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Sleep habits and screen use in an adolescent population during the COVID-19 pandemic
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Vieira, Paula Manuel

; Cascais, Inês

; Alba, Diana

; Bernardo, Ana

; Faria, João

; Feio, Ana

; Coelho, Margarida Paiva

; Ribeiro, Maria do Céu

; Gomes, Lúcia

; Fonseca, Paula

; Rios, Marta

Nascer e Crescer

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jun 2024, Volume 33 N. 2 Pages 100 - 110

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

Abstract Introduction: Screen use among adolescents has increased, with excessive screen time associated with poor sleep. Isolation due to the COVID-19 pandemic may have exacerbated these problems. This study aimed to characterize adolescents’ sleep and screen use behaviors during the COVID-19 pandemic lockdown. Methods: This was a multicenter, cross-sectional, descriptive study of adolescents aged 10 to 18 years evaluated in an Adolescent Medicine outpatient visit of four hospitals in northern Portugal between January and March 2021. Adolescents completed a survey with questions about screen use and sleep and the Pediatric Daytime Sleepiness Scale (Portuguese version). Results: A total of 131 adolescents (66.4% female; median age 15 years) were enrolled during the study period. Participants reported a median sleep duration of nine hours on weekdays and 10 hours on weekends, with 25.9% sleeping less than eight hours on weekdays. Approximately 80% reported good or very good sleep quality. Onset insomnia was identified in 39.7% and excessive daytime sleepiness (EDS) in 13.7%. Most adolescents (74.0%) reported screen time of ≥6 hours/day. Screens were mainly used for attending classes and talking to friends. Smartphones were available in the bedroom at night for 83.2%, while 61.1% had televisions, 57.3% had computers, and 16.0% had gaming consoles in their bedrooms. Fifty-five percent used screens within an hour of bedtime every day. Screen time ≥6 hours/day and having a computer or smartphone in the bedroom at night were associated with shorter sleep duration on weekdays and EDS. Screen use within an hour of bedtime ≥4 times/week was associated with sleep-onset insomnia, shorter weekday sleep duration, and EDS. Discussion: Online classes during the COVID-19 lockdown may explain the use of devices ≥6 hours/day. Although most adolescents reported normal median sleep time and subjective good or very good sleep quality, screen use ≥6 hours/day and within one hour before bedtime was associated with sleep deprivation on weekdays and EDS. Conclusions: Excessive screen time during the pandemic appears to have had a negative impact on adolescents’ sleep. These findings underscore the importance of identifying and intervening in these issues when addressing adolescent global health.

Resumo Introdução: O uso de ecrãs tem vindo a aumentar entre os adolescentes, estando descrita a associação entre tempo excessivo de ecrã e menor quantidade e pior qualidade de sono. A pandemia de COVID-19 poderá ter agravado estes problemas. Este estudo pretendeu caracterizar o comportamento dos adolescentes relativamente ao sono e uso de ecrãs durante o confinamento imposto pela pandemia de COVID-19. Métodos: Estudo descritivo, transversal, multicêntrico de adolescentes dos 10 aos 18 anos avaliados numa consulta externa de Medicina do Adolescente de quatro hospitais do norte de Portugal entre janeiro e março de 2021. Os adolescentes preencheram um questionário com perguntas sobre o uso de ecrãs e o sono e a Pediatric Daytime Sleepiness Scale (versão portuguesa). Resultados: Foram incluídos 131 adolescentes (66,4% do género feminino; idade mediana de 15 anos) durante o período de estudo. Os participantes relataram uma mediana de duração do sono de 9 horas durante a semana e 10 horas ao fim-de-semana, com 25,9% a dormir menos do que oito horas diárias durante a semana. Cerca de 80% referiu ter um sono de boa ou muito boa qualidade. Foi identificada insónia inicial em 39,7% e sonolência diurna excessiva (SDE) em 13,7% dos participantes. A maioria (74,0%) referiu um tempo de ecrã ≥6 horas/dia. Os ecrãs foram usados maioritariamente para assistir a aulas e conversar com amigos. Um total de 83,2% dos adolescentes referiu dormir com o telemóvel no quarto e 61,1% referiu ter televisão, 57,3% computador e 16,0% consola de jogos no quarto. Cinquenta e cinco por cento usava ecrãs todos os dias na hora antes de dormir. Um tempo de ecrã ≥6 horas/dia e ter computador ou telemóvel no quarto durante a noite associou-se a uma menor duração do sono durante a semana e SDE. O uso de ecrãs na hora antes de dormir associou-se a insónia inicial, menor duração do sono durante a semana e SDE. Discussão: As aulas online poderão explicar o uso frequente de ecrãs (≥6 horas/dia). Embora a mediana de duração do sono tenha sido normal e a maioria dos adolescentes tenha referido ter um sono de boa ou muito boa qualidade, o uso de ecrãs ≥6 horas/dia e na hora antes de dormir associou-se a privação de sono durante a semana e SDE. Conclusão: O uso excessivo de ecrãs durante a pandemia parece ter tido um impacto negativo no sono dos adolescentes. Estes dados reforçam a necessidade de identificar e intervir nestes problemas durante a abordagem de saúde global do adolescente.

https://doi.org/10.25753/birthgrowthmj.v33.i2.28292

An exploratory study of the functional significance of the floral secretory structures in two Miconia species (Melastomataceae) Melastomataceae (Melastomataceae
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FEIO, ANA CARLA

; FURTADO, ANA CATARINA S.

; COUTINHO, ÍTALO ANTÔNIO C.

Anais da Academia Brasileira de Ciências

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2024, Volume 96 Suppl. 3 elocation e20240468

Abstract: En | Text: En | PDF: En

Abstract Aiming to verify whether the diversity of secretory structures with their respective exudates are or not responsible for the attendance of floral visitors in Miconia species, the floral secretory structures of two Amazonian species of Miconia were described and interpreted from the functional perspectives and observations of floral visitors. Flowers and floral visitors were collected in the field for 16 months. The flowers were subjected to standard anatomical analyzes using light and scanning electron microscopy, and the secretory structures were evaluated using histochemical tests. The insects were photographed, collected and identified by a specialist. Floral secretory structures (stigmatic papillae and trichomes at the apex of the ovary) were found in M. alata and M. ciliata. Trichomes were found at the hypanthium of M. alata, and of the sepals and receptacles in M. ciliata. In both species, different hydrophilic compounds were detected in the exudates. Only phenolic compounds were found in the trichomes of the M. ciliata receptacle. This study provides information that confirms the hypothesis that other secretory structures and exudates are related to floral visitors, and adds new informations about the features of the secretory structures in Miconia. 1 months microscopy tests photographed specialist stigmatic ovary M receptacle

https://doi.org/10.1590/0001-3765202420240468

Application of vascular photobiomodulation therapy in individuals with low back pain and its relationship with global methylation
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Moroti-Perugini, Layse Rafaela

; Cônsolo, Isadora Fernandes

; Feio-Ribeiro, Ana Francisca Rocha

; Andraus, Rodrigo Antonio

; Poli, Regina Célia

BrJP

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dec 2023, Volume 6 N. 4 Pages 353 - 358

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

RESUMO JUSTIFICATIVA E OBJETIVOS: A lombalgia está entre as condições mais incapacitantes no mundo e; dentre os fatores epigenéticos, a metilação em ilhas CpG de regiões promotoras de genes pode modular a expressão gênica permitindo uma possível correlação ao desenvolvimento da doença, como também pode trazer esclarecimentos a respeito do tratamento a ser escolhido. O objetivo deste estudo foi verificar a eficácia da terapia através do uso do ILIB modificado relacionada ao processo de metilação de DNA na lombalgia. Os objetivos secundários deste estudo foram a investigação da intensidade da dor, sexo, dados sociodemográficos e perfil físico-funcional. MÉTODOS: Este estudo, desenvolvido em um município da região sul do Brasil, caracteriza-se como prospectivo. A amostra deste estudo foi composta por 30 participantes, de ambos os sexos, com idade média de 41,77 anos. Foram analisados os seguintes aspectos: características antropométricas, metilação global através do método ELISA, nível de dor, nível de atividade física, incapacidades funcionais e nível de hesitação para realizar atividades relacionada ao trabalho e atividade física. RESULTADOS: Observou-se associação estatisticamente significativa entre os níveis de metilação antes e a após aplicação do tratamento para grupo experimental e placebo (p<0,005) demostrando uma média responsividade entre as variáveis metilação e tratamento (d=0,5). No entanto, não houve nenhuma outra associação estatística correlacionada as demais variáreis do trabalho. CONCLUSÃO: Os resultados obtidos neste estudo sugerem que há necessidade mais estudos relacionados a identificação de genes específicos na metilação, além da necessidade de padronização de dosimetria utilizadas para aplicação do laser ILIB de forma transcutânea, em artéria radial. OBJETIVOS epigenéticos doença escolhido dor sexo físicofuncional. físicofuncional físico funcional. funcional físico-funcional MÉTODOS Brasil caracterizase caracteriza se prospectivo 3 participantes sexos 4177 41 77 41,7 anos aspectos antropométricas ELISA física RESULTADOS Observouse Observou p<0,005 p0005 p 0 005 (p<0,005 d=0,5. d05 d d=0,5 . 5 (d=0,5) entanto CONCLUSÃO transcutânea radial 417 4 7 41, p<0,00 p000 00 (p<0,00 d0 d=0, (d=0,5 p<0,0 p00 (p<0,0 d=0 (d=0, p<0, p0 (p<0, d= (d=0 p<0 (p<0 (d= p< (p< (d (p

ABSTRACT BACKGROUND AND OBJECTIVES: Low back pain is among the most disabling conditions worldwide, and among the epigenetic factors, methylation in CpG islands of gene promoter regions can modulate gene expression, potentially correlating with the development of the disease and providing insights into the choice of treatment. The objective of this study was to assess the efficacy of therapy using modified ILIB related to DNA methylation processes in low back pain. Secondary objectives of this study included investigating pain intensity, gender, sociodemographic data, and physical-functional profile. METHODS: This prospective study was conducted in a municipality in the southern region of Brazil. The sample consisted of 30 participants of both genders, with an average age of 41.77 years. The following aspects were analyzed: anthropometric characteristics, global methylation using the ELISA method, pain level, physical activity level, functional disabilities, and hesitancy level related to work and physical activity-related activities. RESULTS: A statistically significant association was observed between methylation levels before and after treatment application for the experimental and placebo groups (p < 0.005), demonstrating a mean responsiveness between methylation and treatment (d = 0.5). However, there were no other statistically significant associations correlated with the other work variables. CONCLUSION: The results obtained in this study suggest the need for further research related to the identification of specific genes in methylation, as well as the standardization of dosimetry used for transcutaneous ILIB laser application in the radial artery. OBJECTIVES worldwide factors expression intensity gender data physicalfunctional profile METHODS Brazil 3 genders 4177 41 77 41.7 years analyzed characteristics method disabilities activityrelated activities RESULTS p 0.005, 0005 0.005 , 0 005 0.005) d 0.5. 05 0.5 . 5 0.5) However variables CONCLUSION artery 417 4 7 41. 000 0.00 00 0. 0.0

https://doi.org/10.5935/2595-0118.20230090-en

On the true identity of Mendoncia “stellate” trichomes stellate “stellate
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Silva, Fabio Araújo da

; Feio, Ana Carla

; Mendonça, Ranielle de Araújo

; Kameyama, Cíntia

; Zappi, Daniela C.

Acta Botanica Brasilica

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2023, Volume 37 elocation e20220245

Abstract: En | Text: En | PDF: En

ABSTRACT The present survey of leaf-blade trichomes of Mendoncia used SEM and light microscopy to investigate the diversity of trichome types in Neotropical and Paleotropical species of the genus. The eglandular trichomes are filiform, uniseriate, with asymmetric epidermal cells arranged radially around the trichome, these epidermal cells may be short or elongated, oriented in two groups. These cells, when elongated, are covered with epicuticular wax, forming smooth thick plates. African species have dendritic but not stellate trichomes. Character states such as number and length of basal cells were shown to overlap within the same species and therefore their use in isolation is not recommended for subgeneric classification of Mendoncia. Neotropical Mendoncia trichomes with well-developed epidermal cells arranged radially around the trichome appear to be unique to this group, without parallel in other plant families. leafblade leaf blade genus filiform uniseriate elongated groups wax plates welldeveloped well developed group families

https://doi.org/10.1590/1677-941x-abb-2022-0245

Structural and histochemical aspects in leaves of six species of Anemia (Anemiaceae) occurring in rocky outcrops
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MORAES NETO, PEDRO G. DE

; SILVA, NATÂNIA P.P. DA

; FURTADO, ANA CATARINA S.

; FEIO, ANA CARLA

Anais da Academia Brasileira de Ciências

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2022, Volume 94 N. 3 elocation e20210392

Abstract: En | Text: En | PDF: En

Abstract Rocky outcrops are known for low humidity, rainfall and high solar radiation, factors that limit the development of some vegetables. However, some species of the genus Anemia occurring in these environments. Thus, understanding the anatomical characters present in these vegetables are important for botanical and biodiversity knowledge in rock fields. We described the leaf anatomy of six species of Anemia to identify characters adapted to rocky outcrops for ferns. Herbarium samples were rehydrated. Field-collected leaves, were also sampled, the material was subjected to standard anatomical study by light microscopy, and secretions were evaluated by histochemical of the secondary compounds, with ruthenium red, tannic acid, ferric chloride, lugol, Sudan black B, vanillin/hydrochloric acid, Dragendorff’s reagent and ponceau xylidine. Histochemical tests were positive for phenolic compounds, alkaloids, polysaccharides, and proteins in A. buniifolia, A. oblongifolia, A. presliana, and A. trichorhiza. Our findings revealed that several structural and histochemical characters of Anemia with trichomes, conical stegmatas, phenolic compounds, mucilages and alkaloids are related to reducing water loss, providing an adaptive value to species in extreme environments, such as rocky outcrops, in addition to new data relevant to the group taxonomy, such as the presence of amphistomatic leaves in A. trichorhiza.

https://doi.org/10.1590/0001-3765202220210392

Association between vitamin D serum levels and clinical, laboratory, and parasitological parameters in patients with malaria from an endemic area of the Amazon
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Setto, Janaina Maria

; Libonati, Rosana Maria Feio

; Ventura, Ana Maria Revoredo da Silva

; Chaves, Tânia do Socorro Souza

; Sequeira, Carina Guilhon

; Martins Filho, Arnaldo Jorge

; Machado, Ricardo Luiz Dantas

; Franceschin, Sylvia do Carmo Castro

; Barreto, Jéssica Thuanny Teixeira

Revista da Sociedade Brasileira de Medicina Tropical

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2022, Volume 55 elocation e0077-2021

Abstract: En | Text: En | PDF: En

ABSTRACT Background: Some studies have suggested the importance of vitamin D [25(OH)D] in malaria clinical practice. The prevalence of 25(OH)D deficiency in the Amazon population is not well known, and there are few studies in patients with malaria. This study aimed to evaluate 25(OH)D serum levels in patients with malaria and determine their relationships with epidemiological, clinical, laboratory, and parasitemia data. Methods: An analytical cross-sectional study of 123 patients with malaria and 122 individuals without malaria was performed in Itaituba, Pará, Brazil, from January 2018 to October 2019, by evaluating sociodemographic, clinical-epidemiological, parasitological, and laboratory data and adopting a 5% significance level. Parametric tests (Student's t-test), non-parametric tests (Mann-Whitney U), and Spearman’s correlation ([rs], for non-parametric variables) were used according to the nature of the distribution of the variables. For the qualitative variables, Pearson's chi-square test, Fisher's exact test, and the G test were used. Spearman's correlation was used to compare the results of the 25(OH)D levels and blood counts performed among patients and the control group. Results: Malaria patients residing in a mining area had 25(OH)D serum levels that were significantly lower than those in the control group residing in the mining area, though both were within normal levels. Red blood cell counts had an inverse correlation with parasitemia (Plasmodium falciparum), and platelet levels had an inverse correlation with parasitemia (Plasmodium vivax). 25(OH)D deficiency was evidenced in Itaituba, in the state of Pará, which is an endemic area of malaria in the Amazon region.

https://doi.org/10.1590/0037-8682-0077-2021

DIAGNÓSTICOS DE ENFERMAGEM EM PESSOAS SOROPOSITIVAS PELO VÍRUS LINFOTRÓPICO T HUMANO
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Souza, Luzinete Santos

; Sampaio, Daniela Carneiro

; Rivemales, Maria da Conceição Costa

; Oliveira, Lavinya Lima Cordeiro

; Jesus, Ana Paula Santos de

; Lima, Claudia Feio da Maia

; Félix, Nuno Damácio de Carvalho

Revista Baiana de Enfermagem

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2020, Volume 34 elocation e37991

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

Objective to identify nursing diagnoses in symptomatic and seropositive people for the human T lymphotropic virus. Method documentary research, carried out with the medical records of people seropositive for the human T lymphotropic virus, registered at the Testing and Counseling Center of a municipality in inland Bahia state. The analysis of the records was performed based on Taxonomy II of NANDA-I 2018-2020. Results 13 nursing diagnoses were identified, distributed in five domains: Comfort; Elimination and Exchange; Activity and rest; Self-perception; Coping/Stress Tolerance. The most prevalent diagnoses were: Chronic Pain, in 21 (100%) of seropositive individuals, urinary incontinence in nine (43%), and Impaired ambulation in 8 (38%). Conclusion the identification of diagnoses in symptomatic and seropositive people for the human T lymphotropic virus provides support for the construction of specific nursing care plans.

Objetivo identificar los diagnósticos de enfermería en personas sintomáticas y seropositivas para el virus linfotrópico T humano. Método investigación documental, realizada en los registros médicos de personas seropositivas para el virus linfotrópico T humano, registradas en el Centro de Pruebas y Asesoramiento de un municipio en el interior del estado de Bahía. El análisis de los registros se realizó sobre la base de la Taxonomía II de NANDA-I 2018-2020. Resultados se identificaron 13 diagnósticos de enfermería, distribuidos en cinco dominios: Confort; Eliminación e Intercambio; Actividad y descanso; Auto-percepción; Afrontamiento/tolerancia al estrés. Los diagnósticos más frecuentes fueron: Dolor crónico, en 21 (100%) de individuos seropositivos, incontinencia urinaria en nueve (43%) y deterioro de la ambulación en 8 (38%). Conclusión la identificación de diagnósticos en personas sintomáticas y seropositivas para el virus linfotrópico T humano proporciona apoyo para la construcción de planes específicos de cuidados de enfermería.

Objetivo identificar diagnósticos de enfermagem em pessoas sintomáticas e soropositivas para o vírus linfotrópico T humano. Método pesquisa documental, realizada nos prontuários de pessoas soropositivas para o vírus linfotrópico T humano, cadastradas no Centro de Testagem e Aconselhamento de um município do interior do estado da Bahia. A análise dos registros foi realizada com base na Taxonomia II da NANDA-I 2018-2020. Resultados foram identificados 13 diagnósticos de enfermagem distribuídos em 5 domínios: Conforto; Eliminação e Troca; Atividade e repouso; Autopercepção; Enfrentamento/Tolerância ao estresse. Os diagnósticos mais prevalentes foram: Dor crônica, em 21 (100%) dos soropositivos, Incontinência urinária em nove (43%), e Deambulação prejudicada em 8 (38%). Conclusão a identificação dos diagnósticos em pessoas sintomáticas e soropositivas para o vírus linfotrópico T humano fornece subsídios para a construção de planos de cuidados de enfermagem específicos.

https://doi.org/10.18471/rbe.v34.37991 70 downloads

Genome-wide DNA methylation profile in the peripheral blood of cocaine and crack dependents
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Camilo, Caroline

; Maschietto, Mariana

; Vieira, Henrique C.

; Tahira, Ana C.

; Gouveia, Gisele R.

; Feio dos Santos, Ana C.

; Negrão, André B.

; Ribeiro, Marcelo

; Laranjeira, Ronaldo

; Vallada, Homero

; Brentani, Helena

Brazilian Journal of Psychiatry

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dec 2019, Volume 41 N. 6 Pages 485 - 493

Abstract: En | Text: En | PDF: En

Objective: Cocaine use disorders (CUDs) represent a major public health problem in many countries. To better understand the interaction between the environmental modulations and phenotype, the aim of the present study was to investigate the DNA methylation pattern of CUD patients, who had concomitant cocaine and crack dependence, and healthy controls. Methods: We studied DNA methylation profiles in the peripheral blood of 23 CUD patients and 24 healthy control subjects using the Illumina Infinium HumanMethylation450 BeadChip arrays. Results: Comparison between CUD patients and controls revealed 186 differentially methylated positions (DMPs; adjusted p-value [adjP] < 10-5) related to 152 genes, with a subset of CpGs confirmed by pyrosequencing. DNA methylation patterns discriminated CUD patients and control groups. A gene network approach showed that the EHMT1, EHMT2, MAPK1, MAPK3, MAP2K1, and HDAC5 genes, which are involved in transcription and chromatin regulation cellular signaling pathways, were also associated with cocaine dependence. Conclusion: The investigation of DNA methylation patterns may contribute to a better understanding of the biological mechanisms involved in CUD.

https://doi.org/10.1590/1516-4446-2018-0092 1302 downloads

Atualização da Diretriz Brasileira de Dislipidemias e Prevenção da Aterosclerose – 2017
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Faludi, André Arpad

; Izar, Maria Cristina de Oliveira

; Saraiva, José Francisco Kerr

; Chacra, Ana Paula Marte

; Bianco, Henrique Tria

; Afiune Neto, Abrahão

; Bertolami, Adriana

; Pereira, Alexandre C.

; Lottenberg, Ana Maria

; Sposito, Andrei C.

; Chagas, Antonio Carlos Palandri

; Casella Filho, Antonio

; Simão, Antônio Felipe

; Alencar Filho, Aristóteles Comte de

; Caramelli, Bruno

; Magalhães, Carlos Costa

; Negrão, Carlos Eduardo

; Ferreira, Carlos Eduardo dos Santos

; Scherr, Carlos

; Feio, Claudine Maria Alves

; Kovacs, Cristiane

; Araújo, Daniel Branco de

; Magnoni, Daniel

; Calderaro, Daniela

; Gualandro, Danielle Menosi

; Mello Junior, Edgard Pessoa de

; Alexandre, Elizabeth Regina Giunco

; Sato, Emília Inoue

; Moriguchi, Emilio Hideyuki

; Rached, Fabiana Hanna

; Santos, Fábio César dos

; Cesena, Fernando Henpin Yue

; Fonseca, Francisco Antonio Helfenstein

; Fonseca, Henrique Andrade Rodrigues da

; Xavier, Hermes Toros

; Mota, Isabela Cardoso Pimentel

; Giuliano, Isabela de Carlos Back

; Issa, Jaqueline Scholz

; Diament, Jayme

; Pesquero, João Bosco

; Santos, José Ernesto dos

; Faria Neto, José Rocha

; Melo Filho, José Xavier de

; Kato, Juliana Tieko

; Torres, Kerginaldo Paulo

; Bertolami, Marcelo Chiara

; Assad, Marcelo Heitor Vieira

; Miname, Márcio Hiroshi

; Scartezini, Marileia

; Forti, Neusa Assumpta

; Coelho, Otávio Rizzi

; Maranhão, Raul Cavalcante

; Santos Filho, Raul Dias dos

; Alves, Renato Jorge

; Cassani, Roberta Lara

; Betti, Roberto Tadeu Barcellos

; Carvalho, Tales de

; Martinez, Tânia Leme da Rocha

; Giraldez, Viviane Zorzanelli Rocha

; Salgado Filho, Wilson

Arquivos Brasileiros de Cardiologia

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aug 2017, Volume 109 N. 2 Pages 1 - 76

Abstract: Pt | Text: Pt | PDF: Pt

https://doi.org/10.5935/abc.20170121 199102 downloads

10.

Structure and distribution of glandular trichomes in three species of Bignoniaceae
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FRÓES, Fabíola Fernandes Paiva de Castro

; GAMA, Thália do Socorro Serra

; FEIO, Ana Carla

; DEMARCO, Diego

; AGUIAR-DIAS, Ana Cristina Andrade de

Acta Amazonica

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dec 2015, Volume 45 N. 4 Pages 347 - 354

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

Tricomas glandulares desempenham papel importante na caracterização morfológica de Bignoniaceae e, devido à grande diversidade de formas e funções que esses tricomas apresentam, o objetivo desse estudo foi inventariar os tricomas glandulares presentes no eixo vegetativo aéreo de Amphilophium magnoliifolium, Martinella obovata. e Stizophyllum riparium, bem como analisar sua estrutura e registrar a participação de formigas nessas espécies. Amostras frescas da região mediana à apical das lâmina foliolar, pecíolo e nó foram fixadas e processadas de acordo com os métodos usuais para microscopia de luz e eletrônica de varredura. Os tricomas glandulares encontrados nas espécies foram: peltados, capitados, estipitados e pateliformes/cupuliformes. Dentre esses tipos o mais abundante foi o tricoma peltado, apresentando também uma distribuição mais uniforme que os demais. Os tricomas pateliformes/cupuliformes estavam em regiões mais específicas, como profilos, lâmina foliolar e na região nodal. Martinella obovata foi a única espécie que apresentou os tricomas capitados e estipitados, amplamente distribuídos ao longo de todo eixo vegetativo aéreo. Em todas as espécies foram encontradas formigas, principalmente nas regiões nodais. A ocorrência do tricoma capitado é relatada pela primeira vez para o gênero.

Glandular trichomes play a major role in the morphological characterization of the Bignoniaceae. Due to their great diversity of forms and functions, this study aimed to inventory the glandular trichomes present in the aerial vegetative axis of Amphilophium magnoliifolium, Martinella obovata and Stizophyllum riparium, analyze their structure and register the participation of ants in these plants. Fresh samples from the nodal region, petiole and from medium to apical regions of the leaflet blade were fixed and processed according to usual methods in light and scanning electron microscopies. The glandular trichomes found were: peltate, capitate, stipitate, and patelliform/cupular. Peltate trichomes are the most abundant ones and present the most uniform distribution. Patelliform/cupular trichomes occur at specific regions, such as prophylls, leaflet blade and nodal regions. Martinella obovata is the only species that presents capitate and stipitate trichomes, which are widely distributed along the entire aerial vegetative axis. Ants were found in all species, mainly at nodal regions. The occurrence of the capitate-type trichome is reported for the first time to the genus.

https://doi.org/10.1590/1809-4392201404393 4183 downloads

11.

Confluências e divergências conceituais em educação em saúde
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Feio, Ana

; Oliveira, Clara Costa

Saúde e Sociedade

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jun 2015, Volume 24 N. 2 Pages 703 - 715

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

A educação em saúde conheceu, no último século, profundas mudanças, tanto no plano conceitual como no das práticas dele decorrentes, fruto das transformações por que passou a humanidade em termos políticos, económicos e sociais. O conceito de educação desviou-se da perspectiva instruidora e escolarizadora de crianças e jovens, centrada na transmissão-assimilação de conhecimentos, para uma perspectiva mais abrangente e integradora, centrada na criação de condições que permitem aos indivíduos desenvolverem-se holisticamente na sua multidimensionalidade, em permanente interação com os outros. Por sua vez, o conceito de saúde perdeu o seu pendor negativo de ausência de doença, passando a ser entendido positivamente como um estado de completo bem-estar físico, mental, social e espiritual, em constante mutação ao longo da vida. Nesse sentido, a educação em saúde deixou também de ser vista como a transmissão de informação de caráter higienista-sanitário, orientada para a prevenção ou o tratamento da doença, efetuada em contextos formais, para passar a ser entendida como a capacitação dos indivíduos para controlarem os seus próprios determinantes de saúde, através da criação ou do desenvolvimento de competências de ação. A educação e a saúde passam, pois, a apresentar-se como duas faces de um mesmo processo. Neste trabalho pretendemos, pois, analisar a evolução conceptual em torno da saúde e da educação no século XX, tentando perceber até que ponto essas mudanças conceptuais se têm refletido ao nível das práticas.

Health education underwent, in the last century, profound changes both in its concepts and in the practices that derived from them. These changes are a result of the political, economic and social transformations that have been affecting humanity. The concept of education has shifted from a merely instructive perspective, which focused on the transmission-assimilation of information, to a more comprehensive and integrative perspective, centered on the creation of conditions that enable individuals to develop themselves holistically in their multidimensionality, in constant interaction with others. In turn, the concept of health has lost its negative connotation of absence of disease to be positively understood as a state of complete physical, mental, social and spiritual well-being, constantly changing throughout life. In this sense, health education has also ceased to be seen as the transmission of hygiene-sanitation information oriented to the prevention or treatment of diseases, conducted in formal contexts, and has started to be understood as the qualification of individuals to control their own health determinants through the creation or development of action skills. Therefore, education and health now present themselves as two sides of the same process. In this study, we intend to examine the conceptual evolution concerning health and education in the 20th century in order to understand to what extent these conceptual changes have had a reflection on the practices.

https://doi.org/10.1590/S0104-12902015000200024 9052 downloads

12.

Confluências e divergências conceituais em educação em saúde
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Feio, Ana

; Oliveira, Clara Costa

Saúde e Sociedade

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jun 2015, Volume 24 N. 2 Pages 703 - 715

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

https://doi.org/10.1590/S0104-12902015000200024 443 downloads

13.

Myocarditis associated with Plasmodium vivax malaria: a case report
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Ventura, Ana Maria Revoredo da Silva

; Chaves, Tânia do Socorro Souza

; Monteiro, Julius Caesar Mendes

; Sequeira, Carina Guilhon

; Ohnishi, Maria Deise de Oliveira

; Libonati, Rosana Maria Feio

; Sousa, Rita Catarina Medeiros

; Souza, Jose Maria de

Revista da Sociedade Brasileira de Medicina Tropical

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dec 2014, Volume 47 N. 6 Pages 810 - 813

Abstract: En | Text: En | PDF: En

Malaria remains a major public health problem in Brazil where Plasmodium vivax is the predominant species, responsible for 82% of registered cases in 2013. Though benign, P. vivax infection may sometimes evolve with complications and a fatal outcome. Here, we report a severe case of P. vivax malaria in a 35-year-old Brazilian man from a malaria endemic area, who presented with reversible myocarditis.

https://doi.org/10.1590/0037-8682-0126-2014 2570 downloads

14.

Estruturas secretoras da lâmina foliar de amapá amargo (Parahancornia fasciculata, Apocynaceae): histoquímica e doseamento de flavonoides
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Santos, Ana Carla Feio dos

; Aguiar-Dias, Ana Cristina Andrade de

; Amarante, Cristine Bastos do

; Coelho-Ferreira, Márlia

Acta Amazonica

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dec 2013, Volume 43 N. 4 Pages 407 - 413

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

Amapá amargo (Parahancornia fasciculata (Poir.) Benoist) produz um látex, que se presume ter propriedades medicinais, pois é usado no tratamento da malária, problemas pulmonares, gastrite, e como um agente de cura. Este estudo teve como objetivo analisar estrutural e histoquimicamente os locais de produção e/ou acumúlo de compostos biologicamente ativos, bem como realizar o doseamento de flavonóides presentes no limbo do amapá amargo. Para a análise estrutural e histoquímica foram utilizados protocolos padrão em anatomia vegetal. Considerando que, para o doseamento de flavonóides utilizou-se a espectrometria de absorção na região ultravioleta-visível. O sistema secretor das folhas de amapá amargo é constituído de idioblastos secretores e laticíferos ramificados. Os testes histoquímicos revelaram diferentes tipos de substâncias químicas nos protoplastos celulares de idioblastos e laticíferos. Propriedades farmacológicas do látex de amapa amargo podem ser atribuídas à dois compostos químicos (flavonoides e alcaloides) encontrados neste estudo, ambos estão presentes em idioblastos e laticíferos.

Bitter amapa (Parahancornia fasciculata (Poir.) Benoist) produces a latex, which is presumed to have medicinal properties, as it is used in the treatment of malaria, lung problems, gastritis, and as healing agent. This study aimed to analyze structural and histochemically the sites of production and/or accumulation of biologically active compounds, as well as to determine the kind of flavonoids present in the leaf blade of bitter amapa. For structural and histochemical analysis we used standard protocols in plant anatomy. Whereas to assay flavonoids we used absorption spectrometry in the ultraviolet-visible region. The secretory system of bitter amapa leaves is constituted of both secretory idioblasts and branched laticifers. Histochemical tests revealed different types of chemical substances in the cell protoplast of idioblasts and laticifers. Pharmacological properties of bitter amapa latex can be attributed to two chemical compounds (flavonoids and alkaloids) found in this study, both of them are present in idioblasts and laticifers.

https://doi.org/10.1590/S0044-59672013000400002 3937 downloads

15.

Estruturas secretoras em cipó-d'alho (Mansoa standleyi (Steyerm.) A. H. Gentry, Bignoniaceae): ocorrência e morfologia
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Vilhena-Potiguara, Raimunda Conceição

; Aguiar-Dias, Ana Cristina Andrade de

; Kikuchi, Tatiani Yuriko Souza

; Santos, Ana Carla Feio dos

; Silva, Rolf Junior Ferreira

Acta Amazonica

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sep 2012, Volume 42 N. 3 Pages 321 - 328

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

Espécies de Mansoa são denominadas de "cipó-d'alho", por exalarem odor de alho das partes vegetativas e reprodutivas. Contudo, dados sobre morfologia e distribuição das estruturas secretoras presentes em Mansoa são escassos e ausentes para M. standleyi. O presente trabalho objetivou caracterizar a ocorrência e morfologia das estruturas secretoras do eixo vegetativo aéreo de M. standleyi. Para tanto, amostras da lâmina foliolar e de regiões nodais foram fixadas e submetidas às técnicas histológicas e de microscopia eletrônica de varredura. Testes histoquímicos, com os respectivos controles foram aplicados nas estruturas secretoras em fase secretora. Indivíduos de formigas e moscas, que visitavam a espécie foram amostrados, preservados e identificados por entomólogo. As estruturas secretoras do eixo vegetativo aéreo de M. standleyi estão representadas por tricomas glandulares dos tipos pateliformes e peltados. Todos com desenvolvimento assincrônico e presentes nas regiões nodais e lâmina foliolar, principalmente nas partes mais jovens. Nas regiões nodais, os tricomas formam um complexo secretor e, na lâmina foliolar, estão dispersos. As análises histoquímicas revelaram que os tricomas pateliformes são de fato nectários extraflorais e que os tricomas peltados, apresentam uma fração de alcaloides. Os visitantes das glândulas nodais correspondem a formigas Crematogaster (Formicidae) e Ectatomma brunea (Vespoidea, Formicidae) e moscas Oxysarcodexia (Sarcophagidae, subfamília Utitidae (Ulidiidae). Mansoa standleyi possui as estruturas secretoras do eixo vegetativo aéreo semelhantes às citadas pela literatura para Bignoniaceae, sendo esta a primeira vez, que um nectário extrafloral é descrito para a espécie.

Species of Mansoa are called "cipó-d'alho" because of the smell of garlic that wafts from their vegetative and reproductive parts. Since data on the morphology and occurrence of their secretory structures are scarce and even absent for M. standleyi, the present work characterizes the distribution and morphology of such structures in the vegetative aerial axis of the latter. To do so, samples of the leaf blade and of nodal regions were fixed and examined using histological and scanning electron microscope techniques. Histochemical tests with appropriate controls were carried out on the secretory structures during the secretory phase. Fly and ant individuals that visit the species were sampled, preserved and identified by an entomologist. The secretory structures of the vegetative aerial axis of M. standleyi are peltate and patelliform glandular trichomes. All develop asynchronously and are present in the nodal regions and leaf blade, mainly in their youngest parts. Trichomes form a secretory complex in the nodal regions while they are scattered in the leaf blade. Histochemical analyses revealed that the cupulate and patelliform trichomes are extrafloral nectaries and that the peltate ones present an alkaloid fraction. The visitors of the nodal glands are ants Crematogaster (Formicidae) and Ectatomma brunea (Vespoidea, Formicidae) and flies Oxysarcodexia (Sarcophagidae, subfamily Utitidae [Ulidiidae]). The secretory structures of the vegetative aerial axis of Mansoa standleyi are similar to those reported for Bignoniaceae. An extrafloral nectary is described for M. standleyi for the first time.

https://doi.org/10.1590/S0044-59672012000300003 4626 downloads Cited 2 times in SciELO

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