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1.
Artigo em Inglês | MEDLINE | ID: mdl-38569884

RESUMO

OBJECTIVES: Extended septal myectomy and alcohol septal ablation are two invasive treatments for hypertrophic obstructive cardiomyopathy. We aim to compare which of these techniques achieves a higher reduction in gradients, improvement in NYHA class and reduction in medical treatment. METHODS: This is a single-center observational and retrospective analysis. This is a single-center observational and retrospective analysis. We have used multivariable regression analyses to assess the association of ablation/myectomy with different outcomes. Odds ratio or coefficient along with the 95% confidence interval were estimated according to the group, and adjusting for the corresponding pre procedural variables and Euroscore II. RESULTS: 78 patients underwent septal myectomy and 25 patients underwent alcohol septal ablation. Basal and Valsalva gradients after myectomy were reduced in a higher degree in comparison to ablation, 21.0 mmHg (p < 0.001, 95%CI -30.7; -11.3), and 34.3 mmHg (p < 0.001, -49.1; -19.5) respectively. Those patients who received myectomy had lower probability of presenting moderate mitral regurgitation (OR = 0.18, p = 0.054). Patients after septal myectomy were more likely to be in NYHA I (80.4%); whilst patients after ablation were more likely to be NYHA III (48%). Both groups continued with betablocker therapy, but disopyramide could be discontinued after myectomy in more cases (20% - 36% vs. 59% - 1.3%; p < 0.001) and there is a tendency in the discontinuation of calcium channel blockers (48% - 16% vs. 15.4-3.8%; p = 0.054). CONCLUSIONS: After adjustment by pre procedural gradients and Euroscore II, myectomy achieves greater reduction in left ventricular outflow tract gradients compared to septal ablation.

3.
Biology (Basel) ; 13(2)2024 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-38392285

RESUMO

Atherosclerosis is an inflammatory disease that, in its more developed stages, can lead to the calcification of fatty plaques on the walls of arteries, resulting in the appearance of new bone elements. It is a condition that has been studied and documented little in the context of paleopathology, especially in the framework of forensic anthropology. This article analyzed the skeletal remains of 71 individuals (35 females and 36 males) from the Luís Lopes Identified Collection of the National Museum of Natural History and Science in Lisbon, 31 of whom had an autopsy report. An attempt was made to ascertain whether these bone elements resulting from atherosclerotic calcification would resist cadaveric decomposition and whether they would be recoverable several years after burial, and a survey was carried out of their distribution according to sex and age, as well as their association with other pathologies, such as osteoporosis and cardiac and renal pathologies. An imaging analysis of an atherosclerotic plaque was also carried out to complement the macroscopic analysis and present other methods of identifying plaques. It was concluded that each atherosclerotic calcification has a unique profile, which can be useful for identification, especially in cases where the individual shows a severe condition. In terms of identification potential, the analysis of calcified atherosclerotic plaques can be useful, as they can corroborate or reject an identification. However, it always requires the existence of ante-mortem imaging exams and must always be used in addition to other identification methods. Regardless of the identification, these plaques are bone elements resulting from a pathology and should, therefore, be known and recognized by the scientific community.

4.
Metabolites ; 14(2)2024 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-38392995

RESUMO

Solid tumors frequently present a heterogeneous tumor microenvironment. Because tumors have the potential to proliferate quickly, the consequence is a reduction in the nutrients, a reduction in the pH (<6.8), and a hypoxic environment. Although it is often assumed that tumor clones show a similar growth rate with little variations in nutrient consumption, the present study shows how growth-specific rate (µ), the specific rates of glucose, lactate, and glutamine consumption (qS), and the specific rates of lactate and glutamate production (qP) of 2D-cultured lung tumor cells are affected by changes in their environment. We determined in lung tumor cells (A427, A549, Calu-1, and SKMES-1) the above mentioned kinetic parameters during the exponential phase under different culture conditions, varying the predominant carbon source, pH, and oxygen tension. MCF-7 cells, a breast tumor cell line that can consume lactate, and non-transformed fibroblast cells (MRC-5) were included as controls. We also analyzed how cell-cycle progression and the amino acid transporter CD98 expression were affected. Our results show that: (1) In glucose presence, µ increased, but qS Glucose and qP Lactate decreased when tumor cells were cultured under acidosis as opposed to neutral conditions; (2) most lung cancer cell lines consumed lactate under normoxia or hypoxia; (3) although qS Glutamine diminished under hypoxia or acidosis, it slightly increased in lactate presence, a finding that was associated with CD98 upregulation; and (4) under acidosis, G0/G1 arrest was induced in A427 cancer cells, although this phenomenon was significantly increased when glucose was changed by lactate as the predominant carbon-source. Hence, our results provide an understanding of metabolic responses that tumor cells develop to survive under stressful conditions, providing clues for developing promising opportunities to improve traditional cancer therapies.

5.
Curr Oncol ; 31(2): 660-671, 2024 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-38392042

RESUMO

Multidisciplinary strategies have transformed the management of advanced ovarian cancer. We aimed to evaluate the effectiveness of paclitaxel in hyperthermic intraperitoneal chemotherapy (HIPEC) following surgical cytoreduction for ovarian peritoneal metastases in a randomized phase III trial conducted between August 2012 and December 2019. Seventy-six patients were randomized to either the HIPEC or no HIPEC group. Although median values for the primary endpoints (recurrence-free survival (RFS) and overall survival (OS)) revealed superior outcomes for the HIPEC (RFS: 23 months, OS: 48 months) over the control group (RFS: 19 months, OS: 46 months), these differences were not statistically significant (p = 0.22 and p = 0.579). Notably, the HIPEC group demonstrated significantly higher 5-year OS and 3-year RFS rates (47.2% and 47.5%) compared to patients without HIPEC (34.5% and 21.3%). Stratification according to Peritoneal Surface Disease Severity Score (PSDSS) showed improved OS and RFS for patients with lower PSDSS (I-II) in the HIPEC-treated group (p = 0.033 and p = 0.042, respectively). The Clavien-Dindo classification of adverse event grades revealed no significant differences between HIPEC and controls (p = 0.482). While overall results were not statistically significant, our long-term follow-up emphasized the potential benefit of HIPEC-associated cytoreduction with paclitaxel, particularly in selected ovarian cancer patients with lower PSDSS indices.


Assuntos
Hipertermia Induzida , Neoplasias Ovarianas , Neoplasias Peritoneais , Feminino , Humanos , Paclitaxel/uso terapêutico , Quimioterapia Intraperitoneal Hipertérmica , Terapia Combinada , Procedimentos Cirúrgicos de Citorredução , Neoplasias Peritoneais/tratamento farmacológico , Neoplasias Peritoneais/cirurgia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Seguimentos , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias Ovarianas/cirurgia
6.
Med Sci Law ; 64(1): 15-22, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37170562

RESUMO

The estimation of biological sex is a critical step in the assessment of the biological profile of an anonymous skeletonized individual. In certain recovery circumstances, the most dimorphic skeletal areas, such as the pelvis, are absent or fragmented; in that case, other bones of the skeleton, including the clavicle and scapula, can be used to predict sex. The purpose of this research is to generate new models for the estimation of sex with clavicular and scapular measurements using a study-sample of 129 individuals with clavicle (65 males and 64 females) and 112 individuals with scapula (50 males and 62 females) from the Lisbon Identified Skeletal Collection (Portugal). A decision tree classifier (C4.5) and logistic regression (LR) were employed to create univariable and multivariable sex prediction models. Accuracy under cross-validation of the classification models is high (up to 93.8%), with minimal bias (<5%), particularly in the multivariable models. The proposed LR models facilitate the probabilistic estimation of biological sex, accounting for the significant overlap in the expression of sexual dimorphism.


Assuntos
Clavícula , Determinação do Sexo pelo Esqueleto , Masculino , Feminino , Humanos , Portugal , Clavícula/anatomia & histologia , Antropologia Forense , Etnicidade , Escápula/anatomia & histologia , Análise Discriminante
7.
Microb Drug Resist ; 30(3): 109-117, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38133499

RESUMO

Staphylococcus aureus bacteremia (SAB) is one of the most common serious bacterial infections worldwide. In this study, we demonstrated changes in SAB epidemiology in an Argentinean University Hospital during an 8-year period (2009-2016). A total of 326 S. aureus clinical isolates were recovered in three periods: P1: 2009-2010, P2: 2012-2014, and P3: 2015-2016. Among these, 127 were methicillin-resistant S. aureus (MRSA) and were characterized by phenotypic and molecular methods. We hereby report a significant decline in multiple drug resistance among MRSA isolates associated with an increase in SCCmec IV between the three periods. A diversity of MRSA-IV clones (mainly ST30-MRSA-IV, ST5-MRSA-IV, and ST8-MRSA-IV) replaced between 2009 and 2016 the previous prevalent MRSA clone causing bloodstream infections at this hospital (ST5-MRSA-I). MRSA population structure continued to diversify between P2 and P3. Notably, ST8-MRSA-IV-t008 related to USA300 was first detected during P2, and ST8-MRSA-IV together with ST30-MRSA-IV related to the Southwest Pacific clone were the more prevalent MRSA genotypes circulating during P3.


Assuntos
Bacteriemia , Staphylococcus aureus Resistente à Meticilina , Infecções Estafilocócicas , Humanos , Staphylococcus aureus/genética , Staphylococcus aureus Resistente à Meticilina/genética , Argentina/epidemiologia , Hemocultura , Antibacterianos/farmacologia , Testes de Sensibilidade Microbiana , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/microbiologia , Hospitais Universitários , Bacteriemia/tratamento farmacológico , Bacteriemia/epidemiologia
8.
JACC Case Rep ; 27: 102075, 2023 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-38094725

RESUMO

Pregnant women with mitral stenosis have a high cardiovascular risk, and their outcomes vary greatly. The management of these patients should be individualized and carried out by a multidisciplinary team. This case series presents 3 cases of pregnant women with severe mitral stenosis, describing their progression and therapeutic strategies.

9.
PLoS Genet ; 19(12): e1011109, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38134228

RESUMO

The Muscleblind-like (MBNL) family is a highly conserved set of RNA-binding proteins (RBPs) that regulate RNA metabolism during the differentiation of various animal tissues. Functional insufficiency of MBNL affects muscle and central nervous system development, and contributes to the myotonic dystrophies (DM), a set of incurable multisystemic disorders. Studies on the regulation of MBNL genes are essential to provide insight into the gene regulatory networks controlled by MBNL proteins and to understand how dysregulation within these networks causes disease. In this study, we demonstrate the evolutionary conservation of an autoregulatory mechanism that governs the function of MBNL proteins by generating two distinct protein isoform types through alternative splicing. Our aim was to further our understanding of the regulatory principles that underlie this conserved feedback loop in a whole-organismal context, and to address the biological significance of the respective isoforms. Using an alternative splicing reporter, our studies show that, during development of the Caenorhabditis elegans central nervous system, the orthologous mbl-1 gene shifts production from long protein isoforms that localize to the nucleus to short isoforms that also localize to the cytoplasm. Using isoform-specific CRISPR/Cas9-generated strains, we showed that expression of short MBL-1 protein isoforms is required for healthy neuromuscular function and neurodevelopment, while expression of long MBL-1 protein isoforms is dispensable, emphasizing a key role for cytoplasmic functionalities of the MBL-1 protein. Furthermore, RNA-seq and lifespan analyses indicated that short MBL-1 isoforms are crucial regulators of miRNA expression and, in consequence, required for normal lifespan. In conclusion, this study provides support for the disruption of cytoplasmic RNA metabolism as a contributor in myotonic dystrophy and paves the way for further exploration of miRNA regulation through MBNL proteins during development and in disease models.


Assuntos
MicroRNAs , Distrofia Miotônica , Animais , Processamento Alternativo/genética , Caenorhabditis elegans/genética , MicroRNAs/genética , Distrofia Miotônica/genética , Isoformas de Proteínas/genética
10.
PLoS One ; 18(10): e0292949, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37831681

RESUMO

Aging is characterized by a gradual decline in physiological integrity, which impairs functionality and increases susceptibility to mortality. Dietary restriction, mimicking nutrient scarcity without causing malnutrition, is an intervention known to decelerate the aging process. While various hypotheses have been proposed to elucidate how dietary restriction influences aging, the underlying mechanisms remain incompletely understood. This project aimed to investigate the role of the primary regulator of the general amino acid control (GAAC) pathway, the transcription factor Gcn4, in the aging process of S. cerevisiae cells. Under conditions of amino acid deprivation, which activate Gcn4, the deletion of GCN4 led to a diverse array of physiological changes in the cells. Notably, the absence of Gcn4 resulted in heightened mitochondrial activity, likely contributing to the observed increase in reactive oxygen species (ROS) accumulation. Furthermore, these mutant gcn4Δ cells exhibited reduced ethanol production despite maintaining similar glucose consumption rates, suggesting a pivotal role for Gcn4 in regulating the Crabtree effect. Additionally, there was a marked reduction in trehalose, the storage carbohydrate, within the mutant cells compared to the wild-type strain. The intracellular content of free amino acids also exhibited disparities between the wild-type and GCN4-deficient strains. Taken together, our findings indicate that the absence of GCN4 disrupts cellular homeostasis, triggering significant alterations in interconnected intracellular metabolic pathways. These disruptions have far-reaching metabolic consequences that ultimately culminate in a shortened lifespan.


Assuntos
Proteínas de Saccharomyces cerevisiae , Saccharomyces cerevisiae , Saccharomyces cerevisiae/metabolismo , Proteínas de Saccharomyces cerevisiae/genética , Proteínas de Saccharomyces cerevisiae/metabolismo , Longevidade , Biossíntese de Proteínas , Aminoácidos/metabolismo , Regulação Fúngica da Expressão Gênica , Proteínas Fúngicas/genética
11.
An. pediatr. (2003. Ed. impr.) ; 99(2): 82-93, ago. 2023. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-223953

RESUMO

Introducción: La satisfacción de los padres de niños en Unidades de Cuidados Intensivos Neonatales (UCIN) apenas se evalúa por la carencia de herramientas específicas. El EMpowerment of PArents in THe Intensive Care Neonatology (EMPATHIC-N) es un cuestionario de satisfacción que evalúa los cuidados centrados en el desarrollo y la familia, validado en varios países pero no en España. Objetivos: Realizar la adaptación y validación del EMPATHIC-N para la evaluación de la satisfacción de los padres de niños ingresados en UCIN. Material y métodos: Primero, se realizó una traducción-retrotraducción y adaptación transcultural siguiendo un procedimiento estandarizado con un comité de expertos, mediante el método Delphi. Posteriormente, se realizó un estudio piloto con ocho padres y un estudio transversal en la unidad neonatal de un hospital terciario para analizar la fiabilidad y la validez convergente del cuestionario. Resultados: La versión española del EMPATHIC-N demostró su comprensibilidad, viabilidad, aplicabilidad y utilidad en el ámbito sanitario infantil, evaluado por 19 profesionales y 60 padres. Su validez de contenido global resultó excelente (0,93). La fiabilidad y validez convergente del EMPHATIC-N se analizaron en 65 encuestas. El α de Cronbach por dominios se situó por encima de 0,7, indicando una alta consistencia interna. La validez fue medida correlacionando los cinco dominios con los cuatro ítems de satisfacción general, demostrando una correlación adecuada (rs: 0,4-0,76; p < 0,01). Conclusiones: La versión española del cuestionario EMPATHIC-N es un instrumento comprensible, viable, aplicable, útil, válido y fiable para medir la satisfacción de los padres en las unidades neonatales. (AU)


Introduction: Parental satisfaction is rarely measured in the neonatal intensive care unit due to a lack of specific assessment tools. The EMpowerment of PArents in THe Intensive Care-Neonatology (EMPATHIC-N) questionnaire is an instrument to assess satisfaction in relation to family-centred care that has been validated in several countries, but not Spain. Objectives: To perform the translation and cultural adaptation of the EMPATHIC-N to Spanish followed by its validation for the purpose of assessing satisfaction in parents with children admitted to the neonatal intensive care unit. Material and methods: The questionnaire first underwent forward and backward translation and transcultural adaptation by a panel of experts through a standardized process based on the Delphi method, followed by a pilot study in 8 parents and then a cross-sectional study in the neonatal intensive care unit of a tertiary care hospital to assess the reliability and converging validity of the Spanish version. Results: The study proved the comprehensibility, validity, feasibility, applicability and usefulness of the Spanish version of the EMPATHIC-N in the field of paediatric health after being evaluated by 19 professionals and 60 parents. The content validity was found to be excellent (0.93). The reliability and convergent validity of the Spanish version of the EMPHATIC-N was analysed in a sample of 65 completed questionnaires. The Cronbach α for each domain was greater than 0.7, indicating a high internal consistency. We assessed validity by analysing the correlation of the 5 domains with the with the 4 general satisfaction items. The validity was found to be adequate (rs, 0.4-0.76; P < .01). Conclusions: The Spanish version of the EMPATHIC-N questionnaire is a comprehensible, useful, valid and reliable instrument to measure satisfaction in the parents of children admitted to neonatal care units. (AU)


Assuntos
Humanos , Terapia Intensiva Neonatal , Família , Satisfação do Paciente , Espanha , Neonatologia , Estudos Transversais , Inquéritos e Questionários
12.
Ind Eng Chem Res ; 62(26): 10252-10265, 2023 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-37425135

RESUMO

To rank the performance of materials for a given carbon capture process, we rely on pure component isotherms from which we predict the mixture isotherms. For screening a large number of materials, we also increasingly rely on isotherms predicted from molecular simulations. In particular, for such screening studies, it is important that the procedures to generate the data are accurate, reliable, and robust. In this work, we develop an efficient and automated workflow for a meticulous sampling of pure component isotherms. The workflow was tested on a set of metal-organic frameworks (MOFs) and proved to be reliable given different guest molecules. We show that the coupling of our workflow with the Clausius-Clapeyron relation saves CPU time, yet enables us to accurately predict pure component isotherms at the temperatures of interest, starting from a reference isotherm at a given temperature. We also show that one can accurately predict the CO2 and N2 mixture isotherms using ideal adsorbed solution theory (IAST). In particular, we show that IAST is a more reliable numerical tool to predict binary adsorption uptakes for a range of pressures, temperatures, and compositions, as it does not rely on the fitting of experimental data, which typically needs to be done with analytical models such as dual-site Langmuir (DSL). This makes IAST a more suitable and general technique to bridge the gap between adsorption (raw) data and process modeling. To demonstrate this point, we show that the ranking of materials, for a standard three-step temperature swing adsorption (TSA) process, can be significantly different depending on the thermodynamic method used to predict binary adsorption data. We show that, for the design of processes that capture CO2 from low concentration (0.4%) streams, the commonly used methodology to predict mixture isotherms incorrectly assigns up to 33% of the materials as top-performing.

13.
An Pediatr (Engl Ed) ; 99(2): 82-93, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37419707

RESUMO

INTRODUCTION: Parental satisfaction is rarely measured in the neonatal intensive care unit due to a lack of specific assessment tools. The Empowerment of Parents in The Intensive Care-Neonatology (EMPATHIC-N) questionnaire is an instrument to assess satisfaction in relation to family-centred care that has been validated in several countries, but not Spain. OBJECTIVES: To perform the translation and cultural adaptation of the EMPATHIC-N to Spanish followed by its validation for the purpose of assessing satisfaction in parents with children admitted to the neonatal intensive care unit. MATERIAL AND METHODS: The questionnaire first underwent forward and backward translation and transcultural adaptation by a panel of experts through a standardized process based on the Delphi method, followed by a pilot study in 8 parents and then a cross-sectional study in the neonatal intensive care unit of a tertiary care hospital to assess the reliability and converging validity of the Spanish version. RESULTS: The study proved the comprehensibility, validity, feasibility, applicability and usefulness of the Spanish version of the EMPATHIC-N in the field of paediatric health after being evaluated by 19 professionals and 60 parents. The content validity was found to be excellent (0.93). The reliability and convergent validity of the Spanish version of the EMPHATIC-N was analysed in a sample of 65 completed questionnaires. The Cronbach α for each domain was greater than 0.7, indicating a high internal consistency. We assessed validity by analysing the correlation of the 5 domains with the with the 4 general satisfaction items. The validity was found to be adequate (rs, 0.4-0.76; P < .01). CONCLUSIONS: The Spanish version of the EMPATHIC-N questionnaire is a comprehensible, useful, valid and reliable instrument to measure satisfaction in the parents of children admitted to neonatal care units.


Assuntos
Neonatologia , Recém-Nascido , Criança , Humanos , Reprodutibilidade dos Testes , Estudos Transversais , Projetos Piloto , Unidades de Terapia Intensiva Pediátrica , Poder Psicológico , Psicometria , Inquéritos e Questionários , Cuidados Críticos , Pais
14.
Int J Mycobacteriol ; 12(2): 192-195, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37338483

RESUMO

Tuberculosis (TB) is one of the most important public health issues in developing countries. The World Health Organization estimates that approximately 20%-40% of the world's population is infected. Pulmonary forms account for the majority of cases; however, it can manifest as extrapulmonary disease in 8.4%-13.7% of cases. Of these extrapulmonary forms of TB, only 1%-2% may have skin manifestations. Cutaneous tuberculosis (CTB) is relatively uncommon and is not a well-defined disease, which complicates diagnosis. We present two patients with Pott's disease that manifested as CTB, one with tuberculous gumma and the other with scrofuloderma. Both patients with non-HIV immunosuppression. The diagnosis of CTB was made by detecting Mycobacterium tuberculosis in skin samples by real-time polymerase chain reaction (Xpert MTB/RIF test) and Ziehl-Neelsen staining. The histologic findings described in these two forms of TB may vary or be absent in immunosuppressed patients, making diagnosis difficult.


Assuntos
Mycobacterium tuberculosis , Tuberculose Cutânea , Tuberculose Pulmonar , Tuberculose da Coluna Vertebral , Humanos , Tuberculose Cutânea/diagnóstico , Tuberculose Cutânea/patologia , Rifampina , Tuberculose Pulmonar/microbiologia , Sensibilidade e Especificidade , Mycobacterium tuberculosis/genética , Terapia de Imunossupressão
15.
Cancer Med ; 12(12): 13834-13845, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37165927

RESUMO

BACKGROUND: Breast cancer diagnosis and treatment increase the potential psychological impact on breast cancer survivors (BCS). The objective of this study was to assess the effects of an interdisciplinary intervention during follow-up in BCS and identify variables related to improvements in HRQoL. MATERIALS AND METHODS: In a non-randomised quasi-experimental design performed on an outpatient basis in a hospital gynaecology and oncology unit, 60 BCS were assigned to an interdisciplinary experimental group (EG) or a usual care group (CG). The EG underwent 12 sessions of an interdisciplinary program which included Mindfulness and physiotherapy, for 120 min per day, once a week for 6 weeks. At baseline, at 6 weeks and at 3 months after the intervention, participants of EG and CG completed an assessment of HRQoL (EuroQol and EORTC-QLQ-C30) and symptomatology of anxiety and depression. Additionally, EG completed an assessment of satisfaction with the treatment. For data analysis, we used descriptive statistics, Wilcoxon test, Kruskal-Wallis test, Chi-square and Fisher tests and generalised linear models. RESULTS: After 6 weeks, statistically significant differences were apparent in global and cancer-related health symptoms such as fatigue and pain in the EORTC QLQ-C30 and in anxiety and depression, among the EG (n = 30) compared with the CG (n = 30). Patients receiving the intervention reported a high degree of satisfaction with the treatment. Three months after the intervention, patients in the EG continued to show statistically significant improvements compared with the CG. In addition, allocation to the EG was identified as a variable related to improvement of HRQoL (EORTC QLQ-C30) in the multivariable model. CONCLUSIONS: The results of our study suggest that a 6-week interdisciplinary intervention may improve HRQoL and symptomatology of anxiety and depression in BCS patients at 3 months. The study presents data that the intervention for BCS appears promising and warrants further study in a randomised controlled trial.


Assuntos
Neoplasias da Mama , Sobreviventes de Câncer , Atenção Plena , Feminino , Humanos , Neoplasias da Mama/terapia , Modalidades de Fisioterapia , Qualidade de Vida/psicologia
16.
RSC Sustain ; 1(3): 494-503, 2023 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-37215582

RESUMO

Metal-Organic Framework (MOF)-derived TiO2, synthesised through the calcination of MIL-125-NH2, is investigated for its potential as a CO2 photoreduction catalyst. The effect of the reaction parameters: irradiance, temperature and partial pressure of water was investigated. Using a two-level design of experiments, we were able to evaluate the influence of each parameter and their potential interactions on the reaction products, specifically the production of CO and CH4. It was found that, for the explored range, the only statistically significant parameter is temperature, with an increase in temperature being correlated to enhanced production of both CO and CH4. Over the range of experimental settings explored, the MOF-derived TiO2 displays high selectivity towards CO (98%), with only a small amount of CH4 (2%) being produced. This is notable when compared to other state-of-the-art TiO2 based CO2 photoreduction catalysts, which often showcase lower selectivity. The MOF-derived TiO2 was found to have a peak production rate of 8.9 × 10-4 µmol cm-2 h-1 (2.6 µmol g-1 h-1) and 2.6 × 10-5 µmol cm-2 h-1 (0.10 µmol g-1 h-1) for CO and CH4, respectively. A comparison is made to commercial TiO2, P25 (Degussa), which was shown to have a similar activity towards CO production, 3.4 × 10-3 µmol cm-2 h-1 (5.9 µmol g-1 h-1), but a lower selectivity preference for CO (3 : 1 CH4 : CO) than the MOF-derived TiO2 material developed here. This paper showcases the potential for MIL-125-NH2 derived TiO2 to be further developed as a highly selective CO2 photoreduction catalyst for CO production.

17.
Int J Eat Disord ; 56(7): 1444-1448, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37039564

RESUMO

OBJECTIVE: Disgust is an established mechanism driving restrictive eating behavior. Avoidant/restrictive food intake disorder (ARFID) is a restrictive eating disorder diagnosis characterized by extremely selective eating with three hypothesized presentations. It has been suggested that disgust is significantly associated with ARFID; however, there is limited empirical research to support this hypothesis. This study explores relationships between food-specific disgust, ARFID symptoms, and ARFID presentations. METHOD: Undergraduate students (n = 443, Mage = 19.14 years [SD = 1.25], 50.1% female, 52.7% White) completed a validated measure of food-specific disgust and an established self-report screening tool for the likely presence of ARFID and hypothesized ARFID presentations. RESULTS: Sixty-nine (14.5%) participants screened positively for the likely presence of ARFID. Food disgust did not differ between those who did and did not screen positively for ARFID (p > .05). Within the subsample of those screening positive for ARFID, disgust was not related to any of the three hypothesized presentations of ARFID (all p > .05). DISCUSSION: Our results did not show a significant association between disgust and positive ARFID screen or any of the hypothesized ARFID presentations. Importantly, these negative findings were obtained using validated screening tools for ARFID. Future research should seek to replicate these findings in clinical samples to further inform treatment. PUBLIC SIGNIFICANCE: Avoidant/restrictive food intake disorder (ARFID) is associated with significant medical and psychosocial complications, but the mechanism involved in its development and maintenance remain poorly understood. Findings from this study of college students screening positively for ARFID suggests that food disgust in not a key driver of ARFID symptoms. Exposure-based approaches, which are generally not thought to be effective in targeting disgust, may thus be appropriate in the treatment of ARFID.


Assuntos
Transtorno da Evitação ou Restrição da Ingestão de Alimentos , Asco , Transtornos da Alimentação e da Ingestão de Alimentos , Humanos , Feminino , Adulto Jovem , Adulto , Masculino , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Autorrelato , Ingestão de Alimentos , Estudos Retrospectivos
18.
Eat Behav ; 49: 101733, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37121131

RESUMO

BACKGROUND: Eating disorders are highly stigmatized, but stigma against binge eating disorder (BED) specifically is relatively understudied, especially in men. We compared perceptions of a male target with BED to one with alcohol use disorder (AUD), which shares the key characteristic of subjective loss of control over consumption. We also investigated how participants' eating and alcohol use behaviors and attitudes towards psychotherapy influence perceptions of these disorders. METHODS: Participants (n = 402) viewed vignettes describing a male target engaged in excess alcohol use or binge eating and rated the target on various attributes and as being responsible for or in control of their behavior and suffering from an addiction warranting treatment. Participants completed the Alcohol Use Disorders Identification Test, Binge Eating Scale, and questions about attitudes towards and experience with psychological treatment. RESULTS: The BED target was rated as significantly less "thin," more "overweight" and "obese", and higher on several positive attributes and traits traditionally associated with femininity; the AUD target was thought more likely to be suffering from an addiction and in need of psychological treatment (all p < .05), with no differences between targets in ratings of responsibility for or control over the problematic behavior. Ratings were unrelated to participants' attitudes towards or experience with psychological treatment and personal alcohol consumption or binge eating behaviors. CONCLUSIONS: BED in men appears less stigmatized than AUD but is implicitly associated with weight status and femininity, which may increase reluctance to seek treatment. Both AUD and BED were generally recognized as pathological and warranting intervention.


Assuntos
Alcoolismo , Transtorno da Compulsão Alimentar , Feminino , Masculino , Humanos , Transtorno da Compulsão Alimentar/psicologia , Feminilidade , Estereotipagem , Alcoolismo/complicações , Obesidade/psicologia
19.
JAMA Surg ; 158(7): 683-691, 2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-37099280

RESUMO

Importance: Peritoneal metastasis in patients with locally advanced colon cancer (T4 stage) is estimated to recur at a rate of approximately 25% at 3 years from surgical resection and is associated with poor prognosis. There is controversy regarding the clinical benefit of prophylactic hyperthermic intraperitoneal chemotherapy (HIPEC) in these patients. Objective: To assess the efficacy and safety of intraoperative HIPEC in patients with locally advanced colon cancer. Design, Setting, and Participants: This open-label, phase 3 randomized clinical trial was conducted in 17 Spanish centers from November 15, 2015, to March 9, 2021. Enrolled patients were aged 18 to 75 years with locally advanced primary colon cancer diagnosed preoperatively (cT4N02M0). Interventions: Patients were randomly assigned 1:1 to receive cytoreduction plus HIPEC with mitomycin C (30 mg/m2 over 60 minutes; investigational group) or cytoreduction alone (comparator group), both followed by systemic adjuvant chemotherapy. Randomization of the intention-to-treat population was done via a web-based system, with stratification by treatment center and sex. Main Outcomes and Measures: The primary outcome was 3-year locoregional control (LC) rate, defined as the proportion of patients without peritoneal disease recurrence analyzed by intention to treat. Secondary end points were disease-free survival, overall survival, morbidity, and rate of toxic effects. Results: A total of 184 patients were recruited and randomized (investigational group, n = 89; comparator group, n = 95). The mean (SD) age was 61.5 (9.2) years, and 111 (60.3%) were male. Median duration of follow-up was 36 months (IQR, 27-36 months). Demographic and clinical characteristics were similar between groups. The 3-year LC rate was higher in the investigational group (97.6%) than in the comparator group (87.6%) (log-rank P = .03; hazard ratio [HR], 0.21; 95% CI, 0.05-0.95). No differences were observed in disease-free survival (investigational, 81.2%; comparator, 78.0%; log-rank P = .22; HR, 0.71; 95% CI, 0.41-1.22) or overall survival (investigational, 91.7%; comparator, 92.9%; log-rank P = .68; HR, 0.79; 95% CI, 0.26-2.37). The definitive subgroup with pT4 disease showed a pronounced benefit in 3-year LC rate after investigational treatment (investigational: 98.3%; comparator: 82.1%; log-rank P = .003; HR, 0.09; 95% CI, 0.01-0.70). No differences in morbidity or toxic effects between groups were observed. Conclusions and Relevance: In this randomized clinical trial, the addition of HIPEC to complete surgical resection for locally advanced colon cancer improved the 3-year LC rate compared with surgery alone. This approach should be considered for patients with locally advanced colorectal cancer. Trial Registration: ClinicalTrials.gov Identifier: NCT02614534.


Assuntos
Neoplasias do Colo , Hipertermia Induzida , Humanos , Masculino , Feminino , Quimioterapia Intraperitoneal Hipertérmica , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Recidiva Local de Neoplasia/patologia , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/cirurgia , Quimioterapia Adjuvante
20.
Plants (Basel) ; 12(6)2023 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-36987062

RESUMO

In this study, the antifungal, biosurfactant and bioemulsifying activity of the lipopeptides produced by the marine bacterium Bacillus subtilis subsp. spizizenii MC6B-22 is presented. The kinetics showed that at 84 h, the highest yield of lipopeptides (556 mg/mL) with antifungal, biosurfactant, bioemulsifying and hemolytic activity was detected, finding a relationship with the sporulation of the bacteria. Based on the hemolytic activity, bio-guided purification methods were used to obtain the lipopeptide. By TLC, HPLC and MALDI-TOF, the mycosubtilin was identified as the main lipopeptide, and it was further confirmed by NRPS gene clusters prediction based on the strain's genome sequence, in addition to other genes related to antimicrobial activity. The lipopeptide showed a broad-spectrum activity against ten phytopathogens of tropical crops at a minimum inhibitory concentration of 400 to 25 µg/mL and with a fungicidal mode of action. In addition, it exhibited that biosurfactant and bioemulsifying activities remain stable over a wide range of salinity and pH and it can emulsify different hydrophobic substrates. These results demonstrate the potential of the MC6B-22 strain as a biocontrol agent for agriculture and its application in bioremediation and other biotechnological fields.

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