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1.
Rhinology ; 62(1): 101-110, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-37864409

RESUMO

BACKGROUND: Inhibitors of apoptosis proteins (IAPs) modulate the inflammatory process, and may facilitate the formation of chronic rhinosinusitis with nasal polyps (CRSwNP). This study aimed to observe if IAPs were differently expressed between patients with CRSwNP and controls, and to correlate the expression of IAPs with some inflammatory markers, as with the response to nasal corticosteroids in patients with CRSwNP. METHODOLOGY: We obtained nasal biopsies from patients with CRSwNP (n=27) and controls (n=16). qRT-PCR measured the expression of IAPs and caspases, while Luminex assay measured the concentration of cytokines. Unpaired parametric tests and Principal Component Analysis (PCA) were used for statistical analysis. RESULTS: We observed lower expression of IAP genes (XIAP, BIRC2/IAP1, and BIRC3/IAP2) in CRSwNP patients compared to controls, and we identified that patients with bad response to corticosteroids presented lower levels of BIRC2/IAP1, XIAP, BCL2, CASP9, and IL-17, and higher levels of CASP7 and TGF-B. CONCLUSIONS: IAPs expression was downregulated in CRSwNP, and was associated with poorer response to nasal corticosteroids. The present findings suggest the importance of IAPs as a link between environment and the host inflammatory responses, and this pathway could be explored as a potential new target therapy for patients with CRSwNP.


Assuntos
Pólipos Nasais , Rinite , Rinossinusite , Sinusite , Humanos , Pólipos Nasais/complicações , Pólipos Nasais/tratamento farmacológico , Pólipos Nasais/genética , Citocinas/metabolismo , Sinusite/complicações , Sinusite/tratamento farmacológico , Sinusite/metabolismo , Apoptose , Corticosteroides , Doença Crônica , Rinite/complicações , Rinite/tratamento farmacológico , Rinite/metabolismo
2.
Rhinology ; 62(1): 55-62, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-37772802

RESUMO

BACKGROUND: Although the COVID-19 pandemic has increased the prevalence of cases with olfactory loss, other respiratory viruses can also cause this condition. We aimed to compare the prevalence of acute SARS-CoV-2 infection and other respiratory viruses in patients with sudden smell loss, and to assess the impact of SARS-CoV-2 viral load and co-infection on olfactory symptoms. METHODS: Patients with sudden smell loss were recruited in a multicenter prospective cohort study in 15 hospitals in Brazil. Clinical questionnaire, Connecticut Chemosensory Clinical Research Center (CCCRC) olfactory test and nasopharyngeal swab to perform a PCR-based respiratory viral panel were collected at first visit (day 0) and 30 and 60 days after recruitment. RESULTS: 188 of 213 patients presented positive test result for SARS-CoV-2, among which 65 were co-infected with other respiratory viruses (e.g., rhinovirus, enterovirus, and parainfluenza). 25 had negative test results for SARS-CoV-2. Patients in both SARSCoV-2 and non-SARS-CoV-2 groups had objective anosmia (less than 2 points according to the psychophysical olfactory CCCRC) at day 0, with no significant difference between them. Both groups had significant smell scores improvement after 30 and 60 days, with no difference between them. Co-infection with other respiratory viruses, and SARS-CoV-2 viral load did not impact olfactory scores. CONCLUSION: Patients with sudden smell loss associated with SARS-CoV-2 and other respiratory viruses had similar presentation, with most participants initiating with anosmia, and total or near total recovery after 60 days. SARS-CoV-2 viral load and co-infections with other respiratory viruses were not associated with poorer olfactory outcomes.


Assuntos
COVID-19 , Coinfecção , Transtornos do Olfato , Humanos , SARS-CoV-2 , COVID-19/complicações , Anosmia/complicações , Anosmia/epidemiologia , Estudos Prospectivos , Pandemias , Coinfecção/complicações , Coinfecção/epidemiologia , Transtornos do Olfato/diagnóstico , Transtornos do Olfato/epidemiologia , Transtornos do Olfato/etiologia , Olfato
3.
Radiol Bras ; 56(4): 202-206, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37829587

RESUMO

Objective: To describe cases of parafoveal chondral lesion of the femoral head in patients with femoroacetabular impingement, correlating the clinical and imaging data. Materials and Methods: This was a retrospective descriptive case series of parafoveal chondral lesion of the femoral head in 21 patients who underwent computed tomography and magnetic resonance arthrography scans of the hip, having then received an imaging-based diagnosis of femoroacetabular impingement. Results: Of the 21 patients evaluated, 15 (71%) had cam-type femoroacetabular impingement, whereas five (24%) had mixed-type impingement, and one (5%) had pincer-type impingement. Twelve patients (57%) had a low frequency of physical activity, which was significantly associated with the presence of cam-type impingement (p = 0.015). Although the extent of the lesion correlated significantly with the acetabular coverage angle (p = 0.04), it did not correlate significantly with the alpha angle or femoral head-neck offset value (p = 0.08 and p = 0.06, respectively). We also found no correlation between the extent of the lesion and the other main parameters that define the femoroacetabular impingement types. Conclusion: This was one of the largest case series of parafoveal chondral lesion of the femoral head in patients with imaging findings of femoroacetabular impingement. The extent of such lesions does not appear to correlate with the parameters of femoroacetabular impingement, with the exception of the acetabular coverage angle.


Objetivo: Descrever casos de lesão condral parafoveal da cabeça femoral em pacientes com impacto femoroacetabular, correlacionando dados clínicos e de imagem. Materiais e Métodos: Esta foi uma série de casos descritiva retrospectiva de lesão condral parafoveal da cabeça femoral em 21 pacientes submetidos a tomografia computadorizada e artrorressonância magnética do quadril e que receberam diagnóstico por imagem de impacto femoroacetabular. Resultados: Dos 21 pacientes avaliados, 15 (71%) tiveram impacto femoroacetabular do tipo cam, enquanto cinco (24%) tiveram impacto do tipo misto e um (5%) teve impacto do tipo pincer. Doze pacientes (57%) apresentaram baixa frequência de atividade física, sendo esta significativamente associada a impacto do tipo cam (p = 0,015). Houve correlação significativa entre a extensão da lesão e o ângulo de cobertura acetabular (p = 0,04), porém, não se correlacionou significativamente com o ângulo alfa ou com o valor do deslocamento cabeça-colo femoral (p = 0,08 e p = 0,06, respectivamente). Também não encontramos correlação entre a extensão da lesão e os outros principais parâmetros que definem os tipos de impacto femoroacetabular. Conclusão: Esta foi uma das maiores casuísticas de lesão condral parafoveal da cabeça femoral em pacientes com achados de imagem de impacto femoroacetabular. A extensão dessas lesões não parece se correlacionar com os parâmetros do impacto femoroacetabular, com exceção do ângulo de cobertura acetabular.

4.
Inflamm Res ; 72(5): 895-899, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36917217

RESUMO

OBJECTIVE: To evaluate whether colchicine treatment was associated with the inhibition of NLRP3 inflammasome activation in patients with COVID-19. METHODS: We present a post hoc analysis from a double-blinded placebo-controlled randomized clinical trial (RCT) on the effect of colchicine for the treatment of COVID-19. Serum levels of NOD-like receptor protein 3 (NLRP3) inflammasome products-active caspase-1 (Casp1p20), IL-1ß, and IL-18-were assessed at enrollment and after 48-72 h of treatment in patients receiving standard-of-care (SOC) plus placebo vs. those receiving SOC plus colchicine. The colchicine regimen was 0.5 mg tid for 5 days, followed by 0.5 mg bid for another 5 days. RESULTS: Thirty-six patients received SOC plus colchicine, and thirty-six received SOC plus placebo. Colchicine reduced the need for supplemental oxygen and the length of hospitalization. On Days 2-3, colchicine lowered the serum levels of Casp1p20 and IL-18, but not IL-1ß. CONCLUSION: Treatment with colchicine inhibited the activation of the NLRP3 inflammasome, an event triggering the 'cytokine storm' in COVID-19. TRIAL REGISTRATION NUMBERS: RBR-8jyhxh.


Assuntos
COVID-19 , Inflamassomos , Humanos , Inflamassomos/metabolismo , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Interleucina-18 , Proteínas NLR , Colchicina/uso terapêutico , Interleucina-1beta/metabolismo
5.
Ciênc. cuid. saúde ; 22: e62100, 2023.
Artigo em Português | LILACS, BDENF - Enfermagem | ID: biblio-1447919

RESUMO

RESUMO Objetivo: descrever a experiência do uso da simulação em saúde no ensino de graduação em Enfermagem na situação de Hemorragia Pós-Parto. Método: estudo descritivo, do tipo relato de experiência, sobre a aplicação da simulação em saúde no ensino em Enfermagem com base na estratégia - Zero Morte Materna por Hemorragia Pós-Parto (0MMxH) da OPAS/OMS. A simulação foi realizada no primeiro semestre de 2020, com 15 discentes da Disciplina Sexualidade e Reprodução Humana, ministrada no sexto período do Curso de Graduação em Enfermagem de uma Universidade Federal do Centro-Oeste brasileiro. Resultados: o uso da simulação em saúde nesta experiência possibilitou a participação dos alunos de graduação em enfermagem em um cenário de hemorragia pós-parto, promovendo o desenvolvimento profissional por meio de vivência na prática clínica. Conclusão: a inserção de simulação em saúde no ensino promove o desenvolvimento de competências e habilidades importantes para a prática assistencial da enfermagem no contexto do cuidado às mulheres com quadros de hemorragia pós-parto.


RESUMEN Objetivo: describir la experiencia del uso de la simulación en salud en la enseñanza de pregrado en Enfermería en la situación de Hemorragia Postparto. Método: estudio descriptivo, del tipo relato de experiencia, sobre la aplicación de la simulación en salud en la enseñanza en Enfermería con base en la estrategia - Cero Muerte Materna por Hemorragia Postparto (0MMxH) de la OPAS/OMS. La simulación fue realizada en el primer semestre de 2020, con 15 estudiantes de la Asignatura Sexualidad y Reproducción Humana, ministrada en el sexto período del Curso de Pregrado en Enfermería de una Universidad Federal del Centro-Oeste brasileño. Resultados: el uso de la simulación en salud en esta experiencia posibilitó la participación de los alumnos de pregrado en enfermería en un escenario de hemorragia postparto, promoviendo el desarrollo profesional por medio de vivencia en la práctica clínica. Conclusión: la inserción de simulación en salud en la enseñanza promueve el desarrollo de competencias y habilidades importantes para la práctica asistencial de la enfermería en el contexto del cuidado a las mujeres en caso de hemorragia posparto.


ABSTRACT Objective: to describe the experience of using health simulation in undergraduate nursing education in the situation of postpartum hemorrhage. Method: descriptive study of the type experience report on the application of health simulation in nursing education based on the strategy - Zero Maternal Death due to Postpartum Hemorrhage (0MDxH) of PAHO/WHO. The simulation was carried out in the first half of 2020, with 15 students from the Sexuality and Human Reproduction Discipline, taught in the sixth semester of the Undergraduate Course of Nursing at a Federal University of the Midwest of Brazil. Results: the use of health simulation in this experience enabled the participation of undergraduate nursing students in a postpartum hemorrhage scenario, promoting professional development through experience in clinical practice. Conclusion: the inclusion of health simulation in teaching promotes the development of important skills for nursing care practice in the context of care for women with postpartum hemorrhage.


Assuntos
Humanos , Masculino , Feminino , Docentes , Enfermeiras e Enfermeiros
6.
Texto & contexto enferm ; 32: e20230109, 2023. graf
Artigo em Inglês | LILACS-Express | LILACS, BDENF - Enfermagem | ID: biblio-1530555

RESUMO

ABSTRACT Objective: to understand interconnected influences on adolescents' intended pregnancy based on particularities of the affective-relational sphere with partners. Method: this is a qualitative-interpretive study, carried out with 16 pregnant adolescents living in a neighborhood with a low socioeconomic level in a capital in the center-west of Brazil. Data were collected in 2019 through in-depth interviews, with complementary use of self-portrait, relational map and photo-elicitation resources, subjected to thematic content analysis. Results: adolescents' intention-action towards becoming pregnant was based on status assessment and romantic relationship quality with their partners in terms of marriage/union, bond-commitment, partnership-financial protection and good interaction-love. They expressed needs for emotional bonding and material security, psychological particularities of their stage of development, in addition to social representations built on the conjugal and loving relationship and being a man and a woman in the family. Connectedly, it reflected on social conditions and family relationships experienced as well as absorptions of the cultural ideal of romantic and gender love. Conclusion: in adolescents' reproductive health, it is essential to consider the affective influences on being pregnant, without detaching them from their social and family insertions as well as their ways of exercising agency over their affective-sexual trajectories.


RESUMEN Objetivo: comprender influencias interconectadas sobre la intención de embarazo de adolescentes a partir de particularidades del ámbito afectivo-relacional con la pareja. Método: se trata de un estudio cualitativo-interpretativo, realizado con 16 adolescentes embarazadas que viven en un barrio de bajo nivel socioeconómico, en una capital del centro-oeste de Brasil. Los datos fueron recolectados en 2019 a través de entrevistas en profundidad, con uso complementario de recursos de autorretrato, mapa relacional y fotoecitación, sometidos a análisis de contenido temático. Resultados: la intención-acción de las adolescentes para quedar embarazada se basó en la evaluación del estado y la calidad de la relación sentimental con sus parejas en términos de matrimonio/unión, vínculo-compromiso, sociedad-protección financiera y buena interacción-amor. Estos expresaron necesidades de vinculación afectiva y seguridad material que vivieron, particularidades psíquicas de su etapa de desarrollo, además de representaciones sociales construidas sobre la relación conyugal, amorosa y el ser hombre y mujer en la familia. De manera relacionada, reflexionaron sobre las condiciones sociales y las relaciones familiares vividas, así como sobre la absorción del ideal cultural del amor romántico y de género. Conclusión: en la salud reproductiva de las adolescentes, es fundamental considerar las influencias afectivas sobre el embarazo, sin desvincularlas de sus inserciones sociales y familiares, así como de sus formas de ejercer la agencia en sus trayectorias afectivo-sexuales.


RESUMO Objetivo: compreender influências interconexas no engravidar intencionado de adolescentes a partir de particularidades da esfera afetivo-relacional com o parceiro. Método: estudo qualitativo-interpretativo, realizado com 16 adolescentes grávidas residentes em um bairro de baixo nível socioeconômico, em uma capital do centro-oeste brasileiro. Os dados foram coletados em 2019 mediante entrevistas em profundidade, com uso complementar dos recursos autorretrato, mapa relacional e foto-elicitação, submetidos à Análise de Conteúdo Temática. Resultados: a intenção-ação das adolescentes voltada ao engravidar sustentou-se na apreciação do status e da qualidade da relação amorosa com o parceiro quanto aos aspectos casamento/união, vínculo-compromisso, parceria-proteção financeira e boa interação-amor. Estas exprimiram necessidades de vínculo afetivo e de segurança material por elas vividas, particularidades psíquicas da sua fase de desenvolvimento, além de representações sociais construídas sobre a relação conjugal, amorosa e do ser homem e mulher na família. De forma conexa refletiram sobre condições sociais e relações em família vividas, além de absorções do ideal cultural do amor romântico e de gênero. Conclusão: na saúde reprodutiva de adolescentes, é indispensável considerar as influências afetivas no engravidar, sem descolá-las das inserções sociais e em família daquelas, bem como dos seus modos de exercer a agência de suas trajetórias afetivo-sexuais.

7.
Radiol. bras ; 56(4): 202-206, 2023. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1514658

RESUMO

Abstract Objective: To describe cases of parafoveal chondral lesion of the femoral head in patients with femoroacetabular impingement, correlating the clinical and imaging data. Materials and Methods: This was a retrospective descriptive case series of parafoveal chondral lesion of the femoral head in 21 patients who underwent computed tomography and magnetic resonance arthrography scans of the hip, having then received an imaging-based diagnosis of femoroacetabular impingement. Results: Of the 21 patients evaluated, 15 (71%) had cam-type femoroacetabular impingement, whereas five (24%) had mixed-type impingement, and one (5%) had pincer-type impingement. Twelve patients (57%) had a low frequency of physical activity, which was significantly associated with the presence of cam-type impingement (p = 0.015). Although the extent of the lesion correlated significantly with the acetabular coverage angle (p = 0.04), it did not correlate significantly with the alpha angle or femoral head-neck offset value (p = 0.08 and p = 0.06, respectively). We also found no correlation between the extent of the lesion and the other main parameters that define the femoroacetabular impingement types. Conclusion: This was one of the largest case series of parafoveal chondral lesion of the femoral head in patients with imaging findings of femoroacetabular impingement. The extent of such lesions does not appear to correlate with the parameters of femoroacetabular impingement, with the exception of the acetabular coverage angle.


Resumo Objetivo: Descrever casos de lesão condral parafoveal da cabeça femoral em pacientes com impacto femoroacetabular, correlacionando dados clínicos e de imagem. Materiais e Métodos: Esta foi uma série de casos descritiva retrospectiva de lesão condral parafoveal da cabeça femoral em 21 pacientes submetidos a tomografia computadorizada e artrorressonância magnética do quadril e que receberam diagnóstico por imagem de impacto femoroacetabular. Resultados: Dos 21 pacientes avaliados, 15 (71%) tiveram impacto femoroacetabular do tipo cam, enquanto cinco (24%) tiveram impacto do tipo misto e um (5%) teve impacto do tipo pincer. Doze pacientes (57%) apresentaram baixa frequência de atividade física, sendo esta significativamente associada a impacto do tipo cam (p = 0,015). Houve correlação significativa entre a extensão da lesão e o ângulo de cobertura acetabular (p = 0,04), porém, não se correlacionou significativamente com o ângulo alfa ou com o valor do deslocamento cabeça-colo femoral (p = 0,08 e p = 0,06, respectivamente). Também não encontramos correlação entre a extensão da lesão e os outros principais parâmetros que definem os tipos de impacto femoroacetabular. Conclusão: Esta foi uma das maiores casuísticas de lesão condral parafoveal da cabeça femoral em pacientes com achados de imagem de impacto femoroacetabular. A extensão dessas lesões não parece se correlacionar com os parâmetros do impacto femoroacetabular, com exceção do ângulo de cobertura acetabular.

8.
Viruses ; 14(10)2022 09 22.
Artigo em Inglês | MEDLINE | ID: mdl-36298656

RESUMO

The rapid and disorderly urbanization in the Amazon has resulted in the insertion of forest fragments into cities, causing the circulation of arboviruses, which can involve hematophagous arthropods and free-ranging birds in the transmission cycles in urban environments. This study aimed to evaluate the circulation of arboviruses in free-ranging birds and hematophagous arthropods captured in an Environmental Protection Area in the Belem metropolitan area, Brazil. Birds were captured using mist nets, and hematophagous arthropods were collected using a human protected attraction technique and light traps. The birds' sera were subjected to a hemagglutination inhibition test to detect antibodies against 29 arbovirus antigens. Arthropod macerates were inoculated into C6/36 and VERO cell cultures to attempt viral isolation and were tested using indirect immunofluorescence, subsequent genetic sequencing and submitted for phylogenetic analysis. Four bird sera were positive for arbovirus, and one batch of Psorophora ferox was positive for Flavivirus on viral isolation and indirect immunofluorescence. In addition, the Ilheus virus was detected in the sequencing and phylogenetic analysis. The presence of antibodies in sera from free-ranging birds and the isolation of Ilheus virus in Psorophora ferox indicate the circulation of arboviruses in forest remnants in the urban center of Belem.


Assuntos
Infecções por Arbovirus , Arbovírus , Artrópodes , Culicidae , Animais , Humanos , Conservação dos Recursos Naturais , Nematóceros , Filogenia , Aves , Florestas , Ecossistema , Infecções por Arbovirus/veterinária
9.
Front Plant Sci ; 13: 984804, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36092396

RESUMO

Common bean (Phaseolus vulgaris L.) is a staple food in Brazil with both nutritional and socioeconomic importance. As an orphan crop, it has not received as much research attention as the commodity crops. Crop losses are strongly related to virus diseases transmitted by the whitefly Bemisia tabaci, one of the most important agricultural pests in the world. The main method of managing whitefly-transmitted viruses has been the application of insecticides to reduce vector populations. Compared to chemical vector control, a more sustainable strategy for managing insect-borne viruses is the development of resistant/tolerant cultivars. RNA interference has been applied to develop plant lines resistant to the whitefly in other species, such as tomato, lettuce and tobacco. Still, no whitefly-resistant plant has been made commercially available to date. Common bean is a recalcitrant species to in vitro regeneration; therefore, stable genetic transformation of this plant has been achieved only at low frequencies (<1%) using particle bombardment. In the present work, two transgenic common bean lines were obtained with an intron-hairpin construct to induce post-transcriptional gene silencing against the B. tabaci vATPase (Bt-vATPase) gene, with stable expression of siRNA. Northern blot analysis revealed the presence of bands of expected size for siRNA in leaf samples of the line Bt-22.5, while in the other line (11.5), the amount of siRNA produced was significantly smaller. Bioassays were conducted with both lines, but only the line Bt-22.5 was associated with significant mortality of adult insects (97% when insects were fed on detached leaves and 59% on the whole plant). The expression of the Bt-vATPase gene was 50% lower (p < 0.05) in insects that fed on the transgenic line Bt-22.5, when compared to non-transgenic controls. The transgenic line did not affect the virus transmission ability of the insects. Moreover, no effect was observed on the reproduction of non-target organisms, such as the black aphid Aphis craccivora, the leafminer Liriomyza sp. and the whitefly parasitoid Encarsia formosa. The results presented here serve as a basis for the development of whitefly-tolerant transgenic elite common bean cultivars, with potential to contribute to the management of the whitefly and virus diseases.

10.
Fisioter. Bras ; 23(4): 563-579, 13/08/2022.
Artigo em Português | LILACS-Express | LILACS | ID: biblio-1436409

RESUMO

Introdução: Para tocar o instrumento de sopro, o instrumentista, com os lábios semicerrados, faz uma expiração forçada para produzir a intensidade e a frequência desejada do som. Esta ação, ao tocar o instrumento se relaciona a manobra de valsalva, pois da mesma forma impõe pressão ao músculo do assoalho pélvico. Objetivo: Avaliar se o músico de sopro pode desencadear incontinência urinária pela pressão intra-abdominal exercida durante a execução de seu instrumento. Métodos: Foi realizado um questionário com perguntas relacionadas a incontinência urinária para dois grupos musicais, a Orquestra Sinfônica Jovem do Estado de Mato Grosso e a banda do Corpo de Bombeiros Militar de Mato Grosso localizada na cidade de Cuiabá, capital do estado de Mato Grosso. Foram estudados 36 músicos (30 homens e 6 mulheres). Resultados: Foram encontrados dois músicos do sexo masculino com incontinência urinária há menos de um ano e queixas relacionadas à incontinência urinária, assim como alguns músicos possuem desconforto ao tocar afirmando sentir vontade de defecar. Conclusão: Esse tipo de sintoma pode estar relacionado a outra patologia, a incontinência fecal, deixando espaço para estudos futuros.

11.
Photodiagnosis Photodyn Ther ; 39: 103030, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35872352

RESUMO

More than half of the global population lives in areas where the Aedes aegypti mosquito is present. Efforts have been made to deal with the population of this mosquito in the larval and adult stages to prevent outbreaks of diseases (Dengue, Zika, Chikungunya, and Yellow Fever). In this scenario, photodynamic inactivation may be an effective alternative method to control this vector population. To evaluate the efficacy of the riboflavin - B2 vitamin - as photosensitizer (PS) in the photodynamic inactivation of Ae. aegypti larvae, different concentrations (0; 0.005; 0.010; 0.025; 0.050; 0.075 and 0.100 mg mL-1) were evaluated under white light from RGB LEDs at a light dose of 495.2  J cm-2. The results reveal that riboflavin can be successfully applied as a PS agent to photoinactivate Ae. aegypti larvae, showing its potential to deal with the larvae population.


Assuntos
Aedes , Fotoquimioterapia , Infecção por Zika virus , Zika virus , Aedes/fisiologia , Animais , Larva , Mosquitos Vetores , Fotoquimioterapia/métodos , Fármacos Fotossensibilizantes/farmacologia , Riboflavina/farmacologia
12.
J Photochem Photobiol B ; 224: 112323, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34598019

RESUMO

This work evaluated the photosensitizing activity of isomeric tetra-cationic porphyrins with peripheral [Pt(bpy)Cl]+ to control the larval population of Aedes aegypti by photodynamic action. The photolarvicidal activity of the tetra-platinated porphyrins at meta and para position (3-PtTPyP and 4-PtTPyP) was evaluated under blue (450 nm), green (525 nm), and red (625 nm) light illumination at 55.0 J cm-2. The meta isomer presented an efficient photolarvicidal activity even at a low concentration (1.2 ppm) in the presence of light, while the para counterpart was inactive regardless of the concentration and illumination. The different responses were related to the improved optical features and higher water solubility of 3-PtTPyP compared to 4-PtTPyP. Additionally, the potential environmental toxicity of 3-PtTPyP was tested in a plant model (Allium cepa test), with no toxicity detected for all used concentrations (1.2 to 12 ppm). Hence, this work reveals that 3-PtTPyP has a great potential to be employed to photodynamically control the insect vector population in an environmentally safe way.


Assuntos
Aedes/crescimento & desenvolvimento , Complexos de Coordenação/farmacologia , Larva/efeitos dos fármacos , Controle de Mosquitos/métodos , Fármacos Fotossensibilizantes/farmacologia , Compostos de Platina/química , Porfirinas/química , Animais , Complexos de Coordenação/química , Isomerismo
13.
Rhinology ; 59(6): 567-576, 2021 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-34608897

RESUMO

BACKGROUND: microRNAs (miRNAs) are directly associated with inflammatory response, but their direct role in CRSwNP (chronic rhinosinusitis with nasal polyps) remains evasive. This study aimed to compare the expression of several miRNAs in tissue samples obtained from patients with CRSwNP and controls and to evaluate if miRNAs correlate to a specific inflammatory pattern (T1, T2, T17, and Treg) or intensity of symptoms in CRSwNP. METHODS: nasal polyps (from patients with CRSwNP - n=36) and middle turbinate mucosa (from control patients - n=41) were collected. Microarray determined human mature miRNA expression, and the results obtained were validated by qPCR. miRNAs that were differentially expressed were then correlated to cytokine proteins (by Luminex), tissue eosinophilia, and SNOT-22. RESULTS: After microarray and qPCR analyses, six microRNAs were up-regulated in CRSwNP samples when compared with controls: miR-205-5p, miR-221-3p, miR-222-3p, miR-378a-3p, miR-449a and miR-449b-5p. All these miRNAs are directly implicated with cell cycle regulation and apoptosis, and to a minor extent, with inflammation. Importantly, miR-205-5p showed a significantly positive correlation with IL-5 concentration and eosinophil count at the tissue and with the worst SNOT-22 score. CONCLUSIONS: miRNA 205-5p was increased in CRSwNP compared to controls, and it was especially expressed in CRSwNP patients with higher T2 inflammation (measured by both IL-5 levels and local eosinophilia) and worst clinical presentation. This miRNA may be an interesting target to be explored in patients with CRSwNP.


Assuntos
MicroRNAs , Pólipos Nasais , Rinite , Sinusite , Doença Crônica , Eosinófilos , Humanos , Pólipos Nasais/complicações , Pólipos Nasais/genética
14.
Plant Biol (Stuttg) ; 23(6): 1037-1043, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34516716

RESUMO

Host plant selection by herbivores is driven by a complex array of cues, including leaf traits and previous leaf damage. Herbivore-associated cues to host selection at the plant and leaf scale aid understanding of mechanisms responsible for host preference that might translate into increased performance, as well as processes structuring herbivore populations mediated by interactions. We investigated how changes induced by a galling insect in the tropical fern Cyathea phalerata act as repellent or attractant cues for sawfly feeding and the effects of leaf size on herbivory levels. We recorded gall abundance, damage by chewers, leaf size, plant nutritional quality, phenolic concentration and leaf anatomical traits between galled and non-galled leaf samples. Galled samples contained less N, higher levels of phenolics and higher C/N ratio. However, leaf-chewing damage did not differ between galled and non-galled leaves. The gall structure was avoided by chewers, as it had high concentrations of phenolics, lignification and suberization. Larger leaves sustained higher gall abundance, but leaf size did not have a significant effect on chewer damage. A co-occurrence index calculated for both guilds indicated that galls and chewers exhibited a distribution that did not differ from random, reinforcing that the two guilds on C. phalerata do not show patterns of repulsion such as those maintained by interspecific competition. Sawflies dismissing chemical cues indicate that the increase in phenolics caused by galling insects does not generate increased protection of the galled pinnules. Our results highlight ferns as key resources for herbivores and as a potential plant group to study new research avenues on plant-insect interactions.


Assuntos
Gleiquênias , Animais , Herbivoria , Insetos , Fenótipo , Folhas de Planta
15.
Rev Bras Enferm ; 74(6): e20190910, 2021.
Artigo em Inglês, Português | MEDLINE | ID: mdl-34346943

RESUMO

OBJECTIVE: to report an experience using the Team-Based Learning methodology for the development of a standard model for Birth Plans by health professionals. METHODS: experience report on the use of Team-Based Learning to develop care technology, with the participation of 120 professionals from two municipalities located in the Midwest Region. RESULTS: the use of Team-Based Learning in this experience enabled the construction of a Child Delivery Plan model based on the theoretical approach to the theme, a critical reflection exercise, an in-depth discussion, decision-making, after what a consensus was reached. The methodology enabled the (co) construction of knowledge in small groups, teamwork, accountability, and satisfaction among the participants. FINAL CONSIDERATIONS: the use of the TeamBased Learning methodology proved to be effective as a discussion strategy, building consensus and syntheses for the elaboration of a care technology aimed at the pregnancy-parturition period.


Assuntos
Família , Parto , Criança , Feminino , Pessoal de Saúde , Humanos , Aprendizagem , Gravidez
16.
Rev Esc Enferm USP ; 55: e20200408, 2021.
Artigo em Inglês, Português | MEDLINE | ID: mdl-34407158

RESUMO

OBJECTIVE: To assess the context of work and analyze their repercussions on the quality of life of rural workers in soybean agribusiness. METHOD: Cross-sectional study, with an intentional sample of rural workers, conducted between the months of October and December 2019, with the application of the instruments World Health Organization Quality Life-bref and Scales of Assessment of Context and Human Cost of Work. The data were analyzed through bivariate and multivariate descriptive statistics. RESULTS: The participants amounted to 299 rural workers. The scores of Work Conditions and Socioprofessional Relations were satisfactory and Organization of Work was critical. The scores of Physical and Cognitive costs were considered critical and of the Affective Cost was satisfactory. The Socioprofessional Relations have negatively impacted the overall quality of life and the Physical and Psychological, the Social Relations and the Environmental Domains, whereas Cognitive Cost positively impacted the Physical and the Environmental Domain and the Affective Cost positively impacted the Social Relations Domain. CONCLUSION: Although the Work Context and Human Cost indicated adverse conditions, only the Socioprofessional Relations exerted negative influences on the quality of life of rural workers.


Assuntos
Qualidade de Vida , População Rural , Estudos Transversais , Humanos , Inquéritos e Questionários , Local de Trabalho
17.
Rev. Esc. Enferm. USP ; 55: e20200408, 2021. tab
Artigo em Inglês | BDENF - Enfermagem, LILACS | ID: biblio-1287920

RESUMO

ABSTRACT Objective: To assess the context of work and analyze their repercussions on the quality of life of rural workers in soybean agribusiness. Method: Cross-sectional study, with an intentional sample of rural workers, conducted between the months of October and December 2019, with the application of the instruments World Health Organization Quality Life-bref and Scales of Assessment of Context and Human Cost of Work. The data were analyzed through bivariate and multivariate descriptive statistics. Results: The participants amounted to 299 rural workers. The scores of Work Conditions and Socioprofessional Relations were satisfactory and Organization of Work was critical. The scores of Physical and Cognitive costs were considered critical and of the Affective Cost was satisfactory. The Socioprofessional Relations have negatively impacted the overall quality of life and the Physical and Psychological, the Social Relations and the Environmental Domains, whereas Cognitive Cost positively impacted the Physical and the Environmental Domain and the Affective Cost positively impacted the Social Relations Domain. Conclusion: Although the Work Context and Human Cost indicated adverse conditions, only the Socioprofessional Relations exerted negative influences on the quality of life of rural workers.


RESUMEN Objetivo: Evaluar el contexto de trabajo y analizar sus repercusiones en la calidad de vida de los trabajadores rurales de la agroindustria de la soja. Método: Estudio transversal con una muestra intencional de trabajadores rurales, realizado entre los meses de octubre y diciembre de 2019, con aplicación de los instrumentos World Health Organization Quality Life-bref y Escalas de Evaluación del Contexto y Costo Humano del Trabajo. Los datos se analizaron mediante estadísticas descriptivas, bivariadas y multivariadas. Resultados: Participaron un total de 299 trabajadores rurales. Las puntuaciones de las Condiciones de Trabajo y las Relaciones Socioprofesionales fueron satisfactorias y la de la Organización del Trabajo fue crítica. Las puntuaciones de los Costos Físico y Cognitivo fueron consideradas críticas y la del Costo Afectivo fue satisfactoria. Las Relaciones Socioprofesionales impactaron negativamente la calidad de vida global y los Dominios Físico y Psicológico, Relaciones Sociales y Entorno, mientras que el Costo Cognitivo impactó positivamente los Dominios Físico y Entorno y el Costo Afectivo impactó positivamente el Dominio de Relaciones Sociales. Conclusión: Aunque el Contexto y el Costo Humano del Trabajo indican condiciones adversas, sólo las Relaciones Socioprofesionales ejercieron influencias negativas en la calidad de vida de los trabajadores rurales.


RESUMO Objetivo: Avaliar o contexto de trabalho e analisar suas repercussões na qualidade de vida de trabalhadores rurais do agronegócio da soja. Método: Estudo transversal, com amostra intencional de trabalhadores rurais, realizado entre os meses de outubro e dezembro de 2019, com aplicação dos instrumentos World Health Organization Quality Life-bref e Escalas de Avaliação do Contexto e Custo Humano do Trabalho. Os dados foram analisados por meio de estatística descritiva, bivariada e multivariada. Resultados: Participaram 299 trabalhadores rurais. Os escores das Condições de Trabalho e das Relações Socioprofissionais foram satisfatórios e o da Organização do Trabalho foi crítico. Os escores dos Custos Físico e Cognitivo foram considerados críticos e o do Custo Afetivo, satisfatório. As Relações Socioprofissionais repercutiram negativamente na qualidade de vida geral e nos Domínios Físico e Psicológico, nas Relações Sociais e no Meio Ambiente, enquanto o Custo Cognitivo repercutiu positivamente nos Domínios Físico e no Meio Ambiente e o Custo Afetivo repercutiu positivamente no Domínio das Relações Sociais. Conclusão: Apesar de o Contexto e o Custo Humano do Trabalho indicarem condições adversas, somente as Relações Socioprofissionais exerceram influências negativas na qualidade de vida dos trabalhadores rurais.


Assuntos
Trabalhadores Rurais , Saúde Ocupacional , Enfermagem do Trabalho , Qualidade de Vida
18.
Rev. bras. enferm ; 74(6): e20190910, 2021.
Artigo em Inglês | LILACS-Express | LILACS, BDENF - Enfermagem | ID: biblio-1288414

RESUMO

ABSTRACT Objective: to report an experience using the Team-Based Learning methodology for the development of a standard model for Birth Plans by health professionals. Methods: experience report on the use of Team-Based Learning to develop care technology, with the participation of 120 professionals from two municipalities located in the Midwest Region. Results: the use of Team-Based Learning in this experience enabled the construction of a Child Delivery Plan model based on the theoretical approach to the theme, a critical reflection exercise, an in-depth discussion, decision-making, after what a consensus was reached. The methodology enabled the (co) construction of knowledge in small groups, teamwork, accountability, and satisfaction among the participants. Final Considerations: the use of the TeamBased Learning methodology proved to be effective as a discussion strategy, building consensus and syntheses for the elaboration of a care technology aimed at the pregnancy-parturition period.


RESUMEN Objetivo: relatar la experiencia con el uso de la metodología Team-Based Learning para la elaboración de un modelo-estándar de Plan de Parto por profesionales de salud Métodos: relato de experiencia sobre el uso del Team-Based Learning para elaboración de una tecnología de cuidado, con la participación de 120 profesionales de dos municipios localizados en la Región Medio Oeste. Resultados: el uso del Team-Based Learning en esta experiencia posibilitó la construcción de un modelo de Plan de Parto con base en el acercamiento teórico con la temática, ejercicio crítico de reflexión, discusión en profundidad, toma de decisiones y consensos. La metodología fomentó la (co)construcción de conocimientos en pequeños equipos, trabajo en equipo, responsabilización y satisfacción entre los participantes. Consideraciones Finales: el uso de la metodología Team-Based Learning mostró eficaz como estrategia de discusión, construcción de consensos y síntesis para elaboración de una tecnología de cuidado vuelta al período puerperio.


RESUMO Objetivo: relatar a experiência com o uso da metodologia Team-Based Learning para a elaboração de um modelo-padrão de Plano de Parto por profissionais de saúde. Métodos: relato de experiência sobre o uso do Team-Based Learning para elaboração de uma tecnologia de cuidado, com a participação de 120 profissionais de dois municípios localizados na Região Centro-Oeste. Resultados: o uso do Team-Based Learning nesta experiência possibilitou a construção de um modelo de Plano de Parto com base na aproximação teórica com a temática, exercício crítico de reflexão, discussão em profundidade, tomada de decisões e consensos. A metodologia fomentou a (co)construção de conhecimentos em pequenos grupos, trabalho em equipe, responsabilização e satisfação entre os participantes. Considerações Finais: o uso da metodologia TeamBased Learning mostrou-se eficaz como estratégia de discussão, construção de consensos e sínteses para elaboração de uma tecnologia de cuidado voltada ao período gravídico-parturitivo.

19.
Mem Inst Oswaldo Cruz ; 115: e190501, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33174908

RESUMO

BACKGROUND: Non-human primates contribute to the spread of the yellow fever virus (YFV) and the establishment of transmission cycles in endemic areas. OBJECTIVE: To describe the severe histopathological aspects of YFV infection, 10 squirrel monkeys were infected with YFV and blood, brain, liver, kidney, spleen, heart, lung, lymph node and stomach were collected at 1-7, 10, 20 and 30 days post-infection (dpi). METHODS: Histopathological analysis and detection of the genome and viral antigens and neutralising antibodies were performed by RT-PCR, immunohistochemistry and neutralisation test, respectively. FINDINGS: Only one animal died from the experimental infection. The genome and viral antigens were detected in all investigated organs (1-30 dpi) and the neutralising antibodies from seven to 30 dpi. The brain contained perivascular haemorrhage (6 dpi); in the liver, midzonal haemorrhage and lytic necrosis (6 dpi) were observed. The kidney had bleeding in the Bowman's capsule and tubular necrosis (6 dpi). Pyknotic lymphocytes were observed in the spleen (1-20 dpi), the lung had haemorrhage (2-6 dpi), in the endocardium it contained nuclear pyknosis and necrosis (2-3 dpi) and the stomach contained blood in the lumen (6 dpi). MAIN FINDINGS: Squirrel monkeys reliably reproduced the responses observed in human cases of yellow fever and, therefore, constitute an excellent experimental model for studies on the pathophysiology of the disease.


Assuntos
Saimiri/virologia , Febre Amarela/diagnóstico , Vírus da Febre Amarela/isolamento & purificação , Animais , Modelos Animais de Doenças
20.
Obes Surg ; 30(12): 5020-5025, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32857300

RESUMO

INTRODUCTION: Sub-optimal weight loss following Roux-en-Y gastric bypass (RYGB) represents an important clinical challenge in a significant number of patients. Early identification of such patients would be advantageous, as it could aid in the selective implementation of targeted adjunct interventions during the first post-operative year. METHODS: Clinical audit data from 1137 patients undergoing RYGB between 2013 and 2016 at the Instituto Sallet in Brazil were prospectively registered in an online database (BOLD) and analyzed. RESULTS: Forty-eight percent of patients achieving less than 5% total weight loss after the first post-operative month achieved a 20% total weight loss at 1 year (n = 626; OR = 0.6 CI = 95%). Eighty-three percent of patients losing between 5 and 10% at 1 month and 95% of patients losing greater than 10% at 1 month had lost at least 20% of total body weight after the first post-operative year. Forty-four percent of patients achieving less than 10% total weight loss after the third post-operative month achieved 20% total weight loss at 1 year (n = 494; OR = 0.3 CI = 95%). CONCLUSION: Total bodyweight reduction after RYGB of < 5% at 1 month and < 10% at 3 months is associated with suboptimal weight loss at 1 year. These results reinforce findings from other studies reporting that patients tend to follow a common weight loss trajectory. Identifying the patients with weight trajectory requiring adjunct therapies early on is crucial so appropriate adjustments can be made to post-operative care.


Assuntos
Derivação Gástrica , Obesidade Mórbida , Índice de Massa Corporal , Brasil , Seguimentos , Humanos , Obesidade Mórbida/cirurgia , Estudos Retrospectivos , Redução de Peso
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