Ibero-American Consensus Review and Incorporation of New Biomarkers for Clinical Practice in Colorectal Cancer.

Advances in genomic technologies have significantly improved the management of colorectal cancer (CRC). Several biomarkers have been identified in CRC that enable personalization in the use of biologic agents that have shown to enhance the clinical outcomes of patients. However, technologies used for their determination generate massive amounts of information that can be difficult for the clinician to interpret and use adequately. Through several discussion meetings, a group of oncology experts from Spain and several Latin American countries reviewed the latest literature to provide practical recommendations on the determination of biomarkers in CRC based on their clinical experience. The article also describes the importance of looking for additional prognostic biomarkers and the use of histopathology to establish an adequate molecular classification. Present and future of immunotherapy biomarkers in CRC patients are also discussed, together with several techniques for marker determination, including liquid biopsy, next-generation sequencing (NGS), polymerase chain reaction (PCR), and fecal immunohistochemical tests. Finally, the role of Molecular Tumor Boards in the diagnosis and treatment of CRC is described. All of this information will allow us to highlight the importance of biomarker determination in CRC.

Anti-Inflammatory Chilean Endemic Plants.

Medicinal plants have been used since prehistoric times and continue to treat several diseases as a fundamental part of the healing process. Inflammation is a condition characterized by redness, pain, and swelling. This process is a hard response by living tissue to any injury. Furthermore, inflammation is produced by various diseases such as rheumatic and immune-mediated conditions, cancer, cardiovascular diseases, obesity, and diabetes. Hence, anti-inflammatory-based treatments could emerge as a novel and exciting approach to treating these diseases. Medicinal plants and their secondary metabolites are known for their anti-inflammatory properties, and this review introduces various native Chilean plants whose anti-inflammatory effects have been evaluated in experimental studies. Fragaria chiloensis, Ugni molinae, Buddleja globosa, Aristotelia chilensis, Berberis microphylla, and Quillaja saponaria are some native species analyzed in this review. Since inflammation treatment is not a one-dimensional solution, this review seeks a multidimensional therapeutic approach to inflammation with plant extracts based on scientific and ancestral knowledge.

The script clinical reasoning test An internal medicine educational practice perspective

One of the main skills in internal medicine is clinical decision making. To make clinical decisions, physicians in training reorganize their knowledge in order to optimally perform their clinical functions (diagnosis, research methods and treatment), which are organized according to disease scripts. This ability develops with experience and is acquired during their academic training. The script concordance test has been described as an innovative evaluation tool, designed to evaluate clinical decision making (clinical reasoning) in addition to the degree of knowledge. The script theory, understood as the organization of knowledge, is the basis for decision making. Disease scripts play a key role in supporting and developing clinical reasoning skills, which should be acquired in order to produce differential diagnoses and interpret clinical data. (Acta Med Colomb 2022; 48. DOI:https://doi.org/10.36104/amc.2023.2569).

Increase of c-FOS promoter transcriptional activity by the dual leucine zipper kinase.

The dual leucine zipper kinase (DLK) and the ubiquitously expressed transcription factor c-FOS have important roles in beta-cell proliferation and function. Some studies in neuronal cells suggest that DLK can influence c-FOS expression. Given that c-FOS is mainly regulated at the transcriptional level, the effect of DLK on c-FOS promoter activity was investigated in the beta-cell line HIT. The methods used in this study are the following: Luciferase reporter gene assays, immunoblot analysis, CRISPR-Cas9-mediated genome editing, and real-time quantitative PCR. In the beta-cell line HIT, overexpressed DLK increased c-FOS promoter activity twofold. Using 5'-,3'-promoter deletions, the promoter regions from - 348 to - 339 base pairs (bp) and from a - 284 to - 53 bp conferred basal activity, whereas the promoter region from - 711 to - 348 bp and from - 53 to + 48 bp mediated DLK responsiveness. Mutation of the cAMP response element within the promoter prevented the stimulatory effect of DLK. Treatment of HIT cells with KCl and the adenylate cyclase activator forskolin increased c-FOS promoter transcriptional activity ninefold. Since the transcriptional activity of those promoter fragments activated by KCl and forskolin was decreased by DLK, DLK might interfere with KCl/forskolin-induced signaling. In a newly generated, genome-edited HIT cell line lacking catalytically active DLK, c-Fos mRNA levels were reduced by 80% compared to the wild-type cell line. DLK increased c-FOS promoter activity but decreased stimulated transcriptional activity, suggesting that DLK fine-tunes c-FOS promoter-dependent gene transcription. Moreover, at least in HIT cells, DLK is required for FOS mRNA expression.

Mixoma odontogénico de larga data en el maxilar. Reporte de caso / Long-Standing odontogenic myxoma of the maxilla. Case Report

Introducción: el mixoma odontogénico es una neoplasia benigna, poco frecuente, de origen mesenquimal proveniente del órgano dentario, es localmente invasivo y no hace metástasis. Su localización más frecuente es a nivel de la mandíbula y poco frecuente en el maxilar. Objetivo: describir las características que presenta un mixoma odontogénico de larga data en el maxilar. Presentación del caso: paciente de sexo masculino de 23 años de edad, soltero, de profesión comerciante, acude a la Catedra de Patología Bucal de la Facultad de Odontología de la Universidad Nacional de Asunción por presentar una deformidad en la región facial del lado derecho, presente desde la infancia con crecimiento lento sin sintomatología dolorosa. Se realizó una biopsia incisional, tomando una muestra de más de 1 cm de la capsula tumoral para su estudio histopatológico; a partir de la cual se informa sobre un tumor odontogénico mesenquimal compatible con el mixoma odontogénico. Se realizó el tratamiento de una maxilectomía con márgenes de seguridad y el estudio anatomopatológico de todo el tumor extirpado confirmó el diagnóstico de Mixofibroma odontogénico de 2,5 cm de diámetro máximo. Conclusión: un diagnóstico precoz de tumores como los mixomas, que son de crecimiento lento e infiltrante, podría garantizar terapéuticas menos agresivas e invasivas como las del caso presentado, otorgando así mejor pronóstico como calidad de vida a los pacientes.

Introduction: Odontogenic myxoma is a rare benign neoplasm of mesenchymal origin originating from the dental organ, it is locally invasive and does not metastasize. Its most frequent location is at the level of the mandible and infrequently in the maxilla. Objective: To describe the characteristics of a long-standing odontogenic myxoma in the maxilla. Presentation of the case: Male patient, 23 years of age, single, businessman, came to the Department of Oral Pathology of the Faculty of Dentistry of the National University of Asuncion for presenting a deformity in the facial region on the right side, present since childhood with slow growth and no painful symptomatology. An incisional biopsy was performed, taking a sample of more than 1cm of the tumor capsule, for histopathological study; reporting a mesenchymal odontogenic tumor compatible with odontogenic myxoma. A maxillectomy treatment with safety margins performed and the anatomopathological study of the entire excised tumor confirmed the diagnosis of odontogenic myxofibroma with a maximum diameter of 2.5 cm. Conclusion: An early diagnosis of tumors such as myxomas, which are slow-growing and infiltrative, could guarantee less aggressive and invasive therapies such as those in the case presented, thus providing patients with a better prognosis and quality of life.

Una mirada al tratamiento actual de la estomatitis aftosa recurrente. Revisión de la literatura / A look at the current management of recurrent aphthous stomatitis: scoping review

Resumen La estomatitis aftosa recurrente (EAR) es una patología ulcerativa crónica idiopática, que, aunque no llega a comprometer la vida de los pacientes, si puede desmejorar su calidad de vida. Presenta una alta incidencia en la población con un alto porcentaje de recurrencia. Atendiendo a su importancia, el objetivo de esta revisión es brindar una actualización respecto a las terapias farmacológicas y con láser para el manejo de la estomatitis aftosa recurrente. Se realizó una búsqueda bibliográfica en las bases de datos PubMed, Science Direct, EBSCO HOST y LILACS desde enero de 2010 a octubre de 2020, identificando publicaciones en inglés y español. Los artículos que fueron incluidos debían estar relacionadas con la estomatitis aftosa y su tratamiento, enfocándose en el manejo farmacológico o con láser. La estrategia de búsqueda arrojó 4536 citas bibliográficas, de las cuales fueron incluidas 19 en esta presente revisión. La mayoría de los estudios fueron ensayos clínicos aleatorizados donde la población objeto fueron adultos que demostraron el uso de antiinflamatorios, inmunomoduladores, anticuerpos monoclonales, antisépticos, anestésicos, entre otros, para el manejo de la estomatitis aftosa recurrente. De los artículos analizados se pudo concluir que la terapia farmacológica debe ser instaurada de manera particular, de acuerdo a la clínica y antecedentes del paciente. Los fármacos de primera elección son de uso tópico, reservando los de uso sistémico para casos moderados o severos y para pacientes con tratamiento refractarios, asimismo, las recomendaciones coadyuvantes como alimentación e higiene pueden ayudar a la resolución de la enfermedad. La terapia láser surge como alternativa de tratamiento con bajo riesgo y buenos resultados para la EAR.

Abstract Recurrent Aphthous Stomatitis (RAS) is an idiopathic chronic ulcerative pathology. Although it does not compromise the life of the patients, it can impair their quality of life. It presents a high incidence in the population and a high percentage of recurrence. In view of its importance, the aim of this review is to provide an update on pharmacological and laser therapies that are being implemented for the management of RAS. A bibliographic search of literature that was published between January 2010 and October 2020 was performed in PubMed, Science Direct, EBSCOhost, and LILACS databases, identifying publications in English and Spanish languages. The articles that were included had to be related to aphthous stomatitis and its treatment, focusing on pharmacological or laser management. 4536 bibliographic citations were found and 19 of them were included in this review. Most of the studies were randomized clinical trials in which the target population were adults that reported the use of anti-inflammatory drugs, immunomodulators, monoclonal antibodies, antiseptics, anesthetics, among others for the treatment of recurrent aphthous stomatitis. From the articles analyzed, it was possible to conclude that pharmacological therapy should be established in a particular way according to the patient's symptoms and medical record. The first-choice drugs are of topical use, reserving those of systemic use for moderate or severe cases and for patients with refractory treatment. Likewise, adjuvant recommendations such as nutrition and hygiene can help in the resolution of the disease. Laser therapy emerges as an alternative treatment with low risk and positive results for recurrent aphthous stomatitis.

Abriendo la caja de Pandora: ¿qué contienen los instrumentos que miden el ambiente de aprendizaje en medicina? / Opening Pandoras Box: What is the Content of the Instruments Measuring the Learning Environment in Medicine?

RESUMEN Introducción/objetivo: La medición del ambiente de aprendizaje en medicina es fundamental para evaluar la calidad de la educación médica. Existen múltiples instrumentos diseñados para este propósito, pero su contenido, fundamento teórico y utilidad práctica son variables. El objetivo de este estudio es sintetizar la validez de contenido y alcance de estos instrumentos. Métodos: Se realizó una revisión sistemática de la literatura de estudios originales en idioma inglés y español publicados desde 1990 hasta 2018 en las bases de datos de Pubmed, ERIC, British Nursing Index, Google Scholar, Science Direct, Cochrane, CINALH y Latindex, que contienen instrumentos para medir el ambiente de aprendizaje en medicina. Se analizaron los dominios, fundamentos teóricos y métodos para determinar la validez de contenido. Resultados: Se incluyeron treinta y ocho estudios que evaluaron doce instrumentos (uno disponible en español). Dos instrumentos identificados fueron específicos para el ambiente quirúrgico y uno para el comunitario. Únicamente tres instrumentos estuvieron respaldados por una teoría educativa. Los dominios más frecuentemente evaluados fueron la atmosfera del aprendizaje, la percepción social y percepción académica. La validez de contenido se estableció principalmente mediante un panel de expertos o método Delphi en el 83,3 % de los instrumentos. Conclusiones: Existen diversos instrumentos para evaluar un constructo complejo como el ambiente de aprendizaje en medicina. En general, estos instrumentos cuentan con validez de contenido respaldada por múltiples fuentes y metodologías, y pueden ser utilizados por los educadores médicos para evaluar de forma integral el ambiente de aprendizaje.

ABSTRACT Introduction/aim: The measurement of the learning environment in medicine is fundamental to assess the quality of medical education. Multiple instruments are available for this purpose, but their content, theoretical foundations and practical implications variate. Our aim is to synthesize the content validity and scope of these instruments. Methods: We conducted a systematic review of original studies designed to measure the learning environment in medicine, published in English and Spanish languages, from 1990 to 2018. We search for studies in Pubmed, ERIC, British Nursing Index, Google Scholar, Science Direct, Cochrane, CINALH and Latindex. We analyzed the main domains, theoretical foundations and methods to determine the content validity of each instrument. Results: Thirty-eight studies evaluating twelve instruments (one available in Spanish) were included. Two instruments were specific for the surgical environment and one for the community. Only three instruments were supported by an educational theory. The domains most frequently evaluated were the atmosphere, social perception and academic perception of learning. The content validity was established through expert panels or Delphi method in 83,3 % of the instruments. Conclusions: There are several instruments to evaluate a complex construct such as the learning environment in medicine. In general, these instruments have content validity supported by multiple sources and methodologies and they can be used by medical educators to assess the learning environment comprehensively.

CRIP1 expression in monocytes related to hypertension.

Hypertension is a complex and multifactorial disorder caused by lifestyle and environmental factors, inflammation and disease-related genetic factors and is a risk factor for stroke, ischemic heart disease and renal failure. Although circulating monocytes and tissue macrophages contribute to the pathogenesis of hypertension, the underlying mechanisms are poorly understood. Cysteine rich protein 1 (CRIP1) is highly expressed in immune cells, and CRIP1 mRNA expression in monocytes associates with blood pressure (BP) and is up-regulated by proinflammatory modulation suggesting a link between CRIP1 and BP regulation through the immune system. To address this functional link, we studied CRIP1 expression in immune cells in relation to BP using a human cohort study and hypertensive mouse models. CRIP1 expression in splenic monocytes/macrophages and in circulating monocytes was significantly affected by angiotensin II (Ang II) in a BP-elevating dose (2 mg/kg/day). In the human cohort study, monocytic CRIP1 expression levels were associated with elevated BP, whereas upon differentiation of monocytes to macrophages this association along with the CRIP1 expression level was diminished. In conclusion, CRIP1-positive circulating and splenic monocytes seem to play an important role in hypertension related inflammatory processes through endogenous hormones such as Ang II. These findings suggest that CRIP1 may affect the interaction between the immune system, in particular monocytes, and the pathogenesis of hypertension.

[Reversed halo sign as an unusual manifestation of cryptogenic organized pneumonia. Report of one case]. / Signo del halo invertido como manifestación inhabitual de neumonía organizada criptogénica. Reporte de un caso.

We report a 64 years old female admitted with fever, cough, dyspnea and lung opacities in the chest X ray. A chest tomography scan (CTS) showed multiple-bilateral ring-shaped opacities and the reversed halo sign (RHS). The patient did not improve with antimicrobial therapy (AT). Infection and rheumatologic causes were excluded, therefore Cryptogenic organizing pneumonia (COP) was suspected with compatible percutaneous biopsy. Systemic steroids were started with a good clinical response. The patient was discharged four weeks after admission in good general conditions and practically no lungs opacities.

Profilaxis y educación en migraña y cefalea tensional: una percepción de la eficacia de las prácticas de los médicos de atención primaria / Prophylaxis and education for migraine and tension type headache: a perception of the effectiveness of the practices of primary health physicians

RESUMEN INTRODUCCIÓN: La migraña y la cefalea tipo tensional son los dolores de cabeza primarios más frecuentes en la consulta médica; la mejoría clínica de los pacientes se relaciona con la educación brindada y la prescripción de tratamientos profilácticos por parte de sus médicos tratantes. OBJETIVO: Determinar la frecuencia de prescripción del tratamiento profiláctico y de la realización de explicaciones educativas al paciente con cefalea primaria por parte de los médicos de atención primaria, además de los factores asociados a ellas. MATERIALES Y MÉTODOS: Estudio de corte transversal con 152 pacientes con criterios para migraña o cefalea tensional de la ICHD y con indicación para tratamiento profiláctico según las guías canadienses, que fueron atendidos por médicos de atención primaria. Se aplicó un cuestionario para establecer el tipo de prácticas realizadas por los profesionales y se realizó un análisis univariado y bivariado. RESULTADOS: Solo al 23 % de los pacientes le formularon tratamiento profiláctico, el 56 % nunca recibió explicación educativa sobre su enfermedad y el 70 °% nunca había sido remitido a consulta de neurología. El 44 °% respondió no saber sobre el origen de la cefalea y se encontró una asociación significativa entre el nivel educativo del paciente y el hecho que le ofrecieran explicación educativa. CONCLUSION: La frecuencia en la formulación de profilaxis farmacológica y realización de explicaciones educativas al paciente por parte del médico de atención primaria fue baja. Esto puede relacionarse con un desconocimiento de los protocolos de manejo en cefalea primaria y fallas en las habilidades clínicas recibidas en el pregrado.

SUMMARY INTRODUCTION: Migraine and tension type headache are the most frequent primary headaches in the medical practice; the clinical improvement of the patients is related to the education carry out by his physician and the prescription of prophylactic treatments. Migraine and tension-type headache are the most frequent primary headaches in the medical office; the clinical improvement of the patients is related to the education provided and the prescription of prophylactic treatments by their treating doctors. OBJECTIVE: To determine the frequency of prescription of prophylactic treatment and of educational explanations to the patient with primary headache by primary care physicians, and the possible factors associated with them. MATERIALS AND METHODS: Cross-sectional study with 152 patients that have Migraine or Tensional Headache according to the ICHD criteria and that had an indication for prophylactic treatment according to the Canadian guidelines for the prophylaxis management of patients with migraine, which were attended by primary care physicians. Application of a questionnaire to establish the type of practices carried out by professionals; an univariate and bivariate analysis was performed. RESULTS: 56 °% of the patients never received an educational explanation about their disease, 70 °% had never been referred to a neurology consultation previously, and 23 % had been prescribed prophylactic treatment. 44 °% answered not knowing about the origin of the headache and found a significant association between the educational level of the patient and the fact that they offered educational explanation. CONCLUSION: The frequency of formulation of pharmacological prophylaxis and the performance of educational explanations to the patient by the Primary Care Physician was very low; This may be related to a lack of knowledge of management protocols in primary headache and to flaws in the clinical skills previously obtained in undergraduate training.

Survey on hypoglycemia among insulin-treated patients with diabetes: The Colombian International Operations Hypoglycemia Assessment Tool population / Encuesta sobre hipoglucemia en pacientes con diabetes tratados con insulina: la población colombiana del International Operations Hypoglycemia Assessment Tool

Abstract Introduction: The non-interventional International Operations Hypoglycemia Assessment Tool (IO-HAT) study assessed the incidence of hypoglycemia in patients with insulin-treated diabetes across nine countries, including a cohort of patients in Colombia. Materials and methods: Hypoglycemia incidence among patients with insulin-treated diabetes was assessed across 26 sites in Colombia. Hypoglycaemic events (any, nocturnal or severe) were reported in self-assessment questionnaires (SAQ) and patient diaries based on capillary blood glucose measurement or symptoms. Retrospective events (severe events 6 months before baseline and any event 4 weeks before baseline) were recorded in SAQ, Part 1, and prospective events (4 weeks from baseline) were recorded in SAQ, Part 2, and patient diaries. Differences in hypoglycemia incidence reported in the retrospective and prospective periods were assessed using two-sided tests. Results: Of the 664 patients assessed, 213 had type 1 diabetes (T1D) and 451 had type 2 diabetes (T2D). Nearly all patients experienced at least one hypoglycaemic event in the prospective period (97.1% T1D; 93.3% T2D). Rates of hypoglycemia (events per person- year, PPY) were higher prospectively than retrospectively for any hypoglycemia (T1 D: 121.6 vs. 83.2, p<0.001; T2D: 28.1 vs. 24.6, p=0.127) and severe hypoglycemia (T 1D: 15.3 vs. 9.2, p=0.605; T 2 D: 9.5 vs. 3.5 p=0.040). Conclusion: These results, the first from a patient-reported dataset on hypoglycemia in insulin-treated patients with diabetes in Colombia, show that patients reported higher rates of any hypoglycemia during the prospective period.

Resumen Introducción. En el estudio no intervencionista International Operations Hypoglycemia Assessment Tool (IO-HAT), se evalúo la incidencia de hipoglucemia en pacientes diabéticos tratados con insulina en nueve países, incluido Colombia. Materiales y métodos. La incidencia de hipoglucemia entre pacientes diabéticos tratados con insulina se evaluó en 26 centros médicos en Colombia. Los episodios de hipoglucemia determinados con base en la medición de la glucemia capilar o en los síntomas se reportaron en el cuestionario de autoevaluación (Self-Assessment Questionnaire, SAQ) y en el diario del paciente. Los episodios retrospectivos (episodios graves y cualquiera ocurrido 6 meses y 4 semanas antes del inicio del estudio, respectivamente) se registraron en el SAQ, parte 1, y los eventos prospectivos (4 semanas desde el inicio), en el SAQ, parte 2, y en el diario del paciente. Las diferencias en la incidencia de la hipoglucemia entre los períodos retrospectivo y prospectivo se evaluaron mediante una prueba de dos colas. Resultados. De los 664 pacientes evaluados, 213 tenían diabetes de tipo 1 y 451 tenían diabetes de tipo 2. Casi todos los pacientes experimentaron al menos un episodio de hipoglucemia en el período prospectivo (97,1 %, diabetes de tipo 1, y 93,3 %, diabetes de tipo 2). Los índices de hipoglucemia (episodios año-persona) fueron mayores prospectivamente que retrospectivamente para cualquier tipo de hipoglucemia (diabetes de tipo 1: 121,6 Vs. 83,2; p<0,001; la diabetes de tipo 2: 28,1 Vs. 24,6; p=0,127) y para la hipoglucemia grave (diabetes de tipo 1: 15,3 Vs. 9,2; p=0,605; diabetes de tipo 2: 9,5 Vs. 3,5; p=0,040). Conclusión. Estos resultados, que constituyen el primer conjunto de datos sobre hipoglucemia informados por pacientes diabéticos colombianos tratados con insulina, evidenciaron tasas más altas para ambos tipos de hipoglucemia durante el período prospectivo.

Signo del halo invertido como manifestación inhabitual de neumonía organizada criptogénica: reporte de un caso / Reversed halo sign as an unusual manifestation of cryptogenic organized pneumonia: report of one case

We report a 64 years old female admitted with fever, cough, dyspnea and lung opacities in the chest X ray. A chest tomography scan (CTS) showed multiple-bilateral ring-shaped opacities and the reversed halo sign (RHS). The patient did not improve with antimicrobial therapy (AT). Infection and rheumatologic causes were excluded, therefore Cryptogenic organizing pneumonia (COP) was suspected with compatible percutaneous biopsy. Systemic steroids were started with a good clinical response. The patient was discharged four weeks after admission in good general conditions and practically no lungs opacities.

Prevalencia, posibles asociaciones y características de niños entre los 2 y 4 años de edad con desórdenes gastrointestinales funcionales de Cali, Colombia / Prevalence, possible associations and characteristics of functional gastrointestinal disorders in children between 2 and 4 years of age in Cali, Colombia

Resumen Introducción: los estudios en desórdenes gastrointestinales funcionales (DGF) de preescolares son escasos. Objetivo: describir la prevalencia, posibles asociaciones y características en preescolares con DGF de consulta externa privada y hospitalaria de Cali, Colombia. Materiales y métodos: estudio descriptivo tipo prevalencia en niños entre los 2 y 4 años de edad. Los padres y/o tutores respondieron los Criterios de Roma III en español. Se tuvieron en cuenta variables sociodemográficas, familiares y clínicas. El análisis estadístico incluyó medidas de tendencia central, t-student a dos colas, chi cuadrado (χ2) y prueba exacta de Fisher; análisis uni y multivariados, cálculo de Odds ratio (OR) e intervalo de confianza (IC) 95 %, siendo una p <0,05 estadísticamente significativa. Resultados: se incluyeron 188 niños (3,4 ± 0,7 años, 51,6 % de sexo masculino, 63,3 % de consulta privada). Hubo una prevalencia del 39,9 %, 36,2 %, 2,7 % y 1,1 % para DGF, estreñimiento funcional (EF), diarrea funcional (DF) y síndrome de vómito cíclico (SVC), respectivamente. Los principales síntomas fueron para EF, heces 2 o menos veces por semana y dolor al defecar. Hubo predominio cuando tenían padres separados/divorciados. Conclusión: La prevalencia de DGF fue alta, siendo la principal causa el EF y su posible factor de riesgo, tener padres separados/divorciados.

Abstract Introduction: Studies of functional gastrointestinal disorders (FGDs) among preschoolers are scarce. Objective: The objective of this study is to describe the prevalence, possible associations and characteristics of pre-school children with FGDs from private clinics and hospital outpatient clinics in Cali, Colombia. Materials and method: This is a descriptive study of prevalence in children between 2 and 4 years of age. The parents and/or guardians responded to the Rome III Criteria in Spanish. Sociodemographic, family and clinical variables were taken into account. The statistical analysis included measures of central tendency, two-tailed Student's t-tests, chi-square tests, Fisher's exact test, univariate and multivariate analyses, and calculation of ORs and 95% CI with p <0.05 established as statistically significant. Results: One hundred eighty-eight children were included (3.4 ± 0.7 years, 51.6% male, 63.3% private consultation) The prevalence of FGDs was 39.9%, the prevalence of functional constipation was 36.2%, the prevalence of functional diarrhea was 2.7% and the prevalence of cyclic vomiting syndrome was 1.1%. The main symptoms were for functional constipation were two or less bowel movements pre week and pain during defecation. Functional constipation was predominant when the patient had separated or divorced parents. Conclusion: The prevalence of FGDs was high and was the main cause of functional constipation. A possible risk factor is separated or divorced parents.

The proteome map of the escamolera ant (Liometopum apiculatum Mayr) larvae reveals immunogenic proteins and several hexamerin proteoforms.

The larvae of escamolera ant (Liometopum apiculatum Mayr) have been considered a delicacy since Pre-Hispanic times. The increased demand for this stew has led to massive collection of ant nests. Yet biological aspects of L. apiculatum larvae remain unknown, and mapping the proteome of this species is important for understanding its biological characteristics. Two-dimensional gel electrophoresis (2-DE) followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis was used to characterize the larvae proteome profile. From 380 protein spots analyzed, 174 were identified by LC-MS/MS and homology search against the Hymenoptera subset of the NCBInr protein database using the Mascot search engine. Peptide de novo sequencing and homology-based alignment allowed the identification of 36 additional protein spots. Identified proteins were classified by cellular location, molecular function, and biological process according to the Gene Ontology annotation. Immunity- and defense-related proteins were identified including PPIases, FK506, PEBP, and chitinases. Several hexamerin proteoforms were identified and the cDNA of the most abundant protein detected in the 2-DE map was isolated and characterized. L. apiculatum hexamerin (LaHEX, GeneBank accession no. MH256667) contains an open reading frame of 2199 bp encoding a polypeptide of 733 amino acid residues with a calculated molecular mass of 82.41 kDa. LaHEX protein is more similar to HEX110 than HEX70 from Apis mellifera. Down-regulation of LaHEX was observed throughout ant development. This work represents the first proteome map as well as the first hexamerin characterized from L. apiculatum larvae.

TNFα-induced DLK activation contributes to apoptosis in the beta-cell line HIT.

Reduction in beta-cell mass and function contributes to the pathogenesis of diabetes mellitus type 2. The proinflammatory cytokines tumor necrosis factor (TNF)α and interleukin (IL)-1ß have been implicated in the pathogenesis of this disease. Overexpression of the dual leucine zipper kinase (DLK) inhibits beta-cell function and induces apoptosis in the beta-cell line HIT. In the present study, it was investigated whether TNFα or IL-1ß stimulates DLK enzymatic activity. Immunoblot analysis, transient transfection with luciferase reporter gene assays, and immunofluorescence were used. In contrast to IL-1ß, TNFα stimulated DLK kinase activity, which was dependent on the c-Jun N-terminal kinase (JNK). Furthermore, DLK contributed to TNFα-induced JNK phosphorylation. The phosphorylation of DLK on Ser-302 within the activation loop was required for DLK to stimulate JNK and to inhibit CREB-dependent gene transcription. TNFα induced apoptosis in a time- and concentration-dependent manner and inhibited CREB-directed gene transcription in HIT cells. The reduction of endogenous DLK by small interfering or small hairpin RNA attenuated TNFα's effects on apoptosis and CREB-dependent transcription. These data suggest that TNFα induces beta-cell apoptosis through activation of DLK thereby inhibiting the beta-cell protective transcription factor CREB. Furthermore, activation of DLK by a well-known diabetic risk factor supports the role of DLK in the pathogenesis of diabetes mellitus. Thus, the inhibition of DLK might prevent or retard the pathogenesis of diabetes mellitus type 2.

Tableta masticable de lecitina de soya: de subproducto a producto farmacéutico / Chewable pill of soy phosphatidylcholine: from by-product to pharmaceutical product

En el Laboratorio Farmacéutico Oriente de Santiago de Cuba se acometió el desarrollo de una tableta masticable de lecitina de soya con fines de registro y ulterior producción, lo cual se realizó durante el bienio 2011-2013. Se utilizaron excipientes de calidad farmacéutica, los métodos analíticos de la Farmacopea de los Estados Unidos, edición 35/Formulario Nacional, edición 30 del 2012, así como la tecnología de granulación húmeda y compresión directa. La lecitina fue caracterizada como materia prima farmacéutica y la tableta desarrollada cumplió con los atributos de calidad establecidos, por lo cual se registró con estabilidad comprobada de 2 años. Se suministró valor agregado a esta sustancia, con riesgo potencial de acumulación para el medio ambiente, como producto farmacéutico nuevo en Cuba

The development of a chewable pill of soy phosphatidylcholilne was undertaken in Oriente Pharmaceutical Laboratory from Santiago de Cuba with registration ends and subsequent production, that was carried out during the biennium 2011-2013. Excipients of pharmaceutical quality, the analytic methods of the United States Pharmacopoeia, edition 35/National Form, 2012 30th edition, as well as the technology of humid granulation and direct compression were used. Phosphatidylcholine was characterized as pharmaceutical raw material and the developed pill fulfilled the established quality attributes, reason why it was registered with 2 years proven stability. Added value was given to this substance, with potential risk of accumulation for the environment, as new pharmaceutical product in Cuba

Análisis de experiencias y dispositivos en construcción de paz desde una perspectiva intergeneracional-intercultural / Analysis of experiences and devices in peace-building from an intergenerational-intercultural perspective / Análise de experiências e dispositivos em construção de paz desde uma perspectiva intergeneracional-intercultural

Este artículo aborda las categorías intergeneracionalidad e interculturalidad como ejes de análisis de las experiencias y del dispositivo desarrollado por el Secretariado Nacional de Pastoral Social (SNPS), para propiciar la configuración de subjetividades políticas de paz y la transformación social. De igual forma, se explora el concepto de dispositivo que permite identificar los elementos de la propuesta metodológica de “Intervención para la transformación social” del SNPS.

This article discusses the categories intergenerational and interculturalas axes of analysis of experiences and the device developed by the National Secretariat of SocialPastoral (SNPS), to promote political subjectivities configuration peace and social transformation. Similarly, the concept of device that identifies the elements of the methodology of “Intervention forsocial transformation” of SNPS is explored.

Este artigo discute o intergeracional e intercultural categorias comoeixos de análise de experiências eo dispositivo desenvolvido pela Secretaria Nacional de PastoralSocial (SNPS), para promover a paz configuração de subjetividades política e transformaçãosocial. Da mesma forma , o conceito de dispositivo que identifica os elementos da metodologia de“intervenção para a transformação social “ de SNPS é explorado.

Synchronous Ovarian and Appendiceal Mucinous Neoplasms in the Absence of Pseudomyxoma Peritonei.

BACKGROUND: Synchronous ovarian/appendiceal mucinous neoplasms sometimes occur in the absence of clinical pseudomyxoma peritonei (PMP), which raises a question about whether the 2 tumors could be independent. METHODS: We identified 11 cases of synchronous ovarian/appendiceal mucinous neoplasms without PMP and subclassified them into groups 1 and 2 based on the presence or absence of microscopic peritoneal/ovarian surface mucin deposits. A 7-marker panel (CK7, CK20, CDX2, PAX8, MUC1, MUC2, and MUC5AC) immunohistochemistry was performed on both tumors. RESULTS: Between the 2 groups, there were no significant differences in age, laterality, size, and histology of ovarian/appendiceal tumors. In group 1, 2 of 4 cases developed PMP later, and both had ovarian surface and contralateral ovarian involvement and appendiceal perforation with microscopic mucin deposits on the peritoneum. No patients in group 2 developed PMP. All group 1 cases showed a high degree of concordance of immunoprofile between the synchronous tumors, with an identical expression of appendiceal pattern in greater than 90% of the markers. In group 2, only 1 of 7 cases showed concordance in all markers. CONCLUSIONS: If peritoneal mucin deposits present, even microscopic and acellular, the synchronous tumors are most likely of a single appendiceal origin. Otherwise, they are more heterogeneous, and some may be truly dual primaries.

Hacia una epistemología evolutiva extendida: la retroalimentación entre variación y selección / Toward an Extended Evolutionary Epistemology: Feedback Between Variation and Selection

Este artículo se sitúa en la perspectiva de la naturalización del conocimiento científico, toda vez que es un intento por caracterizar y describir la evolución del conocimiento a partir de nociones de la biología. El objetivo principal es responder si es posible sostener la analogía que propone la epistemología evolutiva (EE): que la evolución del conocimiento científico (ECC) es similar a la evolución orgánica (EO). La pregunta surge tras las críticas que han atacado el núcleo de la analogía. La respuesta es que la analogía sí se sostiene si se tienen en cuenta las relaciones de retroalimentación, y que es posible proponer a la luz de la síntesis extendida (SE), una teoría posterior que complementa la síntesis moderna (SM). Así, este trabajo comienza con una descripción del estado de la "epistemología evolutiva", prosigue señalando por qué la síntesis moderna, que sirvió de base para su formulación, no es suficiente para fundamentar la epistemología evolutiva y finaliza proponiendo que es pertinente una modificación que puede describirse como "epistemología evolutiva extendida".

This paper is situated from naturalized epistemology perspective. It is an attempt to describe the evolution of knowledge using the theoretical structure of the evolution of species. The main objective of this work is to address whether is it possible to maintain the analogy in evolutionary epistemology and which aspects of the evolution of knowledge are similar to organic evolution? This question arises after some critics against the nucleus of its formulation. The analysis presented in this work suggests that the evolution of the knowledge can be understand through an framework analogous to that of the theory of organic evolution. For this, is necessary to take into account novel feedbacks relations between variation and selection, which are part of the Extended Synthesis theory. In such way, this paper begins with an introduction to evolutionary epistemology. After that, it shows why modern synthesis theory is not enough to maintain this kind of epistemology. It ended with the idea of an extended evolutionary epistemology.