Navegando por Orientadores "MONTEIRO, Maria Rita de Cassia Costa"

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Acesso aberto (Open Access)
Estudo clínico, morfológico e imuno-histoquímico de série de casos de tuberculose pleural e ganglionar
(Universidade Federal do Pará, 2011) LIMA, Edna Porfírio de; DEMACHKI, Samia; http://lattes.cnpq.br/7568391537270652; MONTEIRO, Maria Rita de Cassia Costa; http://lattes.cnpq.br/5536136455627983
The difficulty in definitive diagnosis of extra-pulmonary tuberculosis persists, mainly due to poor solutions available from conventional methods for detection of Mycobacterium tuberculosis. This study aimed to evaluate the contribution of immunohistochemical (IHC) for detection of Mycobacterium spp, in cases of pleural and lymph node tuberculosis with negative staining, as well as investigate some clinical, laboratory and morphological aspects of the disease. To obtain this sample was made in the pursuit of cases through surveillance (NVE) and Division of Medical Archives and Statistics (DAME), University Hospital João de Barros Barreto (HUJBB) and the Department of Pathology, University of Pará (UFPA), selecting those who had performed the histopathological examination for diagnosis of the case. Fifty patients were included, twenty-five with presumptive diagnosis of pleural tuberculosis and twenty-five of lymph node tuberculosis. To obtain the clinical and laboratory data were reviewed their medical records, and to confirm the morphological aspects review was performed of all selected slides. Thereafter, each sample was subjected to IHC with polyclonal Mycobacterium bovis BCG. It was found in the investigated group, more often male, whose average age was 33.8 years (SD: 14.1) with the majority coming from the city of Belem, Pará and education level of seven or fewer years of schooling. Constitutional symptoms more frequent in the whole group were fever and weight loss. In patients with pleural tuberculosis, the most frequent specific symptoms were cough, chest pain and dyspnea, and in those with lymph node involvement of the cervical alone was more frequent. Infection with human immunodeficiency virus (HIV) or Acquired Immune Deficiency Syndrome (AIDS) and alcohol consumption were the risk conditions most frequently associated. In pleural tuberculosis, 20% of cases presenting with pleural effusion associated with parenchymal injury, and 60% of the pleural fluid was exudate type. While in the lymph nodes in 50% of the cases revealed a parenchymal lesion on chest. This study was marginal participants in the amount of which has been held to direct research and culture for bacillus acid – resistant (AFB) in various clinical specimens analyzed (pleural fluid, pleural tissue and lymph node, sputum, and broncho-alveolar lavage). The predominant morphological pattern in both forms of the disease was tuberculous granulomas with caseous necrosis, regardless of serologic status for HIV. The IHC technique contributed to the diagnosis of pleural tuberculosis in 21% (4/19) samples of pleural tissue and 37.5% (9/24) of lymph node tissue. A positive immunohistochemical result defines the diagnosis of mycobacterial disease, and when associated with clinical, laboratory and morphological finds become a valuable tool to improve the diagnosis of extra-pulmonary tuberculosis.
Acesso aberto (Open Access)
Genotipagem do HIV-1 no Pará em pacientes experimentando falha terapêutica antirretroviral
(Universidade Federal do Pará, 2011) LOPES, Carmen Andréa Freitas; MONTEIRO, Maria Rita de Cassia Costa; http://lattes.cnpq.br/5536136455627983
Suppressive antiretroviral therapy significantly reduces morbidity and mortality related to HIV, but the emergence of resistant virus may limit the success of treatment. The objective of this study describe, in HIV / AIDS experiencing failure with antiretroviral therapy, in state of Pará, the prevalence of mutations in reverse transcriptase and protease enzymes of HIV-1 and correlate them to resistance to antiretrovirals. A descriptive, retrospective crosssectional data obtained in the Reference Unit Specialized in Special Infectious and Parasitic Diseases from Belem-Pará, profile of patients with laboratory evidence of treatment failure. This sample was represented by genotyping of fifty patients from January 2004 to December 2005. Inclusion criteria were: adherence to therapy prior to genotype, treatment failure, viral resistance profile to antiretroviral therapy and be patient of public health. We described the demographic population profile of antiretroviral therapy prior to genotyping, long known HIV infection, quantitative profile of CD4 + and viral load, in addition to genotype testing performed. The predominant resistance found in patients living in Belém (72%), males (90%) and aged 30 to 49 years old. The highest rates of mutations in reverse transcriptase of HIV-1 were: 214F (86%), 184V (76%), 215FY (56%), 211K (48%), 219QEN, 67N and 103N (42% each), 41L (32%), 70R (28%) and 210W (20%). In 46IL protease (38%), 90M (32%) and 82AFT (20%) were most prevalent among the major replacements and, among the secondary, 63P (74%), 93LM (52%), 10FIV (48%), and 35D (46%) predominated. Was attributed to selective pressures these mutations most commonly used antiretrovirals: 3TC, AZT, D4T, DDI, EFV, IDV, NFV, RTV and SQV. The use of multiple antiretroviral regimens, boosted the prevalence of these mutations, with an impact within the classes in which there was 32% complete resistance to one class, 22% two classes and 4% to three classes of antiretrovirals. We conclude that patients exposed to HAART only prior to genotyping compared to those exposed to more than one HAART had a lower prevalence of resistance to antiretrovirals, with the possibility of rescue therapy with antiretrovirals assets available at the time that was the minority however.
Acesso aberto (Open Access)
Marcadores ultra-sonográficos hepáticos em portadores assintomáticos do vírus da hepatite C, pré-doadores de sangue da Fundação HEMOPA, Belém-Pará
(Universidade Federal do Pará, 2003-12-29) MAGNO, José Emilio Campos; MONTEIRO, Maria Rita de Cassia Costa; http://lattes.cnpq.br/5536136455627983
ln order to evaluate the importance of the ultra-sonography, as an image diagnosis rnethod, in the detection of hepatics alterations in people who are symptomatics carrier of the hepatitis C vírus (HCV), this assay has studied people that are blood pre-donors of Fundação Hemopa, official reference hemocentre of Pará State, Brazil, between October and December of 2003,with the more important aims: to depict the hepatics markers of morphologics alterations; to find the frequency of thats alterations and to define the presence of association enter that’s morphologics alterations and the HCV infection. The assay has compared a central group - composed by 30 people HCV positive - and a control group - composed by 38 people HCV negative. Both of the research's groups were asymptomatic male and female with correct age to be blood donors. The donation selection have been done by the hemocentre, using their rotine proceeding. The paper has proceeded using pared people by sex and age. The groups have shown young age as most of all, wich is a normal hemocentre profile. Hepatomegaly, hiperecogenicity of the parenchyma have been the most found alteration in both research's groups, however without significative statistic difference. The increasing of the liver cell fatness is the way we can explain these alterations, reminding that the inflammation and the fibrotic components can increase this hiperecogenicity of the tiver parenquime. Heterogenicity, hipoecogenics focus, visibility alterations of some inside tiver veins and splenomegaly have been some other topics without significative statistic difference between the central and control groups. Significative statistic difference were found in the liver superfície marker and in the c1assification by pontuation, exactly as Lin's scores, about liver superficies, parenchyma, inside veins and spleen index. The total points has classified people from central and control groups in thin standard - 80% in central group and 100% in control group -; heterogenics - 13,3% in central group and 0% in control group -; and nodular - 6,7 % in central group and 0% in control group. There weren't found in both groups nodes, mass, ascitis, increasing of the portal and spleen veins and collateral circulation. The young age of blood donors people could have minimized the ecographics markers found, because of the chronics evolution tendence, slow and silent, of the VHC infection, with lately expressions of chronics hepatitis's morphologics alterations, cirrhosis and hepatocellular carcinoma.