Showing papers by "Rio de Janeiro State University published in 1988"
TL;DR: The renal collecting system was studied in 100, 3-dimensional corrosion casts and also in 40 casts with the corresponding pyelograms, finding anatomical details that have great importance for endourology that the urologist must appreciate during operations on the collecting system.
53 citations
TL;DR: The BOAS (Brazil Old Age Schedule) questionnaire as mentioned in this paper was developed to survey the elderly population living in Rio de Janeiro, Brazil, and its manual, code book and the method employed for the training of field-work researchers.
Abstract: The increase of the elderly populations throughout the world has been investigated by many studies with a view to proving all the information necessary for the determination of policy and planning services. Steps to be taken in the preparation of questionnaires are discussed and common errors to be avoided are indicated. Differences in methodologies between community, mail and telephone surveys are also discussed. The BOAS (Brazil Old Age Schedule), questionnaire, which has been developed to survey the elderly population living in Rio de Janeiro is presented as also are its manual, code book and the method employed for the training of field-work researchers.
33 citations
TL;DR: Results indicate that phosphorolysis of acetyl phosphate occurs at higher rates on the surface of solid structures, through highly specific interactions involvingacetyl phosphate, orthophosphate, and divalent cations.
33 citations
TL;DR: Ethanolic extracts of leaves from Potomorphe umbellata and Potomorfhe peltata, popularly said to have antimalarial capacity, were submitted to the 4-day suppressive test in Plasmodium berghei-infected mice and evidenced strong antimalaria activity.
32 citations
TL;DR: Results suggest that in S. aureus, different structures could be responsible for their surface charge and hydrophobic properties.
Abstract: Modifications in the surface charge and hydrophobicity of Staphylococcus aureus Oxford during growth were studied by analysing electrophoretic mobility and adherence to hydrocarbons (hexadecane), respectively. Bacterial concentration had no effect upon the measurements. Both surface charge and hydrophobicity varied during the exponential phase of growth (1 to 4 h): surface charge decreased significantly (p < 0.001), while hydrophobicity increased (p < 0.001). In the stationary phase (4 to 9 h), the surface charge increased significantly (p < 0.001), whereas hydrophobicity showed no change. Cationized ferritin decreased the surface charge and had no effect on hydrophobicity. These results suggest that in S. aureus, different structures could be responsible for their surface charge and hydrophobic properties.
30 citations
TL;DR: This technique was used in two patients with severe mitral valve regurgitation and Formation of a neochorda and placement of a Carpentier ring to remodel the anulus obviated the need for a valve replacement.
27 citations
TL;DR: O envelhecimento da populacao e hoje um fenomeno universal, caracteristica tanto dos paises centrais como, de modo crescente, dos Paises do Terceiro Mundo, fazem parte de uma discussao especifica relativa a mulher idosa.
Abstract: O envelhecimento da populacao e hoje um fenomeno universal, caracteristica tanto dos paises centrais como, de modo crescente, dos paises do Terceiro Mundo. Os fatores responsaveis pelo envelhecimento sao discutidos, e o processo conhecido por "transicao demografica" abordado. As repercussoes para a sociedade do progressivo envelhecimento da populacao sao consideradas, particularmente no que diz respeito a saude. A mudanca do papel da mulher no mundo contemporâneo, o periodo de vida mais longo e suas consequencias, entre outros topicos, fazem parte de uma discussao especifica relativa a mulher idosa.
23 citations
TL;DR: It was observed that the region of higher ganglion cell density in the retina shows a flattened distribution and that the CBA intersects the retina at the temporal aspect of this region, suggesting that the ipsilateral field of both eyes may be represented in the striate cortex via the psilateral optic tract.
Abstract: Reference axes for the visuotopic study of the opossum's striate cortex were estimated from corresponding binocular response fields using multi-unit recording. These central binocular axes (CBA) were derived from experimental data based on the concept that corresponding receptive fields for each eye should be mostly in register under natural conditions. Vertical reference meridians, orthogonal to these axes, define a contralateral and an ipsilateral field for each eye with respect to the recording site. An ipsilateral field representation was observed for both eyes in the striate cortex at the transition zone with peristriate. Maximal values for the center and border of ipsilateral receptive fields were, respectively, 8 and 20 degrees for the contralateral eye and 6 and 14 degrees for the ipsilateral eye. An equivalent ipsilateral field representation was found in animals that had the anterior commissure cut prior to the recording session. This suggests that the ipsilateral field of both eyes may be represented in the striate cortex via the ipsilateral optic tract. Additionally, it was observed that the region of higher ganglion cell density in the retina shows a flattened distribution and that the CBA intersects the retina at the temporal aspect of this region.
23 citations
TL;DR: The recent economic reappraisal presented in this article shows that the social viability of ethanol production in Brazil will only became a reality with considerable increases in productivity and with international oil prices above US$ 30.00, factors which are only likely to come about at the end of the 1990s.
15 citations
TL;DR: REM sleep deprivation also potentiated the convulsions induced by nicotine and two hypothetical mechanisms through which REM sleep deprivation could lead to the described hyperresponsiveness to cholinomimetic drugs are discussed.
Abstract: The present work studied the effects of REM sleep deprivation on the responses to cholinomimetic drugs in rats. Cataleptic behavior induced by pilocarpine, oxotremorine and eserine was not modified by previous REM sleep deprivation. On the other hand, the intensity of oxotremorine- and eserine-induced tremors, but not that of pilocarpine, was clearly augmented in the REMd rats and latency to the first tremor was shorter. REM sleep deprivation also potentiated the convulsions induced by nicotine. Two hypothetical mechanisms through which REM sleep deprivation could lead to the described hyperresponsiveness to cholinomimetic drugs are discussed.
14 citations
Journal Article•
TL;DR: Data suggest the involvement of the lipoxygenase pathway in neurotransmitter release elicited by CNTX as occurs in the platelet, which is similar to that eliciting by 150 mM KCl.
Abstract: Canatoxin (CNTX), a neurotoxic protein, is known to activate platelet secretion and aggregation in vitro through a lipoxygenase-dependent pathway. This study shows that CNTX also induces time and dose-dependent serotonin secretion from rat brain synaptosomes. The secretory effect induced by 6 microM CNTX was similar to that elicited by 150 mM KCl. Nordihydroguaiaretic acid (500 microM) completely abolished CNTX-induced serotonin release while 150 microM indomethacin had no effect. These data suggest the involvement of the lipoxygenase pathway in neurotransmitter release elicited by CNTX as occurs in the platelet.
TL;DR: O estudo em questao inclui tanto as estruturas do neurocranio, quanto do esplancnocrânio, y discute-se a posicao filogenetica da especie estudada entre os PERCOIDEI.
Abstract: The osteology of the cephalic bones of young and adult fishes of Pachypops adspersus ( Steindachner) group is analised here, having in view the importance of these structural components on taxonomic, phylogenetic and evaluative interpretation of the TELEOSTEI. The present study includes the neurocranium and splancnocranium. With the obtained results, it is discussed the phylogenetic position the species studied among the PERCOIDEI.
TL;DR: O conhecimento mais amplo das caracteristicas morfo-anatomicas e evolutivas da especie e, por extensao, da propria familia a que pertence estrutura do complexo caudal de Pachypops adspersus (Steindachner).
Abstract: Com base em uma serie composta por individuso jovens e adultos, analisou-se a estrutura do complexo caudal de Pachypops adspersus (Steindachner). Os resultados obtidos nao apenas permitiram a confirmacao da posicao sistematica deste grupo de peixes nos graus taxonomicos de Super-Ordem (Acanthopterygii), Ordem (Perciformes), Sub-ordem (Percoidei) e Familia (Sciaenidae), como tambem o conhecimento mais amplo das caracteristicas morfo-anatomicas e evolutivas da especie e, por extensao, da propria familia a que pertence.
TL;DR: Discutiu-se a metodologia utilizada no desenho do questionario (Brazil Old Age Schedule - BOAS), o manual de instrucao and o livro de codigo, y foi dada enfase especial ao treinamento dos pesquisadores de campo.
Abstract: The increase of the elderly populations throughout the world has been investigated by many studies with a view to proving all the information necessary for the determination of policy and planning services. Steps to be taken in the preparation of questionnaires are discussed and common errors to be avoided are indicated. Differences in methodologies between community, mail and telephone surveys are also discussed. The BOAS (Brazil Old Age Schedule), questionnaire, which has been developed to survey the elderly population living in Rio de Janeiro is presented as also are its manual, code book and the method employed for the training of field-work researchers.
TL;DR: Esta nota descreve esse comportamento em alguns grupos de Amazona amazônica, A r a tinga leucophthalmus, Pionus fuscus, Pions menstruus e Brotogeris versicolurus na ilha da Mucura, localizada no rio Uaicurapá, Parintins, Amazonas.
Abstract: 0 comportamento de migração circadiana em PsitacTdeos tem sido relatado por diferentes autores (Forshaw, 1966; Forshaw, 1 9 7 3 ; Sick et al . , 1979; Sick, 198**, 1 9 8 5 ) . Con tudo os fatores que induzem e ou regulam este comportamento não são bem conhecidos. Forshaw (1966) narrou \"movimentações diárias\" do papagaio australiano Geoffroyus geoffroyi e indicou sua associação com a obtenção de alimento. Sick et al.(l979) relatam a realização de longos deslocamentos em busca de alimento ã partir de poleiros noturnos por Anodorhynchus lea ri . Esta nota descreve esse comportamento em alguns grupos de Amazona amazônica, A r a tinga leucophthalmus, Pionus fuscus, Pionus menstruus e Brotogeris versicolurus na ilha da Mucura (2°^7 1S e 56°^6'W), localizada no rio Uaicurapá, Parintins, Amazonas. As observações foram feitas em duas ocasiões (agosto e novembro de 1983) em que a ilha foi vl sitada por dois dias (cada vez) para levantamento da fauna e da flora do arquipélago.
TL;DR: In rats deprived of rapid eye movement sleep (REMd) for 3 days, through the watertank technique, chromodacryorrhea did not develop even when cholinergic agonists were given in doses severalfold higher than those active in non-REMd animals.
Abstract: Red tears (chromodacryorrhea) in rats are due to porphyrin pigments secreted by Harder’s glands and are believed to involve muscarinic mechanisms. Chromodacryorrhea was observed in rats treated with p
TL;DR: The enzyme inhibition achieved after 3 hr incubation of brain homogenates with ethyl-parathion have indicated that this enzyme shows a characteristic organophosphorous sensitive behavior.
Journal Article•
TL;DR: The frog palate mucosa was used as a new model for studying bacterial adherence to the respiratory epithelium and demonstrated that respiratory mucus plays a major role in bacteria-mucosa interactions.
Abstract: The frog palate mucosa was used as a new model for studying bacterial adherence to the respiratory epithelium. The main advantage of this model is that the mucus blanket, normally present on airway mucosa, can be preserved during the assays. The adherence of radiolabeled pneumococci to mucus-coated mucosa was five times higher (P less than 0.001) than the adherence to mucus-depleted mucosa. In the latter case, bacteria were never seen attached to ciliated cells but could be detected on small remaining patches of mucus. These results demonstrate that respiratory mucus plays a major role in bacteria-mucosa interactions.
TL;DR: A patient wrongly referred as a possible victim of thalidomide showed the three classical cardinal features of the EEC syndrome, plus severe mental retardation, an unusual finding in this condition.
Abstract: A patient wrongly referred as a possible victim of thalidomide showed the three classical cardinal features of the EEC syndrome, plus severe mental retardation, an unusual finding in this condition. His twin brother was similarly affected, and died at four months of age due to complications caused by the malformations. Their normal parents were first cousins. The concordance of the manifestation in the twins and the parents' consanguinity suggest that they had the recessive form of the EEC syndrome.
TL;DR: Mice infected with Plasmodium berghei showed significant pulmonary oedema, delayed activated partial thromboplastin time, augmented plasma fibrinolytic activity, oscillations in fibrinogen and unchanged plasminogen levels, which can be expected to cause the release of inflammatory peptides, leading to increased vascular permeability.
Abstract: Mice infected with Plasmodium berghei, during the ten days of infection, showed significant pulmonary oedema, delayed activated partial thromboplastin time, augmented plasma fibrinolytic activity, oscillations in fibrinogen and unchanged plasminogen levels. These alterations can be expected to cause the release of inflammatory peptides, leading to increased vascular permeability and the generation and/or maintenance of the pronounced pulmonary oedema affecting these animals.
01 Apr 1988
TL;DR: In this article, a reformulacoes propostas for o ensino medico nos ultimos anos introduziram poucas modificacoes na qualidade do profissional que se forma, e que e necessario uma discussao mais centrada no proprio metodo clinico, definicao de doenca, doente e tratamento for enriquecer a questao do ensino e apontar, com mais clareza, algumas diretrizes
Abstract: Resumo: As reformulacoes propostas para o ensino medico nos ultimos anos introduziram poucas modificacoes na qualidade do profissional que se forma. Sugere-se que as novas propostas se encontrem sempre vinculadas a discussoes sobre o tipo e o carater ideologico na pratica medica e que e necessario uma discussao mais centrada no proprio metodo clinico, definicao de doenca, doente e tratamento para enriquecer a questao do ensino e apontar, com mais clareza, algumas diretrizes. Afirma o autor, ainda, que a questao sobre o relacionamento saber - pratica medica esta presente nas reflexoes dos profissionais, mas que e necessario ampliar os debates na Universidade para que esta exerca o seu papel de reflexao e cn1ica sobre o conhecimento e a pratica decorrente.
TL;DR: Some characteristics exhibited by the cytotoxin as the morphological response induced on cells, the increasing of cytopathic effect with time, its irreversible cytocidal activity and its heat-lability resemble the properties described for E. coli Verotoxin.
Abstract: Estudamos 59 Escherichia coli uropatogenicas (ECUP) obtidas de pacientes com infeccao urinaria e 30 E. coli originarias das fezes de individuos normais. Cada amostra originou-se de um paciente ou controle. Verificamos que 44% e 3,3% respectivamente eram hemoliticas em meio solido segundo a origem. Apenas 15% das ECUP hemoliticas produziram alfa-hemolisina, isoladamente ou em associacao com s-hemolisina. A alfa-hemolisina correspondeu a 92% das amostras com atividade hemolitica. Nao encontramos correlacao entre titulos de alfa-hemolisina e o sitio de origem das ECUP (infeccao alta ou baixa). Em 71% das ECUP e 30% das E. coli fecais detectamos a producao de citotoxina com acao citocida para linhagens celulares epitelioides como Vero, He-La e Hep-2 e pouco ativa para fibroblastos de embriao de galinha. A producao desta citotoxina nao apresenta correlacao com a sintese de hemolisinas. Nao verificamos associacao entre titulos citotoxicos e origem das ECUP. Certas caracteristicas biologicas desta citotoxina como a resposta morfologica que determina nas celulas, o aumento dos titulos citotoxicos com o tempo, sua atividade citocida irreversivel e sua termolabilidade sugerem analogia com a Verotoxina (VT) de E. coli. As celulas afetadas pela citoxina inicialmente mostram aspecto estrelado, tornam-se arredondadas e finalmente desprendem-se do seu suporte. E sugerido que a producao de citotoxina por E. coli aderidas as mucosas do trato urinario possa contribuir para a agressao ao uroepitelio.
Journal Article•
Journal Article•
TL;DR: The results showed that the junctional AV region in M. fascicularis is approximately similr to the same region in the human heart, which is a subject for great controversies.
Abstract: The morphology of the atrioventricular (AV) junctional area is a subject for great controversies. The present work studies this region in 2 hearts of M. fascicularis adult female perfused with Bouin fluid, serial sectioned in frontal plane and stained by van Gieson trichromic method. A three-dimensional wax reconstruction of the AV specialized tissue was performed. The areas of the AV bundle and left bundle branch (LBB) cross-section were calculated by point-counting. The results showed that the junctional AV region in M. fascicularis is approximately similr to the same region in the human heart. The AV node presents compact and transitional portions. The cardiac central fibrous body is well developed and gives off an incomplete septum of connective tissue interposed between the terminal portion of the AV node and the beginning of the AV bundle. The reconstruction showed that the right bundle branch (RBB) is the direct continuation of the AV bundle while the LBB is a broad left side detachment. The average diameters of the AV bundle, LBB and RBB proved to be respectively 867.08 micron and 126.65 micron. The length and the volume of the AV bundle were respectively 406.86 micron and 0.223 mm3.
TL;DR: In this paper, a brief account of Costa Ribeiro Effect (CRE) and allied phenomena is given, intended to give a comprehensive and clear description of this effect and allied effects, and to be a guide to the study and literature of them to those that are interested in dielectric and organic semiconductors.
Journal Article•
TL;DR: The human cardiac growth was studied on 30 staged fetuses considering their weight and the following linear parameters: the pulmonary (da.p.) and aortic (dA) internal diameters, the right (VR) and left (VL) ventricular wall thickness, the ventricular width (dV), and the length "sulcus terminalis-apex cordis" (Lst-APEx).
Abstract: The human cardiac growth was studied on 30 staged fetuses (gestational age ranged from 10 to 38 weeks post conception, WPC). The hearts were quantitatively evaluated considering their weight and the following linear parameters: the pulmonary (da.p.) and aortic (dA) internal diameters, the right (VR) and left (VL) ventricular wall thickness, the ventricular width (dV), and the length "sulcus terminalis-apex cordis" (Lst-apex). The data were correlated with the gestational age by using the allometric method (Y = bX alpha). The equations and the growth curves are presented. In the fetal life, we observe that the body weight is 134 times larger than the heart weight, the Lst-apex is 1.07 times larger than the dV, the da.p. is 1.50 times larger than the dA, and the VL is 1.19 times larger than the VR.
TL;DR: In this article, Escherichia coli (E. coli) and E. coli Verotoxin (VT) were tested for hemolytic and cytotoxic activities in patients with upper or lower urinary tract infections (UTI).
Abstract: Fifty nine Escherichia coli strains obtained from patients with upper or lower urinary tract infections (UTI) and 30 E. coli strains isolated from stools of healthy individuals were tested for hemolytic and cytotoxic activities. Forty four percent of uropathogenic E. coli (UPEC) and 3.3% of fecal E. coli were hemolytic. Among the hemolytic UPEC, 92% produced alpha-hemolysin. A cytotoxic activity was detected in culture filtrates of 71% of UPEC strains and 30% of fecal E. coli. No relationship was found between cytotoxic and hemolytic activities or between cytotoxic titers and UPEC origin (upper or lower UTI). E. coli cytotoxin has a cytocidal activity against some epithelioid cultured cell lines (Vero, HeLa and Hep-2) but was almost inactive for avian-fibroblast cells. Cytotoxin-affected cells appeared rounded, refractile and detached from the surface of the vessel. Some characteristics exhibited by the cytotoxin as the morphological response induced on cells, the increasing of cytopathic effect with time, its irreversible cytocidal activity and its heat-lability resemble the properties described for E. coli Verotoxin (VT). Adherence to uroepithelial cells is recognized as a virulence factor for UPEC. It is suggested that cell damage by cytotoxic and adhering UPEC might contribute to E. coli virulence to urinary tract.
TL;DR: The skin lesions from 16 leprosy patients were studied by immunofluorescence technique using monoclonal antibodies against monocytes (OKM1 and Anti-Mo) and la-like antigen and acid phosphatase activity was evaluated using naphthol AS-BI phosphate as substrate.
Abstract: As lesoes cutâneas de 16 pacientes com hanseniase foram estudadas por imunofluorescencia com anticorpos monoclonais anti-monocitos (OKM1 e anti-MO) e anti-Ia (OKIa). Foi avaliada a atividade de fosfatase acida utilizando-se naftol AS-B1 fosfato como substrato. Os macrofagos parecem constituir uma populacao heterogenea em relacao aos antigenos estudados neste trabalho e quanto a atividade enzimatica. Em todas as formas estudadas um grande numero de celulas eram OKIa positivas.
TL;DR: O mesmo pode constituirse em importante subsidio for o desenvolvimento de novas pesquisas em nossa area por facilitar a avaliacao metodologica do produto cientifico e apoiar iniciantes em pesquisa as discussed by the authors.
Abstract: O objetivo do presente trabalho e apresentar um instrumento para identificacao do rigor cientifico em trabalhos e relatorios de pesquisa da linha positivista e relatar as principais etapas consideradas como necessarias para o desenvolvimento do mesmo Trata-se de um questionario tipo chek-list desenvolvido, testado e aplicado por um grupo de sete mestrandas que objetivava inicialmente, coletar dados referentes as caracteristicas gerais e as fases do processo de pesquisa utilizadas nas dissertacoes do Curso de Mestrado em Enfermagem da UFSC O marco teorico utilizado para a elaboracao do mesmo foi o Processo de Pesquisa de POLIT e HUNGLER Posteriormente, ao analisarmos a escassez de referencias relacionadas ao tema, os cuidados dispensados em todas as etapas de elaboracao do mesmo, bem como os indices encontrados nos testes de validade e confiabilidade a que o instrumento foi submetido, concluimos que o mesmo pode constituir-se em importante subsidio para o desenvolvimento de novas pesquisas em nossa area por facilitar a avaliacao metodologica do produto cientifico e por apoiar iniciantes em pesquisas, uma vez que o mesmo pode ser utilizado como um guia de como a pesquisa pode ser desenvolvida