Navegando por Assunto "Meningoencefalite"

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Acesso aberto (Open Access)
Brazilian Angiostrongylus cantonensis haplotypes, ac8 and ac9, have two different biological and morphological profiles
(2014-12) MONTE, Tainá Carneiro de Castro; GENTILE, Rosana; GARCIA, Juberlan Silva; MOTA, Ester Maria; SANTOS, Jeannie Nascimento dos; MALDONADO JUNIOR, Arnaldo
Angiostrongylus cantonensis is the etiologic agent of eosinophilic meningoencephalitis in humans. Cases have been recorded in many parts of the world, including Brazil. The aim of this study was to compare the differences in the biology and morphology of two different Brazilian haplotypes of A. : ac8 and ac9. A significantly larger number of L1 larvae eliminated in the faeces of rodents at the beginning of the patent period was observed for ac9 haplotype and compared to the total of L1 larvae eliminated, there was a significant difference between the two haplotypes. The ac9 haplotype showed a significant difference in the proportion of female and male specimens (0.6:1), but the same was not observed for ac8 (1.2:1). The morphometric analysis showed that male and female specimens isolated from ac8 haplotype were significantly larger with respect to body length, oesophagus length, spicule length (male) and distance from the anus to the rear end (female) compared to specimens from ac9. The morphological analysis by light microscopy showed little variation in the level of bifurcations at the lateral rays in the right lobe of the copulatory bursa between the two haplotypes. The biological, morphological and morphometric variations observed between the two haplotypes agree with the observed variation at the molecular level using the cytochrome oxidase subunit I marker and reinforce the possible influence of geographical isolation on the development of these haplotypes.
Acesso aberto (Open Access)
Fatores prognósticos de letalidade na meningoencefalite criptocócica em crianças e adolescentes no estado do Pará
(Universidade Federal do Pará, 2016) CARNEIRO, Rose Sheyla Rodrigues; SOUSA, Rita Catarina Medeiros; http://lattes.cnpq.br/3560941703812539; RODRIGUES, Anderson Raiol; http://lattes.cnpq.br/4030747999301402
Introduction: Cryptococcosis is a systemic fungal infection that often affects adults, especially those who have an alteration in their cellular immunity. Its frequency in children is low. Objective: to describe the clinical, epidemiological, radiological and laboratorial profile of children with meningitis cryptococcal, and to evaluate what are the circumstances that affect the evolution of these patients and increase the fatality rates of the disease. Materials and methods: we performed a retrospective review of medical records in which we evaluated the prognostic factors of 62 children less than 16 years old, diagnosed with cryptococcal meningoencephalitis, admitted in the at João de Barros Barreto Hospital, reference for patients with infectious diseases in Belém-PA, from 1999-2013. Results: Ages ranged from less than 4 to 15 years. The average age was 10 and 66% were male. The Para state microregions, presented by order of decreasing frequency, showed: Cametá (29%), Guamá (12,9%), Belém (12,9%), Tomé-Açu (11,3%), Bragantina (9,7%) and others (39%). The predominant clinical presentation was the subacute form, represented by 50% of the cases. The most frequent clinical manifestations were headache (98,4%), fever (91,9%) and vomiting (88,7%). A skull tomography was performed in 54 patients, and abnormalities were reported in 43 (79,6%). Hydrocephalus was described in 27 cases. Cryptococcus gattii was the main agent involved, identified in 35 children (71,4%). In total, 91,9% of the patients were treated with amphotecicin B (AmB) alone. Conclusions: Rate of lethality from 19,3%; Seizure was a prognostic factor of lethality. In the State of Pará, where cryptococcosis by Cryptococcus gattii is endemic, the disease in children is relatively frequent. However, studies in this population are still scarce and there are no own management guides. New studies are needed to improve the management of children by this fungal infection.