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Id: lil-445680
Autor: Figueiredo, Márcio de Azevedo; Lanes, Carlos Frederico Ceccon; Almeida, Daniela Volcan; Marins, Luis Fernando.
Título: Improving the production of transgenic fish germlines: in vivo evaluation of mosaicism in zebrafish (Danio rerio) using a green fluorescent protein (GFP) and growth hormone cDNA transgene co-injection strategy
Fonte: Genet. mol. biol;30(1):31-36, 2007. ilus, tab.
Idioma: en.
Projeto: Conselho Nacional de Desenvolvimento Científico e Tecnológico. PROFIX; . Fundação Universidade Federal do Rio Grande.
Resumo: In fish, microinjection is the method most frequently used for gene transfer. However, due to delayed transgene integration this technique almost invariably produces mosaic individuals and if the gene is not integrated into germ cells its transmission to descendants is difficult or impossible. We evaluated the degree of in vivo mosaicism using a strategy where a reporter transgene is co-injected with a transgene of interest so that potential germline founders can be easily identified. Transgenic zebrafish (Danio rerio) were produced using two transgenes, both comprised of the carp beta-actin promoter driving the expression of either the green fluorescent protein (GFP) reporter gene or the growth hormone cDNA from the marine silverside fish Odonthestes argentinensis. The methodology applied allowed a rapid identification of G0 transgenic fish and also detected which fish were transmitting transgenes to the next generation. This strategy also allowed inferences to be made about genomic transgene integration events in the six lineages produced and allowed the identification of one lineage transmitting both transgenes linked on the same chromosome. These results represent a significant advance in the reduction of the effort invested in producing a stable genetically modified fish lineage.
Descritores: Peixe-Zebra/genética
Animais Geneticamente Modificados/crescimento & desenvolvimento
Proteínas de Fluorescência Verde
-Hormônio do Crescimento
DNA Complementar
Microinjeções
Limites: Animais
Responsável: BR1.1 - BIREME


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Id: biblio-1038681
Autor: Souza, E. Q; Bittencourt, T. Q. M; Ferreira, R. C. B; Oliveira, E. G. S; Silva, N. P. C; Silva, S. C. B. L; Cadena, M. R. S; Cadena, P. G.
Título: Exposição crônica ao cloridrato de metformina e à glibenclamida causa alterações comportamentais, glicêmicas e de mortalidade em Hemigrammus caudovittatus e Danio rerio / Chronic exposure to metformin chloridrate and glibenclamide causes behavioral, blood glucose and mortality changes of Hemigrammus caudovittatus and Danio rerio
Fonte: Arq. bras. med. vet. zootec. (Online);71(5):1582-1590, set.-out. 2019. tab, ilus.
Idioma: pt.
Projeto: Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco.
Resumo: Hemigrammus caudovittatus e Danio rerio foram expostos aos hipoglicemiantes orais (HOs) cloridrato de metformina a 40µg/L e 120µg/L e glibenclamida a 0,13µg/L e 0,39µg/L durante 100 dias. Foram avaliados os efeitos tóxicos dos fármacos em relação ao peso, ao comportamento animal, à glicemia e à mortalidade. H. caudovittatus expostos à menor concentração dos fármacos apresentaram aumento significativo (P<0,05) no evento Respiração Aérea. Ainda, foi observado aumento no comportamento Descansar quando os animais foram expostos à glibenclamida a 0,39µg/L. Em D. rerio expostos ao cloridrato de metformina a 120µg/L, foi observado aumento (P<0,05) no comportamento Descansar. A glibenclamida provocou redução (P<0,05) na glicemia de H. caudovittatus. Ambos os fármacos causaram efeito letal na espécie D. rerio, contudo a glibenclamida foi mais tóxica, causando 100% de mortalidade em 30 dias de exposição. Os animais que vieram a óbito apresentaram congestão nos arcos branquiais e hemorragia. Os HOs foram desenvolvidos para apresentarem efeitos fisiológicos em mamíferos, entretanto efeitos tóxicos foram encontrados nas duas espécies de peixe estudadas. Isso levanta a preocupação sobre possíveis efeitos tóxicos de HOs e sobre quais métodos serão utilizados para a sua degradação no ambiente aquático.(AU)

Hemigrammus caudovittatus and Danio rerio were exposed to oral hypoglycemic drugs (HOs) metformin hydrochloride at 40µg/L and 120µg/L and to glibenclamide at 0.13µg/L and 0.39µg/L during 100 days. Toxic effects of the drugs were evaluated based on weight, animal behavior, blood glucose and mortality. H. caudovittatus exposed to lowest concentration of the drugs showed significant increase (P< 0.05) in the Air breathing event. Furthermore, increase in Rest event was observed when animals were exposed to glibenclamide at 0.39µg/L. An increase (P< 0.05) in the frequency of Rest behavior in the D. rerio exposed to metformin hydrochloride at 120µg/L was observed. Glibenclamide caused decrease (P< 0.05) in the blood glucose of H. caudovittatus. Both drugs caused lethal effect against D. rerio. Nevertheless, glibenclamide was more toxic causing 100% of mortality after 30 days of exposure. The animals that died showed congestion on the branchial arches and hemorrhage. The HOs were developed to have physiological effects in mammals. However, toxic effects were found in both species of fish studied. This raises concerns about possible toxic effects of HOs and what methods will be used for their degradation in the aquatic environment.(AU)
Descritores: Peixe-Zebra
Glibureto/toxicidade
Testes de Toxicidade/veterinária
Resíduos Químicos
Characidae
Hipoglicemiantes/toxicidade
Metformina/toxicidade
-Modelos Animais
Limites: Animais
Responsável: BR68.1 - Biblioteca Virginie Buff D'Ápice


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Silveira, Themis Reverbel da
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Id: biblio-1025553
Autor: Ferrari, Jéssica Tonin; Ayres, Raquel; Hammes, Thais Ortiz; Silveira, Themis Reverbel da; Uribe-Cruz, Carolina.
Título: Experimental model of hepatic steatosis by fructose in adult zebrafish: a pilot study
Fonte: Clin. biomed. res;38(2):151-154, 2018.
Idioma: en.
Resumo: Introduction: The consumption of fructose has been questioned, since its increase has led to an associated increase in steatosis caused by nonalcoholic fatty liver disease. Despite the advantages presented by the zebrafish as an animal model, at present there are no models of steatosis by fructose in adult zebrafish. The aim of this study is to establish a model of hepatic steatosis by fructose in adult zebrafish. Methods: Firstly, adult zebrafish were daily exposed to 4% or 6% fructose. Then, animals were exposed to 6% fructose every 2 days. The hepatic lipid accumulation was analyzed by Nile Red and Oil Red O staining. Results: The daily exposure to 6% fructose showed increased accumulation of hepatic lipids when compared to 4% and control groups, but the same concentration showed no difference when the exposure happened every 2 days. Conclusion: We can suggest the daily exposure to a concentration of 6% fructose can be considered as a new experimental model of adult zebrafish. (AU)
Descritores: Peixe-Zebra
Modelos Animais
Frutose/efeitos adversos
-Fígado Gorduroso/prevenção & controle
Limites: Animais
Tipo de Publ: Ensaio Clínico Controlado
Responsável: BR18.1 - Biblioteca FAMED/HCPA


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Id: lil-755830
Autor: Alnimr, Amani M.
Título: Dormancy models for Mycobacterium tuberculosis: A minireview
Fonte: Braz. j. microbiol;46(3):641-647, July-Sept. 2015. tab, ilus.
Idioma: en.
Resumo:

Dormancy models for Mycobacterium tuberculosis play important roles in understanding various aspects of tuberculosis pathogenesis and in the testing of novel therapeutic regimens. By simulating the latent tuberculosis infection, in which the bacteria exist in a non-replicative state, the models demonstrate reduced susceptibility to antimycobacterial agents. This minireview outlines the models available for simulating latent tuberculosis both in vitro and in several animal species. Additionally, this minireview discusses the advantages and disadvantages of these models for investigating the bacterial subpopulations and susceptibilities to sterilization by various antituberculosis drugs.

.
Descritores: Antituberculosos/farmacologia
Modelos Animais de Doenças
Tuberculose Latente/patologia
Mycobacterium tuberculosis/crescimento & desenvolvimento
Tuberculose Pulmonar/patologia
-Farmacorresistência Bacteriana
Indicadores e Reagentes/farmacologia
Tuberculose Latente/tratamento farmacológico
Tuberculose Latente/microbiologia
Macaca fascicularis
Mycobacterium tuberculosis/efeitos dos fármacos
Mycobacterium tuberculosis/metabolismo
Oxazinas/farmacologia
Tuberculose Pulmonar/tratamento farmacológico
Tuberculose Pulmonar/microbiologia
Xantenos/farmacologia
Peixe-Zebra
Limites: Animais
Cobaias
Camundongos
Coelhos
Tipo de Publ: Revisão
Responsável: BR1.1 - BIREME


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Alvarez, M
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Id: lil-708727
Autor: Alvarez, M; Urbina, G; Perdomo, L.
Título: Excretion product of shigella dysenteriae (sdyep) induced cell death in early larval stage of zebrafish (danio rerio): acridine orange and ethidium bromide (AO/EB) in vivo staining / Producto de excreción de shigella dysenteriae (pesdy) induce muerte celular en larvas de pez cebra (danio rerio): marcaje in vivo con naranja de acridina y bromuro de etidio (NA/BE)
Fonte: Int. j. morphol;32(1):84-89, Mar. 2014. ilus.
Idioma: en.
Resumo: In the field of studies of acute toxicity induced by bacterial agents, Shiga toxins have been relevant due to the severity of the extra-intestinal diseases they cause. Numerous studies have shown that Shiga toxin induced apoptosis in different cell types; however, this important process has been little studied in vivo experimental models. In this study, the effects of excretion products of Shigella dysenteriae, in which Shiga toxin is present, were investigated on early larval stages of Zebrafish, an animal model with many advantages over other in vivo experimental models traditionally used. Both the collection of eggs and larvae of Zebrafish, and the product from excretion from Shigella dysenteriae (SdyEP) were performed according to laboratory standards. Also, toxicity bioassay, larvae treatment with pure and diluted solution, 10-1, 10-2, 10-3 , 10-4 and 10-5, v/v SdyEP and cell death in vivo using Acridine Orange (AO) and Ethidium Bromide (EB) were applied. The excretion product of Shigella dysenteriae (SdyEP) effect was expressed in terms of larval mortality and dependent dilution rather than incubation time. The larval population surviving treatment with Shigella excretion product presents severe morphological effects. The larval population generally presents notable severe morphological damage, the necrosis state is represented by the opacity of the larvae after being treated for 24 h (b) compared to control. Other changes associated with larval anatomy were also observed; particularly the caudal end curvature was significant into 10%. The use of AO/EB revealed a distribution pattern from fluorescence into green and orange in surviving larvae SdyEP poisoning, there was a large population of dead cells around the anal and caudal region as evidenced by the presence of orange nuclei in greater numbers as controls in the larvae. The results support the application of coloring AO/EB in Zebrafish experimental models for the evaluation of the toxic action of new molecules and new products with therapeutic potential.

En el campo de los estudios de toxicidad aguda inducida por agentes bacterianos, las toxinas Shiga resultan relevantes debido a la severidad de las enfermedades extra-intestinales que causan. Numerosos estudios han demostrado que la toxina Shiga induce la apoptosis en diferentes tipos de células, sin embargo, este importante proceso ha sido poco estudiado en modelos experimentales in vivo. En este estudio, fueron evaluados los efectos del productos de excreción de Shigella dysenteriae (PESdy), sobre estadios larvarios de pez cebra (Danio rerio), un modelo animal con muchas ventajas sobre otros modelos experimentales in vivo utilizados tradicionalmente. Tanto la recolección de los huevos y larvas de pez cebra, así como la obtención del producto de la excreción, se realizaron de acuerdo a los estándares de laboratorio. Poblaciones larvarias, fueron tratadas con distintas soluciones; pura y diluidas, 101, 10-2, 10-3, 10-4 y 10-5, v/v de PESdy. La muerte celular in vivo, usando naranja de acridina (NA) y bromuro de etidio (BE) fue evaluada. El efecto del SdyEP, se expresó como dependiente de la concentracion y del tiempo de exposición. La población de larvas sobrevivientes, presentaron curvatura troncal en un 10%, en relación a los controles. La necrosis se puso en evidencia a través de la opacidad de las larvas después de 24 h. El uso de NA/BE reveló un patrón de distribución de la fluorescencia en verde y naranja en larvas sobrevivientes al tratamiento. Una granpoblación de células muertas, alrededor de la región anal y caudal, se ponen en evidencia por la presencia de núcleos de naranja en mayor número que en los controles. Los resultados apoyan la aplicación de la coloración NA/BE en modelo experimental de pez cebra, para la evaluación de la acción tóxica de nuevas moléculas y nuevos productos de excreción bacterial con potencial terapéutico.
Descritores: Shigella dysenteriae/fisiologia
Peixe-Zebra
Apoptose
Toxina Shiga/toxicidade
-Laranja Acridina
Etídio
Larva
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-954205
Autor: Moussa, Eid A; Farouk, Sameh M; Abbott, Louise C; Hassan, Said.
Título: Use of zebrafish ( Danio rerio ) embryos as a model to assess effects of mercury on developing skeletal muscle: a morphometric and immunohistochemical study / Uso de embriones de pez cebra ( Danio rerio ) como modelo para evaluar los efectos del mercurio en el desarrollo del músculo esquelético: un estudio morfométrico e inmunohistoquímico
Fonte: Int. j. morphol;36(3):901-908, Sept. 2018. graf.
Idioma: en.
Resumo: Exposure to mercury in the environment continues to be a significant worldwide concern, especially for developing embryos and fetuses. While extensive research effort has focused on the effects of mercury on the developing nervous system, much less is known concerning adverse effects of mercury on other organ systems, including the development of skeletal muscle. We exposed developing zebrafish embryos to a range of concentrations of mercuric chloride (100 to 400 µg/liter or ppb) and compared them to control embryos (0 µg/L mercuric chloride). Embryos were examined at 48 hours post fertilization (hpf) for morphometry and morphological deformities of skeletal muscle fibers in the trunk and tail. Embryos exposed to 400 ppb mercuric chloride showed decreased trunk and tail areas compared to control embryos. A dose-dependent reduction in muscle fiber length was observed, and exposure to all concentrations of mercuric chloride used in this study resulted in decreased muscle fiber immunohistochemical staining with anti-myosin antibodies. Irregular muscle fiber diameters, twisted muscle fibers, and degenerated muscle fibers were observed in sections of embryos stained with eosin at the higher exposure concentrations. Evidence presented in this study suggests that exposure to even low concentrations of mercuric chloride adversely affects skeletal muscle fiber development or muscle fiber integrity, or both.

La exposición al mercurio en el medio ambiente sigue siendo una preocupación mundial importante, especialmente para el desarrollo de embriones y fetos. Si bien un amplio esfuerzo de investigación se ha centrado en los efectos del mercurio en el sistema nervioso en desarrollo, se sabe mucho menos sobre los efectos adversos en otros sistemas orgánicos, incluido el desarrollo del músculo esquelético. Expusimos embriones de pez cebra en desarrollo a un rango de concentraciones de cloruro de mercurio (100 a 400 mg / l o ppb) y los comparamos con embriones de control (0 mg / L de cloruro de mercurio). Los embriones se examinaron a las 48 horas después de la fertilización (HPF) pararealizar la morfometría y verificar las deformidades morfológicas de las fibras del músculo esquelético en el tronco y la cola. Los embriones expuestos a 400 ppb de cloruro de mercurio mostraron una disminución de las áreas del tronco y la cola en comparación con los embriones de control. Se observó una reducción dependiente de la dosis en la longitud de la fibra muscular, y la exposición a todas las concentraciones de cloruro de mercurio utilizadas en este estudio, dio como resultado una tinción inmunohistoquímica de fibra muscular disminuida con anticuerpos anti-miosina. Se observaron diámetros irregulares de fibras musculares, fibras musculares retorcidas y fibras musculares degeneradas en secciones de embriones teñidos con eosina en las concentraciones de exposición más altas. La evidencia presentada en este estudio sugiere que la exposición incluso a bajas concentraciones de cloruro mercúrico afecta negativamente el desarrollo de la fibra del músculo esquelético o la integridad de la fibra muscular, o ambas.
Descritores: Músculo Esquelético/crescimento & desenvolvimento
Desenvolvimento Embrionário e Fetal/efeitos dos fármacos
Mercúrio/toxicidade
-Peixe-Zebra
Imuno-Histoquímica
Músculo Esquelético/efeitos dos fármacos
Modelos Animais de Doenças
Limites: Animais
Responsável: CL1.1 - Biblioteca Central


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Id: lil-754447
Autor: Reis-Pinto, Fernanda Christina; Barbalho, Patrícia Gonçalves; Mangolin, Rafael Felipe Pires; Maurer-Morelli, Cláudia Vianna.
Título: Análise Temporal dos Transcritos dos Genes bdnf e ntrk2 em Cérebro de Zebrafish Induzido à Crise Epiléptica por Pentilenotetrazol / Temporal transcript profile of bdnf, ntrk2a and ntrk2b genes in zebrafish brain after Pentylenotetrazole (PTZ)-induced seizure
Fonte: J. epilepsy clin. neurophysiol;18(4), dec. 2012. tab, ilus.
Idioma: pt.
Resumo: Objetivo: Investigar o perfil temporal de transcritos dos genes bdnf, ntrk2a e ntrk2b em cérebro de zebrafish após crise epiléptica induzida por Pentilenotetrazol (PTZ). Metodologia: Os animais foram divididos em Grupo PTZ (induzidos à crise epiléptica com PTZ 15mM) e Grupo Controle (animais sem crise epiléptica) e seus cérebros coletados nos tempos: 0h, 12h, 24h, 48h, 72h pós-crise. Reações de transcriptase reversa-PCR quantitativa foram realizadas com os controles endógenos 18s e ef1a usando-se o sistema TaqManTM (Applied Biosystems, Foster City). A quantificação relativa foi calculada pela equação QR=2–∆∆CT e a significância estatística dada pelo teste Kruskall-Wallis (p≤0,05). Resultados: No grupo PTZ houve um aumento significativo dos niveis de RNAm do gene bdnf no tempo 0h (p=0,017). O aumento de transcritos encontrado nos outros tempos não foi significante (p>0,05). Conclusão: Nossos resultados mostraram que a indução de crise epiléptica alterou o padrão de transcrito do gene bdnf no cérebro do zebrafish como visto em outros modelos animais e em humanos, porém em um padrão temporal diferente. Este é o primeiro estudo que descreve o perfil temporal de transcritos bdnf/ntrk2 em cérebro de zebrafish após crise epiléptica e contribui para a caracterização deste pequeno peixe como modelo de estudo em epilepsias.

Objective: The main aim of this study was to investigate the transcript profile of bdnf, ntrk2a and ntrk2b genes in adult zebrafish brain after Pentylenotetrazole (PTZ)-induced seizure. Methods: Zebrafish were separated in PTZ (seizure-induced) and Control (no seizure) groups. At 0h, 12h, 24h, 48h and 72h after seizure, animals were anesthetized and their brains were immediately collected for RNA extraction. Reverse transcriptase quantitativePCRs were carried out with 18S and ef1a as endogenous control using TaqManTM System (Applied Biosystems, Foster City). The relative quantification was calculated by the equation RQ=2–∆∆CT. Statistical analysis was performed by Kruskall-Wallis test (p≤0.05). Results: Comparisons between both groups showed an increase of bdnf mRNA levels in the PTZ group at 0h after seizure (p= 0.017). No statistical significance was found in other times investigated (p>0.05). Conclusions: Our results showed an up-regulation of the transcript levels of bdnf gene in zebrafish brain after seizure as seems in other models and humans, but in a different pattern. This is the first study investigating temporal pattern of bdnf, ntrk2a and ntrk2b genes in zebrafish brain after a seizure and contributes to characterize it as a model for epilepsy studies.
Descritores: Pentilenotetrazol
Peixe-Zebra
Fator Neurotrófico Derivado do Encéfalo
Epilepsia
Reação em Cadeia da Polimerase em Tempo Real
Tipo de Publ: Estudos de Avaliação
Responsável: BR1.1 - BIREME


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Id: lil-751383
Autor: Tanaka, Erika H.; Santos, Paulo F.; Reis, Júlia G.; Rodrigues, Natalia C.; Moraes, Renato; Abreu, Daniela C. C..
Título: Is there a relationship between complaints of impaired balance and postural control disorder in community-dwelling elderly women? A cross-sectional study with the use of posturography
Fonte: Braz. j. phys. ther. (Impr.) = Rev. bras. fisioter;19(3):186-193, May-Jun/2015. tab, graf.
Idioma: en.
Projeto: Fundação de Amparo à Pesquisa do Estado de São Paulo.
Resumo: Background: Risk of falls increases as age advances. Complaints of impaired balance are very common in the elderly age group. Objectives: The objective of this study was to investigate whether the subjective perception of impaired balance was associated with deficits in postural control (objective analysis) in elderly community-dwelling women. Method: Static posturography was used in two groups: elderly women with (WC group) and without (NC group) complaints of impaired balance. The area, mean sway amplitude and mean speed of the center of pressure (COP) in the anterior-posterior (AP) and medial-lateral (ML) directions were analyzed in three stances: single-leg stance, double-leg stance and tandem stance, with eyes open or closed on two different surfaces: stable (firm) and unstable (foam). A digital chronometer was activated to measure the time limit (Tlimit) in the single-leg stance. Kruskal-Wallis tests followed by Mann-Whitney tests, Friedman analyses followed by post hoc Wilcoxon tests and Bonferroni corrections, and Spearman statistical tests were used in the data analysis. Differences of p<0.05 were considered statistically significant. Results: The results of posturography variables revealed no differences between groups. The timed single-leg stance test revealed a shorter Tlimit in the left single-leg stance (p=0.01) in WC group compared to NC group. A negative correlation between posturography variables and Tlimit was detected. Conclusions: Posturography did not show any differences between the groups; however, the timed single-leg stance allowed the authors to observe differences in postural control performance between elderly women with and those without complaints of impaired balance. .
Descritores: Ossos Faciais/embriologia
Microscopia Confocal/métodos
Peixe-Zebra/embriologia
-Animais Geneticamente Modificados
Anormalidades Craniofaciais/genética
Morfogênese/genética
Morfogênese/fisiologia
Crista Neural/embriologia
Receptor alfa de Fator de Crescimento Derivado de Plaquetas/genética
Receptores Acoplados a Proteínas-G/genética
/genética
SMADABDOMEN PROTEIN/genética
Imagem com Lapso de Tempo/métodos
Proteínas de Peixe-Zebra/genética
Peixe-Zebra/genética
Limites: Animais
Tipo de Publ: Research Support, N.I.H., Extramural
Responsável: BR1.1 - BIREME


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Id: lil-747152
Autor: AlNoury, Mohammed K.; Almuhayawi, Saad M.; Alghamdi, Khalid B.; Al-Noury, Khaled I..
Título: Preoperative Imaging Modalities to Predict the Risk of Regional Nodal Recurrence in Well-Differentiated Thyroid Cancers
Fonte: Int. arch. otorhinolaryngol. (Impr.);19(2):116-120, Apr-Jun/2015. tab.
Idioma: en.
Resumo: Introduction Thyroid cancer incidence has increased in the previous 2 decades. Preoperative identification of lymph node metastasis is a suggested risk factor associated with recurrence following thyroidectomy. Objectives We aimed to evaluate the accuracy of preoperative radiologic investigations of nodal status in determining the postoperative risk of regional nodal recurrence in cases of well-differentiated thyroid cancer. Methods This is a case series. We retrospectively reviewed data, including preoperative ultrasonography and/or computed tomography results, on patients who underwent total thyroidectomy for thyroid cancer at our hospital between 2006 and 2012. Prognostic factors for predicting recurrence, including age, sex, tumor diameter, and nodal diameter, were evaluated. Results Total thyroidectomy was performed on 24 male and 74 female patients (median age, 43 years). The median follow-up time was 21 months. Sixty-eight patients had papillary thyroid cancer, and 30 had follicular cancer. Nodal recurrence was evident in 30% of patients, and 4% of patients died. Identification of lymph node involvement during preoperative radiologic investigations was strongly prognostic for recurrence: 35.3% of patients with positive preoperative ultrasonography findings and 62.5% of those with positive preoperative computed tomography findings had recurrence (p = 0.01). Conclusions Preoperative identification of lymph node metastasis on radiologic studies was correlated with an increased risk of regional nodal recurrence in well-differentiated thyroid cancer. Computed tomography was superior to ultrasonography in detecting metastatic nodal involvement preoperatively and is therefore recommended for preoperative assessment and postoperative follow-up. .
Descritores: Hematopoese/genética
Leucemia Mieloide Aguda/genética
Proteínas de Peixe-Zebra/fisiologia
Peixe-Zebra/fisiologia
/fisiologia
FMS-LIKE TYROSINE KINASE ABATTOIRS/fisiologia
-Sequência de Aminoácidos
Animais Geneticamente Modificados
Sequência Conservada
Embrião não Mamífero
Dados de Sequência Molecular
Estrutura Terciária de Proteína/genética
Homologia de Sequência de Aminoácidos
Sequências de Repetição em Tandem
Transcriptoma
Proteínas de Peixe-Zebra/química
Peixe-Zebra/embriologia
/química
FMS-LIKE TYROSINE KINASE ABATTOIRS/química
Limites: Animais
Seres Humanos
Tipo de Publ: Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME


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Id: lil-746674
Autor: Barrera, Alinne Z.; Nichols, Alexandra D..
Título: Depression help-seeking attitudes and behaviors among an Internet-based sample of Spanish-speaking perinatal women / Actitudes y comportamientos de búsqueda de ayuda para la depresión en una muestra basada en internet de mujeres de habla hispana en período perinatal
Fonte: Rev. panam. salud pública = Pan am. j. public health;37(3):148-153, Mar. 2015. tab.
Idioma: en.
Resumo: OBJECTIVE: To examine attitudes and beliefs related to help-seeking for depression among an international sample of pregnant women, a majority of whom were Spanish-speakers residing in Latin America. METHODS: More than 6 000 (n = 6 672) pregnant women met eligibility criteria and consented to participate between 15 January 2009-12 August 2011. Of these, 1 760 with a Latino/Hispanic background completed a baseline survey as part of a larger study. Group comparisons analyzed attitudes and behaviors related to seeking help for depression, while a logistic regression was conducted to identify demographic characteristics related to help-seeking support. RESULTS: Of the participants, three-fourths reported experiencing depression during or after their current or past pregnancies. The majority of participants did not seek help, and generally reported ambivalence about their depressive symptoms and uncertainty as to the helpfulness of others. However, 44.8% did seek help, mostly by speaking to family or partners and reported feeling fear, shame, and embarrassment about their symptoms. A current major depressive episode and an income less than or equal to US$ 10 000 were significant predictors of help-seeking behaviors. CONCLUSIONS: Data from this study suggest that when feeling sad or depressed, perinatal Latinas tend to seek emotional support first from family and friends and may underutilize mental health services when needed. The Internet is an effective means for reaching perinatal women, especially those in areas of the world where there may be barriers to accessing psychological resources.

OBJETIVO: Analizar las actitudes y las creencias relacionadas con la búsqueda de ayuda para la depresión en una muestra internacional de mujeres embarazadas, la mayor parte de ellas hispanohablantes y residentes en América Latina. MÉTODOS: Más de 6 000 mujeres embarazadas (n = 6 672) cumplieron los criterios de selección y aceptaron participar entre el 15 de enero del 2009 y el 12 de agosto del 2011. De estas, 1 760 de origen latino o hispano completaron una encuesta básica que formaba parte de un estudio más amplio. Mediante comparaciones de grupo, se analizaron las actitudes y los comportamientos relacionados con la búsqueda de ayuda para la depresión, mientras que, mediante regresión logística, se determinaron las características demográficas relacionadas con la búsqueda de ayuda o apoyo. RESULTADOS: De todas las participantes, tres cuartas partes notificaron sentimientos de depresión durante o después de los embarazos actuales o pasados. La mayor parte de ellas no buscaron ayuda, y en general manifestaron ambivalencia acerca de sus síntomas depresivos e incertidumbre en cuanto a la capacidad de ayuda de otras personas. Sin embargo, 44,8% buscaron ayuda, principalmente hablando con familiares o compañeros, y notificaron sentimientos de temor, culpabilidad y vergüenza acerca de sus síntomas. Un episodio depresivo mayor actual y unos ingresos iguales o inferiores a US$ 10 000 fueron factores predictivos significativos de comportamientos de búsqueda de ayuda. CONCLUSIONES: Los datos de este estudio indican que, cuando se sienten tristes o deprimidas, las mujeres latinas en período perinatal tienden a buscar en primer lugar el apoyo emocional de la familia y los amigos, y podrían subutilizar los servicios de salud mental cuando son necesarios. La internet es un medio eficaz para llegar a las mujeres en período perinatal, especialmente a las que viven en zonas del mundo donde pueden existir barreras para el acceso a los recursos psicológicos.
Descritores: Blástula/metabolismo
Regulação da Expressão Gênica no Desenvolvimento
Xenopus/embriologia
Xenopus/genética
-Embrião não Mamífero/metabolismo
Perfilação da Expressão Gênica
Anotação de Sequência Molecular
Poli A/metabolismo
Poliadenilação/genética
Reprodutibilidade dos Testes
Estabilidade de RNA/genética
RNA Mensageiro Estocado/genética
RNA Mensageiro Estocado/metabolismo
Transcrição Genética
Fatores de Transcrição/metabolismo
Proteínas de Xenopus/genética
Proteínas de Xenopus/metabolismo
Peixe-Zebra/genética
Limites: Animais
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME



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