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Search Results: 1 - 10 of 58103 matches for " Jaques Jean Oliveira;Cunha "
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Ultra-som terapêutico contínuo térmico em modelo experimental de ciatalgia
Ciena, Adriano Polican;Oliveira, Jaques Jean Junqueira;Cunha, Núbia Broetto;Bertolini, Gladson Ricardo Flor;
Fisioterapia e Pesquisa , 2009, DOI: 10.1590/S1809-29502009000200014
Abstract: therapeutic ultrasound is a physical therapy resource for relieving sciatic pain. the aim of this study was to assess the effectiveness of continuous therapeutic ultrasound in two different power densities (0,5 w/cm2 and 1 w/cm2), on reducing pain in rats submitted to a sciatica experimental model. twenty rats were used, divided into 3 groups: g1 (n=6) submitted to sciatica and placebo treatment; g2 (n=7) submitted to sciatica and treated with 0.5 w/cm2 ultrasound; and g3 (n=7), submitted to sciatica and treated with 1 w/cm2 ultrasound. sciatica was provoked by surgical nerve compression on the right posterior limb of all animals. treatment on the surgical procedure region consisted in ten daily 5-minute sessions, starting on the 3rd postoperative day. pain was inferred by the time of paw elevation (tpe) during gait, measured before the surgery and on five further moments. results showed tpe increase in all groups after surgery; but in both groups actually treated with ultrasound a significant tep decrease was noticed, practically reaching initial values, the decrease being more precocious and intense in g2. continuous ultrasound such as was delivered was hence effective in reducing sciatic pain.
Aplica??o do laser 808nm na dor articular cr?nica de ratos Wistar
Bertolini, Gladson Ricardo Flor;Ciena, Adriano Polican;Silva, Taciane Stein da;Junqueira, Jaques Jean Oliveira;Cunha, Núbia Broetto;
Revista Brasileira de Medicina do Esporte , 2009, DOI: 10.1590/S1517-86922009000500006
Abstract: during the inflammatory process some kinds of cells are predominant and are involved with pain production. low power laser seems to be useful in the control of inflammatory mediators, but wide divergence in the dosemetric parameters leads to variations in its positive results. the aim of this study was to assess the use of the 808nm laser in the chronic joint pain and edema of wistar rats submitted to synovitis. sample was composed of 10 wistar rats divided in two groups: cg - synovitis induction on right knee and placebo treatment; tg - synovitis induction and irradiated with 10j/cm2 laser. 100μl of 5% phormaline were injected in the right tibiofemoral joint space. pain assessment occurred by the time of paw elevation (tpe). on the 10th day after synovitis induction, laser treatment began on the knee medial joint surface and this procedure was kept for 10 days. the outcomes showed that laser presented analgesic effects, since significant reduction of the tpe values was observed for the treated group, hence indicating pain reduction when compared with the pre-treatment values; the same situation did not occur to the group which received the placebo treatment. concerning edema, laser has also shown significant reduction. it can be concluded that laser 808nm with 10j/cm2 is efficient in reduction of chronic joint pain and edema in animals submitted to experimental synovitis.
Avalia??o imediata da dor e edema em les?o muscular induzida por formalina e tratada com laser 808 nm
Borato, Emerson;Oliveira, Jaques Jean Junqueira;Ciena, Adriano Polican;Bertolini, Gladson Ricardo Flor;
Revista Brasileira de Medicina do Esporte , 2008, DOI: 10.1590/S1517-86922008000500009
Abstract: low-level laser therapy induces to cellular bioestimulation and can accelerate wound healing, promote skeletal muscle regeneration, decrease inflammatory response, stimulate neovascularization and decrease pain. the aim of this study was to analyze the effects of three doses of low-level laser therapy (808 nm), in the immediate pain and edema, in rats submitted to experimental injury of the lateral gastrocnemius muscle. twenty four wistar rats, randomly distributed in the following four groups were used: cg - injured and treated with equipment turned off (sham); g20 - injured and treated with 20 j/cm2; g50 - injured and treated with 50 j/cm2; and g100 - injured and treated with 100 j/cm2. for the experimental injury production, 0.1 ml of formalin 5% was introduced in the right lateral gastrocnemius muscle girth. pain was assessed through the paw elevation time (pet), and edema was assessed with a metallic caliper. both evaluations happened before injury, after injury, after treatment, 2, 8 and 24 hours after injury. the results showed significant increase of pet and of the caliper evaluation after injury induction. it has been concluded that the laser irradiation in the used parameters did not produce pain and edema decrease in rats submitted to muscular injury with formalin 5% injection.
Rea??o anafilática induzida por látex em paciente submetido à apendicectomia aberta: relato de caso
Machado, Jean Abreu;Cunha, Romilton Crozetta da;Oliveira, Benhur Heleno de;Silva, Jane da;
Revista Brasileira de Anestesiologia , 2011, DOI: 10.1590/S0034-70942011000300012
Abstract: background and objective: despite the increase of latex allergy in general population, severe anaphylactic events during some surgical procedures are still rare; however, they are associated with increased morbidity and mortality. prevention, diagnosis, treatment, and follow-up of patients affected by this event represent a challenge for anesthesiologists. the objective of this report was to describe a case of severe latex-induced anaphylactic reaction and discuss its diagnosis and treatment. case report: this is a 39-year-old caucasian female patient, with a diagnostic suspicion of appendicitis, who underwent an emergency surgery under spinal anesthesia. approximately 30 minutes after beginning the surgery, the patient developed an anaphylactic reaction with cardiorespiratory arrest, which was reversed after treatment. possible causative agents were isolated and, posteriorly, the patient was transferred to the intensive care unit, evolving without sequelae. latex-specific ige-rast (radioallergosorbent test) was positive. the patient was referred to an allergist for follow-up. conclusions: anesthesiologists should focus on patient's history, even in urgent procedures, being aware of the limitations arising on these situations. the prognosis of anaphylaxis depends on prompt initiation of adequate treatment; diagnosis is not limited to the event occasion, but to the determination of the causative factor. creating the means of following-up these patients, similar to other international centers, seems to be the example to be followed.
Hierarchy of Multipolar Terms For Non Relativistic Moving Atoms in QED
Abdelbasset Felhi,Jean-Claude Guillot,Jaques Robert
Physics , 2003,
Abstract: In this article an hierarchy of terms in the expansion of the multipolar Hamiltonian for non relativistic moving atoms in QED is considered. The particular case of neutral composite systems of 2,3 and 4 particles is considered. The proposed hierarchy is based on a scaling analysis of the multipolar Hamiltonian together with a multipolar expansion of the coupling terms. We give explicit results up to the fourth order in the fine structure constant.
Infectious endocarditis from Streptococcus bovis associated with colonic carcinoma: case report and literature review
Waisberg, Jaques;Matheus, Cláudio de Oliveira;Pimenta, Jo?o;
Arquivos de Gastroenterologia , 2002, DOI: 10.1590/S0004-28032002000300008
Abstract: background: many studies in the literature have warned of the need for investigation of colonic lesions among patients, especially elderly ones, who have bacteremia and/or endocarditis from streptococcus bovis. bacteremia and infectious endocarditis from streptococcus bovis may be related to the presence of neoplastic lesions in the large intestine and hepatic disease. aim: this report describes a patient who presented infectious endocarditis from streptococcus bovis associated with colonic carcinoma and tubular-villous adenomas. conclusions: the finding of this bacterium among patients with septicemia and/or endocarditis is also related to the presence of villous or tubular-villous adenomas in the large intestine. for this reason, complete and detailed investigation of the large intestine must be performed in patients with infectious endocarditis, even in the absence of intestinal symptoms. an increased incidence of this condition or hepatic dysfunction has been reported among patients with infectious endocarditis from streptococcus bovis. patients with infectious endocarditis from streptococcus bovis and normal colonoscopy may be included in the group at risk for developing colonic cancer. the knowledge that there is an association between endocarditis from streptococcus bovis and carcinoma of the colon has important clinical implications. if the lesion can be discovered at an early stage, curative resection may become possible.
Infectious endocarditis from Streptococcus bovis associated with colonic carcinoma: case report and literature review
Waisberg Jaques,Matheus Cláudio de Oliveira,Pimenta Jo?o
Arquivos de Gastroenterologia , 2002,
Abstract: BACKGROUND: Many studies in the literature have warned of the need for investigation of colonic lesions among patients, especially elderly ones, who have bacteremia and/or endocarditis from Streptococcus bovis. Bacteremia and infectious endocarditis from Streptococcus bovis may be related to the presence of neoplastic lesions in the large intestine and hepatic disease. AIM: This report describes a patient who presented infectious endocarditis from Streptococcus bovis associated with colonic carcinoma and tubular-villous adenomas. CONCLUSIONS: The finding of this bacterium among patients with septicemia and/or endocarditis is also related to the presence of villous or tubular-villous adenomas in the large intestine. For this reason, complete and detailed investigation of the large intestine must be performed in patients with infectious endocarditis, even in the absence of intestinal symptoms. An increased incidence of this condition or hepatic dysfunction has been reported among patients with infectious endocarditis from Streptococcus bovis. Patients with infectious endocarditis from Streptococcus bovis and normal colonoscopy may be included in the group at risk for developing colonic cancer. The knowledge that there is an association between endocarditis from Streptococcus bovis and carcinoma of the colon has important clinical implications. If the lesion can be discovered at an early stage, curative resection may become possible.
Bacterial biofilms with emphasis on coagulase-negative staphylococci
Oliveira, A;Cunha, MLRS;
Journal of Venomous Animals and Toxins including Tropical Diseases , 2008, DOI: 10.1590/S1678-91992008000400003
Abstract: in addition to their capacity to attach to surfaces, various groups of microorganisms also produce an extracellular polymeric substance known as "slime". this slime forms a thin layer around cells known as biofilm. thus, biofilm structure comprises bacterial cells and an extracellular polymeric substance. it also presents a defined architecture, providing the microorganisms with an excellent protective environment and favoring the exchange of genetic material between cells as well as intercellular communication. the ability to produce biofilm is observed in a large group of bacteria, including coagulase-negative staphylococci (cns) which are the predominant microorganisms of normal skin flora and have been implicated as the causative agents of hospital infections. bacteremia caused by these agents is common in immunodepressed persons, in patients with cancer, in adult and neonatal intensive care units (icu) and in patients using catheters or other prosthetic devices. the pathogenicity of cns infections is probably related to the production of slime, which adheres preferentially to plastic and smooth surfaces, forming a biofilm that protects against attacks from the immune system and against antibiotic treatment, a fact hindering the eradication of these infections. the main objective of the present review was to describe basic and genetic aspects of biofilm formation and methods for its detection, with emphasis on biofilm creation by cns and its relationship with diseases caused by these microorganisms which are becoming increasingly more frequent in the hospital environment.
A leitura oral na escola do mundo contemporaneo: uma prática marginal ou inexistente?
Adriana Cunha de Oliveira
Revista Brasileira de Linguística Aplicada , 2003,
Abstract: Este trabalho investigou se a leitura em voz alta ou oral é uma prática marginal ou inexistente nos primeiros anos de escolariza o do Ensino Fundamental em duas escolas municipais de Belo Horizonte. Para tanto, os professores, sujeitos da pesquisa, foram submetidos a um pequeno teste, em que, em um quadro, deveriam relacionar como trabalhavam a leitura em sala de aula. Os resultados evidenciaram, pois, que a leitura em voz alta ou oral é uma prática freqüente nos primeiros anos de escolariza o. Contrariamente ao que se pensava, revelaram que essa prática é o "carro-chefe" do trabalho dos professores com leitura em sala de aula, pelo menos, até a 4a série. Em vista dos resultados, relacionamos e discutimos algumas hipóteses que pudessem justificá-los, assim como analisamos a concep o de leitura que permeia a prática de leitura dos docentes nas duas escolas investigadas. This study investigates whether reading aloud or oral reading is either an off stream or a nonexistent practice in the first years of the primary school in two municipal schools of Belo Horizonte. In order to do that, the teachers, participants of this research, were asked to do a little test: they had to list on a table how they used to teach reading in class. The results showed that reading aloud or oral reading is a frequent practice in the first years of school. Contrary to what we had thought, it was revealed that this practice is the mainstream of reading teaching in class, at least, until the fourth grade. Considering the results, we listed and discussed some hypothesis that could justify the results, and also we analyzed the concept of reading underlying the reading teaching of the participants of the two investigated schools.
Dengue Virus Activates Membrane TRAIL Relocalization and IFN-α Production by Human Plasmacytoid Dendritic Cells In Vitro and In Vivo
Mariana Gandini,Christophe Gras,Elzinandes Leal Azeredo,Luzia Maria de Oliveira Pinto,Nika?a Smith,Philippe Despres,Rivaldo Venancio da Cunha,Luiz José de Souza,Claire Fernandes Kubelka equal contributor,Jean-Philippe Herbeuval equal contributor
PLOS Neglected Tropical Diseases , 2013, DOI: 10.1371/journal.pntd.0002257
Abstract: Background Dengue displays a broad spectrum of clinical manifestations that may vary from asymptomatic to severe and even fatal features. Plasma leakage/hemorrhages can be caused by a cytokine storm induced by monocytes and dendritic cells during dengue virus (DENV) replication. Plasmacytoid dendritic cells (pDCs) are innate immune cells and in response to virus exposure secrete IFN-α and express membrane TRAIL (mTRAIL). We aimed to characterize pDC activation in dengue patients and their function under DENV-2 stimulation in vitro. Methods & Findings Flow cytometry analysis (FCA) revealed that pDCs of mild dengue patients exhibit significantly higher frequencies of mTRAIL compared to severe cases or healthy controls. Plasma levels of IFN-α and soluble TRAIL are increased in mild compared to severe dengue patients, positively correlating with pDC activation. FCA experiments showed that in vitro exposure to DENV-2 induced mTRAIL expression on pDC. Furthermore, three dimension microscopy highlighted that TRAIL was relocalized from intracellular compartment to plasma membrane. Chloroquine treatment inhibited DENV-2-induced mTRAIL relocalization and IFN-α production by pDC. Endosomal viral degradation blockade by chloroquine allowed viral antigens detection inside pDCs. All those data are in favor of endocytosis pathway activation by DENV-2 in pDC. Coculture of pDC/DENV-2-infected monocytes revealed a dramatic decrease of antigen detection by FCA. This viral antigens reduction in monocytes was also observed after exogenous IFN-α treatment. Thus, pDC effect on viral load reduction was mainly dependent on IFN-α production Conclusions This investigation characterizes, during DENV-2 infection, activation of pDCs in vivo and their antiviral role in vitro. Thus, we propose TRAIL-expressing pDCs may have an important role in the outcome of disease.
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