RESUMO

INTRODUCTION: To compare the diagnostic sensitivity of artificial intelligence (AI) assisted videocolposcopy with standard videocolposcopy performed by specialist colposcopists. METHODS: A descriptive retrospective cross-sectional study, 782 anonymized medical records from the Computerized System for Screening (SITAM) of women who underwent videocolposcopy with AI and colposcopy with common videocolposcopy performed by specialists, with their corresponding biopsies (gold standard) were analyzed. The relationship between the results of IA videocolposcopy and regular videocolposcopy and the results of biopsies was evaluated. The overall accuracy of each diagnostic procedure was calculated. The sensitivity and concordance of the results of AI videocolposcopy with the gold standard (biopsy) were determined. RESULTS: A total of 395 patient records of patients with IA videocolposcopy and 387 with regular videocolposcopy were analyzed. The accuracy of results was 80% (IC 95%: 75-83%) in IA videocolposcopy and 65% (IC 95%: 60-69%) in regular videocolposcopy (p<0.001). Videocolposcopy results with IA and common colposcopy were significantly correlated with biopsy results, rs=0.75 vs. rs=0.57 respectively (p<0.001). The sensitivity of videocolposcopy with AI was 96% (95% CI: 94-98%), and 93% (95% CI: 89-95%) for regular colposcopy. The overall agreement of colposcopic impressions classified by videocolposcopy with AI and disease was higher than that of colposcopic interpretation by colposcopists (90% vs. 83%, Kappa 0.59 vs. 0.47, p<0.001). CONCLUSION: The high diagnostic accuracy of AI videocolposcopy allows obtaining highly sensitive studies that help in the early detection of precursor lesions of cervical neoplasia.

Introducción: Objetivo: comparar sensibilidad diagnóstica de videocolposcopia con inteligencia artificial (IA) auxiliar, con la videocolposcopia común realizada por colposcopistas. Métodos: Estudio descriptivo de corte transversal retrospectivo, en 782 historias clínicas anonimizadas del Sistema Informático para el Tamizaje (SITAM), de mujeres a las cuales se les efectuaron videocolposcopia con IA y colposcopías con videocolposcopio común realizadas por especialistas, con sus biopsias (gold standard). Se evaluó la relación entre los resultados de videocolposcopia con IA y videocolposcopia común con resultados de las biopsias. Se calculó precisión global de cada procedimiento diagnóstico. Se determinó sensibilidad y concordancia de los resultados de la videocolposcopia con IA, con el gold standard. Resultados: Se analizaron 395 historias clínicas de pacientes con videocolposcopia con IA y 387 con videocolposcopia común. La precisión diagnóstica de resultados fue 80% (IC 95%: 75-83%) en videocolposcopias con IA y 65% (IC 95%: 60-69%) en videocolposcopia común (p<0.001). Los resultados de videocolposcopia con IA y colposcopia común se correlacionaron significativamente con los resultados de las biopsias, rs=0.75 vs. r s=0.57 respectivamente (p<0.001). La sensibilidad de videocolposcopia con IA fue 96% (IC 95%: 94-98%), y 93% (IC 95%: 89-95%) en colposcopías comunes. La concordancia general de las impresiones colposcópicas clasificadas por videocolposcopia con IA y enfermedad fue mayor que la de la interpretación colposcópica de los colposcopistas (90% frente a 83%, Kappa 0.59 frente a 0.47, p<0.001). Conclusión: La alta precisión diagnóstica de videocolposcopia con IA permite aumentar la sensibilidad del estudio y mejorar la detección precoz de lesiones precursoras de neoplasias cervicouterinas.

Assuntos

RESUMO

Snakebite envenomation is classified as a Neglected Tropical Disease. Bothrops jararaca venom induces kidney injury and coagulopathy. HF3, a hemorrhagic metalloproteinase of B. jararaca venom, participates in the envenomation pathogenesis. We evaluated the effects of HF3 in mouse kidney and blood plasma after injection in the thigh muscle, mimicking a snakebite. Transcriptomic analysis showed differential expression of 31 and 137 genes related to kidney pathology after 2 h and 6 h, respectively. However, only subtle changes were observed in kidney proteome, with differential abundance of 15 proteins after 6 h, including kidney injury markers. N-terminomic analysis of kidney proteins showed 420 proteinase-generated peptides compatible with meprin specificity, indicating activation of host proteinases. Plasma analysis revealed differential abundance of 90 and 219 proteins, respectively, after 2 h and 6 h, including coagulation-cascade and complement-system components, and creatine-kinase, whereas a semi-specific search of N-terminal peptides indicated activation of endogenous proteinases. HF3 promoted host reactions, altering the gene expression and the proteolytic profile of kidney tissue, and inducing plasma proteome imbalance driven by changes in abundance and proteolysis. The overall response of the mouse underscores the systemic action of a hemorrhagic toxin that transcends local tissue damage and is related to known venom-induced systemic effects.

Assuntos

RESUMO

Introduction: The Chilean Society of Bariatric and Metabolic Surgery, together with other scientific societies, led a process for adapting the Canadian clinical practice guideline for obesity in adults for Chile. The aim of the Canadian guideline, among its main objectives, was to propose changes in obesity management using a chronic disease framework and focusing on improving patient-centered health outcomes, rather than focusing on weight loss alone. Methods: A group of 58 healthcare professionals applied the GRADE-Adolopment method to analyze and adapt the original recommendations and to create de novo recommendations. New recommendations were developed through a systematic review of the evidence using the Epistemonikos database and based on the GRADE-Evidence to Decision (EtD) framework. Results: Seventy-six (76) of the 80 original recommendations were adopted, one recommendation was adapted, and 12 new recommendations were created. Conclusions: The adaptation process reduced the time needed to develop a Chilean clinical practice guideline for the management of obesity in adults. The change in obesity management approaches towards non-stigmatizing and patient-centered strategies focused on improving health outcomes and not solely on weight reduction is universal and it is possible to apply this approach in different countries and contexts.

Introducción: La Sociedad Chilena de Cirugía Bariátrica y Metabólica, junto a otras sociedades científicas, lideró el proceso de adaptación de la guía de práctica clínica de obesidad en adultos para Chile, tomando como base las directrices desarrolladas para Canadá. La guía canadiense buscó, entre sus principales objetivos, proponer cambios en el enfoque del manejo de la obesidad como una enfermedad crónica y para mejorar los desenlaces de salud centrados en los pacientes, en lugar de enfocarse en la pérdida de peso como principal y único objetivo. Métodos: Se convocó a un grupo de 58 profesionales para el desarrollo del proyecto, quienes revisaron y utilizaron el método para el análisis de las recomendaciones originales y desarrollo de recomendaciones . Para la elaboración de nuevas recomendaciones, se llevó a cabo una búsqueda de revisiones sistemáticas en la base de datos Epistemonikos, y se utilizó metodología GRADE y el marco para la evaluación de la evidencia y la descripción de la recomendación. Resultados: Se adoptaron 76 de las 80 recomendaciones de la guía canadiense, se adaptó una recomendación y se desarrollaron 12 preguntas nuevas con sus respectivas recomendaciones. Conclusiones: Conclusiones.

Assuntos

RESUMO

Introducción La Sociedad Chilena de Cirugía Bariátrica y Metabólica, junto a otras sociedades científicas, lideró el proceso de adaptación de la guía de práctica clínica de obesidad en adultos para Chile, tomando como base las directrices desarrolladas para Canadá. La guía canadiense buscó, entre sus principales objetivos, proponer cambios en el enfoque del manejo de la obesidad como una enfermedad crónica y para mejorar los desenlaces de salud centrados en los pacientes, en lugar de enfocarse en la pérdida de peso como principal y único objetivo. Métodos Se convocó a un grupo de 58 profesionales para el desarrollo del proyecto, quienes revisaron y utilizaron el método para el análisis de las recomendaciones originales y desarrollo de recomendaciones . Para la elaboración de nuevas recomendaciones, se llevó a cabo una búsqueda de revisiones sistemáticas en la base de datos Epistemonikos, y se utilizó metodología GRADE y el marco para la evaluación de la evidencia y la descripción de la recomendación. Resultados Se adoptaron 76 de las 80 recomendaciones de la guía canadiense, se adaptó una recomendación y se desarrollaron 12 preguntas nuevas con sus respectivas recomendaciones. Conclusiones El proceso de adaptación permitió acortar el tiempo necesario para elaborar una guía de práctica clínica en obesidad del adulto para nuestro país. El cambio en el enfoque hacia una aproximación sin estigma y centrada en la salud y no en el peso, es universal y posible de aplicar en diferentes países y contextos.

Introduction The Chilean Society of Bariatric and Metabolic Surgery, together with other scientific societies, led a process for adapting the Canadian clinical practice guideline for obesity in adults for Chile. The aim of the Canadian guideline, among its main objectives, was to propose changes in obesity management using a chronic disease framework and focusing on improving patient-centered health outcomes, rather than focusing on weight loss alone. Methods A group of 58 healthcare professionals applied the GRADE-Adolopment method to analyze and adapt the original recommendations and to create de novo recommendations. New recommendations were developed through a systematic review of the evidence using the Epistemonikos database and based on the GRADE-Evidence to Decision (EtD) framework. Results Seventy-six (76) of the 80 original recommendations were adopted, one recommendation was adapted, and 12 new recommendations were created. Conclusions The adaptation process reduced the time needed to develop a Chilean clinical practice guideline for the management of obesity in adults. The change in obesity management approaches towards non-stigmatizing and patient-centered strategies focused on improving health outcomes and not solely on weight reduction is universal and it is possible to apply this approach in different countries and contexts.

RESUMO

La Sociedad Chilena de Cirugía Bariátrica y Metabólica, junto a otras sociedades científicas, lideró el proceso de adaptación de la guía de práctica clínica de obesidad en adultos para Chile, tomando como base las directrices desarrolladas para Canadá. La guía canadiense buscó, entre sus principales objetivos, proponer cambios en el enfoque del manejo de la obesidad como una enfermedad crónica y para mejorar los desenlaces de salud centrados en los pacientes, en lugar de enfocarse en la pérdida de peso como principal y único objetivo. Se convocó a un grupo de 58 profesionales para el desarrollo del proyecto, quienes revisaron y utilizaron el método para el análisis de las recomendaciones originales y desarrollo de recomendaciones . Para la elaboración de nuevas recomendaciones, se llevó a cabo una búsqueda de revisiones sistemáticas en la base de datos Epistemonikos, y se utilizó metodología GRADE y el marco para la evaluación de la evidencia y la descripción de la recomendación. Se adoptaron 76 de las 80 recomendaciones de la guía canadiense, se adaptó una recomendación y se desarrollaron 12 preguntas nuevas con sus respectivas recomendaciones. El proceso de adaptación permitió acortar el tiempo necesario para elaborar una guía de práctica clínica en obesidad del adulto para nuestro país. El cambio en el enfoque hacia una aproximación sin estigma y centrada en la salud y no en el peso, es universal y posible de aplicar en diferentes países y contextos.

Assuntos

RESUMO

Schistosomiasis represents a condition in which every aspect of the disease, starting from skin invasion of the cercariae to egg laying by adult worms, incites a tissue response from the vertebrate host. This response, whether acute or chronic, leads to the appearance of reporter molecules of tissue injury in bodily fluids that could be surveyed as markers for disease diagnosis, status and prognosis. In this scenario, the serum proteome associated with a schistosome infection remains poorly explored; particularly by the use of high-throughput mass spectrometric instrumentation. In this study, we aimed to comparatively examine the serum proteome of control versus infected BALB/c mice, spanning the interval between the onset of egg laying and the peak of the acute phase of infection. Compositional analysis of the sera, using one dimensional reversed-phase fractionation of tryptic peptides coupled to mass spectrometry, allowed identification of 453 constituents. Among these, over 30% (143 molecules) were differentially present comparing sera from infected and non-infected mice, as revealed by quantitative label-free shotgun approach. The majority of proteins exhibiting altered levels was categorised as belonging to immune response (acute phase-related proteins) followed by those linked to lipid transport and metabolism. Inspection of the lipid profile from control and infected individuals demonstrated more pronounced and significant alterations in triglycerides, VLDL and HDL fractions (p<0,001), attesting for a disturbance in circulating lipid molecules, and suggesting a key role in host-parasite interactions. Our findings provide a global view of the serum proteome in the context of experimental schistosomiasis during the acute phase of infection. It contributes by listing key molecules that could be monitored to inform on the associated inflammatory disease status. We hope it will shed light into uncovered aspects of the Schistosoma mansoni parasitism in the vertebrate host, particularly those related to modulation of the lipid metabolism mediating immune responses.

Assuntos

RESUMO

La morbimortalidad materno-neonatal es un problema de salud pública en el Perú. El Ministerio de Salud ha diseñado diversas intervenciones que permiten enfrentar este problema tales como planificación familiar, atención del parto por profesional de salud y atención prenatal reenfocada; las cuales son parte del Programa Presupuestal (PP) Salud Materno Neonatal que es ejecuta en los establecimientos de salud del país del MINSA y de los Gobiernos Regionales.

Neonatal maternal morbidity and mortality is a public health problem in Peru. The Ministry of Health (MINSA) has designed various interventions to address this problem, such as family planning, delivery care by a health professional, and refocused prenatal care; which are part of the Budgetary Program (PP) Maternal Neonatal Health that is executed in the health establishments of the country of the MINSA and the Regional Governments.

RESUMO

The Asian invasive species Limnoperna fortunei (Dunker, 1857), known as the golden mussel, causes great economic and environmental damage due to its fixative capacity and accelerated proliferation. Molecular studies for the control of larval and adult forms are of great economic, scientific and technological interest. Here, we first report on the compositional analysis of the L. fortunei proteome obtained through shotgun analysis using LC-MS/MS. Among those 2790 proteins identified, many of them related to secretory processes and membrane receptors. Our second approach consisted in exposing the mollusc to the molluscicide niclosamide to evaluate the induced proteomic alterations. Exposure to niclosamide at 0.25 mg/L for 24 h resulted in a pronounced differential abundance of proteins when compared to those obtained when exposure was reduced to 4 h at 2.3 mg/L. In total, 342 proteins were found differentially expressed in the responsive individuals as revealed by label-free quantitative proteomics. Regarding the affected cell processes were: cell division and differentiation, cytoskeletal organization and compartment acidification (upregulated), and energy metabolism (downregulated). Our findings constitute the first inventory of the expressed proteome of the golden mussel and have the potential to contribute with a more rational proposition of molecular targets for control and monitoring of this species. SIGNIFICANCE: With the recent availability of transcriptomic and genomic data applied to L. fortunei the timing is right to interrogate its putative gene repertoire using proteomic techniques. These have the potential to validate the existence of the predicted genes, infer their relative abundance and quantify their levels as a response to environmental stressors or various agents. Here we provided an inventory of the golden mussel proteome and evaluated its response to the molluscicide niclosamide. The obtained results open new avenues for intervention aimed at its control or elimination, particularly by targeting the various cellular processes that were uncovered.

Assuntos