190 results on '"Carolina Bueno"'
Search Results
152. New ring C-seco limonoids from Brazilian Melia azedarach and their cytotoxic activity
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Hironobu Takahashi, Carolina Bueno Wandscheer, Honglei Zhou, Yoshiyasu Fukuyama, José D. Fontana, Atsuko Hamazaki, Tomoyuki Esumi, and Hiroaki Tsujimoto
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Limonins ,Stereochemistry ,Melia azedarach ,Pharmaceutical Science ,Pharmacognosy ,Ring (chemistry) ,Analytical Chemistry ,Triterpene ,Drug Discovery ,Tumor Cells, Cultured ,Humans ,Cytotoxicity ,Nuclear Magnetic Resonance, Biomolecular ,Pharmacology ,chemistry.chemical_classification ,Meliaceae ,Plants, Medicinal ,biology ,Molecular Structure ,Organic Chemistry ,biology.organism_classification ,Antineoplastic Agents, Phytogenic ,Terpenoid ,Complementary and alternative medicine ,chemistry ,Cyclization ,Fruit ,Molecular Medicine ,Drug Screening Assays, Antitumor ,Lactone ,Brazil - Abstract
A methanol extract of the ripe fruits of Melia azedarach collected in Curitiba, Parana, Brazil, afforded seven new ring C-seco limonoids (1-7) together with three known limonoids (8-10). The structures of the new compounds were elucidated by NMR and MS analysis and comparison of spectral data with those of previously known compounds. Compounds 4 and 5 exhibited significant inhibitory activity against HeLa S3 cancer cells, whereas 1, 2, 3, and 8 showed weak cytotoxicity.
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- 2004
153. Larvicidal action of ethanolic extracts from fruit endocarps of Melia azedarach and Azadirachta indica against the dengue mosquito Aedes aegypti
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Yoshiyasu Fukuyama, Mario Antonio Navarro da Silva, José D. Fontana, Jonathan L. Wohlke, Carolina Bueno Wandscheer, Juliana Adelmann, and Jonny E. Duque
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Insecticides ,Melia azedarach ,Aedes aegypti ,Biology ,Toxicology ,Indian-lilac ,Dengue ,food ,Aedes ,parasitic diseases ,Botany ,Toxicity Tests ,Bioassay ,Animals ,Pest Control, Biological ,Meliaceae ,Azadirachta ,Traditional medicine ,Plant Extracts ,fungi ,biology.organism_classification ,food.food ,Insect Vectors ,Biopesticide ,Larva ,Seeds ,Instar - Abstract
Ethanolic extracts from the kernels of ripe fruits from the Indian Lilac Melia azedarach and from the well-known Neem tree, Azadirachta indica were assayed against larvae of Aedes aegypti, the mosquito vector of dengue fever. The lethality bioassays were carried out according to the recommendations of the World Health Organization. Extracts were tested at doses ranging from 0.0033 to 0.05 g% in an aqueous medium for 24 and 48 h, at 25 or 30 degrees C, with or without feeding of the larvae. LC50, LC95 and LC99 were determined. Both seed extracts proved lethal for third to fourth instar larvae. Non-fed A. aegypti larvae were more susceptible to Azadirachta extracts at both temperatures. Under a more realistic environmental situation, namely with fed larvae at 25 degrees C, the death rates caused by the Melia extract were higher, although at 30 degrees C the extract of Azadirachta had an even higher lethality. Inter allia, the LC50 values for the crude extracts of these two members of the Meliaceae ranged from 0.017 to 0.034 g% while the LC99 values ranged from 0.133 to 0.189 g%. Since no downstream processing was undertaken to purify the active agents in the extracts, our findings seem very promising, suggesting that it may be possible to increase the larvicidal activity further by improving the extraction and the fractionation of the crude limonoids, for instance removing the co-extracted natural fats.
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- 2004
154. Bioatividade comparativa entre Melia azedarach (Cinamomo)e Azadirachta indica (Nim) : letalidade para larvas de Aedes aegypti
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Wandscheer, Carolina Bueno, Universidade Federal do Paraná. Setor de Ciências da Saúde. Programa de Pós-Graduação em Ciências Farmacêuticas, and Fontana, José Domingos, 1944
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Dengue ,Azadirachta indica ,Aedes ,Melia azedarach - Abstract
Orientador : José Domingos Fontana Dissertaçao (mestrado) - Universidade Federal do Paraná, Setor de Ciencias da Saúde. Programa de Pós-Graduaçao em Ciencias Farmaceuticas, área de concentraçao: Insumos Inclui bibliografia Resumo: No Brasil foram registrados 123.948 casos de dengue em 2003. Melia azedarach (cinamomo ou "santa bárbara") e Azadirachta indica (a árvore nim) são plantas meliáceas originárias da Ásia com futuro promissor para o fito-controle de pragas e de ampla distribuição mundial, sendo a primeira muito comum em todo território brasileiro. Apresentam propriedades bioinseticidas inibindo a alimentação e bloqueando crescimentos de insetos, incluindo a etapa fundamental de quitinogênese ou de formação / regeneração do exo-esqueleto durante a muda ou ecdise. Utilizamos extratos etanólicos, metanólicos e clorofórmico-metanólico de caroços de frutos maduros de cinamomo no controle biológico de Aedes aegypti, impedindo a evolução das larvas até a fase adulta, ou seja, impondo letalidade. Extratos equivalentes de Nim também foram ensaiados, normalizando as concentrações dos sólidos totais de todos ensaios em um solvente de menor toxicidade, o etanol, também empregado nos controles. Nestes ensaios de letalidade para as larvas do mosquito-da-dengue os parâmetros explorados foram então a concentração de princípios bioativos das duas meliáceas, por separado, a faixa de temperatura (25°C e 30°C) e ainda a alimentação ou não das larvas (ração padrão) durante o tempo de ação dos fitopesticidas naturais. As leituras foram feitas após 48 horas e determinadas as CL50, CL95 e CL99. Os resultados com M. azedarach (cinamomo) são inéditos e as CL(s) obtidas, muito promissoras tais como as CL50 de 0,035g% e de 0,059g% a 25°C, respectivamente obtidos com extrato etanólico / com alimentação e com extrato clorofórmicometanólico / sem alimentação, este segundo coincidindo em eficiência com o primeiro no caso da adoção de alimentação. O extrato mais polar, metanólico, resultou em letalidade ainda mais pronunciada para as larvas com uma CL50 de 0,014g% a 25°C na ausência de alimento, comparativamente à CL50 de apenas 0,0043g/%, elevando-se a temperatura do ensaio para 30°C, este último o mais expressivo de todos resultados obtidos. Os dados referentes às CL50 para A. indica (nim) estão de acordo com os encontrados na literatura e se situam, na média dos ensaios, abaixo dos valores nesta dissertação obtidos com M. azedarach (cinamomo), com destaque para o extrato etanólico de Nim com uma CL50 a 30°C de 0,017g% no caso de larvas alimentadas. No escopo de viabilizar uma exploração ainda mais racional e preservacionista do cinamomo - até mesmo como um mecanismo de inclusão social para pequenas comunidades sujeitas à febre da dengue - ou seja, a integralidade de uso dos frutos colhidos, a polpa envoltória deles (mesocarpo) foi utilizada, com sucesso, para o cultivo da levedura astaxantinogênica Xanthophyllomyces dendrorhous (antes, Phaffia rhodozyma), cujo pigmento carotenóide oxigenado (astaxantina) é amplamente utilizado em aquicultura e avicultura. Abstract: It has been registered 123.948 cases of dengue in Brazil during 2003. Melia azedarach ("cinnamon" or "santa bárbara) and Azadirachta indica (neem) are meliaceae plants originally from Asia with a promising future for pests phytocontrol and worldwide distribution, the first one being very common in the Brazilian territory. They display bioinsecticide properties through the feed deterrance and blocking insect growth what includes the oustanding step of chitinogenesis, namely the formation / regeneration of the insect exoskeleton during the moult (ecdisis). Ethanolic, methanolic, and chloroformic-methanolic extracts from ripen fruit kernels were used in the biological control of Aedes aegypti, hampering the evolution of larvae till the adult phase imposing their death. Similar extracts from Nim were assayed, too, normalizing the total solids concentration of all extracts but in a less toxic solvent, ethanol, also used in the controls. In these lethality assays to the dengue mosquito the explored parameters were then the concentration of bioactives from both meliaceae (separately), the temperature range (25°C or 30°C), and the larvae feeding or not (standard fodder) during the time course of the action of the natural phytopesticides. Readings were carried out after 48 h for the determination of LC50, LC95, and LC99. Results obtained with M. azedarach ("cinnamon") are original and the respective LC(s), promising as follows: LC50 0.035g% and 0.059% at 25°C, respectively obtained with the ethanolic extract / with feeding and with the chloroformic-methanolic extract / without feeding, the latter in coincidence with the first one in the case of larvae feeding. The most polar extract, methanolic, resulted in a even more marked lethality rate with a LC50 of 0.014g% at 25°C, without feeding, comparatively to a LC50 of only 0.0043g% when the temperature was raised to 30°C, this result being the most effective amongst all. Data obtained for the LC50 from A. indica (neem) were in accordance with the bibliographic references and, on average, below the data herein obtained with M. azederach ("cinnamon"), except for Neem ethanolic extract LC50 0.017g% at 30°C in the case of fed larvae. Aiming at a more rational and preservation-based exploration of the botanical source "cinnamon" - attaining a mechanism of social inclusion for small communities under the risk of dengue fever - namely, a integrate use of the collected fruits, the pulp around (mesocarp) was used, successfully, for the culture of the red yeast Xanthophyllomyces dendrorhous (formerly, Phaffia rhodozyma), whose oxygenated carotenoid pigment (astaxanthin) is widely employed in fish farming and poultry.
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- 2004
155. Fatores higiênicos e motivacionais do trabalho do enfermeiro em enfermaria de cardiologia
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Somense, Carolina Bueno; Faculdade de Enfermagem da Universidade Estadual de Campinas-UNICAMP., Marocco Duran, Erika Christiane; Faculdade de Ciências Médicas - UNICAMP, Somense, Carolina Bueno; Faculdade de Enfermagem da Universidade Estadual de Campinas-UNICAMP., and Marocco Duran, Erika Christiane; Faculdade de Ciências Médicas - UNICAMP
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Objetivou-se identificar fatores higiênicos e motivacionais segundo a Teoria dos Dois Fatores na prática do enfermeiro, bem como a relação destes com a satisfação/insatisfação profissional. Estudo exploratório-descritivo, envolvendo nove enfermeiros da enfermaria de cardiologia de um hospital do interior paulista, no período entre agosto e setembro de 2013. Utilizou-se um questionário autoaplicável, composto por questões abertas e fechadas. Os dados foram categorizados em higiênicos e motivacionais. Os resultados mostram a satisfação dos enfermeiros com autonomia, trabalho individual e em equipe, deveres, conteúdos e responsabilidades do cargo. E insatisfação com possibilidade de crescimento, condições de trabalho, políticas e administração da instituição, supervisão e falta de apoio institucional. Fatores de satisfação e insatisfação como relacionamentos, reconhecimento e remuneração. A satisfação dos enfermeiros é determinada por múltiplos fatores, muitas vezes, controversos.
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- 2014
156. Hygiene and motivation factors of nursing work in a cardiology ward
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Somense, Carolina Bueno, primary and Duran, Erika Christiane Marocco, additional
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- 2014
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157. Litoquímica dos diques máficos de Formiga/Pedro Lessa (Brasil) e Kinga-Comba/Sembé-Ouesso (África): marcadores da tafrogênese toniana no craton São Francisco-Congo
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Chaves, Alexandre de Oliveira, primary, Menezes, Carolina Bueno, additional, and Paula, Sara Cirlene de, additional
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- 2014
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158. Empirical antimicrobial therapy for late-onset sepsis in a neonatal unit with high prevalence of coagulase-negative Staphylococcus.
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de Castro Romanelli, Roberta Maia, Márcia Anchieta, Lêni, e Silva, Ana Carolina Bueno, de Jesus, Lenize Adriana, Rosado, Viviane, and Trindade Clemente, Wanessa
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Copyright of Jornal de Pediatria is the property of Sociedade Brasileira de Pediatria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2016
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159. Micose fungoide: relato de caso tratado com radioterapia
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Marta, Gustavo Nader, primary, Gouvêa, Carolina Bueno de, additional, Ferreira, Stéfani Bertolucci Estevam, additional, Hanna, Samir Abdallah, additional, Haddad, Cecília Maria Kalil, additional, and Silva, João Luis Fernandes da, additional
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- 2011
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160. Caracterização funcional dos genes ScPSaK e ScLEA3 de cana-de-açúcar em plantas modelo transgênicas
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Carolina Bueno, Giane, primary
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161. Evolução de espécies: modelos estocásticos para seleção natural por meio de competição e mutação
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Grejo, Carolina Bueno, primary
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162. Estudo comparativo in vitro da biocompatibilidade entre nanofibras de Poli(L-ácido láctico) (PLLA) e PLDL PURAC® para uso na engenharia tecidual
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Carolina Bueno Benatti, Ana, primary
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163. Cytotoxic Limonoids from Brazilian Melia azedarach.
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Zhou, Honglei, primary, Hamazaki, Atsuko, additional, Fontana, Jose Domingos, additional, Takahashi, Hironobu, additional, Wandscheer, Carolina Bueno, additional, and Fukuyama, Yoshiyasu, additional
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- 2006
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164. Cytotoxic Limonoids from Brazilian Melia azedarach
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Zhou, Honglei, primary, Hamazaki, Atsuko, additional, Fontana, Jose Domingos, additional, Takahashi, Hironobu, additional, Wandscheer, Carolina Bueno, additional, and Fukuyama, Yoshiyasu, additional
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- 2005
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165. New Ring C-seco Limonoids from Brazilian Melia azedarach and Their Cytotoxic Activity
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Zhou, Honglei, primary, Hamazaki, Atsuko, additional, Fontana, Jose Domingos, additional, Takahashi, Hironobu, additional, Esumi, Tomoyuki, additional, Wandscheer, Carolina Bueno, additional, Tsujimoto, Hiroaki, additional, and Fukuyama, Yoshiyasu, additional
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- 2004
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166. Adiponectin: serum levels, promoter polymorphism, and associations with birth size and cardiometabolic outcome in young adults born large for gestational age.
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Ana Carolina Bueno
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PROTEINS , *SERUM , *GENETIC polymorphisms , *BIRTH size , *HEALTH outcome assessment , *GESTATIONAL age , *ADULTS , *COHORT analysis , *LONGITUDINAL method - Abstract
OBJECTIVE: To assess whether the –11391G>A polymorphism in the regulatory region of the adiponectin gene (ADIPOQ) is associated with birth size, postnatal growth, adiponectinemia, and cardiometabolic risk in adult life. DESIGN: Case–control study nested within a prospective cohort of 2063 community subjects born in 1978/1979 and followed since birth to date. METHODS: ADIPOQ –11391G>A genotype–phenotype associations were evaluated in 116 subjects born large for gestational age (LGA) and 392 gender-matched controls at birth (birth size), at 8–10 years (catch-down growth), and at 23–25 years of age (cardiometabolic profile). RESULTS: The –11391A variant allele frequency was higher in LGA subjects (P=0.04). AA genotype was associated with augmented probability of being born LGA (odds ratio=4.14; 95% confidence interval: 1.16–16.7; P=0.03). This polymorphism was associated neither with body composition nor with postnatal growth pattern. At the age of 23–25 years, the –11391A variant allele was associated with higher serum adiponectin levels (GG: 10.7±6.2 versus GA: 12.2±6.5 versus AA: 14.2±6.8 µg/ml; P<0.01). Subjects born LGA presented higher body mass index (BMI; P=0.01), abdominal circumference (P=0.04), blood pressure (P=0.04), and homeostasis assessment model for insulin resistance (P=0.01) than adequate for gestational age. Symmetry at birth did not influence these variables. The occurrence of catch-down of weight was associated with lower BMI and abdominal circumference (P<0.001) at 23–25 years. CONCLUSIONS: The –11391A ADIPOQ gene variant was associated with increased chance of being born LGA and with higher adiponectin levels in early adult life. [ABSTRACT FROM AUTHOR]
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- 2010
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167. Núcleos de Ensino da Unesp: artigos 2008
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Pinho, Sheila Zambello, Oliveira, José Brás Barreto, Pontes, Sueli Rodrigues, Almeida, Djanira Soares Oliveira E., Godoy, Kathya Maria Ayres, Rosa, Claudia Souza, Nunes, Julianus Araújo, Salvador, Sérgio Azevedo, David, Célia Maria, Vilche Peña, Angel Fidel, Frezza, Rose Mary, Martins, Cláudio Roberto, Roque, Janaina Pereira, Seidinger, Letícia Chedid, Leite, Priscila Souza, Cação, Maria Izaura, Vasconcelos, Mário Sérgio, Berto, Carlos Eduardo Oliveira, Lucchesi, Fernando Del Mando, Moreia, Kátia Cássia, Assis Junior, Luiz Roberto, Soares, Marília, Wiezzel, Andréia Cristiane Silva, Teixeira, Marcos Fernando Souza, Albuquerque, Denise Ivana, Ruocco, Ana Maria Cirino, Burgos, André Hellmeister, Madeira, Newton Goulart, Lima, Márcia Regina Canhoto, Lima, José Milton, Viotto Filho, Irineu Aliprando Tuim, Orlandi, Leonardo Ângelo, Ameduri, Talita Souza, Moreira, Tony Aparecido, Sgarbi, Fernanda, Jesus, Natasha Curuci, Pellegrini, Ana Maria, Souza Neto, Samuel, Mota, Adriana Ijano, Nascimento, Juliana Cristina Andrade Do, Bellan, Pamela, Sena, Galeno José, Toyohara, Doroti Quiomi Kanashiro, Akamatsu, Jânio Itiro, Azevedo, Tania Cristina Arantes Macedo, Zeni, José Ricardo Rezende, Silva, Marlon Da, Martino, Vânia Fátima, Prado, Camilo Oliveira, Cordeiro, Maria Angela Moraes, Rodrigues, Vivian Delmute, Balan, Ana Maria Osório Araya, Camargo, Paulo Sérgio Camillo, Silva, João Ricardo Neves Da, Lino, Alex, Santos, Thiago Pereira Dos, Campos, Luciana Maria Lunardi, Alves, Nádia, Sato, Luciane Missae, Kawamoto, Elisa Mari, Aquino, Hermes Adolfo, Batista, Sueli Aparecida Mori Halley, Fernandes, Gustavo Fantini, Santos, Marcos Paulo Segantini Dos, Polaini, Graciélli Do Carmo, Bozelli, Fernanda Cátia, Leal, Natália Ângelo, Constantino, Elizabeth Piemonte, Yazlle, Elisabeth Gelli, Ferreira, Vanessa Gimenez, Portugal, Ana Raquel, Aleixo, Karine, Santanna, Bruna Bertasso, Pavezi, Natália Prioto, Arnoni, Maria Eliza Brefere, Casarin, Helen Castro Silva, Santos, Amanda Sertori Dos, Ramalho, Andressa Souza, Oliveira, Etiene Siqueira, Ceregatto, Luciana, Brum, Esther, Hunger, Dagmar, Cardozo, Aline Steckelberg, Benites, Larissa Cerignoni, Rocha, Guaracy Tadeu, Degelo, Giovana Caramaschi, Rodrigues, Marcela Freitas, Marques, Jean Felipe, Santos, Flávia Silva Dos, Braghim, Márcio Luiz, Nunes, Rodrigo Lima, Felix, Tatiane Da Silva Pires, Miguel, José Carlos, Humberto, Letícia, Obst, Otília Nair, Lopes, José Marcos, Brito, Iara Aparecida Oliveira, Portugal, Andréia Alves, Nascimento, Verônica Maria Do, Nobre, Marcos Augusto Lima, Nobre, Silvania Lanfredi, Matthiesen, Sara Quenzer, Garuffi, Marcelo, Sibila, Camila Basso, Scariot, Pedro Paulo Menezes, Argentão, Camila, Ginciene, Guy, Gomes, Aline Oliveira, Freitas, Fernando Paulo Rosa, Iasi, Thayná, Darido, Suraya Cristina, Polezel, Karina, Impolcetto, Fernanda Moreto, Carvalho, Amarílis Oliveira, Barroso, André, Barros, André Minuzzo, Fernandes, Anoel, Rodrigues, Heitor, Terra, Janaina, Franco, Laércio, Ladeira, Maria Fernanda Telo, Lopes, Odailton Pollon, Souza Junior, Osmar Moreira, Colpas, Ricardo Ducatti, Colpas, Vanessa Rossini, Sousa Junior, João Ramos, Guimarães, Augusto Barbosa, Oliveira, Mateus Falco Soares, Salmazo, Leandra Oliveira, Silva, Gabriela Dias Da, Fiorillo, Júlio César Rodrigues Souza, Souza, Priscila Castro, Bellucci, Felipe Silva, Nogueira, Maria Do Socorro Araujo Maia, Job, Aldo Eloizo, Pires, Ana Maria, Corrêa, Roberta Guimarães, Américo, Fernanda Galvão, Cirqueira, Samirys Sara Rodrigues, Kasseboehmer, Ana Cláudia, Marques, Rosebelly Nunes, Davolos, Marian Rosaly, Faccio, Neide Barrocá, Souza Júnior, Everton Luís, Carrê, Gabriela Machado, Souza, Hellen Cristiane, Feitosa, Eloi, Lopes, Rosemara Perpetua, Nunes, João Osvaldo Rodrigues, Perusi, Maria Cristina, Dantas, Denise Jerônimo, Hatum, Isabela Saldella, Zecchini, Marcus Vinicius, Fushimi, Melina, Verges, João Vitor Gobis, Borges, Leandro Emanuel, Cordeiro, Ana Paula, Araújo, Reginaldo Tomé, Souza, Priscilla Gonçalves, Oliveira, Anderson Da Silva, Troll, Juliana, Oliveira, Felipe Augusto Kazan, Weber, Silke Anna Thereza, Nishida, Silvia Mitiko, Spazziani, Maria Lourdes, Ferreira, Maria Izabela, Andrade, Janete Ferreira, Souza, Camila Vaz, Haga, Kuniko Iwamoto, Cavalli, Leonardo Barbosa, Archanjo, Naiara Carolina Pereira, Haga, Mario Susumo, Lepre, Rita Melissa, Pirola, Nelson Antônio, Zuliani, Silvia Regina Quijadas Aro, Gomes, Ana Silvia Carvalho Ribeiro, Cunha, Luís Fernando Affonso Fernandes Da, Fürkotter, Monica, Morelatti, Maria Raquel Miotto, Machado, Andréia Teixeira, Costa, Camila Gonçalves, Grejo, Carolina Bueno, Faustino, Monica Podsclan, Faria, Filipe Pereira, Moreira, Flávia Graziela, Inforsato, Edson Do Carmo, Castro, Rosane Michelli, Bonfim, Juliana Cristina, Pereira, Elisandra Ferreti, Bigheti, Janaína Gênova, Oliveira, Cristiane Veríssimo, Gonçalves, Aline Aparecida, Silva, Amanda Pimentel Da, Santos, Danúbia Ferraz Dos, Cunha, Mara Gracia Da, Gonçalves, Cléria Custódio, Pimenta, João Paulo Oliveira, Bochorny, Jucileny, Leite, Yoshie Ussami Ferrari, Di Giorgi, Cristiano Amaral Garboggini, Augusto, Thaís Gimenez Da Silva, Oliveira, Rosemary Rodrigues, Mouro, Bruna Carolina, Castro, Natiane Bonani Lopes, Oliveira, Rodrigo Henck, Leal, Antonio Cezar, Moreira, Maria Fátima Salum, Guimarães, Eliana Maria Alves, Kanevieskir, Thiciany, Giometti, Analúcia Bueno Dos Reis, Queiroz, Letícia Morais, Guimarães, Rejane Teodoro, Silva, Kamila Lima Da, Bertani, Iris Fenner, Ferraz, Cláudio Benito Oliveira, Alonso Junior, José Lazaro, Shiota, Rafaela Tiemi, Dauer, Paaron Guenka, Monteiro, Carolina Domingos Barbosa, Souza, Glauco Costa, Rocha, Elizabete Sanches, Maso, Tchella Fernandes, Mateo, Luiza Rodrigues, Vanini, Joice, Silva, Irma Dutra Gomes Oliveira E., Barbosa, Maria Valéria, Silva, Vandeí Pinto Da, Oliveira, Amanda Carvalho Maia, Pimenta, Juliana Carla Fleiria, Teixeira, Paulo Eduardo, Mussi, Eduardo Pereira, Nakatany, Tony Shigueki, Lima, Maria Fernanda Rodrigues, Capodeferro, Breno Cacossi, Carvalho, Samara Dos Santos, Maciel, Aline, Mercúrio, Bruno Michel Da Costa, Santos, Willians Jesus Dos, Sousa, Leonardo Da Silva Bezerra, Mendonça, Sueli Guadelupe Lima, Dal Ri, Neusa Maria, Lamas, Rita Cássia Pavani, Penteado, Miriam Godoy, Cattai, Maria Dirlene Da Silva, Geraldo, Willian Bala, Inforsato, Ana Paula, Reis, Maria Augusta Machado, Monteiro, Maurício, Oliveira, Leila, Pinto, Renan Mercuri, Fanti, Ermínia Lourdes Campello, Papandré, Odete Fátima Rossi, Pianoschi, Thaisa Alves, Marques, Emília Mendonça Rosa, Boza, Thiago Augusto Dos Santos, Mensato, Nayara Maria, Nabeiro, Marli, Zonta, Ana Flora Zanirato, Prado Júnior, Milton Viera Do, Orlando, Patrícia D’azeredo, Modenese, Juliana Cristina, Syllos, Mariana Vidal, Oliveira, Fátima Inês Wolf, Machado, Paulo Henrique Rocha, Schlünzen, Elisa Tomoe Moriya, Santos, Danielle Aparecida Do Nascimento Dos, Omodei, Juliana Dalbem, Barbosa, Cristiane Aparecida Scolari, Deliberato, Débora, Ponsoni, Adriana, Manzini, Mariana Gurian, Martins, Sandra Eli Sartoreto Oliveira, Giroto, Claudia Regina Mosca, Kumada, Kate Manhy, Lucas, Maria Isabel T., Coutinho, Kátia Regina Roseiro, Leite, Lúcia Pereira, Moraes, Ana Paula Pacheco, Velden, Helena Ferreira Vander, Franceschini, Lilia Guerrero, Malheiro, Cicera Aparecida Lima, Valeriano, Natália, Ferrari, Natalia, Bofi, Tânia Cristina, Carvalho, Augusto Cesinando, Pereira, João Domingos Augusto Dos Santos, Silva, Ana Rita Correa Da, Kawaguchi, Tathy Sayuri, Donato, Bruna Facion, Oliveira, Cristiane Moço Canhetti, Gonçalves, Marília Piazzi Seno, Salvini, Sandra Salenave, Capellini, Simone Aparecida, Chagas, Eliane Ferrari, Mastroianni, Edelvira Castro Quintanilha, Brancatti, Paulo Roberto, Câmara, Letícia Machado, Silva, Murilo Cesar Santos Da, Campos, Ana Carla Lima, Pereira, Priscila, Bueno, Fagner Leandro, Almeida, Vera Lia Marcondes Criscuolo, Barbosa, Luciane Maria Molina, Santos, Maria Fátima Castro Lacaz, Saad, Ricardo Wurthmann, Matheus, Selma Maria Michelin, Maria Dalva Cesario, Centrone, Cristiane Campos, Carvalho, Samara Camaçarí, Galvão Júnior, Heraldo Márcio, Firakovsk, Daniel, Nascimento, Laís Do, Rodrigues, Sabrina Dos Santos, Tosi, Pedro Geraldo, Girotto, Cyntia Graziella Guizelim Simões, Fekete, Dominique, Brandão, Evinária, Camilo, Telma Cristina, Mendonça, Onaide Schwartz Correa, Souza, Renata Junqueira, Alves, Aletéia Eleutério, Jorge, Márcia Adriana, Alves, Marli Mizuta, Arena, Dagoberto Buim, Santos, Sônia Oliveira, Delfino, Ivone Da Silva, Spagnol, Beatriz Aparecida, Revoredo, Mariana, Oliveira, Gislaine Ciumara, Abreu, Melina Altavini, Bonifácio, Alyne Gonzalez, Granville, Maria Antonia, Nascimento, Bárbara Nicácio Do, Feitosa, Rosane Gazolla Alves, Cruz, Maria Lourdes Otero Brabo, Cáceres, Isabel Cristina Briones, Nappi, Gustavo Fernando, Silva, Danilo Galhardo, Souza, Fábio Marques, Roque, Araguaia Solange Souza, and Sabino, Marilei Amadeu
168. Inhibition of the Tcf/beta-catenin complex increases apoptosis and impairs adrenocortical tumor cell proliferation and adrenal steroidogenesis
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Sonir Roberto Rauber Antonini, Rafael Haikal Abduch, Débora Cristiane Gomes, Leticia Ferro Leal, Ana Carolina Bueno, and Margaret de Castro
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steroidogenesis ,medicine.medical_specialty ,Beta-catenin ,Blotting, Western ,Radioimmunoassay ,Fluorescent Antibody Technique ,Antineoplastic Agents ,Biology ,Real-Time Polymerase Chain Reaction ,Andrology ,Androstenedione secretion ,chemistry.chemical_compound ,Western blot ,Corticosterone ,Cell Line, Tumor ,Internal medicine ,adrenocortical cancer ,T Cell Transcription Factor 1 ,medicine ,Humans ,Viability assay ,Wnt Signaling Pathway ,beta Catenin ,Cell Proliferation ,medicine.diagnostic_test ,Cell growth ,apoptosis ,Wnt signaling pathway ,beta-catenin ,targeted therapy ,Flow Cytometry ,Immunohistochemistry ,Adrenal Cortex Neoplasms ,PROLIFERAÇÃO CELULAR ,Endocrinology ,Oncology ,chemistry ,Apoptosis ,biology.protein ,Research Paper - Abstract
// Leticia F. Leal 1 , Ana Carolina Bueno 1 , Debora C. Gomes 1, 2 , Rafael Abduch 1 , Margaret de Castro 3 , Sonir R. Antonini 1 1 Department of Pediatrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil 2 Department of Pediatrics, School of Medicine, Federal University of Uberlandia, Uberlândia, Minas Gerais, Brazil 3 Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil Correspondence to: Sonir R. Antonini, e-mail: antonini@fmrp.usp.br Keywords: adrenocortical cancer, beta-catenin, steroidogenesis, apoptosis, targeted therapy Received: April 13, 2015 Accepted: September 05, 2015 Published: October 16, 2015 ABSTRACT Background: To date, there is no effective therapy for patients with advanced/metastatic adrenocortical cancer (ACC). The activation of the Wnt/beta-catenin signaling is frequent in ACC and this pathway is a promising therapeutic target. Aim: To investigate the effects of the inhibition of the Wnt/beta-catenin in ACC cells. Methods: Adrenal (NCI-H295 and Y1) and non-adrenal (HeLa) cell lines were treated with PNU-74654 (5–200 μM) for 24–96 h to assess cell viability (MTS-based assay), apoptosis (Annexin V), expression/localization of beta-catenin (qPCR, immunofluorescence, immunocytochemistry and western blot), expression of beta-catenin target genes (qPCR and western blot), and adrenal steroidogenesis (radioimmunoassay, qPCR and western blot). Results: In NCI-H295 cells, PNU-74654 significantly decreased cell proliferation 96 h after treatment, increased early and late apoptosis, decreased nuclear beta-catenin accumulation, impaired CTNNB1 /beta-catenin expression and increased beta-catenin target genes 48 h after treatment. No effects were observed on HeLa cells. In NCI-H295 cells, PNU-74654 decreased cortisol, testosterone and androstenedione secretion 24 and 48 h after treatment. Additionally, in NCI-H295 cells, PNU-74654 decreased SF1 and CYP21A2 mRNA expression as well as the protein levels of STAR and aldosterone synthase 48 h after treatment. In Y1 cells, PNU-74654 impaired corticosterone secretion 24 h after treatment but did not decrease cell viability. Conclusions: Blocking the Tcf/beta-catenin complex inhibits the Wnt/beta-catenin signaling in adrenocortical tumor cells triggering increased apoptosis, decreased cell viability and impairment of adrenal steroidogenesis. These promising findings pave the way for further experiments inhibiting the Wnt/beta-catenin pathway in pre-clinical models of ACC. The inhibition of this pathway may become a promising adjuvant therapy for patients with ACC.
169. Assessing social and distributional impacts of transportation policies for optimizing sustainability
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Paola Carolina Bueno Cadena
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11. Sustainability ,8. Economic growth ,12. Responsible consumption
170. EMERGENCY SERVICES IN THE CONTEXT OF THE COVID-19 PANDEMIC: FAMILY EXPERIENCES OF CHILDREN WITH AUTISM
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Aline Rigo Estevão, Verônica de Azevedo Mazza, Victoria Beatriz Trevisan Nobrega Martins Ruthes, Francelaine Lopes Roberto, Ana Carolina Bueno Guisso, and Mayra Eduarda Borges Moreno
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Family nursing ,Autism spectrum disorder ,Coronavirus infections ,Urgences ,Child. ,Nursing ,RT1-120 ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Objective: Understanding the experiences of families of children with autism spectrum disorder in the context of the Covid-19 pandemic in emergency and urgent care services. Methods: This is a multiple case study with a qualitative, descriptive approach. The collection of evidence took place during the year 2022, in an online manner, with 13 families of children with autism, through semi-structured interviews in a virtual environment. Results: The evidence resulted in two thematic categories: “Pandemic” and “Experiencing urgency and emergency”. The families expressed that the pandemic had a negative impact on their lives and the use of urgent services was also experienced negatively, affecting the child with the disorder, as well as their family, on different levels and aspects. Final considerations: Families are capable of promoting actions that directly refer to the aspect of the resilience process that their members were able to establish during this period.
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- 2024
171. SERVIÇOS DE URGÊNCIA NO CONTEXTO DA PANDEMIA DE COVID-19: VIVÊNCIA DAS FAMÍLIAS DE CRIANÇAS COM AUTISMO
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Aline Rigo Estevão, Verônica de Azevedo Mazza, Victoria Beatriz Trevisan Nobrega Martins Ruthes, Francelaine Lopes Roberto, Ana Carolina Bueno Guisso, and Mayra Eduarda Borges Moreno
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Enfermagem familiar ,Transtorno do espectro autista ,Infecções por coronavírus ,Emergências ,Criança. ,Nursing ,RT1-120 ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Objetivo: Compreender a vivência das famílias de crianças com transtorno do espectro autista, no contexto da pandemia de Covid-19, em serviços de urgência e emergência. Métodos: Trata-se de um estudo de casos múltiplos com abordagem qualitativa, de caráter descritivo. A coleta de evidências ocorreu durante o ano de 2022, de forma online, com 13 famílias de crianças com autismo, por meio de entrevista semiestruturada em ambiente virtual. Resultados: As evidências resultaram em duas categorias temáticas: “Pandemia” e “Vivência da urgência e emergência”. As famílias externaram que a pandemia repercutiu negativamente em suas vidas e a utilização dos serviços de urgência e emergência também foi experienciada de forma negativa, afetando a criança com o transtorno, bem como sua família, em diferentes níveis e aspectos. Considerações finais: As famílias são capazes de promover ações que remetem diretamente ao aspecto do processo de resiliência que seus membros conseguiram estabelecer nesse período.
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- 2024
172. SERVICIOS DE URGENCIA EN EL CONTEXTO DE LA PANDEMIA DE COVID-19: VIVENCIA DE LAS FAMILIAS DE NIÑOS CON AUTISMO
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Aline Rigo Estevão, Verônica de Azevedo Mazza, Victoria Beatriz Trevisan Nobrega Martins Ruthes, Francelaine Lopes Roberto, Ana Carolina Bueno Guisso, and Mayra Eduarda Borges Moreno
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Enfermería familiar ,Trastorno del espectro autista ,Infecciones por coronavirus ,Emergencias ,Niño. ,Nursing ,RT1-120 ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Objetivo: Comprender la vivencia de las familias de niños con trastorno del espectro autista, en el contexto de la pandemia de Covid-19, en servicios de urgencia y emergencia. Métodos: Se trata de un estudio de casos múltiples con enfoque cualitativo, de carácter descriptivo. La recolección de evidencias ocurrió durante el año 2022, de forma online, con 13 familias de niños con autismo, a través de una entrevista semiestructurada en un entorno virtual. Resultados: Las evidencias resultaron en dos categorías temáticas: “Pandemia” y “Vivencia de la urgencia y emergencia”. Las familias expresaron que la pandemia repercutió negativamente en sus vidas y la utilización de los servicios de urgencia y emergencia también fue experimentada de forma negativa, afectando al niño con el trastorno, así como a su familia, en diferentes niveles y aspectos. Consideraciones finales: Las familias son capaces de promover acciones que remiten directamente al aspecto del proceso de resiliencia que sus miembros lograron establecer en ese período.
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- 2024
173. Metástase Vaginal como Manifestação Inicial de Carcinoma de Células Renais
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Marília Buenos Aires Cabral Tavares, Amanda Correia da Paz, Adriano Leite Camilo da Silva, Rodrigo Beserra Sousa, João Rubens Agostinho Rolim, Carolina Buenos Aires Cabral Tavares, and Sabas Carlos Vieira
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Metástase vaginal ,Carcinoma de células renais ,Adenocarcinoma de células claras ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
A ocorrência de metástases de carcinoma de células renais para a vagina é rara. Ocorre principalmente em mulheres na pós-menopausa e o principal fator prognóstico é se essa metástase apresenta-se ou não isolada. Poucos casos foram relatados na literatura mundial e a maioria destes envolve metástases originadas no rim esquerdo. Os autores apresentam um caso de metástase vaginal de carcinoma de células renais em uma paciente de 53 anos de idade cuja apresentação clínica inicial foi de uma massa pediculada com bordas irregulares na parede posterior da vagina. Realizou-se a retirada cirúrgica da lesão que revelou tratar-se de adenocarcinoma de células claras. A ultrasonografia abdominal evidenciou presença de massa incidental no rim esquerdo e foi realizada a nefrectomia deste rim. O estudo imunoistoquímico realizado demonstrou tratar de lesão neoplásica primária do rim com metástase para a vagina. A paciente, então, recebeu radioterapia adjuvante na vagina e na pelve. Após oito meses do início do tratamento, realizou-se imunoterapia com interferon 2 devido ao aparecimento de metástase também para o fígado. A paciente encontra-se viva 17 meses após a cirurgia.
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- 2008
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174. Semiochemical delivery systems based on natural polymers to attract sand flies (Diptera: Psychodidae)
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Ana Carolina Bueno, Vicente Estevam Machado, Flávia Benini da Rocha Silva, Fernanda Isadora Boni, Beatriz Stringhetti Ferreira Cury, Maria Palmira Daflon Gremião, and Mara Cristina Pinto
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Attractiveness ,1-hexanol ,Kairomones ,Lutzomyia longipalpis ,Release systems ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background The successful use of semiochemicals to attract insects to traps is based on research on the most suitable compounds and their release profiles over time. Based on the group's promising results, matrices with a more adequate release profile and more eco-friendly properties for the release of 1-hexanol were developed. To use a more suitable prototype in the field, the most promising systems were added to a capsule and evaluated in a wind tunnel. Behavioral experiments were performed using the sand fly species, Lutzomyia longipalpis, to evaluate the efficacy of the proposed system. Methods Different delivery systems were developed by varying the polymer (gellan gum and pectin) ratio, crosslinker (aluminum chloride) concentration, and glutaraldehyde removal.The delivery systems were loaded with 1-hexanol, and their release profiles were evaluated using gravimetric analysis under ambient and high-humidity conditions. When the matrix system was placed inside a plastic container, modulations in the active release profile were observed and the system could be reused. Actid attraction behaviors of the sand fly species, Lu. longipalpis, were evaluated in a wind tunnel when exposed to 1-hexanol-loaded release systems at different times. Results Among the four formulations evaluated, System 2 (gellan gum and pectin in a 1:1 ratio with 5% aluminum chloride) exhibited the most promising release profile, with greater uniformity and longer compound release time. The maximum 1-hexanol release uniformity was achieved over a longer time, mainly every 24 h, under both ambient and high-humidity conditions. System 2 can be reused at least once with the same structure. The wind tunnel trials exhibited efficient activation and attraction of Lu. longipalpis to 1-hexanol after 24, 48, and 72 h in System 2 placed inside the capsules. Conclusions The polymeric matrix supplemented with 1-hexanol and introduced in plastic capsules showed promising results in attracting sand flies. This system can be used as a solution for other attractive compounds as well as in other applications where their release needs to be controlled or prolonged. Graphical Abstract
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- 2023
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175. The Sugarcane ScPetC Gene Improves Water-Deficit and Oxidative Stress Tolerance in Transgenic Tobacco Plants
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Carolina Ribeiro Liberato Silva, César Bueno de Souza, Claudiana Moura dos Santos, Bruno Spinassé Floreste, Nicholas Camargo Zani, Andrea Akemi Hoshino-Bezerra, Giane Carolina Bueno, Eder Bedani Ruiz Chagas, and Marcelo Menossi
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sugarcane ,biotechnology ,transgenic ,drought tolerance ,oxidative stress ,Agriculture - Abstract
Water deficit is the main limiting factor constraining sugarcane productivity, and its impact is expected to increase due to climate changes. During prolonged drought periods, most plants become extremely vulnerable to ROS accumulation, which can severely damage their photosynthetic apparatus. The PetC gene, encoding a Rieske FeS protein (ISP), has been shown to regulate the electron transport chain and protect photosystems (PSs) under drought conditions in some plant species. In sugarcane, transcriptome analysis revealed that ScPetC is repressed during drought stress in the field. In this study, we have overexpressed ScPetC in tobacco plants and evaluated its role in water-deficit tolerance. Our results indicate that the ScPetC protein structure is conserved when compared to other species. ScPetC overexpression reduced the negative impact of water deficit on plant development. This effect was associated with a positive impact on ScPetC quantum efficiency and the electron transport rate of PSII, the photosynthetic rate, and water use efficiency. The total chlorophyll content under water deficit was higher in plants overexpressing ScPetC, and this was correlated with less chlorophyll degradation from oxidative damage. Together, these results demonstrate that ScPetC confers tolerance to water deficit and oxidative stresses, making it a candidate gene for crop improvement.
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- 2024
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176. Artificial intelligence-based pulmonary embolism classification: Development and validation using real-world data
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Luan Oliveira da Silva, Maria Carolina Bueno da Silva, Guilherme Alberto Sousa Ribeiro, Thiago Fellipe Ortiz de Camargo, Paulo Victor dos Santos, Giovanna de Souza Mendes, Joselisa Peres Queiroz de Paiva, Anderson da Silva Soares, Márcio Rodrigues da Cunha Reis, Rafael Maffei Loureiro, and Wesley Pacheco Calixto
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Medicine ,Science - Published
- 2024
177. Prevalence of prognostic factors for cancer of the uterine cervix after radical hysterectomy
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Marília Buenos Aires Cabral Tavares, Rodrigo Beserra Sousa, Thiago Oliveira e Silva, Larissa Almeida Moreira, Loyana Teresa Teófilo Lima Silva, Carolina Buenos Aires Cabral Tavares, and Sabas Carlos Vieira
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Survival analysis ,Cervix uteri ,Uterine neoplasms ,Hysterectomy ,Gynecologic surgical procedures ,Medicine - Abstract
CONTEXT AND OBJECTIVE: Cancer of the uterine cervix is still very common in Brazil. It is important to evaluate factors that influence its prognosis. The aim here was to analyze the prevalence of prognostic anatomoclinical factors among patients with carcinoma of the uterine cervix undergoing radical hysterectomy. DESIGN AND SETTING: Cross-sectional study on 301 patients with invasive carcinoma of the uterine cervix who underwent Level III Piver-Rutledge hysterectomy surgery at São Marcos Hospital. METHODS: The following variables were analyzed: age, histological type, degree of differentiation, invasion of lymphatic, vascular and perineural space, lymph node metastasis, distance to nearest margin, tumor invasion depth, vaginal cuff size, largest diameter of the tumor, presence of necrosis and surgical margin involvement. Descriptive statistics, multiple regression analysis, Kaplan-Meier survival curves and the log-rank test were performed. A significance level of 5% was used. RESULTS: The mean age was 48.27 years. The following were not important for the prognosis, in relation to survival analysis: degree of differentiation and tumor invasion depth; presence of lymphatic, blood and perineural invasions; distance to nearest margin; and vaginal cuff size. Tumor size (P < 0.036), presence of lymph node metastasis (P < 0.0004), necrosis (P < 0.05) and surgical margin involvement (P < 0.0015) presented impacts on survival. The overall survival with 98 months of follow-up was 88.35%. CONCLUSION: The most prevalent prognostic factors were the presence of lymph node metastasis, tumor size and surgical margin involvement.
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178. Differential diagnoses of acute ground-glass opacity in chest computed tomography: pictorial essay
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Marina Justi Rosa de Matos, Marcela Emer Egypto Rosa, Vanessa Mizubuti Brito, Lucas Tadashi Wada Amaral, Gabriel Laverdi Beraldo, Eduardo Kaiser Ururahy Nunes Fonseca, Rodrigo Caruso Chate, Rodrigo Bastos Duarte Passos, Murilo Marques Almeida Silva, Patrícia Yokoo, Roberto Sasdelli Neto, Gustavo Borges da Silva Teles, Marina Carolina Bueno da Silva, and Gilberto Szarf
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Coronavirus infections ,COVID-19 ,Pandemics ,SARS-CoV-2 ,Thorax/diagnostic imaging ,Tomography, X-ray computed ,Diagnosis, differential ,Medicine - Abstract
ABSTRACT Ground-glass opacity is a very frequent and unspecified finding in chest computed tomography. Therefore, it admits a wide range of differential diagnoses in the acute context, from viral pneumonias such as influenza virus, coronavirus disease 2019 and cytomegalovirus and even non-infectious lesions, such as vaping, pulmonary infarction, alveolar hemorrhage and pulmonary edema. For this diagnostic differentiation, ground glass must be correlated with other findings in imaging tests, with laboratory tests and with the patients’ clinical condition. In the context of a pandemic, it is extremely important to remember the other pathologies with similar findings to coronavirus disease 2019 in the imaging exams.
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- 2021
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179. Differential diagnoses of acute ground-glass opacity in chest computed tomography: pictorial essay.
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Justi Rosa de Matos, Marina, Egypto Rosa, Marcela Emer, Mizubuti Brito, Vanessa, Wada Amaral, Lucas Tadashi, Laverdi Beraldo, Gabriel, Ururahy Nunes Fonseca, Eduardo Kaiser, Caruso Chate, Rodrigo, Duarte Passos, Rodrigo Bastos, Almeida Silva, Murilo Marques, Yokoo, Patrícia, Sasdelli Neto, Roberto, Borges da Silva Teles, Gustavo, Carolina Bueno da Silva, Marina, and Szarf, Gilberto
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DIFFERENTIAL diagnosis , *COMPUTED tomography , *PNEUMONIA diagnosis , *PULMONARY edema , *CYTOMEGALOVIRUS diseases , *PULMONARY infarction - Abstract
Ground-glass opacity is a very frequent and unspecified finding in chest computed tomography. Therefore, it admits a wide range of differential diagnoses in the acute context, from viral pneumonias such as influenza virus, coronavirus disease 2019 and cytomegalovirus and even non-infectious lesions, such as vaping, pulmonary infarction, alveolar hemorrhage and pulmonary edema. For this diagnostic differentiation, ground glass must be correlated with other findings in imaging tests, with laboratory tests and with the patients’ clinical condition. In the context of a pandemic, it is extremely important to remember the other pathologies with similar findings to coronavirus disease 2019 in the imaging exams. [ABSTRACT FROM AUTHOR]
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- 2021
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180. Homocysteine, folate, hs-C-reactive protein, tumor necrosis factor alpha and inflammatory proteins: are these biomarkers related to nutritional status and cardiovascular risk in childhood-onset systemic lupus erythematosus?
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Roberta Garcia Salomão, Luciana Martins de Carvalho, Clarice Izumi, Érika Silva Czernisz, José César Rosa, Sonir Roberto Rauber Antonini, Ana Carolina Bueno, Maria Olímpia Ribeiro do Vale Almada, Carolina de Almeida Coelho-Landell, Alceu Afonso Jordão, Virgínia Paes Leme Ferriani, and Jacqueline Pontes Monteiro
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Proteomic ,Nutritional status ,Homocysteine ,Folic acid ,Tumor necrosis factor alpha ,Childhood onset systemic lupus Erythematosus ,Pediatrics ,RJ1-570 ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Abstract Background Childhood-onset systemic lupus erythematosus (c-SLE) is a chronic autoimmune disease which increases cardiovascular risk factors (CRF) such as elevated homocysteine, TNF-α, and hs-C reactive protein. Methods We evaluated BMI, waist circumference (WC), 24-h recalls, SLEDAI-2 K, SLICC/ACR-DI, serum levels of homocysteine, folate, TNF-α, hs-C reactive protein, lipid profile, proteomic data, and duration of corticosteroid therapy in 19 c-SLE and 38 healthy volunteers. Physiological and anthropometric variables of c-SLE and healthy controls were compared by ANCOVA. k-cluster was used to separate c-SLE into two different groups with the best and the worst metabolic profile according to previous analysis showing some metabolites that were statistically different from controls, such as homocysteine, TNF-α, hs-CRP and folate levels. These two clusters were again compared with the control group regarding nutritional parameters, lipid profile and also proteomic data. Results Individuals with c-SLE presented higher BMI, WC, homocysteine, triglycerides, TNF-α, hs-CRP and lower folate levels when compared to controls. We found 10 proteins whose relative abundances were statistically different between control group and lupus clusters with the best (LCBMP) and the worst metabolic profile (LCWMP). A significant positive correlation was found between TNF-α and triglycerides and between hs-CRP and duration of corticosteroid therapy. Conclusion Cardiovascular disease (CVD) risk parameters were worse in c-SLE. A less protective CVD proteomic profile was found in LCWMP.
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- 2018
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181. Empirical antimicrobial therapy for late-onset sepsis in a neonatal unit with high prevalence of coagulase-negative Staphylococcus
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Roberta Maia de Castro Romanelli, Lêni Márcia Anchieta, Ana Carolina Bueno e Silva, Lenize Adriana de Jesus, Viviane Rosado, and Wanessa Trindade Clemente
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Pediatrics ,RJ1-570 - Abstract
Objective: The aim of this study was to compare two different empiric treatments for late-onset neonatal sepsis, vancomycin and oxacillin, in a neonatal intensive care unit with a high prevalence of coagulase-negative Staphylococcus. Methods: A cross-sectional study was conducted in an neonatal intensive care unit from 2011 to 2014. Data from the medical records of at-risk newborns were collected daily. Infections were defined according to the National Health Surveillance Agency criteria. Data analysis was performed using an internal program. Results: There was a significant reduction in the number of Staphylococcus aureus infections (p = 0.008), without endocarditis, meningitis, or lower respiratory tract infection, as well as a reduction in the frequency of deaths related to S. aureus infection. There were no significant changes in the incidence of Gram-negative bacterial or fungal infections. An increase in coagulase-negative Staphylococcus infections was observed (p = 0.022). However, there was no measured increase in related morbidity and mortality. There was a reduction in the median number of days of treatment with oxacillin from 11.5 to 6 days (p
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- 2016
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182. The role of YAP1 oncogene in tumorigenesis and metastasis process and the effect of its inhibitor verteporfin in pediatrics adrenocortical tumors
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Candy Christie Bellido More, Sonir Roberto Rauber Antonini, Ana Carolina Bueno de Queiroz Arruda, Daniel Alves Bulzico, Fabio Luiz Fernandes Rósa, and Elvis Terci Valera
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CONTEXTO: Os tumores adrenocorticais (TACs) são raros e agressivos. YAP1, um efetor da via Hippo, é superexpresso em outros tipos de câncer. Recentemente, foi demonstrado que a superexpressão de YAP1 se associa com pior prognóstico de pacientes pediátricos com TAC. OBJETIVOS: Avaliar o papel do oncogene YAP1 e o efeito antitumoral de seu inibidor, a verteporfina, na tumorigênese adrenocortical. MÉTODOS: Ex vivo e in silico, a expressão do gene YAP1 em TACs foi analisada a partir de dados públicos disponibilizados nas bases de dados TCGA e GEO, bem como de dados resultantes do RNA-seq de amostras de TACs pediátricos da coorte FMRP/USP-Boldrini. Adicionalmente, o perfil de metilação do gene YAP1 foi analisado a partir dos dados de amostras de pacientes pediátricos da coorte FMRP/USP-Boldrini e de dados públicos no GEO. In vitro, o papel do YAP1 sobre a progressão de TACs foi examinado por meio de ensaios de viabilidade celular, ciclo celular, formação de colônias em ágar mole e invasão celular. A influência de YAP1 sobre a expressão proteica e a atividade transcricional da beta-catenina foi examinada por meio de Western blot, imunofluorescência e qPCR em tempo real. In vivo, foi avaliado o efeito da inibição farmacológica do YAP1 usando verteporfina sobre o crescimento tumoral em modelo xenográfico murino de TACs. RESULTADOS: Houve associação significativa entre a alta expressão de YAP1 com a menor sobrevida de pacientes pediátricos das coortes GEO e FMRP/USP-Boldrini e de pacientes adultos da coorte TCGA. Ainda, observou-se duas assinaturas de metilação de YAP1 nas coortes pediátricas avaliadas, sendo que houve associação entre estas assinaturas e o prognóstico dos pacientes da FMRP/USP-Boldrini. Juntos, estes resultados confirmam a importância do gene YAP1 neste processo. In vitro, a inibição do YAP1 reduziu a viabilidade celular através do bloqueio da progressão do ciclo celular na fase G0-G1, inibiu a expressão dos marcadores do processo de transição epitélio-mesênquima, assim como o crescimento independente de ancoragem e a invasão celular. Adicionalmente, o YAP1 modulou os níveis proteicos e a atividade transcricional da beta-catenina e, ao mesmo tempo, a beta-catenina mostrou-se mediadora parcial do efeito do YAP1 nas células adrenocorticais. Finalmente, in vivo, a verteporfina inibiu o crescimento tumoral por meio da inibição da proliferação tumoral, demonstrada pela imunorreatividade reduzida de Ki67 nos xenoenxertos de TAC nos animais tratados. CONCLUSÕES: Nossos achados reforçam o papel do YAP1 como um novo marcador prognóstico para pacientes com TAC, bem como demonstram a contribuição de sua desregulação no processo de tumorigênese adrenocortical. Este estudo evidencia a importância da interação entre as vias Hippo/YAP1 e Wnt/beta-catenina em células adrenocorticais. A demonstração do efeito antitumoral da verteporfina sugere que YAP1 pode ser um novo alvo para o tratamento de pacientes com TAC. Background: Adrenocortical tumors (ACT) are rare and aggressive. YAP1, a HIPPO pathway effector, is overexpressed in other types of tumors. Recently, it was shown that YAP1 overexpression is associated with worse prognosis in pediatric patients with ACT. Objectives: To evaluate the role of the YAP1 oncogene and the antitumor effect of its inhibitor, verteporfin, in adrenocortical tumorigenesis. Methods: Ex vivo and in silico, the YAP1 expression in ACT was analyzed from publicly available data from TCGA and GEO databases and the RNA-seq data of pediatric patients\' samples from FMRP/USP-Boldrini cohort. In addition, YAP1 methylation profile was analyzed from a methylation array from pediatric patients\' samples from FMRP/USP-Boldrini cohort and public data from GEO. In vitro, the role of YAP1 on ACT progression was examined using cell viability, cell cycle, soft-agar colony formation, and cell invasion assays. YAP1\'s influence on beta-catenin protein levels and transcription activity was examined by immunoblotting, immunofluorescence and real time-qPCR. In vivo, the effect of the pharmacological inhibition of YAP1 by verteporfin on tumor growth was evaluated in a mouse xenograft model of ACT. Results: We confirmed the association between YAP1 mRNA overexpression with impaired survival of pediatric patients from GEO and FMRP/USP-Boldrini cohort and adult patients from TCGA. Moreover, we identified two YAP1 methylation signatures in both pediatric cohorts evaluated. These methylation signatures were also associated with the survival of pediatric patients from the FMRP/USP-Boldrini cohort. Together, these results support the prognostic marker value of YAP1 in ACTs. In vitro, the inhibition of YAP1 reduced adrenocortical cell viability through cell cycle arrestment in G0-G1 phase, inhibited the epithelial mesenchymal transition process markers\' expression, as well as anchorage-independent growth and cell invasion. In addition, YAP1 was shown to modulate beta-catenin protein levels and transcription activity and, at the same time, beta-catenin was shown to partially mediate the effect of YAP1 on adrenocortical cells. Finally, in vivo, verteporfin inhibited the tumor growth by inhibiting tumor cell proliferation, as shown by reduced Ki67 immunoreactivity in the xenografts from treated mice. Conclusions: Our findings reinforce the role of YAP1 as a novel prognostic marker for patients with ACT, as well as demonstrate the mechanisms by which YAP1 deregulation contributes to adrenocortical tumorigenesis. This study also evidences the importance of the crosstalk between Hippo/YAP1 and Wnt/beta-catenin pathways in adrenocortical cells, which acknowledges YAP1 as a new target for the treatment of patients with ACT.
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- 2022
183. Setting the weights of sustainability criteria for the appraisal of transport projects
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Paola Carolina Bueno Cadena and José Manuel Vassallo Magro
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sustainable transport ,multi-criteria analysis ,decision making ,criteria weighting ,pairwise comparisons ,REMBRANDT ,Transportation engineering ,TA1001-1280 - Abstract
Although the Multi-Criteria Decision Analysis (MCDA) has made progress towards appraising and measuring the performance of smart and sustainable transport projects, it still has important issues that need to be addressed such as the problem associated with incomparable quantities, the inherent subjective qualitative assessment, the complexity of identifying impacts to be included and its measurement method, and the corresponding weights. The issue of trading-off different sustainability criteria is the main unresolved matter. This problem may lead to lack of accuracy in the decision making process. This paper presents a new methodology to set the weights of the sustainability criteria used in the MCDA in order to reduce subjectivity and imprecision. We suggest eliciting criteria weights based on both expert preferences and the importance that the sustainability criteria have in the geographical and social context where the project is developed. This novel methodology is applied to a real case study to quantify sustainable practices associated with the design and construction of a new roadway in Spain. The outcome demonstrates that the approach to the weighting problem has significance and general application in a multi-criteria evaluation process.
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- 2015
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184. An introduction to birth and assassination process
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Adriano Gonçalves Lima, Fabio Prates Machado, Alejandro Roldan Correa, and Carolina Bueno Grejo
- Abstract
Esse texto tem como foco passar pelos resultados apresentados por Aldous e Krebs sobre o Processo de Nascimento e Assassinato, dando atenção nas passagens omitidas por esses autores. Junto a isso, por motivos didáticos, passaremos por alguns resultados importantes do Processo de Ramificação com o intuito de trazer intuição para os resultados postos para o Processo de Nascimento e Assassinato. Com isso posto, apresentaremos o principal resultado a respeito da criticidade do Processo de Nascimento e Assassinato, e faremos então uma demonstração para esse resultado. Seguindo com o texto, iremos então passar a tratar de 4 casos particulas desse resultado, para quando temos a distribuição de assassinato fixadas. This text focuses on going through the results presented by Aldous and Krebs about the Birth and Assassination Process, to the passages omitted by these authors. In addition, for didactic reasons, we will go through some important results of the Branching Process in order to bring intuition to the results set for the Birth and Assassination Process. With that said, we will present the main result regarding the criticality of the Birth and Assassination Process, and then we will make a demonstration for this result. Continuing with the text, we will then go on to deal with 4 particular cases of this result, for when we have the killing distribution fixed.
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- 2021
185. Results for the model of the Maki-Thompson rumor model in trees
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Adalto Speroto, Pablo Martin Rodriguez, Valdivino Vargas Junior, Alejandro Roldan Correa, Carolina Bueno Grejo, Élcio Lebensztayn, Erika Alejandra Rada Mora, Rodríguez, Pablo Martín, and Vargas Júnior, Valdivino
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Árvores aleatórias ,Transição de fase ,Homogeneous trees ,Modelo de Maki-Thompson ,Árvores homogêneas ,Randon trees ,Maki-Thompson model ,Phase transition ,PROBABILIDADE E ESTATISTICA [CIENCIAS EXATAS E DA TERRA] - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) In this work, we study the Maki-Thompson rumor model on infinite homogeneous trees which is formulated as a continuous-times Markov chain. This model can be defined as a system of interacting particles representing the spread of a rumor by individuals in a homogeneous tree. We assume that each individual can belong to one of three classes in a population represented by: ignorants, spreaders and stifles. A spreader tells the rumor to any of its ignorant (nearest) neighbors at a constant rate. On the other hand, also at the same rate, a spreader becomes a stifler after interact with other spreader (nearest neighbors) or a stifler. Still in this work, we extend our analysis to two generalizations, in the first one we assume that each propagator stops spreading the rumor right after being involved in a certain number of failed attempts and in the second we extend the Maki-Thompson model to Independent and identically distributed random trees. We study sufficient conditions under which the rumor either becomes extinct or survives with positive probability. Nesta tese, estudamos o modelo de rumor de Maki-Thompson em árvores homogêneas infinitas que é formulado como um processo de Markov a tempo contínuo. Este modelo pode ser definido como um sistema de partículas interagentes representando a disseminação de um boato por indivíduos em uma árvore homogênea. Assumimos que cada indivíduo possa pertencer a uma das três classes em uma população representada por: ignorantes, propagadores e contidos. Um propagador conta o boato a qualquer um de seus vizinhos ignorantes a uma taxa constante. Por outro lado, com a mesma taxa, um propagador torna-se um contido depois de interagir com outro propagador ou um contido. Ainda neste trabalho, estendemos nossa análise a duas generalizações, na primeira supomos que cada propagador deixa de propagar o boato logo após estar envolvido em um determinado número de tentativas frustradas e na segunda estendemos o modelo de Maki-Thompson às árvores aleatórias independentes e identicamente distribuídas. Estudamos condições suficientes sob as quais o boato se extingue ou sobrevive com probabilidade positiva. Capes: 88882.427026/2019-01
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- 2021
186. Theoretical and computational analysis of stochastic processes inspired by biological systems
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Carlos Eduardo Hirth Pimentel, Rodriguez, Pablo Martin, Pablo Martin Rodriguez, Carolina Bueno Grejo, Élcio Lebensztayn, Erika Alejandra Rada Mora, and Valdivino Vargas Junior
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Complex systems ,Modelo dos sapos ,Mean-Field aproximations ,PROBABILIDADE E ESTATISTICA::PROBABILIDADE::TEOREMAS DE LIMITE [CIENCIAS EXATAS E DA TERRA] ,Sistemas complexos ,Modelo predador-presa ,Frog model ,Cadeia de Markov a tempo contínuo ,PROBABILIDADE E ESTATISTICA::PROBABILIDADE [CIENCIAS EXATAS E DA TERRA] ,Continuos time Markov chain ,Predator-Prey models ,PROBABILIDADE E ESTATISTICA::PROBABILIDADE::PROCESSOS MARKOVIANOS [CIENCIAS EXATAS E DA TERRA] ,PROBABILIDADE E ESTATISTICA::ESTATISTICA [CIENCIAS EXATAS E DA TERRA] ,Aproximação via campo médio - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The aim of this work is to present two methodologies based on the theoretical and computational analysis of continuous time stochastic processes inspired by biological systems, whose dynamics are influenced by the stochastic nature of their constituent entities. In the first part, we studied a particle system called the frog model (MS), in which there are two types of particles: the inactive and the active, so that each active particle runs a random walk, running through a finite graph $ \G $. Among the quantities of interest we have the proportions of each possible state over time and the final proportion of vertices visited or not visited by active particles. In this part of the thesis, we look for information about this proportion for different finite graphs. The effectiveness of the modeling techniques were analyzed using the following three approaches: Density-dependent Markov chains method (CMDD), approaching the mean field approaches (ACM) and computer simulations (SC). In the first two theoretical cases, their systems of equations were also obtained at a deterministic limit. These approaches were evaluated for the complete graphs $ \mathcal{K}_n $, complete bipartites graphs $ \mathcal{K}_{n_1, n_2} $, and for the cyclic graphs $ C_{n, c} $. The comparative results suggest a relationship between the density of the graph and the performance of the approaches in the MS and in this case, indicate that the three approaches are suitable for the M.S. for densely connected graphs. For cases considered sparse, the computational approach SC was presented as the most indicated. In the Part \ref{part: EDE_pred_presa}, a model based on stochastic differential equations is applied, using an ecological system consisting of a predator specialized in hunting a type of prey, only in its adult stage. Parallel to this, we assume that the predator's mortality rate is affected by a randomness of the environment. We discuss the influence of this premise on the dynamic behavior of the model through a theoretical and computational analysis and show that the stochastic differential equations provide a more adequate model for this system. O objetivo deste trabalho é apresentar resultados por meio de duas técnicas baseadas na análise teórica e computacional de processos estocásticos a tempo continuo inspirados em sistemas biológicos, cuja dinâmica é influenciada pela natureza estocástica de seus entes constituintes. Na primeira parte, estudamos um sistema de partículas denominado de modelo dos sapos (MS), no qual existem dois tipos de partículas: as inativas e as ativas, de forma que, cada partícula ativa executa um passeio aleatório, percorrendo um grafo finito $\G$. Entre as quantidades de interesse temos, as proporções de cada estado possível ao longo do tempo e a proporção final de vértices visitados ou não visitados por partículas ativas. Nesta parte da tese, procuramos a informação sobre esta proporção para diferentes grafos finitos. A efetividade das técnicas de modelagem foram analisadas por meio das três seguintes abordagens: Método das cadeias de Markov dependentes da densidade (CMDD), abordagem das aproximações via campo médio (ACM) e as simulações computacionais (SC). Nos dois primeiros casos teóricos, foram determinados também seus sistemas de equações no limite determinístico. Essas abordagens foram avaliadas para os grafos completos $ \mathcal{K}_n $, bipartidos completos $\mathcal{K}_{n_1,n_2}$, e para os grafos cíclicos $ C_{n,c} $. Os resultados comparativos sugerem uma relação entre a densidade do grafo e o desempenho das abordagens no MS e neste caso, indicam que as três abordagens são adequados para o M.S. para grafos densamente conectados. Para os casos considerados esparsos, a abordagem computacional SC se apresentou como a mais indicada. Na Parte \ref{part:EDE_pred_presa}, considera-se um modelo baseado em equações diferencias estocásticas aplicado um sistema ecológico constituído por um predador especializado em caçar um tipo de presa, apenas no seu estágio adulto. Paralelamente a isto, supomos que a taxa de mortalidade do predador é afetada por uma aleatoriedade do meio ambiente. Discutimos sobre a influência desta premissa no comportamento dinâmico do modelo através de uma análise teórica e computacional e mostramos que as equações diferencias estocásticas fornecem um modelo mais adequado a este sistema. CAPES: Código Financeiro 001
- Published
- 2020
187. Modelagem determinística e estocástica para a disseminação local do câncer
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Nuñez Villa, Julio César, Coletti, Cristian Favio, Berbert, Juliana Militão, Mora, Erika Alejandra Rada, Grejo, Carolina Bueno, and Neves, Eduardo Jordão
- Subjects
CÉLULAS TUMORAIS ,EQUAÇÕES DIFERENCIAIS ,MATHEMATICAL MODELING ,DIFFERENTIAL EQUATIONS ,PROGRAMA DE PÓS-GRADUAÇÃO EM MATEMÁTICA - UFABC ,MATRIZ EXTRACELULAR ,TUMOR CELLS ,MODELAGEM MATEMÁTICA ,PROCESSOS DE MARKOV ,EXTRACELLULAR MATRIX ,MARKOV PROCESSES - Abstract
Orientador: Prof. Dr. Cristian Favio Coletti Coorientador: Prof. Dr. Norberto Anibal Maidana Tese (doutorado) - Universidade Federal do ABC, Programa de Pós-Graduação em Matemática, 2019. Devido à complexidade do crescimento tumoral é necessário abordá-la desde diferentes perspectivas; nesse sentido uma melhor compreensão dos processos involucrados na disseminação do câncer pode estudar a formação e a evolução do câncer. A modelagem matemática do câncer permite descrever mecanismos e fornecer previsões quantitativas, podendo complementar estudos experimentais e clínicos. Neste trabalho propomos modelos matemáticos para estudar o fenômeno observado no crescimento do tumor e sua interação com seu meio, a saber, a interação focada entre as células tumorais, a matriz extracelular (MEC) e as enzimas degradadoras da matriz extracelular; a dinâmica é modelada por sistemas determinísticos e estocásticos. Realizamos um estudo da dinâmica temporal, mediante pontos de equilíbrio e estabilidade, o qual permitiu obter uma bifurcação tanto na existência dos pontos de equilíbrio quanto nas suas estabilidades em relação às competições entre a MEC e o tumor. No modelo determinístico espacial incorporamos mecanismos migratórios (difusão e haptotaxia). Obtemos, nas simulações espaciais, em dimensão um, a formação de uma frente de onda, para a qual analisamos a velocidade resultando relações nas velocidades em referencia aos parâmetros das competições entre a MEC e o tumor. Essas relações obtidas concordam com algumas observações biológicas e experimentais. No primeiro modelo estocástico, estudamos mediante processos de flutuações o processo de crescimento tumoral em torno aos pontos críticos. Elucidando, mediante simulações numéricas, o comportamento assintótico perto do equilíbrio em relação ao parâmetro de competição entre MEC/tumor e MEC/MEC. Apresentamos um modelo de sistemas de partículas em interação no espaço Zd. E obtemos que poderiam existir três cenários principais: a coexistência das partículas (distribuição estacionaria não-trivial), o câncer se propagou degradando totalmente a MEC e quando o organismo tornou-se livre de doença (distribuições estacionarias triviais). Finalmente comparamos os modelos determinísticos e estocásticos, obtendo semelhanças qualitativas entre eles. As a result of the complexity of tumor growth, different perspectives are necessary to approach it. A better understanding of the processes involved in the spread of cancer can study its formation and evolution. The mathematical modeling of cancer allows describing mechanisms and providing quantitative predictions, which may complement experimental and clinical studies. In this research, we propose mathematical models to study the observed phenomena in tumor growth and its interaction with its environment, in other words, the focused interaction between tumor cells, extracellular matrix (ECM) and matrix degrading enzymes extracellular. This interaction is modeled by deterministic and stochastic systems. We performed a study of the temporal dynamic, through points of equilibrium and stability, which allowed to obtain a bifurcation both in the existence of the equilibrium points and in its stabilities, in relation to the competitions between the ECM and the tumor. In the spatial deterministic model we incorporate migratory mechanisms (diffusion and haptotaxis). In the one-dimensional space simulations, we obtained the formation of a wavefront, for which it was analyzed the velocity, obtaining relations in the velocities in reference to the parameters of the competitions between the ECM and the tumor. These obtained relations match with some biological and experimental observations. In the first stochastic model, we studied the process of tumor growth around the critical points by means of fluctuation processes. Elucidating, by numerical simulations, the asymptotic behavior close to equilibrium in relation to the competition parameter between ECM/tumor and ECM/ECM. We present a model of particle systems interacting in space Zd, as result of this interaction we concluded that there could be three main scenarios: (1) the coexistence of the particles (non-trivial stationary distribution); (2) the cancer has spread by completely depleting the ECM and (3) the organism has become disease-free (trivial stationary distributions). Finally we compared the deterministic and stochastic model and obtained qualitative similarities between them.
- Published
- 2019
188. Unraveling the expression of the oncogene YAP1, a Wnt/beta-catenin target, in adrenocortical tumors and its association with poor outcome in pediatric patients.
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Abduch RH, Carolina Bueno A, Leal LF, Cavalcanti MM, Gomes DC, Brandalise SR, Masterallo MJ, Yunes JA, Martinelli CE Jr, Tone LG, Tucci S, Molina CA, Ramalho FS, Moreira AC, Cardinalli IA, Scrideli CA, Ramalho LN, de Castro M, and Antonini SR
- Subjects
- Adaptor Proteins, Signal Transducing genetics, Adolescent, Adrenal Cortex Neoplasms genetics, Adrenal Cortex Neoplasms mortality, Carcinogenesis, Cell Line, Tumor, Cell Proliferation, Child, Child, Preschool, Female, Gene Expression Regulation, Neoplastic, Humans, Infant, Male, Neoplasm Metastasis, Neoplasm Recurrence, Local, Phosphoproteins genetics, Signal Transduction, Survival Analysis, Transcription Factors, Wnt Proteins metabolism, YAP-Signaling Proteins, beta Catenin metabolism, Adaptor Proteins, Signal Transducing metabolism, Adrenal Cortex metabolism, Adrenal Cortex Neoplasms metabolism, Phosphoproteins metabolism
- Abstract
Background: Overexpression of the oncogene yes-associated-protein-1 (YAP1) is associated with increased cell proliferation in human cancers. YAP1 is a potential target of the Wnt/beta-catenin pathway, which plays an important role in adrenocortical tumors (ACT). The role of YAP1 in adrenocortical tumorigenesis has not been assessed., Aims: To evaluate YAP1 expression in normal adrenals and pediatric ACT and its association with disease outcome. To investigate the interaction between YAP1 and the Wnt/beta-catenin pathway in adrenocortical cells., Results: Strong YAP1 staining was present in fetal adrenals and pediatric ACT but weak in postnatal adrenals. In pediatric ACT, YAP1 mRNA overexpression was associated with death, recurrent/metastatic disease and lower overall survival. The inhibition of the Wnt/beta-catenin pathway increased YAP1 mRNA expression. siYAP1 increased CTNNB1/beta-catenin expression and nuclear staining regardless of DLV2, moreover, it decreased cell growth and impaired cell migration., Materials and Methods: We assessed in 42 pediatric ACT samples the YAP1 protein expression by immunohistochemistry and mRNA expression by RT-qPCR and analyzed their association with outcome. As controls, we resort 32 fetal and postnatal normal adrenals for IHC and 10 normal adrenal cortices for RT-qPCR. The interaction between YAP1 and the Wnt/beta-catenin pathway was assessed in NCI-H295 adrenocortical cells by inhibiting the TCF/beta-catenin complex and by knocking down YAP1., Conclusion: YAP1 overexpression is a marker of poor prognosis for pediatric patients with ACT. In adrenocortical cells, there is a close crosstalk between YAP1 and Wnt/beta-catenin. These data open the possibility of future molecular therapies targeting Hippo/YAP1 signaling to treat advanced ACT.
- Published
- 2016
- Full Text
- View/download PDF
189. Mycosis fungoides: case report treated with radiotherapy.
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Marta GN, Gouvêa CB, Ferreira SB, Hanna SA, Haddad CM, and Silva JL
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- Humans, Male, Middle Aged, Mycosis Fungoides diagnosis, Skin Neoplasms diagnosis, Treatment Outcome, Mycosis Fungoides radiotherapy, Skin Neoplasms radiotherapy
- Abstract
Mycosis fungoides is a rare type of non-Hodgkin's lymphoma of T cells that primarily affects the skin. It is characterized by the presence of erythematous plaques that evolve into ulcerated lesions, tumors throughout the skin or even bone marrow infiltration in advanced stages. Chemotherapy and topical steroids, phototherapy and radiotherapy are treatment options for early cases. This study reports the case of patient with multiple tumor lesions in the skin already biopsied with diagnosis of mycosis fungoides. The patient was refractory to both treatments with topical chemotherapy and phototherapy. It was then indicated total skin irradiation with electrons.
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- 2011
- Full Text
- View/download PDF
190. [Lower urinary tract symptoms and erectile dysfunction].
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Lavalle LL, Almagro AA, Bravo CB, and Martínez LC
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- Humans, Male, Prostatic Hyperplasia complications, Prostatic Hyperplasia therapy, Prostatism physiopathology, Prostatism therapy, Risk Factors, Erectile Dysfunction etiology, Prostatism complications
- Abstract
Objectives: The relationship between lower urinary tract symptoms (LUTS) and erectile dysfunction (ED)is the result of their greater association in advanced age. Nevertheless, several investigations show that urinary tract symptoms have an independent relationship with sexual dysfunction and lower satisfaction. Likewise, the severity of LUTS correlates with the magnitude of sexual dysfunction in all age groups, which suggests a possible causal relationship. A series of hypothesis have been posed to explain the existence of a common physiopathology for LUTS and ED. Currently, this relationship between LUTS and ED is supported on four theories, which are not mutually excluding, (a) autonomic hyperactivity and metabolic syndrome hypothesis, (b) changes in nitric oxide/nitric oxide (NOS/NO) synthetase in the guanine monophosphatase pathway in penis and prostate, (c) the activation of Rho kinase and the endothelin pathway, and (d) the physiopathological consequences of pelvic arteriosclerosis. Given the contribution of sexual function to keep the quality of life, possible negative effects on sexual function should be taken into consideration when choosing treatment for benign prostatic hyperplasia. The combined therapeutic approach of these two entities (ED and LUTS)brings a benefit to the patient both in urinary symptoms and sexual sphere, although placebo controlled studies are required to confirm these data and to ascertain the role of combination therapy in the treatment of both conditions.
- Published
- 2010
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