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1.
Integr Org Biol ; 6(1): obae019, 2024.
Article de Anglais | MEDLINE | ID: mdl-38949169

RÉSUMÉ

Understanding the factors that influence morphological evolution is a major goal in biology. One such factor is the ability to acquire and process prey. Prey hardness and evasiveness are important properties that can impact evolution of the jaws. Similar diets and biomechanical systems have repeatedly evolved among fish lineages, providing an opportunity to test for shared patterns of evolution across distantly related organisms. Four-bar linkages are structures often used by animals to transmit force and motion during feeding and that provide an excellent system to understand the impact of diet on morphological and biomechanical evolution. Here, we tested how diet influences the evolutionary dynamics of the oral four-bar linkage system in wrasses (Family: Labridae) and cichlids (Family: Cichlidae). We found that shifts in prey hardness/evasiveness are associated with limited modifications in four-bar geometry across these two distantly related fish lineages. Wrasse and cichlid four-bar systems largely exhibit many-to-one mapping in response to dietary shifts. Across two iconic adaptive radiations of fish, an optimal four-bar geometry has largely been co-opted for different dietary functions during their extensive ecological diversification. Given the exceptional jaw diversity of both lineages, many-to-one mapping of morphology to mechanical properties may be a core feature of fish adaptive radiation.


Entender los factores que influyen en la evolución morfológica es un objetivo principal en biología. Uno de esos factores es la capacidad para atrapar y procesar presas. La dureza y evasividad de las presas son propiedades importantes que pueden impactar la evolución de las mandíbulas. Dietas y sistemas biomecánicos similares han evolucionado repetidamente entre linajes de peces, proporcionando una oportunidad para evaluar patrones evolutivos compartidos entre organismos lejanamente emparentados. Los mecanismos de cuatro barras en animales, usados usualmente para transmitir fuerza y movilidad durante la alimentación, proveen un sistema excelente para entender el efecto de la dieta en la evolución morfológica y biomecánica. Aquí, evaluamos cómo la dieta influye en las dinámicas evolutivas del mecanismo oral de cuatro barras en lábridos (Familia: Labridae) y cíclidos (Familia: Cichlidae). Encontramos que los cambios en la dureza y evasividad de las presas están asociados con modificaciones limitadas de la geometría de las cuatro barras entre esos dos linajes de peces lejanamente emparentados. Los mecanismos de cuatro barras de los lábridos y cíclidos muestran en gran medida diferentes estructuras que conducen a un mismo resultado funcional en respuesta a cambios de dieta. A lo largo de dos radiaciones adaptativas icónicas de peces, una geometría óptima de cuatro barras ha sido en gran medida adaptada para diferentes funciones dietéticas durante una diversificación ecológica extensa. Dada la excepcional diversidad de mandíbulas en ambos linajes, estructuras que conducen a un mismo resultado en morfología y propiedades mecánicas podrían ser características esenciales durante la radiación adaptativa de peces.Translated by Saúl Dominguez-Guerrero, Postdoctoral Associate- Yale University.


Comprendre les facteurs qui influencent l'évolution morphologique est un objectif majeur en biologie. L'un de ces facteurs est la capacité d'acquérir et de traiter des proies. La dureté et le caractère évasif des proies sont des propriétés importantes qui peuvent avoir un impact sur l'évolution des mâchoires. Des régimes alimentaires et des systèmes biomécaniques similaires ont évolué à plusieurs reprises parmi les lignées de poissons, offrant ainsi l'occasion de tester des modèles d'évolution partagés entre des organismes éloignés. Les liaisons à quatre barres sont des structures souvent utilisées par les animaux pour transmettre la force et le mouvement pendant l'alimentation, et qui constituent un excellent système pour comprendre l'impact du régime alimentaire sur l'évolution morphologique et biomécanique. Ici, nous avons testé comment le régime alimentaire influence la dynamique évolutive du système de liaison orale à quatre barres chez les labres (famille : Labridae) et les cichlidés (famille : Cichlidae). Nous avons constaté que les changements dans la dureté/le caractère évasif des proies sont associés à des modifications limitées de la géométrie à quatre barres dans ces deux lignées de poissons éloignées. Les systèmes à quatre barres de labres et de cichlidés présentent en grande partie une cartographie plusieurs-à-un en réponse aux changementsde régime alimentaire. Pour deux radiations adaptatives emblématiques de poissons, une géométrie optimale à quatre barres a été largement adoptée pour différentes fonctions alimentaires au cours de leur vaste diversification écologique. Compte tenu de la diversité exceptionnelle des mâchoires des deux lignées, la cartographie plusieurs-à-un de la morphologie aux propriétés mécaniques peut être une caractéristique essentielle du rayonnement adaptatif des poissons.Translated by Pauline Raimondeau, Postdoctoral Associate, Yale University.

2.
ESMO Open ; 9(7): 103619, 2024 Jun 28.
Article de Anglais | MEDLINE | ID: mdl-38943737

RÉSUMÉ

BACKGROUND: The characterization and comparison of gene expression and intrinsic subtype (IS) changes induced by neoadjuvant chemotherapy (NACT) and endocrine therapy in hormone receptor-positive (HR+)/human epidermal growth factor receptor 2 (HER2)-low versus HR+/HER2-0 breast cancer (BC) has not been conducted so far. Most evidence on the association of HER2 status with pathologic responses and prognosis in HR+/HER2-negative BC is controversial and restricted to NACT-treated disease. Similarly, a temporal heterogeneity in HER2 status has been described only with NACT. METHODS: We retrospectively recruited a consecutive cohort of 186 patients with stage I-IIIB HR+/HER2-negative BC treated with neoadjuvant therapy (NAT). Available diagnostic biopsies and surgical samples were characterized for main pathological features, PAM50 IS and ROR-P score, and gene expression. Associations with pathologic complete response, residual cancer burden-0/I, event-free survival (EFS) and overall survival (OS) based on HER2 status were assessed. Pre/post pathologic/molecular changes were analyzed in matched samples. RESULTS: The HER2-low (62.9%) and HER2-0 (37.1%) cohorts did not differ significantly in main baseline features, treatments administered, breast-conserving surgery, pathologic complete response and residual cancer burden-0/I rates, EFS, and OS. NAT induced, regardless of HER2 status, a significant reduction of estrogen receptor/progesterone receptor and Ki67 levels, a down-regulation of PAM50 proliferation- and luminal-related genes/signatures, an up-regulation of selected immune genes, and a shift towards less aggressive IS and lower ROR-P. Moreover, 25% of HER2-0 changed to HER2-low and 34% HER2-low became HER2-0. HER2 shifts were significant after NACT (P < 0.001), not neoadjuvant endocrine therapy (P = 0.063), with consistent ERBB2 mRNA level dynamics. HER2 changes were not associated with EFS/OS. CONCLUSIONS: HER2-low and HER2-0 status change after NAT in ∼30% of cases, mostly after NACT. Targeted adjuvant strategies should be investigated accordingly. Molecular downstaging with current chemo/endocrine agents and immunotherapy should not rely on HER2 immunohistochemical levels in HR+/HER2-negative BC. Instead, HER2-low-targeted approaches should be explored to pursue more effective and/or less toxic dimensional downstaging.

3.
Gastroenterol Hepatol ; : 502223, 2024 Jun 20.
Article de Anglais, Espagnol | MEDLINE | ID: mdl-38908683

RÉSUMÉ

OBJECTIVES: To search for parameters susceptible to optimization when performing capsule endoscopy (CE) in a third level hospital with high volume and experience in this test. PATIENTS AND METHODS: Retrospective observational study, including 1325 CEs performed between 2017 and 2022. Overall diagnostic yield, effective diagnostic yield, by indication, place of request and waiting list, as well as complete examination rate and cleansing degree were analyzed. RESULTS: The overall diagnostic yield was 70.99%, while the effective diagnostic yield was 72.7%. Diagnostic yields varied between 60.2% and 77.9% depending on the indication and between 64.7% and 74.3% depending on the requesting center. The mean waiting list was 101.15 days, with a tendency to worse results when the waiting list was longer. A total of 77.8% of the examinations were complete. Completion rates were lower in patients >70 years of age (p=0.001), as well as in those with gastric transit >60 minutes (p=0.000). A total of 77.3% were clean, with debris that did not impede diagnosis being found in 16.9% and debris that did impede diagnosis in 5.8%. There was a relationship, although not significant, between cleansing degree and age. CONCLUSIONS: The diagnostic yields of CE in our center are in line with those previously reported. Differences were found according to the place of request. Waiting list could also influence diagnostic yield. Completion rates are lower in >70 years of age and when gastric transit is >60 minutes. Cleansing degree achieved is acceptable.

5.
Rev. clín. esp. (Ed. impr.) ; 224(4): 225-232, Abr. 2024. ilus
Article de Espagnol | IBECS | ID: ibc-232257

RÉSUMÉ

La anemia perioperatoria constituye un factor independiente de riesgo de morbimortalidad posoperatoria. Sin embargo, persisten barreras conceptuales, logísticas y administrativas que dificultan la implementación generalizada de protocolos para su manejo. El coordinador del proyecto convocó a un grupo multidisciplinar de ocho profesionales para elaborar un documento de consenso sobre el manejo de la anemia perioperatoria, con base a en serie puntos claves (PCs) relativos a su prevalencia, consecuencias, diagnóstico y tratamiento. Estos PCs fueron evaluados utilizando una escala Likert de 5 puntos, desde «totalmente en desacuerdo [1]» a «totalmente de acuerdo [5]». Cada PC se consideró consensuado si recibía una puntuación de 4 o 5 por al menos siete participantes (> 75%). A partir de los 36 PCs consensuados, se construyeron algoritmos diagnóstico-terapéuticos que pueden facilitar la implementación de programas de identificación precoz y manejo adecuado de la anemia perioperatoria, adaptados a las características de las instituciones hospitalarias de nuestro país.(AU)


Perioperative anemia is an independent risk factor for postoperative morbidity and mortality. However, conceptual, logistical and administrative barriers persist that hinder the widespread implementation of protocols for their management. The project coordinator convened a multidisciplinary group of 9 experienced professionals to develop perioperative anemia management algorithms, based on a series of key points (KPs) related to its prevalence, consequences, diagnosis and treatment. These KPs were assessed using a 5-point Likert scale, from “strongly disagree [1]” to “strongly agree [5]”. For each KP, consensus was reached when receiving a score of 4 or 5 from at least 7 participants (>75%). Based on the 36 KPs agreed upon, diagnostic-therapeutic algorithms were developed that we believe can facilitate the implementation of programs for early identification and adequate management of perioperative anemia, adapted to the characteristics of the different institutions in our country.(AU)


Sujet(s)
Humains , Mâle , Femelle , Anémie/complications , Indicateurs de Morbidité et de Mortalité , Soins postopératoires , Anémie/diagnostic , Anémie/thérapie , Espagne , Soins préopératoires , Période préopératoire , Facteurs de risque , Consensus
6.
Dalton Trans ; 53(18): 8041-8049, 2024 May 07.
Article de Anglais | MEDLINE | ID: mdl-38652019

RÉSUMÉ

Octahedrally coordinated spin crossover (SCO) FeII complexes represent an important class of switchable molecular materials. This study presents the synthesis and characterisation of a novel complex, [FeII(ppt-2Fph)2]0·2MeOH, where ppt-2Fph is a new asymmetric ionogenic tridentate planar ligand 2-(5-(2-fluorophenyl)-4H-1,2,4-triazol-3-yl)-6-(1H-pyrazol-1-yl)pyridine. The complex exhibits a hysteretic thermally induced SCO transition at 285 K on cooling and at 293 K on heating, as well as light induced excited spin state trapping (LIESST) at lower temperatures with a relaxation T(LIESST) temperature of 73 K. Single crystal analysis in both spin states shows that the compound undergoes an unusual partial (25%) reversible order-disorder of the asymmetrically substituted phenyl group coupled to the thermal SCO. The highly cooperative SCO transition, analysed by structural energy framework analysis at the B3LYP/6-31G(d,p) theory level, revealed the co-existence of stabilising and destabilising energy variations in the lattice. The observed antagonism of intermolecular interactions and synchronous rotational disorder, which contributes to the overall entropy change, is suggested to be at the origin of the cooperative SCO transition.

7.
Adv Biol (Weinh) ; 8(6): e2400069, 2024 06.
Article de Anglais | MEDLINE | ID: mdl-38548661

RÉSUMÉ

Engagement in physical activity, across various sports, promotes a diverse microbiota in active individuals. This study examines the gut microbiota of Colombian athletes, specifically weightlifters (n = 16) and road cyclists (n = 13), compared to non-athletes (n = 15). Using Kruskal-Wallis tests, the physical activity level of a group of non-athletic individuals and the sports experience of a group of professional athletes is analyzed. The median age of participants is 24 years, comprising 25 men and 19 women. The microbiota is collected using fecal samples. Participants provided these samples during their pre-competitive stage, specifically during the concentration phase occurring two weeks prior to national competitions. This timing is chosen to capture the microbial composition during a period of heightened physical preparation. Questionnaire responses and microbial composition assessments identify disparities among groups. Microbial composition analysis explores core microbiome, abundance, and taxonomy using Pavian, MicrobiomeAnalyst 2.0, and GraPhlAn. ANCOM-BC2 reveals differentially abundant species. Road cyclists exhibit decreased Bacteria and increased Archaea abundance. Phylum-level variations included Planctomycetes, Acidobacteria, and Proteobacteria, while Bacteroidetes prevailed. Key families influencing gut microbiota are Bacteroidaceae, Muribaculaceae, and Selenomonadaceae. Weightlifters exhibit unique viral and archaeal community connections, while cyclists showed specialized microbial interplay influenced by endurance exercise. Correlation network analysis emphasizes distinctive microbial interactions within athlete groups, shedding light on the impact of physical activities on gut microbiota and athlete health.


Sujet(s)
Archéobactéries , Athlètes , Bactéries , Cyclisme , Microbiome gastro-intestinal , Humains , Microbiome gastro-intestinal/physiologie , Mâle , Femelle , Colombie , Adulte , Athlètes/statistiques et données numériques , Archéobactéries/isolement et purification , Jeune adulte , Bactéries/classification , Bactéries/isolement et purification , Bactéries/génétique , Haltérophilie/physiologie , Fèces/microbiologie
8.
Rev Clin Esp (Barc) ; 224(4): 225-232, 2024 Apr.
Article de Anglais | MEDLINE | ID: mdl-38423382

RÉSUMÉ

Perioperative anemia is an independent risk factor for postoperative morbidity and mortality. However, conceptual, logistical and administrative barriers persist that hinder the widespread implementation of protocols for their management. The project coordinator convened a multidisciplinary group of 8 experienced professionals to develop perioperative anemia management algorithms, based on a series of key points (KPs) related to its prevalence, consequences, diagnosis and treatment. These KPs were assessed using a 5-point Likert scale, from "strongly disagree [1]" to "strongly agree [5]". For each KP, consensus was reached when receiving a score of 4 or 5 from at least 7 participants (>75%). Based on the 36 KPs agreed upon, diagnostic-therapeutic algorithms were developed that we believe can facilitate the implementation of programs for early identification and adequate management of perioperative anemia, adapted to the characteristics of the different institutions in our country.


Sujet(s)
Anémie , Fer , Humains , Fer/usage thérapeutique , Consensus , Espagne , Anémie/diagnostic , Anémie/épidémiologie , Anémie/thérapie , Facteurs de risque
9.
Obes Surg ; 34(4): 1174-1184, 2024 Apr.
Article de Anglais | MEDLINE | ID: mdl-38367125

RÉSUMÉ

INTRODUCTION: Iron has different physiological processes and is regulated by hepcidin that is also an acute phase reactant, which increases with inflammation. Obesity produces a pro-inflammatory state, affecting directly the normal regulation of iron, causing ferritin (FER) deficiency. FER is used as the only indicator of the status of iron in patients with obesity, so the majority of them would be underdiagnosed, leading to a high prevalence of iron deficiency (ID) and anemia. The aim of this study is to evaluate the diagnostic tests: transferrin saturation (TS), FER, and C-reactive protein (CRP) vs. FER with the objective of analyzing the most accurate variable for the diagnosis of ID. MATERIALS AND METHODS: We present a cross-sectional, analytical, and retrospective study, evaluating the diagnostic tests in 96 patients, to whom two methods were applied for the diagnosis of ID: method 1 (FER < 30 ng/mL) and method 2 divided into 2A (FER < 30 ng/mL), 2B (FER 30-100 ng/mL + CRP ≥ 5 mg/L), 2C (FER 100-300 ng/mL + CRP ≥ 5 mg/L + TS < 20%), and 2D (TS < 20%). RESULTS: The prevalence of ID obtained using method 1 was 30.2% while 69.8% presented ID using total method 2, confirming an underdiagnosis of 39.6%. CONCLUSION: The inflammatory state in patients with obesity must be considered in the diagnosis of ID. The use of TS, FER, and CRP has greater validity than the use of serum FER for the diagnosis of ID in patients with obesity.


Sujet(s)
Anémie par carence en fer , Chirurgie bariatrique , Carences en fer , Obésité morbide , Transferrine , Humains , Marqueurs biologiques , Protéine C-réactive/analyse , Protéine C-réactive/métabolisme , Études transversales , Ferritines/analyse , Ferritines/sang , Fer , Obésité/complications , Obésité morbide/chirurgie , Études rétrospectives , Transferrine/analyse , Transferrine/métabolisme , Transferrines , Inflammation/sang , Inflammation/métabolisme
10.
Neurología (Barc., Ed. impr.) ; 39(1): 63-83, Jan.-Feb. 2024. ilus, tab
Article de Espagnol | IBECS | ID: ibc-229830

RÉSUMÉ

Introducción La ludificación consiste en emplear el juego en contextos no lúdicos. Su uso en la rehabilitación motora de patologías neurológicas está muy extendido, pero sobre todo en pacientes adultos. El objetivo de esta revisión fue describir el uso de la ludificación en los tratamientos de rehabilitación en niños y adolescentes con afectación neuromotora. Métodos Se realizó una revisión sistemática de ensayos clínicos en diferentes bases de datos: Medline (a través de Pubmed), Scielo, SCOPUS, Dialnet, Cinahl y PEDro de la literatura científica publicada hasta la fecha siguiendo el protocolo PRISMA. La calidad metodológica de los estudios identificados se evaluó a través de la escala PEDro. Resultados De un total de 469 estudios localizados se seleccionaron 10 ensayos clínicos que cumplieron los criterios de inclusión. Se analizaron los sistemas de ludificación utilizados como parte del tratamiento rehabilitador en distintas afecciones neuromotoras en niños y adolescentes. La parálisis cerebral fue la afección con mayor número de estudios (n = 6), seguida del trastorno del desarrollo de la coordinación (n = 3). También se estudió la alteración del equilibrio y coordinación por causa neurológica (n = 1). Conclusión El uso de la ludificación en rehabilitación aporta beneficios al tratamiento convencional de las alteraciones neuromotoras en niños y adolescentes, siendo el incremento de la motivación y de la adherencia terapéutica los que mayor consenso han alcanzado entre autores. Fuerza, equilibrio, funcionalidad y coordinación son otras variables analizadas que, si bien sugieren mejoras, necesitarían futuras investigaciones para determinar una óptima dosificación. (AU)


Introduction Gamification consists of the use of games in non-playful contexts. It is widely employed in the motor rehabilitation of neurological diseases, but mainly in adult patients. The objective of this review was to describe the use of gamification in the rehabilitation of children and adolescents with neuromotor impairment. Methods We performed a systematic review of clinical trials published to date on the MEDLINE (PubMed), Scielo, SCOPUS, Dialnet, CINAHL, and PEDro databases, following the PRISMA protocol. The methodological quality of the studies identified was assessed using the PEDro scale. Results From a total of 469 studies, 10 clinical trials met the inclusion criteria. We analysed the gamification systems used as part of the rehabilitation treatment of different neuromotor conditions in children and adolescents. Cerebral palsy was the most frequently studied condition (6 studies), followed by developmental coordination disorder (3), and neurological impairment of balance and coordination (1). Conclusion The use of gamification in rehabilitation is helpful in the conventional treatment of neuromotor disorders in children and adolescents, with increased motivation and therapeutic adherence being the benefits with the greatest consensus among authors. While strength, balance, functional status, and coordination also appear to improve, future research should aim to determine an optimal dosage. (AU)


Sujet(s)
Humains , Nouveau-né , Nourrisson , Enfant d'âge préscolaire , Enfant , Adolescent , Rééducation neurologique
11.
Neurología (Barc., Ed. impr.) ; 39(1): 63-83, Jan.-Feb. 2024. ilus, tab
Article de Espagnol | IBECS | ID: ibc-EMG-447

RÉSUMÉ

Introducción La ludificación consiste en emplear el juego en contextos no lúdicos. Su uso en la rehabilitación motora de patologías neurológicas está muy extendido, pero sobre todo en pacientes adultos. El objetivo de esta revisión fue describir el uso de la ludificación en los tratamientos de rehabilitación en niños y adolescentes con afectación neuromotora. Métodos Se realizó una revisión sistemática de ensayos clínicos en diferentes bases de datos: Medline (a través de Pubmed), Scielo, SCOPUS, Dialnet, Cinahl y PEDro de la literatura científica publicada hasta la fecha siguiendo el protocolo PRISMA. La calidad metodológica de los estudios identificados se evaluó a través de la escala PEDro. Resultados De un total de 469 estudios localizados se seleccionaron 10 ensayos clínicos que cumplieron los criterios de inclusión. Se analizaron los sistemas de ludificación utilizados como parte del tratamiento rehabilitador en distintas afecciones neuromotoras en niños y adolescentes. La parálisis cerebral fue la afección con mayor número de estudios (n = 6), seguida del trastorno del desarrollo de la coordinación (n = 3). También se estudió la alteración del equilibrio y coordinación por causa neurológica (n = 1). Conclusión El uso de la ludificación en rehabilitación aporta beneficios al tratamiento convencional de las alteraciones neuromotoras en niños y adolescentes, siendo el incremento de la motivación y de la adherencia terapéutica los que mayor consenso han alcanzado entre autores. Fuerza, equilibrio, funcionalidad y coordinación son otras variables analizadas que, si bien sugieren mejoras, necesitarían futuras investigaciones para determinar una óptima dosificación. (AU)


Introduction Gamification consists of the use of games in non-playful contexts. It is widely employed in the motor rehabilitation of neurological diseases, but mainly in adult patients. The objective of this review was to describe the use of gamification in the rehabilitation of children and adolescents with neuromotor impairment. Methods We performed a systematic review of clinical trials published to date on the MEDLINE (PubMed), Scielo, SCOPUS, Dialnet, CINAHL, and PEDro databases, following the PRISMA protocol. The methodological quality of the studies identified was assessed using the PEDro scale. Results From a total of 469 studies, 10 clinical trials met the inclusion criteria. We analysed the gamification systems used as part of the rehabilitation treatment of different neuromotor conditions in children and adolescents. Cerebral palsy was the most frequently studied condition (6 studies), followed by developmental coordination disorder (3), and neurological impairment of balance and coordination (1). Conclusion The use of gamification in rehabilitation is helpful in the conventional treatment of neuromotor disorders in children and adolescents, with increased motivation and therapeutic adherence being the benefits with the greatest consensus among authors. While strength, balance, functional status, and coordination also appear to improve, future research should aim to determine an optimal dosage. (AU)


Sujet(s)
Humains , Nouveau-né , Nourrisson , Enfant d'âge préscolaire , Enfant , Adolescent , Rééducation neurologique
12.
Rev Clin Esp (Barc) ; 224(2): 105-113, 2024 Feb.
Article de Anglais | MEDLINE | ID: mdl-38280424

RÉSUMÉ

OBJECTIVES: The aim of this study was to assess the prevalence of malnutrition, the clinical characteristics associated with malnutrition and the impact of nutritional status on mortality, quality of life, self-care abilities, and activities of daily living in the older patients with advanced heart failure. METHODS: A prospective multicentre cohort study including 260 community-dwelling elderly patients with advanced HF was conducted between June 2017 and December 2019. The study was carried out in 22 primary healthcare centres, three university hospitals, one acute-care hospital, and one geriatric rehabilitation unit in the city of Barcelona (Spain). Nutritional status was assessed at baseline using the Mini Nutritional Assessment questionnaire. Patient-reported outcome measures included quality of life (EQ-5D-3L), self-care behaviour (European Heart Failure Self-care Behaviour Scale) and impact on activities of daily living (Barthel Index). RESULTS: Using the MNA-SF, 126 (48.5%) patients were identified as being at risk of malnutrition and 33 (12.7%) patients as having confirmed malnutrition. Compared to HF patients with normal nutritional status, patients with confirmed malnutrition were significantly older, with a lower BMI, and with reduced haemoglobin levels. During follow-up (median 14.9 months, Interquartile Range; 4.9-26.9), 133 (51.2%) of the included participants died, and mortality was significantly higher among patients identified as having malnutrition (p < 0.001). Better Barthel index and quality of life scores were inversely related to the risk of malnutrition, [Odds Ratio (OR) 0.97 (95% Confidence interval 0.96; 0.98) and OR 0.98 (95% Confidence interval, 0.96; 0.99)], respectively. Higher scores in the European Heart Failure Self-care Behaviour Scale, which implies worse self care, were related to higher malnutrition risk, OR 1.05 (95% Confidence interval, 1.02; 1.09. Adjusted multivariate logistic model found that malnutrition was significantly associated with poor quality of life, and adverse impacts on daily activities and self-care. CONCLUSIONS: In community-dwelling older patients with advanced HF, malnutrition was associated with worse patient reported outcome measures related to poor quality of life, and adverse impacts on self-care and daily activities. Nutritional status must be systematically addressed by primary care nurses and family doctors to improve survival rates in these patients. It would be helpful the incorporation of expert professionals in nutrition in the primary health care centres.


Sujet(s)
Défaillance cardiaque , Malnutrition , Humains , Sujet âgé , Études de cohortes , Études prospectives , Activités de la vie quotidienne , Qualité de vie , Malnutrition/épidémiologie , Malnutrition/complications , Défaillance cardiaque/complications , Évaluation gériatrique
13.
Rev Sci Instrum ; 95(1)2024 Jan 01.
Article de Anglais | MEDLINE | ID: mdl-38206100

RÉSUMÉ

The imaging heavy ion beam probe (i-HIBP) diagnostic has been successfully commissioned at ASDEX Upgrade. The i-HIBP injects a primary neutral beam into the plasma, where it is ionized, leading to a fan of secondary (charged) beams. These are deflected by the magnetic field of the tokamak and collected by a scintillator detector, generating a strike-line light pattern that encodes information on the density, electrostatic potential, and magnetic field of the plasma edge. The first measurements have been made, demonstrating the proof-of-principle of this diagnostic technique. A primary beam of 85/87Rb has been used with energies ranging between 60 and 72 keV and extracted currents up to 1.5 mA. The first signals have been obtained in experiments covering a wide range of parameter spaces, with plasma currents (Ip) between 0.2 and 0.8 MA and on-axis toroidal magnetic field (Bt) between 1.9 and 2.7 T. Low densities appear to be critical for the performance of the diagnostic, as signals are typically observed only when the line integrated density is below 2.0-3.0 × 1019 m-2 in the central interferometer chord, depending on the plasma shape. The strike line moves as expected when Ip is ramped, indicating that current measurements are possible. Additionally, clear dynamics in the intensity of the strike line are often observed, which might be linked to changes in the edge profile structure. However, the signal-to-background ratio of the signals is hampered by stray light, and the image guide degradation is due to neutron irradiation. Finally, simulations have been carried out to investigate the sensitivity of the expected signals to plasma density and temperature. The results are in qualitative agreement with the experimental observations, suggesting that the diagnostic is almost insensitive to fluctuations in the temperature profile, while the signal level is highly determined by the density profile due to the beam attenuation.

14.
J Intellect Disabil Res ; 68(5): 477-490, 2024 May.
Article de Anglais | MEDLINE | ID: mdl-38263598

RÉSUMÉ

BACKGROUND: Stigma towards people with intellectual disability affects various aspects of their lives, including access to employment, housing, health and social care services. Furthermore, this stigma reduces their social opportunities and is even reflected in laws that diminish their autonomy. Due to the practical significance of this issue, the aim of this research is to explore for the first time the social stigma associated with intellectual disability in a representative sample of the Spanish population. METHOD: A cross-sectional quantitative descriptive study was conducted, involving a representative sample of the population (N = 2746). The study includes descriptive analyses and hierarchical regressions to examine various dimensions of stigma, such as attitudes, attributions, and intentions of social distance. RESULTS: Medium levels of stigma are found regarding attitudes and attributions towards people with intellectual disability, while levels are medium-low concerning the intention of social distance. The most reliable indicators of stigma across its various dimensions encompass attitudes, attributions, and the intention of social distance. Factors that contribute to lower stigma include knowing someone with an intellectual disability, being willing to discuss intellectual disability with an acquaintance who has it and having a progressive political ideology. People with intellectual disability show more negative attributions towards themselves. Living with a person with an intellectual disability is another predictor of more stigmatising attitudes, but less intention of social distance. Results are mixed regarding age, gender, and educational level. CONCLUSION: Combating the stigmatisation of people with intellectual disabilities must include comprehensive actions to address attitudes, attributions and behavioural intentions. Public policies, such as national campaigns and programmes, should include contact with and open conversations about intellectual disability, and sensitivity to sociodemographic variables.


Sujet(s)
Déficience intellectuelle , Stigmate social , Humains , Études transversales , Espagne , Stéréotypes
15.
Neurologia (Engl Ed) ; 39(1): 63-83, 2024.
Article de Anglais | MEDLINE | ID: mdl-38065433

RÉSUMÉ

INTRODUCTION: Gamification consists of the use of games in non-playful contexts. It is widely employed in the motor rehabilitation of neurological diseases, but mainly in adult patients. The objective of this review was to describe the use of gamification in the rehabilitation of children and adolescents with neuromotor impairment. METHODS: We performed a systematic review of clinical trials published to date on the MEDLINE (PubMed), Scielo, SCOPUS, Dialnet, CINAHL, and PEDro databases, following the PRISMA protocol. The methodological quality of the studies identified was assessed using the PEDro scale. RESULTS: From a total of 469 studies, 11 clinical trials met the inclusion criteria. We analysed the gamification systems used as part of the rehabilitation treatment of different neuromotor conditions in children and adolescents. Cerebral palsy was the most frequently studied condition (6 studies), followed by developmental coordination disorder (3), neurological gait disorders (1), and neurological impairment of balance and coordination (1). CONCLUSION: The use of gamification in rehabilitation is helpful in the conventional treatment of neuromotor disorders in children and adolescents, with increased motivation and therapeutic adherence being the benefits with the greatest consensus among authors. While strength, balance, functional status, and coordination also appear to improve, future research should aim to determine an optimal dosage.


Sujet(s)
Paralysie cérébrale , Troubles de la motricité , Rééducation neurologique , Enfant , Humains , Adolescent , Ludification , Démarche
16.
Environ Res ; 242: 117730, 2024 Feb 01.
Article de Anglais | MEDLINE | ID: mdl-38000631

RÉSUMÉ

Coronavirus outbreaks are likely to occur in crowded and congregate indoor spaces, and their effects are most severe in vulnerable long term care facilities (LTCFs) residents. Public health officers benefit from tools that allow them to control COVID-19 outbreaks in vulnerable settings such as LTCFs, but which could be translated in the future to control other known and future virus outbreaks. This study aims to develop and test a methodology based on detection of SARS-CoV-2 in aerosol samples collected with personal pumps that could be easily implemented by public health officers. The proposed methodology was used to investigate the levels of SARS-CoV-2 in aerosol in indoor settings, mainly focusing on LTCFs, suffering COVID-19 outbreaks, or in the presence of known COVID-19 cases, and targeting the initial days after diagnosis. Aerosol samples (N = 18) were collected between November 2020 and March 2022 in Castelló (Spain) from LTCFs, merchant ships and a private home with recently infected COVID-19 cases. Sampling was performed for 24-h, onto 47 mm polytetrafluoroethylene (PTFE) and quartz filters, connected to personal pumps at 2 and 4 L/min respectively. RNA from filters was extracted and SARS-CoV-2 was determined by detection of regions N1 and N2 of the nucleocapsid gene alongside the E gene using RT-PCR technique. SARS-CoV-2 genetic material was detected in 87.5% samples. Concentrations ranged ND-19,525 gc/m3 (gene E). No genetic traces were detected in rooms from contacts that were isolated as a preventative measure. Very high levels were also measured at locations with poor ventilation. Aerosol measurement conducted with the proposed methodology provided useful information to public health officers and contributed to manage and control 12 different COVID-19 outbreaks. SARS-CoV-2 was detected in aerosol samples collected during outbreaks in congregate spaces. Indoor aerosol sampling is a useful tool in the early detection and management of COVID-19 outbreaks and supports epidemiological investigations.


Sujet(s)
COVID-19 , SARS-CoV-2 , Humains , COVID-19/épidémiologie , Soins de longue durée , Gouttelettes et aérosols respiratoires , Épidémies de maladies
17.
Talanta ; 270: 125544, 2024 Apr 01.
Article de Anglais | MEDLINE | ID: mdl-38104425

RÉSUMÉ

This work presents a multisyringe flow injection analysis (MSFIA) system for the automatic extraction and determination of tetracyclines in wastewater samples. The sample was adjusted with Na2EDTA buffer before solid-phase extraction with an Oasis HLB column used for the analyte preconcentration. The europium (Eu3+)-based and citrate-mediated method (using Tris-HCl buffer) was selected for the fluorimetric analysis (λexc/em = 400/612 nm). For fluorescence detection, a low-cost system consisting of an USB 2000 CCD detector and a 3D-printed support that holds a LED light source was used. Under optimized conditions, the proposed method provided low limits of detection (9.4 µg L-1) and quantification (31 µg L-1), and good values for intra-day (<4 %) and inter-day precisions (<6 %). Recoveries of spiked TCs in wastewater samples ranged from 87 to 106 %. The results of this work were in good agreement with the measurements obtained by liquid chromatography coupled to a fluorescence detector.


Sujet(s)
Tétracyclines , Eaux usées , Tétracyclines/analyse , Antibactériens , Chromatographie en phase liquide , Extraction en phase solide/méthodes , Chromatographie en phase liquide à haute performance/méthodes
18.
Chem Mater ; 35(22): 9591-9602, 2023 Nov 28.
Article de Anglais | MEDLINE | ID: mdl-38047182

RÉSUMÉ

Materials based on spin crossover (SCO) molecules have centered the attention in molecular magnetism for more than 40 years as they provide unique examples of multifunctional and stimuli-responsive materials, which can be then integrated into electronic devices to exploit their molecular bistability. This process often requires the preparation of thermally stable SCO molecules that can sublime and remain intact in contact with surfaces. However, the number of robust sublimable SCO molecules is still very scarce. Here, we report a novel example of this kind. It is based on a neutral iron(II) coordination complex formulated as [Fe(neoim)2], where neoimH is the ionogenic ligand 2-(1H-imidazol-2-yl)-9-methyl-1,10-phenanthroline. In the first part, a comprehensive study, which covers the synthesis and magnetostructural characterization of the [Fe(neoim)2] complex as a bulk microcrystalline material, is reported. Then, in the second part, we investigate the suitability of this material to form thin films through high-vacuum sublimation. Finally, the retainment of all present SCO capabilities in the bulk when the material is processed is thoroughly studied by means of X-ray absorption spectroscopy. In particular, a very efficient and fast light-induced spin transition (LIESST effect) has been observed, even for ultrathin films of 15 nm.

20.
Purinergic Signal ; 2023 Nov 15.
Article de Anglais | MEDLINE | ID: mdl-37966629

RÉSUMÉ

Accumulating evidence supports the idea that cancer stem cells (CSCs) are those with the capacity to initiate tumors, generate phenotypical diversity, sustain growth, confer drug resistance, and orchestrate the spread of tumor cells. It is still controversial whether CSCs originate from normal stem cells residing in the tissue or cancer cells from the tumor bulk that have dedifferentiated to acquire stem-like characteristics. Although CSCs have been pointed out as key drivers in cancer, knowledge regarding their physiology is still blurry; thus, research focusing on CSCs is essential to designing novel and more effective therapeutics. The purinergic system has emerged as an important autocrine-paracrine messenger system with a prominent role at multiple levels of the tumor microenvironment, where it regulates cellular aspects of the tumors themselves and the stromal and immune systems. Recent findings have shown that purinergic signaling also participates in regulating the CSC phenotype. Here, we discuss updated information regarding CSCs in the purinergic system and present evidence supporting the idea that elements of the purinergic system expressed by this subpopulation of the tumor represent attractive pharmacological targets for proposing innovative anti-cancer therapies.

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