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Effect of seasonality on the leaf phenology and physiology of Byrsonima species (Malpighiaceae)
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Godinho-Pereira, Bárbara

; de-Faria, Ana-Paula

; Coelho-Kuster, Vinícius

; Franco-Pinheiro-Moreira, Ana-Silvia

Revista de Biología Tropical

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dec 2023, Volume 71 N. 1 elocation e50344

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen Introducción: La marcada estacionalidad en las especies de sabana puede estimular respuestas fisiológicas que maximicen el metabolismo fotosintético y la productividad. Sin embargo, esas respuestas fisiológicas están vinculadas al estado fenológico de toda la planta, incluidas las fenofases de las hojas. Objetivo: Estudiar cómo los rasgos fisiológicos influyen en el tiempo de la fenofase entre especies de sabana congenéricas y concurrentes. Métodos: Evaluamos la fenología y características fisiológicas de poblaciones de Byrsonima intermedia, B. coccolobifolia y B. verbascifolia. Las mediciones fisiológicas se realizaron al inicio de la estación seca y lluviosa, y de nuevo al final de la estación. Resultados: B. intermedia y B. coccolobifolia se clasificaron como brevicaducifolias y B. verbascifolia como perennifolias. El rendimiento cuántico máximo para B. intermedia y B. coccolobifolia fueron más bajos durante la época seca. Al inicio del período seco, se observaron niveles de pigmentos cloroplastídicos más altos, aunque los niveles de clorofila disminuyeron a medida que avanzaba la estación seca, las proporciones clorofila/carotenoides totales fueron más bajas y los contenidos de carotenoides más altos. Detectamos valores bajos de contenido de almidón al inicio de la época lluviosa, que coincide con la reanudación del crecimiento de la planta. A dos meses de esta época, las hojas estaban en su máxima madurez estructural y funcional, con altos valores de polisacáridos solubles en agua y tasas fotosintéticas, y almacenaban grandes cantidades de almidón. Conclusiones: Las estrategias fisiológicas y fenológicas de las hojas de las especies de Byrsonima estaban relacionadas con la resistencia a la sequía y la aclimatación a la estacionalidad de los recursos hídricos de la sabana. Las oscilaciones de los parámetros cuantificados durante el año indicaron una fuerte relación con la estacionalidad hídrica y con los estados fenológicos de las hojas.

Abstract Introduction: Defined seasonality in savanna species can stimulate physiological responses that maximize photosynthetic metabolism and productivity. However, those physiological responses are also linked to the phenological status of the whole plant, including leaf phenophases. Objective: To study how physiological traits influence phenophase timing among congeneric and co-occurring savanna species. Methods: We evaluated the leaf phenology and physiological traits of populations of Byrsonima intermedia, B. coccolobifolia, and B. verbascifolia. Physiological measurements were performed at the onset of the dry and rainy seasons and again late in the season. Results: B. intermedia and B. coccolobifolia were classified as brevideciduous and B. verbascifolia as evergreen. The maximum quantum yield for B. intermedia and B. coccolobifolia were lowest during the dry season. At the onset of the dry period, the highest chloroplastidic pigment levels were observed, which decreased as the season advanced, total chlorophyll/carotenoid ratios were lowest, and carotenoid contents were highest. We detected low starch content values at the start of the rainy season, coinciding with the resumption of plant growth. Two months into this season, the leaves were at their peak structural and functional maturity, with high water-soluble polysaccharide values and photosynthetic rates, and were storing large amounts of starch. Conclusions: Physiological and leaf phenological strategies of the Byrsonima species were related to drought resistance and acclimatization to the seasonality of savanna water resources. The oscillations of the parameters quantified during the year indicated a strong relationship with water seasonality and with the phenological status of the leaves.

https://doi.org/10.15517/rev.biol.trop..v71i1.50344

Comparative Analysis of TNF-alpha, TNF-R1, and TNF-R2 in Patients with Low-impact Fractures Due to Osteoporosis
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Teixeira, Abel Oliveira Marques

; Rodrigues-Júnior, Virmondes

; Rodrigues, Bárbara Rocha

; Souza, Danila Malheiros

; Gaia, Leonardo Franco Pinheiro

; Rodrigues, Denise Bertulucci Rocha

Revista Brasileira de Ortopedia

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may 2023, Volume 58 N. 3 Pages 495 - 499

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Objective To analyze the serum levels of TNF-alpha and its TNF-R1 and TNF-R2 receptors in the blood of patients with low-impact fractures due to osteoporosis, comparing between genders and with healthy patients. Methods The present study was conducted with a blood sample of 62 patients, divided into patients with osteoporosis and healthy patients. The results were obtained using the ELISA method. Cytokine concentrations were determined based on the absorbance values obtained. Results Serum TNF-alpha levels were undetectable in female patients, while in males they were found only in one patient, with no significant difference. Similar results were found in the analyses of TNF-R1 and TNF-R2 levels, a significant increase in levels of TNF-alpha receptors in the groups of patients with osteoporosis compared with the control groupinbothsexes.There wasnosignificant difference between the sexes in the dosage of both receptors within the group with osteoporosis. There was also a positive and significant correlation in the levels of TNF-R1 and TNF-R2 only in women. Conclusion The significant increase in TNF-R1 and TNF-R2 levels in women with osteoporosis suggest that the release and expression of these receptors may be contributing differently to the development of osteoporosis in men and women.

Resumo Objetivo Analisar os níveis séricos de TNF-alfa e de seus receptores TNF-R1 e TNF-R2 no sangue de pacientes com fraturas de baixo impacto, decorrentes de osteoporose, comparando entre os sexos e com pacientes saudáveis. Métodos Oestudofoi realizadocom amostradesanguede 62 pacientes,divididos em pacientes com osteoporose e pacientes saudáveis. Os resultados foram obtidos através do método de ELISA. As concentrações de citocinas foram determinadas com base nos valores de absorbância obtidos. Resultados Os níveis séricos de TNF-alfa foram indetectáveis nos pacientes do sexo feminino, enquanto no masculino encontrou-se somente em um paciente, não havendo diferença significativa. Encontrou-se resultados semelhantes nas análises dos níveis de TNF-R1 e TNF-R2, aumento significativo nos níveis dos receptores de TNF-alfa nos grupos de pacientes com osteoporose em comparação com o grupo controle, em ambos os sexos. Não houve diferença significativa entre os sexos na dosagem de ambos os receptores dentro do grupo com osteoporose. Houve ainda correlação positiva e significativa nos níveis de TNF-R1 e TNF-R2 apenas nas mulheres. Conclusão O aumento significativo nos níveis de TNF-R1 e TNF-R2 em mulheres com osteoporose sugerem que a liberação e expressão destes receptores pode estar contribuindo de maneira distinta no desenvolvimento da osteoporose em homens e mulheres.

https://doi.org/10.1055/s-0042-1757963

Barreiras e facilitadores do enfrentamento de HIV/aids e sífilis por venezuelanas residentes no Brasil
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Mocelin, Helaine Jacinta Salvador

; Jezus, Sonia Vivian de

; Negri, Leticya dos Santos Almeida

; Borges, Bárbara Juliana Pinheiro

; Silva, Adriana Ilha da

; Maciel, Ethel Leonor Noia

Revista Panamericana de Salud Pública

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2023, Volume 47 elocation e3

Abstract: En Es Pt | Text: En Es Pt | PDF: En | PDF: Es | PDF: Pt

ABSTRACT Objective. To describe the perception of Venezuelan women regarding access to health care, diagnosis, and treatment of HIV/aids and syphilis in Brazil. Method. This is a descriptive, exploratory study employing a qualitative approach, performed from February to May 2021 in the municipalities of Manaus, state of Amazonas, and Boa Vista, state of Roraima. The interviews with participants were fully transcribed, with identification of themes based on content analysis. Results. Forty women were interviewed (20 in Manaus and 20 in Boa Vista). Following transcription and translation of the accounts, two analytical categories were identified: barriers to healthcare access, with four subcategories — language, cost, adverse drug reactions, and COVID-19 pandemic; and facilitators of healthcare access, again with four subcategories — Unified Health System (SUS), National Policy of Comprehensive Women’s Health, National Social Assistance Policy, and relationship between healthcare professionals and SUS users. Conclusion. The results showed the need to design strategies to mitigate the difficulties faced by migrant women from Venezuela living in Brazil regarding the diagnosis and treatment of HIV/aids and syphilis, going beyond the healthcare support guaranteed by law.

RESUMEN Objetivo. Describir la percepción de las mujeres venezolanas sobre el acceso a los servicios de salud, al diagnóstico y al tratamiento de la infección por el VIH/sida y la sífilis en Brasil. Métodos. Se trata de un estudio descriptivo y exploratorio, con enfoque cualitativo, realizado entre febrero y mayo del 2021 en los municipios de Manaos, estado de Amazonas, y Boa Vista, estado de Roraima. Las entrevistas con las participantes se transcribieron en su totalidad, y se exploraron los puntos de interés según el análisis del contenido. Resultados. Se entrevistaron 40 mujeres (20 en Manaos y 20 en Boa Vista). A partir de la transcripción y la traducción de las conversaciones, se establecieron dos categorías para el análisis del contenido: las barreras de acceso a los servicios de salud (subcategorías: idioma, costos relacionados con la salud, reacciones adversas a los medicamentos y pandemia de COVID-19); y los factores facilitadores del acceso (cuatro subcategorías: Sistema Único de Salud, Política nacional de Atención Integral a la Salud de la Mujer, Política Nacional de Asistencia Social y relación entre los profesionales de salud y las usuarias del Sistema Único de Salud). Conclusión. Los resultados mostraron la necesidad de formular estrategias para mitigar las dificultades que enfrentan las mujeres migrantes de Venezuela residentes en Brasil en relación con el diagnóstico y el tratamiento de la infección por el VIH/sida y la sífilis, más allá de la protección de la salud garantizada por la ley.

RESUMO Objetivo. Descrever a percepção de mulheres venezuelanas sobre o acesso aos serviços de saúde, ao diagnóstico e ao tratamento de HIV/aids e sífilis no Brasil. Métodos. Trata-se de um estudo descritivo e exploratório, com abordagem qualitativa, realizado no período de fevereiro a maio de 2021 nos municípios de Manaus, estado do Amazonas, e Boa Vista, estado de Roraima. As entrevistas com as participantes foram transcritas na íntegra, com levantamento de temas a partir de análise de conteúdo. Resultados. Foram entrevistadas 40 mulheres (20 em Manaus e 20 em Boa Vista). A partir da transcrição e tradução das falas, foram identificadas duas categorias de análise de conteúdo: barreiras de acesso aos serviços de saúde, com quatro subcategorias — idioma, custos com saúde, reações adversas ao medicamento e pandemia de covid-19; e facilitadores do acesso, com quatro subcategorias — Sistema Único de Saúde, Política Nacional de Atenção Integral à Saúde da Mulher, Política Nacional de Assistência Social e relação entre profissional de saúde e usuária do Sistema Único de Saúde. Conclusão. Os resultados mostraram a necessidade de elaborar estratégias para mitigar as dificuldades enfrentadas pelas mulheres migrantes da Venezuela residentes no Brasil quanto ao diagnóstico e tratamento de HIV/aids e sífilis, indo além do amparo à saúde garantido pela lei.

https://doi.org/10.26633/rpsp.2023.3

Early motor development: risk factors for delay in a population study in Southern Brazil
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Zago, Ana Carolina

; Trettim, Jéssica Puchalski

; Rubin, Bárbara Borges

; Scholl, Carolina Coelho

; Coelho, Fernanda Teixeira

; Ulguim, Fernanda

; Pinheiro, Luísa Mendonça de Souza

; Matos, Mariana Bonati de

; Pinheiro, Ricardo Tavares

; Quevedo, Luciana de Avila

Revista de Saúde Pública

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2023, Volume 57 elocation 59

Abstract: En | Text: En | PDF: En

ABSTRACT OBJECTIVE To assess risk factors associated with motor development delay at three months of age. METHODS Cross-sectional study with mothers and their three-month-old babies in Southern Brazil. The Bayley-III Scale of Infant and Toddler Development (BSID-III) and the Alberta Infant Motor Scale (AIMS) were used to assess motor development. RESULTS We evaluated 756 mothers and their three-month-old babies. The overall mean motor development assessed by the BSID-III and the AIMS was 104.7 (SD 13.5) and 55.4 (SD 25.4), respectively. When assessed by the BSID-III, the lowest motor development scores were among babies born by cesarean delivery (p = 0.002), prematurely (p < 0.001), and with low birth weight (p < 0.001). When assessed by the AIMS, babies born prematurely (p = 0.002) and with low birth weight (p=0.004) had the lowest motor development means. After a cluster analysis, we found that babies born by cesarean delivery, with low birth weight, and prematurely had more impaired motor development compared with children born without any risk factors. CONCLUSION Identifying risk factors allows the implementation of early interventions to prevent motor development delay and, therefore, reduce the probability of other future problems.

https://doi.org/10.11606/s1518-8787.2023057004991

Ausência de acompanhamento familiar e fatores associados nos partos da zona urbana de uma cidade do sul do Brasil: fato ou ficção?
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de Quadros, Caroline Bender

; de Matos, Mariana Bonati

; Rubin, Bárbara Borges

; Trettim, Jéssica Puchalski

; da Cunha, Gabriela Kurz

; Scholl, Carolina Coelho

; Silva, Kênia Cordeiro

; Vieira, Maria Eduarda Centena Duarte

; Quevedo, Luciana de Avila

; Pinheiro, Ricardo Tavares

Revista Brasileira de Epidemiologia

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2023, Volume 26 elocation e230053

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivo: Verificar a prevalência e identificar os fatores associados à ausência do acompanhante de parto em mulheres no sul do Brasil. Métodos: Trata-se de um estudo transversal, realizado com 466 parturientes, pertencentes a uma coorte de mulheres da zona urbana da cidade de Pelotas, RS. Aos 18 meses pós-parto, foi aplicado um questionário estruturado com dados sociodemográficos, gestacionais e questões relacionadas ao parto. Foi realizada regressão logística para ajustes de possíveis fatores de confusão. Resultados: A prevalência da ausência de acompanhante de parto entre as mulheres foi de 22,3%. As parturientes com até 8 anos de estudo (RP=2,0 [IC95% 1,1–3,8]), que não viviam com um companheiro (RP=2,3 [IC95% 1,2–4,3]), que realizaram o pré-natal no setor público (RP=1,9 [IC95% 1,0–3,7]) e que tiveram um parto via cesárea (RP=6,0 [IC95% 2,9–12,4]) apresentaram maior probabilidade de ausência de acompanhante de parto. Conclusão: Os resultados apontam evidências relevantes para o seguimento da verificação da presença do acompanhante de parto no sul do Brasil, indicando a necessidade de melhor aproveitamento e adesão desta prática. Além disso, a lei que aprova a presença do acompanhante de parto no Brasil parece não estar sendo colocada em prática de modo integral, desrespeitando um direito das parturientes e impactando nos benefícios para a saúde materno-infantil.

ABSTRACT Objective: To verify the prevalence and identify the factors associated with the absence of birth companions among women in Southern Brazil. Methods: This is a cross-sectional study carried out with 466 parturient women in a cohort of women from the urban area of the city of Pelotas, RS. At 18 months postpartum, a structured questionnaire was applied with sociodemographic, gestational data and questions related to childbirth. Logistic regression was performed to adjust for possible confounding factors. Results: The prevalence of the absence of a birth companion among women was 22.3%. Parturient women with up to 8 schooling years (PR=2.0 [95%CI 1.1–3.8]), who did not live with a partner (PR=2.3 [95%CI 1.2–4.3]), who performed their prenatal care in the public sector (PR=1.9 [95%CI 1.0–3.7]) and who had a cesarean delivery (PR=6.0 [95%CI 2.9–12.4]) were more likely to not have had a birth companion. Conclusion: The results shows relevant evidence for the verification of the presence of a companion in Southern Brazil, indicating the need for better use and adherence to this practice. In addition, the law that approves the presence of the birth companion in Brazil does not seem to be being fully implemented, disrespecting a right of parturient women and impacting the benefits for for maternal and child health.

https://doi.org/10.1590/1980-549720230053.2

Epidemiology of HIV in pregnant women and its relationship with the period of the COVID-19 pandemic
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Lopes, Bárbara Brandão

; Ramalho, Ane Kelly Lima

; Oriá, Mônica Oliveira Batista

; Cunha, Gilmara Holanda da

; Aquino, Priscila de Souza

; Pinheiro, Ana Karina Bezerra

Revista da Escola de Enfermagem da USP

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2023, Volume 57 elocation e20220339

Abstract: En Es Pt | Text: En Es Pt | PDF: En | PDF: Es | PDF: Pt

ABSTRACT Objective: To analyze, in the light of the Social Ecological Theory, the progression of reported cases of HIV during pregnancy in a Brazilian state and their relationship with the onset of the COVID-19 pandemic. Method: Retrospective study, with a sample consisting of all reports of gestational HIV in the state of Ceará - Brazil from 2017 to 2021, on the IntegraSUS platform. Data collection was carried out in January 2022. The analyzed variables were organized according to the theoretical levels: macrosystem, exosystem, mesosystem, and microsystem. Results: A total of 1,173 cases of HIV in pregnant women were recorded. When comparing the pre- and post-pandemic period, a reduction in the disease detection rate (from 231 to 122.67 pregnant women) was observed, as well as 1.82 times more chances of women not using antiretrovirals during childbirth after the start of the pandemic. There was a 55% reduction in vaginal births and 39% in cesarean sections among women diagnosed with HIV after the start of the pandemic. Conclusion: The COVID-19 pandemic had an epidemiological and care impact, leading to a reduction in the number of notifications and in the detection rate of pregnant women living with HIV in the state of Ceará. Therefore, the need to ensure health care coverage is emphasized, with early diagnosis actions, guaranteed treatment, and quality prenatal care.

RESUMEN Objetivo: Analizar, a la luz de la Teoría Ecológica Social, la evolución de los casos notificados de VIH durante el embarazo en un estado brasileño y su relación con el inicio de la pandemia de COVID-19. Método: Estudio retrospectivo, con una muestra compuesta por todos los informes de VIH gestacional en el estado de Ceará - Brasil de 2017 a 2021, en la plataforma IntegraSUS. La recolección de datos se realizó en enero de 2022. Las variables analizadas se organizaron según los niveles teóricos: macrosistema, exosistema, mesosistema y microsistema. Resultados: Se registraron 1.173 casos de VIH en gestantes. Al comparar el período pre y pospandemia, hubo una reducción en la tasa de detección de la enfermedad (de 231 a 122,67 mujeres embarazadas) y 1,82 veces más posibilidades de que las mujeres no usaran antirretrovirales durante el parto después del inicio de la pandemia. Hubo una reducción del 55% en los partos vaginales y del 39% en las cesáreas entre las mujeres diagnosticadas con VIH después del inicio de la pandemia. Conclusión: La pandemia de COVID-19 tuvo un impacto epidemiológico y asistencial, lo que provocó una reducción en el número de notificaciones y en la tasa de detección de mujeres embarazadas que viven con el VIH en el estado de Ceará. Por lo tanto, se refuerza la necesidad de asegurar la cobertura de salud, con acciones de diagnóstico temprano, tratamiento garantizado y atención prenatal de calidad.

RESUMO Objetivo: Analisar, à luz da Teoria Social Ecológica, a evolução dos casos notificados de HIV na gestação em um estado brasileiro e sua relação com o início da pandemia de COVID-19. Método: Estudo retrospectivo, com amostra composta por todas as notificações de HIV gestacional do estado do Ceará - Brasil no período de 2017 a 2021, na plataforma IntegraSUS. A coleta de dados foi realizada em janeiro de 2022. As variáveis analisadas foram organizadas de acordo com os níveis teóricos: macrossistema, exossistema, mesossistema e microssistema. Resultados: Foram registrados 1.173 casos de HIV em gestantes. Ao comparar o período pré e pós-pandemia, observou-se redução da taxa de detecção da doença (de 231 para 122,67 gestantes) e 1,82 vezes mais chances de as mulheres não usarem antirretrovirais no parto após o início da pandemia. Houve redução de 55% de partos vaginais e de 39% de cesarianas das mulheres com diagnóstico de HIV após o início da pandemia. Conclusão A pandemia de COVID-19 causou impacto epidemiológico e assistencial, levando a uma redução do número de notificações e taxa de detecção de gestantes que vivem com HIV no estado do Ceará. Logo, reforça-se a necessidade de assegurar a cobertura de atenção à saúde, com ações de diagnóstico precoce, garantia de tratamento e uma assistência pré-natal de qualidade.

https://doi.org/10.1590/1980-220x-reeusp-2022-0339en

Which social, gestational and mental health aspects are associated to maternal-fetal attachment?
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Rubin, Bárbara Borges

; Matos, Mariana Bonati de

; Trettim, Jéssica Puchalski

; Scholl, Carolina Coelho

; Cunha, Gabriela Kurz da

; Curcio, Eduarda

; Stigger, Rafaelle Stark

; Martins, Clarissa de Souza Ribeiro

; Motta, Janaína Vieira dos Santos

; Ghisleni, Gabriele

; Pinheiro, Ricardo Tavares

; Quevedo, Luciana de Avila

Revista Brasileira de Saúde Materno Infantil

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2023, Volume 23 elocation e20220361

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Objectives: this study aimed to explore a set of factors associated with lower maternal-fetal attachment (MFA) in pregnant women. Methods: this is a cross-sectional study corresponding to the second wave of a cohort study with a population-based sample of pregnant women in the South of Brazil. The maternal-fetal attachment scale (MFAS) was used to measure MFA. Bivariate analysis was performed using the t-test and ANOVA. The variables that presented p<0.20 were taken for multivariate analysis, through linear regression, in order to control possible confounding factors. Results: a total of 840 pregnant women were included. Pregnant women who had lower MFA means were those who did not live with a partner (B=-3.8 [CI95%=-6.0; -1.7]), those between the first and second trimester of pregnancy (B=-4.3 [CI95%=-5.9; -2.6]), those who did not have support from their mother during pregnancy (B=-2.4 [CI95%=-4.6; -0.2]), and those with depressive symptoms (B=-4.9 [CI95%=-7.4; -2.5]). Conclusions: the results showed that a higher MFA it is associated with an adequate support network during pregnancy, better maternal mental health, and with an advanced pregnancy. Early evaluation of MFA and effort to promote an adequate prenatal bond, focusing on maternal psychological and emotional aspects are strongly suggested.

Resumo Objetivos: explorar um conjunto de fatores associados ao menor apego materno-fetal (AMF) em gestantes. Métodos: trata-se de um estudo transversal, correspondente à segunda fase de um estudo de coorte com uma amostra de base populacional de gestantes no sul do Brasil. Foi utilizada a Escala de Apego Materno-Fetal (EAMF) para medir o AMF. A análise bivariada foi realizada através do teste t e ANOVA. As variáveis que apresentaram p<0,20 foram levadas para análise multivariada, por meio de regressão linear, a fim de controlar possíveis fatores de confusão. Resultados: foram incluídas 840 gestantes. As gestantes que apresentaram menores médias de AMF foram aquelas que não moravam com um companheiro (B=-3,8 [IC95%=-6,0; -1,7]), que estavam entre o primeiro e o segundo trimestre de gestação (B=-4,3 [IC95%=-5,9; -2,6]), que não tiveram o apoio da mãe durante a gestação (B=-2,4 [IC95%=-4,6; -0,2]) e que apresentaram sintomas depressivos (B=-4,9 [IC95%=-7,4; -2,5]). Conclusões: os resultados mostraram que um maior AMF está associado a presença de uma rede de apoio adequada na gravidez, melhor saúde mental materna e a uma gestação avançada. A avaliação precoce do AMF e a promoção de um vínculo pré-natal adequado, com foco nos aspectos psicológicos e emocionais maternos são fortemente sugeridos.

https://doi.org/10.1590/1806-9304202300000361-en

Functional polymorphisms of DNA repair genes in Latin America reinforces the heterogeneity of Myelodysplastic Syndrome
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Borges, Daniela de Paula

; Santos, Rinna Maria Arruda Rodrigues dos

; Velloso, Elvira Rodrigues Pereira

; Ribeiro Junior, Howard Lopes

; Larripa, Irene Beatriz

; Camacho, Maria Fernanda

; González, Jacqueline

; Pratx, Leandro Daniel Burgos

; Magalhães, Sílvia Maria Meira

; Belli, Carolina Bárbara

; Pinheiro, Ronald Feitosa

Hematology, Transfusion and Cell Therapy

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2023, Volume 45 N. 2 Pages 147 - 153

Abstract: En | Text: En | PDF: En

Abstract Nucleotide excision repair pathway (NER) is an essential mechanism for single-strand breaks (SSB) repair while xeroderma pigmentosum family (XPA to XPG) is the most important system to NER. Myelodysplastic syndrome (MDS) is a heterogeneous hematological cancer characterized by cytopenias and risk of acute myeloid leukemia (AML) transformation. MDS pathogenesis has been associated with problems of DNA repair system. This report aimed to evaluate NER polymorphisms (XPA rs1800975, XPC rs2228000, XPD rs1799793 and XPF rs1800067) in 269 MDS patients of different populations in Latin America (173 Brazilian and 96 Argentinean). Genotypes were identified in DNA samples by RT-qPCR using TaqMan SNP Genotyping Assay. Regarding rs1799793 polymorphism of XPD for Brazilian population, the heterozygous genotype AG presented a high odds ratio (OR) to have a normal karyotype (p= 0.012, OR=3.000) and the mutant homozygous genotype AA was associated to a high OR of AML transformation (p= 0.034, OR=7.4). In Argentine population, the homozygous mutant AA genotype of rs1800975 polymorphism of XPA was associated with an increased odd to have hemoglobin levels below 8g/dL (p= 0.013, OR=10.000) while for the rs1799793 polymorphism of XPD, the heterozygous AG genotype decreased OR to be classified as good (p< 0.001, OR=9.05 × 10−10), and intermediate (p< 0.001, OR=3.08 × 10−10), according to Revised-International Prognostic Scoring System. Regarding the rs1800067 polymorphisms of XPF, the homozygous mutant AA genotype showed a decreased OR to be classified as good (p< 0.001, OR=4.03 × 10−13) and intermediate (p< 0.001, OR=2.54 × 10−13). Our report reinforces the heterogeneity of MDS and demonstrates the importance of ethnic differences and regional influences in pathogenesis and prognosis of MDS.

https://doi.org/10.1016/j.htct.2021.08.002

Early motor development: risk factors for delay in a population study in Southern Brazil
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Zago, Ana Carolina

; Trettim, Jéssica Puchalski

; Rubin, Bárbara Borges

; Scholl, Carolina Coelho

; Coelho, Fernanda Teixeira

; Ulguim, Fernanda

; Pinheiro, Luísa Mendonça de Souza

; Matos, Mariana Bonati de

; Pinheiro, Ricardo Tavares

; Quevedo, Luciana de Avila

Revista de Saúde Pública

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2023, Volume 57 elocation 59

Abstract: En | Text: En | PDF: En

https://doi.org/10.11606/s1518-8787.2023057004991

10.

The protective role of postpartum resilience on anxiety rates of Brazilian mothers during the COVID-19 pandemic
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Scholl, Carolina Coelho

; Coelho, Fernanda Teixeira

; Rubin, Bárbara Borges

; Ávila, Caroline Nickel

; Petry, Isabela

; Rosa, Kathreim Macedo da

; Martins, Rayssa da Luz

; Silva, Victória Duquia da

; Weizer, Mariana

; Trettim, Jéssica Puchalski

; Matos, Mariana Bonati de

; Pinheiro, Ricardo Tavares

; Quevedo, Luciana de Avila

Jornal Brasileiro de Psiquiatria

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2023, Volume 72 N. 3 Pages 184 - 190

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT Objective: We evaluated the protective effect of postpartum resilience (measured before the pandemic onset) on the prevalence of moderate to severe anxiety symptoms during the coronavirus disease (COVID-19) pandemic. Methods: The sample included 589 mothers from a longitudinal study in southern Brazil. Three months after delivery we assessed maternal resilience through the Resilience Scale (RS). The Generalized Anxiety Disorders 7-item (GAD-7) was used to assess anxiety symptoms during the COVID-19 pandemic. Results: The prevalence of severe to moderate anxiety symptoms in this sample was 28.4% (95% CI: 25.0; 32.0). Resilience showed to be a protective factor against moderate to severe anxiety symptoms during the pandemic (OR: 0.98; p<0.001). Conclusions: The results showed that postpartum resilience is a factor associated with lower odds of a more intense manifestation of anxiety during pandemic periods. Thus, strengthening resilience by reinforcing appropriate coping strategies can prevent mental health problems.

RESUMO Objetivo: Avaliou-se o efeito protetor da resiliência pós-parto (medida antes do início da pandemia) sobre a prevalência de sintomas de ansiedade moderados a graves durante a pandemia da doença por coronavírus (COVID-19). Métodos: A amostra incluiu 589 mães de um estudo longitudinal do Sul do Brasil. Três meses após o parto, avaliou-se a resiliência materna por meio da Resilience Scale (RS). O Generalized Anxiety Disorders 7-item (GAD-7) foi usado para medir os sintomas de ansiedade durante a pandemia de COVID-19. Resultados: A prevalência de sintomas de ansiedade moderados a graves nessa amostra foi de 28,4% (IC 95%: 25,0-32,0). A resiliência mostrou-se um fator protetor para os sintomas de ansiedade moderados a graves durante a pandemia (RC: 0,98; p<0,001). Conclusões: Os resultados revelaram que a resiliência pós-parto é um fator associado a menor chance de uma manifestação mais intensa da ansiedade durante os períodos pandêmicos. Dessa forma, fortalecer a resiliência, reforçando estratégias de enfrentamento apropriadas, pode prevenir problemas de saúde mental.

https://doi.org/10.1590/0047-2085000000421

11.

Ausência de acompanhamento familiar e fatores associados nos partos da zona urbana de uma cidade do sul do Brasil: fato ou ficção?
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de Quadros, Caroline Bender

; de Matos, Mariana Bonati

; Rubin, Bárbara Borges

; Trettim, Jéssica Puchalski

; da Cunha, Gabriela Kurz

; Scholl, Carolina Coelho

; Silva, Kênia Cordeiro

; Vieira, Maria Eduarda Centena Duarte

; Quevedo, Luciana de Avila

; Pinheiro, Ricardo Tavares

Revista Brasileira de Epidemiologia

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2023, Volume 26 elocation e230053

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

https://doi.org/10.1590/1980-549720230053.2

12.

Scientific diving in Brazil: history, present and perspectives
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Leite, Tatiana S.

; Pinheiro, Igor E.

; Berchez, Flávio

; Bertoncini, Áthila A.

; Cima, Oswaldo M. Del

; Demetrescu, Irene E.

; Francini-Filho, Ronaldo B.

; Kikuchi, Ruy K.P

; Machado, Arthur A.

; Maia-Nogueira, Rodrigo

; Martins, Flavio L.

; Mendes, Liana F.

; Rambelli, Gilson

; Sampaio, Claudio L.S.

; Segal, Barbara

; Aguiar, Aline A.

; Auler, Augusto S.

; Barroco-Neto, José

; Bonaldo, Roberta M.

; Buchmann, Francisco S.

; Calippo, Flavio

; Cesar, Augusto

; Gama, Matheus A.C.

; Ghilardi-Lopes, Natalia

; Leão, Zelinda M.A.N.

; Lessa, Guilherme C.

; Menegola, Carla

; Pinheiro, Hudson T.

; Rocha, Luiz A.

; Sabino, José

; Seoane, José C.S.

; Sestokas, Julia

; Tiago, Cláudio C.

; Wegner, Ewerton

; Lotufo, Tito

Ocean and Coastal Research

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2023, Volume 71 elocation e23045

Abstract: En | Text: En | PDF: En

Abstract Scientific diving (SD) is defined as any diving activity that applies scientific procedures to produce subsidies for studies and technical works in underwater environments. The first report of an underwater scientific study in Brazil dates to the 19th century, in the Abrolhos reefs. Currently, in Brazil, scientific diving has been performed in various areas, from shallow coastal regions to remote and sometimes hard-to-reach places, such as oceanic islands, flooded caves, and icy areas like Antarctica. However, the regulation of SD in Brazil still lacks more concrete actions towards an effective and efficient self-regulation that offers physical safety to practitioners and institutional safeguards for organizations that use it in their research projects. Thus, this article aims to contribute to a better understanding of this critical issue in Brazil and to serve as a reference and incentive for the training of professionals and the development of these activities in the country. It includes: 1) a historical review of SD; 2) a diagnosis of the training and application of SD in Brazil; 3) the evolution of marine sciences in Brazil from the perspective of SD; 4) a review of the use of environmental assessment and underwater conservation techniques in oceans and internal waters; 5) an analysis of the evolution of scientific diver training in Brazil, including a diagnosis on training; 6) the history and updates of the rules, regulations, and safety of SD. Given all the potential of diving combined with specific techniques for research, monitoring, and marine and limnic science in Brazil, we aim to understand the evolution of scientific diving teaching and to outline perspectives in the country, as it is crucial for the training of qualified scientists capable of performing these underwater tasks. Finally, we present future plans for the development of this activity in Brazil from the point of view of research and the labor market.

https://doi.org/10.1590/2675-2824071.23036tsl

13.

Immature Platelet Fraction and Thrombin Generation: Preeclampsia Biomarkers
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Moraes, Daniela

; Milioni, Camila

; Vieira, Carolina Friske

; Parera, Eveline Avila

; Silva, Bárbara Dewes

; Baron, Miriam Viviane

; Costa, Bartira Ercília Pinheiro da

; Poli-de-Figueiredo, Carlos Eduardo

Revista Brasileira de Ginecologia e Obstetrícia

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aug 2022, Volume 44 N. 8 Pages 771 - 775

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo A pré-eclâmpsia, uma síndrome da gestação humana, é caracterizada por elevação da pressão arterial e proteinúria patológica após a 20ª semana de gestação. Sua etiologia permanece desconhecida, e seus mecanismos fisiopatológicos estão relacionados à hipoperfusão placentária, disfunção endotelial, inflamação, e ativação da cascata de coagulação. Recentemente, o papel do sistema do complemento foi considerado. Essa síndrome é uma das principais causas de morbidade e mortalidade materna e fetal. Este artigo discute a hipótese de a pré-eclâmpsia ser desencadeada pela ocorrência da implantação inadequada do sinciciotrofoblasto, associada ao sangramento durante o primeiro trimestre da gravidez com aumento da geração de trombina. A trombina ativa plaquetas, aumentando a liberação de fatores antiangiogênicos na circulação e ativando o sistema do complemento, especialmente o complexo de ataque de membrana (C5b9). Portanto, a fração de plaquetas imaturas e a geração de trombina podem ser possíveis biomarcadores sanguíneos para auxílio no diagnóstico precoce da pré-eclâmpsia.

Abstract Preeclampsia, a human pregnancy syndrome, is characterized by elevated blood pressure and proteinuria after the 20th week of gestation. Its etiology remains unknown, and its pathophysiological mechanisms are related to placental hypoperfusion, endothelial dysfunction, inflammation, and coagulation cascade activation. Recently, the role of the complement system has been considered. This syndrome is one of the main causes of maternal and fetal mortality and morbidity. This article discusses the hypothesis of preeclampsia being triggered by the occurrence of inadequate implantation of the syncytiotrophoblast, associated with bleeding during the first stage of pregnancy and with augmented thrombin generation. Thrombin activates platelets, increasing the release of antiangiogenic factors and activating the complement system, inducing the membrane attack complex (C5b9). Immature platelet fraction and thrombin generation may be possible blood biomarkers to help the early diagnosis of preeclampsia.

https://doi.org/10.1055/s-0042-1743100

14.

Management strategies for implementing a multicenter cross-sectional study: lessons from the ADHERE Brazil study
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Marsicano-Souza, Elisa Oliveira

; Colugnati, Fernando Antônio Basile

; de Castro, Barbara Bruna Abreu

; Van Keullen, Maria do Socorro

; De Geest, Sabina

; Sanders-Pinheiro, Helady

Sao Paulo Medical Journal

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jun 2022, Volume 140 N. 3 Pages 439 - 446

Abstract: En | Text: En | PDF: En

ABSTRACT BACKGROUND: Epidemiological studies involving large samples usually face financial and operational challenges. OBJECTIVES: To describe the planning and execution of ADHERE Brazil, an epidemiological study on 1,105 kidney transplant patients, and report on how the study was structured, difficulties faced and solutions found. DESIGN AND SETTING: Cross-sectional multicenter study in 20 Brazilian kidney transplantation centers. METHODS: Actions developed in each phase of implementation were described, with emphasis on innovations used within the logistics of this study, aimed at estimating the prevalence of nonadherence to treatment. RESULTS: Coordination of activities was divided into four areas: general, regulatory, data collection and statistics. Weekly meetings were held for action planning. The general coordination team was in charge of project elaboration, choice of participating centers, definition of publication policy and monitoring other coordination teams. The regulatory team provided support to centers for submitting the project to ethics committees. The data collection team prepared a manual on the electronic collection system, scheduled web meetings and was available to respond to queries. It also monitored the data quality and reported any inadequacies found. Communication with the centers was through monthly reports via e-mail and distribution of exclusive material. The statistical team acted in all phases of the study, especially in creating the data analysis plan and data bank, generation of randomization lists and data extraction. CONCLUSIONS: Through these logistics, we collected high-quality data and built a local research infrastructure for further studies. We present supporting alternatives for conducting similar studies. CLINICAL TRIAL ANNOTATION: http://clinicaltrials.gov/ on October 10, 2013; NCT02066935.

https://doi.org/10.1590/1516-3180.2021.0492.r1.15092021

15.

Official position of the Brazilian Association of Bone Assessment and Metabolism (ABRASSO) on the evaluation of body composition by densitometry: part I (technical aspects)— general concepts, indications, acquisition, and analysis
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Maeda, Sergio Setsuo

; Peters, Barbara Santarosa Emo

; Martini, Lígia Araújo

; Antunes, Hannah Karen Moreira

; Gonzalez, Maria Cristina

; Arantes, Henrique Pierotti

; Prado, Carla M.

; Pinto, Camila Lemos

; Araújo, Iana Mizumukai de

; Paula, Francisco José Albuquerque de

; Borges, Joao Lindolfo Cunha

; Albergaria, Ben-Hur

; Ushida, Marcela

; Souza, Guilherme Cardenaz de

; Mendonça, Laura Maria Carvalho de

; Prado, Mirley do

; Pinheiro, Marcelo de Medeiros

Advances in Rheumatology

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2022, Volume 62 elocation 7

Abstract: En | Text: En | PDF: En

Abstract Objective: To review the technical aspects of body composition assessment by dual-energy X-ray absorptiometry (DXA) and other methods based on the most recent scientific evidence. Materials and methods: This Official Position is a result of efforts by the Scientific Committee of the Brazilian Association of Bone Assessment and Metabolism (Associação Brasileira de Avaliação Óssea e Osteometabolismo, ABRASSO) and health care professionals with expertise in body composition assessment who were invited to contribute to the preparation of this document. The authors searched current databases for relevant publications. In this first part of the Official Position, the authors discuss the different methods and parameters used for body composition assessment, general principles of DXA, and aspects of the acquisition and analysis of DXA scans. Conclusion: Considering aspects of accuracy, precision, cost, duration, and ability to evaluate all three compartments, DXA is considered the gold-standard method for body composition assessment, particularly for the evaluation of fat mass. In order to ensure reliable, adequate, and reproducible DXA reports, great attention is required regarding quality control procedures, preparation, removal of external artifacts, imaging acquisition, and data analysis and interpretation.

https://doi.org/10.1186/s42358-022-00241-8

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