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1.
Transl Lung Cancer Res ; 13(5): 1163-1168, 2024 May 31.
Artículo en Inglés | MEDLINE | ID: mdl-38854944

RESUMEN

Background: MET rearrangements are infrequently observed in non-small cell lung cancer (NSCLC). Advanced genomic detection techniques have unveiled such infrequent genomic variations, particularly MET fusions in approximately 0.5% of NSCLC patients. Tyrosine kinase inhibitors (TKIs) have revolutionized the standard of care in lung cancer and more recently a second generation MET TKI tepotinib received Food and Drug Administration (FDA) approval for MET exon 14 alterations in metastatic NSCLC. Despite this, the therapeutic landscape for MET-rearranged NSCLC patients remains significantly unexplored. The aim of our report is to detail a unique case of a patient with metastatic lung adenocarcinoma with a novel HLA-DQB2::MET fusion detected by next-generation sequencing (NGS) following previous treatment resistance. Case Description: A 73-year-old female was initially started on carboplatin, pemetrexed and pembrolizumab with maintenance, but eventually had progression in the left upper lobe (LUL). Upon progression she was enrolled in a clinical trial of a monoclonal antibody with or without a PD-1 inhibitor, but brain metastasis progression was eventually detected by magnetic resonance imaging (MRI) requiring stereotactic radiosurgery (SRS) and a craniotomy. The trial drug was eventually discontinued due to progression and toxicity and NGS on bronchoscopy tissue revealed HLA-DQB2::MET fusion. The patient was initiated on tepotinib and continues with clinical and radiological stable disease for over 12 months. The patient's response to a MET inhibitor, tepotinib, underscores the potential efficacy of selective MET inhibitors for individuals with previously unexplored MET fusions. Conclusions: The positive response to tepotinib of a patient with NSCLC harboring a novel MET-Fusion underscores the importance of the use of comprehensive next-generational sequencing-based panels and highlights the necessity for additional research and clinical exploration of selective MET inhibitors for managing NSCLC with MET rearrangements.

2.
Parasitol Res ; 123(5): 222, 2024 May 27.
Artículo en Inglés | MEDLINE | ID: mdl-38801539

RESUMEN

Toxoplasmosis is a worldwide zoonosis that affects warm-blooded animals, including humans. Wild animals can act as intermediate hosts of this pathogen; thus, this study aims to detect Toxoplasma gondii infection in invasive European brown hares in Brazil. For this, 72 wild European brown hares were captured from July 2020 to June 2022 in three Brazilian states: São Paulo, Paraná, and Rio Grande do Sul. The diagnostic of Toxoplasma gondii infection was performed by bioassay in mouse, histopathology in Hematoxylin-Eosin-stained tissue sections (brain, liver, lungs, kidneys, and small intestine), serology by IFAT, and molecular techniques by conventional PCR and qPCR. The combined prevalence of the different diagnostic methods was 51.4% (37/72, CI= 40.1 - 62.6 %), and there was no statistical difference between sexes, age range, or geographical region of the hosts. Mouse bioassay was the technique that detected more positive hares. To our knowledge, this is the first confirmation of Toxoplasma gondii infection in invasive European brown hares in Brazil. These animals act as reservoirs and potential infection source for carnivores and other wild and domestic animals, including humans, thus contributing to perpetuate the disease cycle in São Paulo, Paraná, and Rio Grande do Sul States. Research such as the present study is necessary to raise awareness about the role of animals in the disease cycle.


Asunto(s)
Liebres , Toxoplasma , Toxoplasmosis Animal , Animales , Brasil/epidemiología , Toxoplasmosis Animal/parasitología , Toxoplasmosis Animal/epidemiología , Toxoplasmosis Animal/diagnóstico , Liebres/parasitología , Toxoplasma/aislamiento & purificación , Ratones , Femenino , Masculino , Prevalencia , Bioensayo
3.
Enferm. glob ; 23(74): 1-13, abr.2024. tab
Artículo en Español | IBECS | ID: ibc-232282

RESUMEN

Introducción: El Síndrome de Burnout (SB) surge en el contexto de condiciones laborales precarias, y se manifiesta a través de un conjunto de signos y síntomas que afectan la psicología del trabajador debido a la exposición a factores estresantes en el ambiente laboral.Objetivo: Analizar la prevalencia y los factores asociados al Síndrome de Burnout (SB) en enfermeras de cuidados intensivos. Método: Estudio transversal y analítico, realizado con 94 enfermeros asistenciales en unidades de cuidados intensivos de un hospital público en el estado de Bahía. Se utilizó el Inventario de Burnout de Maslach (MBI) y un cuestionario que contenía aspectos sociodemográficos, culturales y ocupacionales. Resultados: El 62,8% mostró alto agotamiento emocional; 64,9% alta despersonalización y 77,7% alta reducción de la realización profesional. Los factores asociados al SB fueron: edad hasta 38 años (RP: 2,38; IC 95%: 1,44-3,94), no tener pareja (RP: 1,97; IC 95%: 1,17-3,32), insatisfacción laboral (RP: 1,78; IC 95%: 1,15 -2,75), tener dolor de espalda (RP: 3,33; IC 95%: 1,72 -6,42), ansiedad (RP: 2,33; IC 95%: 1,22-4,46) y patrón de sueño hasta 5 horas (RP: 1,67; IC 95%: 1,08-2,59). Se encontró que tener hijos es un índice protector (RP: 0,55; IC 95%: 0,33-0,90). Enfermería GlobalNº 74 Abril 2024Página 224Conclusión: Se considera alto el porcentaje de enfermeros con diagnóstico sugestivo del síndrome (43,6%), así como la existencia de factores asociados. Es fundamental que la institución ofrezca un ambiente de trabajo sano, en el que la prevención sea la mejor vía para que estos profesionales no se conviertan en blancos del síndrome. (AU)


Introdução: A Síndrome de Burnout (SB) emerge no contexto das condições laborais precárias, e se manifesta por meio de um conjunto de sinais e sintomas que afetam o psicológico do trabalhador devido à exposição a estressores no ambiente de trabalho.Objetivo: Analisar a prevalência e fatores a Síndrome de Burnout em enfermeiros de terapia intensiva. Método: Estudo transversal e analítico, realizado com 94 enfermeiros assistenciais de unidades de terapia intensiva de um hospital público do estado da Bahia, Brasil. Utilizou-se o Maslach Burnout Inventory (MBI) e um questionário contendo questões sociodemográficos, culturais e ocupacionais. Resultados: 62,8% apresentaram alta exaustão emocional; 64,9%, alta despersonalização; e 77,7%, alta redução da realização profissional. Os fatores associados à SB foram: idade até 38 anos (RP: 2,38; IC 95%: 1,44-3,94), não ter companheiro (RP: 1,97; IC 95%: 1,17-3,32), insatisfação com o trabalho (RP: 1,78; IC 95%: 1,15 -2,75), apresentar dores dorsais (RP: 3,33; IC 95%: 1,72 -6,42), ansiedade (RP: 2,33; IC 95%: 1,22-4,46) e padrão de sono até 05 horas (RP: 1,67; IC 95%: 1,08-2,59). Verificou-se que ter filhos é um índice protetor (RP: 0,55; IC 95%: 0,33-0,90). Conclusão: Existe um percentual considerado elevado de enfermeiros com diagnóstico sugestivo da síndrome (43,6%), assim como a existência de fatores associados. É imprescindível que a instituição ofereça um ambiente de trabalho sadio, no qual, a prevenção é a melhor maneira para que os profissionais não se tornem alvos da síndrome. (AU)


Introduction: Burnout Syndrome (BS) emerges in the context of precarious working conditions, and manifests itself through a set of signs and symptoms that affect the worker's psychology due to exposure to stressors in the work environment. Objective: to analyze the prevalence and factors associated with Burnout Syndrome (BS) in intensive care nurses. Method: cross-sectional and analytical study, carried out with 94 nurses in intensive care units of a public hospital in the state of Bahia. The Maslach Burnout Inventory (MBI) and a questionnaire containing sociodemographic, cultural and occupational issues were used. Results: 62.8% showed high emotional exhaustion; 64.9% high depersonalization and 77.7% high reduction in professional achievement. The factors associated with BS were: age up to 38 years (PR: 2.38; 95% CI: 1.44-3.94), not having a partner (PR: 1.97; 95% CI: 1.17-3.32), job dissatisfaction (PR: 1.78; 95% CI: 1.15 -2.75), having back pain (PR: 3.33; 95% CI: 1.72 -6.42), anxiety (PR: 2.33; 95% CI: 1.22-4.46) and sleep pattern up to 5 hours (PR: 1.67; 95% CI: 1.08-2.59). It was found that having children is a protective index (PR: 0.55; 95% CI: 0.33-0.90). Conclusion: there is a considered high percentage of nurses with a diagnosis suggestive of the syndrome (43.6%), as well as the existence of associated factors. It is essential that the institution offers a healthy work environment, in which prevention is the best way for these professionals not to become targets of the syndrome. (AU)


Asunto(s)
Humanos , Agotamiento Profesional , Enfermería , Unidades de Cuidados Intensivos , Psicología , Estrés Psicológico , Estudios Transversales
4.
Cancer Treat Res Commun ; 39: 100804, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38508132

RESUMEN

Despite the advancements in the treatment of localized pancreatic cancer, several unresolved issues persist in clinical practice, especially in the neoadjuvant setting. These include determining the criteria for selecting patients for treatment, identifying the most effective chemotherapy regimens, understanding the role of radiotherapy, and accurately assessing how patients respond to treatment. Current strategies for assessing patients before surgery involve thoroughly evaluating their overall health status, analyzing tumor markers, and using advanced imaging techniques. However, existing methods for staging the disease still have limitations when it comes to accurately detecting metastatic cancer. The ongoing debate between performing surgery upfront or administering neoadjuvant therapy highlights the need for robust clinical evidence to guide treatment decisions effectively. This review analyzes the evidence regarding controversial topics in neoadjuvant pancreatic cancer treatment and discusses further research efforts to enhance patient outcomes. To improve the outcomes found with surgery alone, multimodal treatment with chemotherapy.


Asunto(s)
Terapia Neoadyuvante , Neoplasias Pancreáticas , Humanos , Neoplasias Pancreáticas/terapia , Neoplasias Pancreáticas/patología , Neoplasias Pancreáticas/tratamiento farmacológico , Terapia Neoadyuvante/métodos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico
5.
Biomed Phys Eng Express ; 10(3)2024 Apr 23.
Artículo en Inglés | MEDLINE | ID: mdl-38507785

RESUMEN

The aim of this study was to use computer simulation to analyze the impact of the aluminum fixing support on the Reference Air Kerma (RAK), a physical quantity obtained in a calibration system that was experimentally developed in the Laboratory of Radiological Sciences of the University of the State of Rio de Janeiro (LCR-UERJ). Correction factors due to scattered radiation and the geometry of the192Ir sources were also sought to be determined. The computational simulation was validated by comparing some parameters of the experimental results with the computational results. These parameters were: verification of the inverse square law of distance, determination of (RAKR), analysis of the source spectrum with and without encapsulation, and the sensitivity curve of the Sourcecheck 4PI ionization chamber response, as a function of the distance from the source along the axial axis, using the microSelectron-v2 (mSv2) and GammaMedplus (GMp) sources. Kerma was determined by activity in the Reference air, with calculated values of 1.725 × 10-3U. Bq-1and 1.710 × 10-3U. Bq-1for the ionization chamber NE 2571 and TN 30001, respectively. The expanded uncertainty for these values was 0.932% and 0.919%, respectively, for a coverage factor (k = 2). The correction factor due to the influence of the aluminum fixing support for measurements at 1 cm and 10 cm from the source was 0.978 and 0.969, respectively. The geometric correction factor of the sources was ksg= 1.005 with an expanded uncertainty of 0.7% for a coverage factor (k = 2). This value has a difference of approximately 0.2% compared to the experimental values.


Asunto(s)
Simulación por Computador , Radioisótopos de Iridio , Radiometría , Calibración , Radiometría/métodos , Radioisótopos de Iridio/uso terapéutico , Humanos , Aire , Aluminio , Método de Montecarlo , Dosis de Radiación , Braquiterapia/métodos , Braquiterapia/normas , Dosificación Radioterapéutica , Dispersión de Radiación
6.
Environ Res ; 249: 118423, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38325786

RESUMEN

Understanding the processes of mobility and availability of potentially toxic elements in soil is crucial for informed decision-making in the development of public policies aimed at minimizing environmental impacts. Monitoring, in combination with the determination of natural concentrations, can provide effective tools for controlling pollution sources. In this study, enrichment, pollution, and ecological risk indices were used for some potentially toxic elements in an anthropogenically influenced watershed in southwestern Bahia, Brazil. The study involved 63 composite surface soil samples collected from areas with natural forest, crops, pastures, and urbanization. The samples were analyzed for fertility and particle size. Metal extraction followed the EPA 3051A method, and element determination was carried out via ICP-OES. The soils in the Verruga River watershed exhibit a high variability in fertility and granulometric attributes. The Kruskal-Wallis test at a 5% significance level was employed to assess the impact of land management on the availability of elements (As, Co and Pb), while Spearman's correlation, along with hierarchical clustering analysis, was used to comprehend element dynamics. Geostatistics were applied to identify pollution hotspots. Consequently, it became evident that potentially toxic elements can accumulate in the soil depending on land use and management practices (As, Co, and Pb), as well as the weathering process linked to the type of source material, such as diamictite deposits (Ni and Co). Soils in the Verruga River watershed qualify as having minimal enrichment, low pollution levels, and individual ecological risk concerning Cd. The percentage of samples enriched with Cu, As, Zn, and Cd exceeded 67%, with agricultural activities being the primary source of pollution. Meanwhile, in pasture and urban areas, Co and Pb were notably prominent, respectively.


Asunto(s)
Monitoreo del Ambiente , Contaminantes del Suelo , Brasil , Contaminantes del Suelo/análisis , Medición de Riesgo , Suelo/química , Bosques , Metales Pesados/análisis , Ríos/química
7.
Braz J Otorhinolaryngol ; 90(1): 101338, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37865034

RESUMEN

OBJECTIVE: To measure the average time for the diagnosis and for the therapeutic prescription of Continuous Positive Airway Pressure (CPAP) at a hospital in Botucatu Medical School - State University São Paulo, UNESP. METHOD: A retrospective observational study was carried out by collecting data from the electronic medical records of patients over 18-years of age, who had a diagnostic polysomnography testing scheduled between January and December 2017. RESULT: Of the 347 patients eligible for the study, 94 (27.1%) missed follow-up and 103 (29.7%) had a referral for CPAP use. Until February 2021, only 37 (35.9%) of these patients had already acquired and were using the device, the remaining 66 (64.1%) were waiting or gave up the therapy. The mean value of the waiting time interval between the referral of the diagnostic test and its performance was equivalent to 197 days (6.5 months). The mean time between diagnostic polysomnography and CPAP prescription was 440-days (14.5-months), with a total mean time of 624 days (21-months). CONCLUSION: As in other services, the diagnostic-therapeutic flow proved to be highly inefficient, with a long waiting period, difficult access to treatment and a high dropout rate. These findings highlight the need to establish new patient-centered strategies with measures that speed up the flow and facilitate access to CPAP, in order to reduce the morbidity and mortality associated with this condition. LEVEL OF EVIDENCE: Level 3 - Non-randomized controlled cohort/follow-up study Recommendation B.


Asunto(s)
Apnea Obstructiva del Sueño , Humanos , Brasil , Presión de las Vías Aéreas Positiva Contínua , Estudios de Seguimiento , Polisomnografía , Apnea Obstructiva del Sueño/diagnóstico , Apnea Obstructiva del Sueño/terapia , Apnea Obstructiva del Sueño/complicaciones , Estudios Retrospectivos
8.
J Dent ; 140: 104794, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-38035453

RESUMEN

OBJECTIVES: To evaluate if tooth color alteration of activated charcoal-based dentifrices may be attributed to the dye adsorption potential of charcoal (chemical action - C - slurry only) or to the association of dye adsorption with abrasion (chemo-mechanical action - CM- slurry/toothbrushing). Potential adverse effects in surface roughness, gloss, and wear were also assessed. METHODS: Bovine enamel/dentin specimens were randomly allocated into the groups according to treatments and test model (n = 15): deionized water (negative control- NC); Colgate Maximum Anticaries Protection (conventional toothpaste- positive control- PC); Colgate Luminous White Activated Charcoal (LW); Oral-B 3D White Therapy Charcoal (WT); Curaprox Black is White (BW); Dermavita Whitemax (Activated charcoal powder- WP). Specimens were exposed to the C or CM models, in 28-day staining-treatment cycling. Color change (ΔE00), whiteness index (ΔWID), percentage of alteration of surface roughness (%Raalt), and gloss (%GUalt) were calculated. Additional specimens (n = 9) were indented with a Knoop diamond and subjected to 100,000 abrasion cycles. Enamel wear was determined by calculating the decrease in indentations geometry. Data were analyzed by ANOVA/Tukey tests (α = 0.05). RESULTS: The CM-model produced lower color change (staining) than C (p = 0.0001). PC, LW, WT, BW, and WP showed similar color results for both models, differing from NC (p < 0.05).%Ra and%GU did not differ among the C-model groups (p > 0.05) and WP exhibited the highest variation (%Ra and%GU) under CM-model. Enamel wear values were lowest in the NC and PC groups, intermediate for LW, WT, BW, and highest for the WP (p < 0.05). CONCLUSION: Activated charcoal-based dentifrices have a similar ability to minimize tooth staining as the conventional toothpaste, with increased enamel wear potential in the long term (after 100,000 cycles). The activated charcoal powder damaged the enamel surface, showing a higher deleterious effect on enamel roughness, gloss, and wear. CLINICAL SIGNIFICANCE: Dentifrices containing activated charcoal do not provide superior results to minimize tooth staining compared to conventional toothpaste. Charcoal powder should be used with caution because it promotes higher superficial alterations on the enamel surface.


Asunto(s)
Dentífricos , Pastas de Dientes , Bovinos , Animales , Carbón Orgánico , Colorantes , Polvos , Cepillado Dental
9.
Trab. Educ. Saúde (Online) ; 22: e02368235, 2024. tab
Artículo en Portugués | LILACS | ID: biblio-1536916

RESUMEN

RESUMO: A automedicação expõe os indivíduos a riscos como reações adversas, intoxicações, interações medicamentosas, falhas terapêuticas e erros de medicação. Na pandemia de Covid-19, houve aumento de compra e consumo de produtos farmacêuticos pelos brasileiros. O presente estudo teve como objetivo estimar a prevalência e os fatores associados à automedicação em estudantes de um centro universitário na região do Campo das Vertentes, Minas Gerais, bem como avaliar a incidência durante a pandemia de Covid-19. O estudo teve delineamento transversal e quantitativo, com 248 estudantes de um centro universitário em 2021. Os achados mostraram que 67,3% dos participantes relataram realizar a automedicação; 28,7% apontaram aumento da automedicação durante a pandemia; e 30,9% indicaram o início nesse período. Houve diferença significativa sobre: considerar-se capaz de se automedicar, ter costume de indicar medicamentos para outras pessoas e consumi-los por indicação de outros. Para aqueles que aumentaram a prática de automedicação na pandemia, houve associação com o hábito de indicar medicamentos para outras pessoas. Já para quem iniciou essa prática no período pandêmico, a capacidade de automedicação esteve associada. Os resultados abrem caminhos para medidas educativas sobre o uso irracional dos medicamentos pelos estudantes do ensino superior, independentemente da área de formação.


ABSTRACT: Self-medication exposes individuals to risks such as adverse reactions, intoxications, drug interactions, therapeutic failures and medication errors. In the COVID-19 pandemic, there was an increase in the purchase and consumption of pharmaceutical products by Brazilians. The present study aimed to estimate the prevalence and factors associated with self-medication in students of a university center in the region of Campo das Vertentes, Southeastern Brazil, as well as to evaluate the incidence during the COVID-19 pandemic. The study had a cross-sectional and quantitative design, with 248 students from a university, in 2021. The findings showed that 67.3% of the participants reported self-medication; 28.7% indicated an increase in self-medication during the pandemic; and 30.9% indicated the beginning in this period. There was a significant difference about: to consider oneself capable of self-medicating, to have the habit of referring drugs to other people and to consume them by indication of others. For those who increased the practice of self-medication in the pandemic, there was an association with the habit of indicating drugs to other people. For those who initiated this practice in the pandemic period, the capacity of self-medication was associated. The results open paths for educational measures on the irrational use of medicines by higher education students, regardless of the education area.


RESUMEN: La automedicación expone a los individuos a riesgos tales como reacciones adversas, intoxicaciones, interacciones medicamentosas, fracasos terapéuticos y errores medicamentosos. En la pandemia de Covid-19, hubo un aumento en la compra y consumo de productos farmacéuticos por parte de los brasileños. El presente estudio tuvo como objetivo estimar la prevalencia y los factores asociados a la automedicación en estudiantes de un centro universitario en la región de Campo das Vertentes, Sudeste de Brasil, así como evaluar la incidencia durante la pandemia de Covid-19. El estudio tuvo un diseño transversal y cuantitativo, con 248 estudiantes de un centro universitario en 2021. Los hallazgos mostraron que el 67,3% de los participantes reportaron automedicación; el 28,7% indicó un aumento en la automedicación durante la pandemia; y el 30,9% indicó el inicio en este período. Hubo una diferencia significativa en: Considerarse capaz de automedicarse, tener el hábito de referir drogas a otras personas y consumirlas por indicación de otros. Para aquellos que incrementaron la práctica de la automedicación en la pandemia, hubo una asociación con el hábito de indicar drogas a otras personas. Para aquellos que iniciaron esta práctica en el período pandémico, se asoció la capacidad de automedicación. Los resultados abren caminos para medidas educativas sobre el uso irracional de medicamentos por parte de los estudiantes de educación superior, independientemente del área de formación.


Asunto(s)
Humanos
10.
Braz. j. otorhinolaryngol. (Impr.) ; 90(1): 101338, 2024. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1534085

RESUMEN

Abstract Objective To measure the average time for the diagnosis and for the therapeutic prescription of Continuous Positive Airway Pressure (CPAP) at a hospital in Botucatu Medical School - State University São Paulo, UNESP. Method A retrospective observational study was carried out by collecting data from the electronic medical records of patients over 18-years of age, who had a diagnostic polysomnography testing scheduled between January and December 2017. Result Of the 347 patients eligible for the study, 94 (27.1%) missed follow-up and 103 (29.7%) had a referral for CPAP use. Until February 2021, only 37 (35.9%) of these patients had already acquired and were using the device, the remaining 66 (64.1%) were waiting or gave up the therapy. The mean value of the waiting time interval between the referral of the diagnostic test and its performance was equivalent to 197 days (6.5 months). The mean time between diagnostic polysomnography and CPAP prescription was 440-days (14.5-months), with a total mean time of 624 days (21-months). Conclusion As in other services, the diagnostic-therapeutic flow proved to be highly inefficient, with a long waiting period, difficult access to treatment and a high dropout rate. These findings highlight the need to establish new patient-centered strategies with measures that speed up the flow and facilitate access to CPAP, in order to reduce the morbidity and mortality associated with this condition. Level of evidence Level 3 - Non-randomized controlled cohort/follow-up study Recommendation B.

11.
Antibiotics (Basel) ; 12(12)2023 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-38136720

RESUMEN

Surface-active compounds (SACs) of microbial origin are an active group of biomolecules with potential use in the formulation of emulsions. In this sense, the present study aimed to isolate and select yeasts from fruits that could produce SACs for essential oil emulsions. The Candida krusei M4CK was isolated from the Byrsonima crassifolia fruit to make SACs. This emulsification activity (E24) was equal to or greater 50% in all carbon sources, such as olive oil, sunflower oil, kerosene, hexane, and hexadecane. E24 followed exponential growth according to the growth phase. The stability of emulsions was maintained over a wide range of temperatures, pH, and salinity. The OMBE4CK (melaleuca essential oil emulsion) had better and more significant inhibitory potential for biofilm reduction formation. In addition, bioemulsifier BE4CK alone on Escherichia coli and Pseudomonas aeruginosa biofilm showed few effective results, while there was a significant eradication for Staphylococcus aureus biofilms. The biofilms formed by S. aureus were eradicated in all concentrations of OMBE4CK. At the same time, the preformed biofilm by E. coli and P. aeruginosa were removed entirely at concentrations of 25 mg/mL, 12.5 mg/mL, and 6.25 mg/mL. The results show that the bioemulsifier BE4CK may represent a new potential for antibiofilm application.

12.
Parasitol Res ; 123(1): 64, 2023 Dec 20.
Artículo en Inglés | MEDLINE | ID: mdl-38117414

RESUMEN

This study aimed to investigate the effect of rosuvastatin treatment on anxiety-related behavior and short- and long-term memory impairment in mice infected with acute RH and BRI strains of Toxoplasma gondii. Balb/C mice were infected intraperitoneally and after 2 h, oral treatment with rosuvastatin (40 mg/kg/day) was initiated for 4 days. Behaviors related to anxiety and locomotion were evaluated in the open field (OF), and short- and long-term memory through the novel object recognition test (NOR). At the end of the experiments, peritoneal fluid, brain, liver, and lung were collected for T. gondii DNA quantification and histopathological analysis. Infection with BRI strain reduced the dwell time and central locomotion in the OF (p < 0.05), indicating anxiogenic type behavior, while treatment with rosuvastatin reversed this response (p < 0.05). RH strain infection did not alter any behavior in the OF (p > 0.05) and both strains impaired short- and long-term memory (NOR test), but with no significant treatment effect (p > 0.05). The BRI strain was shown to be more damaging in relation to anxiogenic type behavior when compared to the RH strain (p < 0.05), whereas rosuvastatin reduced this damaging effect in BRI. The treatment reduced the parasite load in the peritoneal lavage, liver, and lung of animals infected with both acute strains; however, it significantly (p < 0.05) attenuated the inflammatory process only in BRI-infected and treated animals, showing that non-archetypal genotypes are more damaging in rodents. This suggests that rosuvastatin may be a drug with great therapeutic potential against T. gondii mainly to reduce damage from virulent strains.


Asunto(s)
Toxoplasma , Animales , Ratones , Rosuvastatina Cálcica/uso terapéutico , Brasil , Inflamación/tratamiento farmacológico , Ratones Endogámicos BALB C
13.
Arq Bras Cardiol ; 120(11): e20220822, 2023 11.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-37991119

RESUMEN

BACKGROUND: Anabolic androgenic steroid (AAS) abuse has been associated with coronary artery disease (CAD). Pericoronary fat attenuation (pFA) is a marker of coronary inflammation, which is key in the atherosclerotic process. OBJECTIVE: To evaluate pFA and inflammatory profile in AAS users. METHODS: Twenty strength-trained AAS users (AASU), 20 AAS nonusers (AASNU), and 10 sedentary controls (SC) were evaluated. Coronary inflammation was evaluated by mean pericoronary fat attenuation (mPFA) in the right coronary artery (RCA), left anterior descending coronary artery (LAD), and left circumflex (LCx). Interleukin (IL)-1 (IL-1), IL-6, IL-10, and TNF-alpha were evaluated by optical density (OD) in a spectrophotometer with a 450 nm filter. P<0.05 indicated statistical significance. RESULTS: AASU had higher mPFA in the RCA (-65.87 [70.51-60.70] vs. -78.07 [83.66-72.87] vs.-78.46 [85.41-71.99] Hounsfield Units (HU), respectively, p<0.001) and mPFA in the LAD (-71.47 [76.40-66.61] vs. -79.32 [84.37-74.59] vs. -82.52 [88.44-75.81] HU, respectively, p=0.006) compared with AASNU and SC. mPFA in the LCx was not different between AASU, AASNU, and SC (-72.41 [77.17-70.37] vs. -80.13 [86.22-72.23] vs. -78.29 [80.63-72.29] HU, respectively, p=0.163). AASU compared with AASNU and SC, had higher IL-1, (0.975 [0.847-1.250] vs. 0.437 [0.311-0.565] vs. 0.530 [0.402-0.780] OD, respectively, p=0.002), IL-6 (1.195 [0.947-1.405] vs. 0.427 [0.377-0.577] vs. 0.605 [0.332-0.950] OD, p=0.005) and IL-10 (1.145 [0.920-1.292] vs. 0.477 [0.382-0.591] vs. 0.340 [0.316-0.560] OD, p<0.001). TNF-α was not different between the AASU, AASNU, and SC groups (0.520 [0.250-0.610] vs. 0.377 [0.261-0.548] vs. 0.350 [0.182-430]), respectively. CONCLUSION: Compared with ASSNU and controls, AASU have higher mPFA and higher systemic inflammatory cytokines profile suggesting that AAS may induce coronary atherosclerosis through coronary and systemic inflammation.


FUNDAMENTO: O uso abusivo de esteroides anabólicos androgênicos (EAA) tem sido associado à doença arterial coronariana (DAC). A atenuação de gordura pericoronária (AGp) é um marcador de inflamação coronária, a qual exerce um papel chave no processo aterosclerótico. OBJETIVO: Avaliar AGp e perfil inflamatório em usuários de EAA. MÉTODO: Vinte indivíduos que realizavam treinamento de força, usuários de EAA (UEAA), 20 não usuários de EAA (NUEAA), e 10 indivíduos sedentários controle (SC) foram avaliados. Inflamação coronária foi avaliada por atenuação de gordura pericoronária média (AGPm) artéria coronária direita (ACD), artéria descendente anterior esquerda (ADA) e artéria circunflexa (ACX). Interleucina (IL)-1 (IL-1), IL-6, IL-10, e TNF-alfa foram avaliados por densidade ótica (DO) em um espectrofotômetro com um filtro de 450 nm. Um p<0,05 indicou significância estatística. RESULTADOS: Os UEAA apresentaram maior AGPm na ACD [-65,87 (70,51-60,70) vs. -78,07 (83,66-72,87) vs.-78,46 (85,41-71,99] unidades Hounsfield (HU), respectivamente, p<0,001) e AGPm na ADA [-71,47 (76,40-66,610 vs. -79,32 (84,37-74,59) vs. -82,52 (88,44-75,81) HU, respectivamente, p=0,006) em comparação aos NUEAA e CS. A AGPm na ACX não foi diferente entre os grupos UEAA, NUEAA e CS [-72,41 (77,17-70,37) vs. -80,13 (86,22-72,23) vs. -78,29 (80,63-72,29) HU, respectivamente, p=0,163). Em comparação aos NUEAA e aos CS, o grupo UEAA apresentaram maiores níveis de IL-1 [0,975 (0,847-1,250) vs. 0,437 (0,311-0,565) vs. 0,530 (0,402-0,780) DO, respectivamente, p=0,002), IL-6 [1,195 (0,947-1,405) vs. 0,427 (0,377-0,577) vs. 0,605 (0,332-0,950) DO, p=0,005) e IL-10 [1,145 (0,920-1,292) vs. 0,477 (0,382-0,591) vs. 0,340 (0,316-0,560) DO, p<0,001]. TNF-α não foi diferente entre os grupos UEAA, NUEAA e CS [0,520 (0,250-0,610) vs. 0,377 (0.261-0,548) vs. 0,350 (0,182-430)]. CONCLUSÃO: Em comparação aos NUEAA e controles, os UEAA apresentam maior AGPm e maior perfil de citocinas inflamatórias sistêmicas, sugerindo que os EAA podem induzir aterosclerose por inflamação coronária e sistêmica.


Asunto(s)
Esteroides Anabólicos Androgénicos , Enfermedad de la Arteria Coronaria , Humanos , Masculino , Interleucina-10 , Angiografía Coronaria/métodos , Interleucina-6 , Tomografía Computarizada por Rayos X , Enfermedad de la Arteria Coronaria/inducido químicamente , Enfermedad de la Arteria Coronaria/diagnóstico por imagen , Inflamación/inducido químicamente , Inflamación/diagnóstico por imagen , Interleucina-1 , Vasos Coronarios , Angiografía por Tomografía Computarizada , Tejido Adiposo
14.
Chronobiol Int ; 40(12): 1523-1528, 2023 12 02.
Artículo en Inglés | MEDLINE | ID: mdl-37985469

RESUMEN

The objective of this study was to assess the value of the abnormal circadian blood pressure pattern by ambulatory blood pressure monitoring (ABPM) to predict the onset of abnormal albuminuria in normotensive and normoalbuminuric DM1 patients. The participators were submitted to ABPM and followed prospectively until the onset of albuminuria or the end of follow-up. The patients with normal circadian blood pressure pattern were compared with the non-dippers in regard of the time interval free of albuminuria. The survival curves were evaluated by the Kaplan-Meier method. Of 34 patients screened, 10 patients matched the exclusion criteria. Therefore, 24 patients were submitted to ABPM, aged 24 ± 8.3 y, 18 men, and all Caucasian. Elevated levels of albuminuria did not occurin any individual with normal systolic blood pressure dip (>10%) at 54 months of follow-up. Only 22% of patients among non-dippers were free of albuminuria (<30 mg/g maintained for 3 months) at the same time (p = 0.049). Patients that reached the outcome were homogeneous in regard to other clinical and ABPM data evaluated. Abnormal systolic blood pressure circadian pattern predicts the evolution to incipient nephropathy in normotensive normoalbuminuric DM1 patients.


Asunto(s)
Diabetes Mellitus Tipo 1 , Hipertensión , Enfermedades Renales , Masculino , Humanos , Presión Sanguínea/fisiología , Albuminuria , Monitoreo Ambulatorio de la Presión Arterial , Ritmo Circadiano/fisiología
15.
Medicina (Ribeirao Preto, Online) ; 56(3)nov. 2023. tab, ilus
Artículo en Inglés | LILACS | ID: biblio-1551202

RESUMEN

Objective: Correlate inflammatory mediators and biochemical parameters in patients with active pulmonary tuberculosis (TB) treated at a public hospital in São Luís, MA. Methods: This is a case-control study of patients with a positive diagnosis of active pulmonary TB. Serum samples from patients and the control group were collected for the clinical trials, and epidemiological data were collected through medical records and interviews. The control group consisted of healthy volunteers with no previous contact with TB cases, matched by age and sex to the clinical group. To measure inflammatory cytokines, we used the Human IL-6 ELISA Set and Human IFN-γ ELISA Set kits. Oxidative stress was measured by quantification of thiobarbituric acid reactive substances (TBARS) and nitric oxide (NO). In biochemistry, the levels of uric acid, antistreptolysin "O" (AEO), alanine aminotransferase (ALT), amylase, aspartate aminotransferase (AST), calcium, total cholesterol, gamma-glutamyl transferase (Gamma GT), glucose, alkaline phosphatase, high-density lipoprotein (HDL), C-reactive protein (CRP) and triglycerides were measured. Results: The clinical group consisted of 53 patients. There was a substantial decrease in IFN-γ (p<0.0001) and a significant increase in IL-6 (p<0.0001). TBARS production increased significantly (p= 0.0414). There was no significant difference in NO production (p= 0.3194). In biochemistry, there was a significant increase in ALT (p= 0.0072), AST (p= 0.0016), Gamma GT (p= 0.0011), alkaline phosphatase (p<0.0001), CRP (p<0. .0001) and triglycerides (p= 0.0343), and a significant decrease in calcium (p<0.0001). A significant positive correlation was found between IL-6 and IFN-γ (p= 0.0448), as well as AST and ALT (p<0.0001); CRP and gamma GT (p<0.0001); Gamma GT and ALT (p= 0.0016); Gamma GT and AST (p=0.0004); triglycerides and cholesterol (p= 0.0002); alkaline phosphatase and gamma GT (p<0.0001); CRP and alkaline phosphatase (p<0.0001); triglycerides and calcium (p= 0.0121); cholesterol and calcium (p= 0.0261); glucose and cholesterol (p= 0.0373); and triglycerides and glucose (p= 0.0127) in biochemistry, with a significant negative correlation between glucose and uric acid (p= 0.0092); and CRP and HDL (p=0.0037). The correlation between inflammatory mediators and biochemical markers was positive between IL-6 and gamma GT (p= 0.0011); IL-6 and CRP (p<0.0001); IL-6 and alkaline phosphatase (p=0.0076); and NO and triglycerides (p= 0.0016), and significant negative correlation between IFN-γ and cholesterol (p= 0.0171) and TBARS and cholesterol (p= 0.0138). Conclusion: Immunosuppression of IFN-γ activity was observed. A correlation was found between IL-6 and inflammatory biochemical markers, indicating damage and injury caused by M. tuberculosis (AU).


Objetivo: Correlacionar mediadores inflamatórios e parâmetros bioquímicos em pacientes com tuberculose (TB) pulmonar ativa atendidos em um hospital público, em São Luís, MA. Métodos: Trata-se um caso-controle de pacientes com diagnóstico positivo para TB pulmonar ativa. Amostras de soro dos pacientes e grupo controle foram coletadas para os experimentos clínicos e os dados epidemiológicos foram coletados por meio de prontuários e entrevistas. O grupo controle foi formado por voluntários saudáveis sem contato prévio com casos de TB, pareados com idade e sexo ao grupo clínico. Para dosar citocinas inflamatórias, utilizaram-se os kits Human IL-6 ELISA Set e Human IFN-γ ELISA Set. Mediu-se o estresse oxidativo pela quantificação das espécies reativas do ácido tiobarbitúrico (TBARS) e óxido nítrico (ON). Na bioquímica, mediram-se os níveis de ácido úrico, anti-estreptolisina-O (AEO), alanina aminotransferase (ALT), amilase, aspartato aminotransferase (AST), cálcio, colesterol total, gama glutamil transferase (Gama GT), glicose, fosfatase alcalina, lipoproteína de alta densidade (HDL), proteína C reativa (PCR) e triglicerídeos. A análise estatística foi realizada pelo software Graph Pad Prism 8, com p<0,05 significativo. Re -sultados: O grupo clínico foi formado por 53 pacientes. Houve uma diminuição significativa de IFN-γ (p<0,0001), e aumento significativo de IL-6 (p<0,0001). A produção de TBARS aumentou significativamente (p= 0,0414). Não houve diferença significativa na produção de ON (p= 0,3194). Na bioquímica, houve aumento significativo em ALT (p= 0,0072), AST (p= 0,0016), gama GT (p= 0,0011), fosfatase alcalina (p<0,0001), PCR (p<0,0001) e triglice-rídeos (p= 0,0343), e diminuição significativa de cálcio (p<0,0001). Encontrou-se correlação positiva significativa entre IL-6 e IFN-γ (p= 0,0448), assim como AST e ALT (p<0,0001); PCR e gama GT (p<0,0001); gama GT e ALT (p= 0,0016); gama GT e AST (p= 0,0004); triglicerídeos e colesterol (p= 0,0002); fosfatase alcalina e gama GT (p<0,0001); PCR e fosfatase alcalina (p<0,0001); triglicerídeos e cálcio (p= 0,0121); colesterol e cálcio (p= 0,0261); glicose e colesterol (p= 0,0373); e triglicerídeos e glicose (p= 0,0127) na bioquímica, sendo negativa significativa entre glicose e ácido úrico (p= 0,0092); e PCR e HDL (p= 0,0037). A correlação entre marcadores infla-matório e bioquímicos foi positiva entre IL-6 e gama GT (p= 0,0011); IL-6 e PCR (p<0,0001); IL-6 e fosfatase alcalina (p= 0,0076); e ON e triglicerídeos (p= 0,0016), e negativa significativa entre IFN-γ e colesterol (p= 0,0171) e TBARS e colesterol (p= 0,0138). Conclusões: Observou-se imunossupressão da atividade de IFN-γ. Encontrou-se correlação entre IL-6 e marcadores bioquímicos inflamatórios, indicando dano e lesão causados por M. tuberculosis (AU).


Asunto(s)
Humanos , Masculino , Femenino , Bioquímica , Citocinas , Mediadores de Inflamación
16.
Saude e pesqui. (Impr.) ; 16(4): 11414, out./dez. 2023.
Artículo en Inglés, Portugués | LILACS-Express | LILACS | ID: biblio-1518412

RESUMEN

O objetivo deste trabalho foi avaliar o nível de conhecimento de fisioterapeutas que atuam nos serviços públicos e privados de reabilitação pediátrica sobre o conhecimento das F-Words, assim como identificar as principais barreiras de aplicação destas ferramentas na assistência. Trata-se de um estudo transversal, conduzido de acordo com as recomendações do STROBE. A amostra apresentou uma média etária de 28,1 ± 5,8 anos, constituída por 54 fisioterapeutas que atuam nos serviços públicos e privados de reabilitação pediátrica. Foi observado que 55,6% da amostra já ouviram falar nas F-Words; 44,4% não sabiam sobre a importância; 94,4% estabelecem metas terapêuticas em parceria com a família; 57,4% nunca ouviram falar nas F-Words Tools; 77,8% nunca aplicaram essas ferramentas na assistência. Conclui-se que, as F-Words são importantes, mas são pouco utilizadas na assistência em decorrência da falta de conhecimento dos fisioterapeutas em relação à ferramenta e aos instrumentos.


The aim of this study was to assess the level of knowledge of physiotherapists who work in public and private pediatric rehabilitation services about knowledge of F-Words, as well as to identify the main barriers to applying these tools in care. This is a cross-sectional study, conducted in accordance with the STROBE recommendations. The sample had a mean age of 28.1 ± 5.8 years, consisting of 54 physiotherapists who work in public and private pediatric rehabilitation services. It was observed that 55.6% of the sample had already heard about F-Words; 44.4% did not know about the importance; 94.4% establish therapeutic goals in partnership with the family; 57.4% had never heard of F-Words Tools; 77.8% never applied these tools in care. It is concluded that the F-Words are important, but are little used in assistance due to the lack of knowledge of physiotherapists in relation to the tool and instruments.

17.
Pharmaceuticals (Basel) ; 16(8)2023 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-37631027

RESUMEN

This study aimed to evaluate the potential of lactic acid bacteria (LAB) in developing alginate-based gel formulations to inhibit Staphylococcus aureus. Initially, the antagonistic actions of three lactic acid bacteria (LAB) (Lacticaseibacillus rhamnosus ATCC 10863, Lactiplantibacillus plantarum ATCC 14917, Limosilactobacillus fermentum ATCC 23271) were evaluated against S. aureus ATCC 25923. All tested LAB inhibited S. aureus, but the highest activity was observed for L. plantarum ATCC 14917 (p < 0.05). The antimicrobial effects of L. plantarum ATCC 14917 cell suspensions, sonicate cells extract, and cell-free supernatants (pH 5 or 7) were analyzed using a broth-based assay. The cell suspensions inhibited S. aureus at concentrations ≥ 10%, and these effects were confirmed by a time-kill assay. Alginate-based gels were formulated with cell suspensions, sonicate cells extract, and cell-free supernatant (pH 5). These formulations inhibited S. aureus growth. Based on the results, the alginate gel with cell suspensions at 10% was selected for further characterization. L. plantarum ATCC 14917 survived in the alginate-based gel, especially when stored at 5 °C. At this temperature, the L. plantarum-containing alginate gel was stable, and it was in compliance with microbiological standards. These findings suggest it can be a promising agent for the topical treatment of infections induced by S. aureus.

18.
Funct Integr Genomics ; 23(3): 288, 2023 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-37653266

RESUMEN

A Staphylococcus aureus isolate (SA01) obtained from bloodstream infection exhibited a remarkable drug resistance profile. In this study, we report the draft genome sequence of S. aureus ST 5 SA01, a multidrug-resistant isolate, and analyzed the genes associated with drug resistance and virulence. The genome sketch of S. aureus ST5 SA01 was sequenced with Illumina and annotated using the Prokka software. Rapid Annotation Subsystem Technology (RAST) was used to verify the gene functions in the genome subsystems. The Comprehensive Antibiotic Resistance Database (CARD) and Virulence Factor Database (VFDB) were used in the analysis. The RAST indicated a contribution of 25 proteins to host adenine, fibronectin-binding protein A (FnbA), and biofilm formation as an intercellular polysaccharide adhesive system (PIA). The MLST indicated that S. aureus ST 5 SA01 belongs to ST5 (CC5). In silico analyses also showed an extensive repertoire of genes associated with toxins, such as LukGH leukocidin, enterotoxins, and superantigen staphylococcal classes (SSL). The 11 genes for antimicrobial resistance in S. aureus ST 5 SA01 showed similarity and identity above ≥ 99% with nucleotide sequences deposited in GenBank. Although studies on ST5 clones in Brazil are scarce, monitoring the clone of S. aureus ST 5 SA01 is essential, as it has become a problem in pediatrics in several countries.


Asunto(s)
Sepsis , Staphylococcus aureus , Niño , Humanos , Staphylococcus aureus/genética , Tipificación de Secuencias Multilocus , Programas Informáticos
20.
Braz J Anesthesiol ; 2023 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-37562649

RESUMEN

BACKGROUND: There are few studies related to Coronavirus Disease 2019 (COVID-19) on the prevalence and nature of pain symptoms after hospital discharge, especially in individuals who develop moderate to severe disease forms. Therefore, this study aimed to evaluate the presence of chronic pain in patients discharged after hospitalization for COVID-19, and the relationship between the presence of chronic pain and intensive care stay, demographics, and risk factors for the worst Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) outcome. METHODS: A cross-sectional observational study was carried out on patients with COVID-19 who recovered after hospitalization. Patients were recruited at the least 3 months after discharge and their hospital's health files were prospected. The variables evaluated were demographics, the severity of SARS-CoV-2 infection (considering the need for intensive care), and the presence of chronic pain. The results were shown in a descriptive manner, and multivariate analysis expressed as Odds Ratios (ORs) and respective Confidence Intervals (CIs) for the outcomes studied. Statistical significance was set at p < 0.05. RESULTS: Of 242 individuals included, 77 (31.8%) reported chronic pain related to COVID-19, with no correlation with the severity of infection. Female sex and obesity were associated with a higher risk for chronic pain with ORs of 2.69 (Confidence Interval [95% CI 1.4 to 5.0]) and 3.02 (95% CI 1.5 to 5.9). The limbs were the most affected areas of the body. CONCLUSION: Chronic pain is common among COVID-19 survivors treated in hospital environments. Female sex and obesity are risk factors for its occurrence.

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