Isolation of chitosan from Ganoderma lucidum mushroom for biomedical applications.

Chitin biopolymer production and its by-product chitosan show great potential. These biomaterials have great applicability in various fields because they are non-toxic, biodegradable, biocompatible, and have antimicrobial effects. The most common source of chitin and chitosan is the crustaceous shell; however, mushrooms are an alternative source for isolating these biopolymers because their cellular wall has a high content of chitin, which may be transformed into chitosan through a deacetylation reaction. The main objective of this research was to obtain chitosan through the deacetylation of chitin isolated from the Ganoderma lucidum basidiomycetes mushroom, which is obtained through biotechnological culture. The material characterization was performed using X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, and an evaluation of cytotoxicity comparing the results obtained with results for commercial chitosan. Protocol results showed that chitosan obtained from this mushroom had a significant similitude with commercial chitosan, yet the one obtained using P2 protocol was the one that rendered the best results: including diffractogram peaks, characteristic infrared analysis bands, and an 80.29 % degree of deacetylation. Cytotoxicity in vitro testing showed that the material was non-toxic; furthermore, it rendered very promising information regarding the evaluation of future applications of this biomaterial in the field of biomedicine.

Development and Evaluation of Chitosan-Based Food Coatings for Exotic Fruit Preservation.

Chitosan has gained agro-industrial interest due to its potential applications in food preservation. In this work, chitosan applications for exotic fruit coating, using feijoa as a case of study, were evaluated. For this, we synthetized and characterized chitosan from shrimp shells and tested its performance. Chemical formulations for coating preparation using chitosan were proposed and tested. Mechanical properties, porosity, permeability, and fungal and bactericidal characteristics were used to verify the potential application of the film in the protection of fruits. The results indicated that synthetized chitosan has comparable properties to commercial chitosan (deacetylation degree > 82%), and, for the case of feijoa, the chitosan coating achieved significant reduction of microorganisms and fungal growth (0 UFC/mL for sample 3). Further, membrane permeability allowed oxygen exchange suitable for fruit freshness and natural physiological weight loss, thus delaying oxidative degradation and prolonging shelf-life. Chitosan's characteristic of a permeable film proved to be a promising alternative for the protection and extension of the freshness of post-harvest exotic fruits.

Dietary intake assessment in a group of breastfeeding women in two populations of Antioquia, Colombia, 2021-2022 / Evaluación de ingesta dietética en un grupo de mujeres lactantes en dos poblaciones de Antioquia, Colombia, 2021-2022

Objectives: To describe the prevalence of the risk of under or overnutrition and the food intake pattern vis à vis the recommendations of the Ministry of Health and Social Protection and the Colombian Family Welfare Institute. Material and methods: Descriptive cross-sectional study carried out in healthy women receiving care in two hospitals of eastern Antioquia, with food and nutrition security in accordance with the Latin American and Caribbean Food Security Scale (ELCSA), in the first trimester of breastfeeding, assessed between 2021 and 2022. The clinical record was used as the source of information. The sociodemographic, clinical, anthropometric characteristics, as well as dietary and micronutrient intake, were measured. Descriptive statistics were used. The prevalence of deficient or excessive energy intake and the food consumption score (FCS) are presented. The EVINDI v5, PC-SIDE v1.0, Stata 16.1 and Jasp 0.16.4 software packages were used. Results: Overall, 30 breastfeeding women were included. The prevalence of the risk of deficient energy intake was 43 %, while the risk of excessive intake was 16 % and the risk of protein deficiency was 98 %. Intake exceeding the reference value for saturated fats was 86 %, and 72 % for simple carbohydrates. The consumption pattern was characterized by exceeding the recommendations for sugars (FCS = 1.29), milk and dairy products (FCS = 1.09), grains, roots, plantains and tubers (FCS = 1.04). Recommendations for the intake of fats (FCS = 0.70), meats, eggs, legumes, nuts, seeds (FCS = 0.49), fruits and vegetables (FCS = 0.41 were not met. Conclusions: The food intake pattern identified is far from meeting the national guidelines, limiting macro and micronutrient intake and contributing to the intergenerational malnutrition cycle. Additional research in the country is essential in order to identify other intake patterns and drive political action.

Objetivos: describir la prevalencia del riesgo de deficiencia o exceso en la ingesta de nutrientes y el patrón de consumo de alimentos de acuerdo con las recomendaciones establecidas por el Ministerio de Salud y Protección Social y el Instituto Colombiano de Bienestar Familiar. Materiales y métodos: se realizó un estudio transversal descriptivo en mujeres sanas que fueron atendidas en dos hospitales del oriente antoqueño, con seguridad alimentaria y nutricional (SAN) según la Escala Latinoamericana y Caribeña de Seguridad Alimentaria (ELCSA), en el primer trimestre de lactancia, evaluadas entre los años 2021 y 2022. La fuente de información fue la historia clínica. Se midieron las características sociodemográficas, clínicas, antropométricas y la ingesta dietética y de micronutrientes. Se empleó estadística descriptiva. Se presenta la prevalencia de déficit o exceso de ingesta calórica y el índice de relación de consumo (IRC). Se utilizaron los software EVINDI v5, PCSIDE v1.0, Stata 16.1 y Jasp 0.16.4. Resultados: se incluyeron 30 mujeres lactantes. La prevalencia de riesgo de deficiencia en la ingesta usual de energía fue 43 % y exceso 16 %; el riesgo de deficiencia proteica fue 98 %. El consumo superior al valor de referencia para grasa saturada fue 86 % y carbohidratos simples 72 %. El patrón de consumo se caracterizó por superar las recomendaciones para azúcares (IRC = 1,29), leche y derivados (IRC = 1,09), cereales, raíces, plátanos y tubérculos (IRC = 1,04). No cumplieron las recomendaciones en la ingesta de grasas (IRC = 0,70), carnes, huevos, leguminosas, frutos secos y semillas (IRC = 0,49), frutas y verduras (IRC = 0,41). Conclusiones: el patrón alimentario identificado dista de las guías nacionales, lo que limita el consumo de macro y micronutrientes, y contribuye al círculo intergeneracional de la malnutrición. Es fundamental realizar nuevas investigaciones en el país para identificar otros patrones de consumo e impulsar acciones de política al respecto.

Maternal Diet May Modulate Breast Milk Microbiota-A Case Study in a Group of Colombian Women.

There is increasing evidence that the diet and nutritional status of women during pregnancy and lactation can modulate the microbiota of their milk and, therefore, the microbiota of the infant. An observational, descriptive, and cross-sectional study was carried out in a group of lactating women. Dietary intake during gestation and the first trimester of lactation was evaluated, and the microbiota was analyzed by 16S ribosomal RNA (rRNA) sequencing using the Illumina platform. Globally, Streptococcus spp. (32%), Staphylococcus spp. (17.3%), Corynebacterium spp. (5.1%) and Veillonella spp. (3.1%) were the predominant bacterial genera. The consumption of simple carbohydrates in gestation (rho = 0.55, p ≤ 0.01) and lactation (rho = 0.50, p ≤ 0.01) were positively correlated with Enterobacter spp. In lactation, a negative correlation was observed between the intake of simple carbohydrates and the genus Bifidobacterium spp. (rho = -0.51 p ≤ 0.01); furthermore, a positive correlation was identified between the intake of folic acid and Akkermansia spp. (rho = 0.47, p ≤ 0.01). Amplicon sequence variants (ASVs) associated with the delivery mode, employment relationship, the baby's gender, birth weight, the Body Mass Index (BMI) of the breastfeeding woman, and gestational weight gain were recovered as covariates in a linear mixed model. The results of this research showed that the maternal nutritional status and diet of women during gestation and lactation could modulate the microbiota of breast milk.

Breastfeeding experiences from the perspective of the breastfeeding woman: qualitative study / Experiencias en lactancia materna, vivencia desde la mujer que amamanta: estudio cualitativo

Objectives: To understand the breastfeeding experience from the perspective of a group of women who breastfeed for the first time. Materials and Methods: Qualitative study from an ethnographic perspective, focusing on a group of women from the eastern region of the Department of Antioquia (Colombia). Intentional sampling until data saturation was used. The group included 16 first-time breastfeeding mothers aged 18 or older, with children under 24 months of age and who were breastfeeding or had breastfed exclusively for at least three months. Semi-structured interviews and participant observations were carried out. Data were analyzed by triangulation and open and axial coding. The results are presented in the form of category descriptions. Results: Four categories were identified in relation to the breastfeeding experience: exhaustion and pain dispelled by love, breastfeeding and the new order of things, emotions of a woman embodied in a mother, and breastfeeding as a social act. Conclusions: Protection of breastfeeding requires special attention to the woman as a subject beyond the act of breastfeeding, giving priority to her physical and emotional health as essential elements that must be kept in mind by healthcare professionals. Studies to assess the effects of creating support groups that foster the exchange of insights to help the breastfeeding woman are required.

Objetivos: comprender las experiencias sobre la lactancia materna desde la perspectiva de las mujeres, en un grupo de madres lactantes primerizas. Materiales y métodos: estudio cualitativo, bajo la perspectiva de etnografía, enfocado en un grupo de mujeres de la región oriente del departamento de Antioquia (Colombia). Por muestreo intencional y hasta la saturación de los datos se seleccionaron 16 mujeres lactantes primerizas, de 18 años o más, con hijos menores de 24 meses y que se encontraran amantando o hubiesen amantado de forma exclusiva al menos durante tres meses. Se realizaron entrevistas semiestructuradas y observación participante; el análisis de los datos se desarrolló por triangulación y codificación abierta y axial. Los resultados se presentan a través de la descripción de categorías. Resultados: se identificaron cuatro categorías frente a la experiencia del amamantamiento: el agotamiento y el dolor que se disipan con amor, la lactancia y el nuevo orden de las cosas, las emociones de una mujer en el cuerpo de una madre y  la lactancia: un acto social. Conclusiones: proteger la lactancia materna requiere poner especial cuidado a la mujer como sujeto, más allá del amamantamiento, dando prioridad a su salud física y emocional como elementos esenciales que deben ser considerados por los profesionales en salud. Se requieren estudios que evalúen los efectos de la creación de grupos de apoyo que propicien el intercambio de saberes para acompañar a la mujer lactante.

Molecular evidence confirms the taxonomic separation of Lutzomyia tihuiliensis from Lutzomyia pia (Diptera: Psychodidae) and the usefulness of pleural pigmentation patterns in species identification.

The phlebotomine sand flies Lutzomyia pia (Fairchild & Hertig 1961) and Lutzomyia tihuiliensis Le Pont, Torrez-Espejo & Dujardin 1997 (Diptera: Psychodidae) belong to the pia series of the Lu. verrucarum species group, which includes several species that bite humans in Andean foci of leishmaniasis. The females of these two species exhibit isometry and isomorphism in anatomical structures of the head and terminalia commonly used in taxonomic identification of sand flies. They can only be differentiated based on subtle differences in the pigmentation of the pleura. In Lu. tihuiliensis, this is restricted to the basal portions of the katepimeron and katepisternum, whereas in Lu. pia both structures are totally pigmented. Taking into account the subtle morphological differences between these species, the objective of the current study was to evaluate the specific taxonomic status of Lu. tihuiliensis with respect to Lu. pia. A 475-bp portion of the mitochondrial genome was sequenced, composed of the 3' end of the cytochrome b gene, intergenic spacer 1, the transfer RNA gene for serine, intergenic spacer 2, and the 3' end of the gene NAD dehydrogenase 1. Genetic analysis confirms that Lu. tihuiliensis and Lu. pia constitute two distinct species and this is supported by four strong lines of evidence, i.e., the paired genetic distances, size differences and amino acid composition of the cytochrome b protein, presence and absence of intergenic spacer one and divergence observed in the sequence of the transfer RNA gene for serine. It also confirms the validity of the pleural pigmentation pattern as a species diagnostic character and the importance of performing a detailed examination of this character during morphological determination of phlebotomine sand flies in the series pia.

Biofuncionalización de superficies a base de fibroína de seda para su potencial uso en aplicaciones cardiovasculares

En el presente trabajo, se biofuncionalizaron con heparina películas fabricadas a base de fibroína (SF) y polivinil alcohol (PVA) utilizando dos técnicas diferentes, la primera por acople de carbodiimida y la segunda por aprovechamiento de interacciones electrostáticas, buscando conseguir un comportamiento antitrombogénico en la superficie de las películas fabricas para su potencial uso como biomateriales para la fabricación de implantes cardiovasculares. Las muestras biofuncionalizadas fueron sometidas a una prueba de coagulación de sangre para verificar el éxito de dicha biofuncionalización. Los resultados mostraron que las muestras biofuncionalizadas por acople de carbodiimida, además de presentar una actividad antitrombogénica superior a las biofuncionalizadas por aprovechamiento de interacciones electrostáticas, presentaban valores de ángulos de contacto más cercanos a los de los materiales para la fabricación de implantes cardiovasculares, y que también, la biofuncionalización no afecta significativamente las propiedades mecánicas y superficiales de las películas fabricadas.

In the present work, fibroin, and polyvinyl alcohol (PVA) - based films were biofunctionalized using two different techniques, the first by carbodiimide coupling and second by exploiting electrostatic interactions, seeking to achieve antithrombogenic behavior on the surface of the manufactured films for their potential use as biomaterials for the manufacture of cardiovascular implants. The biofunctionalized samples were submitted to the blood clotting test to verify the success of said biofunctionalization. The results showed that the samples biofunctionalized by carbodiimide coupling, in addition to presenting a higher antithrombogenic activity than those biofunctionalized by taking advantage of electrostatic interactions, presented contact angles values closer to those of the materials for the manufacture of cardiovascular implants, and that also, the biofunctionalization does not significantly affect the mechanical and surface properties of the fabricated films

Estrategia de apropiación social del conocimiento en la isquemia cardiaca / Strategy for the social appropriation of knowledge in myocardial ischemia

Introducción: La construcción de conocimiento a partir del intercambio de saberes entre pacientes, familias y equipo de salud es una necesidad sentida que puede impactar en la educación en salud y la adherencia a los tratamientos. Objetivo: Desarrollar una estrategia de apropiación social que permita innovar en el cuidado de la salud de las personas con enfermedad isquémica cardiaca y sus familias mediante el uso de la herramienta MHealth. Materiales y Métodos: Estudio exploratorio que permitió el diseño de una estrategia de apropiación social de conocimiento para mejorar la salud cardiovascular de personas que sufren isquemia cardiaca. Participaron 31 personas entre pacientes, familiares, profesionales de la salud. Se desarrollaron dos talleres virtuales en el mes de junio y seguimientos telefónicos entre agosto y septiembre. Las experiencias y saberes de los participantes, permitió la construcción de la herramienta MHealth. Resultados: La reflexión crítica entre los actores facilitó la construcción y desarrollo de la herramienta tipo MHealth (página web/app) titulada "Cuidando tu corazón", que permite el acceso a información relacionada con el cuidado durante la isquemia cardiaca y articula información a partir del diálogo de saberes y la evidencia reportada en la literatura. Discusión: Las estrategias de apropiación social son una herramienta relevante para la generación de conocimiento en el área de la salud. Conclusiones: La estrategia implementada permitió reconocer la importancia de contar con herramientas para el cuidado de la salud cardiovascular elaboradas desde las necesidades, perspectivas y creencias de sus actores para mejorar la educación y el cuidado.

Introduction: The construction of knowledge from the exchange of knowledge between patients, families, and healthcare teams is a felt need that can impact health education and adherence to treatment. Objective: To develop a social appropriation strategy that enables innovation in the health care of people with ischemic heart disease and their families through the use of an MHealth tool. Materials and methods: Exploratory study that allowed the design of a strategy for the social appropriation of knowledge to improve the cardiovascular health of people suffering from myocardial ischemia. Thirty-one people participated, including patients, family members, and health professionals. Two virtual workshops were held in June, and follow-up phone calls were made between August and September. The participant's experiences and knowledge enabled the construction of the MHealth tool. Results: The critical reflection of the stakeholders facilitated the construction and development of the MHealth tool (webpage/app) named "Cuidando tu corazón" (Taking care of your heart). Discussion: Social appropriation strategies are a relevant tool for knowledge creation in health. Conclusions: The strategy implemented made it possible to recognize the importance of developing cardiovascular healthcare tools from stakeholders' needs, perspectives, and beliefs to improve education and care.

Introdução: A construção do conhecimento a partir da troca de conhecimentos entre pacientes, familiares e equipe de saúde é uma necessidade sentida que pode impactar na educação em saúde e na adesão aos tratamentos. Objetivo: Desenvolver uma estratégia de apropriação social que permita inovar na atenção à saúde de pessoas com doença isquêmica do coração e seus familiares por meio do uso da ferramenta MHealth. Materiais e Métodos: Estudo exploratório que permitiu desenhar uma estratégia de apropriação social do conhecimento para melhorar a saúde cardiovascular de pessoas com isquemia cardíaca. Participaram 31 pessoas, entre pacientes, familiares e profissionais de saúde. Foram realizadas dois seminários virtuais em junho e acompanhamentos por telefone entre agosto e setembro. As experiências e conhecimentos dos participantes permitiram a construção da ferramenta MHealth. Resultados: A reflexão crítica entre os atores facilitou a construção e desenvolvimento da ferramenta do tipo MHealth (página web/ aplicativo) intitulada "Cuidando do seu coração", que permite o acesso às informações relacionadas aos cuidados durante a isquemia cardíaca e articula as informações a partir do diálogo de conhecimento e as evidências relatadas na literatura. Discussão: As estratégias de apropriação social são uma ferramenta relevante para a geração de conhecimento na área da saúde. Conclusões: A estratégia implementada possibilitou reconhecer a importância de ter ferramentas para o cuidado à saúde cardiovascular elaboradas a partir das necessidades, perspectivas e crenças de seus atores para melhorar a educação e o cuidado.

Evaluación de ingesta dietética en un grupo de mujeres lactantes en dos poblaciones de Antioquia, Colombia, 2021-2022 / Dietary intake assessment in a group of breastfeeding women in two populations of Antioquia, Colombia, 2021-2022

Objetivos: Describir la prevalencia del riesgo de deficiencia o exceso en la ingesta de nutrientes y el patrón de consumo de alimentos de acuerdo con las recomendaciones establecidas por el Ministerio de Salud y Protección Social y el Instituto Colombiano de Bienestar Familiar. Materiales y métodos: Se realizó un estudio transversal descriptivo en mujeres sanas que fueron atendidas en dos hospitales del oriente antioqueño, con seguridad alimentaria y nutricional (SAN) según la Escala Latinoamericana y Caribeña de Seguridad Alimentaria (ELCSA), en el primer trimestre de lactancia, evaluadas entre los años 2021 y 2022. La fuente de información fue la historia clínica. Se midieron las características sociodemográficas, clínicas, antropométricas y la ingesta dietética y de micronutrientes. Se empleó estadística descriptiva. Se presenta la prevalencia de déficit o exceso de ingesta calórica y el índice de relación de consumo (IRC). Se utilizaron los software EVINDI v5, PC-SIDE v1.0, Stata 16.1 y Jasp 0.16.4. Resultados: Se incluyeron 30 mujeres lactantes. La prevalencia de riesgo de deficiencia en la ingesta usual de energía fue 43 % y exceso 16 %; el riesgo de deficiencia proteica fue 98 %. El consumo superior al valor de referencia para grasa saturada fue 86 % y carbohidratos simples 72 %. El patrón de consumo se caracterizó por superar las recomendaciones para azúcares (IRC = 1,29), leche y derivados (IRC = 1,09), cereales, raíces, plátanos y tubérculos (IRC = 1,04). No cumplieron las recomendaciones en la ingesta de grasas (IRC = 0,70), carnes, huevos, leguminosas, frutos secos y semillas (IRC = 0,49), frutas y verduras (IRC = 0,41). Conclusiones: El patrón alimentario identificado dista de las guías nacionales, lo que limita el consumo de macro y micronutrientes, y contribuye al círculo intergeneracional de la malnutrición. Es fundamental realizar nuevas investigaciones en el país para identificar otros patrones de consumo e impulsar acciones de política al respecto.

Objectives: To describe the prevalence of the risk of under or overnutrition and the food intake pattern vis á vis the recommendations of the Ministry of Health and Social Protection and the Colombian Family Welfare Institute. Material and methods: Descriptive cross-sectional study carried out in healthy women receiving care in two hospitals of eastern Antioquia, with food and nutrition security in accordance with the Latin American and Caribbean Food Security Scale (ELCSA), in the first trimester of breastfeeding, assessed between 2021 and 2022. The clinical record was used as the source of information. The sociodemographic, clinical, anthropometric characteristics, as well as dietary and micronutrient intake, were measured. Descriptive statistics were used. The prevalence of deficient or excessive energy intake and the food consumption score (FCS) are presented. The EVINDI v5, PC-SIDE v1.0, Stata 16.1 and Jasp 0.16.4 software packages were used. Results: Overall, 30 breastfeeding women were included. The prevalence of the risk of deficient energy intake was 43 %, while the risk of excessive intake was 16 % and the risk of protein deficiency was 98 %. Intake exceeding the reference value for saturated fats was 86 %, and 72 % for simple carbohydrates. The consumption pattern was characterized by exceeding the recommendations for sugars (FCS = 1.29), milk and dairy products (FCS = 1.09), grains, roots, plantains and tubers (FCS = 1.04). Recommendations for the intake of fats (FCS = 0.70), meats, eggs, legumes, nuts, seeds (FCS = 0.49), fruits and vegetables (FCS = 0.41) were not met. Conclusions: The food intake pattern identified is far from meeting the national guidelines, limiting macro and micronutrient intake and contributing to the intergenerational malnutrition cycle. Additional research in the country is essential in order to identify other intake patterns and drive political action.

Experiencias en lactancia materna, vivencia desde la mujer que amamanta: estudio cualitativo / Breastfeeding experiences from the perspective of the breastfeeding woman: qualitative study

Objetivos: Comprender las experiencias sobre la lactancia materna desde la perspectiva de las mujeres, en un grupo de madres lactantes primerizas. Materiales y métodos: Estudio cualitativo, bajo la perspectiva de etnografía, enfocado en un grupo de mujeres de la región oriente del departamento de Antioquia (Colombia). Por muestreo intencional y hasta la saturación de los datos se seleccionaron 16 mujeres lactantes primerizas, de 18 años o más, con hijos menores de 24 meses y que se encontraran amantando o hubiesen amantado de forma exclusiva al menos durante tres meses. Se realizaron entrevistas semiestructuradas y observación participante; el análisis de los datos se desarrolló por triangulación y codificación abierta y axial. Los resultados se presentan a través de la descripción de categorías. Resultados: Se identificaron cuatro categorías frente a la experiencia del amamantamiento: el agotamiento y el dolor que se disipan con amor, la lactancia y el nuevo orden de las cosas, las emociones de una mujer en el cuerpo de una madre y la lactancia: un acto social. Conclusiones: Proteger la lactancia materna requiere poner especial cuidado a la mujer como sujeto, más allá del amamantamiento, dando prioridad a su salud física y emocional como elementos esenciales que deben ser considerados por los profesionales en salud. Se requieren estudios que evalúen los efectos de la creación de grupos de apoyo que propicien el intercambio de saberes para acompañar a la mujer lactante

Objectives: To understand the breastfeeding experience from the perspective of a group of women who breastfeed for the first time. Material and methods: Qualitative study from an ethnographic perspective, focusing on a group of women from the eastern region of the Department of Antioquia (Colombia). Intentional sampling until data saturation was used. The group included 16 first-time breastfeeding mothers aged 18 or older, with children under 24 months of age and who were breastfeeding or had breastfed exclusively for at least three months. Semi-structured interviews and participant observations were carried out. Data were analyzed by triangulation and open and axial coding. The results are presented in the form of category descriptions. Results: Four categories were identified in relation to the breastfeeding experience: exhaustion and pain dispelled by love, breastfeeding and the new order of things, emotions of a woman embodied in a mother, and breastfeeding as a social act. Conclusions: Protection of breastfeeding requires special attention to the woman as a subject beyond the act of breastfeeding, giving priority to her physical and emotional health as essential elements that must be kept in mind by healthcare professionals. Studies to assess the effects of creating support groups that foster the exchange of insights to help the breastfeeding woman are required.

Uso de empagliflozina en pacientes diabéticos tipo 2 con insuficiencia cardíaca

Resumen: Introducción: La insuficiencia cardíaca es una patología con alta prevalencia y morbimortalidad. Entre las estrategias terapéuticas se debe considerar el abordaje de las comorbilidades, entre ellas la diabetes mellitus tipo 2. Los pacientes con insuficiencia cardíaca que la asocian, tienen 75% más riesgo de hospitalización y mortalidad. La Food and Drug Administration ha enfatizado desde 2008 que todo nuevo hipoglucemiante debe tener un efecto beneficioso o al menos neutro a nivel cardiovascular. Varios estudios han demostrado que los inhibidores del cotransportador sodio glucosa tipo 2 (empagliflozina, canagliflozina y dapagliflozina) cumplen con estos requerimientos. El objetivo de este trabajo es describir la experiencia en "vida real" de la empagliflozina en pacientes con diabetes mellitus 2 e insuficiencia cardíaca con fracción de eyección reducida. Metodología: Se realizó un estudio prospectivo, longitudinal, entre julio 2019 - abril 2021 en una Unidad Multidisciplinaria de Insuficiencia Cardíaca. Resultados: Se incluyeron 25 pacientes Se incluyeron 25 pacientes (13 hombres) con edad media 61 años. La dosis objetivo de empagliflozina se alcanzó en el 95% de los pacientes. Se observó un descenso de peso, hemoglobina glicosilada y glicemia de ayunas. Conclusiones: La empagliflozina presentó buena tolerabilidad, con efectos beneficiosos a nivel cardiovascular y mínimos efectos adversos.

Abstract: Introduction: Heart failure is a pathology with high prevalence and morbidity and mortality. Among the therapeutic strategies, addressing comorbidities should be considered, including type 2 diabetes mellitus. Patients with associated heart failure have a 75% higher risk of hospitalization and mortality. The Food and Drug Administration has emphasized since 2008 that all new hypoglycemic agents must have a beneficial or at least neutral effect at the cardiovascular level. Several studies have shown that sodium-glucose cotransporter 2 inhibitors (empagliflozin, canagliflozin, and dapagliflozin) meet these requirements. The objective of this work is to describe the "real life" experience of empagliflozin in patients with type 2 diabetes mellitus and heart failure with reduced ejection fraction. Methodology: A prospective, longitudinal study was carried out between July 2019 and April 2021 in a Multidisciplinary Heart Failure Unit. Results: Twenty-five patients (13 men) with a mean age of 61 years were included. The target dose of empagliflozin was achieved in 95% of patients. A decrease in weight, glycosylated hemoglobin and fasting blood glucose was observed. Conclusions: Empagliflozin presented good tolerability, with beneficial effects at the cardiovascular level and minimal adverse effects.

Resumo: Introdução: A insuficiência cardíaca é uma patologia com alta prevalência e morbidade e mortalidade. Dentre as estratégias terapêuticas, deve-se considerar a abordagem de comorbidades, incluindo diabetes mellitus tipo 2. Pacientes com insuficiência cardíaca associada apresentam risco 75% maior de hospitalização e mortalidade. A Food and Drug Administration tem enfatizado desde 2008 que todos os novos agentes hipoglicemiantes devem ter um efeito benéfico ou pelo menos neutro no nível cardiovascular. Vários estudos mostraram que os inibidores do cotransportador 2 de sódio-glicose (empagliflozina, canagliflozina e dapagliflozina) atendem a esses requisitos. O objetivo deste trabalho é descrever a experiência da "vida real" da empagliflozina em pacientes com diabetes mellitus tipo 2 e insuficiência cardíaca com fração de ejeção reduzida. Metodologia: Foi realizado um estudo prospectivo, longitudinal, entre julho de 2019 e abril de 2021 em uma Unidade Multidisciplinar de Insuficiência Cardíaca. Resultados: Vinte e cinco pacientes (13 homens) com idade média de 61 anos foram incluídos. A dose alvo de empagliflozina foi alcançada em 95% dos pacientes. Observou-se diminuição do peso, da hemoglobina glicosilada e da glicemia de jejum. Conclusões: A empagliflozina apresentou boa tolerabilidade, com efeitos benéficos a nível cardiovascular e efeitos adversos mínimos.

[First finding of Lutzomyia tihuiliensis (Diptera: Psychodidae) in the Valle de Aburrá, Colombia]. / Primer hallazgo de Lutzomyia tihuiliensis (Diptera: Psychodidae) en el valle de Aburrá, Colombia.

INTRODUCTION: Three of the seven species that comprise the pia series of the Lutzomyia verrucarum group have been recorded in Colombia, including L. pia, L. limafalcaoae and L. emberai. OBJECTIVE: The aim of this paper is to report the occurrence of an anthropophilic morphospecies of the pia series in the country. MATERIALS AND METHODS: Sand flies were collected with a mouth aspirator on protected human bait in a secondary forest in the municipality of Envigado, department of Antioquia. The entomological survey was performed from 18:00 to 22:00 hours in June and December, 2004. RESULTS: Captured specimens were identified as L. tihuiliensis, which can be distinguished easily from other species of the pia series by its basally pigmented pleura, the length of the labro-epipharynx, (3)350 microm, and the length of the second palpomere, (3)170 microm. In addition to the previous characters, the sand flies collected exhibit a longer common sperm duct than the individual ducts with the ratio of the lengths of the common/individual ducts (3)2. CONCLUSION: The finding of L. tihuiliensis raises to 21 the number of species of the Lutzomyia verrucarum group recorded to date in Colombia, including two endemic species of the pia series. From a biogeographical point of view, the presence of four species of the pia series in Colombia is of great interest for the study of the origin of the taxon.

[Leishmania (leishmania) mexicana in the village of San Matias, municipality of Gomez Plata, North West of Antioquia, Colombia]. / Leishmania (Leishmania) mexicana en el corregimiento de San Matías, municipio de Gõmez Plata, Antioquia, Colombia.

INTRODUCTION: Leishmaniasis is found in natural foci of infection where both sand fly vectors and mammalian reservoirs of Leishmania are present. OBJECTIVE: To report for the first time the presence of Leishmania (Leishmania) mexicana Biagi, 1953, in the village of San Matías, municipality of Gomez Plata, Department of Antioquia. MATERIALS AND METHODS: The parasite was isolated from a patient with localized cutaneous leishmaniasis and was identified by the immunofluorescence technique using specific monoclonal antibodies against L. mexicana species and isoenzyme electrophoresis. RESULTS AND CONCLUSION: The isoenzymatic profiles of the reference strains L. (L.) mexicana (MNCY/BZ/62/M379) and L. (L.) mexicana (MHOM/BE/82/BEL21) were similar to that of the isolate recovered from the patient, allowing us to classify it as L. (L.) mexicana.

Porous bodies of hydroxyapatite produced by a combination of the gel-casting and polymer sponge methods.

A combination of gel-casting and polymeric foam infiltration methods is used in this study to prepare porous bodies of hydroxyapatite (HA), to provide a better control over the microstructures of samples. These scaffolds were prepared by impregnating a body of porous polyurethane foam with slurry containing HA powder, and using a percentage of solids between 40% and 50% w/v, and three different types of monomers to provide a better performance. X-Ray Diffraction (XRD), and Fourier Transformed Infrared (FTIR) and Scanning Electron Microscopy (SEM) were employed to evaluate both the powder hydroxyapatite and the scaffolds obtained. In addition, porosity and interconnectivity measurements were taken in accordance with the international norm. Bioactivity was checked using immersion tests in Simulated Body Fluids (SBF). After the sintering process of the porous bodies, the XRD results showed peaks characteristic of a pure and crystalline HA (JCPDS 9-432) as a single phase. SEM images indicate open and interconnected pores inside the material, with pore sizes between 50 and 600 µm. Also, SEM images demonstrate the relatively good bioactivity of the HA scaffolds after immersion in SBF. All results for the porous HA bodies suggest that these materials have great potential for use in tissue engineering.

Antidiabéticos en Insuficiencia Cardíaca

Resumen: Introducción: La insuficiencia cardíaca se reconoce como una enfermedad sistémica, por lo que se debe hacer un abordaje holístico y no enfocado exclusivamente a la falla cardíaca. La insuficiencia cardíaca se asocia con múltiples comorbilidades, siendo la diabetes mellitus una de las más frecuentes, estas comparten procesos fisiopatológicos con un comportamiento bidireccional, donde la mala evolución de una puede afectar a la otra. Por tanto, al considerar el tratamiento farmacológico de una de ellas, hay que tener en cuenta que el mismo no sea deletéreo para la otra. En los últimos años se requiere que cualquier tratamiento antidiabético tenga un efecto beneficioso o neutro a nivel cardiovascular. Este hecho es el constante desafío clínico al que el médico se enfrenta en estos pacientes. El objetivo de esta revisión es hacer una puesta a punto de la mejor evidencia disponible en el uso de los antidiabéticos en pacientes con insuficiencia cardíaca. Métodos: Se realizó una revisión sistemática de los principales estudios observacionales, ensayos clínicos, revisiones y metaanálisis publicados del uso de antidiabéticos y efecto cardiovascular, hasta diciembre del 2020, utilizando la base de datos de Pubmed y ScienceDirect. Conclusiones: De la revisión realizada se puede concluir que el fármaco de primera línea en pacientes con diabetes e insuficiencia cardíaca es la metformina, compartiendo este primer eslabón con los iSGLT2 (Empagliflozina, Canagliflozina y Dapagliflozina), según la última evidencia disponible, los que han demostrado ser eficaces en la reducción de las hospitalizaciones por insuficiencia cardíaca entre los pacientes con o sin diabetes y muerte cardiovascular, recientes estudios extienden además beneficio a los pacientes que también asocian enfermedad renal crónica.

Abstract: Introduction: Heart failure is recognized as a systemic disease, thus a holistic approach that is not exclusively focused on heart failure should be used. Heart failure is associated with multiple comorbidities, being diabetes mellitus one of the most frequent. These share pathophysiological processes with a bidirectional behavior, where the poor evolution of one can affect the other. Therefore, when considering the pharmacological treatment of one of them, it must be taken into account that it should not be detrimental to the other. In recent years, any antidiabetic treatment is required to have either a beneficial or a neutral effect at the cardiovascular level. This fact is the constant clinical challenge that physicians have to deal with when treating these patients. The objective of this review is to refine the best available evidence on the use of antidiabetic agents in patients with heart failure. Methods: A systematic review of the main observational studies, clinical trials, reviews and meta-analysis published on the use of antidiabetics agents and cardiovascular effect was carried out until December 2020, using Pubmed and ScienceDirect databases. Conclusions: From the review carried out, it can be concluded that the first-line drug for patients with diabetes and heart failure is metformin. This first link is shared with iSGLT2 (Empagliflozin, Canagliflozin and Dapagliflozin), according to the latest available evidence, which have been proven to be effective in reducing hospitalizations for heart failure among patients with or without diabetes and cardiovascular death. Recent studies also extend benefits to patients who are also associated with chronic kidney disease.

Resumo: Introdução: A insuficiência cardíaca é reconhecida como uma doença sistêmica, portanto, uma abordagem holística deve ser feita e não focada exclusivamente na insuficiência cardíaca. A insuficiência cardíaca está associada a múltiplas comorbidades, o diabetes mellitus uma das mais frequentes, pois compartilham processos fisiopatológicos com comportamento bidirecional, onde a má evolução de um pode afetar o outro. Portanto, ao se considerar o tratamento farmacológico de um deles, deve-se levar em consideração que não é prejudicial ao outro. Nos últimos anos, qualquer tratamento antidiabético é necessário para ter um efeito benéfico ou neutro no nível cardiovascular. Esse fato é o constante desafio clínico que o médico enfrenta nesses pacientes. O objetivo desta revisão é fazer uma pesquisa das melhores evidências disponíveis sobre o uso de anti-diabeticos em pacientes com insuficiência cardíaca. Métodos: Foi realizada uma revisão sistemática dos principais estudos observacionais, ensaios clínicos, revisões e metanálises sobre o uso de antidiabéticos e efeito cardiovascular, até dezembro de 2020, nas bases de dados Pubmed e ScienceDirect. Conclusões: A partir da revisão realizada, pode-se concluir que o medicamento de primeira linha em pacientes com diabetes e insuficiência cardíaca é a metformina, compartilhando esta primeira linha com o iSGLT2 (Empagliflozin, Canagliflozin e Dapagliflozin), de acordo com as últimas evidências disponíveis, para aqueles que se mostraram eficazes na redução de hospitalizações por insuficiência cardíaca entre pacientes com ou sem diabetes e morte cardiovascular, estudos recentes também estendem o benefício a pacientes que também associam doença renal crônica.

Factores maternos y ganancia de peso en un grupo de gestantes con recién nacidos macrosómicos / Maternal Factors and Weight Gain in a Group of Pregnant Women with Macrosomic Newborns

Resumen Antecedentes: la excesiva ganancia de peso contribuye al riesgo de diabetes gestacional y sobrecrecimiento fetal. Objetivo: explorar el efecto de algunos factores sociodemográficos, gestacionales y antropométricos sobre la ganancia de peso durante la gestación en un grupo de mujeres con recién nacidos macrosómicos, atendidas en una institución de segundo nivel del departamento de Antioquia, Colombia, entre 2010 y 2017. Materiales y métodos: se realizó un estudio transversal retrospectivo con historias clínicas prenatales de 61 mujeres que tuvieron recién nacidos macrosómicos. La variable de interés fue la ganancia de peso. Para la asociación de los aspectos sociodemográficos y gestacionales con la ganancia de peso, se aplicó la prueba t de Student y la magnitud del efecto con la medida g de Hedges. Se aplicó un modelo de regresión lineal múltiple ajustado para el análisis multivariado. Resultados: se hallaron diferencias estadísticamente significativas según edad materna, IMC pregestacional, estatura materna e interconsulta a nutrición. El tamaño del efecto sobre el aumento de peso en el embarazo para cada una de estas variables fue significativo. El IMC pregestacional (p<0,001; IC95 % -7,28; -2,67) y la estatura materna (p<0,05 IC95 % 0,88; 5,87) explican el 27 % de la variabilidad de la ganancia de peso. Conclusión: factores como edad materna menor a 35 años, IMC pregestacional, estatura materna y ausencia de atención nutricional pueden repercutir en ganancias de peso por encima de lo recomendado.

Abstract Background: Excessive weight gain contributes to the risk of gestational diabetes and fetal overgrowth. Objective: to explore the effect of some sociodemographic, gestational and anthropometric factors on weight gain during pregnancy, in a group of women with macrosomic newborns, treated at a second-level institution in the department of Antioquia, between 2010 and 2017. Materials and Methods: A descriptive cross-sectional study was conducted with prenatal medical records of 61 women with macrosomic newborns. The variable of interest was weight gain. For the relationship of the sociodemographic and gestational aspects with the weight gain, the t-Student test was applied and the magnitude of the effect with the Hedges g measure. A multiple linear regression model adjusted was applied for multivariate analysis. Results: Statistically significant differences were found in maternal age, pregestational body mass index, maternal height, and nutrition consultation. The effect size on weight gain in pregnancy for each of these variables was significant. Pregestational body mass index (p<0.001, 95% CI -7.28; -2.67) and maternal height (P<0.05 95% CI 0.88; 5.87) explain 27% of the variability of weight gain. Conclusion: factors such as maternal age less than 35 years, pregestational body mass index, maternal height and lack of nutritional care, can have an impact on weight gains above the recommendations.

Relationship between maternal hemoglobin and birthweight in Antioquia, Colombia / Relación de la hemoglobina materna y el peso al nacer en Antioquia-Colombia

Abstract Objectives: to determine the relationship between maternal hemoglobin (HbM) per gestational trimester and birthweight (BW). Methods: this was an analytical, cross-sectional observational study that included the prenatal records of494 pregnant women who delivered live newborns in the Department of Antioquia. The maternal health data collected included HbM and BW, and gynecological and obstetric, anthropometric, and maternal health-related data. The Mann-Whitney U test was applied, supplemented by effect size (ES) to compare the study groups. Results: HbMin the third trimester was significantly associated with BW (p=0.029).It showed a significant effect size on BW as follows: first trimester: ES=0.44 (CI95%= 0.183-0.697); second trimester: ES=0.49 (CI95%= 0.187-0.79); and third trimester: ES=0.43 (CI95% = 0.202-0.658). Maternal anemia was 4.2%>, 11.2%, and 21.4%> in the first, second, and third trimester, respectively. Conclusions: as it is an inexpensive indicator and easy to determine, the timely monitoring and assessment of HbM is required owing to its importance in maternal and neonatal health, quality of life, and human capital development.

Resumen Objetivos: determinar la relación entre hemoglobina materna (HbM) por trimestre de gestación y peso al nacer (PN). Métodos: estudio observacional analítico, transversal, en 494 historias prenatales de gestantes con recién nacido vivo del departamento de Antioquia. Se tomaron datos de HbMy PN, ginecobstétricos, antropométricos y de salud materna. Para comparar los grupos de estudio, se aplicó la prueba U-Mann Whitney, complementada con el tamaño de efecto (ES). Resultados: la HbM de tercer trimestre se asoció significativamente con el PN (p=0,029); la HbM mostró un tamaño de efecto importante sobre el PN, así: primer trimestre: ES=0,44 (IC95%= 0,183 a 0,697); segundo trimestre: ES=0,49 (IC95%= 0,187 a 0,79); tercer trimestre: ES=0,43 (IC95%o= 0,202 a 0,658). La anemia materna fue 4,2°%, 11,2%o y 21,4°% en el primero, segundo y tercer trimestre, respectivamente. Conclusiones: Se necesita seguimiento y evaluación oportuna de la HbM, indicador de bajo costo y fácil determinación, por su importancia en la salud materna y neonatal, en la calidad de vida y desarrollo del capital humano.

Evaluación de una intervención educativa para mejorar el consumo de frutas, vegetales y la actividad física de docentes en tres centros educativos públicos en Costa Rica / Evaluation of an educational intervention to improve teachers' fruit and vegetable intake and physical activity practice in three public schools in Costa Rica

Resumen: Introducción: El modelo Póngale Vida ® para la prevención de la obesidad infantil reconoce a docentes de las escuelas como actores clave para esta labor, pero para ello se requiere fortalecer los conocimientos y las prácticas para la promoción de la alimentación saludable y la actividad física de los escolares. Objetivo: Evaluar los resultados de la intervención educativa para mejorar la autoeficacia en consumo de frutas y vegetales y en actividad física en docentes de tres centros educativos públicos urbanos de Costa Rica. Metodología: Se aplicó y evaluó la propuesta educativa de Jara y Rivera (2011) con 70 docentes. Hubo evaluaciones antes y después de la aplicación de la intervención. Las variables evaluadas fueron demográficas, de estilo de vida y medición de la autoeficacia para actividad física y consumo de frutas y vegetales, valoraciones bioquímicas y antropométricas. A través de grupos focales, se identificó tanto facilitadores como barreras a nivel personal, familiar y laboral. Resultados: Posterior a la intervención, casi 25 % de docentes incrementó la práctica de actividad física y la autoeficacia para las prácticas de actividad física y consumo de frutas y vegetales. Las barreras identificadas fueron la doble carga de trabajo asociada al rol de género femenino, creencias limitantes y la falta de urgencia para la prevención de enfermedades. Conclusiones: La propuesta educativa favoreció el aumento de la autoeficacia en el consumo de frutas y vegetales, así como la práctica de actividad física de la población docente.

Abstract: Introduction: The Póngale Vida ® model for the prevention of childhood obesity recognizes schoolteachers as key actors in this work, but this requires strengthening their knowledge and practices to promote healthy eating and physical activity for school children. Objective: To evaluate an educational intervention to increase teacher's self-efficacy for fruit and vegetable consumption and physical activity, within three public schools in Costa Rica. Methods: Jara and Rivera's educational proposal for intervention (2011) was implemented and evaluated with 70 teachers. There were evaluations before and after the intervention, it had demographic characteristics, lifestyle variables, self-efficacy measurements for physical activity and fruit and vegetables consumption; also, biochemical and anthropometric measures. Focus groups were used to identify facilitators and barriers at personal, family and work levels. Results: After the intervention, almost 25% of teachers increased their physical activity practices, as well as self efficacy for physical activity practice and fruits and vegetables consumption. The main barriers were a double work burden linked with feminine gender roles, limiting beliefs, and, lack of urgency in preventing diseases. Conclusions: The educational intervention contributed in increasing self-efficacy regarding eating fruit and vegetables and the practice of physical activity of participating teachers.

Fundamentación-validez del cuestionario de FLORIDA para la aceptación del paciente (FPAS) en español / Validity-rationale of the FLORIDA for patient acceptance survey (FPAS) in spanish

Señor Editor: Frente a los procedimientos alternativos sugeridos por Carranza Esteban, López-Gonzales y Caycho-Rodríguez, y en relación con los resultados de la validación del instrumento FPAS versión en Español pocos fiables sugeridos por Merino-Soto y Angulo-Ramos, es importante precisar que este estudio de validación que fue realizado en el año 2016 utilizando la mejor evidencia científica disponible para poder obtener un instrumento válido y fiable en el idioma español de la escala que mide la aceptación de las personas al dispositivo de estimulación cardiaca, se sustenta en la aplicación de la teoría clásica del test1 que aún permanece vigente y es ampliamente utilizada en el área de la validación de los instrumentos de las ciencias de la salud, así como en otras áreas, como las ciencias humanas y sociales.

Malaria vector anopheles (Nyssorhynchus) nuneztovari comprises one genetic species in colombia based on homogeneity of nuclear ITS2 rDNA.

Previous studies indicated that two distinct chromosomal forms of Anopheles nuneztovari Gabaldón, cytotypes B and C, occurred on the west and east of the Latin American Andes Mountains, respectively. To determine the taxonomic status ofAnopheles (Nyssorhynchus) nuneztovari in Colombia, link-reared specimens were collected from four sites: in the departments of Chocó (La Pacurita) and Valle (Sitronella) in the west, and Norte de Santander (Guaramito andl Tibú) in the east. Nuclear ITS2 sequences were generated for 46 individuals. Only two specimens (4.4%) showed divergent haplotypes, varying from the consensus by a single-base polymorphism (0.18%). These results suggest that populations of An. nuneztovari corresponding to cytotypes (B and C) are conspecific.