Adubação em pastagens degradadas de capim-colonião.

bitstream/item/64583/1/Altamira-PA3-81.pd

Introdução e avaliação de plantas forrageiras.

bitstream/item/57837/1/Altamira-PA4.pd

Papillomas And Carcinomas Of The Choroid Plexus: Histological And Immunohistochemical Studies And Comparison With Normal Fetal Choroid Plexus

Background: Choroid plexus tumors are rare. Results on immunohistochemical features are scanty and controversial even regarding normal plexus. Method: Thirteen cases of choroid plexus tumors and five samples of normal fetal choroid plexus were submitted to immunohistochemical study using a panel of epithelial, neuronal and stromal markers. Results/Conclusions: Relevant histological findings were presence of clear cells in 3/5 papillomas (PP) and 7/8 carcinomas (CA) and all 5 fetal plexuses; rhabdoid cells, desmoplasia and vascular proliferation were found respectively in 3, 4 and 5 cases out of 6 poorly differentiated CA and were absent in PP and well differentiated CA. Pancytokeratin AE1/AE3 was strongly positive in all 13 cases, even in the undifferentiated component of poorly differentiated CA, where reactivity was focal in 3 and diffuse in 3 cases. Low molecular weight cytokeratin (35βH11) was not expressed in any of the 8 CA, but was present in all 5 PP. In 4 of 6 poorly differentiated CA there was reactivity for smooth muscle actin (1A4) in 10 to 30% of the cells. This was true also for one case lacking rhabdoid cells. Laminin was undetectable in all 6 cases of poorly differentiated CA but was present in 4 PP and 2 well differentiated CA. All 5 fetal plexuses expressed GFAP.623 A600607Pianetti, G., Fonseca, L.F., Tumores do plexo coróideo (1998) Arq Neuropsiquiatr, 56, pp. 223-231Pencalet, P., Sainte-Rose, C., Lellouch-Tubiana, A., Papillomas and carcinomas of the choroid plexus in children (1998) J Neurosurg, 88, pp. 521-528Lynch, J.C., Moraes, G.P., Duarte, F., Xantogranuloma do plexo coróide (1988) Arq Neuropsiquiatr, 46, pp. 191-194Aguiar, M.F.M., Cavalcanti, M., Barbosa, H., Vilela, S.L., Mendonça, J.L., Horta, E., Síndrome de Aicardi e papiloma do plexo coróide: Uma associação rara (1996) Arq Neuropsiquiatr, 54, pp. 313-317Filho, P.G., Fonseca, L.F., Suva, M.C., Choroid plexus papilloma and Aicardi syndrome: Case report (2002) Arq Neuropsiquiatr, 60, pp. 1008-1010Matsushima, T., Choroid plexus papillomas and human choroid plexus, a light and electron microscopic study (1983) J Neurosurg, 59, pp. 1054-1062Marrazzoni, D.R., Barbosa-Coutinho, L.M., Plexos coróides: Estudo histopatológico em diferentes faixas etärias (1986) Arq Neuropsiquiatr, 44, pp. 341-350Kasper, M., Goertchen, R., Stosiek, P., Perry, G., Karsten, U., Coexistence of cytokeratin, vimentin and neurofilament protein in human choroid plexus: An immunohistochemical study of intermediate filaments in neuroepithelial tissues (1986) Virchows Arch A, 410, pp. 173-177Miettinen, M., Clark, R., Virtanen, I., Intermediate filament proteins in choroid plexus and ependyma and their tumors (1986) Am J Pathol, 123, pp. 231-240Doglioni, C., Dell'Orto, P., Coggi, G., Iuzzolino, P., Bontempini, L., Viale, G., Choroid plexus tumors: An imunocytochemical study with particular reference to the coexpression of intermediate filament proteins (1987) Am J Pathol, 127, pp. 519-529Felix, I., Phudhichareonrat, S., Halliday, W.C., Becker, L.E., Choroid plexus tumors in children: Immunohistochemical and scanning-electron-microscopic features (1987) Pediat Neurosci, 13, pp. 263-269Gabrion, J., Peraldi, S., Faivre-Bauman, A., Characterization of ependymal cells in hypothalamic and choroidal primary cultures (1988) Neuroscience, 24, pp. 993-1007Kouno, M., Kumanishi, T., Washiyama, K., Sekiguchi, K., Saito, T., Tanaka, R., An immunohistochemical study of cytokeratin and glial fibrillary acidic protein in choroid plexus papilloma (1988) Acta Neuropathol (Berl), 75, pp. 317-320Cruz-Sanchez, F.F., Rossi, M.L., Hughes, J.T., Coakham, H.B., Figols, J., Eynaud, P.M., Choroid plexus papillomas: An immunohistological study of 16 cases (1989) Histopathology, 15, pp. 61-69Sarnat, H.B., Regional differentiation of the human fetal ependyma: Immunocytochemical markers (1992) J Neuropathol Exp Neurol, 51, pp. 58-75Rubinstein, L.J., Brucher, J.M., Focal ependymal differentiation in choroid plexus papillomas: An immunoperoxidase study (1981) Acta Neuropathol (Berl), 53, pp. 29-33Taratuto, A.L., Molina, H., Monges, J., Choroid plexus tumors in infancy and childhood: Focal ependymal differentiation. An immunoperoxidase study (1983) Acta Neuropathol (Berl), 59, pp. 304-308Mannoji, H., Becker, L.E., Ependymal and choroid plexus tumors. Cytokeratin and GFAP expression (1988) Cancer, 61, pp. 1377-1385Furness, P.N., Lowe, J., Tarrant, G.S., Subepithelial basement membrane deposition and intermediate filament coexpression in choroid plexus neoplasms and ependymomas (1990) Histopathology, 16, pp. 251-255Herbert, J., Cavallaro, T., Dwork, A.J., A marker for primary choroid plexus neoplasms (1990) Am J Pathol, 136, pp. 1317-1325Newbould, M.J., Kelsey, A.M., Arango, J.C., Ironside, J.W., Birch, J., The choroid plexus carcinomas of childhood: Histopathology, immunocytochemistry and clinicopathological correlations (1995) Histopathology, 26, pp. 137-143Rorke, L.B., Packer, R.J., Biegel, J.A., Central nervous system atypical teratoid/rhabdoid tumors of infancy and childhood (1995) J Neurooncol, 24, pp. 21-28Rorke, L.B., Packer, R.J., Biegel, J.A., Central nervous system atypical teratoid/rhabdoid tumors of infancy and childhood: Definition of an entity (1996) J Neurosurg, 85, pp. 56-65Burger, P.C., ATT of the CNS: A highly malignant tumor of infancy and childhood frequently mistaken for medulloblastoma (1998) Am J Surg Pathol, 22, pp. 1083-1092Oka, H., Scheithauer, B.W., Clinicopathological characteristics of atypical teratoid/rhabdoid tumor (1999) Neurol Med Chir (Tokyo), 39, pp. 510-518Kleihues, P., Cavenee, W.K., (2000) Tumours of Central Nervous System, Pathology & Genetics, , Lyon: WHO, IARCWyatt-Ashmead, J., Kleinschmidt-DeMasters, B., Mierau, G.W., Choroid plexus carcinomas and rhabdoid tumors: Phenotypic and genotypic overlap (2001) Pediatr Dev Pathol, 4, pp. 545-549Russell, D.S., Rubinstein, L.J., (1989) Pathology of Tumours of the Nervous System. 5. Ed., , London: ArnoldSreenan, J.J., Prayson, R.A., Gliosarcoma: A study of 13 tumors, including p53 and CD34 immunohistochemistrty (1997) Arch Pathol Lab Med, 121, pp. 129-133Gessi, M., Giangaspero, F., Pietsch, T., Atypical teratoid/rhabdoid tumors and choroid plexus tumors: When genetics "surprise" pathology (2003) Brain Pathol, 13, pp. 409-414Lopes, M.B., Rosemberg, S., Almeida, P.C., Pestana, C.B., Glial fibrillary acidic protein and cytokeratin in choroid plexus tumors: An immunohistochemical study (1989) Pathol Res Pract, 185, pp. 339-341Jay, V., Ho, M., Chan, F., Malkin, D., p53 expression in choroid plexus neoplasms: An immunohistochemical study (1996) Arch Pathol Lab Med, 120, pp. 1061-1065Carlotti Jr., C.G., Salhia, B., Weitzman, S., Evaluation of proliferative index and cell cycle protein expression in choroid plexus tumors in children (2002) Acta Neuropathol, 103, pp. 1-10Ohgaki, H., Eibl, R.H., Schwab, M., Mutations of the p53 tumor suppressor gene in neoplasms of the human nervous system (1993) Mol Carcinog, 8, pp. 74-8

Uso da alelopatia como alternativa de controle de plantas infestantes em citros.

A citricultura brasileira apresenta números expressivos que traduzem a grande importância econômica e social que a atividade tem para a economia do país. Nessa direção, este trabalho estuda alternativas de manejo e controle de plantas infestantes para a cultura dos citros, visando sua sustentabilidade e redução dos custos com insumos, sobretudo herbicidas, em pomares localizados nos solos dos Tabuleiros Costeiros, a partir da supressão da interferência da matovegetação pela ação alelopática de palhadas de coberturas vegetais (roçadas), tanto nativas como implantadas, avaliando sua eficiência e comportamento como auxiliares no controle do mato.PDF. 193_11

Uso da alelopatia como alternativa de controle de plantas infestantes em pomar de laranjeira Pera.

O controle de plantas infestantes no sistema de produção de citros é um fator preponderante para a manutenção da boa produtividade dos pomares. No manejo convencional, esse controle é feito quase que exclusivamente a partir do uso de herbicidas

Análise da produção científica da Embrapa Informática Agropecuária no triênio 2000-2002.

Introdução. objetivos. Material e métodos. Resultado e discussão. Áreas de conhecimento mais produtiva. Temas mais produtivos. Tipos de publicações privilegiados. Tipos preferidos de publicações versus temas predominantes. Aderência aos projetos estratégicos. Comentários gerais.bitstream/CNPTIA/10657/1/doc48.pdfNome do quarto autor usado anteriormente: Sônia Ternes. Acesso em: 29 maio 2008

Crescimento de leguminosas submetidas a diferentes níveis de adubação com fosfato de rocha.

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