Navegando por CNPq "CNPQ::CIENCIAS BIOLOGICAS::PARASITOLOGIA::HELMINTOLOGIA DE PARASITOS"

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Acesso aberto (Open Access)
Análise espacial das condições ecoepidemiológicas para estabelecimento da Esquistossomose mansonica em duas áreas do Distrito de Mosqueiro, Belém-PA
(Universidade Federal do Pará, 2012) PEREIRA, Alba Lúcia Ribeiro Raithy; GONÇALVES, Nelson Veiga; http://lattes.cnpq.br/8811269146444725; BICHARA, Cléa Nazaré Carneiro; http://lattes.cnpq.br/2161704040280760
The dynamics process of Mansonic Schitomiasis endemization is multifactorial, which sometimes retards it’s installation process, but also difficult the control of epidemiological surveillance. The Geo-technologies have brought contributions to the public health, creating thematic maps that make easier understand of dynamic population at space used, and their interrelationship with the water resources and with the sickness process. The proposal of this work was to identify through spatial analysis the eco-epidemiological factors related with the Mansonic Schitosomiasis endemization. It was achieved a descriptive study in two coverage areas from Family Health Strategy, Carananduba and Furo das Marinhas, In Mosqueiro District, Belém-PA, between 2010 and 2012, using geoprocessing Techniques like: Remote Sensing and Geographic Information Systems (GIS), through the tools: ERDAS 8.3.1 and ENVI 4.5, for classification of these satellites images, with the variables: Soil, vegetation cover and hydrography; The Global Positioning System (GPS) for georreferencing at study area and capturing collecting points of breeding sites; and ARCGIS 9.3.1 for manipulation and teatring of the Geographic Data Banks and Kernel estimation for identification of risk zones about high resolution satellite images and cartographic bases. Were analyzed, also, environmental and ecological data through geoprocessing techniques. The geo-technologic tools producing thematic maps of Family Health Strategic abrangency, the work routes, environmental classification, and the localization of breeding sites that generating seven agglomerated Kernel points that identified the risk zones of transmission aggravating in 3 boroughs of Carananduba Zone. This zone has been presenting antrophic characteristics due disordered human occupation and hydro siltation collections. The Furo das Marinhas area still keeps native forest and great quantity of hydro collections yet and not being found Biomphilaria. In both studied areas the structure of sanitation is insufficient, and isn’t still there focus active of transmission from Mansonic Schitosomiasis. However, could be a great vulnerability in a short time to happen this incidence at Caranaduba area. So, the geo-technologies applied have enabling a geographic information system that made feasible the diagnostic of risk on the process of Mansonic Schitosomiasis Endemization in more than one location in Para.
Acesso aberto (Open Access)
Análise taxonômica e molecular de Cestoda nematotaeniidae parasito de intestino delgado de Rhinella marina (Linnaeus, 1758) (Amphibia: Bufonidae) de Belém-Pa
(Universidade Federal do Pará, 2010-07-02) MELO, Francisco Tiago de Vasconcelos; SANTOS, Jeannie Nascimento dos; http://lattes.cnpq.br/4543897195525368
The amphibians of the species Rhinella marina known also as Giant Toad and have cosmopolitan distribution. Posses nocturnes habits, due of variety of feeding they can live in different habitats. Then, they can have many kinds of helminthes parasites. Among the helminthes, the cestodas are the target of study of this work. The members of Nematotaeniidae Family are commonly found in small intestine of repitilian and amphibians. The frequent auto-infestation would justify the high taxes of parasitism in one host. The present study has the objective to identify and to characterize the Cestoda of Rhinella marina from Belém-PA. Twenty hosts were captured in homes of the metropolitan area of Belém-PA and, after necropsy the Cestoda were isolated of intestine, and some specimens were fixed in A.F.A (Glacial Acid Acetic 2%, Formaldehyde 3% and 95 % of Etanol 70º GL), and some worms fixed in 2% Glutaraldehyde in Cacodilate buffer 0,1m P.h 7,4, to process in different techniques. One part of the samples was dehydrated in Etanol Series, and stained with Carmim®, and clarified with Metil Salicilate®. Some specimens were dehydrated and included in Paraffin for acomplishement of longitudinal and tranverse cuts. The worms fixed in Glutaraldehyde were dehydrated and included in Historesin®. Some Cestoda were processed for Scanning Electron Microscopy (SEM). An indentification was accomplished throught drawings in Olympus BX 41 microscope equipped with camera lucida, pictures were taken in a MEDILUX microscope, with image captures system and in MEV JEOL 5310. Histological sections were photographed and 3D reconstruction was made in RECONSTRUCTTM software. The cestoid possess a cylindrical body, filiform and with difficult segmentation, except in the final portion of the strobila. Escolex with four suckers without hooks or apical organ, the pregnant proglotis presents two piriform capsules, funded in the basis and containing one or more eggs. The observations in SEM and light microscopy of the cestoda founded in small intestine of R.marina from Belém-PA, we observed that these Cestoda belong to Nematotaeniidae Family, meanwhile the other morphologic characters observed did not permit us to classify this helminth in any Gender of this Family.
Acesso aberto (Open Access)
Diagnóstico coproparasitológico e avaliação dos fatores de risco para infecção parasitária intestinal em uma comunidade ribeirinha do município de Belém-Pará, Brasil
(Universidade Federal do Pará, 2005-05-19) ESTEVES, Nelma Maria Rosa de Sousa; PÓVOA, Marinete Marins; http://lattes.cnpq.br/2256328599939923
The intestinal parasitosis are the most frequent diseases that infect the men, maily in undeveloped or on development countries, where, in general, the sanitation system do not exist or is under very bad condition. This study aims to determine the prevalence and identify the risk factors of each enteroparasitosis, on the population of the community of Jutuba Island, Belém city, Pará state. We had tested 109 stool samples using the following methods: direct and spontaneous sedimentation. He total prevalence found was 77,89% (85/109). Among the protozoas, the Entamoeba histolytica (49,41%) and among the helmints the ancilostomides (40%), Ascaris lumbricoides (29,41) and Trichiuris trichiura (24,71%) were the most frequent parasites. There was no statistical sigfnificance between parasitism and sex. The correlation between the parasitism by Giardia lamblia and age was significant (p < 0,05) for the children groups. The risk factors more important for the parasitic diseases for the population of Jutuba Island were the low lever of the economical situation, the lack of sanitation system, the intake of river water without any previous treatment and the intake of açaí juice in natura. The correlation between untreated water and intestinal parasitosis was no statistical significant. The odd rates index had showed that the açaí intake raises the chance of parasitism among the Jutuba Island population it is very important the action of the healthy authorities in order to provide to them the sanitary education since this is an important factor to help to control the parasitism reducing the prevalence of each parasite.