Triple negative breast cancer migration is modified by mitochondrial metabolism alteration induced by natural extracts of C. spinosa and P. alliacea.

Tumor metabolism is a crucial aspect of cancer development, and mitochondria plays a significant role in the aggressiveness and metastasis of tumors. As a result, mitochondria have become a promising therapeutic target in cancer treatment, leading to the development of compounds known as mitocans. In our group, we have consolidated the search of anticancer therapies based on natural products derived from plants, obtaining extracts such as P2Et from Caesalpinia spinosa and Anamu-SC from Petiveria alliacea, which have been shown to have antitumor activities in different cancer models. These extracts, due to their complex molecular composition, can interfere with multiple functions during tumor progression. To better understand how these natural products operate (P2Et and Anamu-SC), we constructed a model using 4T1 murine breast cancer cells with reduced expression of genes associated with glycolysis (Hexokinase-2) and mitochondrial function (Cqbp). The results indicate that the cells were more sensitive to the Anamu-SC extract, showing significant decreases in glucose consumption, ATP production, and oxygen consumption rate. Additionally, we observed changes in mitochondrial function, which reduced the cells' ability to migrate, particularly when C1qbp was silenced. This triple-negative breast cancer model allows us to identify potential natural products that can modulate tumor cell metabolism.

The Weight of Bariatric Surgery: Wernicke-Korsakoff Syndrome after Vertical Sleeve Gastrectomy-A Case Series.

In this case series, the simultaneous occurrence of Wernicke's encephalopathy (WE) and dry beriberi was reported in three patients who underwent vertical sleeve gastrectomy (VSG) between May 2021 and May 2023. All patients were obese women who underwent vertical sleeve gastrectomy (VSG) without immediate postoperative complications, but two weeks later, hyperemesis and subsequent encephalopathy with ocular movement abnormalities and weakness were observed over the following thirty days. Patients were referred to neurology, where due to the high suspicion of WE, thiamine replacement therapy was initiated; meanwhile, diagnostic neuroimaging and blood tests were conducted. Neurological and psychiatric evaluations and neuroconduction studies were performed to assess the clinical evolution and present sequelae. One year after diagnosis, all patients exhibited affective and behavioral sequelae, anterograde memory impairment, and executive functioning deficits. Two patients met the criteria for Korsakoff syndrome. Additionally, peripheral nervous system sequelae were observed, with all patients presenting with sensorimotor polyneuropathy. In conclusion, Wernicke's encephalopathy requires a high diagnostic suspicion for timely intervention and prevention of irreversible sequelae, which can be devastating. Therefore, raising awareness among medical professionals regarding the significance of this disease is essential.

Uso de las redes sociales virtuales, percepción de soledad y habilidades sociales en jóvenes adultos españoles de la generación Z y la generación Y / Use of Virtual Social Networks and its Relationship with the Perception of Loneliness and Social Skills Among Spanish Young Adults of Generation Z and Y

Resumen Las redes sociales virtuales atraen a diferentes usuarios por las múltiples potencialidades e impactos característicos de esta sociedad tecnológica. El propósito de este estudio es identificar las redes sociales virtuales más usadas por los jóvenes, los motivos personales de uso y la relación de su utilización con la percepción de soledad y las habilidades de autoexpresión en escenarios sociales. En particular, se evalúan las diferencias de tales usos en función de la edad, el nivel de escolaridad y el género. En el estudio participaron 251 jóvenes adultos españoles con edades comprendidas entre los 18 y 40 años (X = 26.33, D.T. = 5-91) contactados a través de un muestreo no probabilístico por conveniencia. Se observó que el uso de las redes sociales virtuales se ve aumentado en los participantes con bajas habilidades sociales, altos niveles de soledad y más jóvenes. Destacan los motivos de aburrimiento y evasión o escape para usar los espacios digitales y se registra una tendencia en los jóvenes de la generación Z (18 a 28 años) a utilizar más las redes sociales virtuales, en comparación con los de la generación Y (29 a 40 años). Como conclusiones, se señala la conveniencia de controlar el uso problemático de las redes sociales virtuales y de entrenar las habilidades sociales para mejorar las relaciones interpersonales.

Abstract Virtual social networks are attracting different types of users thanks to the multiple potentialities and impacts characteristic of this technological society. The aim of this study is to identify the virtual social networks most used by young people, as well as the personal reasons for use and their negative effects in relation to the perception of loneliness and their self-expression skills in social settings. As specific objectives, it is proposed to determine the differences in such uses depending on age, level of education and gender. A non-probabilistic convenience sampling was carried out so that 251 young Spanish adults between the ages of 18 and 40 years old participated (X = 26.33, DT. = 5-91). It has been verified that the use of social networks is increased when presenting low social skills, having high levels of loneliness and the younger one is. The reasons for boredom and evasion or escape in the use of these digital spaces stand out, and a tendency is observed in the young people of Generation Z (young people between 18 and 28 years old) to use VSN more in comparison with the previous Generation Y (with a range of 29 to 40 years old). It emphasizes the convenience of controlling the problematic use of social networks, training social skills to improve interpersonal relationships and strengthening emotionally.

Acute Hepatitis in Children Due to Rat Hepatitis E Virus.

Two of 11 children with acute hepatitis of unknown origin were found to have rat hepatitis E virus infection. This infection should be considered in the differential diagnosis of children with acute hepatitis of unknown origin.

Epileptic encephalopathies secondary to hypothalamic hamartomas treated with radiosurgery: A case series.

OBJECTIVE: Hypothalamic hamartomas are congenital lesions that typically present with gelastic seizures, refractory epilepsy, neurodevelopmental delay, and severe cognitive impairment. Surgical procedures have been reported to be effective in removing the hamartomas, however, they are associated with significant morbidity. Therefore, it is not considered a safe therapeutic modality. Image-guided robotic radiosurgery (CyberKnife® Radiosurgery System) has been shown to provide good outcomes without lasting complications. METHODS: This series of cases describes the clinical, radiological, radiotherapeutic, and postsurgical outcomes of five patients with epileptic encephalopathies secondary to hypothalamic hamartomas who were treated with CyberKnife®. RESULTS: All patients exhibited refractory epilepsy with gelastic seizures and were unsuitable candidates for surgical resection The prescribed dose ranged between 16 and 25 Gy, delivered in a single fraction for four patients and five fractions for one patient while adhering strictly to visual pathway constraints. After radiosurgery, four patients maintained seizure control (one with an Engel class Ia, three with an Engel class 1d), and another presented sporadic, nondisabling gelastic seizures (with an Engel class IIa). After 24-26 months of follow-up, in three patients, their intelligence quotient scores increased. No complications were reported. SIGNIFICANCE: This report suggests that Cyberknife may be a good option for treating hypothalamic hamartoma, particularly in cases where other noninvasive alternatives are unavailable. Nevertheless, additional studies are essential in order to evaluate the effectiveness of the technique in these cases.

Nivel de ansiedad y miedo al covid-19 en médicos de la contingencia respiratoria del Hospital de Clínicas, durante la pandemia por el SARS-COV-2 / Anxiety and covid-19 fear in respiratory contingency of Clinical Hospital physicians during SARS-COV-2 pandemic

Introducción: Como ocurrió en todos los hospitales, los profesionales del Hospital de Clínicas sufrieron elevada presión física y psicológica. Estudios previos, sobre todo realizados en China, ya sugerían que los profesionales sanitarios eran especialmente vulnerables al malestar psicológico derivado de la pandemia. Objetivos: Determinar el nivel de ansiedad y miedo al COVID 19 en los médicos del área de Contingencia respiratoria del Hospital de Clínicas. Materiales y métodos: Se realizó un estudio observacional, descriptivo, de corte transverso, de muestreo no probabilístico por conveniencia, en individuos de ambos sexos, mayores de 18 años, en médicos del área de Contingencia respiratoria del Hospital de Clínicas de San Lorenzo durante la pandemia por el SARS-COV2. Resultados: Fueron encuestados 68 médicos, de los cuales el 63% fueron del sexo femenino, la edad promedio de los participantes fue de 31 años (±4,48). La mayoría de los encuestados fueron residentes. El 75% pertenecen a la especialidad de Medicina Interna. El 30.8% cuenta con 4 dosis de vacuna contra el SARSCOV 2. Presentaron síntomas de miedo al COVID-19 el 44,1%, de los cuales, los síntomas más frecuentes fueron: miedo a infectarse con el COVID-19 48,5%; incomodidad al pensar en el COVID19 39,7%; perder la vida a causa del COVID-19 el 30,8%. El 66,1% tiene criterios de Trastorno de Ansiedad Generalizada, de los cuales la mayoría sufre de Ansiedad Leve. Conclusión: Se observa una alta prevalencia de síntomas de Ansiedad y Miedo al COVID-19 en médicos de la Contingencia Respiratoria del Hospital de Clínicas.

Introduction: As happened in all hospitals, the professionals at the Hospital de Clínicas suffered high physical and psychological pressure. Previous studies, especially carried out in China, already suggested that health professionals were especially vulnerable to psychological distress derived from the pandemic. Objectives: Determine the level of anxiety and fear of COVID 19 in doctors of the Respiratory Contingency area of the Hospital de Clínicas. Materials and methods: An observational, descriptive, cross-sectional, non-probabilistic convenience sampling study was carried out in individuals of both sexes, over 18 years of age, in doctors from the Respiratory Contingency area of the Hospital de Clínicas de San Lorenzo during the SARS-COV2 pandemic. Results: 68 doctors were surveyed, of which 63% were female; the average age of the participants was 31 years (±4.48). The majority of respondents were residents. 75% belong to the specialty of Internal Medicine. 30.8% have 4 doses of vaccine against SARSCOV 2. 44.1% presented symptoms of fear of COVID-19, of which the most frequent symptoms were: fear of becoming infected with COVID-19 48. 5%; discomfort when thinking about COVID19 39.7%; 30.8% lose their lives due to COVID-19. 66.1% have criteria for Generalized Anxiety Disorder, of which the majority suffer from Mild Anxiety. Conclusion: A high prevalence of symptoms of Anxiety and Fear of COVID-19 is observed in Respiratory Contingency doctors at the Hospital de Clínicas.

Isolation and Characterization of an Antioxidant Aryl Polyene Pigment from Antarctic Bacterium Lysobacter sp. A03.

Lysobacter is known as a bacterial genus with biotechnological potential, producing an array of enzymes, antimicrobial metabolites, and bioactive antioxidant compounds, including aryl polyene (APE) pigments that have been described as protecting substances against photooxidative damage and lipid peroxidation. In this study, the pigment extracted from keratinolytic Lysobacter sp. A03 isolated from Antarctic environment was characterized. The results of KOH test, UV-vis spectroscopy, CIELAB color system, 1H-NMR, and FTIR-ATR spectroscopy suggest the pigment is a yellow xanthomonadin-like pigment. The in vitro antioxidant activity of the pigment was confirmed by the scavenging of ABTS and DPPH radicals. In silico analysis of the genome through antiSMASH software was also performed and the secondary metabolite gene clusters for APE and resorcinol synthesis were identified, suggesting that proteins responsible for the pigment biosynthesis are encoded in Lysobacter A03 genome.

Cáncer incidental de vesícula: incidencia y factores asociados en pacientes de una institución de la ciudad de Medellín / Incidental gallbladder cancer: Incidence and associated factors in patients from an institution in the city of Medellín

Introducción. El cáncer de vesícula biliar es una de las neoplasias más frecuentes de la vía biliar y la mayoría de los casos se diagnostican de forma incidental o en estadios avanzados. En Colombia existen pocas publicaciones acerca de la prevalencia y características clínicas de pacientes con cáncer insospechado de vesícula biliar. El objetivo de este trabajo fue actualizar la información existente. Métodos. Estudio de tipo transversal basado en registros médicos. Como variable de resultado se definió el hallazgo incidental de patología maligna reportado por un patólogo y el subtipo histológico. Se midieron variables demográficas, clínicas y quirúrgicas. Se calcularon OR con sus respectivos intervalos de confianza (IC95%). Resultados. De los 2630 casos analizados, en cuatro se hizo diagnóstico de cáncer incidental de vesícula, con una prevalencia del 0,15 %. Se encontraron como características asociadas al cáncer incidental de vesícula, la edad, el antecedente de cáncer y la presencia de pólipos. Conclusiones. Esta es una patología poco frecuente en la población evaluada, lo que permite afirmar que no es necesario realizar estudios prequirúrgicos más amplios de forma rutinaria, a menos que el paciente presente alguno de los factores asociados.

Introduction. Gallbladder cancer is one of the most common neoplasms of the bile duct and most cases are diagnosed incidentally or in advanced stages. In Colombia, there are few publications about the prevalence and clinical characteristics of patients with unsuspected gallbladder cancer. The objective of this work was to update the existing information. Methods. Cross-sectional study based on medical records. The incidental finding of malignant pathology reported and the histological subtype were defined as the outcome variable. Demographic, clinical and surgical variables were measured. ORs were calculated with their respective 95% CI. Results. Of the 2630 cases analyzed, four were diagnosed with incidental gallbladder cancer, with a prevalence of 0.15%. Characteristics associated with incidental gallbladder cancer were age, history of cancer and the presence of polyps. Conclusions. This is a rare pathology in the population evaluated, which allows us to recommend that it is not necessary to routinely perform more extensive presurgical studies, unless the patient presents any of the associated factors.

Análisis de conglomerados usando la distancia Euclidiana en el comportamiento de linfocitos T CD4

Introducción: La infección por el virus de inmunodeficiencia humana (VIH) y su evolución a través de cuatro décadas (crónica) ha orillado a médicos a estudiar el comportamiento de los linfocitos T CD4 con ayuda ramas como la estadística y matemáticas. Objetivo: Describir el comportamiento del conteo de linfocitos T CD4 en el tiempo a través del aprendizaje no supervisado. Métodos: Estudio tipo cohorte retrospectiva, se realizó una búsqueda de cuantificaciones de linfocitos T CD4 continuas a través del periodo de estudio establecido (2018-2022) en el expediente electrónico, en la presente investigación no se tuvo contacto con los pacientes. Resultados: Existe un ascenso en los valores numéricos promedio de linfocitos T CD4 a lo largo del estudio y se empieza a estabilizar entre los grupos hacia un recuento sobre los 500 linfocitos, lo cual refleja un estado inmunológico bueno a través del tiempo. Conclusión: Identificamos estabilidad en el seguimiento temporal, lo cual puede contribuir a un patrón de memoria por lo que sugerimos un análisis fractal extenso.

Introduction: Infection with the human immunodeficiency virus (HIV) and its evolution over four decades (chronic) has led doctors to study the behavior of CD4 T lymphocytes with the help of branches such as statistics and mathematics. Objective: To describe the behavior of the CD4 T lymphocyte count over time through unsupervised learning. Methods: Retrospective cohort type study, a search for continuous CD4 T lymphocyte quantifications throughout the established study period (2018-2022) was performed in the electronic file, in the present investigation there was no contact with the patients. Results: There is an increase in the average numerical values of CD4 T lymphocytes throughout the study and it begins to stabilize between the groups towards a count of over 500 lymphocytes, which reflects a good immune status over time. Conclusion: We identified stability in temporal tracking, which may contribute to a memory pattern, so we suggest an extensive fractal analysis.

Cross-cultural validation of the COVID-19 peritraumatic distress index (CPDI) among Spanish and Peruvian populations.

The COVID-19 pandemic has had a significant psychological impact worldwide. The COVID-19 Peritraumatic Distress Index (CPDI) is widely used to assess psychological stress during the COVID-19 pandemic. Although CPDI has been validated in Peru and Spain, no cross-cultural validation studies have been conducted. As an exploratory aim, differences in CPDI factorial scores between the most prevalent medical conditions in the two samples (arterial hypertension, respiratory diseases and anxious-depressive disorders) from a general population of Peru and Spain were investigated. We conducted secondary data analysis with data from Peru and Spain to validate the CPDI in a cross-cultural context. Exploratory factor analysis (EFA) and multigroup confirmatory factor analysis (MGCFA) were performed to evaluate the factor structure and measurement invariance of the CPDI across cultural contexts. Concerning the exploratory analysis, we performed a U-Mann-Whitney test to evaluate differences in the factorial scores in the two samples. This study revealed a two-factor solution (stress and rumination/information) for the CPDI that included 21 of the 24 original items, and consistent with previous studies. The MGCFA demonstrated measurement invariance across cultural contexts (scalar invariance), indicating that the CPDI construct has the same meaning across both groups, regardless of cultural context and language variations of Spanish. Patients with anxious-depressive disorders showed higher CPDI factorial scores for both factors, whereas patients with respiratory diseases were only associated with the stress factor. This study provides evidence for the cross-cultural validity of the CPDI, highlighting its utility as a reliable instrument for assessing psychological stress in the context of COVID-19 across different cultures. These findings have important implications for developing and validating measures to assess psychological distress in different cultural contexts.

Cluster headache: state of the art in treatment.

Cluster headache (CH) is the most common and devastating autonomic headache with multiple and recent advances in treatment. However, it usually goes unrecognized and is found to have a delayed and inappropriate treatment. This paper aims to review the current therapeutic options for patients with CH. We conducted a narrative literature review on the treatments available for this condition using the American Academy of Neurology (AAN) classification of therapeutic evidence. We found effective and safe pharmacological and non-pharmacological therapies with heterogeneity of clinical trial designs for patients with CH, and they are divided into three phases, namely, transitional, acute, and preventive interventions. Prednisone (A) is the most studied treatment in the transitional phase; acute attacks are treated using triptans (A), oxygen (A), and non-invasive transcutaneous vagal nerve stimulation (A). Verapamil (A) and monoclonal antibodies (possible A) are considered the first options in preventive treatments, followed by multiple pharmacological and non-pharmacological options in prophylactic treatments. In conclusion, numerous effective and safe treatments are available in treating patients with episodic, chronic, and pharmacoresistant CH according to the clinical profile of each patient.

Standards for psychosocial care in pediatric cancer: adapted proposal for Latin American and Caribbean countries / Normas para la atención psicosocial en el cáncer pediátrico: una propuesta adaptada para los países de América Latina y el Caribe / Padrões de atendimento psicossocial em câncer pediátrico: proposta adaptada para países da América Latina e do Caribe

[ABSTRACT]. Objective. To highlight the objectives, achievements, challenges, and next steps for the World Health Organization’s Global Initiative for Childhood Cancer (GICC) framework, a project designed to improve psychosocial care (PSC) in pediatric cancer centers across Latin America and the Caribbean (LAC). Methods. The project was launched in Peru, the first GICC focal country, in November 2020. The diagnosis phase included a survey and a semistructured interview with health professionals to assess PSC practices in institutions, and a needs assessment survey for caregivers. In the second phase, a strategic plan was developed to address the identified needs, including the adaptation of PSC standards, the establishment of multicenter working groups, the expansion of the proposal, and the development of materials. Results. The study found that PSC was not being adequately provided in accordance with international standards. Six adapted standards were proposed and validated, and more than 50 regional health professionals participated in online activities to support the project. The implementation process is currently ongoing, with the establishment of five multidisciplinary working groups, one regional committee, and the production of 16 technical outputs. Conclusion. This project represents a substantial step forward to improve PSC for pediatric patients with cancer and their families in LAC countries. The establishment of working groups and evidence-based interventions strengthen the proposal and its implementation. Development of health policies that include PSC according to standards is needed to achieve sustainable results in the quality of life of children with cancer and their families.

[RESUMEN]. Objetivo. Resaltar los objetivos, logros, desafíos y próximos pasos a seguir en el marco de la Iniciativa Mundial contra el Cáncer Infantil de la Organización Mundial de la Salud (GICC, por su sigla en inglés), un proyecto diseñado para mejorar la atención psicosocial (APSS) en los centros de atención oncológica pediátrica de América Latina y el Caribe. Métodos. El proyecto se inició en Perú, el primer país que puso en marcha esta iniciativa mundial, en noviembre del 2020. La fase de diagnóstico incluyó una encuesta y una entrevista semiestructurada con profesionales de la salud para evaluar las prácticas en materia de APSS en las instituciones, junto con una encuesta de evaluación de necesidades para las personas cuidadoras. En la segunda fase se elaboró un plan estratégico para abordar las necesidades reconocidas, el cual comprendió la adaptación de las normas en materia de APSS, la creación de grupos de trabajo multicéntricos, la ampliación de la propuesta y la elaboración de materiales. Resultados. En el estudio se descubrió que no se proporcionaba una APSS adecuada y conforme a las normas internacionales. Se propusieron y convalidaron 6 normas adaptadas, y más de 50 profesionales de la salud de la región participaron en las actividades en línea dirigidas a apoyar el proyecto. En estos momentos está en marcha el proceso de implementación, que incluye la creación de 5 grupos de trabajo multidisciplinarios, un comité regional y la elaboración de 16 productos técnicos. Conclusión. Este proyecto supone un gran avance para la mejora de la APSS de los pacientes pediátricos con cáncer y sus familias en los países de América Latina y el Caribe. La creación de grupos de trabajo y las intervenciones basadas en la evidencia permiten consolidar la propuesta y su implementación. Es necesario formular políticas de salud que comprendan una APSS basada en normas para lograr resultados sostenibles desde el punto de vista de la calidad de vida de los pacientes pediátricos con cáncer y sus familias.

[RESUMO]. Objetivo. Destacar os objetivos, as conquistas, os desafios e as próximas etapas da Iniciativa Global para o Câncer Infantil (GICC), um projeto criado pela Organização Mundial da Saúde para melhorar a atenção psicossocial em centros de câncer pediátrico na América Latina e no Caribe. Métodos. O projeto foi lançado no Peru, o primeiro país focal da GICC, em novembro de 2020. A fase de diagnóstico incluiu uma pesquisa e uma entrevista semiestruturada com profissionais de saúde para avaliar as práticas de atenção psicossocial nas instituições, bem como uma pesquisa para avaliar as necessidades dos cuidadores. Na segunda fase, foi desenvolvido um plano estratégico para atender às necessidades identificadas, incluindo uma adaptação de padrões de atenção psicossocial, o estabelecimento de grupos de trabalho multicêntricos, a expansão da proposta e o desenvolvimento de materiais. Resultados. O estudo constatou que, de acordo com padrões internacionais, a atenção psicossocial não estava sendo adequadamente oferecida. Seis padrões adaptados foram propostos e validados, e mais de 50 profissionais de saúde da região participaram de atividades on-line para apoiar o projeto. O processo de implementação está em andamento, com a formação de cinco grupos de trabalho multidisciplinares e um comitê regional e a produção de 16 relatórios técnicos. Conclusão. Este projeto representa um avanço substancial para melhorar a atenção psicossocial para pacientes pediátricos com câncer e suas famílias nos países da América Latina e do Caribe. A criação de grupos de trabalho e intervenções baseadas em evidências fortalecem a proposta e sua implementação. É preciso desenvolver políticas de saúde que incluam atenção psicossocial segundo padrões estabelecidos para alcançar resultados sustentáveis na qualidade de vida das crianças com câncer e de suas famílias.

Tinea capitis outbreak and other superficial mycosis in an urban community of Medellín / Brote de tinea capitis y otras micosis superficiales en una comunidad urbana de Medellín

Introduction. Dermatophytoses are superficial fungal infections of the keratinized epithelium like tinea capitis. The latte mainly affects school-vulnerable populations. Carpinelo is a peripheral neighborhood in Medellín with poor socioeconomic conditions and where a suspected tinea capitis outbreak took place. Objective. To study and characterize, clinically and microbiologically, patients with suspected dermatophytosis in Carpinelo. Material and methods. We carried out a descriptive and longitudinal study with an active case search of tinea capitis in children and their relatives from the Jardín Educativo Buen Comienzo community in Carpinelo. Patients were clinically evaluated, and samples of scales and hair were taken to perform mycological studies with a 10 % potassium hydroxide and culture in Sabouraud and Mycosel agar. We analyzed the data with the statistical program SPSS™. 25 version. Results. Fifty-seven individuals were studied: 47 were children with a mean age of six years and a ratio of 2:1 male to female. Patients with confirmed diagnosis presented the following clinical forms: tinea capitis (78.95%), tinea faciei (15.79%) or tinea corporis (10.52%). Out of the total, 69.76% of the patients had previous treatment with steroids. The direct test was positive in 53.84% of the samples, and 46.15% had positive cultures. The isolated species were: Microsporum canis (77.77%), Trichophyton spp. (11.11%), Trichophyton rubrum (5.55%), and Malassezia spp. (5.55 %). Conclusion. Tinea capitis was the most common clinical form, and M. canis was the most frequently isolated species. The use of steroids as the first and only option for empiric treatment was worth of notice. The findings of this study point out the importance of microbiological diagnosis in choosing the best treatment for the patients.

Introducción. Las dermatofitosis son infecciones fúngicas superficiales de epitelios queratinizados. La tinea capitis es una de ellas y afecta a poblaciones escolares vulnerables. Carpinelo es un barrio del área periférica de Medellín con precarias condiciones socioeconómicas. Ante la sospecha de un brote de dermatofitosis, los afectados fueron evaluados. Objetivo. Evaluar clínica y microbiológicamente pacientes del barrio Carpinelo con sospecha de micosis cutáneas para determinar la presencia de un brote por dermatofitos. Materiales y métodos. Se llevó a cabo un estudio descriptivo, de corte longitudinal, con muestreo a conveniencia. Se hizo una búsqueda activa de casos en el Jardín Educativo Buen Comienzo de Carpinelo en niños de la institución y sus familiares. Se evaluaron clínicamente y se tomaron muestras de escamas y cabellos para exámenes directos y cultivos microbiológicos. Se analizó el perfil demográfico, clínico y micológico, con el programa estadístico SPSS™, versión 25. Resultados. Se estudiaron 57 pacientes, 47 eran menores de edad con una media de edad de seis años; se observó una proporción de hombres y mujeres de 2:1. Los pacientes con resultados positivos se diagnosticaron con tinea capitis (78,95 %), tinea faciei (15,79 %) y tinea corporis (10,52 %). El 75,43 % de los pacientes recibió tratamiento previo y de estos el 69,73 % fue con esteroides. El examen directo fue positivo en el 53,84 % y los cultivos en el 46,5 % de los casos. Los agentes aislados fueron: Microsporum canis (77,77 %), Trichophyton spp. (11,11 %), Trichophyton rubrum (5,55 %) y Malassezia spp. (5,55 %). Conclusión. Tinea capitis fue la presentación clínica más común y M. canis el dermatofito más frecuentemente aislado. Llamó la atención el uso de esteroides como primera y única opción del tratamiento empírico' lo cual resalta la importancia del diagnóstico microbiológico para proporcionar la terapia apropiada.

Experiencia en la generación de estrategias de monitorización y evaluación en la implantación de Guías de Práctica Clínica en España / Experience Generating Evaluation and Monitoring Strategies in the Implementation of Clinical Practice Guidelines in Spain / Experiência na geração de estratégias de monitoramento e avaliação na implementação de manuais de prática clínica na Espanha

Introducción. La monitorización de la utilización del conocimiento y la evaluación de resultados permiten conocer la aplicación de la evidencia, cambios en los conocimientos y actitudes, el impacto en resultados de salud y la integración y el mantenimiento de las prácticas adoptadas. Existen debilidades relacionadas con la falta de sistematización, limitaciones de los registros y calidad del proceso. El objetivo de este artículo es describir la experiencia en la generación de estrategias de monitorización y evaluación de resultados de implantación de Guías de Buenas Prácticas en España. División de temas tratados. En primer lugar, se revisan los procesos de medición de resultados en la implantación de Guías, en el marco del Programa Best Practice Spotlight Organizations®, cuya herramienta para liderar el cambio incluye la monitorización y evaluación como una de las seis fases del ciclo de acción. En segundo lugar, se analizan las estrategias de monitorización y evaluación propuestas en la literatura, destacando la Asociación Profesional de Enfermeras de Ontario. Finalmente, se analizan las estrategias de monitorización y evaluación generadas por dos instituciones españolas participantes en el programa, centradas en adecuación de registros, explotación y análisis de indicadores, desarrollo de herramientas, procedimientos de evaluación y mecanismos de difusión y retroalimentación. Conclusiones. La definición de estrategias de monitorización y evaluación planificada de forma temprana contribuye a la viabilidad de la evaluación de la implantación y su sostenibilidad. Es necesario adaptarlas al contexto, con estrategias transversales que alcancen a toda la institución, facilitadas por la institución. Palabras clave: Ciencia de la Implementación; Práctica Clínica Basada en la Evidencia; Evaluación de Resultado en la Atención de Salud; Mecanismos de Evaluación de la Atención de Salud; Indicadores de Calidad de la Atención de Salud

Introduction. Monitoring the usage of knowledge and evaluating results permits one to know the application of the evidence, knowledge, and attitude changes, the impact on health results, integration, and maintenance of the adopted practices. There exist weaknesses related to lack of systematization, limitation of the records, and quality of the process. This article's objective is to describe the experience generating monitoring strategies and evaluation of the results regarding the implementation of good practice guides in Spain. Topics for Reflection. In the first place, the measurement process of the results regarding the implementation of guides are reviewed, in the Best Practice Spotlight Organizations® program frame, whose tool to lead the change includes monitoring and evaluation as one of the sixth phases of the action cycle. In the second place, monitoring and evaluation strategies proposed in the literature are analyzed, highlighting the Professional Nurses Association of Ontario. Finally, the monitoring and evaluation strategies are analyzed by two Spanish institutions participating in the program, focused on the adequation of records, exploitation and indicator analysis, tools development, evaluation procedures, dissemination, and feedback mechanisms. Conclusions: The definition of monitoring and evaluation strategies planned in advance contributes to the viability of the evaluation regarding the implementation and its sustainability. Is necessary to adapt them to the context, with transversal strategies that reach the whole institution, facilitated by the institution. Keywords: Implementation Science; Evidence-Based Practice; Outcome Assessment, Health Care; Health Care Evaluation Mechanisms; Quality Indicators, Health Care

Introdução. Monitorizar a utilização do conhecimento e avaliar os resultados permite-nos conhecer a aplicação das evidências, as mudanças nos conhecimentos e atitudes, o impacto nos resultados de saúde e a integração e manutenção das práticas adotadas. Existem fragilidades relacionadas à falta de sistematização, limitações de registros e qualidade do processo. O objetivo deste artigo é descrever a experiência na geração de estratégias de monitoramento e avaliação dos resultados da implementação de Manuais de Boas Práticas na Espanha. Divisão dos temas abordados. Em primeiro lugar, são revistos os processos de medição de resultados na implementação dos Manuais, no âmbito do Programa Best Practice Spotlight Organizations®, cuja ferramenta para liderar a mudança inclui a monitorização e avaliação como uma das seis fases do ciclo de ação. Em segundo lugar, são analisadas as estratégias de monitoramento e avaliação propostas na literatura, com destaque para a Associação Profissional de Enfermeiros de Ontário. Por fim, são analisadas as estratégias de monitoramento e avaliação geradas por duas instituições espanholas participantes do programa, focadas na adaptação de registros, exploração e análise de indicadores, desenvolvimento de ferramentas, procedimentos de avaliação e mecanismos de divulgação e feedback. Conclusões. A definição de estratégias de monitoramento e avaliação planeadas antecipadamente contribui para a viabilidade da avaliação da implementação e para a sua sustentabilidade. É necessário adaptá-los ao contexto, com estratégias transversais que alcancem toda a instituição, facilitadas pela instituição. Palavras-chave: Ciência da Implementação; Prática Clínica Baseada em Evidências; Avaliação de Resultados em Cuidados de Saúde; Mecanismos de Avaliação da Assistência à Saúde; Indicadores de Qualidade em Assistência à Saúde

HR Gene Variants Identified in Mexican Patients with Alopecia Areata.

Alopecia Areata (AA) is a multifactorial, dermatological disease characterized by non-scarring hair loss. Alterations in candidate genes, such as HR (Hairless), could represent a risk factor for its development. The aim of this study was to search for and analyze variants in exons 3, 15 and 17 of the HR gene in Mexican patients with AA. A total of 30 samples from both AA patients and healthy donors were analyzed in this study. Exons were amplified and sequenced using the Sanger method. Descriptive statistics and χ2 tests were used in the analysis of clinical-demographic characteristics and the comparison of allelic/genotypical frequencies between groups, respectively. The effect on protein function for the non-synonymous variants was determined with three bioinformatics servers. Three gene variants were identified in the HR gene of the evaluated patients. The benign polymorphism c.1010G > A p.(Gly337Asp) (rs12675375) had been previously reported, whereas the variants c.750G > A p.(Gln250Gln) and c.3215T > A (Val1072AGlu) have not been described in other world populations. Both non-synonymous variants proved to be significant (p ≤ 0.05). The variant c.3215T > A p.(Val1072Glu) is of particular interest due to its deleterious effect on the structure and function of the protein; therefore, it could be considered a risk factor for the development of AA.

Genetic variation in the glucosyltransferase-B gene of Streptococcus mutans and its relationship with caries experience in children from Córdoba, Argentina, and with strains from other countries.

BACKGROUND: Caries is a worldwide distributed oral disease of multifactorial nature, with Streptococcus mutans being the most commonly isolated bacterial agent. The glycosyltransferases of this bacterium would play an essential role in the aetiology and pathogenesis of caries. AIM: We explored how the glucosyltransferase-B (gtf-B) gene variability of S. mutans from children in central Argentina correlated with their caries experience and how these strains were genetically related to those of other countries. DESIGN: Dental examinations were performed on 59 children; dmft and DMFT indexes were calculated. From stimulated saliva, S. mutans was grown and counted (CFU/mL). From bacterial DNA, the gtf-B gene was amplified and sequenced. Alleles were identified and their genealogical relationships established. Clinical, microbiological, and genetic variables were correlated with caries experience. Our sequences were included in a matrix with those from 16 countries (n = 358); genealogical relationships among alleles were obtained. Population genetic analyses were performed for countries with >20 sequences. RESULTS: The mean dmft + DMFT was 6.45. Twenty-two gtf-B alleles were identified here, which showed low genetic differentiation in the network. Caries experience was correlated with CFU/mL, but not with allele variation. Low differentiation was found among the 70 alleles recovered from the 358 sequences and among the countries analyzed. CONCLUSION: In this study, caries experience in children was correlated with the number of CFU/mL of S. mutans but not with the gtf-B gene variability. Combined genetic analyses of worldwide strains support the theory that this bacterium experienced population expansions, probably associated with agriculture development and/or food industrialization.

Plant extract from Caesalpinia spinosa inhibits cancer-associated fibroblast-like cells generation and function in a tumor microenvironment model.

Interactions in the tumor microenvironment (TME) between tumor cells and stromal cells such as cancer-associated fibroblasts (CAF) favor increased survival, progression, and transformation of cancer cells by activating mechanisms of invasion and metastasis. The design of new therapies to modulate or eliminate the CAF phenotype or functionality has been the subject of recent research including natural product-based therapies. We have previously described the generation of a standardized extract rich in polyphenols obtained from the Caesalpinia spinosa plant (P2Et), which present antitumor activities in breast cancer and melanoma models through activities that modulate the metabolism of tumor cells or induce the development of the immune response. In this work, a model of CAF generation was initially developed from the exposure of 3T3 fibroblasts to the cytokine TGFß1. CAF-like cells generated in this way exhibited changes in the expression of Caveolin-1 and α-SMA, and alterations in glucose metabolism and redox status, typical of CAFs isolated from tumor tissues. Then, P2Et was shown to counteract in vitro-induced CAF-like cell generation, preventing caveolin-1 loss and attenuating changes in glucose uptake and redox profile. This protective effect of P2Et translates into a decrease in the functional ability of CAFs to support colony formation and migration of 4T1 murine breast cancer tumor cells. In addition to the functional interference, the P2Et extract also decreased the expression of genes associated with the epithelial-mesenchymal transition (EMT) and functional activities related to the modulation of the cancer stem cells (CSC) population. This work is an in vitro approach to evaluate natural extracts' effect on the interaction between CAF and tumor cells in the tumor microenvironment; thus, these results open the chance to design a more profound and mechanistic analysis to explore the molecular mechanisms of P2Et multimolecular activity and extent this analysis to an in vivo perspective. In summary, we present here a standardized polymolecular natural extract that has the potential to act in the TME by interfering with CAF generation and functionality.