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1.
Sensors (Basel) ; 24(11)2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38894274

RESUMO

Emotion recognition has become increasingly important in the field of Deep Learning (DL) and computer vision due to its broad applicability by using human-computer interaction (HCI) in areas such as psychology, healthcare, and entertainment. In this paper, we conduct a systematic review of facial and pose emotion recognition using DL and computer vision, analyzing and evaluating 77 papers from different sources under Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Our review covers several topics, including the scope and purpose of the studies, the methods employed, and the used datasets. The scope of this work is to conduct a systematic review of facial and pose emotion recognition using DL methods and computer vision. The studies were categorized based on a proposed taxonomy that describes the type of expressions used for emotion detection, the testing environment, the currently relevant DL methods, and the datasets used. The taxonomy of methods in our review includes Convolutional Neural Network (CNN), Faster Region-based Convolutional Neural Network (R-CNN), Vision Transformer (ViT), and "Other NNs", which are the most commonly used models in the analyzed studies, indicating their trendiness in the field. Hybrid and augmented models are not explicitly categorized within this taxonomy, but they are still important to the field. This review offers an understanding of state-of-the-art computer vision algorithms and datasets for emotion recognition through facial expressions and body poses, allowing researchers to understand its fundamental components and trends.


Assuntos
Aprendizado Profundo , Emoções , Expressão Facial , Redes Neurais de Computação , Humanos , Emoções/fisiologia
2.
Mol Biotechnol ; 2024 Jun 04.
Artigo em Inglês | MEDLINE | ID: mdl-38834896

RESUMO

Parkinson's disease (PD) is a debilitating condition that can cause locomotor problems in affected patients, such as tremors and body rigidity. PD therapy often includes the use of monoamine oxidase B (MAOB) inhibitors, particularly phenylhalogen compounds and coumarin-based semi-synthetic compounds. The objective of this study was to analyze the structural, pharmacokinetic, and pharmacodynamic profile of a series of Triazolo Thiadiazepine-fused Coumarin Derivatives (TDCDs) against MAOB, in comparison with the inhibitor safinamide. To achieve this goal, we utilized structure-based virtual screening techniques, including target prediction and absorption, distribution, metabolism, and excretion (ADME) prediction based on multi-parameter optimization (MPO) topological analysis, as well as ligand-based virtual screening techniques, such as docking and molecular dynamics. The findings indicate that the TDCDs exhibit structural similarity to other bioactive compounds containing coumarin and MAOB-binding azoles, which are present in the ChEMBL database. The topological analyses suggest that TDCD3 has the best ADME profile, particularly due to the alignment between low lipophilicity and high polarity. The coumarin and triazole portions make a strong contribution to this profile, resulting in a permeability with Papp estimated at 2.15 × 10-5 cm/s, indicating high cell viability. The substance is predicted to be metabolically stable. It is important to note that this is an objective evaluation based on the available data. Molecular docking simulations showed that the ligand has an affinity energy of - 8.075 kcal/mol with MAOB and interacts with biological substrate residues such as Pro102 and Phe103. The results suggest that the compound has a safe profile in relation to the MAOB model, making it a promising active ingredient for the treatment of PD.

3.
Sensors (Basel) ; 24(10)2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38793871

RESUMO

The sky may seem big enough for two flying vehicles to collide, but the facts show that mid-air collisions still occur occasionally and are a significant concern. Pilots learn manual tactics to avoid collisions, such as see-and-avoid, but these rules have limitations. Automated solutions have reduced collisions, but these technologies are not mandatory in all countries or airspaces, and they are expensive. These problems have prompted researchers to continue the search for low-cost solutions. One attractive solution is to use computer vision to detect obstacles in the air due to its reduced cost and weight. A well-trained deep learning solution is appealing because object detection is fast in most cases, but it relies entirely on the training data set. The algorithm chosen for this study is optical flow. The optical flow vectors can help us to separate the motion caused by camera motion from the motion caused by incoming objects without relying on training data. This paper describes the development of an optical flow-based airborne obstacle detection algorithm to avoid mid-air collisions. The approach uses the visual information from a monocular camera and detects the obstacles using morphological filters, optical flow, focus of expansion, and a data clustering algorithm. The proposal was evaluated using realistic vision data obtained with a self-developed simulator. The simulator provides different environments, trajectories, and altitudes of flying objects. The results showed that the optical flow-based algorithm detected all incoming obstacles along their trajectories in the experiments. The results showed an F-score greater than 75% and a good balance between precision and recall.

4.
Brain Sci ; 14(5)2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38790475

RESUMO

This study explores the multifaceted influence of litter size, maternal care, exercise, and aging on rats' neurobehavioral plasticity and dentate gyrus microglia dynamics. Body weight evolution revealed a progressive increase until maturity, followed by a decline during aging, with larger litters exhibiting lower weights initially. Notably, exercised rats from smaller litters displayed higher body weights during the mature and aged stages. The dentate gyrus volumes showed no significant differences among groups, except for aged sedentary rats from smaller litters, which exhibited a reduction. Maternal care varied significantly based on litter size, with large litter dams showing lower frequencies of caregiving behaviors. Behavioral assays highlighted the detrimental impact of a sedentary lifestyle and reduced maternal care/large litters on spatial memory, mitigated by exercise in aged rats from smaller litters. The microglial dynamics in the layers of dentate gyrus revealed age-related changes modulated by litter size and exercise. Exercise interventions mitigated microgliosis associated with aging, particularly in aged rats. These findings underscore the complex interplay between early-life experiences, exercise, microglial dynamics, and neurobehavioral outcomes during aging.

5.
Braz J Microbiol ; 2024 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-38743245

RESUMO

Candida spp. can be found in the human microbiome. However, immunocompromised patients are likely to develop invasive Candida infections, with mortality rates higher than 50%. The discovery of C. auris, a species that rapidly acquire antifungal resistance, increased the concern about Candida infections. The limited number of antifungal agents and the high incidence of resistance to them make imperative the development of new antifungal drugs. ß-lapachone is a biological active naphthoquinone that displays antifungal activity against C. albicans and C. glabrata. The aim of this study was to evaluate if this substance affects C. auris growth and elucidate its mechanism of action. A fluconazole-resistant C. auris isolate was used in this study. The antifungal activity of ß-lapachone was determined through microbroth dilution assays, and its mechanism of action was evaluated using fluorescent probes. Interaction with fluconazole and amphotericin B was assessed by disk diffusion assay and checkerboard. ß-lapachone inhibited planktonic C. auris cell growth by 92.7%, biofilm formation by 84.9%, and decrease the metabolism of preformed biofilms by 87.1% at 100 µg/ml. At 100 µg/ml, reductions of 30% and 59% of Calcofluor White and Nile red fluorescences were observed, indicating that ß-lapachone affects cell wall chitin and neutral lipids content, respectively. Also, the ratio 590 nm/529 nm of JC-1 decreased 52%, showing that the compound affects mitochondria. No synergism was observed between ß-lapachone and fluconazole or amphotericin B. Data show that ß-lapachone may be a promising candidate to be used as monotherapy to treat C. auris resistant infections.

6.
Cureus ; 16(4): e57620, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38707090

RESUMO

Purple urine bag syndrome (PUBS) is a rare manifestation of urinary tract infection (UTI) characterized by bluish-purple discoloration of urine, typically seen in patients with long-term urinary catheters. It occurs due to the bacterial metabolism of dietary tryptophan into indole, which is converted into indoxyl sulfate in the liver and then excreted in the urine, where it reacts with catheter materials under alkaline conditions. Risk factors include chronic constipation, advanced age, female gender, dehydration, and recurrent UTIs. Morganella morganii is one of the bacteria commonly implicated. Although usually benign, PUBS can signal underlying UTIs, especially in asymptomatic patients. The case presented involves an 81-year-old woman with a history of urothelial carcinoma and a monoJ catheter since pelvic exenteration and ureterostomy. She presented with blue-colored urine in the collection bag; she was asymptomatic, but the urinalysis had leukocytes, nitrites and alkaline pH, and the uroculture was positive for M. morganii. Antibiotic therapy resolved the symptoms initially, but recurrence prompted further treatment and optimization of constipation management. PUBS, although rare, poses risks, especially in vulnerable populations. Identification of risk factors and causative agents is crucial for effective treatment, typically involving catheter replacement, antimicrobial therapy, and constipation correction. Prevention focuses on minimizing catheter use, regular replacement, and hygiene optimization. Early recognition and management in primary care settings can prevent complications and reduce patient and caregiver distress. In conclusion, PUBS is a visually evident condition that may serve as an early indication of UTI, particularly in patients with chronic catheterization. Treatment and prevention strategies should be tailored to individual risk factors to prevent the recurrence or persistence of the syndrome. Awareness among healthcare professionals and patients is essential for timely diagnosis and management. The presented case demonstrates the importance of primary care in managing complex conditions and highlights the close patient-physician relationship in such settings.

7.
Cureus ; 16(3): e57023, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38545422

RESUMO

Introduction Human papillomavirus (HPV) infection, a prevalent sexually transmitted disease, affects the majority of sexually active individuals at least once in their lifetime. Cervical cancer stands as a significant contributor to mortality among women. Cervical cancer screening (CCS) and HPV vaccination are recent, with few studies about their impact on the prevalence of HPV types. The emergence of novel predominant pathogen strains can be driven by vaccine-induced pathogen strain replacement, thereby enhancing and altering selection. Objective The aim of the study was to characterize the high-risk (HR) HPV infection in two Portuguese primary care units (PCUs). Materials and methods In this observational, cross-sectional, and descriptive study, we included women aged 25-64 years and registered in two PCUs, who were screened by SiiMA Rastreios (population-based screening management application), and were HR-HPV positive, between August 2015 and May 2018. The results of cervical cancer screening (CCS) can be accessed through the SiiMA Rastreios information system. For data treatment, we used MS Excel (Microsoft Corporation, Redmond, Washington, USA), IBM SPSS Statistics for Windows, Version 20 (Released 2011; IBM Corp., Armonk, New York, USA), and non-parametric tests. Results In our study, we included 4,614 women aged between 25 and 64 years old. CCS was performed on 24.47%, of whom 39.95% were tested for HR-HPV. The infection rate was 18.85%, and all 14 types of infection were identified. The most common HPV type was 31, followed by 16 and 68. We found HPV other than 16/18 in 84.43%. We found coinfections in 34.1%, with no statistically significant difference by age group. In the 25-34 age group, the incidence of infection was 33.7% vs. 17.54% in the 35-54 age group and 4.55% in the 55-64 age group. HPV16 was the most common infection in the 25-34 age group. In nulliparous women, the most common was HPV31. The relationship between smoking habits and HR-HPV infection was statistically significant, but economic insufficiency was not. Conclusion The infection incidence in this study was slightly higher than in the 2011 national study. Statistically, the infection rate was significantly higher in the younger age groups. The most frequent type varied from the national and international study results. This may be due to regional differences in HPV infection, changes in the pattern of incidence, or the effect of vaccination. The HPV pattern may be changing, so the scientific community must keep updated to develop increasingly efficient screening and vaccination programs.

8.
Front Public Health ; 12: 1369129, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38476486

RESUMO

Introduction: The COVID-19 pandemic has prompted global research efforts to reduce infection impact, highlighting the potential of cross-disciplinary collaboration to enhance research quality and efficiency. Methods: At the FMUSP-HC academic health system, we implemented innovative flow management routines for collecting, organizing and analyzing demographic data, COVID-related data and biological materials from over 4,500 patients with confirmed SARS-CoV-2 infection hospitalized from 2020 to 2022. This strategy was mainly planned in three areas: organizing a database with data from the hospitalizations; setting-up a multidisciplinary taskforce to conduct follow-up assessments after discharge; and organizing a biobank. Additionally, a COVID-19 curated collection was created within the institutional digital library of academic papers to map the research output. Results: Over the course of the experience, the possible benefits and challenges of this type of research support approach were identified and discussed, leading to a set of recommended strategies to enhance collaboration within the research institution. Demographic and clinical data from COVID-19 hospitalizations were compiled in a database including adults and a minority of children and adolescents with laboratory confirmed COVID-19, covering 2020-2022, with approximately 350 fields per patient. To date, this database has been used in 16 published studies. Additionally, we assessed 700 adults 6 to 11 months after hospitalization through comprehensive, multidisciplinary in-person evaluations; this database, comprising around 2000 fields per subject, was used in 15 publications. Furthermore, thousands of blood samples collected during the acute phase and follow-up assessments remain stored for future investigations. To date, more than 3,700 aliquots have been used in ongoing research investigating various aspects of COVID-19. Lastly, the mapping of the overall research output revealed that between 2020 and 2022 our academic system produced 1,394 scientific articles on COVID-19. Discussion: Research is a crucial component of an effective epidemic response, and the preparation process should include a well-defined plan for organizing and sharing resources. The initiatives described in the present paper were successful in our aim to foster large-scale research in our institution. Although a single model may not be appropriate for all contexts, cross-disciplinary collaboration and open data sharing should make health research systems more efficient to generate the best evidence.


Assuntos
COVID-19 , Adulto , Adolescente , Criança , Humanos , SARS-CoV-2 , Pandemias , América Latina
9.
Cad Saude Publica ; 40(2): e00022623, 2024.
Artigo em Português, Inglês | MEDLINE | ID: mdl-38381867

RESUMO

The persistent symptoms of post-COVID-19 syndrome negatively impact health, quality of life, and productivity. This study aimed to describe the persistent symptoms of post-COVID-19 syndrome (especially neurological ones) and their 12-month post-infection cognitive, emotional, motor, quality of life, and indirect cost repercussions. Patients showing the first symptoms of COVID-19 from January to June 2021 who developed post-COVID-19 syndrome and sought care at the Fortaleza Unit (Ceará, Brazil) of the SARAH Network of Rehabilitation Hospitals were included in this study. Information was obtained at the baseline follow-up and by telephone interview 12 months post-infection. In total, 58 people participated in this study with an average age of 52.8±10.5 years, of which 60% required an ICU. The most frequent symptoms on admission included fatigue (64%), arthralgia (51%), and dyspnea (47%), whereas, after 12 months, fatigue (46%) and memory impairment (39%). The following scales/functional tests showed alterations: PCFS, MoCA, HAD, FSS, SF-36, TLS5x, timed up and go, 6-minute walk, and handgrip. Indirect costs totaled USD 227,821.00, with 11,653 days of absenteeism. Moreover, 32% of patients were unable to return to work. Better TLS5x and higher SF-36 scores in the functional capacity, physical functioning, vitality, and pain dimensions were associated with return to work (p ≤ 0.05). The most frequent persistent symptoms referred to fatigue, arthralgia, dyspnea, anxiety, and depression, which negatively affected cognitive, emotional, and motor function and quality of life. These symptoms lasted for over a year, especially fatigue and memory alteration, the latter of which being the most reported after COVID-19 infections. Results also show a significant difficulty returning to work and indirect costs of USD 4,847.25 per person/year.


Os sintomas persistentes da síndrome pós-COVID-19 acarretam impactos negativos na saúde, qualidade de vida e produtividade. O objetivo deste trabalho foi descrever os sintomas persistentes da síndrome pós-COVID-19, principalmente neurológicos, e as repercussões cognitivas, emocionais, motoras, de qualidade de vida e de custos indiretos, 12 meses após a infecção. Pacientes com primeiros sintomas entre janeiro e junho de 2021 evoluíram com síndrome pós-COVID-19 e procuraram atendimento na unidade da Rede SARAH de Hospitais de Reabilitação em Fortaleza, Ceará, Brasil. As informações foram obtidas no início do acompanhamento e por entrevista telefônica após 12 meses da infecção. Participaram do estudo 58 pessoas, com idade média de 52,8 anos (±10,5) e 60% permaneceram em UTI. Os sintomas mais frequentes na admissão foram: fadiga (64%), artralgia (51%) e dispneia (47%); e após 12 meses: fadiga (46%) e alteração de memória (39%). Foram identificadas alterações nas escalas/testes funcionais: PCFS, MoCA, HAD, FSS, SF-36, TLS5x, Timed up and go, caminhada de 6 minutos e preensão manual. Os custos indiretos totais foram de USD 227.821,00, com 11.653 dias de absenteísmo; 32% dos pacientes não voltaram a trabalhar. Melhores resultados de TLS5x e SF-36, nas dimensões capacidade funcional, aspecto físico, vitalidade e dor, demonstraram associação com retorno laboral (p ≤ 0,05). Os sintomas persistentes mais frequentes foram: fadiga, artralgia, dispneia, ansiedade e depressão, com repercussões negativas na funcionalidade cognitiva, emocional, motora e qualidade de vida. Esses sintomas perduraram por mais de um ano, principalmente fadiga e alteração de memória, sendo esta última mais relatada tardiamente. Houve dificuldade importante de retorno laboral e custos indiretos de USD 4.847,25 por pessoa/ano.


Síntomas persistentes del síndrome post-COVID-19 provocan impactos negativos en la salud, calidad de vida y productividad. El objetivo fue describir los síntomas persistentes del síndrome post-COVID-19, sobre todo neurológicos, y las repercusiones cognitivas, emocionales, motoras, de calidad de vida y los costos indirectos, 12 meses tras la infección. Pacientes que tuvieron los primeros síntomas entre enero y junio de 2021, desarrollaron síndrome post-COVID-19 y buscaron atención en la unidad de la Red SARAH de Hospitales de Rehabilitación en Fortaleza, Ceará, Brasil. Las informaciones se obtuvieron al inicio del seguimiento y por entrevista telefónica 12 meses tras la infección. Participaron 58 personas, con edad de 52,8±10,5 años y el 60% permaneció en la UTI. Los síntomas más frecuentes al ingreso fueron: fatiga (64%), artralgia (51%) y disnea (47%); tras 12 meses fueron: fatiga (46%) y alteración de memoria (39%). Se identificaron alteraciones en las escalas/testes funcionales: PCFS, MoCA, HAD, FSS, SF-36, TLS5x, timed up and go, caminar por 6 minutos y prensión manual. Los costos indirectos totales fueron USD 227.821,00, con 11.653 días de absentismo. El 32% de los pacientes no volvió a trabajar. Mejor TLS5x y SF-36 en las dimensiones capacidad funcional, aspecto físico, vitalidad y dolor demostraron una asociación con el retorno al trabajo (p ≤ 0,05). Los síntomas persistentes más frecuentes fueron fatiga, artralgia, disnea, ansiedad y depresión, con repercusiones negativas en la funcionalidad cognitiva, emocional, motora y calidad de vida. Estos síntomas continuaron por más de un año, sobre todo la fatiga y la alteración de la memoria, siendo esta última reportada con más frecuencia tardíamente. Hubo una dificultad importante en el retorno al trabajo y costos indirectos de USD 4.847,25 persona/año.


Assuntos
COVID-19 , Qualidade de Vida , Humanos , Adulto , Pessoa de Meia-Idade , Brasil/epidemiologia , Força da Mão , Síndrome de COVID-19 Pós-Aguda , Retorno ao Trabalho , Artralgia , Dispneia , Fadiga/etiologia
10.
Braz J Microbiol ; 55(2): 1647-1654, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38374323

RESUMO

The Enterobacteriaceae family is recognized as a primary group of Gram-negative pathogens responsible for foodborne illnesses and is frequently associated with antibiotic resistance. The present study explores the natural-based compound trans-cinnamaldehyde (TC) against drug-resistant Enterobacteriaceae and its synergism with gentamicin (GEN) to address this issue. The research employs three strains of Escherichia coli, Klebsiella pneumoniae, and Enterobacter cloacae, previously isolated from shrimp. The antibacterial activity was evaluated by the disk diffusion method, microdilution test, kinetics of growth, and time-kill curve. In addition, the synergistic effect between TC/GEN was investigated by checkerboard assay. All strains showed sensitivity to TC with an inhibition zone diameter > 35 mm. The TC showed inhibitory and bactericidal action in the most tested bacteria around 625 µg/mL. Sub-inhibitory amounts (1/2 and 1/4 MIC) of TC interfered with the growth kinetics by lag phase extension and decreased the log phase. Time-kill curves show a reduction of viable cells after the first hour of TC treatment at bactericidal concentrations. The synergistic effect between TC/GEN was observed for E. coli and E. cloacae strains with FICi ranging from 0.15 to 0.50. These findings, therefore, suggest TC as a promising alternative in the fight against drug-resistant Enterobacteriaceae that can cause foodborne illnesses.


Assuntos
Acroleína , Antibacterianos , Sinergismo Farmacológico , Enterobacteriaceae , Gentamicinas , Testes de Sensibilidade Microbiana , Antibacterianos/farmacologia , Gentamicinas/farmacologia , Enterobacteriaceae/efeitos dos fármacos , Enterobacteriaceae/crescimento & desenvolvimento , Acroleína/análogos & derivados , Acroleína/farmacologia , Animais , Microbiologia de Alimentos , Doenças Transmitidas por Alimentos/microbiologia , Doenças Transmitidas por Alimentos/prevenção & controle
11.
Mar Pollut Bull ; 200: 116129, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38340375

RESUMO

23 livers of South American fur seal (Arctocephalus australis) found stranded in southern Brazilian beaches were evaluated for Persistent Organic Pollutants (POPs) and Polycyclic Aromatic Hydrocarbons (PAHs). POPs (DDTs, mirex, eldrin, dieldrin, aldrin, isodrin, HCHs, chlordanes and PCBs) and PAHs in livers were Soxhlet extracted, analyzed and quantified using Gas Chromatography Tandem Mass Spectrometry (GC-TQMS). The main POPs found were PCBs and DDTs, totaling 81 %. Among pesticides, mirex followed DDTs, possibly due to usage in Uruguay, followed by Σdrins, ΣCHLs and ΣHCHs. Naphthalene was the major PAH found, while heavier compounds did not significantly bioaccumulate. Concentrations of POPs resembled previous findings for A. australis. Considering only juveniles, no POPs showed significant differences between sexes. Lipidic content, weight and length did not show any correlation with POP concentration. This was the first record of PAHs and PBDEs in South American fur seals, and the levels of these pollutants were relatively low.


Assuntos
Poluentes Ambientais , Otárias , Hidrocarbonetos Clorados , Praguicidas , Bifenilos Policlorados , Hidrocarbonetos Policíclicos Aromáticos , Poluentes Químicos da Água , Animais , Bifenilos Policlorados/análise , Hidrocarbonetos Clorados/análise , Poluentes Orgânicos Persistentes , Monitoramento Ambiental/métodos , Hidrocarbonetos Policíclicos Aromáticos/análise , Mirex , Brasil , Cromatografia Gasosa-Espectrometria de Massas , Poluentes Ambientais/análise , Praguicidas/análise , Fígado/química , Éteres Difenil Halogenados/análise , Poluentes Químicos da Água/análise
12.
Artigo em Inglês | MEDLINE | ID: mdl-38248555

RESUMO

BACKGROUND: the integration of dentistry services in the Unified Health System in Brazil (SUS) is essential in primary care assistance. OBJECTIVE: we aimed to develop a tool for improving demand flowby evaluating the impact of oral health on the daily activities of users of the Family Health Unitusing the Oral Impacts of Daily Performance (OIDP)tool. METHODS: In Barretos, Brazil, a cross-sectional study was conducted at a Family Health Unit (FHU)including patients over 12 years old. Oral health impact was assessed using the Oral Impacts of Daily Performance (OIDP) tool, and family risk was measured with the Coelho-Savassi scale. RESULTS: 430 participants, including 411 adults and 19 young people, were recruited. Of the adults, 31% had an average OIDP score of 16.61. For young people, 53% reported an impact (average OIDP score: 28.61). Family risk (R1) was prevalent in 57.9% of young people and 53.3% of adults. Among adults, different activities were affected by risk: smiling without embarrassment (risk level 2), enjoying contact with people (risk level 3), and performing one's job or social role (risk level 1). Emotional state (R3) had the lowest OIDP score (p = 0.029). CONCLUSION: implementation of the OIDP scale in clinical practice enhances healthcare planning and ensures better-quality and equitable services, thus emphasizing comprehensive oral healthcare within the SUS.


Assuntos
Assistência Integral à Saúde , Saúde Bucal , Adulto , Humanos , Adolescente , Criança , Estudos Transversais , Brasil , Constrangimento
13.
Prev Med Rep ; 38: 102587, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38288262

RESUMO

Introduction: The COVID-19 pandemic may lead to reduced physical activity (PA) in health care workers (HCWs). Objective: To evaluate leisure and transport-related PA in HCW of a COVID-19-dedicated hospital during the first wave of the COVID-19 pandemic. Methods: This is a cross-sectional study with a sample of 1,527 HCWs. Socioeconomic aspects, occupational characteristics, and engagement in leisure and transport-related PA were investigated through an online survey administered in August of 2020. Results: More than 80 % HCWs performed < 150 min/week of leisure-related PA, and 85 % performed ≤ 30 min/day transport-related PA. Being male was associated with more PA (OR: 1.93; 95 % CI:1.40-2.66) and transport-related PA; working in nursing, physical therapy, and cleaning/housekeeping services was associated with low PA (OR: 0.70; 95 % CI:0.51-0.95). Physicians and administrative staff were less active in transport-related PA. Conclusions: HCWs working in a COVID-19 hospital had low levels of PA in the domains of leisure and transportation.

14.
Life Sci Alliance ; 7(4)2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38228373

RESUMO

Accurate centrosome separation and positioning during early mitosis relies on force-generating mechanisms regulated by a combination of extracellular, cytoplasmic, and nuclear cues. The identity of the nuclear cues involved in this process remains largely unknown. Here, we investigate how the prophase nucleus contributes to centrosome positioning during the initial stages of mitosis, using a combination of cell micropatterning, high-resolution live-cell imaging, and quantitative 3D cellular reconstruction. We show that in untransformed RPE-1 cells, centrosome positioning is regulated by a nuclear signal, independently of external cues. This nuclear mechanism relies on the linker of nucleoskeleton and cytoskeleton complex that controls the timely loading of dynein on the nuclear envelope (NE), providing spatial cues for robust centrosome positioning on the shortest nuclear axis, before nuclear envelope permeabilization. Our results demonstrate how nuclear-cytoskeletal coupling maintains a robust centrosome positioning mechanism to ensure efficient mitotic spindle assembly.


Assuntos
Centrossomo , Membrana Nuclear , Mitose , Prófase , Núcleo Celular
15.
Pesqui. bras. odontopediatria clín. integr ; 24: e220153, 2024. tab, graf
Artigo em Inglês | LILACS, BBO - Odontologia | ID: biblio-1529138

RESUMO

Abstract Objective: To analyze the existing state legislation, including not only the ordinary laws, but also their infralegal regulation and the state legislation on Hospital Dentistry. Material and Methods: A survey was carried out in the databases of the Legislative Assemblies of the Brazilian States and the Federal District, as well as the Regional and Federal Councils of Dentistry in Brazil. Subsequently, a survey was carried out in the databases of the Ministry of Health, State Dental Councils and Federal Dental Council in Brazil. Results: Only 8 Brazilian states have legislation in force regarding hospital dentistry, which represents 29.63% of the federative units. Among the Brazilian regions, the Midwest presented the highest prevalence of the laws found (37.50%), followed by the North (25%) and the other regions with the same coverage (12.50%). Also, an orientation and an ordinance from the Ministry of Health, six resolutions from the Federal Council of Dentistry, and a technical note from the National Health Surveillance Agency were found. Conclusion: Several States do not have rules on the subject, making it imperative to create a federal rule that not only imposes the presence of the dentist, but also regulates the proportion of the team, workload, and availability.


Assuntos
Saúde Bucal/legislação & jurisprudência , Unidade Hospitalar de Odontologia/legislação & jurisprudência , Equipe Hospitalar de Odontologia/legislação & jurisprudência , Unidades de Terapia Intensiva/legislação & jurisprudência , Inquéritos e Questionários , Interpretação Estatística de Dados , Carga de Trabalho , Odontólogos , Legislação Odontológica
16.
RGO (Porto Alegre) ; 72: e20240008, 2024. graf
Artigo em Inglês | LILACS-Express | LILACS, BBO - Odontologia | ID: biblio-1558804

RESUMO

ABSTRACT This report presents the case of an adult patient with mental and intellectual limitations, whose main complaint was dental aesthetics. Dental treatment was performed at the Piracicaba Dental School and approved by the Ethics Committee (CAAE: 65752322.2.0000.5418). Clinically, the patient had inadequacies in the dental arrangement, with periodontal involvement that put the dental elements at risk. In intraoral clinical aspects, the deficiency was identified as maxillary atresia. The buccolingual inclination of the mandibular anterior teeth highlighted the severe crowding and anterior crossing of these teeth. Dental treatment was carried out aiming at the remission of periodontal and orthodontic problems in an integrated manner and with approaches that allowed greater interaction, participation, and patient compliance during treatment. Supra and subgingival scrapings and extraction of the upper left lateral incisor were performed. After three months of periodontal treatment, orthodontic treatment was started with fixed orthodontic appliances. The main objective was to level and align the teeth in both arches to achieve better aesthetic and functional conditions. Due to the COVID-19 pandemic, treatment has been discontinued. This resulted in the regression of the results obtained, including regarding self-care. People with disabilities require dental care with specific strategies for their needs, which must be carried out by a multidisciplinary team. Despite the access limitation imposed by the pandemic, the patient reestablished his motivation to restart treatment, which was facilitated by the bond of trust established between him and the team.


RESUMO Este relato apresenta o caso de um paciente adulto com limitações mentais e intelectuais, cuja queixa principal era a estética dental. O tratamento odontológico foi realizado na Faculdade de Odontologia de Piracicaba e aprovado pelo Comitê de Ética (CAAE: 65752322.2.0000.5418). Clinicamente, o paciente apresentava inadequações no arranjo dentário, com comprometimento periodontal, que colocava em risco os elementos dentais. Nos aspectos clínicos intrabucais, a deficiência foi identificada como atresia maxilar. A inclinação vestíbulo-lingual dos dentes anteriores inferiores destacou o apinhamento severo e o cruzamento anterior desses dentes. O tratamento odontológico foi realizado visando à remissão dos problemas periodontais e ortodônticos de forma integrada e com abordagens que permitissem maior interação, participação e adesão do paciente durante o tratamento. Foram realizadas raspagens supra e subgengivais e extração do incisivo lateral superior esquerdo. Após três meses de tratamento periodontal, iniciou-se o tratamento ortodôntico com aparelhos ortodônticos fixos. O objetivo principal foi nivelar e alinhar os dentes em ambas as arcadas para alcançar melhores condições estéticas e funcionais. Devido à pandemia de COVID-19, o tratamento foi interrompido. Isso resultou na regressão dos resultados obtidos, inclusive quanto ao autocuidado. As pessoas com deficiência requerem atendimento odontológico com estratégias específicas para suas necessidades, que devem ser realizadas por uma equipe multidisciplinar. Apesar da limitação de acesso imposta pela pandemia, o paciente restabeleceu sua motivação para reiniciar o tratamento, o que foi facilitado pelo vínculo de confiança estabelecido entre ele e a equipe.

17.
Cad. Saúde Pública (Online) ; 40(2): e00022623, 2024. tab, graf
Artigo em Português | LILACS-Express | LILACS | ID: biblio-1534114

RESUMO

Os sintomas persistentes da síndrome pós-COVID-19 acarretam impactos negativos na saúde, qualidade de vida e produtividade. O objetivo deste trabalho foi descrever os sintomas persistentes da síndrome pós-COVID-19, principalmente neurológicos, e as repercussões cognitivas, emocionais, motoras, de qualidade de vida e de custos indiretos, 12 meses após a infecção. Pacientes com primeiros sintomas entre janeiro e junho de 2021 evoluíram com síndrome pós-COVID-19 e procuraram atendimento na unidade da Rede SARAH de Hospitais de Reabilitação em Fortaleza, Ceará, Brasil. As informações foram obtidas no início do acompanhamento e por entrevista telefônica após 12 meses da infecção. Participaram do estudo 58 pessoas, com idade média de 52,8 anos (±10,5) e 60% permaneceram em UTI. Os sintomas mais frequentes na admissão foram: fadiga (64%), artralgia (51%) e dispneia (47%); e após 12 meses: fadiga (46%) e alteração de memória (39%). Foram identificadas alterações nas escalas/testes funcionais: PCFS, MoCA, HAD, FSS, SF-36, TLS5x, Timed up and go, caminhada de 6 minutos e preensão manual. Os custos indiretos totais foram de USD 227.821,00, com 11.653 dias de absenteísmo; 32% dos pacientes não voltaram a trabalhar. Melhores resultados de TLS5x e SF-36, nas dimensões capacidade funcional, aspecto físico, vitalidade e dor, demonstraram associação com retorno laboral (p ≤ 0,05). Os sintomas persistentes mais frequentes foram: fadiga, artralgia, dispneia, ansiedade e depressão, com repercussões negativas na funcionalidade cognitiva, emocional, motora e qualidade de vida. Esses sintomas perduraram por mais de um ano, principalmente fadiga e alteração de memória, sendo esta última mais relatada tardiamente. Houve dificuldade importante de retorno laboral e custos indiretos de USD 4.847,25 por pessoa/ano.


Síntomas persistentes del síndrome post-COVID-19 provocan impactos negativos en la salud, calidad de vida y productividad. El objetivo fue describir los síntomas persistentes del síndrome post-COVID-19, sobre todo neurológicos, y las repercusiones cognitivas, emocionales, motoras, de calidad de vida y los costos indirectos, 12 meses tras la infección. Pacientes que tuvieron los primeros síntomas entre enero y junio de 2021, desarrollaron síndrome post-COVID-19 y buscaron atención en la unidad de la Red SARAH de Hospitales de Rehabilitación en Fortaleza, Ceará, Brasil. Las informaciones se obtuvieron al inicio del seguimiento y por entrevista telefónica 12 meses tras la infección. Participaron 58 personas, con edad de 52,8±10,5 años y el 60% permaneció en la UTI. Los síntomas más frecuentes al ingreso fueron: fatiga (64%), artralgia (51%) y disnea (47%); tras 12 meses fueron: fatiga (46%) y alteración de memoria (39%). Se identificaron alteraciones en las escalas/testes funcionales: PCFS, MoCA, HAD, FSS, SF-36, TLS5x, timed up and go, caminar por 6 minutos y prensión manual. Los costos indirectos totales fueron USD 227.821,00, con 11.653 días de absentismo. El 32% de los pacientes no volvió a trabajar. Mejor TLS5x y SF-36 en las dimensiones capacidad funcional, aspecto físico, vitalidad y dolor demostraron una asociación con el retorno al trabajo (p ≤ 0,05). Los síntomas persistentes más frecuentes fueron fatiga, artralgia, disnea, ansiedad y depresión, con repercusiones negativas en la funcionalidad cognitiva, emocional, motora y calidad de vida. Estos síntomas continuaron por más de un año, sobre todo la fatiga y la alteración de la memoria, siendo esta última reportada con más frecuencia tardíamente. Hubo una dificultad importante en el retorno al trabajo y costos indirectos de USD 4.847,25 persona/año.


The persistent symptoms of post-COVID-19 syndrome negatively impact health, quality of life, and productivity. This study aimed to describe the persistent symptoms of post-COVID-19 syndrome (especially neurological ones) and their 12-month post-infection cognitive, emotional, motor, quality of life, and indirect cost repercussions. Patients showing the first symptoms of COVID-19 from January to June 2021 who developed post-COVID-19 syndrome and sought care at the Fortaleza Unit (Ceará, Brazil) of the SARAH Network of Rehabilitation Hospitals were included in this study. Information was obtained at the baseline follow-up and by telephone interview 12 months post-infection. In total, 58 people participated in this study with an average age of 52.8±10.5 years, of which 60% required an ICU. The most frequent symptoms on admission included fatigue (64%), arthralgia (51%), and dyspnea (47%), whereas, after 12 months, fatigue (46%) and memory impairment (39%). The following scales/functional tests showed alterations: PCFS, MoCA, HAD, FSS, SF-36, TLS5x, timed up and go, 6-minute walk, and handgrip. Indirect costs totaled USD 227,821.00, with 11,653 days of absenteeism. Moreover, 32% of patients were unable to return to work. Better TLS5x and higher SF-36 scores in the functional capacity, physical functioning, vitality, and pain dimensions were associated with return to work (p ≤ 0.05). The most frequent persistent symptoms referred to fatigue, arthralgia, dyspnea, anxiety, and depression, which negatively affected cognitive, emotional, and motor function and quality of life. These symptoms lasted for over a year, especially fatigue and memory alteration, the latter of which being the most reported after COVID-19 infections. Results also show a significant difficulty returning to work and indirect costs of USD 4,847.25 per person/year.

18.
Plants (Basel) ; 12(23)2023 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-38068664

RESUMO

The adaptive potential of plants is commonly used as an indicator of genotypes with higher breeding program potential. However, the complexity and interaction of plant metabolic parameters pose a challenge to selection strategies. In this context, this study aimed to explore phenotypic plasticity within the germplasm of Hybrid Timor coffee. Additionally, we assessed the utility of the multivariate phenotypic plasticity index (MVPi) as a promising tool to predict genotype performance across diverse climatic conditions. To achieve this, we evaluated the performance of seven accessions from the Hybrid Timor germplasm in comparison to the Rubi and IPR 100 cultivars, known for their susceptibility and resistance to drought, respectively. The experiment took place in a greenhouse under two conditions: one with normal soil moisture levels near maximum capacity, and the other with a water deficit scenario involving a period of no irrigation followed by rehydration. Data on physiological and biochemical factors were collected at three stages: before applying the water deficit, during its imposition, and after rehydration. Growth data were obtained by the difference between the beginning and end of the experimental period Furthermore, field evaluations of the productivity of the same genotypes were carried out over two consecutive seasons. Based on physiological and biochemical assessments, the MVPi was computed, employing Euclidean distance between principal component multivariate analysis scores. Subsequently, this index was correlated with growth and productivity data through linear regressions. Our findings reveal that the plastic genotypes that are capable of significantly altering physiological and biochemical parameters in response to environmental stimuli exhibited reduced biomass loss in both aerial and root parts. As a result, this positively influenced their productivity. Enhanced plasticity was particularly prominent in accessions from the MG Germplasm Collection: MG 311-Hybrid Timor UFV 428-02, MG 270-Hybrid Timor UFV 377-21, and MG 279-Hybrid Timor UFV 376-31, alongside the Rubi MG 1192 cultivar. The MVPi emerged as a valuable instrument to assess genotype adaptability and predict their performance under varying climatic scenarios.

19.
Materials (Basel) ; 16(24)2023 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-38138655

RESUMO

Metal additive manufacturing (AM) is a layer-by-layer process that makes the direct manufacturing of various industrial parts possible. This method facilitates the design and fabrication of complex industrial, advanced, and fine parts that are used in different industry sectors, such as aerospace, medicine, turbines, and jewelry, where the utilization of other fabrication techniques is difficult or impossible. This method is advantageous in terms of dimensional accuracy and fabrication speed. However, the parts fabricated by this method may suffer from faults such as anisotropy, micro-porosity, and defective joints. Metals like titanium, aluminum, stainless steels, superalloys, etc., have been used-in the form of powder or wire-as feed materials in the additive manufacturing of various parts. The main criterion that distinguishes different additive manufacturing processes from each other is the deposition method. With regard to this criterion, AM processes can be divided into four classes: local melting, sintering, sheet forming, and electrochemical methods. Parameters affecting the properties of the additive-manufactured part and the defects associated with an AM process determine the method by which a certain part should be manufactured. This study is a survey of different additive manufacturing processes, their mechanisms, capabilities, shortcomings, and the general properties of the parts manufactured by them.

20.
J Fungi (Basel) ; 9(11)2023 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-37998920

RESUMO

Candida species are one of the most concerning causative agents of fungal infections in humans. The treatment of invasive Candida infections is based on the use of fluconazole, but the emergence of resistant isolates has been an increasing concern which has led to the study of alternative drugs with antifungal activity. Sphingolipids have been considered a promising target due to their roles in fungal growth and virulence. Inhibitors of the sphingolipid biosynthetic pathway have been described to display antifungal properties, such as myriocin and aureobasidin A, which are active against resistant Candida isolates. In the present study, aureobasidin A did not display antibiofilm activity nor synergism with amphotericin B, but its combination with fluconazole was effective against Candida biofilms and protected the host in an in vivo infection model. Alterations in treated cells revealed increased oxidative stress, reduced mitochondrial membrane potential and chitin content, as well as altered morphology, enhanced DNA leakage and a greater susceptibility to sodium dodecyl sulphate (SDS). In addition, it seems to inhibit the efflux pump CaCdr2p. All these data contribute to elucidating the role of aureobasidin A on fungal cells, especially evidencing its promising use in clinical resistant isolates of Candida species.

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