Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 25 )

2018 ( 34 )

2017 ( 25 )

2016 ( 39 )

Custom range...

Search Results: 1 - 10 of 15007 matches for " Rogério Menezes;EDELWEISS "
All listed articles are free for downloading (OA Articles)
Page 1 /15007
Display every page Item
Prevalência de infec??o por Helicobacter pylori em crian?as avaliadas no Hospital de Clínicas de Porto Alegre, RS, Brasil
SOUSA, Marcelo Basso;LUZ, Letícia Perondi;MOREIRA, Daniel Martins;BACHA, Omar Moreira;CHULTZ, Rogério Menezes;EDELWEISS, Maria Isabel;
Arquivos de Gastroenterologia , 2001, DOI: 10.1590/S0004-28032001000200010
Abstract: objectives ? to determinate prevalence of helicobacter pylori infection in a group of symptomatic patients between 2 and 18 years old who were submitted to gastric biopsy during upper endoscopy done in the period of 1990-97. to correlate the histological findings with clinical and endoscopical data. methods ? a cross-sectional study done after review of clinical and histopathological data. histopathological sections were reviewed by a pathologist, who did not know the clinical information and the previous histopathological reports. results ? among 181 patients evaluated, prevalence of helicobacter pylori infection was 24.86% (45 positive cases). in pathological analysis, gastritis was found in 38/45 of the positive helicobacter pylori patients and in 45/136 negative helicobacter pylori. gastric ulceration was found in 6/45 positive helicobacter pylori and in 3/136 negative helicobacter pylori. conclusion ? this study stated a significative association between helicobacter pylori infection and pathological abnormalities in children evaluated in the "hospital de clínicas de porto alegre", rs, brazil.
Identifica??o de cultivares de trigo pelo teste de fenol
Menezes, Nilson Lemos de;Bellé, Rogério Antonio;
Ciência Rural , 1995, DOI: 10.1590/S0103-84781995000200025
Abstract: the phenol test is recommended for wheat cultivar identification and is based on the reaction of compounds present in the seeds pericarp. due to the constant reaction for each cultivar, the test may be used for a rapid and easy characterization of different reactions materiais. in this essay, the phenol reaction was determined in 42 brazilian wheat varieties aiming to facilitate its identification.
Press?o arterial de 24 horas em mulheres idosas normotensas e com hipertens?o do avental branco
Hekman, Paulo Rogério W.;Barbisan, Juarez N.;Menezes, Honório S.;Antonello, Vicente;
Arquivos Brasileiros de Cardiologia , 2010, DOI: 10.1590/S0066-782X2010005000010
Abstract: background: changes in the behavior of the circadian rhythm can be deleterious, leading to target-organ damage, which suggests that they can have a prognostic significance and, eventually, can also demand therapeutic intervention. objective: to describe and compare the circadian rhythms of blood pressure (bp) in normotensive elderly women and in those with white-coat hypertension (wch). methods: a cross-sectional study was carried out in sample of 36 patients, aged 60-83 years, submitted to ambulatory blood pressure monitoring (abpm) for a period of 24 hours. nineteen normotensive elderly women and 17 with whc were compared regarding the nocturnal dipping and the bp variability, morning increase in systolic blood pressure (sbp), pulse pressure, post-prandial hypotension and correlation of 24-hour bp means. the statistical analysis used the student's t test, chi-square test, fisher's exact test and pearson's linear correlation. results: the elderly women with wch presented higher levels of sbp than the normotensive ones, between 8 am-12 pm (133 ± 8.0 mmhg vs 123 ± 9.0 mmhg, respectively, p < 0.001). the bp variability was higher in the wch group only during the wakefulness period (between 7 am-11 pm, p = 0.02). a positive correlation was observed between the bmi and the sbp means at night, only in the elderly women with wch (r = 0.578; p = 0.015 and r = 0.488; p = 0.055, respectively). conclusion: the elderly women with wch presented higher sbp and diastolic blood pressure (dbp) means during the wakefulness period. in the early hours of the morning, the elderly women with wch presented significantly higher sbp means.
Modelo experimental de estenose traqueal mediante ressec??o cirúrgica submucosa de anéis traqueais combinada com instila??es de hidróxido de sódio
Saueressig, Maurício Guidi;Macedo Neto, Amarilio Vieira de;Espinel, Julio de Oliveira;Edelweiss, Maria Isabel;Sanches, Paulo Roberto Stefani;Xavier, Rogério Gastal;
Revista do Colégio Brasileiro de Cirurgi?es , 2011, DOI: 10.1590/S0100-69912011000600008
Abstract: objective: to experimentally develop tracheal stenosis and malacia to test new models of tracheal stents. methods: we resected three cartilaginous rings from the cervical trachea of dogs in group a (n = 5) and six rings in group b (n = 4) to produce malacia. the mucosa of the region with malacia then received applications of a solution of sodium hydroxide (naoh) at 23%, and the animals were accompanied with bronchoscopic examinations to observe the development of luminal narrowing of the airway. when the stenosis was of more than 50% or there were minimal signs of ventilatory failure, the animals were sacrificed. the segment of narrowed airway was then collected for histological analysis and calculation of the area of residual lumen in the tracheal segment with stenosis and malacia. results: in histological analysis, fibrosis was found in the submucosa and adventitia, associated with granulomas in the mucosa. the average residual lumen of the segments with stenosis was 9% and 12% in groups a and b, respectively (p> 0.05). conclusion: the combination of resection of the cartilaginous rings and the application of 23% naoh in the respiratory mucosa promoted severe tracheal stenosis, but was associated with loss of animals. further studies are needed to verify that the isolated use of one of the techniques would be safer and more effective to develop tracheal stenosis.
Compatibility of the fungus Beauveria Bassiana (Bals.) Vuill. (Deuteromycetes) with extracts of neem seeds and leaves and the emulsible oil
Depieri, Rogério A.;Martinez, Sueli S.;Menezes Jr., Ayres O.;
Neotropical Entomology , 2005, DOI: 10.1590/S1519-566X2005000400010
Abstract: the compatibility of a commercial formula of emulsible neem oil (azadirachta indica a. juss.) and of aqueous extracts of neem seeds and leaves with beauveria bassiana (bals.) vuill. was evaluated in vitro. three experiments were conducted to evaluate the effect of each product on the fungus vegetative growth and on conidia production and viability. the products were incorporated to a culture medium (bda+e) and distributed into petri dishes, in the following concentrations: 0.15%; 1.5% and 15% (leaf aqueous extract), 1%; 2% and 4% (seed aqueous extract) and 0.5%; 1% and 1.5% (emulsible oil). vegetative growth and conidia production were the basis for characterization of the aqueous extracts of seeds and leaves and of the emulsible oil, using the t classification model for compatibility of products. seed and leaf extracts were less harmful to b. bassiana than the emulsible oil. under the tested concentrations, the oil was not compatible with b. bassiana, inhibiting conidia vegetative growth significantly and decreasing production and viability of conidia, particularly at higher concentrations. neem seed and leaf extracts were compatible with the entomopathogen in all concentrations. the seed extracts reduced conidia vegetative growth and production, but it did not affect the viability of spores. leaf extract at 15% had a small negative impact on vegetative growth, and on production and viability of conidia, but it was still compatible with the fungus b. bassiana, according to the t model.
O papel dos exames de imagem na avalia??o da circula??o pulmonar
Hovnanian, André;Menezes, Eduardo;Hoette, Susana;Jardim, Carlos;Jasinowodolinski, Dany;Souza, Rogério;
Jornal Brasileiro de Pneumologia , 2011, DOI: 10.1590/S1806-37132011000300017
Abstract: knowledge of the structure and function of pulmonary circulation has evolved considerably in the last few decades. the use of non-invasive imaging techniques to assess the anatomy and function of the pulmonary vessels and heart has taken on added importance with the recent advent of novel therapies. imaging findings not only constitute a diagnostic tool but have also proven to be essential for prognosis and treatment follow-up. this article reviews the myriad of imaging methods currently available for the assessment of pulmonary circulation, from the simple chest x-ray to techniques that are more complex and promising, such as electrical impedance tomography
Trichurid nematodes in ring-necked pheasants from backyard flocks of the State of Rio de Janeiro, Brazil: frequency and pathology
Pinto, Roberto Magalh?es;Tortelly, Rogério;Menezes, Rodrigo Caldas;Gomes, Delir Corrêa;
Memórias do Instituto Oswaldo Cruz , 2004, DOI: 10.1590/S0074-02762004000700010
Abstract: the present investigation is related to the frequency of infection and to the gross and microscopic lesions associated to the presence of trichurid worms in 50 ring-necked pheasants (phasianus colchicus) from backyard flocks in the state of rio de janeiro, brazil. in the investigated birds, the overall infection rate was of 74%, with the presence of eucoleus perforans with 72% of prevalence and 21.2 of mean intensity, in the esophageal and crop mucosa and rarely in the junction of the proventriculus and esophagus, e. annulatus with 2% and 3 in the crop mucosa, capillaria phasianina, with 12% and 4.3 in the cecum and small intestine and baruscapillaria obsignata, for the first time referred in this host, with 2% and 1 in the small intestine. clinical signs were absent. the gross lesions observed in the crop and esophagus of 14 (38.9%) pheasants parasitized with e. perforans were thickening, small nodules, congestion, and petechial haemorrhages in the mucosa. these birds presented a mean infection of 37.5 and a range of infection of 10-82. the microscopic lesions revealed chronic esophagitis with diffuse inflammatory process in the lamina propria characterized mostly by a mononuclear cell infiltrate and also with the presence of granulocytes. in the case of the parasitism of pheasants with c. phasianina, the gross lesions were absent; microscopic lesions were characterized by chronic typhlitis with mononuclear infiltrate. gross and microscopic lesions were absent in the pheasants parasitized with e. annulatus and b. obsignata.
Pathology and first occurrence of the kidney trematode Paratanaisia bragai (Santos, 1934) Freitas, 1959 (Digenea: Eucotylidae) in Phasianus colchicus L., 1758, from Brazil
Gomes, Delir Corrêa;Menezes, Rodrigo Caldas;Tortelly, Rogério;Pinto, Roberto Magalh?es;
Memórias do Instituto Oswaldo Cruz , 2005, DOI: 10.1590/S0074-02762005000300013
Abstract: the kidney trematode paratanaisia bragai is reported for the first time parasitizing the ring-necked pheasant (phasianus colchicus l., 1758) and the pathological alterations associated to the parasitism are referred on the basis of 50 specimens of this bird from backyard flocks in 11 counties of the state of rio de janeiro, brazil after clinical examination, necropsies, and histopathological analysis. the counting of the kidney flukes was based on worms recovered from one of the kidneys, since the other was fixed in 10% formalin and then routinely processed for histopathological procedures. the prevalence of p. bragai was of 22%, with a mean intensity of 44.3, mean abundance of 9.7, and range of infection of 3-153. parasitized birds did not present with clinical signs and kidney gross lesions. microscopic lesions were mild and characterized by dilatation of the renal medullary collecting ducts, occasional flattening of the lining epithelium of the ducts and inflammatory reaction of variable intensity with granulocytes around the ureter branches and medullary collecting ducts. the severity and pattern of the microscopic lesions seem not to be associated to the size of the worm burden and could be related to the mechanic action of the parasites, without traumatism, in despite of the presence of the tegumentar spines in specimens of p. bragai.
Camallanus cotti Fujita, 1927 (Nematoda, Camallanoidea) in ornamental aquarium fishes: pathology and morphology
Menezes, Rodrigo Caldas;Tortelly, Rogério;Tortelly-Neto, Roberto;Noronha, Dely;Pinto, Roberto Magalh?es;
Memórias do Instituto Oswaldo Cruz , 2006, DOI: 10.1590/S0074-02762006000600018
Abstract: the pathology induced by the nematode camallanus cotti in the aquarium fishes beta splendens (beta fish) and poecilia reticulata (guppy) consisted of gross and microscopic lesions, the former characterized by abdominal swelling with reddish parasites protruding from the anus in both fish hosts and the latter, similar in the beta fishes and guppies, by hemorrhage, congestion, edema, a few glandular elements, and extensive erosion areas in the rectum mucosa, with a marked thickening of the wall and absence of inflammatory infiltrate. lesions were associated with the presence of several worms attached to the wall or free in the rectal lumen. this is the second reference of the parasite in brazil and the first report of pathological findings related to this nematode species that is also briefly redescribed and illustrated for the first time on the basis of brazilian samples.
First record in South America of Didymosulcus palati and Didymosulcus philobranchiarca (Digenea, Didymozoidae) with new hosts records and pathological alterations
Justo, Márcia Cristina Nascimento;Tortelly, Rogério;Menezes, Rodrigo Caldas;Kohn, Anna;
Memórias do Instituto Oswaldo Cruz , 2008, DOI: 10.1590/S0074-02762008000200014
Abstract: two species of didymozoidae, didymosulcus palati (yamaguti 1970) and didymosulcus philobranchiarca (yamaguti 1970) were reported for the first time in south america, atlantic ocean, parasitizing three different tuna species from the coast of rio de janeiro, brazil: thunnus atlanticus (lesson), thunnus albacares (bonnaterre) and thunnus obesus (lowe). pairs of d. philobranchiarca were found on gill arches of t. albacares and t. obesus, in longitudinal rows of yellow cysts located inside grooves in the hard denticle palate (new site) of the three hosts species studied, and as disperse groups of cysts in the operculum (new site) and gill arches of t. atlanticus (new host record). d. palati occurred as disperse groups of encysted worm pairs in the gill arches of t. albacares and t. obesus and in gill arches and operculum of t. atlanticus (new host record). the pathological alterations induced by d. philobranchiarca in the palate of t. atlanticus are described for the first time. original measurements and figures are presented.
Page 1 /15007
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.