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ABSTRACT Managing electrical conductivity levels is one of the fundamentals required to obtain greater production and better quality of vegetables. The aim of this study was to evaluate the effect of electrical conductivity of the nutrient solution on the kohlrabi crop cultivated in semi-hydroponic system. A randomized block design was used with five treatments associated with the electrical conductivity of the nutrient solution (1.31, 1.71, 2.37, 2.98, and 3.75 dS m-1) and four replications. The plants were harvested 78 days after transplanting and evaluated for growth, production, and postharvest quality. Nutrient solution with electrical conductivity (EC) of 1.31 dS m-1 promotes greater production of purple kohlrabi. The increase in EC reduced linearly most of the analyzed variables (leaf area, fresh mass of leaves, bulb and shoot, dry mass of leaves and total, bulb volume and firmness), with more significant losses for the bulb fresh mass (50.54%) and bulb volume (57.37%) variables. The use of nutrient solution with EC between 2.3 and 2.9 dS m-1 increased the vitamin C content and the titratable acidity.

RESUMO O manejo dos níveis de condutividade elétrica é um dos fundamentos necessários para se obter maior produção e melhor qualidade de hortaliças. O objetivo deste trabalho foi avaliar o efeito da condutividade elétrica da solução nutritiva na cultura da couve-rábano cultivada em sistema semi-hidropônico. O delineamento experimental foi em blocos casualizados com cinco tratamentos associados à condutividade elétrica da solução nutritiva (1,31; 1,71; 2,37; 2,98 e 3,75 dS m-1) e quatro repetições. As plantas foram colhidas 78 dias após o transplante e avaliadas quanto ao crescimento, produção e qualidade pós-colheita. Solução nutritiva com condutividade elétrica (CE) de 1,31 dS m-1 proporciona maior produção de couve-rábano roxa. O aumento da CE reduziu linearmente a maioria das variáveis analisadas (área foliar, massa fresca de folhas, bulbos e parte aérea, massa seca de folhas e totais, volume e firmeza de bulbos), com perdas mais expressivas para as variáveis massa fresca de bulbos (50,54%) e volume de bulbos (57,37%). A utilização de solução nutritiva com CE entre 2,3 e 2,9 dS m-1 aumentou o teor de vitamina C e a acidez titulável.

https://doi.org/10.1590/1807-1929/agriambi.v28n1e270704

The amygdala lesioning due to status epilepticus – Changes in mechanisms controlling chloride homeostasis
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Santos, Luiz E.C.

; Almeida, Antônio-Carlos G.

; Silva, Sílvia C.B.

; Rodrigues, Antônio M.

; Cecílio, Samyra G.

; Scorza, Carla A.

; Finsterer, Josef

; Moret, Marcelo

; Scorza, Fulvio A.

Clinics

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2023, Volume 78 elocation 100159

Resumo: En | Texto: En | PDF: En

Objective: Amygdala has been demonstrated as one of the brain sites involved in the control of cardiorespiratory functioning. The structural and physiological alterations induced by epileptic activity are also present in the amygdala and reflect functional changes that may be directly associated with a sudden unexpected death. Seizures are always associated with neuronal damage and changes in the expression of cation-chloride cotransporters and Na/K pumps. In this study, the authors aimed to investigate if these changes are present in the amygdala after induction of status epilepticus with pilocarpine, which may be directly correlated with Sudden Unexpected Death in Epilepsy (SUDEP). Methods: Pilocarpine-treated wistar rats 60 days after Status Epilepticus (SE) were compared with control rats. Amygdala nuclei of brain slices immunostained for NKCC1, KCC2 and α1-Na+/K+-ATPase, were quantified by optical densitometry. Results: The amygdaloid complex of the animals submitted to SE had no significant difference in the NKCC1 immunoreactivity, but KCC2 immunoreactivity reduced drastically in the peri-somatic sites and in the dendritic-like processes. The α1-Na+/K+-ATPase peri-somatic immunoreactivity was intense in the rats submitted to pilocarpine SE when compared with control rats. The pilocarpine SE also promoted intense GFAP staining, specifically in the basolateral and baso-medial nuclei with astrogliosis and cellular debris deposition. Interpretation: The findings revealed that SE induces lesion changes in the expression of KCC2 and α1-Na + /K + -ATPase meaning intense change in the chloride regulation in the amygdaloid complex. These changes may contribute to cardiorespiratory dysfunction leading to SUDEP.

https://doi.org/10.1016/j.clinsp.2022.100159

Antioxidants and cardioprotective effects of ethyl acetate fraction of Canavalia rosea leaves in myocardial ischemia-reperfusion injury
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FEITOSA, MARAÍSA B.J.

; ARAÚJO, SILVAN S.

; MESQUITA, THÁSSIO RICARDO R.

; GIODA, CAROLINA R.

; SÁ, LUCAS A. DE

; ALMEIDA, GRACE KELLY M.

; MIGUEL-DOS-SANTOS, RODRIGO

; BARBOSA, ANDRIELE M.

; VASCONCELOS, CARLA MARIA L. DE

; CAMARGO, ENILTON A.

; BARREIROS, ANDRÉ LUÍS B.S.

; ESTEVAM, CHARLES S.

; MORAES, ÉDER RICARDO DE

; AMARAL, RICARDO G.

; LAUTON-SANTOS, SANDRA

Anais da Academia Brasileira de Ciências

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2023, Volume 95 Supl. 1 elocation e20220514

Resumo: En | Texto: En | PDF: En

Abstract Different degrees in the biological activities of Canavalia rosea had been previously reported . In this study, our group assessed the cardioprotective effects of the ethyl acetate fraction (EAcF) of the Canavalia rosea leaves. Firstly, it was confirmed, by in vitro approach, that the EAcF has high antioxidant properties due to the presence of important secondary metabolites, as flavonoids. In order to explore their potential protector against cardiovascular disorders, hearts were previously perfused with EAcF (300 μg.mL-1) and submitted to the global ischemia followed by reperfusion in Langendorff system. The present findings have demonstrated that EAcF restored the left ventricular developed pressure and decreased the arrhythmias severity index. Furthermore, EAcF significantly increased the glutathiones peroxidase activity with decreased malondialdehyde and creatine kinase levels. EAcF was effective upon neither the superoxide dismutase, glutationes reductase nor the catalase activities. In addition, the Western blot analysis revealed that ischemia-reperfusion injury significantly upregulates caspase 3 protein expression, while EAcF abolishes this effect. These results provide evidence that the EAcF reestablishes the cardiac contractility and prevents arrhythmias; it is suggested that EAcF could be used to reduce injury caused by cardiac reperfusion. However more clinical studies should be performed, before applying it in the clinic.

https://doi.org/10.1590/0001-3765202320220514

The nonsynaptic plasticity in Parkinson's disease: Insights from an animal model
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Viegas, Mônica P.C.

; Santos, Luiz E.C.

; Aarão, Mayra C.

; Cecilio, Samyra G.

; Medrado, Joana M.

; Pires, Arthur C.

; Rodrigues, Antônio M.

; Scorza, Carla A.

; Moret, Marcelo A.

; Finsterer, Josef

; Scorza, Fulvio A.

; Almeida, Antônio-Carlos G.

Clinics

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2023, Volume 78 elocation 100242

Resumo: En | Texto: En | PDF: En

Abstract Background The 6-OHDA nigro-striatal lesion model has already been related to disorders in the excitability and synchronicity of neural networks and variation in the expression of transmembrane proteins that control intra and extracellular ionic concentrations, such as cation-chloride cotransporters (NKCC1 and KCC2) and Na+/K+-ATPase and, also, to the glial proliferation after injury. All these non-synaptic mechanisms have already been related to neuronal injury and hyper-synchronism processes. Objective The main objective of this study is to verify whether mechanisms not directly related to synaptic neurotransmission could be involved in the modulation of nigrostriatal pathways. Methods Male Wistar rats, 3 months old, were submitted to a unilateral injection of 24 µg of 6-OHDA, in the striatum (n= 8). The animals in the Control group (n= 8) were submitted to the same protocol, with the replacement of 6-OHDA by 0.9% saline. The analysis by optical densitometry was performed to quantify the immunoreactivity intensity of GFAP, NKCC1, KCC2, Na+/K+-ATPase, TH and Cx36. Results The 6-OHDA induced lesions in the striatum, were not followed by changes in the expression cation-chloride cotransporters and Na+/K+-ATPase, but with astrocytic reactivity in the lesioned and adjacent regions of the nigrostriatal. Moreover, the dopaminergic degeneration caused by 6-OHDA is followed by changes in the expression of connexin-36. Conclusions The use of the GJ blockers directly along the nigrostriatal pathways to control PD motor symptoms is conjectured. Electrophysiology of the striatum and the substantia nigra, to verify changes in neuronal synchronism, comparing brain slices of control animals and experimental models of PD, is needed.

https://doi.org/10.1016/j.clinsp.2023.100242

WSOC and Its Relationship with BC, Levoglucosan and Transition Metals in the PM2.5 of an Urban Area in the Amazon
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Fernandes, Karenn S.

; Santos, Erickson O. dos

; Batista, Carla E.

; Ribeiro, Igor O.

; Piracelli, Victor P.

; Solci, Maria Cristina

; Duvoisin Jr., Sergio

; Martin, Scot T.

; Souza, Rodrigo A. F.

; Machado, Cristine M. D.

Journal of the Brazilian Chemical Society

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Jun 2022, Volume 33 Nº 6 Páginas 570 - 581

Resumo: En | Texto: En | PDF: En

Water-soluble organic carbon (WSOC) makes up a large mass fraction of the organic carbon in the aerosol and can influence important cloud processes in the atmosphere. The capacity of WSOC to form metallic complexes with transition metals is well known; however, its influence on the aerosol of urban areas in the Amazon region is not very well known. In this study, we investigated the relationship between WSOC, black carbon (BC), levoglucosan (LEV) and transition metals (Fe, Cu and Mn) present in the PM2.5 (particles with a diameter smaller than 2.5 µm) of an urban environment during the dry season in the central Amazon. Oxalic acid (C2) was used to identify the influence of transition metals on WSOC. The mean mass concentration value of the PM2.5 was 14.72 μg m-3 (2.11-31.68 μg m-3). The WSOC made up 58.34% of the PM2.5 mass, followed by BC (20.28%), and LEV (2.62%). The WSOC showed significant correlation with the transition metals analyzed (> 0.56), especially Mn with C2 (linear coefficient (R2) = 0.74). A multiple linear regression with WSOC, BC and LEV showed a strong linear correlation between them (R2 = 0.86), indicating the influence of biomass burning and vehicle traffic on the organic aerosol.

https://doi.org/10.21577/0103-5053.20220011

Art and science: impact of semioccluded vocal tract exercises and choral singing on quality of life in subjects with congenital GH deficiency
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Andrade, Bruna M. R. de

; Valença, Eugenia H. O.

; Salvatori, Roberto

; Oliveira Neto, Luiz A.

; Souza, Anita H. O.

; Oliveira, Alaíde H. A.

; Oliveira, Mario C.P.

; Melo, Enaldo V.

; Carvalho, Susana de

; Sales, Neuza J

; Monteiro, Gisane C.

; Lima, José Marcel de

; Annunziato, Marcos Felipe Harder

; Mannis, Guilherme Daniel Breternitz

; Souza, Lucas E. de A.

; Goes, Yasmin D.

; Carvalho, Thayza S.

; Farias, Celiane de

; Santos, Michela P. dos

; Cardoso, Gabriela P. F.

; Sousa, Carla S. Pereira

; Santana, Julia Rodrigues

; Sales, Ester Almeida

; d’Avila, Jeferson Sampaio

; Aguiar-Oliveira, Manuel H.

Archives of Endocrinology and Metabolism

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Abr 2022, Volume 66 Nº 2 Páginas 198 - 205

Resumo: En | Texto: En | PDF: En

ABSTRACT Objectives: Currently, not much is known about the interactions between voice and growth hormone (GH). We have described large kindred with isolated GH deficiency (IGHD) due to a GHRH receptor mutation, resulting in severe short stature and high-pitched voice. These IGHD individuals have little interest in GH treatment, as they consider themselves “short long-lived people”, rather than patients. Interestingly, they report normal general quality of life, but they rate their Voice-Related Quality of Life (V-RQOL) as low. Here, we assessed the social and auditory-perceptual impacts of artistic-intervention voice therapy with semioccluded vocal tract exercises (SOVTE) and choral singing, on their voices. Material and methods: Seventeen GH-naïve adult IGHD individuals were enrolled in a single-arm interventional pre-post study with 13 weekly sessions of choir singing over 90 days. Outcome measures were V-RQOL scores, self-assessment of voice, and auditory-perceptual analysis (GRBAS scale, G: grade of the severity of dysphonia; R: roughness; B: breathiness; A: asthenia; and S: strain). Results: Marked improvements in total (p = 0.0001), physical (p = 0.0002), and socioemotional (p = 0.0001) V-RQOL scores and in self-assessment of voice (p = 0.004) were found. The general grades of vocal deviation (p = 0.0001), roughness (p = 0.0001), breathiness (p = 0.0001) and strain (p = 0.0001) exhibited accentuated reductions. Conclusions: Voice therapy with semioccluded vocal tract exercises and choral training improved social impact and perceptual voice assessments in IGHD subjects and markedly improved their voice-related quality of life. This is particularly important in a setting where GH replacement therapy is not widely accepted.

https://doi.org/10.20945/2359-3997000000449

Effect of thyme, lemongrass and rosemary essential oils on Aspergillus flavus in cauliflower seeds
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Nakada-Freitas, Pâmela G

; Santos, César Augusto

; Magalhães, Thalita Helena

; Bustamonte, Stefani S

; Santos, Danielle Carla dos

; Cardoso, Antonio Ismael Inácio

; Amador, Talita S

; Lanna, Natália de BL

; Bardiviesso, Estefânia M

; Catão, Hugo Cesar RM

Horticultura Brasileira

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Jan 2022, Volume 40 Nº 1 Páginas 71 - 75

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Devido à ação dos óleos essenciais de tomilho, capim-limão e alecrim contra microrganismos e poucos estudos dos mesmos no tratamento de sementes, propõe-se este estudo com semente de hortaliça. Portanto, o objetivo deste trabalho foi avaliar o efeito do tratamento com óleos essenciais de tomilho, capim-limão e alecrim em sementes de couve-flor inoculadas com Aspergillus flavus. Foram utilizados os três óleos essenciais, nas concentrações 0,0; 0,4; 0,8; 1,6 e 2,0%, arranjados em esquema fatorial 3x5, no delineamento inteiramente casualizado, com quatro repetições. Os óleos essenciais de tomilho (1,8%) e capim-limão (1,9%) tiveram efeito fungistático contra A. flavus em sementes de couve-flor. Os óleos essenciais de tomilho a 2,0% e o de capim-limão a 1,6% não afetaram a qualidade fisiológica das sementes, sendo promissores no tratamento de sementes orgânicas. Por outro lado, o óleo essencial de alecrim, apesar de não afetar a germinação e afetar pouco o vigor das sementes, não foi eficiente no controle do patógeno.

ABSTRACT Due to the action of essential oils of thyme, lemongrass and rosemary against microorganisms and few studies on them in seed treatment, this study is proposed with vegetable seed. Therefore, the aim was to evaluate the effect of treatments with essential oils of thyme, lemongrass and rosemary on cauliflower seeds, inoculated with Aspergillus flavus. Three essential oils were used, at concentrations 0.0; 0.4; 0.8; 1.6 and 2.0%, arranged in a 3x5 factorial scheme, in a completely randomized design, with four replications. The essential oils of thyme (1.8%) and lemongrass (1.9%) had a fungistatic effect against A. flavus in cauliflower seeds. Thyme essential oil at 2.0% and lemongrass at 1.6% didn’t affect the physiological quality of seeds, being promising in the treatment of organic seeds. On the other hand, rosemary essential oil, despite not affecting germination and little affecting seed vigor, wasn’t efficient in controlling the pathogen.

https://doi.org/10.1590/s0102-0536-20220109

TiO2 Nanocrystals and Annona crassiflora Polyphenols Used Alone or Mixed Impact Differently on Wound Repair
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MOURA, FRANCYELLE B.R. DE

; FERREIRA, BRUNO ANTONIO

; MUNIZ, ELUSCA HELENA

; SANTOS, RINARA A.

; GOMIDE, JOSÉ AUGUSTO L.

; JUSTINO, ALLISSON B.

; SILVA, ANIELLE CHRISTINE A.

; DANTAS, NOELIO O.

; RIBEIRO, DANIELE L.

; ARAÚJO, FERNANDA A.

; ESPINDOLA, FOUED S.

; TOMIOSSO, TATIANA CARLA

Anais da Academia Brasileira de Ciências

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2022, Volume 94 Nº 2 elocation e20210230

Resumo: En | Texto: En | PDF: En

Abstract Wounds treated with TiO2 nanoparticles (TiO2-NPs) show an improvement in healing time. However, little is known about the parameters that can contribute to this result. On the other hand, the treatment of wounds with polyphenols is widely known. These compounds are found in the peel of Annona crassiflora fruit and have antioxidant, analgesic and anti-inflammatory properties. In this study, we evaluated the healing effect of TiO2 nanocrystals (TiO2-NCs), polyphenolic fractions obtained from ethanolic extract of A. crassiflora fruit peel (PFAC) and mix (PFAC + TiO2-NCs) on the parameters of wound closure, inflammation, collagen deposition, metalloproteinase activity (MMPs) and angiogenesis. TiO2-NCs and PFAC have activity for wound healing, showed anti-inflammatory action and a shorter wound closure time. These treatments also contributed to increased collagen deposition, while only treatment with TiO2-NCs increased MMP-2 activity, parameters essential for the migration of keratinocytes and for complete restoration of the injured tissue. The combination of PFAC + TiO2-NCs reduced the effectiveness of individual treatments by intensifying the inflammatory process, in addition to delaying wound closure. We conclude that the interaction between the hydroxyl groups of PFAC polyphenols with TiO2-NCs may have contributed to difference in the healing activity of skin wounds.

https://doi.org/10.1590/0001-3765202220210230

Saúde Cardiovascular e Fibrilação ou Flutter Atrial: Um Estudo Transversal do ELSA-Brasil
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Santos, Itamar S.

; Lotufo, Paulo A.

; Goulart, Alessandra C.

; Brant, Luisa C. C.

; Pinto Filho, Marcelo M

; Pereira, Alexandre C.

; Barreto, Sandhi M.

; Ribeiro, Antonio L. P.

; Thomas, G Neil

; Lip, Gregory Y. H.

; Bensenor, Isabela M.

; Arasalingam, Ajini

; Beane, Abi

; Bensenor, Isabela M

; Brocklehurst, Peter

; Cheng, Kar Keung

; El-Bouri, Wahbi

; Feng, Mei

; Goulart, Alessandra C

; Greenfield, Sheila

; Guo, Yutao

; Guruparan, Mahesan

; Gusso, Gustavo

; Gooden, Tiffany E

; Haniffa, Rashan

; Humphreys, Lindsey

; Jolly, Kate

; Jowett, Sue

; Kumarendran, Balachandran

; Lancashire, Emma

; Lane, Deirdre A

; Li, Xuewen

; Lip (Co-PI), Gregory Y.H.

; Li, Yan-guang

; Lobban, Trudie

; Lotufo, Paulo A

; Manseki-Holland, Semira

; Moore, David J

; Nirantharakumar, Krishnarajah

; Olmos, Rodrigo D

; Paschoal, Elisabete

; Pirasanth, Paskaran

; Powsiga, Uruthirakumar

; Romagnolli, Carla

; Santos, Itamar S

; Shantsila, Alena

; Sheron, Vethanayagam Antony

; Shribavan, Kanesamoorthy

; Szmigin, Isabelle

; Subaschandren, Kumaran

; Surenthirakumaran, Rajendra

; Tai, Meihui

; Neil Thomas (Co-PI), G

; Varella, Ana C

; Wang, Hao

; Wang, Jingya

; Zhang, Hui

; Zhong, Jiaoyue

Arquivos Brasileiros de Cardiologia

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2022, Nº ahead

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Fundamento A associação entre o status de saúde cardiovascular ideal ( ideal cardiovascular health ( ICVH) e diagnóstico de fibrilação ou flutter atrial (FFA) foi menos estudado em comparação a outras doenças cardiovasculares. Objetivos Analisar a associação entre o diagnóstico de FFA e métricas e escores de ICVH no Estudo Longitudinal de Saúde do Adulto (ELSA-Brasil). Métodos Este estudo analisou dados de 13141 participantes com dados completos. Os traçados eletrocardiográficos foram codificados de acordo com o Sistema de Minnesota, em um centro de leitura centralizado. As métricas do ICVH (dieta, atividade física, índice de massa corporal, tabagismo, glicemia de jeju, e colesterol total) e escores do ICVH foram calculados conforme proposto pela American Heart Association . Modelos de regressão logística bruta e ajustada foram construídos para analisar associações de métricas e escores do ICVH com diagnóstico de FFA. O nível de significância foi estabelecido em 0,05. Resultados A idade mediana da amostra foi de 55 anos, e 54,4% eram mulheres. Nos modelos ajustados, os escores de ICVH não apresentaram associação significativa com diagnóstico de FFA prevalente [odds ratio (OR):0,96; intervalo de confiança de 95% (IC95%):0,80-1,16; p=0,70). Perfis de pressão arterial ideal (OR:0,33; IC95%:0,1-0,74; p=0,007) e colesterol total ideal (OR:1,88; IC95%:1,19-2,98; p=0,007) foram significativamente associados com o diagnóstico de FFA. Conclusões Não foram identificadas associações significativas entre escores de ICVH global e diagnóstico de FFA após ajuste multivariado em nossas análises, devido, ao menos em parte, às associações antagônicas da FFA com métricas de pressão arterial e de colesterol total do ICVH. Nossos resultados sugerem que estimar a prevenção da FFA por meio de escore de ICVH global pode não ser adequado, e as métricas do ICVH devem ser consideradas separadamente.

Abstract Background The association between ideal cardiovascular health (ICVH) status and atrial fibrillation or flutter (AFF) diagnosis has been less studied compared to other cardiovascular diseases. Objective To analyze the association between AFF diagnosis and ICVH metrics and scores in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Methods This study analyzed data from 13,141 participants with complete data. Electrocardiographic tracings were coded according to the Minnesota Coding System, in a centralized reading center. ICVH metrics (diet, physical activity, body mass index, smoking, blood pressure, fasting plasma glucose, and total cholesterol) and scores were calculated as proposed by the American Heart Association. Crude and adjusted binary logistic regression models were built to analyze the association of ICVH metrics and scores with AFF diagnosis. Significance level was set at 0.05. Results The sample had a median age of 55 years and 54.4% were women. In adjusted models, ICVH scores were not significantly associated with prevalent AFF diagnosis (odds ratio [OR]:0.96; 95% confidence interval [95% CI]:0.80-1.16; p=0.70). Ideal blood pressure (OR:0.33; 95% CI:0.15–0.74; p=0.007) and total cholesterol (OR:1.88; 95% CI:1.19–2.98; p=0.007) profiles were significantly associated with AFF diagnosis. Conclusions No significant associations were identified between global ICVH scores and AFF diagnosis after multivariable adjustment in our analyses, at least partially due to the antagonistic associations of AFF with blood pressure and total cholesterol ICVH metrics. Our results suggest that estimating the prevention of AFF burden using global ICVH scores may not be adequate, and ICVH metrics should be considered in separate.

https://doi.org/10.36660/abc.20210970

10.

Anacardium occidentale L. (cajueiro) in the healing of skin wounds: an experimental study in rats
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Silva, Dafni Cleia Gaia da

; Silva, Hanna Machado da

; Franco, Pedro Pastorini

; Carmo, Tomaz José Aquino Vasconcelos do

; Santos, Deivid Ramos dos

; Silveira, Edvaldo Lima

; Pinto, Ana Carla Godinho

; Andrade, Marcieni Ataíde de

; Chaves, Rosa Helena de Figueiredo

Acta Cirúrgica Brasileira

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2022, Volume 37 Nº 10 elocation e371006

Resumo: En | Texto: En | PDF: En

ABSTRACT Purpose: To analyze the effects of Anacardium occidentale Linn on the healing of skin wounds. Methods: Twenty Wistar male rats were distributed into four groups (with five animals each one): negative control group (NCG), treated with saline solution; cashew tree group (CG), treated with hydroalcoholic extract of the bark of A. occidentale Linn; manipulated cashew tree group (MCG), with the ointment of extract of the bark of A. occidentale Linn; positive control group (PCG), treated with sunflower oil. All animals were examined daily, observing the macroscopic aspects of the surgical wound. Hematoxylin-eosin staining was used for tissue morphology analysis and Masson’s trichrome for better collagen fiber characterization. Results: On day 7, the MCG group had the expansion of the surgical wound covered by crust, exceeding the initial limits. On day 21, the wounds were observed to be completely closed and epithelialized in the NCG and CG groups. PCG and MCG still had remnants of crusts on the wound. The NCG was the only one not to present an abscess in histopathological analysis. Conclusions: There was a prolongation of the healing phase of the animals treated with the extract, and the animals in the NCG showed a better outcome by histological analysis.

https://doi.org/10.1590/acb371006

11.

Exposición crónica a la altura. Características clínicas y diagnóstico
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Santos-Martínez, Luis E.

; Gómez-Tejada, Ricardo A.

; Murillo-Jauregui, Carla X.

; Hoyos-Paladines, Rodrigo A.

; Poyares-Jardim, Carlos V.

; Orozco-Levi, Mauricio

Archivos de cardiología de México

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Dez 2021, Volume 91 Nº 4 Páginas 500 - 507

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract Chronic exposure to altitude has been associated with hypobaric hypoxia in its inhabitants. Two entities have been associated with it, high altitude pulmonary hypertension and chronic mountain sickness. Its physiological and pulmonary circulation characteristics are described, as well as its clinical profile and diagnosis.

Resumen La exposición crónica a la altitud se ha asociado a hipoxia hipobárica en quienes la experimentan. Dos entidades se han asociado a la hipoxia hipobárica: la hipertensión pulmonar de la alta altitud y el mal de montaña crónico. Se describen sus características fisiológicas y de la circulación pulmonar, así como su perfil clínico y el diagnóstico.

https://doi.org/10.24875/acm.20000447 90 downloads

12.

Octadecanal as the Male-Produced Aggregation Pheromone of the Coconut Weevil, Amerrhinus ynca (Coleoptera: Curculionidae)
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Santos Neta, Palmira L. dos

; Fávaro, Carla F.

; Macedo, Sarah O.

; Moura, José Inácio L.

; Bello, Jan E.

; Santos, Rândilla R. C.

; Zarbin, Paulo H. G.

Journal of the Brazilian Chemical Society

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Out 2021, Volume 32 Nº 10 Páginas 2017 - 2021

Resumo: En | Texto: En | PDF: En

The beetle Amerrhinus ynca Sahlberg, 1823 (Coleoptera: Curculionidae) causes damage to several species of the Arecaceae family. The larvae of this palm weevil damage palm trees by causing perforations in the leaf rachis, obstructing the flow of nutrients to the plant. To date, are no registered insecticides for the control of A. ynca. An efficient control strategy would be the use of synthetic pheromones of this beetle for integrated pest management tactics. In this work, the aggregation pheromone of A. ynca was identified from adults collected as larvae and pupae from the rachis of coconut palm. The volatile compounds produced by A. ynca were collected via headspace aeration of adult beetles, and the identification of the pheromone was performed with gas chromatography coupled to mass spectrometry (GC-MS), GC-Fourier transform infrared spectroscopy (GC-FTIR) and GC-electroantenographic detector (GC-EAD). Dual-choice olfactometry experiments were performed to evaluate the bioactivity of the synthetic pheromone. GC analyses showed the presence of a male-specific compound that was identified as octadecanal. In GC-EAD analyses, synthetic octadecanal elicited responses of A. ynca female antennae. Behavioral bioassays showed attractiveness of synthetic compound for males and females, indicating octadecanal as the aggregation pheromone of A. ynca.

https://doi.org/10.21577/0103-5053.20210087 52 downloads

13.

Multi-criteria analysis for selection of priority management programs for the Japaratuba River Basin, SE, Brazil
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Santos, Carla Z. A. dos

; Bezerra, Talitha S. C.

; Pedrotti, Alceu

; Méllo Júnior, Arisvaldo V.

; Gomes, Laura J.

Revista Brasileira de Engenharia Agrícola e Ambiental

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Ago 2021, Volume 25 Nº 10 Páginas 717 - 724

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO A Bacia Hidrográfica do Rio Japaratuba (BHJ), localizada no Estado de Sergipe, apresenta um acelerado desenvolvimento econômico em decorrência da exploração do petróleo e aumento da monocultura da cana de açúcar e do milho; em consequência observa-se o aumento da degradação ambiental na bacia. Dada a importância para o abastecimento hídrico que a bacia hidrográfica possui para o Estado de Sergipe, e a necessidade de equilibrar o crescimento econômico com a conservação ambiental, este estudo teve o objetivo de analisar o Plano da Bacia Hidrográfica do Rio Japaratuba (PBHJ), publicado em 2015, e propor a escala de prioridade para execução dos programas dispostos sob o escopo de uma Avaliação Ambiental Estratégica (AAE). Para isso utilizou-se a análise multicritério de decisão aplicando-se o método Processo Hierárquico Analítico, com coleta de dados (abastecimento e distribuição de água, saneamento e cobertura florestal) dos anos de 2018, 2019 e 2020, associando também, técnicas de geoprocessamento. Constatou-se que, dos seis critérios analisados para a definição da escala de prioridade, aqueles associados à restauração dos ecossistemas, saneamento e higiene e a qualidade da água foram os que apresentaram a mais alta prioridade para execução, conforme os níveis de criticidade observados. A análise multicritério adotada sob uma abordagem de variáveis do desenvolvimento sustentável amplia o contexto de critérios ambientais a serem observados em futuras revisões do PBHJ; e expande a visão ambiental estratégica nos processos de gestão integrada da bacia.

ABSTRACT The Japaratuba River Basin (JRB), located in Sergipe, Brazil, has accelerated economic development due to oil exploration and an increase in the sugarcane and corn monocultures. Thus, environmental degradation has increased in the basin. Given the importance of the water supply that the hydrographic basin has for the state of Sergipe, and the need to balance its economic growth with environmental conservation, this study had the objective to analyze the Japaratuba River Basin Plan (JRBP), published in 2015, and propose the priority scale for the execution of programs arranged under the scope of a Strategic Environmental Assessment (SEA). Thus, the multi-criteria decision analysis (MCDA) applying the Analytic Hierarchy Process method (AHP) was used with data collection (water supply and distribution, sanitation, and forest cover) for the years 2018, 2019, and 2020, associating Geoprocessing techniques. It was verified that among the criteria analyzed for the definition of the priority scale, those associated with the restoration of ecosystems, sanitation, and hygiene, and water quality were the ones with the highest priority for execution according to the levels of criticality observed. The multi-criteria analysis expands the context of environmental criteria to be observed in further reviews of the JRBP; and expands the strategic environmental vision in the integrated management processes of the basin.

https://doi.org/10.1590/1807-1929/agriambi.v25n10p717-724 4 downloads

14.

TITULADOR AUTOMÁTICO EM FLUXO-BATELADA UTILIZANDO UM HARDWARE DE CÓDIGO FONTE ABERTO ARDUINO
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Soares, Fernanda S. C.

; Rodrigues, Rúbia E. C. R.

; Bossu, Carla M.

; Soares, Márcio S.

; Santos, Sidney X. dos

; Uebe, Gabriel O.

; Silva, Alex A.

Química Nova

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Mar 2021, Volume 44 Nº 3 Páginas 341 - 347

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

This work describes the development of an automatic titrometric method in flow-batch with potentiometric detection using alternative and easily accessible materials. Arduino board and its modules, solenoid valves to control the flow rate, peristaltic pump to propel and suction fluids and tubes of inert material to connect the different parts of the Flow-Batch Analyser (FBA) were used. The use of solenoid valves controlled by microcontrollers proved to be efficient for controlling the flow in FBA systems, the correlations of their flow rates as a function of time showed good linearity with correlation coefficients (r) 0.9994 and 0.9997 for the valve 1 and valve 2, respectively, allowing correct addition of pre-established volumes. Accuracy was verified by comparing the results of the proposed method with the classic potentiometric titration with statistically evaluated by Student’s t-test in NaOH with HCl and vinegar with NaOH titrations. Results confirmed the efficiency to use Arduino board and its modules and automatic titrometric method in flow-batch developed in this work allow the implementation of practical disciplines, such as potentiometric titration and flow analysis system in undergraduate courses, making these instruments more accessible, especially for the chemistry students.

https://doi.org/10.21577/0100-4042.20170671 154 downloads

15.

SUGARCANE BASE CUTTING QUALITY USING RECTANGULAR AND CIRCULAR BLADES
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Paixão, Carla S. S.

; Voltarelli, Murilo A.

; Santos, Adão F. dos

; Silva, Rouverson P. da

Engenharia Agrícola

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Fev 2021, Volume 41 Nº 1 Páginas 56 - 61

Resumo: En | Texto: En | PDF: En

ABSTRACT Sugarcane mechanized harvesting can lead to serious risks to the longevity of plantations when improperly operated, and may cause damages and disturbances in the remaining ratoons in the field. In this sense, this study aimed to evaluate the damage and disturbance to the sugarcane ratoons by the base cutting quality of two-blade models through statistical process control. The experiment was carried out during the 2015/16 growing season in an agricultural area of the Moreno Mill, located in Cravinhos, São Paulo, Brazil. The sugarcane harvester models A8800 (Machine 1) and BE1035 (Machine 2). The sugarcane variety cultivated in both treatments was SP80-1816. Thirty points were sampled per harvester, with 10-minute intervals between them. Equations were used to calculate the indices, which were then evaluated through descriptive analysis and statistical process control. Machine 2 presented process instability for the index of damages, with lower data variability. On the other hand, Machine 1 presented instability during the process due to the quality indicator and index of disturbance, but with a lower operation variability.

https://doi.org/10.1590/1809-4430-eng.agric.v41n1p56-61/2021 315 downloads

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