Mestrado em Medicina Tropical e Saúde Pública (IPTSP)
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Navegando Mestrado em Medicina Tropical e Saúde Pública (IPTSP) por Por Orientador "Avelino, Mariza Martins"
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Item Valor do teste de avidez da IgG como marcador de doença aguda ou crônica e de transmissão vertical na toxoplasmose(Universidade Federal de Goiás, 2009-06-26) Alvarenga, Fernanda Rassi; Avelino, Mariza Martins; http://lattes.cnpq.br/7890944202988947Toxoplasmosis is a parasitic disease widespread around the world caused by Toxoplasma gondii. Infection acquired during pregnancy may cause intrauterine damage and sequelae in the newborn. Serological testing for IgG/IgM anti-Toxoplasma antibodies may fail to differentiate between recent and past infection. Despite that, rapid diagnosis of acute infection during pregnancy allows rapid treatment and prevents or attenuates congenital toxoplasmosis. PURPOSE: to establish the frequency of acute toxoplasmosis in pregnant women, the vertical transmission rate and the value of specific IgG-avidity test to date infection in pregnancy; to evaluate the relationship between IgG-avidity and congenital toxoplasmosis. MATERIAL AND METHODS: this report summarizes a retrospective study performed on 235,993 pregnant women attended by “The Pregnancy Protection Program” – public health system (SUS) of the State of Goiás – Brazil, from January 2004 to December 2007. ELISA (IgG / IgM) and IgG-avidity test were performed for maternal screening of toxoplasmosis. Fetal and newborn investigation of the infection was performed by “The Toxoplasmosis Vertical Transmission Control Program” protocols. The association between data was statistically analyzed by the x2 test (p < 0,05 was considered statistically significant). RESULTS: the frequency of IgM-positive among pregnant women studied population was 0,7%. Among IgM-positive women, only 207 (12,5%) performed the screening test in first 3-month period of pregnancy and 91% of pregnant women presented high avidity ( > 40%). The vertical transmission rate was 62%. There was no statistically significant relationship between higher (> 40%) or lower (≤ 25%) IgG-avidity test and presence of congenital infection (p= 0,08 e p= 0,57, respectively). There was no statistically significant association between maternal diagnosis in first trimester, low avidity and vertical transmission rate. CONCLUSIONS: the frequency of IgM-positive in pregnant women was lower than Brazilian rates founded in other studies. The study showed high persistent vertical transmission rate besides prenatal management and treatment. The IgG-avidity was not useful to predict vertical transmission. These results indicate that the IgG-avidity test must be not carried out in all IgM-positive pregnant women in the State of Goiás-Brazil, as a confirmatory test for the diagnosis of maternal toxoplasmosis.Item “Estudo coorte de filhos de gestantes agudamente infectadas pelo Toxoplasma gondii acompanhadas em dois Centros de Referência em Goiânia”(Universidade Federal de Goiás, 2006-12-19) Gomes, Maria Bárbara Franco; Avelino, Mariza Martins; http://lattes.cnpq.br/7890944202988947(sem resumo em outro idioma)Item Avaliação da soroprevalência do Parvovírus B19 em mulheres em idade fértil no município de Goiânia(Universidade Federal de Goiás, 2008-08-28) Rios, Washington Luiz Ferreira; Castro, Ana Maria de; http://lattes.cnpq.br/9232309971000621; Avelino, Mariza Martins; http://lattes.cnpq.br/7890944202988947; Avelino, Mariza Martins; Souza, Juarez Antônio de; Almeida Netto, Joaquim Caetano deThe goal of this study was to evaluate the prevalence of specific IgG antibodies against PB19 virus, which identify previous immunity, and IgM antibodies, characteristic of acute infection, in women of childbearing age in Goiânia, a capital city in the Midwestern Region of Brazil. To achieve this, 101 serum samples collected from health women identified via prenatal care services, birth control groups, communitarian work groups, and public night schools near Public Health Units were tested. The samples were stored in the section of Parasitology of the Tropical Pathology and Public Health Institute of the Federal University of Goiás (IPTSP/UFG) and were tested using ELISA (IgM and IgG) against parvovirus B19. The women were evaluated according to several aspects (economic, social, cultural, age, marital status, previous blood transfusion, pregnancy evolution, among others). The statistical tests used were variance analysis, 2 , and multivariance analysis (logistic regression). The results showed that the population analyzed was young, poor, presented low level of formal education, underwent regular prenatal care exams (in terms of number of attendances), and lived in brick houses with few rooms and many inhabitants, with a regular sanitation system. Prevalence of previous PB19 infection was the lowest found in the literature available (8.9%), average prevalence detected was 60%, and acute infection was 26.7%, similar to the one found in periods of epidemics. Furthermore, 25% of the acutely infected women were pregnant during the sample collection, which represented a risk of vertical transmission.