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1.
Malar J ; 23(1): 285, 2024 Sep 19.
Artículo en Inglés | MEDLINE | ID: mdl-39300444

RESUMEN

BACKGROUND: Severe malaria can cause respiratory symptoms, which may lead to malaria-acute lung injury (MA-ALI) due to inflammation and damage to the blood-gas barrier. Patients with severe malaria also often present thrombocytopenia, and the use of acetylsalicylic acid (ASA), a commonly used non-steroidal anti-inflammatory drug with immunomodulatory and antiplatelet effects, may pose a risk in regions where malaria is endemic. Thus, this study aimed to investigate the systemic impact of ASA and dihydroartemisinin (DHA) on ALI induced in mice by Plasmodium berghei NK65 (PbNK65). METHODS: C57BL/6 mice were randomly divided into control (C) and PbNK65 infected groups and were inoculated with uninfected or 104 infected erythrocytes, respectively. Then, the animals were treated with DHA (3 mg/kg) or vehicle (DMSO) at the 8-day post-infection (dpi) for 7 days and with ASA (100 mg/kg, single dose), and analyses were performed at 9 or 15 dpi. Lung mechanics were performed, and lungs were collected for oedema evaluation and histological analyses. RESULTS: PbNK65 infection led to lung oedema, as well as increased lung static elastance (Est, L), resistive (ΔP1, L) and viscoelastic (ΔP2, L) pressures, percentage of mononuclear cells, inflammatory infiltrate, hemorrhage, alveolar oedema, and alveolar thickening septum at 9 dpi. Mice that received DHA or DHA + ASA had an increase in Est, L, and CD36 expression on inflammatory monocytes and higher protein content on bronchoalveolar fluid (BALF). However, only the DHA-treated group presented a percentage of inflammatory monocytes similar to the control group and a decrease in ΔP1, L and ΔP2, L compared to Pb + DMSO. Also, combined treatment with DHA + ASA led to an impairment in diffuse alveolar damage score and lung function at 9 dpi. CONCLUSIONS: Therapy with ASA maintained lung morpho-functional impairment triggered by PbNK65 infection, leading to a large influx of inflammatory monocytes to the lung tissue. Based on its deleterious effects in experimental MA-ALI, ASA administration or its treatment maintenance might be carefully reconsidered and further investigated in human malaria cases.


Asunto(s)
Lesión Pulmonar Aguda , Antimaláricos , Artemisininas , Aspirina , Pulmón , Malaria , Ratones Endogámicos C57BL , Plasmodium berghei , Animales , Artemisininas/farmacología , Lesión Pulmonar Aguda/tratamiento farmacológico , Lesión Pulmonar Aguda/parasitología , Aspirina/farmacología , Aspirina/administración & dosificación , Malaria/tratamiento farmacológico , Malaria/complicaciones , Ratones , Antimaláricos/farmacología , Plasmodium berghei/efectos de los fármacos , Pulmón/patología , Pulmón/efectos de los fármacos , Quimioterapia Combinada , Modelos Animales de Enfermedad , Masculino , Pruebas de Función Respiratoria
2.
Nat Commun ; 15(1): 7815, 2024 Sep 06.
Artículo en Inglés | MEDLINE | ID: mdl-39242611

RESUMEN

Chemical Short-Range Order (CSRO) has attracted recent attention from many researchers, creating intense debates about its impact on material properties. The challenges lie in confirming and quantifying CSRO, as its detection proves exceptionally demanding, contributing to conflicting data in the literature regarding its true effects on mechanical properties. Our work uses high-precision calorimetric data to unambiguously prove the existence and, coupled with atomistic simulations, quantify the type of CSRO. This methodology allows us to propose a mechanism for its formation and destruction based on the heat evolution during thermal analysis and facilitates a precise identification of local ordering in CoCrNi alloys. Samples of CoCrNi (Co33Cr33Ni33) and CrNi2 (Cr33Ni66) alloys are fabricated in varying ordered states, extensively characterized via synchrotron X-ray diffraction, X-ray absorption spectroscopy, and transmission electron microscopy. Samples with considerably different ordered states are submitted to tensile tests with in-situ synchrotron X-ray diffraction. We demonstrate, despite inducing varied CSRO levels in CoCrNi, no significant alterations in overall mechanical behavior emerge. However, the CrNi2 alloy, which undergoes long-range ordering, experiences significant shifts in yield strength, ultimate tensile stress and ductility.

3.
Artículo en Portugués | LILACS-Express | LILACS | ID: biblio-1563436

RESUMEN

Os grupos em saúde nascem para fomentar práticas coletivas de saúde, tendo se expandido para a atenção básica, encontrando ressonância na promoção da saúde e da qualidade de vida. Baseados nas teorias de Pichon-Rivière e de Yalom e Leszcz, esses grupos são capazes de contribuir para mudanças significativas na qualidade de vida de seus usuários participantes. Este artigo tem como objetivo analisar as contribuições dos grupos operativos da atenção primária à saúde a partir da visão de seus usuários e compreender a operacionalização desses grupos. Trata-se de pesquisa descritiva e analítica de caráter qualitativo, realizada em quatro grupos operativos em saúde da atenção básica de um município do Rio Grande do Norte, no interior do semiárido nordeste brasileiro. Os dados foram coletados por questionário socioeconômico e grupos focais entre março e agosto de 2023, sendo utilizada estatística descritiva para os questionários e análise temática de conteúdo para os grupos focais. Os questionários revelaram um predomínio de participantes do sexo feminino, com faixa etária acima dos 60 anos e situação socioeconômica de baixa renda. A análise de conteúdo demonstrou a efetividade dos grupos em produzir vetores grupais e fatores terapêuticos, além de seu potencial, como campo para a educação popular em saúde, em fomentar as redes sociais, o apoio, o acolhimento e o bem-estar biopsicossocial. Os grupos em saúde são estratégias eficazes na promoção da saúde e na qualidade de vida. Entretanto, ressalta-se a necessidade de pesquisas que avaliem a eficácia global dos grupos nos processos de morbimortalidade.


Health care groups were created to promote collective health practices and were expanded into Primary Care, helping to promote health and quality of life. Based on the theories of Pichon-Rivière and Yalom and Lezscz, these groups can contribute to significant changes in the quality of life of their participating users. Thus, this article analyzes the contributions of Primary Health Care operating groups from users' perspective and understands their operationalization. A descriptive analytical qualitative research was conducted with four health operating groups in Primary Care from a municipality in Rio Grande do Norte, in the semi-arid northeastern Brazil. Data were collected by means of a socioeconomic questionnaire and focus groups between March and August 2023, and investigated using descriptive statistics (questionnaires) and thematic content analysis (focus groups). The questionnaires revealed a predominance of female participants over 60 years old and with low-income socioeconomic status. Content analysis showed the groups' effectiveness in producing group vectors and therapeutic factors, as well as their potential as a field for popular health education in fostering social networks, support, user embracement, and biopsychosocial well-being. Health groups are effective strategies for promoting health and quality of life, future research should evaluate their global effectiveness in morbidity and mortality.


Los grupos de salud se crearon para promover prácticas de salud colectiva y se expandieron a la atención primaria, repercutiendo en la promoción de la salud y la calidad de vida. Basados en las teorías de Pichon-Rivière y Yalom y Lezscz, los grupos son capaces de contribuir a cambios significativos en la calidad de vida de sus usuarios participantes. Este artículo tuvo por objetivo analizar las contribuciones de los grupos operativos de atención primaria de la salud desde la perspectiva de sus usuarios, así como comprender la operacionalización de estos grupos. Se trata de una investigación cualitativa, descriptiva y analítica, realizada en cuatro grupos operativos de salud en atención primaria de un municipio de Rio Grande do Norte (Brasil), en el interior de la región semiárida del Nordeste de Brasil. Los datos se recogieron de un cuestionario socioeconómico y de grupos focales en el período entre marzo y agosto de 2023, utilizando estadística descriptiva para los cuestionarios y análisis de contenido temático para los grupos focales. Los cuestionarios revelaron un predominio de los participantes del sexo femenino, mayores de 60 años y con nivel socioeconómico de bajos ingresos. El análisis de contenido demostró la eficacia de los grupos en la producción de vectores grupales y factores terapéuticos, además de su potencial como campo de educación popular en salud para fomentar redes sociales, apoyo, acogida y bienestar biopsicosocial. Los grupos de salud son estrategias efectivas para promover la salud y la calidad de vida. Sin embargo, se destaca la necesidad de investigaciones que evalúen la efectividad global de los grupos en los procesos de morbimortalidad.

4.
J Adv Prosthodont ; 16(3): 139-150, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38957291

RESUMEN

PURPOSE: The purpose of this diagnostic study was to assess the accuracy and time efficiency of a digital method to draw the denture foundation extension outline on preliminary casts compared with the conventional technique. MATERIALS AND METHODS: A total of 28 preliminary edentulous casts with no anatomical landmarks were digitized using a laboratory scanner. The outlining of the entire basal seat of the denture was performed on preliminary casts and digitized. Casts with no extension outline were digitized and outlines were drawn using software (DWOS, Straumann). The accuracy of the extension outlined between both techniques was evaluated in the software (GOM Inspect; GOM GmbH) by file superimposition. Specificity and sensitivity tests were applied to measure accuracy. The paired t-test (95% CI) was used to compare the mean total area and the working time. RESULTS: The accuracy ranged from 0.57 to 0.92. The buccal and labial frenulum showed a lower value in the maxilla (0.57); while the area between the retromolar pad and buccal frenulum (0.64) showed a lower score in the mandible. The maxillary denture foundation and the working time for both arches were significantly longer for the digital method (P < .001). CONCLUSION: The denture foundation extension outline exhibited a sufficiently excellent accuracy for the digital method, except for the maxillary anterior region. However, the digital method required a longer working time.

5.
Proc Natl Acad Sci U S A ; 121(25): e2322962121, 2024 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-38870054

RESUMEN

Metallic alloys often form phases-known as solid solutions-in which chemical elements are spread out on the same crystal lattice in an almost random manner. The tendency of certain chemical motifs to be more common than others is known as chemical short-range order (SRO), and it has received substantial consideration in alloys with multiple chemical elements present in large concentrations due to their extreme configurational complexity (e.g., high-entropy alloys). SRO renders solid solutions "slightly less random than completely random," which is a physically intuitive picture, but not easily quantifiable due to the sheer number of possible chemical motifs and their subtle spatial distribution on the lattice. Here, we present a multiscale method to predict and quantify the SRO state of an alloy with atomic resolution, incorporating machine learning techniques to bridge the gap between electronic-structure calculations and the characteristic length scale of SRO. The result is an approach capable of predicting SRO length scale in agreement with experimental measurements while comprehensively correlating SRO with fundamental quantities such as local lattice distortions. This work advances the quantitative understanding of solid-solution phases, paving the way for the rigorous incorporation of SRO length scales into predictive mechanical and thermodynamic models.

6.
Clin Oral Investig ; 28(6): 320, 2024 May 16.
Artículo en Inglés | MEDLINE | ID: mdl-38750145

RESUMEN

OBJECTIVES: The purpose of this scoping review was to identify different methods employed for recording the maxillomandibular relationship (MMR) for computer-aided designed and manufactured (CAD-CAM) complete dentures (CDs). MATERIALS AND METHODS: This scoping review followed the PRISMA-ScR guidelines and was developed according to Arksey and O'Malley and The Joanna Briggs Institute protocol. The methods were registered on the Open Science Framework (< osf.io/rf4xm> ). The focus question was: "What are the different techniques for recording the maxillomandibular relationship in the digital workflow used in CECDs?" Two investigators searched 3 online databases [MEDLINE (PubMed), Scopus, and Science Direct] independently. The inclusion criteria were clinical studies and reviews that assessed techniques for recording MMR using digital workflow for manufacturing of CECDs. A descriptive analysis was performed considering the study design, manufacturing system, clinical steps, and tools for the determination of MMR, and the difficulty level of procedures. RESULTS: 4779 articles were identified in the electronic search and 10 studies were included for data analysis. The review identified 4 commercially available CAD-CAM denture systems and 3 innovative methods suitable for abbreviating the number of appointments (2 to 4 visits). The trial denture is inherent to the procedure for the Baltic System and 3 innovative techniques. Three techniques (2 innovative and WholeYouNexteeth) demonstrated lower difficulty levels for performing the clinical procedures, regardless of the professional skills. CONCLUSIONS: The commercially available and innovative techniques for the recording of MMR may provide predictability of the treatment. The techniques are effective, however, rely on the learning curve and the patient's clinical condition. CLINICAL RELEVANCE: Recording of the maxillomandibular relationship is paramount for the manufacturing and functionality of complete dentures. Clinicians should be aware of the different tools and techniques described for registering the jaw relationship.


Asunto(s)
Diseño Asistido por Computadora , Diseño de Dentadura , Dentadura Completa , Humanos , Diseño de Dentadura/métodos , Registro de la Relación Maxilomandibular/métodos
7.
J Prosthet Dent ; 131(6): 1252.e1-1252.e10, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38553302

RESUMEN

STATEMENT OF PROBLEM: The difference in chemical composition between denture base resin and denture teeth requires the development of bonding protocols that increase the union between the materials. PURPOSE: The purpose of this in vitro study was to evaluate the impact of different bonding protocols on the bond between heat-polymerized and 3-dimensionally (3D) printed acrylic resin denture bases and acrylic resin prefabricated and 3D printed artificial teeth. MATERIAL AND METHODS: Four types of artificial teeth were evaluated: prefabricated acrylic resin (VITA MFT) and 3D printed (Cosmos TEMP, PRIZMA 3D Bio Denture, and PrintaX AA Temp) bonded to 20×24-mm cylinders of heat-polymerized (VipiWave) and 3D printed (Cosmos Denture, PRIZMA 3D Bio Denture, and PrintaX BB Base) denture bases. Three bonding protocols were tested (n=20): mechanical retention with perforation + monomer (PT1), mechanical retention with perforation + airborne-particle abrasion with 50-µm aluminum oxide + monomer (PT2), and mechanical retention with perforation + Palabond (PT3). Half of the specimens in each group received 10 000 thermocycles and were then subjected to the bonding test at a crosshead speed of 1 mm/minute. The failure type was analyzed and scanning electron micrographs made. Additionally, surface roughness (Ra) and wettability (degree) were analyzed (n=15). ANOVA was used to evaluate the effect of the bonding protocol, and the Student t test was applied to compare the experimental groups with the control (α=.05). For type of failure, a descriptive analysis was carried out using absolute and relative frequency. The Kruskal-Wallis test was used to evaluate the surface changes (α=.05). RESULTS: Among the protocols, PT3 with in Yller and PT2 with Prizma had the highest bond strengths of the heat-polymerized denture base and 3D printed teeth (P<.05). When comparing the experimental groups with the control, PT3 and PT2 had greater union with the 3D printed denture base + 3D printed teeth (in Yller), with no difference from the heat-polymerized denture base + prefabricated teeth in acrylic resin. The treatment of the 3D printed tooth surfaces affected the surface roughness of Prizma (P<.001) and wettability (P<.001). CONCLUSIONS: To increase the bond between Yller 3D printed denture base + 3D printed teeth, a bonding protocol including mechanical retention with perforation + Palabond or mechanical retention with perforation + airborne-particle abrasion with aluminum oxide + monomer is indicated. For the other materials tested, further bonding protocols need to be investigated.


Asunto(s)
Resinas Acrílicas , Recubrimiento Dental Adhesivo , Bases para Dentadura , Impresión Tridimensional , Diente Artificial , Resinas Acrílicas/química , Recubrimiento Dental Adhesivo/métodos , Técnicas In Vitro , Ensayo de Materiales , Propiedades de Superficie , Humanos , Materiales Dentales/química , Diseño de Dentadura
8.
Enferm. glob ; 23(73): 283-321, ene. 2024.
Artículo en Español | IBECS | ID: ibc-228896

RESUMEN

Introducción: En la Consulta de Enfermería de Puericultura, el enfermero realiza el seguimiento delcrecimiento y desarrollo del niño, práctica fundamental para la promoción y prevención de la salud. Sin embargo, hay fragilidades en la implementación, como vacíos en los registros y fallas en la evaluación preventiva de resultados importantes en la infancia, como obesidad y desnutrición. Objetivo: Identificar las acciones del enfermero en la consulta de enfermería de puericultura en la red de Atención Primaria de un municipio de la región semiárida del Nordeste de Brasil. Método: Estudio cualitativo descriptivo-exploratorio realizado con 9 enfermeros que trabajan en las Estrategias Salud de la Familia de la Atención Primaria de un municipio del estado de Río Grande del Norte, en la región semiárida del nordeste de Brasil. Los datos fueron recolectados a través de entrevistas semiestructuradas entre enero y marzo de 2021 y analizados mediante Análisis de Contenido Temático. Resultados: Surgieron 5 categorías de análisis y discusión: acogida para el vínculo; antropometría y examen físico; seguimiento del desarrollo infantil; educación para la salud: comportamiento para el cuidado; Dificultades para completar la libreta de salud del niño. Conclusión: Se observó que el enfermero es capaz de realizar una evaluación integral de la salud del niño, el vínculo y la acogida y la educación para la salud forman parte de la atención. Se verificó que hay deficiencias en la cumplimentación de la cartilla y que el proceso de enfermería no sigue la estructura esperada, lo que puede comprometer la calidad de la atención (AU)


Introdução: Na Consulta de Enfermagem em puericultura, o enfermeiro realiza a vigilância do crescimento e desenvolvimento da criança, prática essencial para promoção e prevenção da saúde. Entretanto, evidencia-se fragilidades na sua implementação como lacunas de registros e debilidades na avaliação preventiva de desfechos importantes na infância, como obesidade e desnutrição. Objetivo: Identificar as ações do enfermeiro na consulta de enfermagem em puericultura na rede de Atenção Básica de um município do Semiárido Nordestino brasileiro.Métodos: Estudo qualitativo descritivo-exploratório realizado com 9 enfermeiros atuantes nas Estratégias de Saúde da Família da Atenção Básica de um município do Estado do Rio Grande do Norte, interior do semiárido nordestino brasileiro. Os dados foram coletados por entrevista semiestruturada entre janeiro e março de 2021 e analisados por Análise de Conteúdo do tipo Temática. Resultados: Emergiram 5 categorias de análise e discussão: acolhimento para o vínculo; antropometria e exame físico; vigilância do desenvolvimento infantil; educação em saúde: atitude de cuidado; dificuldades no preenchimento da caderneta de saúde da criança. Conclusão: Percebeu-se queos enfermeiros conseguem realizar ampla avaliação de saúde das crianças, perpassando o cuidado pelo vínculo e acolhimento e pela educação em saúde. Evidencia-se que as deficiências no preenchimento da caderneta existem e que o processo de enfermagem não obedece a estrutura prevista, podendo comprometer com a qualidade da assistência (AU)


Introduction: In Childcare Nursing Consultations, nurses monitor children's growth and development, an essential practice for health promotion and prevention. However, there are weaknesses in their implementation, such as gaps in records and deficits in the preventive assessment of important outcomes in childhood, such as obesity and malnutrition. Objective: To identify nurses' actions in childcare Nursing consultations in the Primary Care network of a municipality in the semi-arid region of northeastern Brazil. Methods: A qualitative and descriptive-exploratory study carried out with 9 nurses working in the Family Health Strategies of Primary Care in a municipality from the state of Rio Grande do Norte, in the inland of the semi-arid region of northeastern Brazil. The data were collected through semi-structured interviews between January and March 2021 and analyzed using Thematic Content Analysis. Results: A total of 5 analysis and discussion categories emerged: welcoming for the bond; anthropometry and physical examination; child development surveillance; health education: caring attitude; and difficulties completing the children's health booklets. Conclusion: It was noticed that nurses are able to carry out a comprehensive assessment of children's health, permeating care through bonding, welcoming and health education. It is evidenced that there are deficiencies in completing the booklets and that the Nursing Process does not follow the expected structure, which may compromise care quality (AU)


Asunto(s)
Humanos , Atención Primaria de Salud , Enfermería de Atención Primaria , Enfermeras Pediátricas , Proceso de Enfermería , Investigación Cualitativa , Entrevistas como Asunto
9.
Rev. Baiana Saúde Pública (Online) ; 47(4): 53-65, 20240131.
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1537648

RESUMEN

Arboviruses cause public health problems in several countries, and records show that they can generate central and peripheral neurological complications with permanent sequelae. However, it is not certain which arbovirus is responsible for outbreaks of the Guillain-Barré Syndrome (GBS), especially in Brazil. Thus, the objective of this study is to verify if there is a coincidence between the GBS outbreak and the most common arboviruses in Northeastern Brazil, as well as their relationship. An ecological time series study was designed with the federative units of Northeastern Brazil, using hospitalizations for Guillain-Barré syndrome and notifications of arbovirus infections between 2014 and 2019 as a data source. Distribution incidence curves were constructed for the conditions studied, and generalized estimating equations (GEE) models were applied to estimate the relationship between arboviruses and Guillain-Barré. The results showed a similar distribution for the incidences of Chikungunya virus (z=7.82; p=0.001), Zika virus (z=3.69; p=0.03), and Guillain-Barré syndrome (z=2.98; p=0.05) from 2014 to 2019. The GEE model revealed that the distribution of Chikungunya incidence is associated with the distribution of GBS incidence in each year (x2Wald=3,969; p=0.046). This pattern was repeated in seven of the nine states, while the Zika virus had a significant relationship with GBS in only two states. The outbreak of GBS in Northeastern Brazil appears to be probabilistically related to outbreaks of the Chikungunya virus.


As arboviroses são problemas de saúde pública em vários países e há registros de que podem produzir complicações neurológicas centrais e periféricas com sequelas permanentes. Entretanto, não se sabe ao certo qual delas é realmente responsável pelos surtos da Síndrome de Guillain-Barré (SGB), principalmente no Brasil. Assim, o objetivo é verificar se há coincidência entre o surto de SGB e as arboviroses mais comuns no Nordeste do Brasil e suas relações. Foi desenhado um estudo ecológico de série temporal com as unidades federativas do Nordeste do Brasil, adotando como fonte de dados as internações Guillain-Barré e as notificações de infecções por arbovírus entre 2014 e 2019. Curvas de distribuição de incidência foram construídas para as condições estudadas, e foram aplicados modelos de equações generalizadas estimadas (GEE) para estimar a relação entre arbovírus e Guillain-Barré. Evidencia-se que há distribuição semelhante para as incidências do vírus Chikungunya (z=7,82; p=0,001), vírus Zika (z=3,69; p=0,03) e síndrome de Guillain-Barré (z=2,98; p=0,05) entre 2014 e 2019. O modelo GEE revelou que a distribuição da incidência de Chikungunya está associada à distribuição da incidência de SGB em cada ano (x2Wald=3,969; p=0,046). Esse padrão se repetiu em sete dos nove estados, enquanto o zika vírus teve uma relação significativa com o GBS em apenas dois estados. Conclui-se, então, que o surto de SGB no Nordeste do Brasil parece estar probabilisticamente relacionado aos surtos do vírus Chikungunya.


Los arbovirus causan problemas de salud pública en varios países y, según indican los reportes, pueden producir complicaciones neurológicas centrales y periféricas con secuelas permanentes. Sin embargo, no se sabe cuál de ellos es realmente el responsable de los brotes del síndrome de Guillain-Barré (SGB), especialmente en Brasil. Así, el objetivo de este estudio es verificar si existen coincidencias entre el brote del SGB y los arbovirus más comunes en el Noreste de Brasil y sus asociaciones. Se diseñó un estudio de series temporales ecológico en las unidades federativas del Noreste de Brasil, adoptando como fuente de datos las hospitalizaciones y las notificaciones de arbovirosis de Guillain-Barré entre 2014 y 2019. Se construyeron curvas de distribución de incidencia para las condiciones científicas, y se aplicó una ecuación estimada generalizada (GEE) para estimar la relación entre arbovirus y Guillain-Barré. Se encontró que existe una distribución similar en las incidencias de virus del chikunguña (z=7,82; p=0,001), virus del Zika (z=3,69; p=0,03) y síndrome de Guillain-Barré (z =2,98; p=0,05) entre 2014 y 2019. El modelo GEE reveló que la distribución de la incidencia de chikunguña está asociada con la distribución de la incidencia de SGB en cada año (x2Wald=3,969; p=0,046). Este patrón se repitió en siete de los nueve estados, mientras que el virus del Zika presentó una relación significativa con el SGB en solo dos estados. El brote del SGB en el Noreste de Brasil parece estar relacionado probabilísticamente con los brotes del virus del chikunguña.

10.
Acta Cir Bras ; 38: e383723, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37851782

RESUMEN

PURPOSE: To evaluate the modulatory properties of Calendula officinalis L. (Asteraceae) (C. officinalis) extract on cafeteria diet-fed rats. METHODS: A cafeteria diet was administered ad libitum for 45 days to induce dyslipidemia. Then, the rats were treated with the formulations containing C. officinalis in the doses of 50, 100, and 150 mg/kg or only with the vehicle formulation; the control group received a commercial ration. RESULTS: The cafeteria diet decreased glutathione S-transferase activity and high-density lipoprotein plasmatic levels and damaged the hepatic architecture. The C. officinalis extract was able to reduce lipid infiltration in liver tissue and to modulate oxidative stress and lipid profile markers. CONCLUSIONS: The correlations between the variables suggest a pathological connection between oxidative stress markers and serum lipid profile.


Asunto(s)
Calendula , Ratas , Animales , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , Hígado , Estrés Oxidativo , Dieta , Colesterol , Carbohidratos/farmacología
11.
Artículo en Inglés | MEDLINE | ID: mdl-37731084

RESUMEN

The perceived offset position of a moving target has been found to be displaced forward, in the direction of motion (Representational Momentum; RM), downward, in the direction of gravity (Representational Gravity; RG), and, recently, further displaced along the horizon implied by the visual context (Representational Horizon; RH). The latter, while still underexplored, offers the prospect to clarify the role of visual contextual cues in spatial orientation and in the perception of dynamic events. As such, the present work sets forth to ascertain the robustness of Representational Horizon across varying types of visual contexts, particularly between interior and exterior scenes, and to clarify to what degree it reflects a perceptual or response phenomenon. To that end, participants were shown targets, moving along one out of several possible trajectories, overlaid on a randomly chosen background depicting either an interior or exterior scene rotated -22.5º, 0º, or 22.5º in relation to the actual vertical. Upon the vanishing of the target, participants were required to indicate its last seen location with a computer mouse. For half the participants, the background vanished with the target while for the remaining it was kept visible until a response was provided. Spatial localisations were subjected to a discrete Fourier decomposition procedure to obtain independent estimates of RM, RG, and RH. Outcomes showed that RH's direction was biased towards the horizon implied by the visual context, but solely for exterior scenes, and irrespective of its presence or absence during the spatial localisation response, supporting its perceptual/representational nature.

12.
J Psychiatr Pract ; 29(5): 421-425, 2023 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-37624756

RESUMEN

Behçet disease (BD) is a rare, multifactorial condition with multiple manifestations affecting various systems. Bipolar disorder has been reported as more frequent in individuals with BD than in the general population. We report a case of BD and bipolar disorder and summarize previous findings in the literature concerning this topic. Our case illustrates the relevance of managing comorbid BD and bipolar disorder. It is crucial to manage both conditions to maximize the patient's quality of life. Clinicians should be aware of the risk of bipolar disorder in patients with BD and vice versa and an integrated model of care could be useful. The exact biological and psychological aspects mediating the association between the 2 diagnoses remain unclear. Further, larger, prospective studies could help better clarify this relationship, leading to new advances in diagnosis and treatment.


Asunto(s)
Síndrome de Behçet , Trastorno Bipolar , Humanos , Trastorno Bipolar/diagnóstico , Trastorno Bipolar/terapia , Síndrome de Behçet/complicaciones , Síndrome de Behçet/diagnóstico , Estudios Prospectivos , Calidad de Vida
14.
Clin Oral Investig ; 27(5): 2207-2220, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36933047

RESUMEN

OBJECTIVE: To evaluate the thermocycling effect of 3D-printed resins on flexural strength, surface roughness, microbiological adhesion, and porosity. MATERIALS AND METHODS: 150 bars (8 × 2 × 2 mm) and 100 blocks (8 × 8 × 2 mm) were made and divided into 5 groups, according to two factors: "material" (AR: acrylic resin, CR: composite resin, BIS: bis-acryl resin, CAD: CAD/CAM resin, and PRINT: 3D-printed resin) and "aging" (non-aged and aged - TC). Half of them were subjected to thermocycling (10,000 cycles). The bars were subjected to mini-flexural strength (σ) test (1 mm/min). All the blocks were subjected to roughness analysis (Ra/Rq/Rz). The non-aged blocks were subjected to porosity analysis (micro-CT; n = 5) and fungal adherence (n = 10). Data were statistically analyzed (one-way ANOVA, two-way ANOVA; Tukey's test, α = 0.05). RESULTS: For σ, "material" and "aging" factors were statistically significant (p < 0.0001). The BIS (118.23 ± 16.26A) presented a higher σ and the PRINT group (49.87 ± 7.55E) had the lowest mean σ. All groups showed a decrease in σ after TC, except for PRINT. The CRTC showed the lowest Weibull modulus. The AR showed higher roughness than BIS. Porosity revealed that the AR (1.369%) and BIS (6.339%) presented the highest porosity, and the CAD (0.002%) had the lowest porosity. Cell adhesion was significantly different between the CR (6.81) and CAD (6.37). CONCLUSION: Thermocycling reduced the flexural strength of most provisional materials, except for 3D-printed resin. However, it did not influence the surface roughness. The CR showed higher microbiological adherence than CAD group. The BIS group reached the highest porosity while the CAD group had the lowest values. CLINICAL RELEVANCE: 3D-printed resins are promising materials for clinical applications because they have good mechanical properties and low fungal adhesion.


Asunto(s)
Resinas Acrílicas , Resistencia Flexional , Ensayo de Materiales , Microtomografía por Rayos X , Propiedades de Superficie , Diseño Asistido por Computadora , Impresión Tridimensional , Coronas
15.
Artículo en Inglés, Francés | LILACS-Express | LILACS | ID: biblio-1532270

RESUMEN

A formação dos profissionais de saúde segue em discussão há tempos ­ no Brasil e no mundo ­, assim como as mudanças dos paradigmas sanitários e dos modelos de cuidado em saúde. Com a criação do Sistema Único de Saúde e a implantação da Estratégia de Saúde da Família (ESF) como reorganizadores da atenção em saúde, brotam, neste cenário, questões e problemas bioéticos não vividos anteriormente no âmbito da prática de saúde hospitalar. Este artigo apresenta os resultados da realização de uma oficina de formação em bioética com a participação de 130 pessoas (128 profissionais da ESF no município de Viçosa, Minas Gerais, e dois convidados), promovida pela integração da universidade com o serviço de saúde local. Os referenciais utilizados incluíram o pluralismo metodológico, o trabalho em pequenos grupos, a aprendizagem significativa e o uso da arte para a construção das competências em bioética. Os resultados verificados foram otimistas quanto à efetividade da ação, tanto na ótica dos profissionais da ESF quanto dos participantes (facilitadores e docentes envolvidos), promovendo-se uma construção coletiva de saberes para a práxis.


The training of health professionals has been a point of discussion for a long time in Brazil and around the world, as well as changes in health paradigms and health care models. With the merger of the National Health System and the implementation of the Family Health Strategy (FHS) as organizer of health care, issues and problems emerged, which were not previously thought about in the context of health and hospital practice, mainly reflections on ethical and bioethical aspects. This paper presents the results of conducting a training workshop on bioethics with the participation of 130 people (128 FHS professionals in Viçosa, Minas Gerais and two guests), sponsored by the university's integration with the local health service, based on the use of methodological pluralism, small group work, learning and meaningful use of art for the construction of expertise in bioethics. Actual outcomes were optimistic about the effectiveness of the action, from the viewpoint of both the FHS professionals and participants (facilitators and professors involved), promoting a collective construction of knowledge for practice.


La formación de los profesionales de la salud es objeto de debate desde hace mucho tiempo - en Brasil y en el mundo -, así como los cambios de paradigmas y modelos de salud para el cuidado de la salud. Con la creación del Sistema Único de Salud (SUS) y de la aplicación de la Estrategia Salud de la Familia (ESF) como de reorganizadores cuidado de la salud, surgen, en este escenario, los problemas y las cuestiones de bioética que no se vivieron dentro de la práctica de la salud del hospital. Este artículo presenta los resultados de la realización de una capacitación sobre la bioética con la participación de 130 personas (128 profesionales de la ESF en Viçosa, Minas Gerais y dos invitados), promovido por la integración de la universidad con el servicio de salud local. Los puntos de referencia utilizados incluyen el pluralismo metodológico, el trabajo en pequeños grupos, el aprendizaje significativo y el uso del arte para la construcción de capacidades en bioética. Los resultados observados se mostraron optimistas acerca de la efectividad de la acción, tanto desde el punto de vista de los profesionales de la ESF, y los participantes (facilitadores y profesores involucrados), la promoción de una construcción colectiva de conocimiento a la práctica.

16.
J Prosthodont ; 32(S1): 38-44, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35661475

RESUMEN

PURPOSE: To investigate surface characteristics (roughness and contact angle), anti-biofilm formation, and mechanical properties (mini-flexural strength) of computer-aided design and computer-aided manufacturing (CAD-CAM) polymethylmethacrylate (PMMA) polymer, and three-dimensional (3D) printed resin for denture base fabrication compared with conventional heat polymerized denture base resins. MATERIALS AND METHODS: A total of 60 discs and 40 rectangular specimens were fabricated from one CAD-CAM (AvaDent), one 3D printed (Cosmos Denture), and two conventional heat polymerized (Lucitone 199 and VipiWave) materials for denture base fabrication. Roughness was determined by Ra value; the contact angle was measured by the sessile drop method. The biofilm formation inhibition behavior was analyzed through Candida albicans adhesion, while mini-flexural strength test was done using a three-point bending test. The data were analyzed using descriptive and analytical statistics (α = 0.05). RESULTS: The CAD-CAM PMMA group showed the lowest C. albicans adhesion (log CFU/mL: 3.74 ± 0.57) and highest mini-flexural strength mean (114.96 ± 16.23 MPa). 3D printed specimens presented the highest surface roughness (Ra: 0.317 ± 0.151 µm) and lowest mini-flexural strength values (57.23 ± 9.07 MPa). However, there was no statistical difference between CAD-CAM PMMA and conventional groups for roughness, contact angle, and mini-flexural strength. CONCLUSIONS: CAD-CAM milled materials present surface and mechanical properties similar to conventional resins and show improved behavior in preventing C. albicans adhesion. Nevertheless, 3D printed resins present decreased mini-flexural strength.


Asunto(s)
Bases para Dentadura , Polimetil Metacrilato , Ensayo de Materiales , Propiedades de Superficie , Diseño Asistido por Computadora , Impresión Tridimensional
17.
J Prosthet Dent ; 130(2): 164-170, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34865836

RESUMEN

This technical report describes a novel workflow for complete denture fabrication designed to abbreviate the necessary steps for dental prostheses delivery by using a 3-appointment protocol in which preliminary impressions are made in the first session together with the registration of maxillary lip support, occlusal plane, and reference lines for tooth arrangement. A trial denture is fabricated with conventional or computer-aided design and computer-aided manufacturing procedures and is evaluated in the second appointment for esthetics, the definitive impression, and the maxillomandibular relationship record to provide precise references for definitive denture fabrication.


Asunto(s)
Dentadura Completa , Estética Dental , Flujo de Trabajo , Oclusión Dental , Diseño Asistido por Computadora , Técnica de Impresión Dental
18.
J Prosthet Dent ; 129(1): 18-23, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34112523

RESUMEN

This article describes a technique for making complete-arch implant-supported fixed prostheses by using intraoral scanning and computer-aided design and computer-aided manufacturing (CAD-CAM) technology for the fabrication of a metal substructure and conventional processing for the prosthesis base. For this, a device was designed to accurately capture the position of multiple implants and the associated digitalized surgical guide, and the metal substructure was planned and milled directly in cobalt-chromium. The color of the gingiva and artificial teeth was selected by using the intraoral scanner software program, and the prosthesis base was processed conventionally. The straightforward methods used to fabricate the prostheses eliminated possible errors associated with conventional substructure casting and occlusal registration.


Asunto(s)
Implantes Dentales , Diseño de Prótesis Dental , Diseño de Prótesis Dental/métodos , Flujo de Trabajo , Prótesis Dental de Soporte Implantado/métodos , Diseño Asistido por Computadora , Diente Artificial
19.
Neuropsychiatr ; 37(2): 101-104, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36151446

RESUMEN

BACKGROUND: Stroke is currently the second leading cause of death in the elderly population. Neuropsychiatric complications following stroke are common, can be overlooked, and are associated with low quality of life, increase in the burden of caregiving and impaired functional status. METHODS: We report a case of poststroke psychosis in a woman without prior psychiatric history. In addition, a brief, nonsystematic review of the pertinent literature was performed. RESULTS: Psychosis can present in almost 5% of stroke survivors. Many patients with poststroke psychosis have no previous psychiatric history and the most common lesion locations include the right frontal, temporal and parietal lobes, the white matter connecting those areas, as well as the right caudate nucleus. Compared to other stroke survivors, patients with poststroke psychosis are more likely to depend on assistance in their everyday lives, can have more difficulty coping with the sequelae of stroke, and have an increased 10-year mortality risk. Guidelines for diagnosing and managing poststroke psychosis are needed. CONCLUSION: Psychosis is a possible complication of stroke and is associated with impairment and increased mortality. Guidelines for diagnosing and managing poststroke psychosis are currently lacking. To assure evidence-based care, further research is needed.


Asunto(s)
Trastornos Psicóticos , Accidente Cerebrovascular , Femenino , Humanos , Anciano , Calidad de Vida , Trastornos Psicóticos/etiología , Trastornos Psicóticos/complicaciones , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/diagnóstico , Progresión de la Enfermedad
20.
Texto & contexto enferm ; 32: e20230105, 2023. tab, graf
Artículo en Inglés | LILACS-Express | LILACS, BDENF - Enfermería | ID: biblio-1515606

RESUMEN

ABSTRACT Objective: to examine the interprofessional education elements present in the integrated curricula of the Multiprofessional Residency Programs in Health in the cities from inland Rio Grande do Norte. Method: a documentary research study based on the analysis of three Pedagogical Course Projects with a quantitative approach. The data were extracted with the aid of an adapted instrument, processed in the Iramuteq software, presented in charts and in a dendrogram and analyzed by thematic categories and interpretively. Results: the text corpus was built from the organization of all the information through the adapted instrument and subsequently analyzed in Iramuteq through Descending Hierarchical Classification. The emergence of two main classes was identified: Class 3, which was subdivided into classes 1 and 2; and Class 4. From the keywords found in the dendrogram corresponding to each Class and their statistical similarity, it was possible to organize the classes into analysis categories, as follows: Class 3 - Interprofessional Education: Actors, contexts and strategies; and Class 4 - Methodological and evaluative strategies for building interprofessional competencies and skills. Through the Pedagogical Course Projects, a training process that values the development of competencies for teamwork, interprofessional and comprehensive care is indicated, based on the guiding principles of interprofessional education. Conclusion: there is an effort by the pedagogical projects to point to an integrated curriculum based on Interprofessional Education since, in their theoretical framework, they contribute fundamental principles for developing the teaching-learning process.


RESUMEN Objetivo: examinar los elementos de la educación interprofesional presentes en los planes de estudios integrados de los Programas de Residencia Multiprofesionales en Salud en las ciudades del interior do Rio Grande do Norte. Método: investigación documental a partir del análisis de tres Proyectos Pedagógicos de Carreras Universitarias con enfoque cuantitativo. Los datos se extrajeron con la ayuda de un instrumento adaptado, se los procesó en el programa de software Iramuteq, se presentaron en forma de cuadros y de dendrograma y se los analizó por categorías temáticas y en forma interpretativa. Resultados: el corpus de texto se elaboró a partir de organizar toda la información en el instrumento adaptado e, inmediatamente después, se lo analizó en Iramuteq por medio de Clasificación Jerárquica Descendente. Se identificaron dos clases principales: a Clase 3, que se subdividió en las clases 1 y 2; y Clase 4. A partir de las palabras clave presentes en el dendrograma de cada Clase y su similitud estadística, fue posible organizar las clases en categorías de análisis, a saber: Clase 3 - Educación interprofesional: Actores, contextos y estrategias; y Clase 4 - Estrategias metodológicas y evaluativas para desarrollar competencias y habilidades interprofesionales. A través de los Proyectos Pedagógicos de Carreras Universitarias, se señala un proceso formativo que valoriza el desarrollo de competencias para trabajo en equipo, interprofesional y cuidado integral, a partir de principios guía de la educación interprofesional. Conclusión: los proyectos pedagógicos se esfuerzan por indicar el camino a un plan de estudios integrado y fundamentado en la Educación Interprofesional, puesto que incluyen principios fundamentales para desarrollar el proceso de en enseñanza-aprendizaje en su marco teórico.


RESUMO Objetivo: examinar os elementos da educação interprofissional presentes nos currículos integrados das Residências Multiprofissionais em Saúde nas cidades do interior do Rio Grande do Norte. Método: pesquisa documental a partir da análise de três Projetos Pedagógicos de Curso com abordagem quantitativa. Os dados foram coletados de novembro de 2022 a janeiro de 2023 e extraídos com auxílio de um instrumento adaptado, processados no software Iramuteq, apresentados em quadros, dendograma e analisados por categorias temáticas e interpretativamente. Resultados: o corpus textual foi construído a partir da organização das informações através do instrumento adaptado e, logo após, analisado no Iramuteq por meio de Classificação Hierárquica Descendente. Identificou-se o surgimento de duas classes principais: a Classe 3, que se subdividiu em classe 1 e 2; e a Classe 4. A partir das palavras-chaves presentes no dendrograma de cada Classe e sua similaridade estatística, foi possível organizar as classes em categorias de análises, sendo: Classe 3 - Educação interprofissional: Atores, contextos e estratégias; e Classe 4 - Estratégias metodológicas e avaliativas para a construção de competências e habilidades interprofissionais. Indica-se, através dos Projetos Pedagógicos de Curso, um processo formativo que valoriza a construção de competências para um trabalho em equipe, interprofissional e cuidado integral, a partir de princípios norteadores da educação interprofissional. Conclusão: há um esforço dos projetos pedagógicos em apontar para um currículo integrado fundamentado em Educação Interprofissional, visto que trazem, em seu arcabouço teórico, princípios fundamentais para o desenvolvimento do processo ensino-aprendizagem.

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