Elucidating the exchange interactions in a {GdIIICuII4} propellor.

The multinucleating ligand 2,2'-(propane-1,3-diyldiimino)bis[2-(hydroxymethyl)-propane-1,3-diol] (bis-tris propane, H6L) is used in the design of a new family of 3d-4f complexes that display an unusual {LnCu4} four-blade propeller topology. We report the synthesis, structure and magnetic characterisation of [LnCu4(H4L)4](Cl)2(ClO4)·6CH3OH, where Ln = Gd (1), Tb (2), Dy (3), La (4). Previously we have used CH3COO- and NO3- as co-ligands with bis-tris propane, but here the use of Cl- and ClO4- leads to coordination of four {Cu(H4L)} units around the central Ln ion. A magneto-structural analysis reveals that the geometrical arrangement of the Cu(II) centres defined by the H4L2- ligands controls the magnetic communication between the different metal centres. DFT calculations performed on the isotropic (Gd) and diamagnetic (La) systems 1 and 4 help to unravel the intriguing exchange interactions.

[Critical patients COVID-19 has changed the management and outcomes in the ICU after 1 year of the pandemic? A multicenter, prospective, observational study]. / Pacientes críticos COVID-19. ¿Han variado el manejo y los resultados en la UCI tras un año de pandemia? Estudio multicéntrico, prospectivo, observacional.

Objective: To compare the clinical characteristics, treatments, and evolution of critical patients with COVID-19 pneumonia treated in intensive care units (ICU) after one year of pandemic. Methodology: Multicenter, prospective study, which included critical COVID-19 patients in 9 ICUs in northwestern Spain. The clinical characteristics, treatments, and evolution of patients admitted to the ICU during the months of March-April 2020 (period 1) were compared with patients admitted in January-February 2021 (period 2). Results: 337 patients were included (98 in period 1 and 239 in period 2). In period 2, fewer patients required invasive mechanical ventilation (IMV) (65% vs. 84%, P < .001), using high-flow nasal cannulas (CNAF) more frequently (70% vs. 7%, P < .001), ventilation non-invasive mechanical (NIMV) (40% vs. 14%, P < .001), corticosteroids (100% vs. 96%, P = .007) and prone position in both awake (42% vs. 28%, P = .012), and intubated patients (67% vs. 54%, P = .034). The days of IMV, ICU stay and hospital stay were lower in period 2. Mortality was similar in the two periods studied (16% vs. 17%). Conclusions: After one year of pandemic, we observed that in patients admitted to the ICU, CNAF, NIMV, use of the prone position, and corticosteroids have been used more frequently, reducing the number of patients in IMV, and the length of stay in the ICU and hospital stay. Mortality was similar in the two study periods.

Critical patients COVID-19 has changed the management and outcomes in the ICU after 1 year of the pandemic? A multicenter, prospective, observational study.

OBJECTIVE: To compare the clinical characteristics, treatments, and evolution of critical patients with COVID-19 pneumonia treated in Intensive Care Units (ICU) after one year of pandemic. METHODOLOGY: Multicenter, prospective study, which included critical COVID-19 patients in 9 ICUs in northwestern Spain. The clinical characteristics, treatments, and evolution of patients admitted to the ICU during the months of March-April 2020 (period 1) were compared with patients admitted in January-February 2021 (period 2). RESULTS: 337 patients were included (98 in period 1 and 239 in period 2). In period 2, fewer patients required invasive mechanical ventilation (IMV) (65% vs 84%, p < 0.001), using high-flow nasal cannulas (CNAF) more frequently (70% vs 7%, p < 0.001), ventilation non-invasive mechanical (NIMV) (40% vs 14%, p < 0.001), corticosteroids (100% vs 96%, p = 0.007) and prone position in both awake (42% vs 28%, p = 0.012), and intubated patients (67% vs 54%, p = 0.034). The days of IMV, ICU stay and hospital stay were lower in period 2. Mortality was similar in the two periods studied (16% vs 17%). CONCLUSIONS: After 1 year of pandemic, we observed that in patients admitted to the ICU, CNAF, NIMV, use of the prone position, and corticosteroids have been used more frequently, reducing the number of patients in IMV, and the length of stay in the ICU and hospital stay. Mortality was similar in the two study periods.

Perfil lipídico por trimestres del embarazo en gestantes sanas / Lipid profile by trimesters of pregnancy in healthy pregnant women / Perfil lipídico por trimestres de gestação em gestantes saudáveis

RESUMEN Con el objetivo de describir el perfil lipídico por trimestres de gestación en gestantes sanas, se realizó un estudio descriptivo, de corte transversal, el cual se condujo con 40 embarazadas entre 20 y 35 años, de un universo de 110, pertenecientes al policlínico "Jimmy Hirzel" de Bayamo, Granma, entre enero del 2017 y marzo del 2019. Se determinaron las concentraciones de colesterol total, triglicéridos, HDL-colesterol, LDL-colesterol y VLDL-colesterol. Se utilizó el análisis de varianza de un factor, y la prueba de Tukey de comparación múltiple de parejas de medias. El colesterol, los triglicéridos, el LDL-colesterol y el VLDL-colesterol variaron de forma significativa con el trimestre de gestación. El colesterol total se incrementó en el segundo y tercer trimestre en comparación con el primero, mientras que los triglicéridos, el LDL-colesterol y el VLDL-colesterol se incrementaron en el tercer trimestre en comparación con el primero. El HDL-colesterol no tuvo una variación significativa durante el embarazo. Se concluye que los valores del colesterol total, los triglicéridos, el LDL-colesterol y el VLDL-colesterol varían en relación con el trimestre de la gestación, aumentan de forma significativa en el tercer trimestre en comparación con el primer trimestre del embarazo, en tanto el HDL-colesterol no varía significativamente durante el embarazo.

ABSTRACT In order to describe the lipid profile by trimesters of pregnancy in healthy pregnant women, a descriptive, cross-sectional study was conducted with 40 pregnant women between 20 and 35 years of age, from a universe of 110, belonging to the "Jimmy Hirzel" Hospital in Bayamo, Granma, between January 2017 and March 2019. The concentrations of total cholesterol, triglycerides, HDL-cholesterol, LDL-cholesterol and VLDL-cholesterol were determined. One-factor analysis of variance was used, and the Tukey's multiple comparison test of pairs of means Cholesterol, triglycerides, LDL-cholesterol, and VLDL-cholesterol varied significantly with gestational trimester total cholesterol increased in the second and third trimesters compared with the first, while triglycerides, LDL-cholesterol and VLDL-cholesterol increased in the third trimester compared to the first. HDL-cholesterol did not have a significant variation time during pregnancy. It is concluded that the values ​​of total cholesterol, triglycerides, LDL-cholesterol and VLDL-cholesterol vary in relation to the trimester of pregnancy, they increase significantly in the third trimester compared to the first trimester of pregnancy, while HDL-cholesterol does not vary significantly during pregnancy.

RESUMO Com o objetivo de descrever o perfil lipídico por trimestres de gestação em gestantes saudáveis, foi realizado um estudo descritivo, transversal, com 40 gestantes entre 20 e 35 anos, de um universo de 110, pertencentes ao grupo "Jimmy Hirzel" Hospital em Bayamo, Granma, entre janeiro de 2017 e março de 2019. Foram determinadas as concentrações de colesterol total, triglicerídeos, HDL-colesterol, LDL-colesterol e VLDL-colesterol. Foi utilizada a análise de variância de um fator e o teste de comparação múltipla de Tukey de pares de médias Colesterol, triglicerídeos, LDL-colesterol e VLDL-colesterol variou significativamente com o trimestre gestacional O colesterol total aumentou no segundo e terceiro trimestres em comparação com o primeiro, enquanto os triglicerídeos, LDL-colesterol e VLDL-colesterol aumentaram no terceiro trimestre comparado ao primeiro. O HDL-colesterol não teve variação significativa durante a gravidez. Conclui-se que os valores de colesterol total, triglicerídeos, LDL-colesterol e VLDL-colesterol variam em relação ao trimestre de gestação, aumentam significativamente no terceiro trimestre em relação ao primeiro trimestre de gestação, enquanto o HDL-colesterol não não variam significativamente durante a gravidez.

Can Music Therapy Improve the Quality of Life of Institutionalized Elderly People?

INTRODUCTION: The current population has new characteristics that require changes to be made in the public health system. In the case of the elderly, the concrete aspects of their health must be known to improve the system, in search of a better quality of life and as much independence as possible. METHOD: The aim of this study was to verify the efficiency of a music therapy program with institutionalized elderly participants to avoid depressive symptoms and improve social interaction and creativity. This is a group case study that uses a pretest-post-test descriptive design. The program was divided into sixteen sessions, two sessions each week. As inclusion and exclusion criteria, physical dependency and cognitive state were used. RESULTS: The results present an improvement in the physical dimensions of quality of life and an increase in creativity and social interaction. It is recommended that the sessions in the program, aiming to achieve a greater efficiency, are extended because the elderly have very ingrained habits and routines that are very hard to eliminate. DISCUSSION AND CONCLUSIONS: Music therapy, a non-pharmacological and worthwhile treatment, is a therapeutic option with proven benefits. Music therapy has the potential to improve health and quality of life in the elderly and also foster the amelioration of various chronic illnesses, such as depression.

Perfil lipídico por trimestres del embarazo en gestantes sanas / Lipid profile by trimesters of pregnancy in healthy pregnant women

Con el objetivo de describir el perfil lipídico por trimestres de gestación en gestantes sanas, se realizó un estudio descriptivo, de corte transversal, el cual se condujo con 40 embarazadas entre 20 y 35 años, de un universo de 110, pertenecientes al policlínico Jimmy Hirzel de Bayamo, Granma, entre enero del 2017 y marzo del 2019. Se determinaron las concentraciones de colesterol total, triglicéridos, HDL-colesterol, LDL-colesterol y VLDL-colesterol. Se utilizó el análisis de varianza de un factor, y la prueba de Tukey de comparación múltiple de parejas de medias. El colesterol, los triglicéridos, el LDL-colesterol y el VLDL-colesterol variaron de forma significativa con el trimestre de gestación. El colesterol total se incrementó en el segundo y tercer trimestre en comparación con el primero, mientras que los triglicéridos, el LDL-colesterol y el VLDL-colesterol se incrementaron en el tercer trimestre en comparación con el primero. El HDL-colesterol no tuvo una variación significativa durante el embarazo. Se concluye que los valores del colesterol total, los triglicéridos, el LDL-colesterol y el VLDL-colesterol varían en relación con el trimestre de la gestación, aumentan de forma significativa en el tercer trimestre en comparación con el primer trimestre del embarazo, en tanto el HDL-colesterol no varía significativamente durante el embarazo(AU)

In order to describe the lipid profile by trimesters of pregnancy in healthy pregnant women, a descriptive, cross-sectional study was conducted with 40 pregnant women between 20 and 35 years of age, from a universe of 110, belonging to the Jimmy Hirzel Hospital in Bayamo, Granma, between January 2017 and March 2019. The concentrations of total cholesterol, triglycerides, HDL-cholesterol, LDL-cholesterol and VLDL-cholesterol were determined. One-factor analysis of variance was used, and the Tukey's multiple comparison test of pairs of means Cholesterol, triglycerides, LDL-cholesterol, and VLDL-cholesterol varied significantly with gestational trimester total cholesterol increased in the second and third trimesters compared with the first, while triglycerides, LDL-cholesterol and VLDL-cholesterol increased in the third trimester compared to the first. HDL-cholesterol did not have a significant variation time during pregnancy. It is concluded that the values of total cholesterol, triglycerides, LDL-cholesterol and VLDL-cholesterol vary in relation to the trimester of pregnancy, they increase significantly in the third trimester compared to the first trimester of pregnancy, while HDL-cholesterol does not vary significantly during pregnancy(AU)

Antígenos del sistema ABO y manifestaciones clínicas de la Covid-19 en un área de salud del municipio Bayamo / Antigens of the ABO system and clinical manifestations of Covid-19 in a health area of the Bayamo municipality

Introducción: Se han descrito una plétora de síntomas/signos que indican claramente que la COVID-19 es una enfermedad compleja, y un número creciente de reportes han sugerido que los grupos sanguíneos ABO están relacionados con el riesgo a desarrollar la enfermedad. Objetivo: identificar si existe relación entre los fenotipos sanguíneos del sistema ABO y las manifestaciones clínicas de la Covid-19 en un área de salud del municipio Bayamo. Métodos: se realizó un estudio descriptivo retrospectivo, que incluyó a 123 pacientes confirmados de COVID-19 con alta epidemiológica. Se determinó el grupo sanguíneo según el sistema ABO. Los sujetos fueron clasificados según el número de síntomas/signos, el predominio de síntomas/signos respiratorios o no. Se analizó la asociación entre los grupos sanguíneos del sistema ABO, los portadores de los diferentes antígenos en comparación con las de aquellos sin el antígeno y los grupos por número de síntomas y signos, y según predominio o no de síntomas/signos respiratorios. Resultados: se encontró una asociación significativa entre el grupo sanguíneo de los pacientes y los grupos según el número de síntomas/signos presentados, así como, entre los portadores de antígenos B y no B y los grupos según el número de síntomas/signos presentados y el predominio de los síntomas respiratorios o no, en todos los casos con una mayor frecuencia de pacientes con el fenotipo A. Conclusiones: se concluye que en este estudio el grupo sanguíneo de los pacientes positivos a la Covid-19 se relacionó con el número de síntomas/signos presentados, con predominio de la frecuencia de portadores del antígeno A sobre los demás(AU)

Introduction: A plethora of symptoms/signs have been described that clearly indicate that COVID-19 is a complex disease, and a growing number of reports have suggested that ABO blood groups are related to the risk of developing the disease. Objective: to identify if there is a relationship between the blood phenotypes of the ABO system and the clinical manifestations of Covid-19 in a health area in the Bayamo municipality. Methods: a retrospective descriptive study was carried out, which included 123 confirmed COVID-19 patients with epidemiological discharge. Blood group was determined according to the ABO system. The subjects were classified according to the number of symptoms/signs, the predominance ofrespiratory symptoms/signs or not. The association between the blood groups of the ABO system, the carriers of the different antigens in comparison with those of those without the antigen and the groups by number of symptoms and signs, and according to predominance or not of respiratory symptoms/signs was analyzed. Results: a significant association was found between the blood group of the patients and the groups according to the number of symptoms/signs presented, as well as between carriers of B and non-B antigens and the groups according to the number of symptoms/signs presented and the predominance of respiratory symptoms or not, in all cases with a higher frequency of patients with phenotype A. Conclusions: it is concluded that in this study the blood group of patients positive for Covid-19 was related to the number of symptoms/signs presented, with a predominance of the frequency of carriers of antigen A over the others(EU)

Physical and Cognitive Functioning of Institutionalized Elderly People in Rural Areas. Preventive Actions Using Physical Activity and Music Therapy.

BACKGROUND: Comprehensive geriatric evaluation should include a functional and cognitive assessment to guide the intervention of interdisciplinary teams. The aim of this study was to analyze the physical capacities of institutionalized elderly people and to describe the preventive actions of physical activity and music therapy as non-invasive preventive pharmacological treatments given their importance for the cognitive and functional performance of elderly people. An observational and descriptive cross-sectional study was carried out. The participants in the study were 109 elderly people institutionalized in three residential centers with a mean age of 83.41 years (SD = 8.72). FINDINGS: Most of the residents had very impaired physical faculties. However, cognitive impairment was not very high. Most residents (55.04%) had some form of dementia and/or high blood pressure (54.12%) followed by pathologies such as diabetes (27.52%), heart failure (17.43%), Parkinson's disease (9.17%) and chronic obstructive pulmonary disease (8.25%). There were no differences in cognitive or physical capacity among the residents according to sex, age, or education and only those who had worked in the service sector had less cognitive capacity than those who had worked in the agricultural sector or as housewives. APPLICATIONS: Facilitate the creation and development of programs based on physical activity and music therapy in residential centers that can prevent and improve pathologies on the elderly.

Spin-Crossover Properties of an Iron(II) Coordination Nanohoop.

Addition of the bipyridyl-embedded cycloparaphenylene nanohoop bipy[9]CPP to [Fe{H2 B(pyz)2 }] (pyz=pyrazolyl) produces the distorted octahedral complex [Fe(bipy[9]CPP){H2 B(pyz)2 }2 ] (1). The molecular structure of 1 shows that the nanohoop ligand contains a non-planar bipy unit. Magnetic susceptibility measurements indicate spin-crossover (SCO) behaviour with a T1/2 of 130 K, lower than that of 160 K observed with the related compound [Fe(bipy){H2 B(pyz)2 }2 ] (2), which contains a conventional bipy ligand. A computational study of 1 and 2 reveals that the curvature of the nanohoop leads to the different SCO properties, suggesting that the SCO behaviour of iron(II) can be tuned by varying the size and diameter of the nanohoop.

Eficacia de los programas de musicoterapia: un metanálisis cualitativo / Eficácia dos programas de musicoterapia: uma meta-análise qualitativa / Efficacy of music therapy programs: a qualitative meta-analysis

Resumen El aumento de enfermedades transmisibles justifica la necesidad de verificar la eficacia no farmacológica de los tratamientos alternativos. La música promueve las interacciones sociales y el trabajo en grupo, ayuda en varios aspectos del aprendizaje humano, la emoción y la memoria, y puede convertirse en una herramienta terapéutica complementaria. El objetivo de este estudio fue analizar la evidencia de la eficacia de la musicoterapia como tratamiento no farmacológico mediante un diseño descriptivo retrospectivo utilizando como parámetros de búsqueda: "musicoterapia" o "programas musicales" y "salud" en las bases de datos Scopus y Web of Science. Entre los principales resultados, destacamos que los programas de intervención que utilizan la música como tratamiento coadyuvante no farmacológico en enfermedades no transmisibles ofrecen resultados positivos y significativos sobre la mejora de las patologías en las que interviene. A partir de estos resultados, sería importante ampliar la formación de los profesionales de la salud en la aplicación de técnicas basadas en el arte y específicamente en la musicoterapia.

Resumo O aumento das doenças transmissíveis justifica a necessidade de verificar a eficácia não farmacológica de tratamentos alternativos. A música promove interações sociais e trabalho em grupo, auxilia em vários aspectos da aprendizagem humana, emoção e memória, e pode se tornar uma ferramenta terapêutica complementar. O objetivo deste estudo foi analisar a eficácia da musicoterapia como tratamento não farmacológico por meio de um desenho descritivo retrospectivo utilizando como parâmetros de busca: "musicoterapia" ou "programas de música" e "saúde" nas bases de dados Scopus e Web of Science. Dentre os principais resultados, destacamos que os programas de intervenção que utilizam a música como coadjuvante não farmacológico nas doenças não transmissíveis oferecem resultados positivos e significativos na melhora das patologias em que intervém. Com base nesses resultados, seria importante ampliar a formação dos profissionais de saúde na aplicação de técnicas baseadas na arte e especificamente na musicoterapia.

Abstract The increase in communicable diseases justifies the need to verify the non-pharmacological efficacy of alternative treatments. Music promotes social interactions and group work, helps in various aspects of human learning, emotion, and memory, and can become a complementary therapeutic tool. This study aimed to analyse the efficacy of music therapy as a non-pharmacological treatment through a retrospective descriptive design using as search parameters: "music therapy" or "music programs" and "health" in the Scopus and Web of Science databases. Among the main results, we highlight that the intervention programs that use music as an adjunctive non-pharmacological treatment in non-communicable diseases offer positive and significant results on the improvement of the pathologies in which it intervenes. Based on these results, it would be important to expand the training of health professionals in the application of techniques based on art and specifically in music therapy.

Eficacia de los programas de musicoterapia: un metanálisis cualitativo / Eficácia dos programas de musicoterapia: uma meta-análise qualitativa / Efficacy of music therapy programs: a qualitative meta-analysis

Resumen El aumento de enfermedades transmisibles justifica la necesidad de verificar la eficacia no farmacológica de los tratamientos alternativos. La música promueve las interacciones sociales y el trabajo en grupo, ayuda en varios aspectos del aprendizaje humano, la emoción y la memoria, y puede convertirse en una herramienta terapéutica complementaria. El objetivo de este estudio fue analizar la evidencia de la eficacia de la musicoterapia como tratamiento no farmacológico mediante un diseño descriptivo retrospectivo utilizando como parámetros de búsqueda: "musicoterapia" o "programas musicales" y "salud" en las bases de datos Scopus y Web of Science. Entre los principales resultados, destacamos que los programas de intervención que utilizan la música como tratamiento coadyuvante no farmacológico en enfermedades no transmisibles ofrecen resultados positivos y significativos sobre la mejora de las patologías en las que interviene. A partir de estos resultados, sería importante ampliar la formación de los profesionales de la salud en la aplicación de técnicas basadas en el arte y específicamente en la musicoterapia.

Resumo O aumento das doenças transmissíveis justifica a necessidade de verificar a eficácia não farmacológica de tratamentos alternativos. A música promove interações sociais e trabalho em grupo, auxilia em vários aspectos da aprendizagem humana, emoção e memória, e pode se tornar uma ferramenta terapêutica complementar. O objetivo deste estudo foi analisar a eficácia da musicoterapia como tratamento não farmacológico por meio de um desenho descritivo retrospectivo utilizando como parâmetros de busca: "musicoterapia" ou "programas de música" e "saúde" nas bases de dados Scopus e Web of Science. Dentre os principais resultados, destacamos que os programas de intervenção que utilizam a música como coadjuvante não farmacológico nas doenças não transmissíveis oferecem resultados positivos e significativos na melhora das patologias em que intervém. Com base nesses resultados, seria importante ampliar a formação dos profissionais de saúde na aplicação de técnicas baseadas na arte e especificamente na musicoterapia.

Abstract The increase in communicable diseases justifies the need to verify the non-pharmacological efficacy of alternative treatments. Music promotes social interactions and group work, helps in various aspects of human learning, emotion, and memory, and can become a complementary therapeutic tool. This study aimed to analyse the efficacy of music therapy as a non-pharmacological treatment through a retrospective descriptive design using as search parameters: "music therapy" or "music programs" and "health" in the Scopus and Web of Science databases. Among the main results, we highlight that the intervention programs that use music as an adjunctive non-pharmacological treatment in non-communicable diseases offer positive and significant results on the improvement of the pathologies in which it intervenes. Based on these results, it would be important to expand the training of health professionals in the application of techniques based on art and specifically in music therapy.

Parámetros clínicos, bioquímicos y metabólicos predictores de complicaciones micro y macrovasculares en diabéticos tipo 2 / Clinical, biochemical and metabolic parameters predictive of micro and macrovascular complications in type 2 diabetics

Introducción: la diabetes mellitus (DM) es una enfermedad endocrino-metabólica, vascular, crónica, producida por una interacción variable de factores genéticos y ambientales. Actualmente la DM2 es considerada por algunos autores como pandémica, sin la existencia de signos de reducción de las tasas de incidencia. Objetivo: identificar los parámetros clínicos, bioquímicos y metabólicos predictores de complicaciones micro y macrovasculares en personas con diabetes mellitus tipo 2. Método: se realizó un estudio analítico de tipo casos y controles con pacientes ingresados en el Centro de Atención al Diabético de Bayamo (CAD), Granma, desde el año 2010 al 2017, 81 con alguna complicación microvascular, 40 con alguna complicación macrovascular y 162 sin ninguna complicación. Resultados: en el análisis univariado se observó que el tiempo de evolución de la enfermedad y la HTA descontrolada fueron los factores de riesgo para el desarrollo de una complicación microvascular, mientras que a estas se le unieron el tabaquismo y la hipercolesterolemia como factores de riesgo para el desarrollo de complicaciones macrovasculares. Las variables que mostraron una relación independiente con el riesgo dedesarrollar alguna complicación microvascular fueron el tiempo de evolución de la enfermedad y la HTA descontrolada, mientras que para el desarrollo de complicaciones macrovasculares fueron el tiempo de evolución de la enfermedad y el tabaquismo. Conclusiones: el tiempo de evolución de la diabetes y la HTA descontrolada y el tiempo de evolución de la enfermedad y el tabaquismo se asocian de forma independiente con la aparición de complicaciones microvasculares y macrovasculates respectivamente(AU)

Introduction: diabetes mellitus (DM) is an endocrine-metabolic, vascular, chronic disease, produced by a variable interaction of genetic and environmental factors. Currently DM2 is considered by some authors as pandemic, without the existence of signs of reduction of incidence rates. Objective: to identify clinical, biochemical and metabolic parameters predictors of micro and macrovascular complications in people with type 2 diabetes mellitus. Method: an analytical case and control study was conducted with patients admitted to the Bayamo Diabetic Care Center (CAD), Granma, from 2010 to 2017, 81 with some microvascular complications, 40 with some macrovascular complications and 162 without any complications. Results: the univariate analysis found that disease progression time and uncontrolled HTA were the risk factors for the development of a microvascular complication, while these were joined by smoking and hypercholesterolemia as risk factors for the development of macrovascular complications. The variables that showed an independent relationship with the risk of developing some microvascular complications were the time of disease evolution and uncontrolled HTA, while for the development of macrovascular complications were the time of disease evolution and smoking. Conclusions: the time of evolution of diabetes and uncontrolled HTA and the time of disease and smoking evolution are independently associated with the emergence of microvascular and macrovasculate complications respectively(EU)

Parámetros clínicos, bioquímicos y metabólicos predictores de complicaciones micro y macrovasculares en diabéticos tipo 2 / Clinical, biochemical and metabolic parameters predictive of micro and macrovascular complications in type 2 diabetics / Parâmetros clínicos, bioquímicos e metabólicos preditivos de complicações micro e macrovasculares em diabéticos tipo 2

RESUMEN Introducción: la diabetes mellitus (DM) es una enfermedad endocrino - metabólica, vascular, crónica, producida por una interacción variable de factores genéticos y ambientales. Actualmente la DM2 es considerada por algunos autores como pandémica, sin la existencia de signos de reducción de las tasas de incidencia. Objetivo: identificar los parámetros clínicos, bioquímicos y metabólicos predictores de complicaciones micro y macrovasculares en personas con diabetes mellitus tipo 2. Método: se realizó un estudio analítico de tipo casos y controles con pacientes ingresados en el Centro de Atención al Diabético de Bayamo (CAD), Granma, desde el año 2010 al 2017, 81 con alguna complicación microvascular, 40 con alguna complicación macrovascular y 162 sin ninguna complicación. Resultados: en el análisis univariado se observó que el tiempo de evolución de la enfermedad y la HTA descontrolada fueron los factores de riesgo para el desarrollo de una complicación microvascular, mientras que a estas se le unieron el tabaquismo y le hipercolesterolemia como factores de riesgo para el desarrollo de complicaciones macrovasculares. Las variables que mostraron una relación independiente con el riesgo de desarrollar alguna complicación microvascular fueron el tiempo de evolución de la enfermedad y la HTA descontrolada, mientras que para el desarrollo de complicaciones macrovasculares fueron el tiempo de evolución de la enfermedad y el tabaquismo. Conclusiones: el tiempo de evolución de la diabetes y la HTA descontrolada y el tiempo de evolución de la enfermedad y el tabaquismo se asocian de forma independiente con la aparición de complicaciones microvasculares y macrovasculates respectivamente.

ABSTRACT Introduction: diabetes mellitus (DM) is an endocrine-metabolic, vascular, chronic disease, produced by a variable interaction of genetic and environmental factors. Currently DM2 is considered by some authors as pandemic, without the existence of signs of reduction of incidence rates. Objective: to identify clinical, biochemical and metabolic parameters predictors of micro and macrovascular complications in people with type 2 diabetes mellitus. Method: an analytical case and control study was conducted with patients admitted to the Bayamo Diabetic Care Center (CAD), Granma, from 2010 to 2017, 81 with some microvascular complications, 40 with some macrovascular complications and 162 without any complications. Results: the univariate analysis found that disease progression time and uncontrolled HTA were the risk factors for the development of a microvascular complication, while these were joined by smoking and hypercholesterolemia as risk factors for the development of macrovascular complications. The variables that showed an independent relationship with the risk of developing some microvascular complications were the time of disease evolution and uncontrolled HTA, while for the development of macrovascular complications were the time of disease evolution and smoking. Conclusions: the time of evolution of diabetes and uncontrolled HTA and the time of disease and smoking evolution are independently associated with the emergence of microvascular and macrovasculate complications respectively.

RESUMO Introdução: diabetes mellitus (DM) é uma doença endócrina-metabólica, vascular, crônica, produzida por uma interação variável de fatores genéticos e ambientais. Atualmente o DM2 é considerado por alguns autores como pandemia, sem a existência de sinais de redução das taxas de incidência. Objetivo: identificar preditores de parâmetros clínicos, bioquímicos e metabólicos de complicações micro e macrovasculares em pessoas com diabetes mellitus tipo 2. Método: estudo analítico de caso e controle foi realizado com pacientes internados no Centro de Atendimento Diabético Bayamo (CAD), Granma, de 2010 a 2017, 81 com algumas complicações microvasculares, 40 com algumas complicações macrovasculares e 162 sem complicações. Resultados: a análise univariada constatou que o tempo de progressão da doença e o HTA descontrolado foram os fatores de risco para o desenvolvimento de uma complicação microvascular, enquanto estes foram acompanhados pelo tabagismo e hipercolesterolemia como fatores de risco para o desenvolvimento de complicações macrovasculares. As variáveis que apresentaram relação independente com o risco de desenvolver algumas complicações microvasculares foram o tempo de evolução da doença e HTA descontrolada, enquanto para o desenvolvimento de complicações macrovasculares foi o tempo de evolução da doença e tabagismo. Conclusões: o tempo de evolução do diabetes e do HTA descontrolado e o tempo de evolução da doença e do tabagismo estão independentemente associados ao surgimento de complicações microvasculares e macrovasculadas, respectivamente.

Coupling of Nitric Oxide and Release of Nitrous Oxide from Rare-Earth-Dinitrosyliron Complexes.

Addition of Lewis acidic [Cp*2M]+ (M = Y, Gd) to the dinitrosyliron complexes (DNICs) [(NacNacAr)Fe(NO)2]- (Ar = mesityl, 2,6-diisopropylphenyl) results in formation of the isonitrosyl-bridged DNICs [(Cp*)2M(µ-ON)2Fe(NacNacAr)]. When Ar = 2,6-diisopropylphenyl, coupling of the NO ligands and release of N2O occur. Two factors contribute to this previously unobserved DNIC reactivity mode. First, the oxophilic rare-earth elements drive the formation of isonitrosyl bonds, forcing the DNIC nitrogen atoms into proximity. Second, the bulky substituents further squeeze the DNIC, which ultimately overcomes the barrier to NO coupling, demonstrating that N2O elimination can occur from a single iron center.

Parámetros clínicos, bioquímicos y metabólicos predictores de complicaciones vasculares en diabéticos tipo 2 / Clinical, biochemical and metabolic parameters predictors of vascular complications in type 2 diabetics

Introducción: la Diabetes Mellitus constituye una de las principales entidades sindrómicas en la práctica clínica habitual, con un incremento en la prevalencia, lo cual es preocupante, por la enfermedad en sí y por las complicaciones crónicas vasculares que se presentan en estos pacientes. Objetivo: identificar los parámetros clínicos, bioquímicos y metabólicos predictores de complicaciones vasculares en personas con diabetes mellitus tipo 2. Método: se realizó un estudio analítico de tipo casos y controles con pacientes ingresados en el Centro de Atención al Diabético de Bayamo (CAD), Granma, desde el año 2010 al 2017, 81 con alguna complicación vascular y 162 sin ninguna. Resultados: en el análisis univariado se observó que el tiempo de evolución de la enfermedad fue el único factor de riesgo para el desarrollo de una complicación vascular. Al asociar esta variable con otras hipotéticamente influyentes, se encontró que factores tales como, la edad como factor de riesgo según el sexo, el tabaquismo, el alcoholismo, el mal control metabólico y la presencia de síndrome metabólico, la glucemia en ayunas alterada, la hipertrigliceridemia, el hipercolesterolemia, la obesidad general, abdominal y la HTA descontrolada aparecen como factores de riesgo estadísticamente significativos. Las variables que mostraron una relación independiente con el riesgo de desarrollar alguna complicación vascular fueron el tiempo de evolución de la enfermedad y la presencia de síndrome metabólico. Conclusiones: el tiempo de evolución de la diabetes y el síndrome metabólico se asocian de forma independiente con la aparición de complicaciones vasculares en las personas con diabetes mellitus tipo 2(AU)

Introduction: Diabetes Mellitus is one of the main syndromic entities in normal clinical practice, with an increase in prevalence, which is worrying, because of the disease itself and the chronic vascular complications that occur in these patients. Objective: to identify the clinical, biochemical and metabolic parameters that predict vascular complications in people with type 2 diabetes mellitus. Method: an analytical study of cases and controls was conducted with patients admitted to the Bayamo Diabetic Care Center (CAD), Granma, from 2010 to 2017, 81 with some vascular complication and 162 without any. Results: in the univariate analysis it was observed that the time of evolution of the disease was the only risk factor for the development of a vascular complication. By associating this variable with other hypothetically influential factors, it was found that factors such as age as a risk factor according to sex, smoking, alcoholism, poor metabolic control and the presence of metabolic syndrome, impaired fasting blood glucose, hypertriglyceridemia, hypercholesterolemia, general, abdominal obesity and uncontrolled hypertension appear as statistically significant risk factors. The variables that showed an independent relationship with the risk of developing a vascular complication were the time of evolution of the disease and the presence of metabolic syndrome. Conclusions: the time of evolution of diabetes and metabolic syndrome are independently associated with the appearance of vascular complications in people with type 2 diabetes mellitus(EU)

Carbonyl Back-Bonding Influencing the Rate of Quantum Tunnelling in a Dysprosium Metallocene Single-Molecule Magnet.

The isocarbonyl-ligated metallocene coordination polymers [Cp*2M(µ-OC)W(Cp)(CO)(µ-CO)]∞ were synthesized with M = Gd (1, L = THF) and Dy (2, no L). In a zero direct-current field, the dysprosium version 2 was found to be a single-molecule magnet (SMM), with analysis of the dynamic magnetic susceptibility data revealing that the axial metallocene coordination environment leads to a large anisotropy barrier of 557(18) cm-1 and a fast quantum-tunnelling rate of ∼3.7 ms. Theoretical analysis of two truncated versions of 2, [Cp*2Dy{(µ-OC)W(Cp)(CO)2}2]- (2a), and [Cp*2Dy(OC)2]+ (2b), in which the effects of electron correlation outside the 4f orbital space were studied, revealed that tungsten-to-carbonyl back-donation plays an important role in determining the strength of the competing equatorial field at dysprosium and, hence, the dynamic magnetic properties. The finding that a classical organo-transition-metal bonding scenario can be used as an indirect way of tuning the rate of quantum tunnelling potentially provides an alternative chemical strategy for utilizing the fast magnetic relaxation properties of SMMs.

Trapping of a Pseudotetrahedral CoIIO4 Core in Mixed-Valence Mixed-Geometry [Co5] Coordination Aggregates: Synthetic Marvel, Structures, and Magnetism.

A systematic one-step one-pot multicomponent reaction of Co(ClO4)2·6H2O, H3L (2,6-bis((2-(2-hydroxyethylamino)ethylimino)methyl)-4-methylphenol), and readily available carboxylate salts (RCO2Na; R = CH3, C2H5) resulted in the two structurally novel coordination aggregates [CoIICoIII4L2(µ1,3-O2CCH3)2(µ-OH)2](ClO4)4·4H2O (1) and [CoIICoIII4L2(µ1,3-O2CC2H5)2(µ-OH)(µ-OMe)](ClO4)4·5H2O (2). At room temperature, reactions of H3L in MeOH with cobalt(II) perchlorate salts led to coassembly of initially formed ligand-bound {CoII2} fragments following aerial oxidation of metal centers and bridging by in situ generated hydroxido/alkoxido groups and added carboxylate anions. Available alkoxido arms of the initially formed {L(µ1,3-O2CCH3)(µ-OH/OMe)Co2}+ fragments were utilized to trap a central CoII ion during the formation of [Co5] aggregates. In the solid state, both complexes have been characterized by X-ray crystallography, variable-temperature magnetic measurements, and theoretical studies. Both 1 and 2 show field-induced slow magnetic relaxation that arises from the single pseudo- T d CoII ion present. The structural distortion leads to an easy-axis magnetic anisotropy ( D = -31.31 cm-1 for 1 and -21.88 cm-1 for 2) and a small but non-negligible transverse component ( E/ D = 0.11 for 1 and 0.08 for 2). The theoretical studies also reveal how the O-Co-O bond angles and the interplanar angles control D and E values in 1 and 2. The presence of two diamagnetic {Co2(µ-L)} hosts controls the distortion of the central {CoO4} unit, highlighting a strategy to control single-ion magnetic anisotropy by trapping single ions within a diamagnetic coordination environment.

Slow magnetic relaxation in a {CoIICo} complex containing a high magnetic anisotropy trigonal bipyramidal CoII centre.

We report a trinuclear mixed-valence {CoIICoIII2} complex, where the CoII centre adopts a trigonal bipyramidal geometry, leading to a large, easy-plane magnetic anisotropy and field-induced slow magnetic relaxation with a Raman-like relaxation process.

Ligand-directed synthesis of {Mn} twisted bow-ties.

Two isostructural polymetallic complexes [Mn(µ3-O)2(CH3COO)4(L1)4]- and [Mn(µ3-O)2(CH3COO)4(L2)4]- have been synthesised by using two Schiff base ligands derived from 3,5-diamino-1,2,4-triazole, following two different preparative routes, either using the pre-formed ligand (for L1) or via a metal-mediated template synthesis (for L2). The {Mn} structure is unusual, being based on two corner-sharing perpendicular {Mn3} triangles forming a twisted bow-tie. The magnetic studies reveal antiferromagnetic coupling between Mn(iii) ions while electrochemical experiments are consistent with a quasi-reversible Mn(iii)↔Mn(iv) redox process at the central manganese ion.