Effect of a nutritional intervention based on an energy-reduced Mediterranean diet on environmental impact.

OBJECTIVE: To estimate the environmental impact of a dietary intervention based on an energy-reduced Mediterranean diet (MedDiet) after one year of follow-up. METHODS: Baseline and 1-year follow-up data were used for 5800 participants aged 55-75 years with metabolic syndrome in the PREDIMED-Plus study. Food intake was estimated through a validated semiquantitative food consumption frequency questionnaire, and adherence to the MedDiet was estimated through the Diet Score. Using the EAT-Lancet Commission tables we assessed the influence of dietary intake on environmental impact (through five indicators: greenhouse gas emissions (GHG), land use, energy used, acidification and potential eutrophication). Using multivariable linear regression models, the association between the intervention and changes in each of the environmental factors was assessed. Mediation analyses were carried out to estimate to what extent changes in each of 2 components of the intervention, namely adherence to the MedDiet and caloric reduction, were responsible for the observed reductions in environmental impact. RESULTS: We observed a significant reduction in the intervention group compared to the control group in acidification levels (-13.3 vs. -9.9 g SO2-eq), eutrophication (-5.4 vs. -4.0 g PO4-eq) and land use (-2.7 vs. -1.8 m2). Adherence to the MedDiet partially mediated the association between intervention and reduction of acidification by 15 %, eutrophication by 10 % and land use by 10 %. Caloric reduction partially mediated the association with the same factors by 55 %, 51 % and 38 % respectively. In addition, adherence to the MedDiet fully mediated the association between intervention and reduction in GHG emissions by 56 % and energy use by 53 %. CONCLUSIONS: A nutritional intervention based on consumption of an energy-reduced MedDiet for one year was associated with an improvement in different environmental quality parameters.

Impact of mediterranean diet promotion on environmental sustainability: a longitudinal analysis.

OBJECTIVE: This article aims to estimate the differences in environmental impact (greenhouse gas [GHG] emissions, land use, energy used, acidification and potential eutrophication) after one year of promoting a Mediterranean diet (MD). METHODS: Baseline and 1-year follow-up data from 5800 participants in the PREDIMED-Plus study were used. Each participant's food intake was estimated using validated semi-quantitative food frequency questionnaires, and the adherence to MD using the Dietary Score. The influence of diet on environmental impact was assessed through the EAT-Lancet Commission tables. The influence of diet on environmental impact was assessed through the EAT-Lancet Commission tables. The association between MD adherence and its environmental impact was calculated using adjusted multivariate linear regression models. RESULTS: After one year of intervention, the kcal/day consumed was significantly reduced (-125,1 kcal/day), adherence to a MD pattern was improved (+0,9) and the environmental impact due to the diet was significantly reduced (GHG: -361 g/CO2-eq; Acidification:-11,5 g SO2-eq; Eutrophication:-4,7 g PO4-eq; Energy use:-842,7 kJ; and Land use:-2,2 m2). Higher adherence to MD (high vs. low) was significantly associated with lower environmental impact both at baseline and one year follow-up. Meat products had the greatest environmental impact in all the factors analysed, both at baseline and at one-year follow-up, in spite of the reduction observed in their consumption. CONCLUSIONS: A program promoting a MD, after one year of intervention, significantly reduced the environmental impact in all the factors analysed. Meat products had the greatest environmental impact in all the dimensions analysed.

Evaluation of effectiveness of an art-based museum intervention in reducing loneliness among older adults (ArtGran): a quasi-experimental study.

OBJECTIVES: Loneliness is a public health issue among older adults. We designed an intervention offering 10 sessions with diverse artistic methods (ArtGran). This study assessed the effectiveness of ArtGran in reducing loneliness and its negative effects on health in community-dwelling older adults in 2022 in Barcelona. STUDY DESIGN: Quasi-experimental study, with an intervention group (IG) and a comparison group (CG). METHODS: The sample included residents aged ≥70 years from 6 selected neighbourhoods of Barcelona. In each neighbourhood, an IG and a CG was formed with participants who reported loneliness and without special mobility needs. The participants were referred from primary care centres, social services, and community health centres. We included 138 participants (IG = 63, CG = 75). We collected data on loneliness, quality of life (QoL-5D), mood, and self-perceived health before and after the intervention through validated questionnaires. To assess the effect of the intervention, we built Poisson models with robust variance and linear regression models. RESULTS: At the end of the intervention, participants in the IG were more likely than those in the CG to be able to perform their usual activities without problems (adjusted prevalence ratio [aPR] = 1.22; 95% confidence interval [CI]: 1.02-1.45). Compared with the CG, participants in the IG attending more than half of the sessions had lower levels of loneliness (aPR = 1.36; 95%CI: 1.07-1.73), a better ability to perform their usual activities (aPR [95%CI] = 1.24 [1.05-1.48]), and higher happiness scores (ß = 0.73; P = 0.01). CONCLUSIONS: The effectiveness of the intervention was more pronounced when participants had high attendance. Our results suggest that high attendance of the ArtGran program was helpful in shielding older individuals from loneliness, fostering positive moods, and preserving their functional status.

Development of functional consortia for the pretreatment of compostable lignocellulosic waste: A simple and effective solution to a large-scale problem.

Microorganisms drive the degradation of organic matter thanks to their enzymatic versatility. However, the structure of lignocellulose poses a great challenge for the microbiota inhabiting a compost pile. Our purpose was to increase the biodegradability of vegetable waste in the early stages of the composting process by applying a microbial consortium with lignocelllulolytic capacity. For this, a previous screening was performed among the culturable microbiota from different composting processes to find inoculants with ligninocellulolytic activity. Selected strains were applied as a pure culture and as a microbial consortium. The starting material was composed of tomato plant and pruning remains mixed in a ratio (50:50 v/v), whose humidity was adjusted to around 65%. To determine the ability of both treatments to activate the biodegradation of the mixtures, moisture, organic matter, ash, C/N ratio, 4-day cumulative respirometric index (AT4) and degradation rates of cellulose, hemicellulose and lignin were evaluated. Subsequently, a real composting process was developed in which the performance of the microbial consortium was compared with the composting process without inoculum (control). According to our tests, three microbial strains (Bacillus safensis, Bacillus licheniformis and Fusarium oxysporum) were selected. The results showed that the application of the bacteria strains at low doses (104 CFU g-1 on the complete residual material of the pile) resulted in higher rates of lignocelullose degradation after 10 days of treatment compared to that observed after application of the fungus in pure culture or untreated controls. The implementation of the strategy described in this work resulted in obtaining compost with better agronomic quality than the uninoculated controls. Therefore, the application of this consortium could be considered as an interesting tool for bioactivation of lignocellulosic waste prior to the composting process.

Bellwethers of change: population modelling of North Pacific humpback whales from 2002 through 2021 reveals shift from recovery to climate response.

For the 40 years after the end of commercial whaling in 1976, humpback whale populations in the North Pacific Ocean exhibited a prolonged period of recovery. Using mark-recapture methods on the largest individual photo-identification dataset ever assembled for a cetacean, we estimated annual ocean-basin-wide abundance for the species from 2002 through 2021. Trends in annual estimates describe strong post-whaling era population recovery from 16 875 (± 5955) in 2002 to a peak abundance estimate of 33 488 (± 4455) in 2012. An apparent 20% decline from 2012 to 2021, 33 488 (± 4455) to 26 662 (± 4192), suggests the population abruptly reached carrying capacity due to loss of prey resources. This was particularly evident for humpback whales wintering in Hawai'i, where, by 2021, estimated abundance had declined by 34% from a peak in 2013, down to abundance levels previously seen in 2006, and contrasted to an absence of decline in Mainland Mexico breeding humpbacks. The strongest marine heatwave recorded globally to date during the 2014-2016 period appeared to have altered the course of species recovery, with enduring effects. Extending this time series will allow humpback whales to serve as an indicator species for the ecosystem in the face of a changing climate.

Mystery of the memory engram: History, current knowledge, and unanswered questions.

The quest to understand the memory engram has intrigued humans for centuries. Recent technological advances, including genetic labelling, imaging, optogenetic and chemogenetic techniques, have propelled the field of memory research forward. These tools have enabled researchers to create and erase memory components. While these innovative techniques have yielded invaluable insights, they often focus on specific elements of the memory trace. Genetic labelling may rely on a particular immediate early gene as a marker of activity, optogenetics may activate or inhibit one specific type of neuron, and imaging may capture activity snapshots in a given brain region at specific times. Yet, memories are multifaceted, involving diverse arrays of neuronal subpopulations, circuits, and regions that work in concert to create, store, and retrieve information. Consideration of contributions of both excitatory and inhibitory neurons, micro and macro circuits across brain regions, the dynamic nature of active ensembles, and representational drift is crucial for a comprehensive understanding of the complex nature of memory.

Marinade injection of pork as a possible technological strategy to reduce boar taint: Response and attitude of the consumer.

Sensory evaluation by consumers allows validation of a solution for the food industry to overcome boar taint and market entire male pork with high levels of boar taint considered "unfit for human consumption". One possible technological strategy for improvement is the injection marination of entire male pork to help minimise the impact of boar taint and improve its marketability. The responses of 120 regular pork consumers, to entire males with high levels of boar taint and castrated pork, both injection-marinated, were evaluated. The results showed a similar response between entire and castrated male pork regardless of sex, and the detection of unpleasant odours and flavours (as farm/animal), thus offering a new alternative to the pork sector to mask the boar taint and revalue this pork. However, it was observed that consumer information on castration and animal welfare of entire male pork is scarce, and it is important to increase their knowledge so that they can place a value on this technological strategy with entire male pork and thus increase their purchase intention.

Modelo de riesgo de crisis en acúmulos o estado epiléptico e intervención en servicios de urgencias / Risk model of seizure cluster or status epilepticus and intervention in the emergency department

Objetivos Identificar posibles factores predictores de crisis epilépticas en acúmulos o estado epiléptico (EE) y evaluar si estos pacientes reciben una mayor intervención en urgencias. Metodología Análisis secundario del Registro ACESUR el cual es un registro observacional de cohortes multipropósito, prospectivo y multicéntrico de pacientes adultos con crisis epilépticas en 18 servicios de urgencias. Se recogen variables clínico-asistenciales. Se identifican factores y modelo de riesgo de presentar crisis en acúmulos o EE y se evalúa el efecto de intervención en servicios de urgencias extrahospitalarios y hospitalarios. Resultados Del registro ACESUR se analizan 186 (28%) con crisis en acúmulos (126; 19%) o EE (60; 9%) frente a 478 (72%) pacientes con crisis aislada. El modelo de riesgo de crisis en acúmulo o EE en urgencias incluyó la presencia de alta comorbilidad según índice de Charlson > 3 (OR: 1,60; IC95%: 1,05-2,46; p = 0,030), > 2 fármacos antiepilépticos habituales (OR: 2,29; IC95%: 1,49-3,51; p < 0,001) y crisis focal (OR: 1,56; IC95%: 1,05-2,32; p = 0,027). El ABC del modelo fue de 0,735 (IC95%: 0,693-0,777; p = 0,021). La intervención en pacientes con crisis en acúmulos y EE fue mayor en los servicios de urgencias extrahospitalarios (OR: 2,89; IC95%: 1,91-4,36; p < 0,001) y en los servicios de urgencias hospitalarios (OR: 4,41; IC95%: 2,69-7,22; p < 0,001). Conclusiones El modelo presentado podría ser una herramienta con valor predictivo de utilidad para identificar al paciente adulto con riesgo de presentar crisis en acúmulos o EE en urgencias. Estos pacientes recibieron una mayor intervención frente a pacientes con crisis epiléptica aislada por parte de los servicios de urgencias extrahospitalarios y más aún por los servicios de urgencias hospitalarios en nuestra muestra. (AU)

Objectives To identify possible predictors of seizure cluster or status epilepticus (SE) and to evaluate whether these patients receive greater interventions in emergency departments. Methodology We conducted a secondary analysis of the ACESUR Registry, a multipurpose, observational, prospective, multicentre registry of adult patients with seizures from 18 emergency departments. Clinical and care-related variables were collected. We identified risk factors and risk models for seizure cluster or SE and assessed the effect of interventions by prehospital emergency services and the hospital emergency department. Results We identified a total of 186 (28%) patients from the ACESUR registry with seizure cluster (126 [19%]) or SE (60 [9%]); the remaining 478 patients (72%) had isolated seizures. The risk model for seizure cluster or SE in the emergency department included Charlson Comorbidity Index scores ≥ 3 (OR: 1.60; 95% CI, 1.05-2.46; P = .030), ≥ 2 habitual antiepileptic drugs (OR: 2.29; 95% CI, 1.49-3.51; P < .001), and focal seizures (OR: 1.56; 95% CI, 1.05-2.32; P = .027). The area under the curve of the model was 0.735 (95% CI, 0.693-0.777; P = .021). Patients with seizure cluster and SE received more aggressive interventions both by prehospital emergency services (OR: 2.89; 95% CI, 1.91-4.36; P < .001) and at the emergency department (OR: 4.41; 95% CI, 2.69-7.22; P < .001). Conclusions This risk model may be of prognostic value in identifying adult patients at risk of presenting seizure cluster or SE in the emergency department. In our sample, these patients received more aggressive treatment than adult patients with isolated seizures before arriving at hospital, and even more so in the emergency department. (AU)

Factores predictivos del riesgo de fractura de cadera osteoporótica en octogenarios / Predictive factors of osteoporotic hip fracture in octogenarians

Objetivo Este estudio tiene como objetivo identificar los factores de riesgo asociados con las fracturas de cadera osteoporóticas en octogenarios y busca perfeccionar las estrategias de prevención primaria para estas fracturas. Material y métodos Realizamos un estudio de casos y controles en el que participaron personas de 79 años o más con fracturas de cadera, comparándolas con controles de la misma edad y sexo sin antecedentes de fracturas de cadera. Se recogieron factores epidemiológicos, clínicos, antropométricos y analíticos. Se evaluó la presencia de osteoporosis mediante densitometría ósea. Definimos la sarcopenia según los criterios del Grupo de Trabajo Europeo sobre Sarcopenia en Personas Mayores (EWGSOP2). Resultados Se analizaron 95 pacientes por grupo, con una edad media de 82 años, de los cuales 74% eran mujeres. El análisis multivariado incluyó factores estadísticamente significativos encontrados en el análisis univariado (p<0,05). Estos factores incluyeron el índice de Barthel, la evaluación nutricional mediante la herramienta CONUT, el ácido fólico, la deficiencia de vitamina D, la presencia de fracturas previas, la pérdida de agudeza visual, la circunferencia bicipital, la sarcopenia y la osteoporosis (densitometría en el cuello del fémur). El estado nutricional (OR: 0,08 [0,01-0,61]), los niveles de ácido fólico (OR 0,32 [0,1-1]) y la pérdida de agudeza visual (OR 33,16 [2,91-377,87]) fueron los factores de riesgo independientes asociados con fractura de cadera. Conclusiones La evaluación del estado nutricional en pacientes de edad avanzada, junto con una evaluación geriátrica integral, representan herramientas fácilmente reproducibles y rentables. Estas herramientas pueden ayudar eficazmente a identificar a las personas con riesgo de sufrir fracturas de cadera, contribuyendo así a medidas preventivas más específicas y eficientes. (AU)

Objective This study aims to identify the risk factors associated with osteoporotic hip fractures in octogenarians and seeks to refine primary prevention strategies for these fractures. Material and methods We conducted a case–control study involving individuals aged 79 years and older with hip fractures, comparing them to age- and sex-matched controls without a history of hip fractures. We collected epidemiological, clinical, anthropometric, and analytical factors. We evaluated the presence of osteoporosis using bone densitometry. We defined sarcopenia according the European Working Group on Sarcopenia in Older People criteria (EWGSOP2). Results Ninety-five patients per group were analyzed, with a mean age of 82 years, of which 74% were women. The multivariate analysis included statistically significant factors found in the univariate analysis (P<.05). These factors included the Barthel Index, nutritional assessment using the CONUT tool, folic acid, vitamin D deficiency, presence of previous fractures, loss of visual acuity, bicipital circumference, sarcopenia, and osteoporosis (densitometry in the neck of the femur). The nutritional state (OR: 0.08 [0.01–0.61]), the folic acid levels (OR 0.32 [0.1–1]), and a loss of visual acuity (OR 33.16 [2.91–377.87]) were the independent risk factors associated with hip fracture. Conclusions The assessment of nutritional status in elderly patients, coupled with a comprehensive geriatric assessment, represents easily reproducible and cost-effective tools. These tools can effectively aid in identifying individuals at risk of hip fractures, thereby contributing to more targeted and efficient preventive measures. (AU)

Polimorfismos de los genes CCR5, IL-6, IFN-γ e IL-10 en pacientes cubanos con VIH/sida / Polymorphisms of CCR5, IL-6, IFN-γ and IL-10 genes in Cuban HIV/AIDS patients

Introducción Los estudios genéticos han demostrado asociaciones de varios polimorfismos de un solo nucleótido (SNP) con diferentes tasas de progresión y variación en la susceptibilidad a la infección por VIH. Este estudio tuvo como objetivo estimar la frecuencia de los polimorfismos ccr5Δ32, IL-6-174G/C, IFN-γ+874T/A e IL-10-1082A/G en pacientes cubanos infectados por VIH y un grupo de parejas serodiscordantes para evaluar su influencia sobre el riesgo y la progresión de la enfermedad. Métodos Se realizó un estudio transversal en 120 sujetos atendidos en el Instituto de Medicina Tropical «Pedro Kour» (IPK) y el Hospital Hermanos Ameijeiras entre junio de 2018 y diciembre de 2019. La amplificación de los fragmentos de los genes ccr5, IL-6, IFN-γ e IL-10 se realizó mediante reacción en cadena de la polimerasa seguida por el análisis del polimorfismo de fragmentos de restricción utilizando la enzima NlaIII para la IL-6. El sistema de mutación refractario a la amplificación por PCR se utilizó en el caso de los genes IFN-γ e IL-10. Resultados Las distribuciones alélicas y genotípicas de los genes ccr5, IL-6, IFN-γ e IL-10 no difirieron significativamente entre los dos grupos. Los recuentos celulares y los valores de carga viral en plasma no difirieron significativamente entre los genotipos de los genes ccr5, IL-6, IFN-γ e IL-10. Solo el genotipo IL-6 GC se asoció con valores más altos de carga viral. La combinación de alelos de los cuatro SNP considerados mostró un aumento muy significativo del riesgo de infección por VIH para uno de ellos, pero con una frecuencia muy baja (<1%). Conclusión Este estudio contribuye a evaluar la frecuencia de estos polimorfismos y su influencia en los biomarcadores de la progresión de la infección por VIH en la población cubana con infección por el VIH. (AU)

Introduction Genetic studies have shown associations of several single nucleotide polymorphisms (SNP) with different rates of progression and variation in susceptibility to HIV infection. This study aimed to estimate the frequency of ccr5Δ32, IL-6-174G/C, IFN-γ+874T/A and IL-10-1082A/G polymorphisms in Cuban HIV-infected patients and a group of sero-discordant couples to assess their influence on risk and disease progression. Methods A cross-sectional study was carried out on 120 subjects registered at the Institute of Tropical Medicine «Pedro Kour» (IPK) and the Ameijeiras Hospital from June 2018 until December 2019. The amplification of fragments of the ccr5, IL-6, IFN-γ and IL-10 genes was performed by polymerase chain reaction followed by identification of polymorphisms using the restriction fragment length polymorphism analysis for IL-6 with the restriction enzymes Nla III. Amplification refractory mutation system was used for IFN-γ and IL-10 genes. Results The allelic and genotypic distributions of the genes ccr5, IL-6, IFN-γ and IL-10 did not differ significantly between the two groups. Cell counts and plasma viral load values did not differ significantly between genotypes of the ccr5, IL-6, IFN-γ and IL-10 genes. Only the IL-6 GC genotype was associated with higher viral load values. The combination of alleles of the four considered SNPs showed a highly significant increase in the risk of HIV infection for one of them, but with a very low frequency (<1%). Conclusion This study contributes to evaluating the frequency of these polymorphisms and their influence on biomarkers of the progression of HIV infection in the Cuban HIV-population. (AU)

Modelo de riesgo de crisis en acúmulos o estado epiléptico e intervención en servicios de urgencias / Risk model of seizure cluster or status epilepticus and intervention in the emergency department

Objetivos Identificar posibles factores predictores de crisis epilépticas en acúmulos o estado epiléptico (EE) y evaluar si estos pacientes reciben una mayor intervención en urgencias. Metodología Análisis secundario del Registro ACESUR el cual es un registro observacional de cohortes multipropósito, prospectivo y multicéntrico de pacientes adultos con crisis epilépticas en 18 servicios de urgencias. Se recogen variables clínico-asistenciales. Se identifican factores y modelo de riesgo de presentar crisis en acúmulos o EE y se evalúa el efecto de intervención en servicios de urgencias extrahospitalarios y hospitalarios. Resultados Del registro ACESUR se analizan 186 (28%) con crisis en acúmulos (126; 19%) o EE (60; 9%) frente a 478 (72%) pacientes con crisis aislada. El modelo de riesgo de crisis en acúmulo o EE en urgencias incluyó la presencia de alta comorbilidad según índice de Charlson > 3 (OR: 1,60; IC95%: 1,05-2,46; p = 0,030), > 2 fármacos antiepilépticos habituales (OR: 2,29; IC95%: 1,49-3,51; p < 0,001) y crisis focal (OR: 1,56; IC95%: 1,05-2,32; p = 0,027). El ABC del modelo fue de 0,735 (IC95%: 0,693-0,777; p = 0,021). La intervención en pacientes con crisis en acúmulos y EE fue mayor en los servicios de urgencias extrahospitalarios (OR: 2,89; IC95%: 1,91-4,36; p < 0,001) y en los servicios de urgencias hospitalarios (OR: 4,41; IC95%: 2,69-7,22; p < 0,001). Conclusiones El modelo presentado podría ser una herramienta con valor predictivo de utilidad para identificar al paciente adulto con riesgo de presentar crisis en acúmulos o EE en urgencias. Estos pacientes recibieron una mayor intervención frente a pacientes con crisis epiléptica aislada por parte de los servicios de urgencias extrahospitalarios y más aún por los servicios de urgencias hospitalarios en nuestra muestra. (AU)

Objectives To identify possible predictors of seizure cluster or status epilepticus (SE) and to evaluate whether these patients receive greater interventions in emergency departments. Methodology We conducted a secondary analysis of the ACESUR Registry, a multipurpose, observational, prospective, multicentre registry of adult patients with seizures from 18 emergency departments. Clinical and care-related variables were collected. We identified risk factors and risk models for seizure cluster or SE and assessed the effect of interventions by prehospital emergency services and the hospital emergency department. Results We identified a total of 186 (28%) patients from the ACESUR registry with seizure cluster (126 [19%]) or SE (60 [9%]); the remaining 478 patients (72%) had isolated seizures. The risk model for seizure cluster or SE in the emergency department included Charlson Comorbidity Index scores ≥ 3 (OR: 1.60; 95% CI, 1.05-2.46; P = .030), ≥ 2 habitual antiepileptic drugs (OR: 2.29; 95% CI, 1.49-3.51; P < .001), and focal seizures (OR: 1.56; 95% CI, 1.05-2.32; P = .027). The area under the curve of the model was 0.735 (95% CI, 0.693-0.777; P = .021). Patients with seizure cluster and SE received more aggressive interventions both by prehospital emergency services (OR: 2.89; 95% CI, 1.91-4.36; P < .001) and at the emergency department (OR: 4.41; 95% CI, 2.69-7.22; P < .001). Conclusions This risk model may be of prognostic value in identifying adult patients at risk of presenting seizure cluster or SE in the emergency department. In our sample, these patients received more aggressive treatment than adult patients with isolated seizures before arriving at hospital, and even more so in the emergency department. (AU)

Factores predictivos del riesgo de fractura de cadera osteoporótica en octogenarios / Predictive factors of osteoporotic hip fracture in octogenarians

Objetivo Este estudio tiene como objetivo identificar los factores de riesgo asociados con las fracturas de cadera osteoporóticas en octogenarios y busca perfeccionar las estrategias de prevención primaria para estas fracturas. Material y métodos Realizamos un estudio de casos y controles en el que participaron personas de 79 años o más con fracturas de cadera, comparándolas con controles de la misma edad y sexo sin antecedentes de fracturas de cadera. Se recogieron factores epidemiológicos, clínicos, antropométricos y analíticos. Se evaluó la presencia de osteoporosis mediante densitometría ósea. Definimos la sarcopenia según los criterios del Grupo de Trabajo Europeo sobre Sarcopenia en Personas Mayores (EWGSOP2). Resultados Se analizaron 95 pacientes por grupo, con una edad media de 82 años, de los cuales 74% eran mujeres. El análisis multivariado incluyó factores estadísticamente significativos encontrados en el análisis univariado (p<0,05). Estos factores incluyeron el índice de Barthel, la evaluación nutricional mediante la herramienta CONUT, el ácido fólico, la deficiencia de vitamina D, la presencia de fracturas previas, la pérdida de agudeza visual, la circunferencia bicipital, la sarcopenia y la osteoporosis (densitometría en el cuello del fémur). El estado nutricional (OR: 0,08 [0,01-0,61]), los niveles de ácido fólico (OR 0,32 [0,1-1]) y la pérdida de agudeza visual (OR 33,16 [2,91-377,87]) fueron los factores de riesgo independientes asociados con fractura de cadera. Conclusiones La evaluación del estado nutricional en pacientes de edad avanzada, junto con una evaluación geriátrica integral, representan herramientas fácilmente reproducibles y rentables. Estas herramientas pueden ayudar eficazmente a identificar a las personas con riesgo de sufrir fracturas de cadera, contribuyendo así a medidas preventivas más específicas y eficientes. (AU)

Objective This study aims to identify the risk factors associated with osteoporotic hip fractures in octogenarians and seeks to refine primary prevention strategies for these fractures. Material and methods We conducted a case–control study involving individuals aged 79 years and older with hip fractures, comparing them to age- and sex-matched controls without a history of hip fractures. We collected epidemiological, clinical, anthropometric, and analytical factors. We evaluated the presence of osteoporosis using bone densitometry. We defined sarcopenia according the European Working Group on Sarcopenia in Older People criteria (EWGSOP2). Results Ninety-five patients per group were analyzed, with a mean age of 82 years, of which 74% were women. The multivariate analysis included statistically significant factors found in the univariate analysis (P<.05). These factors included the Barthel Index, nutritional assessment using the CONUT tool, folic acid, vitamin D deficiency, presence of previous fractures, loss of visual acuity, bicipital circumference, sarcopenia, and osteoporosis (densitometry in the neck of the femur). The nutritional state (OR: 0.08 [0.01–0.61]), the folic acid levels (OR 0.32 [0.1–1]), and a loss of visual acuity (OR 33.16 [2.91–377.87]) were the independent risk factors associated with hip fracture. Conclusions The assessment of nutritional status in elderly patients, coupled with a comprehensive geriatric assessment, represents easily reproducible and cost-effective tools. These tools can effectively aid in identifying individuals at risk of hip fractures, thereby contributing to more targeted and efficient preventive measures. (AU)

Polimorfismos de los genes CCR5, IL-6, IFN-γ e IL-10 en pacientes cubanos con VIH/sida / Polymorphisms of CCR5, IL-6, IFN-γ and IL-10 genes in Cuban HIV/AIDS patients

Introducción Los estudios genéticos han demostrado asociaciones de varios polimorfismos de un solo nucleótido (SNP) con diferentes tasas de progresión y variación en la susceptibilidad a la infección por VIH. Este estudio tuvo como objetivo estimar la frecuencia de los polimorfismos ccr5Δ32, IL-6-174G/C, IFN-γ+874T/A e IL-10-1082A/G en pacientes cubanos infectados por VIH y un grupo de parejas serodiscordantes para evaluar su influencia sobre el riesgo y la progresión de la enfermedad. Métodos Se realizó un estudio transversal en 120 sujetos atendidos en el Instituto de Medicina Tropical «Pedro Kour» (IPK) y el Hospital Hermanos Ameijeiras entre junio de 2018 y diciembre de 2019. La amplificación de los fragmentos de los genes ccr5, IL-6, IFN-γ e IL-10 se realizó mediante reacción en cadena de la polimerasa seguida por el análisis del polimorfismo de fragmentos de restricción utilizando la enzima NlaIII para la IL-6. El sistema de mutación refractario a la amplificación por PCR se utilizó en el caso de los genes IFN-γ e IL-10. Resultados Las distribuciones alélicas y genotípicas de los genes ccr5, IL-6, IFN-γ e IL-10 no difirieron significativamente entre los dos grupos. Los recuentos celulares y los valores de carga viral en plasma no difirieron significativamente entre los genotipos de los genes ccr5, IL-6, IFN-γ e IL-10. Solo el genotipo IL-6 GC se asoció con valores más altos de carga viral. La combinación de alelos de los cuatro SNP considerados mostró un aumento muy significativo del riesgo de infección por VIH para uno de ellos, pero con una frecuencia muy baja (<1%). Conclusión Este estudio contribuye a evaluar la frecuencia de estos polimorfismos y su influencia en los biomarcadores de la progresión de la infección por VIH en la población cubana con infección por el VIH. (AU)

Introduction Genetic studies have shown associations of several single nucleotide polymorphisms (SNP) with different rates of progression and variation in susceptibility to HIV infection. This study aimed to estimate the frequency of ccr5Δ32, IL-6-174G/C, IFN-γ+874T/A and IL-10-1082A/G polymorphisms in Cuban HIV-infected patients and a group of sero-discordant couples to assess their influence on risk and disease progression. Methods A cross-sectional study was carried out on 120 subjects registered at the Institute of Tropical Medicine «Pedro Kour» (IPK) and the Ameijeiras Hospital from June 2018 until December 2019. The amplification of fragments of the ccr5, IL-6, IFN-γ and IL-10 genes was performed by polymerase chain reaction followed by identification of polymorphisms using the restriction fragment length polymorphism analysis for IL-6 with the restriction enzymes Nla III. Amplification refractory mutation system was used for IFN-γ and IL-10 genes. Results The allelic and genotypic distributions of the genes ccr5, IL-6, IFN-γ and IL-10 did not differ significantly between the two groups. Cell counts and plasma viral load values did not differ significantly between genotypes of the ccr5, IL-6, IFN-γ and IL-10 genes. Only the IL-6 GC genotype was associated with higher viral load values. The combination of alleles of the four considered SNPs showed a highly significant increase in the risk of HIV infection for one of them, but with a very low frequency (<1%). Conclusion This study contributes to evaluating the frequency of these polymorphisms and their influence on biomarkers of the progression of HIV infection in the Cuban HIV-population. (AU)

The European intercomparison of in-vivo monitoring laboratories: the EIVIC-2020 project.

The EIVIC project was launched in 2020, and the main goal was the organisation of a European intercomparison of in-vivo monitoring laboratories dealing with direct measurements of gamma-emitting radionuclides incorporated into the body of exposed workers. This project was organised jointly by members of EURADOS Working Group 7 on internal dosimetry (WG7), the Federal Office for Radiation Protection (BfS, Germany) and the Radioprotection and Nuclear Safety Institute (IRSN, France). The objective was to assess the implementation of individual-monitoring requirements in EU Member States on the basis of in-vivo measurements and to gain insight into the performance of in-vivo measurements using whole-body counters. In this context, a total of 41 in-vivo monitoring laboratories from 21 countries, together with JRC (EC) and IAEA participated. The results were submitted in terms of activity (Bq) of the radionuclides identified inside phantoms that were circulated to all participants. The measured data were compared with reference activity values to evaluate the corresponding bias according to the standards ISO 28218 and ISO 13528. In general, the results of the different exercises are good, and most facilities are in conformity with the criteria for the bias and z-scores in the ISO standards. Furthermore, information about technical and organisational characteristics of the participating laboratories was collected to test if they had a significant influence on the reported results.

[Translated article] Type III acromioclavicular dislocation: Mid term results after operative and non-operative treatment.

INTRODUCTION: Controversy exists in the literature about the best treatment for type III acromioclavicular dislocations. The aim of this study is to compare functional results between surgical and conservative treatment in type III acromioclavicular joint dislocations. MATERIAL AND METHOD: We retrospectively evaluated the records of 30 patients from our area with acute type III acromioclavicular dislocations that were treated from January 1st, 2016 to December 31st, 2020. Fifteen patients were treated surgically and 15 conservatively. Follow-up mean time was 37.93 months in operative group and 35.73 months in non-operative group. Results obtained on the Constant score was the main variable analysed and results obtained on the Oxford score and the Visual Analogue Scale for pain were the secondary variables. Epidemiological variables were analysed, as well as range of mobility in injured shoulder and subjective and radiological variables (distance between the superior border of the acromion and the superior border of the clavicle's distal end and presence of osteoarthritis in the acromioclavicular joint). RESULTS: Functional evaluation scores did not show differences between the two groups (Constant: operative 82/non-operative 86.38, p 0.412; Oxford: operative 42/non-operative 44.80, p 0.126) nor did Visual Analogue Scale (operative 1/non-operative 0.20, p 0.345). Subjective evaluation of the injured shoulder was excellent or good in 80% of the patients in both groups. Measurement of the distance between the superior border of the acromion and the superior border of the clavicle's distal end were significantly higher in non-operative group (operative 8.95/non-operative 14.21, p 0.008). CONCLUSIONS: Although radiographic results were better in the surgical treatment group, functional evaluation scores did not show significant differences between the two groups. These results do not support the routine use of surgical treatment for grade III acromioclavicular dislocations.

Predictive factors of osteoporotic hip fracture in octogenarians.

OBJECTIVE: This study aims to identify the risk factors associated with osteoporotic hip fractures in octogenarians and seeks to refine primary prevention strategies for these fractures. MATERIAL AND METHODS: We conducted a case-control study involving individuals aged 79 years and older with hip fractures, comparing them to age- and sex-matched controls without a history of hip fractures. We collected epidemiological, clinical, anthropometric, and analytical factors. We evaluated the presence of osteoporosis using bone densitometry. We defined sarcopenia according the European Working Group on Sarcopenia in Older People criteria (EWGSOP2). RESULTS: Ninety-five patients per group were analyzed, with a mean age of 82 years, of which 74% were women. The multivariate analysis included statistically significant factors found in the univariate analysis (p < 0.05). These factors included the Barthel Index, nutritional assessment using the CONUT tool, folic acid, vitamin D deficiency, presence of previous fractures, loss of visual acuity, bicipital circumference, sarcopenia, and osteoporosis (densitometry in the neck of the femur). The Nutritional state (OR: 0.08 [0.01-0.61]), the folic acid levels (OR 0.32 [0.1-1]), and a loss of visual acuity (OR 33.16 [2.91-377.87]) were the independent risk factors associated with hip fracture. CONCLUSIONS: The assessment of nutritional status in elderly patients, coupled with a comprehensive geriatric assessment, represents easily reproducible and cost-effective tools. These tools can effectively aid in identifying individuals at risk of hip fractures, thereby contributing to more targeted and efficient preventive measures.

Assessing the reaction to and efficacy of the Screener drug discovery and development board game as a pedagogical tool in postgraduate courses.

Screener, a board game supplemented with online resources, was introduced and distributed by the Brazilian Society of Pharmacology and Experimental Therapeutics to postgraduate programs as an instructional tool for the process of drug discovery and development (DDD). In this study, we provided a comprehensive analysis of five critical aspects for evaluating the quality of educational games, namely: 1) description of the intervention; 2) underlying pedagogical theory; 3) identification of local educational gaps; 4) impact on diverse stakeholders; and 5) elucidation of iterative quality enhancement processes. We also present qualitative and quantitative assessments of the effectiveness of this game in 11 postgraduate courses. We employed the MEEGA+ online survey, comprising thirty-three close-ended unipolar items with 5-point Likert-type response scales, to assess student perceptions of the quality and utility of Screener. Based on 115 responses, the results indicated a highly positive outlook among students. In addition, we performed a preliminary evaluation of learning outcomes in two courses involving 28 students. Pre- and post-quizzes were applied, each consisting of 20 True/False questions directly aligned with the game's content. The analysis revealed significant improvement in students' performance following engagement with the game, with scores rising from 8.4 to 13.3 (P<0.0001, paired t-test) and 9.7 to 12.7 (P<0.0001, paired t-test). These findings underscore the utility of Screener as an enjoyable and effective tool for facilitating a positive learning experience in the DDD process. Notably, the game can also reduce the educational disparities across different regions of our continental country.

Impact of Periodontitis on the Leakage of Oral Bacteria to the Gut.

Colorectal cancer (CRC) and periodontitis have recently been related due to the higher incidence of CRC in periodontal patients and the involvement of periodontal pathogens in carcinogenesis, suggesting that leakage from the oral cavity to the gut occurs. However, the magnitude of this pass-through in healthy individuals is controversial, and the effect that periodontitis could play in it is understudied. To evaluate the rate of bacterial leakage from the oral cavity to the gut, we analyzed the microbial composition of saliva, subgingival plaque, and fecal samples in healthy individuals without gastrointestinal disorders, including 20 periodontitis patients and 20 oral healthy controls, using PacBio full-length 16S rRNA gene sequencing. As expected, we observed a higher abundance of periodontal pathogens in the subgingival plaque and saliva of periodontal patients. In contrast, no significant differences were found between the fecal samples of both groups, implying that gut samples from periodontal patients were not enriched in periodontal pathogens. Fusobacterium nucleatum, a biomarker of CRC, was not found in the fecal samples of any participant. Our study does show a small leakage of some oral bacteria (mainly streptococci) to the gut, regardless of periodontal health status. Future studies should test whether other host factors and/or the preexistence of a gut disorder must be present in addition to periodontitis to promote the colonization of the gut by oral pathogens. The absence of periodontal pathogens in feces supports the idea that these bacteria could be used as biomarkers of intestinal disorders, including CRC.