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Two 1D coordination polymers (CPs) with general formula [M(L)(H2O)(AcO)]n, (M = Co (1) or Cd (2), AcO = acetate anion and L denotes l-phenylalanine based ligand), were synthesized and fully characterized by various spectroscopies (UV-vis, FTIR, and NMR), thermal techniques, magnetic measurements (for 1), and single-crystal and powder X-ray diffraction studies. They can be described as "ribbon-like" 1D polymers constructed through a zigzag arrangement. The polymeric structure is developed due to the coordination mode adopted by the amino acid ligand, classified as µ3-N1O1:O1:O2, which simultaneously links three metal centers. This moiety also plays an important role as a magnetic coupler between metal centers in the cobalt system, which shows a weak antiferromagnetic interaction. Both CPs have also been used in the catalytic oxidation of cyclohexene with molecular oxygen (O2) as an oxidant. Under mild conditions, both compounds demonstrated remarkable catalytic activity, with the cobalt system being more efficient than the cadmium analogue (conversion: 73 and 58% and selectivity for the major product, 2-cyclohexanone: 63 and 55%, for 1 and 2, respectively). Leaching experiments and the results obtained using a radical quencher are consistent with a radical-mediated mechanism for the Co compound. The presence of the superoxide radical was also confirmed using EPR spectroscopy and DMPO as a spin trap, which was further validated by DFT calculations. The activity observed for the Cd analogue is attributed to the organic scaffold assisted by the templating effect of the metal ion.

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Objetivo: El objetivo de este estudio es analizar la coexistencia de varios síndromes de falsos reconocimientos delirantes en una muestra clínica. Métodos: A lo largo de 1 ano, se seleccionó una muestra de 6 pacientes con 2 o más tipos de falsos reconocimientos delirantes durante el mismo episodio. Todos ellos se encontraban hospitalizados en la unidad de hospitalización psiquiátrica en un hospital de España. Resultados: A pesar de los distintos diagnósticos, los pacientes incluidos presentaban diferentes tipos de falsos reconocimientos delirantes, tanto de hiperidentificación como de hipoidentificación. El tratamiento antipsicótico fue escasamente eficaz contra estos síndromes de falsos reconocimientos delirantes. Conclusiones: La coexistencia de varios síndromes de falsos reconocimientos delirantes indica que la etiopatogenia de los distintos tipos es similar. Se trata de un campo con importantes implicaciones tanto clínicas, por la baja respuesta al tratamiento, como las posibles médico-legales.

Objective: The objective of this study is to analyze the coexistence of several delusional misidentification syndromes in a clinical sample. Methods: Over one year, a sample of six patients presenting two or more types of delusional misidentification syndromes was selected. All these patients were admitted to the psychiatric inpatient unit of a Spanish hospital. Results: Despite the different diagnoses, the patients included presented different types of delusional misidentification syndromes, both hyperidentification and hypoidentification. Antipsychotic treatment was not very effective against these delusional misidentification syndromes Conclusions: The coexistence of several delusional misidentification syndromes indicates that the aetiopathogenesis of the different types is similar. It is a field with important clinical implications, due to the poor response to treatment, as well as the possible medico-legal implications.

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The fungus Fusarium oxysporum f. sp. cubense tropical race 4 (syn. Fusarium odoratissimum) (Foc TR4) causes vascular wilt in Musaceae plants and is considered the most lethal for these crops. In Latin America and the Caribbean (LAC), it was reported for the first time in Colombia (2019), later in Peru (2021), and recently declared in Venezuela (2023). This work aimed to analyze the evolution of Foc TR4 in Musaceae in LAC between 2018 and 2022. This perspective contains a selection of topics related to Foc TR4 in LAC that address and describe (i) the threat of Foc TR4 in LAC, (ii) a bibliometric analysis of the scientific production of Foc TR4 in LAC, (iii) the current situation of Foc TR4 in Colombia, Peru, and Venezuela, (iv) medium-term prospects in LAC member countries, and (v) export trade and local food security. In this study, the presence of Foc TR4 in Venezuela and the possible consequences of the production of Musaceae in the long term were reported for the first time. In conclusion, TR4 is a major threat to banana production in Latin America and the world, and it is important to take measures to control the spread of the fungus and minimize its impact on the banana industry. It is important to keep working on the control of Foc TR4, which requires the participation of the local and international industry, researchers, and consumers, among others, to prevent the disappearance of bananas.

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Myopia is a worldwide major public concern, aside from the visual disturbance needing optical correction, myopia may be associated with open angle glaucoma, retinal detachment and myopic maculopathy. The higher the myopia the higher the risk for retinal associated comorbidities, and the axial length is the more important measure to estimate risk of visual impairment. Recently a formula to predict axial length using spherical equivalent and keratometry was proposed, with the intention of categorizing the risk of visual impairment with Tideman et al. classification. PURPOSE: To evaluate the accuracy of an axial length prediction formula in a Colombian population 8-17 years old. METHODS: Children from MIOPUR study with optical biometer axial length measure (AL), manifest refraction and keratometry were included in the analysis. Predicted axial length (PAL) was calculated with the prediction formula. A Bland-Altman assessment was conducted, and the concordance correlation coefficient was measured. Proposed classification of AL to establish risk of visual loss was used with measured AL and with PAL. The percentage of eyes misclassified was then established. RESULTS: A total of 2129 eyes were included in the analysis. Mean difference of axial length (actual AL minus PAL) was -0.516 mm (-1.559 mm - 0.528 mm). Concordance correlation coefficient (CCC) of 0.656 (IC95 0.636-0.675) was found between the real AL and PAL. PAL differed from measured AL by 1 mm or more in 16.58 %, and by 2 mm or more, in 0.61 % of the eyes. In myopic eyes, PAL was in average 0.426 mm longer than the AL actually measured with CCC of 0.714 (IC95 0.666-0.761). PAL differed from measured AL by 1 mm or more in 21.92 %, and by 2 mm or more, in 0.45 % of the myopic eyes. The study revealed that 15.03 % of all eyes, and 29.81 % of myopic eyes, were misclassified when PAL was used. CONCLUSIONS: The proposed axial length prediction formula was not accurate, and it did not adequately classify risk of visual impairment in myopic eyes in a group of Colombian children. We consider that it is not possible to predict the axial length based only on optometric data, such as the corneal radius of curvature and the spherical equivalent. This is very possibly related to the variability of crystalline lens power within a population.

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RESUMEN Introducción: La cirrosis hepática constituye la etapa final de muchas enfermedades del hígado. Objetivo: Determinar las características epidemiológicas y clínicas de pacientes con cirrosis hepática. Métodos: Se realizó una investigación descriptiva, retrospectiva, con datos de archivo, de 57 pacientes cirróticos. Se excluyeron aquellos con datos insuficientes en la historia clínica. Las variables analizadas fueron: edad, sexo, etiología, modo de diagnóstico, comorbilidades, manifestaciones endoscópicas de la hipertensión portal, complicaciones, estadios de la enfermedad según D'Amico y clasificación de Child-Pugh. Para el análisis de los resultados se emplearon técnicas de la estadística descriptiva. Resultados: Hubo 19 pacientes (33,3 %) en el grupo de edad entre 60 y 69 años; 31 (54,4 %) mujeres y 26 (45,6 %) hombres. El virus de la hepatitis C fue encontrado en 21 pacientes (36,8 %). El 96,4 % de los enfermos se diagnosticaron mediante ecografía abdominal; 12 (21,1 %) presentaron ascitis y 38 (66,6 %) manifestaciones endoscópicas de hipertensión portal. En estadio 4 de D'Amico estaban 20 (35 %) enfermos y 26 (45,6 %) en estadio de Child-Pugh A; 24 (42,1 %) en Child-Pugh B y 7 (12,3 %) en Child-Pugh C. Conclusiones: La cirrosis hepática predomina en la séptima década de la vida, en el sexo femenino. Prevalece el ultrasonido abdominal como modo de diagnóstico. Las causas más frecuentes son el virus de hepatitis C y el alcoholismo. La ascitis es la complicación que más se presenta. La mayoría de los pacientes muestran signos de hipertensión portal. Predominan las formas no compensadas de la enfermedad.

ABSTRACT Introduction: Liver cirrhosis is the end stage of many liver diseases. Objective: To determine the epidemiological and clinical characteristics of patients with liver cirrhosis. Results: There were 19 patients (33.3%) in the age group between 60 and 69 years; 31 (54,4 %) women and 26 (45,6 %) men. Hepatitis C virus was found in 21 patients (36,8 %). 96,4 % of the patients were diagnosed by abdominal ultrasound; 12 (21,1 %) presented ascites and 38 (66,6 %) endoscopic manifestations of portal hypertension. In D'Amico stage 4 there were 20 (35 %) patients and 26 (45,6 %) in Child-Pugh A stage; 24 (42,1 %) in Child-Pugh B and 7 (12,3 %) in Child-Pugh C. Conclusions: Liver cirrhosis predominates in the seventh decade of life, in females. Abdominal ultrasound prevails as a diagnostic mode. The most common causes are hepatitis C virus and alcoholism. Ascites is the most common complication. Most patients present with signs of portal hypertension. Uncompensated forms of the disease predominate.

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Introducción: La manometría esofágica de alta resolución es la prueba ideal para el diagnóstico de la acalasia y muestra la presencia de ondas terciarias o aperistalsis y el aumento de presión, con ausencia de relajación, del esfínter esofágico inferior. Objetivo: Evaluar la utilidad de la manometría esofágica de alta resolución en el diagnóstico y clasificación de la acalasia esofágica. Métodos: Se realizó una investigación descriptiva, trasversal, en el Centro Nacional de Cirugía de Mínimo Acceso entre octubre del 2018 y diciembre del 2019, en 46 pacientes con diagnóstico de acalasia esofágica. Se excluyeron aquellos con cirugía previa del esófago. Las variables incluidas fueron: edad, sexo, tiempo de evolución, síntomas y hallazgos manométricos. Para el análisis de las variables cuantitativas se emplearon medidas de tendencia central, media y de dispersión, la desviación estándar. Las frecuencias y proporciones fueron utilizadas para describir las variables cualitativas. Resultados: Predominó la acalasia tipo II, en el sexo femenino (57 por ciento). La disfagia fue el síntoma más frecuente (84, 76 y 100 por ciento en los tipos I, II y III, respectivamente). El 70 por ciento de los casos presentó más de un año de evolución de los síntomas. La media de la presión de relajación integrada estuvo por encima de 21 mmHg independientemente del tipo. No se encontraron pacientes con subtipos de la acalasia tipo III. Conclusiones: La manometría esofágica de alta resolución es útil para el diagnóstico y clasificación de la acalasia esofágica(AU)

Introduction: High-resolution esophageal manometry is the ideal test for the diagnosis of achalasia and shows the presence of tertiary waves or aperistalsis and increased pressure, in the absence of relaxation, of the lower esophageal sphincter. Objective: To assess the usefulness of high-resolution esophageal manometry in the diagnosis and classification of esophageal achalasia. Methods: A descriptive, cross-sectional investigation was carried out at the National Center for Minimal Access Surgery, between October 2018 and December 2019, in 46 patients with a diagnosis of esophageal achalasia. Those with previous esophageal surgery were excluded. The variables included were: age, sex, time of evolution, symptoms and manometric findings. For the analysis of the results, the percentage and measures of central tendency (arithmetic mean and standard deviation) were used. Results: Type II achalasia predominated in females (57 percent). Dysphagia was the most frequent symptom (84, 76, and 100 percent in types I, II, and III, respectively). 70 percent of the cases presented more than one year of evolution of the symptoms. Regarding the high-resolution manometry parameters, it was observed that regardless of the type, the mean integrated relaxation pressure was above 21 mmHg. No patients with type III achalasia subtypes were found. Conclusions: High-resolution esophageal manometry is useful for the diagnosis and classification of esophageal acalasia(AU)

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Introducción: La manometría de alta resolución es la prueba de referencia para el estudio de los trastornos motores esofágicos. Objetivo: Determinar la factibilidad de la manometría de alta resolución para el estudio de las características de los trastornos motores esofágicos. Métodos: Se realizó una investigación descriptiva, transversal, en el Centro Nacional de Cirugía de Mínimo Acceso, entre septiembre de 2018 y diciembre de 2019, en 56 pacientes cubanos con diagnóstico de trastorno motor esofágico por manometría de alta resolución, con edades entre 18 y 80 años, que dieron su consentimiento para participar en el estudio. Se excluyeron pacientes con acalasia esofágica y los trastornos menores de la peristalsis. Las variables incluidas fueron: edad, sexo, diagnósticos manométricos y sus características, síntomas, tipos de unión esofagogástrica, diagnósticos imagenológicos o endoscópicos. Para el análisis de los resultados se empleó el porcentaje, medidas de tendencia central y ji cuadrado de Pearson de homogeneidad, con un nivel de significación p 8804; 0,05 y 95 por ciento de confiabilidad. Resultados: Predominó la contractilidad ausente (39,28 por ciento), el sexo femenino (58,9 por ciento) y la disfagia (66,07 por ciento). A la obstrucción al flujo de la unión esofagogástrica correspondió la media de presión de reposo del esfínter esofágico inferior más alta (43,28 mmHg) y la media de la presión de relación integrada por encima de 15 mmHg (38,88 mmHg). El esófago hipercontráctil presentó media de contractilidad distal integrada elevada (5564,25 mmHg/s/cm). Se comprobó la existencia de contracciones rápidas en el espasmo esofágico distal (media de 21,4 cm/ s). Conclusiones: La manometría de alta resolución es factible de ser empleada para el diagnóstico de los trastornos motores esofágicos(AU)

Introduction: High-resolution manometry is the gold standard for the study of esophageal motor disorders. Objective: A descriptive, cross-sectional research was carried out in el Centro Nacional de Cirugía de Mínimo Acceso, between September 2018 and December 2019, in 56 patients, diagnosed with esophageal motor disorder by high-resolution manometry, aged between 18 and 20 years, who gave their consent to participate in the study. Esophageal achalasia and minor peristalsis disorders were excluded. The variables included were: age, sex, manometric diagnoses and their characteristics, symptoms, types of esophagogastric junction, imaging or endoscopic diagnoses. For the analysis of the results, the percentage, measures of central tendency and Pearson's chi square of homogeneity were used, with a level of statistical significance 8804; 0.05 and 95 percent reliability. Development: Absent contractility (39,28 percent), female sex (58,9 percent) and dysphagia (66,07 percent) predominated. The obstruction to the flow of the esophagogastric junction corresponded to the highest mean resting pressure of the lower esophageal sphincter (43,28 mmHg) and the mean integrated pressure ratio above 15 mmHg (38,88 mmHg). The hypercontractile esophagus presented mean high integrated distal contractility (5564,25 mmHg/s/cm). Rapid contractions were found in distal esophageal spasm (mean 21,4 cm/s). Conclusions: High resolution manometry was feasible to be used for the diagnosis of major esophageal motor disorders(AU)

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Introducción: El aneurisma de la aorta abdominal es una enfermedad que cursa, por lo general, de forma asintomática, asociado a una elevada mortalidad cuando se rompe. Se describen factores de riesgo asociados a la historia natural de esta afección. La realización de procederes terapéuticos endoscópicos, como la colangiopancreatografía retrógrada endoscópica ha sido polémica; aunque no se establece como contraindicación, presupone un alto riesgo. Objetivo: Presentar un paciente con aneurisma de la aorta abdominal, con elevado riesgo quirúrgico para realizar una colangiopancreatografía retrógrada endoscópica. Caso clínico: Se presenta un paciente con un gran aneurisma de la aorta abdominal y sospecha clínica de un ampuloma. Se le realizó terapéutica endoscópica mediante la colangiopancreatografía retrógrada endoscópica, con algunas variaciones en el procedimiento. Se logró el drenaje exitoso de la vía biliar principal, sin complicaciones. Conclusiones: La terapéutica realizada fue una opción, pero con muy alto riesgo(AU)

Introduction: The abdominal aortic aneurysm is a disease that usually occurs asymptomatically, associated with high mortality when it ruptures. Risk factors associated with the natural history of this condition are described. The performance of endoscopic therapeutic procedures, such as endoscopic retrograde cholangiopancreatography, has been controversial; although it is not established as a contraindication, it presupposes a high risk. Objective: To present a patient with an abdominal aortic aneurysm, with high surgical risk to perform an endoscopic retrograde cholangiopancreatography. Clinical case: A patient with a large abdominal aortic aneurysm and clinical suspicion of an ampuloma is presented. Endoscopic therapy was performed using endoscopic retrograde cholangiopancreatography, with some variations in the procedure. Successful drainage of the main bile duct was achieved without complications. Conclusions: The therapy carried out was an option, but with a very high risk(AU)

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BACKGROUND: 1. Colombia with 1941 known recorded bird species is one of the most species rich countries in the world. Efforts are necessary to conserve, study and promote sustainable use of this important taxonomic group throughout Colombia's vast territory.2. In an ideal world, informed decisions that are based on sound scientific information should be likelier to have successful outcomes. Nevertheless, there are barriers that make it difficult to access and use information in a timely fashion. Those same barriers impede the study, conservation and sustainable use of bird species in Colombia. On the other hand, given that there is good documentation about the ecology of a large number of species, information about the distribution of birds can be easily incorporated into decision-making processes, once this information becomes readily available in a consumable format using Geographic Information Sciences tools.3. In this context, the main objective of this paper is to present the first compilation of the current distribution of 1889 (97%) species of birds in Colombia, using expert criteria. The shapefiles were used to show the distribution and diversity of bird species in Colombia under both geopolitical and conservation geographic units.4. The information provided in this paper can be used as a baseline for a huge number of initiatives that aim to strengthen conservation efforts and improve knowledge about one the most unique taxonomic groups in the country. These range from land use planning strategies at the municipal or department scale to sustainable use of bird species - such as those initiatives related to bird watching - in Colombia. NEW INFORMATION: This study has considered three key aspects: 1) the importance of birds for Colombia's ecosystems, 2) the privileged place of Colombia in bird species richness and 3) the importance of data mobilisation in formats easily consumable by Geographic Information Systems (GIS) to facilitate the processes of informed decision-making. We present the first compilation - in shapefile format - for 1889 of the 1941 bird species recorded from Colombia. Using this novel collection, we showed the species richness of birds in Colombia's 33 Departments plus its Captial District (DPs), 1122 Municipalities (MNs), 58 protected areas (PAs), 39 Regional Autonomous Corporations (the authorities responsible within their respective jurisdictions for regulating the environment and renewable natural resources in Colombia; CARs) and 916 Collectively Titled Territories (including both indigenous reservations and afro-descendant communities; CTTs). In addition, we provide a list of known bird species richness for the above geographic units found in the available literature. The information provided here can be used as a baseline for a huge number of initiatives concerning the study, conservation and sustainable use of bird species present in Colombia, providing access to key features of bird distribution that should facilitate decision-making.

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La inteligencia artificial tiene el potencial de transformar la forma en que se brinda la atención médica. Puede respaldar mejoras en los resultados y aumentar la productividad y la eficiencia de la prestación de los servicios. En servicios de las diferentes especialidades los avances realizados a nivel hardware deben desarrollarse en paralelo con los métodos de aprendizaje automático, aspectos que la inteligencia artificial contribuye para promover un cambio de paradigma significativo en las más diversas áreas de la medicina. Es importante en la educación médica como eje para el conocimiento y en la toma de decisiones que pueden mejorar el desempeño de los profesionales. Los estudiantes de medicina de nueva generación pueden adaptarse perfectamente a los nuevos métodos digitalizados en un contexto médico globalizado, incluida la inteligencia artificial. Por ello es importante tener como objetivos a implementar en los planes de estudio e introducir programas educativos representativos de esta tecnología. Es fundamental que todas las áreas del Sistema de Salud tengan confianza en los sistemas informáticos específicamente en el aprendizaje profundo, no solo por la información concreta y objetiva que de él se deriva sino también por la posibilidad de predecir eventos futuros, brindando alta certeza en cuanto al diagnóstico y tratamiento de enfermedades.

Artificial intelligence has the potential to transform the way healthcare is delivered. You can support improved results and increase the productivity and efficiency of service delivery. In the services of the different specialties, the advances made at the hardware level must be developed in parallel with the methods of machine learning, aspects that artificial intelligence contributes to promote a significant paradigm shift in the most diverse areas of medicine. It is important in medical education as an axis for knowledge and in making decisions that can improve the performance of professionals. New generation medical students can perfectly adapt to new digitized methods in a globalized medical context, including artificial intelligence. For this reason, it is important to have as objectives to be implemented in the study plans and to introduce educational programs that are representative of this technology. It is essential that all areas of the Health System have confidence in computer systems specifically in deep learning, not only because of the concrete and objective information that is derived from it but also because of the possibility of predicting future events, providing high certainty regarding to the diagnosis and treatment of diseases.

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PURPOSE: To evaluate the endothelial cell loss in patients with iris-claw phakic lenses (Artisan®) in a long-term follow-up. METHODS: We analyzed the medical records of patients who had undergone iris-claw phakic lens implantation and who had at least 5 years of follow-up. RESULTS: We included 67 eyes with myopic errors (follow-up 9.6 ± 3.0 years) and 10 eyes with mixed astigmatism or hyperopic errors (follow-up 8.8 ± 2.5 years). The mean total endothelial density loss at the last follow-up visit was 18.5% ± 17.0% and 10.5% ± 12.3%, respectively. 29.9% of the eyes in the myopic group and 20% in the hyperopic group lost more than 25% of the preoperative endothelial cell density. During the postoperative follow-up period, 60.8% of the eyes in the myopic group and 40% of the eyes in the hyperopic group lost a higher percentage than the expected physiological loss. Two eyes in the myopic group (3.0%) had a final cell density of less than 1200 cells/mm2. None of the variables studied had a statistically significant association with the percentage of annual endothelial loss in the postoperative period. Three phakic lenses were explanted: two by cataract and one by cataract and severe decrease of the endothelial density (862 cells/mm2). CONCLUSIONS: There is a significant endothelial cell loss in a low percentage of the eyes with Artisan® lenses in the long term, and it can decrease to critical levels. Periodic endothelial density evaluations are required for these patients. The selection criteria of surgical candidates could be reevaluated.

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MYC overexpression is considered a driver event in gastric cancer (GC), and is frequently correlated with poor prognosis and metastasis. In this study, we evaluated the prognostic value of genes upregulated by MYC in patients with GC. Metastatic GC cells (AGP01) characterized by MYC amplification, were transfected with siRNAs targeting MYC. RNA-seq was performed in silenced and non-silenced AGP01 cells. Among the differentially expressed genes, CIAPIN1, MTA2, and UXT were validated using qRT-PCR, western blot, and immunohistochemistry in gastric tissues of 213 patients with GC; and their expressions were correlated with clinicopathological and survival data. High mRNA and protein levels of CIAPIN1, MTA2, and UXT were strongly associated with advanced GC stages (P < 0.0001). However, only CIAPIN1 and UXT gene expressions were able to predict distant metastases in patients with early-stage GC (P < 0.0001), with high sensitivity (> 92%) and specificity (> 90%). Overall survival rate of patients with overexpressed CIAPIN1 or UXT was significantly lower (P < 0.0001). In conclusion, CIAPIN1 and UXT may serve as potential molecular markers for GC prognosis.

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Despite the availability of efficient methods to evaluate blood pressure (BP) and of safe and efficient medication to treat and control hypertension, the levels of awareness, treatment and control are very low globally, particularly in low- and middle-income countries. To highlight the importance of improving these rates, the International Society of Hypertension (ISH) endorsed by the World Hypertension League have implemented the May Measurement Month initiative. We present here the results obtained in Colombia. The Fundación Oftalmológica de Santander (FOSCAL) led the implementation of this strategy in Colombia and 11 departments participated. The data collection followed the guidelines of the ISH. The information collected was compiled for the report generation and the submission to the Technical Secretariat of the ISH. Data cleaning was performed locally by FOSCAL. Data were collated and analysed centrally. A total of 22 258 participants (58.8% female) were included in the analysis. Mean age was 40.9 ± 17.7 years. Age and sex-standardized BP excluding participants receiving BP medications was 118/74.3 mmHg, and in those on treatment 125/78 mmHg. High BP was present in 5036 (22.8%) individuals, 1637 of 18 644 (8.8%) who were not receiving anti-hypertensive medications were hypertensive, and 961 of 3359 (28.6%) receiving treatment were not controlled. These results highlight the need to develop innovative promotion strategies at individual and population levels to increase the awareness of the importance of BP, and the consequences of not having well-controlled hypertension. This initiative is an effective and easy to implement strategy that should be maintained in the coming years.

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Introducción. Diversas condiciones oftalmológicas son causas de consultas a los servicios de urgencias. El objetivo de este trabajo fue determinar las causas más comunes de consulta al servicio de urgencias oftalmológicas de una institución terciaria en Colombia y, así, poder explorar en el futuro la posibilidad de identificar algunas medidas preventivas dirigidas a disminuir la frecuencia de esas causas. Metodología. Estudio descriptivo retrospectivo basado en los registros de pacientes que asistieron al servicio de urgencias durante los años 2014 y 2015. Las patologías se identificaron a partir de los códigos de la Clasificación Internacional de Enfermedades, CIE-10. Resultados. Se identificaron 9,088 y 8,162 registros para los años 2014 y 2015, respectivamente. Las causas de consulta a urgencias oftalmológicas más frecuentes para el año 2014 fueron: cuerpo extraño en la córnea o en la conjuntiva con un 20.2 % de los casos, conjuntivitis aguda no especificada con 11.3 %, traumatismo de la conjuntiva y abrasión corneal con 8.3 %, hemorragia conjuntival con 5.8 % y quemaduras corneales con 4.7 %. En el año 2015, las causas fueron: cuerpo extraño en la córnea o en la conjuntiva (23.6 %), traumatismo de la conjuntiva y abrasión corneal (9.0 %), conjuntivitis aguda no especificada (8.9 %), hemorragia conjuntival (4.4 %) y quemaduras corneales (4.0 %). Discusión. Las causas más frecuentes de consulta a urgencias oftalmológicas incluyeron los traumas y las infecciones del segmento anterior del ojo. Conclusiones. Existe la posibilidad de identificar algunas medidas preventivas (elementos de protección adecuados, protocolos de conducta en situaciones de riesgo, etc.) que ayuden a disminuir la frecuencia de traumas oculares y minimicen el riesgo de infecciones. Hay, entonces, cabida para más estudios en los que se analicen los mecanismos específicos de estas lesiones. Cómo citar. Galvis V, Díaz AL, Ochoa ME, Rey JJ, Ardila LC, Olivero LP, Tello A. Principales causas de consulta de urgencias oftalmológicas en un instituto de atención terciaria en Colombia. MedUNAB 2019;22(2):153-161. doi:10.29375/01237047.3489

Introduction. Several ophthalmological conditions are causes of consultations to the emergency services. The objective of this study was to determine the most common causes of consultation to the ophthalmological emergency service of a tertiary institution in Colombia and thus be able to explore in the future the possibility of identifying some preventive measures aimed at reducing the frequency of these causes. Methodology. Retrospective descriptive study based on the records of patients attending the emergency department during 2014 and 2015, identifying the diseases based on the International Classification of Diseases (ICD-10) codes. Results. 9,088 and 8,162 records were identified for 2014 and 2015, respectively. The most frequent causes of ophthalmologic urgency consultation for the year 2014 were: corneal or conjunctive foreign body with 20.2 %, acute conjunctivitis not specified 11.3 %, conjunctival trauma and corneal abrasion 8.3 %, conjunctival haemorrh age 5.8 % and corneal burns 4.7 %. In 2015 the causes were: foreign body in the cornea or conjunctiva (23.6 %), conjunctival trauma and corneal abrasion (9.0 %), acute unspecified conjunctivitis (8.9 %), conjunctival hemorrhage (4.4 %), and corneal burns (4.0 %). Discussion. The most frequent causes of consultation with ophthalmologic emergencies included trauma and infections of the anterior segment of the eye. Conclusions. There is a possibility of identifying some preventive measures (adequate protection elements, behavior protocols in situations of risk, etc.) that help to reduce the frequency of eye traumas and minimize the risk of infections. There is room for more studies in which the specific mechanisms of these injuries are analyzed. Cómo citar: Galvis V, Díaz AL, Ochoa ME, Rey JJ, Ardila LC, Olivero LP, Tello A. Principales causas de consulta de urgencias oftalmológicas en un instituto de atención terciaria en Colombia. MedUNAB 2019;22(2):153-161. doi:10.29375/01237047.3489

Introdução. Várias condições oftalmológicas são causas de atendimento nos serviços de emergência. O objetivo deste trabalho foi determinar as causas mais comuns de atendimento oftalmológico emergencial em uma instituição terciária na Colômbia e, assim, poder explorar no futuro a possibilidade de identificar algumas medidas preventivas para reduzir a frequência dessas causas. Métodos. Estudo descritivo retrospectivo baseado nos registros de pacientes que compareceram ao serviço de emergência oftalmológica durante os anos 2014 e 2015. As patologias foram identificadas a partir dos códigos da Classificação Internacional de Doenças, CID-10. Resultados. Foram identificados 9,088 e 8,162 registros para os anos 2014 e 2015, respectivamente. As causas de atendimento oftalmológico emergencial mais frequentes em 2014 foram: corpo estranho na córnea ou na conjuntiva com 20,2 % dos casos, conjuntivite aguda não especificada com 11,3 %, trauma conjuntival e abrasão corneana com 8,3 %, hemorragia conjuntival com 5,8 % e queimaduras corneanas com 4,7 %. No ano 2015, as causas foram: corpo estranho na córnea ou na conjuntiva (23,6 %), trauma conjuntival e abrasão corneana (9,0 %), conjuntivite aguda não especificada (8,9 %), hemorragia conjuntival (4,4 %) e queimaduras corneanas (4,0 %). Discussão. As causas mais frequentes de atendimento oftalmológico emergencial incluíram traumas e infecções do segmento anterior do olho. Conclusões. Existe a possibilidade de identificar algumas medidas preventivas (elementos de proteção adequados, protocolos de conduta em situações de risco, etc.) que ajudem na redução da frequência de trauma ocular e para minimizar o risco de infecções. Há, então, espaço para mais estudos que analisem os mecanismos específicos dessas lesões Cómo citar. Galvis V, Díaz AL, Ochoa ME, Rey JJ, Ardila LC, Olivero LP, Tello A. Principales causas de consulta de urgencias oftalmológicas en un instituto de atención terciaria en Colombia. MedUNAB 2019;22(2):153-161. doi:10.29375/01237047.3489

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MYC is an oncogene responsible for excessive cell growth in cancer, enabling transcriptional activation of genes involved in cell cycle regulation, metabolism, and apoptosis, and is usually overexpressed in gastric cancer (GC). By using siRNA and Next-Generation Sequencing (NGS), we identified MYC-regulated differentially expressed Genes (DEGs) in three Brazilian gastric cancer cell lines representing the histological subtypes of GC (diffuse, intestinal, and metastasis). The DEGs were picked using Sailfish software, followed by Gene Set Enrichment Analysis (GSEA) and Kyoto Encyclopedia of Gene and Genome (KEGG) pathway analysis using KEGG. We found 11 significantly enriched gene sets by using enrichment score (ES), False Discovery Rate (FDR), and nominal P-values. We identified a total of 5.471 DEGs with correlation over (80%). In diffuse-type and in metastatic GC cell lines, MYC-silencing caused DEGs downregulation, while the intestinal-type GC cells presented overall DEGs upregulation after MYC siRNA depletion. We were able to detect 11 significant gene sets when comparing our samples to the hallmark collection of gene expression, enriched mostly for the following hallmarks: proliferation, pathway, signaling, metabolic, and DNA damage response. When we analyzed our DEGs considering KEGG metabolic pathways, we found 12 common branches covering a wide range of biological functions, and three of them were common to all three cell lines: ubiquitin-mediated proteolysis, ribosomes, and system and epithelial cell signaling in Helicobacter pylori infection. The GC cell lines used in this study share 14 MYC-regulated genes, but their gene expression profile is different for each histological subtype of GC. Our results present a computational analysis of MYC-related signatures in GC, and we present evidence that GC cell lines representing distinct histological subtypes of this disease have different MYC-regulated expression profiles but share a common core of altered genes. This is an important step towards the understanding of MYC's role in gastric carcinogenesis and an indication of probable new drug targets in stomach cancer.

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