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Ribeiro A, Rebocho da Costa M, de Sena-Tomás C, Rodrigues EC, Quitéria R, Maçarico T, Rosa Santos SC, Saúde L. Development and repair of blood vessels in the zebrafish spinal cord. Open Biol 2023; 13:230103. [PMID: 37553073 PMCID: PMC10409570 DOI: 10.1098/rsob.230103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/18/2023] [Indexed: 08/10/2023] Open
Abstract
The vascular system is inefficiently repaired after spinal cord injury (SCI) in mammals, resulting in secondary tissue damage and immune deregulation that contribute to the limited functional recovery. Unlike mammals, zebrafish can repair the spinal cord (SC) and restore motility, but the vascular response to injury has not been investigated. Here, we describe the zebrafish SC blood vasculature, starting in development with the initial vessel ingression in a body size-dependent manner, the acquisition of perivascular support and the establishment of ventral to dorsal blood circulation. The vascular organization grows in complexity and displays multiple barrier specializations in adulthood. After injury, vessels rapidly regrow into the lesion, preceding the glial bridge and axons. Vascular repair involves an early burst of angiogenesis that creates dysmorphic and leaky vessels. Dysfunctional vessels are later removed, as pericytes are recruited and the blood-SC barrier is re-established. This study demonstrates that zebrafish can successfully re-vascularize the spinal tissue, reinforcing the value of this organism as a regenerative model for SCI.
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Affiliation(s)
- Ana Ribeiro
- Instituto de Medicina Molecular—João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028 Portugal
| | - Mariana Rebocho da Costa
- Instituto de Medicina Molecular—João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028 Portugal
| | - Carmen de Sena-Tomás
- Instituto de Medicina Molecular—João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028 Portugal
| | - Elsa Charas Rodrigues
- Instituto de Medicina Molecular—João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028 Portugal
| | - Raquel Quitéria
- Instituto de Medicina Molecular—João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028 Portugal
| | - Tiago Maçarico
- Instituto de Medicina Molecular—João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028 Portugal
| | - Susana Constantino Rosa Santos
- Centro Cardiovascular da Universidade de Lisboa (CCUL@RISE), Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028 Portugal
| | - Leonor Saúde
- Instituto de Medicina Molecular—João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028 Portugal
- Instituto de Histologia e Biologia do Desenvolvimento, Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028 Portugal
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Souza MHN, Monteiro JS, Rodrigues EC, Peres PLP. Breastfeeding self-efficacy and associated factors in the context of primary health care, Brazil. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Exclusive breastfeeding is essential to reduce infant morbidity and mortality, as it meets the entire child's nutritional and immunological needs, strengthens the emotional bond between the mother-baby pair and protects against chronic and infectious diseases. Several factors interfere in this practice, among which the woman's self-efficacy stands out because such attitude represents maternal confidence in her ability to breastfeed her child.
Objectives
Evaluating self-efficacy of breastfeeding among women assisted in primary health care units and; verifying the association between socioeconomic and obstetric factors, and between the duration of exclusive breastfeeding and breastfeeding self-efficacy.
Methods
Cross-sectional study carried out with 216 mothers of children under six months, registered in four basic health units in the city of Rio de Janeiro, Brazil. The research was approved by the Ethics and Research Committees of the participating institutions. The Breastfeeding Self-Efficacy Scale - Short Form was used to measure the self-efficacy scores, and the Statistical Package for the Social Science Program was used to analyze such data.
Results
high levels of breastfeeding self-efficacy were associated with six or more prenatal consultations (OR = 0.92, 95% CI 0.84-1.01, p = 0.07), normal birth (OR = 1,25, 95% CI 1.07-1.45, p < 0.001), breastfeeding in the first half hour after delivery (OR = 1,17, 95% CI 1.08 - 1.27, p < 0.001) and the practice of exclusive breastfeeding for 6 months (OR = 1,86, 95% CI 1.27-2.27, p < 0.001).
Conclusions
prenatal care, vaginal delivery, breastfeeding in the first half hour of life and the practice of exclusive breastfeeding were related to the high and medium level of breastfeeding self-efficacy. The knowledge of the self-efficacy degree and the determining factors for the breastfeeding enable health professionals to implement effective interventions for promoting, protecting and supporting breastfeeding
Key messages
Maternal self-efficacy contributes to prevent early weaning and, thus, to reduce infant morbidity and mortality. Awareness of the determining factors of breastfeeding enables the implementation of effective interventions to promote and support breastfeeding.
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Affiliation(s)
- M H N Souza
- Nursing School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - J S Monteiro
- Nursing School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - E C Rodrigues
- Nursing School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - P L P Peres
- Nursing School, State University of Rio de Janeiro, Rio de Janeiro, Brazil
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Marins T, Rodrigues EC, Bortolini T, Melo B, Moll J, Tovar-Moll F. Structural and functional connectivity changes in response to short-term neurofeedback training with motor imagery. Neuroimage 2019; 194:283-290. [PMID: 30898654 DOI: 10.1016/j.neuroimage.2019.03.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 03/10/2019] [Accepted: 03/12/2019] [Indexed: 12/31/2022] Open
Abstract
Recent findings have been challenging current understanding of how fast the human brain change its structural and functional connections in response to training. One powerful way to deepen the inner workings of human brain plasticity is using neurofeedback (NFB) by fMRI, a technique that allows self-induced brain plasticity by means of modulating brain activity in real time. In the present randomized, double-blind and sham-controlled study, we use NFB to train healthy individuals to reinforce brain patterns related to motor execution while performing a motor imagery task, with no overt movement. After 1 h of NFB training, participants displayed increased fractional anisotropy (FA) in the sensorimotor segment of corpus callosum and increased functional connectivity of the sensorimotor resting state network. Increased functional connectivity was also observed in the default mode network. These results were not observed in the control group, which was trained with sham feedback. To our knowledge, this is the first demonstration of white matter FA changes following a very short training schedule (<1 h). Our results suggest that NFB by fMRI can be an interesting tool to explore dynamic aspects of brain plasticity and open new venues for investigating brain plasticity in healthy individuals and in neurological conditions.
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Affiliation(s)
- T Marins
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, RJ, Brazil; Post-Graduate Program in Morphological Sciences, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - E C Rodrigues
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, RJ, Brazil; Augusto Motta University (Unisuam), Rio de Janeiro, RJ, Brazil
| | - T Bortolini
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, RJ, Brazil
| | - Bruno Melo
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, RJ, Brazil
| | - J Moll
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, RJ, Brazil; Post-Graduate Program in Morphological Sciences, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - F Tovar-Moll
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, RJ, Brazil; Post-Graduate Program in Morphological Sciences, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
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Affiliation(s)
- ASP Vieira
- Instituto Federal do Mato Grosso, Brazil
| | - XR Souza
- Instituto Federal do Mato Grosso, Brazil
| | | | - DC Sousa
- Instituto Federal do Mato Grosso, Brazil
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Esteves PO, Oliveira LAS, Nogueira-Campos AA, Saunier G, Pozzo T, Oliveira JM, Rodrigues EC, Volchan E, Vargas CD. Motor planning of goal-directed action is tuned by the emotional valence of the stimulus: a kinematic study. Sci Rep 2016; 6:28780. [PMID: 27364868 PMCID: PMC4929477 DOI: 10.1038/srep28780] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 06/08/2016] [Indexed: 12/03/2022] Open
Abstract
The basic underpinnings of homeostatic behavior include interacting with positive items and avoiding negative ones. As the planning aspects of goal-directed actions can be inferred from their movement features, we investigated the kinematics of interacting with emotion-laden stimuli. Participants were instructed to grasp emotion-laden stimuli and bring them toward their bodies while the kinematics of their wrist movement was measured. The results showed that the time to peak velocity increased for bringing pleasant stimuli towards the body compared to unpleasant and neutral ones, suggesting higher easiness in undertaking the task with pleasant stimuli. Furthermore, bringing unpleasant stimuli towards the body increased movement time in comparison with both pleasant and neutral ones while the time to peak velocity for unpleasant stimuli was the same as for that of neutral stimuli. There was no change in the trajectory length among emotional categories. We conclude that during the “reach-to-grasp” and “bring-to-the-body” movements, the valence of the stimuli affects the temporal but not the spatial kinematic features of motion. To the best of our knowledge, we show for the first time that the kinematic features of a goal-directed action are tuned by the emotional valence of the stimuli.
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Affiliation(s)
- P O Esteves
- Laboratório de Neurobiologia II, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - L A S Oliveira
- Programa de Pós-graduação em Ciências da Reabilitação - Centro Universitário Augusto Motta, Rio de Janeiro, Brasil
| | - A A Nogueira-Campos
- Departamento de Fisiologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Juiz de Fora, Brasil
| | - G Saunier
- Laboratório de Cognição Motora, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brasil
| | - T Pozzo
- INSERM - U1093 Cognition, Action, et Plasticité Sensorimotrice, Campus Universitaire, UFR STAPS, Dijon, France
| | - J M Oliveira
- Laboratório de Neurobiologia II, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - E C Rodrigues
- Programa de Pós-graduação em Ciências da Reabilitação - Centro Universitário Augusto Motta, Rio de Janeiro, Brasil
| | - E Volchan
- Laboratório de Neurobiologia II, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - C D Vargas
- Laboratório de Neurobiologia II, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
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Bressan MC, Rossato LV, Rodrigues EC, Alves SP, Bessa RJB, Ramos EM, Gama LT. Genotype x environment interactions for fatty acid profiles in Bos indicus and Bos taurus finished on pasture or grain. J Anim Sci 2011; 89:221-32. [PMID: 21178183 DOI: 10.2527/jas.2009-2672] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A study was conducted to characterize lipid profiles in the M. longissimus thoracis of commercial Brazilian beef and to assess how those profiles are influenced by finishing system, genetic group, and their interaction. Intramuscular fat (IMF) and fatty acid (FA) profiles were determined in 160 bulls of the Bos taurus (n = 75) and Bos indicus (n = 85) genetic groups, finished on pasture (n = 46) or with grain supplementation (n = 114) and slaughtered in a commercial abattoir. Finishing system had a major impact on the deposition of IMF, as well as on the concentration of SFA, PUFA, and their ratio, but genetic groups showed important differences in the ability to convert SFA into cis-9 MUFA and to convert 16:0 into 18:0. When compared with pasture-finished animals, those finished with grain had greater content of IMF and SFA (P < 0.01), similar amounts of MUFA (P > 0.05), and about one-half the amount of PUFA (P < 0.01). Except for MUFA, differences in FA profiles among finishing systems were mostly mediated through their effect on IMF, even though the relationship of IMF with groups of FA differed among finishing systems. Under grain finishing, B. taurus had less SFA and greater MUFA than B. indicus (P < 0.01), but no differences were observed in PUFA (P > 0.05). With pasture-finishing, no differences were observed among the 2 genetic groups in SFA and MUFA (P > 0.05), but PUFA were decreased in B. taurus (P < 0.01). When genetic groups were compared in grain-finishing, B. taurus had a decreased ability for elongation and B. indicus had a decreased aptitude for desaturation of FA. On the other hand, with pasture-finishing a greater deposition of intermediate FA from ruminal biohydrogenation was observed in B. indicus than in B. taurus. Overall, FA profiles were affected more by finishing system in B. indicus than in B. taurus.
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Affiliation(s)
- M C Bressan
- Universidade Federal de Lavras, C.P. 37, Lavras, CEP 37200-000, Minas Gerais, Brazil.
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Peresi JT, Almeida IA, Lima SI, Marques DF, Rodrigues EC, Fernandes SA, Gelli DS, Irino K. [Food borne disease outbreaks caused by Salmonella enteritidis]. Rev Saude Publica 1998; 32:477-83. [PMID: 10030065 DOI: 10.1590/s0034-89101998000500011] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE It is to describe outbreaks of salmonellosis reported from July 1993 through June 1997 in the Northwest region of S. Paulo State, Brazil, one of the areas where several foodborne outbreaks of salmonellosis have been recently detected. METHOD Data of 19 epidemiological investigations were analysed; 87 stool specimens and 38 food samples (including 12 of shell eggs) were processed for microbiological analysis. Salmonella strains were identified by serotyping, phagetyping and antimicrobial susceptibility testing. RESULTS There were 906 ill persons including 295 hospitalized patients. Phage type 4 (PT 4) Salmonella Enteritidis strains were isolated from 80.5% of stool samples, from all food samples and from 41.7% of eggs. Of the outbreaks, 95.7% were associated with the consumption of food containing raw or undercooked eggs. All strains were susceptible to the 13 antimicrobials, except the strains from the nosocomial outbreak. CONCLUSIONS The results obtained show the need for the implementation of control measures regarding egg and storage, as well as for guidance to the public as to the risks involved in the consumption of inadequately prepared eggs.
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Affiliation(s)
- J T Peresi
- Laboratório I de São José do Rio Preto, Instituto Adolfo Lutz, Brasil
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Coelho HS, Artemenko SR, Martins CN, de Carvalho DM, Valente J, Rodrigues EC, Alves LDS, Martins ML. [Prevalence of virus B infection in a hospital community]. Rev Soc Bras Med Trop 1990; 23:71-6. [PMID: 2104456 DOI: 10.1590/s0037-86821990000200002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The authors studied the prevalence of HBV markers among health care personnel of the University Hospital of the Federal University of Rio de Janeiro. The aim of study was to identify the high risk groups, in order to counsel vaccination of those groups, in order to counsel vaccination of those groups at risk as a routine. As a control group, a group of office workers of the hospital were chosen. A significant difference of incidence of HBV markers, mainly in surgeons (40%) and hemodialysis unit personnel (36.4%) when compared to the control group, was observed (p less than 0.05). The incidence increased with age and the time spent in the profession. The authors concluded that vaccination is indicated in surgeons hemodialysis personnel, dentists and laboratory personnel.
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Affiliation(s)
- H S Coelho
- Serviços de Clínica Médica, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Brasil
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Toledo SDA, Gomide W, Rodrigues EC, Holland CV. [Hemoglobin levels in school children of São Paulo, Brazil]. Rev Saude Publica 1973; 7:377-80. [PMID: 4791551 DOI: 10.1590/s0034-89101973000400007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Com o objetivo de obter dados para avaliação do estado nutritivo dos escolares, o Serviço de Saúde Escolar da Secretaria da Educação do Estado de São Paulo, Brasil, realizou um inquérito laboratorial, usando como parâmetro a determinação da taxa hemoglobínica numa amostra de 20% dos 2.440 alunos do Grupo Escolar "Leonor Quadros", localizado em um bairro periférico da cidade de São Paulo. O método de exame utilizado constituiu na dosagem fotocolorimétrica da hemoglobina, empregando-se para isto um fotocolorímetro fabricado pelo Laboratório Ames do Brasil S/A. A taxa hemoglobínica média encontrada foi de 13,0 g%, sendo a média masculina de 13,09 g% e a feminina de 12,99g%. As taxas mínimas e máximas foram de 7,5 g% e 17,09 g%. Para melhor ordenação dos resultados, e de acordo com o nível hemoglobínico obtido, os escolares foram divididos em três grupos: o 1.° compreendendo escolares com nível hemoglobínico até 10,99 g%; o 2.º, entre 11,0 g% e 12,99g%, e o 3.°, acima de 13,0%. No primeiro grupo foram encontrados 2,3% dos alunos; no segundo, 36,2%, e no terceiro, 61,4%, verificando-se que 96% dos escolares apresentam nível hemoglobínico na faixa de 11,0 g% e mais. À vista dos resultados obtidos, considerou-se de razoável para bom o estado nutritivo dos escolares examinados.
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Rodrigues EC, Souza GA, Martins WA, Soibelman I, Meira AR, Faustino NC, Prado AR. [Survey of health conditions of students of the primary school from the Secretaria dos Negocios de Educação do Governo do Estado de São Paulo, Brazil]. Rev Saude Publica 1972; 6:343-59. [PMID: 4661000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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