular to counteract the effects of oxidative stress in fibromyalgia and one of its most distressing symptoms, pain. The aim of this systematic review was to summarize the effects of antioxidant supplementation on pain levels perceived by patients diagnosed with fibromyalgia. The words used respected the medical search terms related to our objective including antioxidants, fibromyalgia, pain, and supplementation. Seventeen relevant articles were identified within Medline (PubMed), Scopus, Web of Science (WOS), the Cochrane Database of Systematic Review, and the Cochrane Central Register of Controlled Trials. This review found that antioxidant supplementation is efficient in reducing pain in nine of the studies reviewed. Studies with a duration of supplementation of at least 6 weeks showed a benefit on pain perception in 80% of the patients included in these studies. The benefits shown by vitamins and coenzyme Q10 are remarkable. Further research is needed to identify the effects of other types of antioxidants, such as extra virgin olive oil and turmeric. More homogeneous interventions in terms of antioxidant doses administered and duration would allow the effects on pain to be addressed more comprehensively.

Modelling the risk of hospital admission of lab confirmed SARS-CoV-2-infected patients in primary care: a population-based study.

The objectives of this study are to develop a predictive model of hospital admission for COVID-19 to help in the activation of emergency services, early referrals from primary care, and the improvement of clinical decision-making in emergency room services. The method is the retrospective cohort study of 49,750 patients with microbiological confirmation of SARS-CoV-2 infection. The sample was randomly divided into two subsamples, for the purposes of derivation and validation of the prediction rule (60% and 40%, respectively). Data collected for this study included sociodemographic data, baseline comorbidities, baseline treatments, and other background data. Multilevel analyses with generalized estimated equations were used to develop the predictive model. Male sex and the gradual effect of age were the main risk factors for hospital admission. Regarding baseline comorbidities, coagulopathies, cancer, cardiovascular diseases, diabetes with organ damage, and liver disease were among the five most notable. Flu vaccination was a risk factor for hospital admission. Drugs that increased risk were chronic systemic steroids, immunosuppressants, angiotensin-converting enzyme inhibitors, and NSAIDs. The AUC of the risk score was 0.821 and 0.828 in the derivation and validation samples, respectively. Based on the risk score, five risk groups were derived with hospital admission ranging from 2.94 to 51.87%. In conclusion, we propose a classification system for people with COVID-19 with a higher risk of hospitalization, and indirectly with it a greater severity of the disease, easy to be completed both in primary care, as well as in emergency services and in hospital emergency room to help in clinical decision-making.Registration: ClinicalTrials.gov Identifier: NCT04463706.

Mass Cytometry for the Characterization of Individual Cell Types in Ovarian Solid Tumors.

Mass cytometry aka Cytometry by Time-Of-Flight (CyTOF) is one of several recently developed multiparametric single-cell technologies designed to address cellular heterogeneity within healthy and diseased tissue. Mass cytometry is an adaptation of flow cytometry in which antibodies are labeled with stable heavy metal isotopes and the readout is by time-of-flight mass spectrometry. With minimal spillover between channels, mass cytometry enables readouts of up to 60 parameters per single cell. Critically, mass cytometry can identify minority cell populations that are lost in bulk tissue analysis. Mass cytometry has been used to great effect for the study of immune cells. We have extended its use to examine single cells within disaggregated solid tissues, specifically freshly resected tubo-ovarian high-grade serous tumors. Here we detail our protocols designed to ensure the production of high-quality single-cell datasets. The methodology can be modified to accommodate the study of other solid tissues.

High-grade serous ovarian tumor cells modulate NK cell function to create an immune-tolerant microenvironment.

Tubo-ovarian high-grade serous carcinoma (HGSC) is unresponsive to immune checkpoint blockade despite significant frequencies of exhausted T cells. Here we apply mass cytometry and uncover decidual-like natural killer (dl-NK) cell subpopulations (CD56+CD9+CXCR3+KIR+CD3-CD16-) in newly diagnosed HGSC samples that correlate with both tumor and transitioning epithelial-mesenchymal cell abundance. We show different combinatorial expression patterns of ligands for activating and inhibitory NK receptors within three HGSC tumor compartments: epithelial (E), transitioning epithelial-mesenchymal (EV), and mesenchymal (vimentin expressing [V]), with a more inhibitory ligand phenotype in V cells. In cocultures, NK-92 natural killer cells acquire CD9 from HGSC tumor cells by trogocytosis, resulting in reduced anti-tumor cytokine production and cytotoxicity. Cytotoxicity in these cocultures is restored with a CD9-blocking antibody or CD9 CRISPR knockout, thereby identifying mechanisms of immune suppression in HGSC. CD9 is widely expressed in HGSC tumors and so represents an important new therapeutic target with immediate relevance for NK immunotherapy.