Results: 20
#1
au:SANTOS, FLAVIA A. G.
Filters
Order by
Page
of 2
Next
1.
N-Methyl-(2S,4R)-trans-4-hydroxy-L-proline isolated Sideroxylon obtusifolium attenuates TPA-induced irritant contact dermatitis in mice
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
NUNES, PAULO IURY G.
; VIANA, ANA FLÁVIA S.C.
; SASAHARA, GREYCE L.
; SANTOS, SABRINA M. DOS
; ALVES, ANA PAULA N.N.
; SILVEIRA, EDILBERTO R.
; SANTOS, FLÁVIA A.
.
Abstract Dermatitis is defined as a set of inflammatory diseases that affect the skin, with varied causes. Among the different types of dermatitis, contact dermatitis is the most prevalent. Although the current therapy is often effective, it is associated with adverse effects and the possibility of drug tolerance. N-Methyl-(2S, 4R)-trans-4-hydroxy-L-proline is a L-proline amino acid derivative found in the leaves of Sideroxylon obtusifolium, a species traditionally used to treat inflammatory diseases. The aim of this study was to investigate the topical anti-inflammatory effect of N-methyl-(2S, 4R)-trans-4-hydroxy-L-proline (NMP) in 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced irritant contact dermatitis in mice. Topically administered NMP, at doses of 0.03 − 0.50 mg/ear, reduced TPA-induced ear edema and neutrophil migration, as evidenced by low tissue myeloperoxidase activity and verified by histological examination. In addition, NMP (0.06 mg/ear) reduced tissue levels of pro-inflammatory cytokines (TNF-α, IL-6, IL-1β, INF-γ and MCP-1) and of the anti-inflammatory cytokine IL-10, and reduced gene expression of TNF-α, IL-6 and IL-1β increased by TPA. The data suggest that N-methyl-(2S, 4R)-trans-4-hydroxy-L-proline acts as a topical anti-inflammatory agent that decreases the expression of inflammatory cytokines, making it useful for the treatment of skin inflammation. Further investigations are necessary for its development as a therapeutic agent.
2.
Effect of Paralympic powerlifting training on sleep and its relationship with training load
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Stieler, Eduardo
; Silva, Flávia R.
; Grade, Isadora
; Andrade, Henrique A.
; Guerreiro, Renato C.
; Resende, Renan
; Andrade, André G.
; Gonçalves, Dawit A.
; Santos, Marcelo D.M.
; Silva, Andressa
; Mello, Marco T.
.
Abstract Aim: This study aims to compare the sleep parameters in Paralympic powerlifting athletes during days with and without training, and to analyze the relationship between the training load and sleep on the same day and the relationship between the previous night's sleep and the training load of the following day. Methods: Actigraphy was used to analyze the sleep parameters of 11 Paralympic powerlifting athletes for 14 days (7 days without and with training), whereas Ratings of Perceived Exertion (RPE) analysis was used to assess training load. In addition, the Horne and östberg chronotype questionnaire and the Epworth Sleepiness Scale were applied. Results: Athletes show morning and indifferent chronotype and low daytime sleepiness. We found that on training days, sleep onset latency (SOL) was lower (average 5.3 min faster), whereas total sleep time (TST) and sleep efficiency (SE) were higher (TST averaged 169 min and SE 7% higher) compared to non-training days. In addition, the TST of the night before the training days correlated positively with the RPE of the following day, and the training volume correlated negatively with the SE of the same day. Conclusion: Our findings show that Paralympic powerlifting training had positive effects in increasing TST and SE and decreasing SOL on training days. These results show the positive effects of this type of training in improving sleep in athletes with physical disabilities. In addition, a good night's sleep the day before training can make it possible to put more effort into the next day's training. Therefore, guiding athletes to sleep more before training with more intense loads is recommended.
3.
Práticas de ressuscitação volêmica em unidades de terapia intensiva brasileiras: uma análise secundária do estudo Fluid-TRIPS
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Freitas, Flavio Geraldo Rezende de
; Hammond, Naomi
; Li, Yang
; Azevedo, Luciano Cesar Pontes de
; Cavalcanti, Alexandre Biasi
; Taniguchi, Leandro
; Gobatto, André
; Japiassú, André Miguel
; Bafi, Antonio Tonete
; Mazza, Bruno Franco
; Noritomi, Danilo Teixeira
; Dal-Pizzol, Felipe
; Bozza, Fernando
; Salluh, Jorge Ibrahin Figueira
; Westphal, Glauco Adrieno
; Soares, Márcio
; Assunção, Murillo Santucci César de
; Lisboa, Thiago
; Lobo, Suzana Margarete Ajeje
; Barbosa, Achilles Rohlfs
; Ventura, Adriana Fonseca
; Souza, Ailson Faria de
; Silva, Alexandre Francisco
; Toledo, Alexandre
; Reis, Aline
; Cembranel, Allan
; Rea Neto, Alvaro
; Gut, Ana Lúcia
; Justo, Ana Patricia Pierre
; Santos, Ana Paula
; Albuquerque, André Campos D. de
; Scazufka, André
; Rodrigues, Antonio Babo
; Fernandino, Bruno Bonaccorsi
; Silva, Bruno Goncalves
; Vidal, Bruno Sarno
; Pinheiro, Bruno Valle
; Pinto, Bruno Vilela Costa
; Feijo, Carlos Augusto Ramos
; Abreu Filho, Carlos de
; Bosso, Carlos Eduardo da Costa Nunes
; Moreira, Carlos Eduardo Nassif
; Ramos, Carlos Henrique Ferreira
; Tavares, Carmen
; Arantes, Cidamaiá
; Grion, Cintia
; Mendes, Ciro Leite
; Kmohan, Claudio
; Piras, Claudio
; Castro, Cristine Pilati Pileggi
; Lins, Cyntia
; Beraldo, Daniel
; Fontes, Daniel
; Boni, Daniela
; Castiglioni, Débora
; Paisani, Denise de Moraes
; Pedroso, Durval Ferreira Fonseca
; Mattos, Ederson Roberto
; Brito Sobrinho, Edgar de
; Troncoso, Edgar M. V.
; Rodrigues Filho, Edison Moraes
; Nogueira, Eduardo Enrico Ferrari
; Ferreira, Eduardo Leme
; Pacheco, Eduardo Souza
; Jodar, Euzebio
; Ferreira, Evandro L. A.
; Araujo, Fabiana Fernandes de
; Trevisol, Fabiana Schuelter
; Amorim, Fábio Ferreira
; Giannini, Fabio Poianas
; Santos, Fabrício Primitivo Matos
; Buarque, Fátima
; Lima, Felipe Gallego
; Costa, Fernando Antonio Alvares da
; Sad, Fernando Cesar dos Anjos
; Aranha, Fernando G.
; Ganem, Fernando
; Callil, Flavio
; Costa Filho, Francisco Flávio
; Dall´Arto, Frederico Toledo Campo
; Moreno, Geovani
; Friedman, Gilberto
; Moralez, Giulliana Martines
; Silva, Guilherme Abdalla da
; Costa, Guilherme
; Cavalcanti, Guilherme Silva
; Cavalcanti, Guilherme Silva
; Betônico, Gustavo Navarro
; Betônico, Gustavo Navarro
; Reis, Hélder
; Araujo, Helia Beatriz N.
; Hortiz Júnior, Helio Anjos
; Guimaraes, Helio Penna
; Urbano, Hugo
; Maia, Israel
; Santiago Filho, Ivan Lopes
; Farhat Júnior, Jamil
; Alvarez, Janu Rangel
; Passos, Joel Tavares
; Paranhos, Jorge Eduardo da Rocha
; Marques, José Aurelio
; Moreira Filho, José Gonçalves
; Andrade, Jose Neto
; Sobrinho, José Onofre de C
; Bezerra, Jose Terceiro de Paiva
; Alves, Juliana Apolônio
; Ferreira, Juliana
; Gomes, Jussara
; Sato, Karina Midori
; Gerent, Karine
; Teixeira, Kathia Margarida Costa
; Conde, Katia Aparecida Pessoa
; Martins, Laércia Ferreira
; Figueirêdo, Lanese
; Rezegue, Leila
; Tcherniacovsk, Leonardo
; Ferraz, Leone Oliveira
; Cavalcante, Liane
; Rabelo, Ligia
; Miilher, Lilian
; Garcia, Lisiane
; Tannous, Luana
; Hajjar, Ludhmila Abrahão
; Paciência, Luís Eduardo Miranda
; Cruz Neto, Luiz Monteiro da
; Bley, Macia Valeria
; Sousa, Marcelo Ferreira
; Puga, Marcelo Lourencini
; Romano, Marcelo Luz Pereira
; Nobrega, Marciano
; Arbex, Marcio
; Rodrigues, Márcio Leite
; Guerreiro, Márcio Osório
; Rocha, Marcone
; Alves, Maria Angela Pangoni
; Alves, Maria Angela Pangoni
; Rosa, Maria Doroti
; Dias, Mariza D’Agostino
; Martins, Miquéias
; Oliveira, Mirella de
; Moretti, Miriane Melo Silveira
; Matsui, Mirna
; Messender, Octavio
; Santarém, Orlando Luís de Andrade
; Silveira, Patricio Júnior Henrique da
; Vassallo, Paula Frizera
; Antoniazzi, Paulo
; Gottardo, Paulo César
; Correia, Paulo
; Ferreira, Paulo
; Torres, Paulo
; Silva, Pedro Gabrile M. de Barros e
; Foernges, Rafael
; Gomes, Rafael
; Moraes, Rafael
; Nonato filho, Raimundo
; Borba, Renato Luis
; Gomes, Renato V
; Cordioli, Ricardo
; Lima, Ricardo
; López, Ricardo Pérez
; Gargioni, Ricardo Rath de Oliveira
; Rosenblat, Richard
; Souza, Roberta Machado de
; Almeida, Roberto
; Narciso, Roberto Camargo
; Marco, Roberto
; waltrick, Roberto
; Biondi, Rodrigo
; Figueiredo, Rodrigo
; Dutra, Rodrigo Santana
; Batista, Roseane
; Felipe, Rouge
; Franco, Rubens Sergio da Silva
; Houly, Sandra
; Faria, Sara Socorro
; Pinto, Sergio Felix
; Luzzi, Sergio
; Sant’ana, Sergio
; Fernandes, Sergio Sonego
; Yamada, Sérgio
; Zajac, Sérgio
; Vaz, Sidiner Mesquita
; Bezerra, Silvia Aparecida Bezerra
; Farhat, Tatiana Bueno Tardivo
; Santos, Thiago Martins
; Smith, Tiago
; Silva, Ulysses V. A.
; Damasceno, Valnei Bento
; Nobre, Vandack
; Dantas, Vicente Cés de Souza
; Irineu, Vivian Menezes
; Bogado, Viviane
; Nedel, Wagner
; Campos Filho, Walther
; Dantas, Weidson
; Viana, William
; Oliveira Filho, Wilson de
; Delgadinho, Wilson Martins
; Finfer, Simon
; Machado, Flavia Ribeiro
.
RESUMO Objetivo: Descrever as práticas de ressuscitação volêmica em unidades de terapia intensiva brasileiras e compará-las com as de outros países participantes do estudo Fluid-TRIPS. Métodos: Este foi um estudo observacional transversal, prospectivo e internacional, de uma amostra de conveniência de unidades de terapia intensiva de 27 países (inclusive o Brasil), com utilização da base de dados Fluid-TRIPS compilada em 2014. Descrevemos os padrões de ressuscitação volêmica utilizados no Brasil em comparação com os de outros países e identificamos os fatores associados com a escolha dos fluidos. Resultados: No dia do estudo, foram incluídos 3.214 pacientes do Brasil e 3.493 pacientes de outros países, dos quais, respectivamente, 16,1% e 26,8% (p < 0,001) receberam fluidos. A principal indicação para ressuscitação volêmica foi comprometimento da perfusão e/ou baixo débito cardíaco (Brasil 71,7% versus outros países 56,4%; p < 0,001). No Brasil, a percentagem de pacientes que receberam soluções cristaloides foi mais elevada (97,7% versus 76,8%; p < 0,001), e solução de cloreto de sódio a 0,9% foi o cristaloide mais comumente utilizado (62,5% versus 27,1%; p < 0,001). A análise multivariada sugeriu que os níveis de albumina se associaram com o uso tanto de cristaloides quanto de coloides, enquanto o tipo de prescritor dos fluidos se associou apenas com o uso de cristaloides. Conclusão: Nossos resultados sugerem que cristaloides são usados mais frequentemente do que coloides para ressuscitação no Brasil, e essa discrepância, em termos de frequências, é mais elevada do que em outros países. A solução de cloreto de sódio 0,9% foi o cristaloide mais frequentemente prescrito. Os níveis de albumina sérica e o tipo de prescritor de fluidos foram os fatores associados com a escolha de cristaloides ou coloides para a prescrição de fluidos.
Abstract Objective: To describe fluid resuscitation practices in Brazilian intensive care units and to compare them with those of other countries participating in the Fluid-TRIPS. Methods: This was a prospective, international, cross-sectional, observational study in a convenience sample of intensive care units in 27 countries (including Brazil) using the Fluid-TRIPS database compiled in 2014. We described the patterns of fluid resuscitation use in Brazil compared with those in other countries and identified the factors associated with fluid choice. Results: On the study day, 3,214 patients in Brazil and 3,493 patients in other countries were included, of whom 16.1% and 26.8% (p < 0.001) received fluids, respectively. The main indication for fluid resuscitation was impaired perfusion and/or low cardiac output (Brazil: 71.7% versus other countries: 56.4%, p < 0.001). In Brazil, the percentage of patients receiving crystalloid solutions was higher (97.7% versus 76.8%, p < 0.001), and 0.9% sodium chloride was the most commonly used crystalloid (62.5% versus 27.1%, p < 0.001). The multivariable analysis suggested that the albumin levels were associated with the use of both crystalloids and colloids, whereas the type of fluid prescriber was associated with crystalloid use only. Conclusion: Our results suggest that crystalloids are more frequently used than colloids for fluid resuscitation in Brazil, and this discrepancy in frequencies is higher than that in other countries. Sodium chloride (0.9%) was the crystalloid most commonly prescribed. Serum albumin levels and the type of fluid prescriber were the factors associated with the choice of crystalloids or colloids for fluid resuscitation.
https://doi.org/10.5935/0103-507x.20210028
273 downloads
4.
Cross-cultural adaptation of the Internet Gaming Disorder Scale – Short Form (IGDS9-SF) to the Brazilian context
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Donadon, Mariana F.
; Chagas, Marcos H. N.
; Apolinário-da-Silva, Thiago D.
; Okino, Erika T. K.
; Hallak, Jaime E. C.
; Nicoletti, Êdela A.
; Pereira-Lima, Karina
; Degan, Edson A.
; Santos, Rafael G.
; Machado-de-Sousa, João Paulo
; Simei, João L. Q.
; Oliveira, Lucas M.
; Pontes, Halley M.
; Osório, Flávia L.
.
Abstract Introduction The Internet Gaming Disorder Scale – Short Form (IGDS9-SF) assesses the severity, harmful effects and/or consequences of excessive online and offline gaming. Its conciseness and theoretical foundations on current diagnostic criteria of gaming disorders make it a useful resource for clinical and screening settings. Objective To describe the process of cross-cultural adaptation of the IGDS9-SF to the Brazilian context. Methods The cross-cultural adaptation involved the steps of independent translation of the instrument, synthesis version, back-translation, pre-test and elaboration of the final version. Content validity assessment was conducted by a multidisciplinary committee of experts and consisted of both a quantitative analysis (calculation of content validity coefficients – CVC) and a qualitative analysis (assessment of the experts’ comments and suggestions). The pre-test sample consisted of 30 gamers with variable sociodemographic characteristics. Results The cross-cultural adaptation of the scale followed the proposed protocol, and the CVC was satisfactory (≥ 0.83) for all the structures and equivalences assessed. Most of the suggestions made by the experts were accepted (mainly adjustments and language standardization). The gamers who participated in the pre-test judged the scale easy to understand and did not suggest changes. Discussion The Brazilian version of the IGDS9-SF showed adequate content validity and is available for researchers and clinicians, as well as for the investigation of additional psychometric characteristics.
https://doi.org/10.1590/2237-6089-2019-0032
505 downloads
5.
Osteogenesis imperfecta in Brazilian patients
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Trancozo, Maira
; Moraes, Marcos V.D.
; Silva, Dalila A.
; Soares, Jéssica A.M.
; Barbirato, Clara
; Almeida, Márcio G.
; Santos, Lígia R.
; Rebouças, Maria R. G. O.
; Akel Jr, Akel N.
; Sipolatti, Valentim
; Nunes, Vanda R. R.
; Errera, Flavia I. V.
; Aguena, Meire
; Passos-Bueno, Maria R.
; Paula, Flavia de
.
Abstract Osteogenesis Imperfecta (OI) is a heterogeneous genetic disorder characterized by bone fragility and fracture. Mutations in 20 distinct genes can cause OI, and therefore, the genetic diagnosis of OI is frequently difficult to obtain because of the great number of genes that can be related with this disease. Studies that report the most frequently mutated genes in OI patients can help to improve molecular strategies for diagnosis of the disease. In order to characterize the mutation profile of OI in Brazilian patients, we analyzed 30 unrelated patients through SSCP screening, NGS gene panel, and/or Sanger sequencing for the 11 most frequently mutated genes in the database of mutations, including COL1A1, COL1A2, P3H1, CRTAP, PPIB, SERPINH1, SERPINF1, FKBP10, SP7, WNT1 and IFITM5. Disease-causing variants were identified in COL1A1, COL1A2, FKBP10, P3H1, and IFITM5. A total of 28 distinct mutations were identified, including seven novel changes. Our data show that the analysis of these five genes is able to detect at least 95% of causative mutations in OI disorder from Brazilian population. However, it has to be taken into considerations that distinct populations can have different frequencies of disease-causing variants. Hence, it is important to replicate this study in other groups.
https://doi.org/10.1590/1678-4685-gmb-2018-0043
1276 downloads
6.
Bovine central nervous system development
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Ferreira, Amanda O.
; Vasconcelos, Bruno G.
; Favaron, Phelipe O.
; Santos, Amilton C.
; Leandro, Rafael M.
; Pereira, Flávia T.V.
; Maria, Durvanei A.
; Miglino, Maria Angélica
.
RESUMO: Os estudos que descrevem o desenvolvimento do sistema nervoso central (SNC) são de suma importância para compreensão da organogênese e identificação dos prováveis eventos que resultam em malformações congênitas. Estes dados podem subsidiar novas pesquisas relacionadas ao desenvolvimento normal, e interpretação de malformações e alterações que ocorrem ao longo da organogênese do SNC, considerando neste momento a necessidade de estudos preliminares em modelos animais, os quais poderiam ser utilizados para pesquisas experimentais sobre a influência de agentes infecciosos como o Zika vírus, no desenvolvimento do sistema nervoso e suas relações com a microcefalia em humanos recém-nascidos. O presente estudo teve como objetivo descrever os aspectos morfológicos macro e microscópicos da organogênese do SNC de bovinos, buscando correlacionar os achados morfológicos com a idade gestacional. Todos os animais foram mensurados para detectar o período gestacional. Foram coletados e analisados 14 embriões e nove fetos de bovinos de diferentes idades gestacionais. No embrião bovino a partir do décimo sétimo dia de gestação, encontra-se a formação do tubo neural, o neuroporo cranial e neuroporo caudal, e formação dos somitos. Após 24 dias de desenvolvimento, são observadas na parte cranial do tubo neural cinco vesículas encefálicas denominadas: telencéfalo, diencéfalo, mesencéfalo, metencéfalo e mielencéfalo; e na parte caudal do tubo neural, encontra-se a medula espinhal primitiva. Entre 90 a 110 dias de gestação, observa-se a total diferenciação das cinco vesículas do SNC. Com 90 dias, são identificas as principais estruturas: (1) do telencéfalo, os hemisférios cerebrais, corpo caloso e fórnix; (2) do diencéfalo, a aderência intertalâmica, tálamo, hipotálamo e epitálamo (glândula pineal); (3) do mesencéfalo, os pedúnculos cerebrais e os corpos quadrigêmios; (4) do metencéfalo, a ponte e o cerebelo; (5) do mielencéfalo, a medula oblonga (ou bulbo); e (6) da medula espinhal primitiva, a medula espinhal. Após 110 dias, as cinco vesículas encefálicas e as suas subdivisões se encontram completamente desenvolvidas. Notou-se a presença da medula espinhal com as intumescências cervicotorácica e lombossacral. Em resumo, os resultados demonstram a formação do tubo neural a partir da placa neural do ectoderma, as vesículas encefálicas provenientes do tubo neural e posteriormente as subdivisões das estruturas e das cavidades, que representam a completa embriologia do sistema nervoso central.
ABSTRACT: Central nervous system (CNS) development researches are extremely important to the most common congenital disorders and organogenesis comprehension. However, few studies show the entire developmental process during the critical period. Present research can provide data to new researches related to normal development and abnormalities and changes that occur along the CNS organogenesis, especially nowadays with the need for preliminary studies in animal models, which could be used for experimental research on the influence of viruses, such as the influence of Zika virus on the development of the neural system and its correlation with microcephaly in human newborns. Then, present study describes CNS organogenesis in cattle according to microscopic and macroscopic aspects, identifying structures and correlating to gestational period. Fourteen embryos and nine bovine fetuses at different ages were collected and analyzed. All individuals were measured in order to detect the gestational period. Bovine embryo at 17 days age has its neural tube, cranial neuropore, caudal neuropore and somites developed. After 24 days of development, were observed in cranial part of neural tube five encephalic vesicles denominated: telencephalon, diencephalon, mesencephalon, metencephalon and myelencephalon. In addition, the caudal part of neural tube was identified with the primitive spinal cord. The primordial CNS differentiation occurred from 90 to 110 days. The five encephalic vesicles, primordial spinal cord and the cavities: third ventricule, mesencephalic aqueduct, fourth ventricle and central canal in spinal cord were observed. With 90 days, the main structures were identified: (1) cerebral hemispheres, corpus callosum and fornix, of the telencephalon; (2) interthalamic adhesion, thalamus, hypothalamus and epythalamus (glandula pinealis), of the diencephalon; (3) cerebral peduncles and quadruplets bodies, of the mesencephalon; (4) pons and cerebellum, of the metencephalon; (5) medulla oblongata or bulb, of the myelencephalon; and (6) spinal cord, of the primitive spinal cord. After 110 days of gestation, the five encephalic vesicles and its structures were completely developed. It was noted the presence of the spinal cord with the cervicothoracic and lumbossacral intumescences. In summary, the results describes the formation of the neural tube from the neural plate of the ectoderm, the encephalic vesicles derived from the neural tube and subsequent structural and cavities subdivisions, thus representing the complete embryology of the central nervous system.
https://doi.org/10.1590/1678-5150-pvb-5020
4199 downloads
7.
Induced changes in the growth of four plant species due to lead toxicity
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Batista, Adriana A.
; Santos, Jorge A. G.
; Bomfim, Marcela R.
; Moreira, Flávia M.
; Leal, Emylly F.
; Conceição, Joseane N. da
.
Revista Brasileira de Engenharia Agrícola e Ambiental
- Journal Metrics
RESUMO O chumbo é um metal tóxico que impacta o crescimento de plantas e os ecossistemas. Avaliou-se o potencial de bioacumulação de Pb nas espécies vetiver (Vetiveria zizanioides L.), girassol (Helianthus annuus L.), orelha de elefante (Alocasia macrorrhiza) e embaúba (Cecropia sp.) em cinco concentrações de Pb (0, 50, 100, 200 e 400 mg L-1) em solução nutritiva Hoagland e Arnon, meia força, constantemente aerada. Os tratamentos foram dispostos em delineamento experimental inteiramente casualizado em esquema fatorial 4 x 5, com 4 repetições. Durante 21 dias, a concentração do metal nas plantas aumentou linearmente com a concentração de exposição ao Pb. O vetiver foi a espécie com maior concentração de Pb na parte aérea (260,24 mg kg-1) e girassol na raiz (44.925,20 mg kg-1). A biomassa e o comprimento radicular de girassol foram estimulados até a concentração de 100 e 50,9 mg L-1 de Pb, respectivamente. Nenhuma das espécies atendeu aos critérios de hiperacumulação; entretanto, girassol e vetiver devem ser testados como espécies fitoestabilizadoras.
ABSTRACT Lead is a toxic metal that affects plant growth and the ecosystem. This study evaluated the lead (Pb) bioaccumulation potential of vetiver (Vetiveria zizanioides L.), sunflower (Helianthus annuus L.), elephant ear (Alocasia macrorrhiza) and ‘embaúba’ (Cecropia sp.). The plant species were tested in a 50% nutrient solution - Hoagland and Arnon, constantly aerated, containing five Pb concentrations: 0, 50, 100, 200 and 400 mg L-1). The treatments were arranged in a completely randomized design in a 4 x 5 factorial scheme, with four replicates. The Pb contents in the plants increased linearly with the Pb exposure concentration. Vetiver was the species with the highest Pb content in the shoots (260.24 mg kg-1) and sunflower, in the roots (44925.20 mg kg-1). Pb concentration of up to 100 and 50.9 mg L-1 stimulated sunflower biomass and root length, respectively. None of the evaluated species met the hyperaccumulator criterion; however, sunflower and vetiver have the potential to be tested for phytostabilization purposes.
https://doi.org/10.1590/1807-1929/agriambi.v21n5p327-332
1167 downloads
8.
SEASONAL CHEMICAL COMPOSITIONS OF THE ESSENTIAL OILS OF TWOEugenia SPECIES AND THEIR ACARICIDAL PROPERTIES
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Ribeiro, Paulo H. S.
; Santos, Maria L. dos
; Camara, Claudio A. G. da
; Born, Flávia S.
; Fagg, Christopher W.
.
The leaf essential oils of Eugenia lutescens Cambess andEugenia langsdorffii O. Berg, collected in the rainy (RS) and dry seasons (DS), were extracted by hydrodistillation and then characterized by a gas chromatography-flame ionization detector and a gas chromatography-mass spectrometer. The potential acaricidal activity and oviposition deterrence of these oils were evaluated against Tetranychus urticae . The oil yields were higher in the RS for E. lutescens, while those forE. langsdorffii were higher in the DS. α-Pinene and β-pinene were determined to be the major constituents of the oils fromE. lutescens, while bicyclogermacrene, spathulenol, and β-caryophyllene predominated in E. langsdorffii . Seasonal variations in the oils were primarily related to chemical diversity, and E. lutescens was more affected than was E. langsdorffii . The E. langsdorffii oil collected in the DS was most toxic to the spider mite, while the oils of E. lutescens and E. langsdorffii collected in the RS drastically reduced its egg quantities. This study successfully determined the periods of greater oil production and acaricidal activity.
https://doi.org/10.5935/0100-4042.20150161
1287 downloads
9.
Antidepressant effects of a single dose of ayahuasca in patients with recurrent depression: a preliminary report
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Osório, Flávia de L.
; Sanches, Rafael F.
; Macedo, Ligia R.
; dos Santos, Rafael G.
; Maia-de-Oliveira, João P.
; Wichert-Ana, Lauro
; de Araujo, Draulio B.
; Riba, Jordi
; Crippa, José A.
; Hallak, Jaime E.
.
Objectives: Ayahuasca (AYA), a natural psychedelic brew prepared from Amazonian plants and rich in dimethyltryptamine (DMT) and harmine, causes effects of subjective well-being and may therefore have antidepressant actions. This study sought to evaluate the effects of a single dose of AYA in six volunteers with a current depressive episode. Methods: Open-label trial conducted in an inpatient psychiatric unit. Results: Statistically significant reductions of up to 82% in depressive scores were observed between baseline and 1, 7, and 21 days after AYA administration, as measured on the Hamilton Rating Scale for Depression (HAM-D), the Montgomery-Åsberg Depression Rating Scale (MADRS), and the Anxious-Depression subscale of the Brief Psychiatric Rating Scale (BPRS). AYA administration resulted in nonsignificant changes in Young Mania Rating Scale (YMRS) scores and in the thinking disorder subscale of the BPRS, suggesting that AYA does not induce episodes of mania and/or hypomania in patients with mood disorders and that modifications in thought content, which could indicate psychedelic effects, are not essential for mood improvement. Conclusions: These results suggest that AYA has fast-acting anxiolytic and antidepressant effects in patients with a depressive disorder.
https://doi.org/10.1590/1516-4446-2014-1496
45825 downloads
10.
Diversity of Brazilian Fungi
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Maia, Leonor C.
; Carvalho Júnior, Aníbal A. de
; Cavalcanti, Laise de H.
; Gugliotta, Adriana de M.
; Drechsler-Santos, Elisandro R.
; Santiago, André L.M. de A.
; Cáceres, Marcela E. da S.
; Gibertoni, Tatiana B.
; Aptroot, André
; Giachini, Admir J.
; Soares, Adriene M. da S.
; Silva, Allyne C.G.
; Magnago, Altielys C.
; Goto, Bruno T.
; Lira, Carla R.S. de
; Montoya, Carlos A.S.
; Pires-Zottarelli, Carmen L.A.
; Silva, Danielle K.A. da
; Soares, Dartanhã J.
; Rezende, Diogo H.C.
; Luz, Edna D.M.N.
; Gumboski, Emerson L.
; Wartchow, Felipe
; Karstedt, Fernanda
; Freire, Fernando M.
; Coutinho, Flávia P.
; Melo, Georgea S. N. de
; Sotão, Helen M. P.
; Baseia, Iuri G.
; Pereira, Jadergudson
; Oliveira, Jadson J.S. de
; Souza, João F.
; Bezerra, José L.
; Neta, Lídia S. Araujo
; Pfenning, Ludwig H.
; Gusmão, Luís F.P.
; Neves, Maria A.
; Capelari, Marina
; Jaeger, Melissa C.W.
; Pulgarín, Melissa P.
; Menolli Junior, Nelson
; Medeiros, Priscila S. de
; Friedrich, Raquel C.S.
; Chikowski, Renata dos S.
; Pires, Ricardo M.
; Melo, Roger F.
; Silveira, Rosa M.B. da
; Urrea-Valencia, Salomé
; Cortez, Vagner G.
; Silva, Valéria F. da
.
Resumo Até 2010, o conhecimento sobre a diversidade de fungos do Brasil estava registrado em publicações esparsas de taxonomia e ecologia e em algumas poucas listas de espécies. Com a publicação do Catálogo de Plantas e Fungos do Brasil, e a disponibilização da lista online, tem sido possível agregar o conhecimento disperso. A versão ora apresentada acrescenta 2.111 nomes de espécies aos 3.608 listados em 2010. São citadas 5.719 espécies de fungos distribuídas em 1.246 gêneros, 102 ordens e 13 divisões, consistindo em considerável aumento em relação a 2010, quando estavam registrados 924 gêneros e 78 ordens. Predominam os Basidiomycota (2.741 espécies, em 22 ordens) e Ascomycota (1.881 espécies, em 41 ordens). A Mata Atlântica possui a maior quantidade de registros, com 3.017 espécies, seguido pela Amazonia (1.050), Caatinga (999), Cerrado (638) e Pampa e Pantanal com 84 e 35 espécies, respectivamente. A região Nordeste tem a maior riqueza (2.617 especies), seguida pelo Sudeste (2.252), Sul (1.995), Norte (1.301) e Centro Oeste (488 espécies). Em relação aos Estados da Federação, São Paulo (1.846 espécies), Pernambuco (1.611) e Rio Grande do Sul (1.377) são os mais diversos.
Abstract Knowledge about the Brazilian fungal diversity was, until 2010, recorded in few taxonomy and ecology publications, as well as in a handful of species lists. With the publication of the Catálogo de Plantas e Fungos do Brasil and the continued availability of an online list, it has been possible to aggregate this dispersed knowledge. The version presented here adds 2,111 species names to the 3,608 listed in 2010. A total of 5,719 species of fungi distributed in 1,246 genera, 102 orders and 13 phyla represents a considerable increase over the last five years, when only 924 genera and 78 orders were registered. Basidiomycota (2,741 species in 22 orders) and Ascomycota (1,881 species in 41 orders) predominate over other groups. The Atlantic Rainforest has the largest number of records, with 3,017 species, followed by Amazon Rainforest (1,050), Caatinga (999), Cerrado (638) and Pampa and Pantanal with 84 and 35 species, respectively. The Northeast region has the greatest richness (2,617 species), followed by Southeast (2,252), South (1,995), North (1,301) and Central-West (488 species). Regarding the States of the Federation, São Paulo with 1,846 species, Pernambuco with 1,611 and Rio Grande do Sul with 1,377 species are the most diverse.
https://doi.org/10.1590/2175-7860201566407
9322 downloads
11.
Growing knowledge: an overview of Seed Plant diversity in Brazil
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Zappi, Daniela C.
; Filardi, Fabiana L. Ranzato
; Leitman, Paula
; Souza, Vinícius C.
; Walter, Bruno M.T.
; Pirani, José R.
; Morim, Marli P.
; Queiroz, Luciano P.
; Cavalcanti, Taciana B.
; Mansano, Vidal F.
; Forzza, Rafaela C.
; Abreu, Maria C.
; Acevedo-Rodríguez, Pedro
; Agra, Maria F.
; Almeida Jr., Eduardo B.
; Almeida, Gracineide S.S.
; Almeida, Rafael F.
; Alves, Flávio M.
; Alves, Marccus
; Alves-Araujo, Anderson
; Amaral, Maria C.E.
; Amorim, André M.
; Amorim, Bruno
; Andrade, Ivanilza M.
; Andreata, Regina H.P.
; Andrino, Caroline O.
; Anunciação, Elisete A.
; Aona, Lidyanne Y.S.
; Aranguren, Yani
; Aranha Filho, João L.M.
; Araújo, Andrea O.
; Araújo, Ariclenes A.M.
; Araújo, Diogo
; Arbo, María M.
; Assis, Leandro
; Assis, Marta C.
; Assunção, Vivian A.
; Athiê-Souza, Sarah M.
; Azevedo, Cecilia O.
; Baitello, João B.
; Barberena, Felipe F.V.A.
; Barbosa, Maria R.V.
; Barros, Fábio
; Barros, Lucas A.V.
; Barros, Michel J.F.
; Baumgratz, José F.A.
; Bernacci, Luis C.
; Berry, Paul E.
; Bigio, Narcísio C.
; Biral, Leonardo
; Bittrich, Volker
; Borges, Rafael A.X.
; Bortoluzzi, Roseli L.C.
; Bove, Cláudia P.
; Bovini, Massimo G.
; Braga, João M.A.
; Braz, Denise M.
; Bringel Jr., João B.A.
; Bruniera, Carla P.
; Buturi, Camila V.
; Cabral, Elza
; Cabral, Fernanda N.
; Caddah, Mayara K.
; Caires, Claudenir S.
; Calazans, Luana S.B.
; Calió, Maria F.
; Camargo, Rodrigo A.
; Campbell, Lisa
; Canto-Dorow, Thais S.
; Carauta, Jorge P.P.
; Cardiel, José M.
; Cardoso, Domingos B.O.S.
; Cardoso, Leandro J.T.
; Carneiro, Camila R.
; Carneiro, Cláudia E.
; Carneiro-Torres, Daniela S.
; Carrijo, Tatiana T.
; Caruzo, Maria B.R.
; Carvalho, Maria L.S.
; Carvalho-Silva, Micheline
; Castello, Ana C.D.
; Cavalheiro, Larissa
; Cervi, Armando C.
; Chacon, Roberta G.
; Chautems, Alain
; Chiavegatto, Berenice
; Chukr, Nádia S.
; Coelho, Alexa A.O.P.
; Coelho, Marcus A.N.
; Coelho, Rubens L.G.
; Cordeiro, Inês
; Cordula, Elizabeth
; Cornejo, Xavier
; Côrtes, Ana L.A.
; Costa, Andrea F.
; Costa, Fabiane N.
; Costa, Jorge A.S.
; Costa, Leila C.
; Costa-e-Silva, Maria B.
; Costa-Lima, James L.
; Cota, Maria R.C.
; Couto, Ricardo S.
; Daly, Douglas C.
; De Stefano, Rodrigo D.
; De Toni, Karen
; Dematteis, Massimiliano
; Dettke, Greta A.
; Di Maio, Fernando R.
; Dórea, Marcos C.
; Duarte, Marília C.
; Dutilh, Julie H.A.
; Dutra, Valquíria F.
; Echternacht, Lívia
; Eggers, Lilian
; Esteves, Gerleni
; Ezcurra, Cecilia
; Falcão Junior, Marcus J.A.
; Feres, Fabíola
; Fernandes, José M.
; Ferreira, D.M.C.
; Ferreira, Fabrício M.
; Ferreira, Gabriel E.
; Ferreira, Priscila P.A.
; Ferreira, Silvana C.
; Ferrucci, Maria S.
; Fiaschi, Pedro
; Filgueiras, Tarciso S.
; Firens, Marcela
; Flores, Andreia S.
; Forero, Enrique
; Forster, Wellington
; Fortuna-Perez, Ana P.
; Fortunato, Reneé H.
; Fraga, Cléudio N.
; França, Flávio
; Francener, Augusto
; Freitas, Joelcio
; Freitas, Maria F.
; Fritsch, Peter W.
; Furtado, Samyra G.
; Gaglioti, André L.
; Garcia, Flávia C.P.
; Germano Filho, Pedro
; Giacomin, Leandro
; Gil, André S.B.
; Giulietti, Ana M.
; A.P.Godoy, Silvana
; Goldenberg, Renato
; Gomes da Costa, Géssica A.
; Gomes, Mário
; Gomes-Klein, Vera L.
; Gonçalves, Eduardo Gomes
; Graham, Shirley
; Groppo, Milton
; Guedes, Juliana S.
; Guimarães, Leonardo R.S.
; Guimarães, Paulo J.F.
; Guimarães, Elsie F.
; Gutierrez, Raul
; Harley, Raymond
; Hassemer, Gustavo
; Hattori, Eric K.O.
; Hefler, Sonia M.
; Heiden, Gustavo
; Henderson, Andrew
; Hensold, Nancy
; Hiepko, Paul
; Holanda, Ana S.S.
; Iganci, João R.V.
; Imig, Daniela C.
; Indriunas, Alexandre
; Jacques, Eliane L.
; Jardim, Jomar G.
; Kamer, Hiltje M.
; Kameyama, Cíntia
; Kinoshita, Luiza S.
; Kirizawa, Mizué
; Klitgaard, Bente B.
; Koch, Ingrid
; Koschnitzke, Cristiana
; Krauss, Nathália P.
; Kriebel, Ricardo
; Kuntz, Juliana
; Larocca, João
; Leal, Eduardo S.
; Lewis, Gwilym P.
; Lima, Carla T.
; Lima, Haroldo C.
; Lima, Itamar B.
; Lima, Laíce F.G.
; Lima, Laura C.P.
; Lima, Leticia R.
; Lima, Luís F.P.
; Lima, Rita B.
; Lírio, Elton J.
; Liro, Renata M.
; Lleras, Eduardo
; Lobão, Adriana
; Loeuille, Benoit
; Lohmann, Lúcia G.
; Loiola, Maria I.B.
; Lombardi, Julio A.
; Longhi-Wagner, Hilda M.
; Lopes, Rosana C.
; Lorencini, Tiago S.
; Louzada, Rafael B.
; Lovo, Juliana
; Lozano, Eduardo D.
; Lucas, Eve
; Ludtke, Raquel
; Luz, Christian L.
; Maas, Paul
; Machado, Anderson F.P.
; Macias, Leila
; Maciel, Jefferson R.
; Magenta, Mara A.G.
; Mamede, Maria C.H.
; Manoel, Evelin A.
; Marchioretto, Maria S.
; Marques, Juliana S.
; Marquete, Nilda
; Marquete, Ronaldo
; Martinelli, Gustavo
; Martins da Silva, Regina C.V.
; Martins, Ângela B.
; Martins, Erika R.
; Martins, Márcio L.L.
; Martins, Milena V.
; Martins, Renata C.
; Matias, Ligia Q.
; Maya-L., Carlos A.
; Mayo, Simon
; Mazine, Fiorella
; Medeiros, Debora
; Medeiros, Erika S.
; Medeiros, Herison
; Medeiros, João D.
; Meireles, José E.
; Mello-Silva, Renato
; Melo, Aline
; Melo, André L.
; Melo, Efigênia
; Melo, José I.M.
; Menezes, Cristine G.
; Menini Neto, Luiz
; Mentz, Lilian A.
; Mezzonato, A.C.
; Michelangeli, Fabián A.
; Milward-de-Azevedo, Michaele A.
; Miotto, Silvia T.S.
; Miranda, Vitor F.O.
; Mondin, Cláudio A.
; Monge, Marcelo
; Monteiro, Daniele
; Monteiro, Raquel F.
; Moraes, Marta D.
; Moraes, Pedro L.R.
; Mori, Scott A.
; Mota, Aline C.
; Mota, Nara F.O.
; Moura, Tania M.
; Mulgura, Maria
; Nakajima, Jimi N.
; Nardy, Camila
; Nascimento Júnior, José E.
; Noblick, Larry
; Nunes, Teonildes S.
; O'Leary, Nataly
; Oliveira, Arline S.
; Oliveira, Caetano T.
; Oliveira, Juliana A.
; Oliveira, Luciana S.D.
; Oliveira, Maria L.A.A.
; Oliveira, Regina C.
; Oliveira, Renata S.
; Oliveira, Reyjane P.
; Paixão-Souza, Bruno
; Parra, Lara R.
; Pasini, Eduardo
; Pastore, José F.B.
; Pastore, Mayara
; Paula-Souza, Juliana
; Pederneiras, Leandro C.
; Peixoto, Ariane L.
; Pelissari, Gisela
; Pellegrini, Marco O.O.
; Pennington, Toby
; Perdiz, Ricardo O.
; Pereira, Anna C.M.
; Pereira, Maria S.
; Pereira, Rodrigo A.S.
; Pessoa, Clenia
; Pessoa, Edlley M.
; Pessoa, Maria C.R.
; Pinto, Luiz J.S.
; Pinto, Rafael B.
; Pontes, Tiago A.
; Prance, Ghillean T.
; Proença, Carolyn
; Profice, Sheila R.
; Pscheidt, Allan C.
; Queiroz, George A.
; Queiroz, Rubens T.
; Quinet, Alexandre
; Rainer, Heimo
; Ramos, Eliana
; Rando, Juliana G.
; Rapini, Alessandro
; Reginato, Marcelo
; Reis, Ilka P.
; Reis, Priscila A.
; Ribeiro, André R.O.
; Ribeiro, José E.L.S.
; Riina, Ricarda
; Ritter, Mara R.
; Rivadavia, Fernando
; Rocha, Antônio E.S.
; Rocha, Maria J.R.
; Rodrigues, Izabella M.C.
; Rodrigues, Karina F.
; Rodrigues, Rodrigo S.
; Rodrigues, Rodrigo S.
; Rodrigues, Vinícius T.
; Rodrigues, William
; Romaniuc Neto, Sérgio
; Romão, Gerson O.
; Romero, Rosana
; Roque, Nádia
; Rosa, Patrícia
; Rossi, Lúcia
; Sá, Cyl F.C.
; Saavedra, Mariana M.
; Saka, Mariana
; Sakuragui, Cássia M.
; Salas, Roberto M.
; Sales, Margareth F.
; Salimena, Fatima R.G.
; Sampaio, Daniela
; Sancho, Gisela
; Sano, Paulo T.
; Santos, Alessandra
; Santos, Élide P.
; Santos, Juliana S.
; Santos, Marianna R.
; Santos-Gonçalves, Ana P.
; Santos-Silva, Fernanda
; São-Mateus, Wallace
; Saraiva, Deisy P.
; Saridakis, Dennis P.
; Sartori, Ângela L.B.
; Scalon, Viviane R.
; Schneider, Ângelo
; Sebastiani, Renata
; Secco, Ricardo S.
; Senna, Luisa
; Senna-Valle, Luci
; Shirasuna, Regina T.
; Silva Filho, Pedro J.S.
; Silva, Anádria S.
; Silva, Christian
; Silva, Genilson A.R.
; Silva, Gisele O.
; Silva, Márcia C.R.
; Silva, Marcos J.
; Silva, Marcos J.
; Silva, Otávio L.M.
; Silva, Rafaela A.P.
; Silva, Saura R.
; Silva, Tania R.S.
; Silva-Gonçalves, Kelly C.
; Silva-Luz, Cíntia L.
; Simão-Bianchini, Rosângela
; Simões, André O.
; Simpson, Beryl
; Siniscalchi, Carolina M.
; Siqueira Filho, José A.
; Siqueira, Carlos E.
; Siqueira, Josafá C.
; Smith, Nathan P.
; Snak, Cristiane
; Soares Neto, Raimundo L.
; Soares, Kelen P.
; Soares, Marcos V.B.
; Soares, Maria L.
; Soares, Polyana N.
; Sobral, Marcos
; Sodré, Rodolfo C.
; Somner, Genise V.
; Sothers, Cynthia A.
; Sousa, Danilo J.L.
; Souza, Elnatan B.
; Souza, Élvia R.
; Souza, Marcelo
; Souza, Maria L.D.R.
; Souza-Buturi, Fátima O.
; Spina, Andréa P.
; Stapf, María N.S.
; Stefano, Marina V.
; Stehmann, João R.
; Steinmann, Victor
; Takeuchi, Cátia
; Taylor, Charlotte M.
; Taylor, Nigel P.
; Teles, Aristônio M.
; Temponi, Lívia G.
; Terra-Araujo, Mário H.
; Thode, Veronica
; Thomas, W.Wayt
; Tissot-Squalli, Mara L.
; Torke, Benjamin M.
; Torres, Roseli B.
; Tozzi, Ana M.G.A.
; Trad, Rafaela J.
; Trevisan, Rafael
; Trovó, Marcelo
; Valls, José F.M.
; Vaz, Angela M.S.F.
; Versieux, Leonardo
; Viana, Pedro L.
; Vianna Filho, Marcelo D.M.
; Vieira, Ana O.S.
; Vieira, Diego D.
; Vignoli-Silva, Márcia
; Vilar, Thaisa
; Vinhos, Franklin
; Wallnöfer, Bruno
; Wanderley, Maria G.L.
; Wasshausen, Dieter
; Watanabe, Maurício T.C.
; Weigend, Maximilian
; Welker, Cassiano A.D.
; Woodgyer, Elizabeth
; Xifreda, Cecilia C.
; Yamamoto, Kikyo
; Zanin, Ana
; Zenni, Rafael D.
; Zickel, Carmem S
.
Resumo Um levantamento atualizado das plantas com sementes e análises relevantes acerca desta biodiversidade são apresentados. Este trabalho se iniciou em 2010 com a publicação do Catálogo de Plantas e Fungos e, desde então vem sendo atualizado por mais de 430 especialistas trabalhando online. O Brasil abriga atualmente 32.086 espécies nativas de Angiospermas e 23 espécies nativas de Gimnospermas e estes novos dados mostram um aumento de 3% da riqueza em relação a 2010. A Amazônia é o Domínio Fitogeográfico com o maior número de espécies de Gimnospermas, enquanto que a Floresta Atlântica possui a maior riqueza de Angiospermas. Houve um crescimento considerável no número de espécies e nas taxas de endemismo para a maioria dos Domínios (Caatinga, Cerrado, Floresta Atlântica, Pampa e Pantanal), com exceção da Amazônia que apresentou uma diminuição de 2,5% de endemicidade. Entretanto, a maior parte das plantas com sementes que ocorrem no Brasil (57,4%) é endêmica deste território. A proporção de formas de vida varia de acordo com os diferentes Domínios: árvores são mais expressivas na Amazônia e Floresta Atlântica do que nos outros biomas, ervas são dominantes no Pampa e as lianas apresentam riqueza expressiva na Amazônia, Floresta Atlântica e Pantanal. Este trabalho não só quantifica a biodiversidade brasileira, mas também indica as lacunas de conhecimento e o desafio a ser enfrentado para a conservação desta flora.
Abstract An updated inventory of Brazilian seed plants is presented and offers important insights into the country's biodiversity. This work started in 2010, with the publication of the Plants and Fungi Catalogue, and has been updated since by more than 430 specialists working online. Brazil is home to 32,086 native Angiosperms and 23 native Gymnosperms, showing an increase of 3% in its species richness in relation to 2010. The Amazon Rainforest is the richest Brazilian biome for Gymnosperms, while the Atlantic Rainforest is the richest one for Angiosperms. There was a considerable increment in the number of species and endemism rates for biomes, except for the Amazon that showed a decrease of 2.5% of recorded endemics. However, well over half of Brazillian seed plant species (57.4%) is endemic to this territory. The proportion of life-forms varies among different biomes: trees are more expressive in the Amazon and Atlantic Rainforest biomes while herbs predominate in the Pampa, and lianas are more expressive in the Amazon, Atlantic Rainforest, and Pantanal. This compilation serves not only to quantify Brazilian biodiversity, but also to highlight areas where there information is lacking and to provide a framework for the challenge faced in conserving Brazil's unique and diverse flora.
https://doi.org/10.1590/2175-7860201566411
33340 downloads
12.
Life history of three catfish species (Siluriformes: Ariidae) from southeastern Brazil
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Denadai, Márcia Regina
; Bessa, Eduardo
; Santos, Flávia Borges
; Fernandez, Wellington Silva
; Santos, Fernanda Motta da Costa
; Feijó, Mônica Malagutti
; Arcuri, Andreza Cristina Dias
; Turra, Alexander
.
Este estudo teve como objetivo avaliar a distribuição espaço-temporal, reprodução e dieta dos bagres Genidens genidens, G. barbus e Aspistor luniscutis na Enseada de Caraguatatuba. Seus tamanhos foram registrados e o sexo e o estágio reprodutivo identificados. A abundância foi comparada entre areas (sul e norte) e entre meses (agosto/2003 a outubro/2004). As espécies tiveram distribuições espaciais distintas, permitindo sua coexistência. A distribuição temporal reflete sua tendência por migrar no períoo reprodutivo, evidenciado pela dominância de indivíduos pequenos e imaturos na enseada. Houve uma tendência de G. genidens reproduzir no inverno e A. luniscutis na primavera. G. genidens teve sua dieta constituida de crustáceos, moluscos (conchas), escamas de peixes, ostrácodes e sifões de bivalves. G. barbus revelou uma grande dominância por misidáceos, seguido por peixes (ossos e escamas). Para A. luniscutis, a dieta foi baseada em escamas de peixes e crustáceos. Grande quantidade de material orgânico particulado foi observado na dieta das espécies, como já conhecido para bagres estuarinos. O consumo de escamas de peixes pode refletir um hábito lepdofágico. Pequena sobreposição na dieta foi observada entre as espécies, refletindo distinções no ambiente como também nas proporções ingeridas de cada item.
This study evaluated the spatio-temporal distribution, reproduction and diet of the catfishes Genidens genidens, G. barbus and Aspistor luniscutis in Caraguatatuba Bay. Their sizes were recorded and the sex and reproductive stage identified. The abundance was compared between areas (South and North) and among months (August 2003 - October 2004). The species had different spatial distributions, allowing them to coexist. The temporal distribution reflected their tendencies to migrate in the reproductive period, as evidenced by the dominance of small immature individuals in the bay. G. genidens tended to reproduce in winter, and A. luniscutis in spring. The diet of G. genidens consisted of crustaceans, mollusks (shells), fish scales, ostracods, and bivalve siphons. G. barbus consumed a high proportion of mysids, followed by fish (bones and scales). For A. luniscutis, the diet was based on fish scales and crustaceans. High quantities of particulate organic matter were observed in the diet of all three species, as previously known for estuarine catfishes. The consumption of fish scales may reflect a lepidophagic habit. A small overlap was observed among the diets, reflecting differences in their environments as well as in the proportions of each item ingested.
4036 downloads
Cited 3 times in SciELO
13.
Citral reduces nociceptive and inflammatory response in rodents
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Quintans-Júnior, Lucindo J.
; Guimarães, Adriana G.
; Santana, Marilia T. de
; Araújo, Bruno E.S.
; Moreira, Flávia V.
; Bonjardim, Leonardo R.
; Araújo, Adriano A. S.
; Siqueira, Jullyana S.
; Antoniolli, Ângelo R.
; Botelho, Marco A.
; Almeida, Jackson R. G. S.
; Santos, Márcio R. V.
.
Citral (CIT), which contains the chiral enantiomers, neral (cis) and geranial (trans), is the majority monoterpene from Lippia alba and Cymbopogon citratus. The present study aimed to evaluate CIT for antinociceptive and anti-inflammatory activities in rodents. Antinociceptive and anti-inflammatory effects were studied by measuring nociception through acetic acid and formalin tests, while inflammation was verified by inducing peritonitis and paw edema with carrageenan. All tested doses of CIT had significant protection (p<0.001) against acetic acid (0.8%) induced nociceptive behavior and the effects were also similar to morphine while formalin induced nociception was significantly protected (p<0.05) only at higher dose (200 mg/kg) of CIT in the first phase of the test. CIT significantly reduce (p<0.001) nociceptive behavior emanating from inflammation in second phase at all the doses.The pretreatment with CIT (100 and 200 mg/kg) significantly reduced the paw edema induced by carrageenan. Moreover, systemic treatment with CIT (100 and 200 mg/kg) significantly reduced (p<0.001) the leukocyte migration in the carrageenan-induced migration to the peritoneal cavity. Our investigation shows that CIT possess significant central and peripheral antinociceptive effects. It was also verified an anti-inflammatory activity. All together these results suggest that CIT might represent important tool for treatment of painful conditions.
3348 downloads
14.
Vasorelaxant effect of Hyptis fruticosa Salzm. ex Benth., Lamiaceae, dichloromethane extract on rat mesenteric artery
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Moreira, Ítalo J. A.
; Moreno, Maria P. N.
; Fernandes, Maria F. G.
; Fernandes, João B.
; Moreira, Flávia V.
; Antoniolli, Ângelo R.
; Santos, Márcio R.V.
.
O efeito vasorelaxante do extrato diclorometano de Hyptis fruticosa Salzm. ex Benth., Lamiaceae (HFDE), em anéis isolados de artéria mesentérica de ratos foi avaliado nesse estudo. Em anéis intactos, pré-contraídos com fenilefrina (10 µM), HFDE (0,1-3000 µg/mL) induziu vasorelaxamento de maneira dependente de concentração (Emax = 119±14%; n = 6), o qual não foi afetado após remoção do endotélio (Emax = 116±6%; n = 6), após KCl 20 mM (Emax = 135±9%; n = 6) ou em anéis pré-contraídos com KCl 80 mM (Emax = 125±4%; n = 6). Em anéis sem endotélio, HFDE (300 ou 1000 µg/mL) inibiu as contrações induzidas por CaCl2 (inibição máxima = 25±7% e 95±1%, respectivamente). Além disso, HFDE promoveu um vasorelaxamento adicional (15±3%; n = 7) sobre o relaxamento máximo de 10 µM de nifedipina (78±3%, n = 7). Em conclusão, HFDE induz efeito vasorelaxante através de uma via independente de endotélio, possivelmente devido à inibição do influxo de Ca2+ através de canais de Ca2+ operados por voltagem.
Vasorelaxant effect of Hyptis fruticosa dichloromethane extract (HFDE) on isolated rings of rat mesenteric artery was evaluated in this study. In intact rings, HFDE (0.1-3000 µg/mL) induced concentration-dependent vasorelaxations (Emax = 119±14%; n = 6) of phenylephrine tonus that were not modified after endothelium removal (Emax = 116±6%; n = 6), after KCl 20 mM (Emax = 135±9%; n = 6) or in rings pre-contracted with KCl 80 mM (Emax = 125±4%; n = 6). In endothelium denuded rings, HFDE (300 or 1000 µg/mL) inhibited contractions induced by CaCl2 (maximal inhibition = 25±7% and 95±1%; respectively). Furthermore, HFDE promoted an additional vasorelaxation (15±3%; n = 7) after maximal response of 10 µM nifedipine (78±3%; n = 7). In conclusion, HFDE induces vasorelaxant effect through an endothelium-independent pathway, which appears to be due in major part to inhibition of the Ca2+ influx through voltage-operated Ca2+ channels.
1926 downloads
15.
Immunostimulatory effects of the phenolic compounds from lichens on nitric oxide and hydrogen peroxide production
Facebook Twitter
Facebook Twitter
- Other social networks
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Other networks
- Metrics
Carlos, Iracilda Z.
; Carli, Camila B. A.
; Maia, Danielle C. G.
; Benzatti, Fernanda P.
; Lopes, Flavia C. M.
; Roese, Fernanda M.
; Watanabe, Márcio
; Micheletti, Ana C.
; Santos, Lourdes C. dos
; Vilegas, Wagner
; Honda, Neli K.
.
Os efeitos dos compostos isolados de líquens brasileiros e seus derivados na produção de NO e H2O2 foram estudados utilizando macrófagos murinos na tentativa de desvendar suas possíveis propriedades imunomodulatórias. A citotoxicidade dos compostos foi estudada utilizando o ensaio de MTT. A estimulação dos macrófagos foi avaliada através da determinação de NO (metodologia de Griess) e H2O2 (peroxidase de raíz forte/vermelho de fenol) no sobrenadante de culturas de macrófagos peritoneais de camundongos Swiss. Este estudo demonstrou atividade estimulante de alguns compostos fenólicos e seus derivados na produção de NO e H2O2. A relação estrutura atividade sugere inúmeras direções sintéticas para futuros melhoramentos da atividade imunológica.
The effects of isolated compounds from Brazilian lichens and their derivatives on H2O2 and NO production were studied using murine macrophages as a part of an attempt to understand their possible immunomodulatory properties. The compound cytotoxicity was studied using MTT assay. Macrophage stimulation was evaluated by the determination of NO (Griess assay) and H2O2 (horseradish peroxidase/phenol red) in supernatants of peritoneal macrophage cultures of Swiss mice. This research demonstrated stimulatory activities of some phenolic compounds isolated from lichens and their derivatives on H2O2 and NO production. Structure-activity relationships suggest several synthetic directions for further improvement of immunological activity.
5165 downloads
Showing
itens per page
Page
of 2
Next
Statistics of
Send result
Sem resultados
No documents were found for your search
Glossary and search help
You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.
For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:ti:dengue and publication_year:2015 and aff_country:Brasil
See below the complete list of search indexes that can be used:
Index code | Element |
---|---|
ti | article title |
au | author |
kw | article keywords |
subject | subject (title words, abstract and keywords) |
ab | abstract |
ta | journal short title (e.g. Cad. Saúde Pública) |
journal_title | journal full title (e.g. Cadernos de Saúde Pública) |
la | publication language code (e.g. pt - Portuguese, es - Spanish) |
type | document type |
pid | publication identifier |
publication_year | publication year of publication |
sponsor | sponsor |
aff_country | country code of the author's affiliation |
aff_institution | author affiliation institution |
volume | article volume |
issue | article issue |
elocation | elocation |
doi | DOI number |
issn | journal ISSN |
in | SciELO colection code (e.g. scl - Brasil, col - Colômbia) |
use_license | article usage license code |