Abstract:
:The snail density, levels of infection and the monthly production of Schistosoma mansoni cercariae by Biomphalaria glabrata were determined in a focus of Barreiro de Baixo (Belo Horizonte, MG, Brazil). During a period of 38 months (1984 to 1987) 5,366 snails were collected of which 324 (6.03%) were infected with S. mansoni. The total number of cercariae shed was 5,667,312. Each snail shed an average of 17,422 cercariae during the time that it was under study in the laboratory. The greatest longevity of infected snails was 218 days. Natural cure was observed in 42 (12.9%) of the infected specimens about 130 days after collection. The average snail density in the focus during the period of study was 16.3 snails per scoop. The shedding of cercariae by snails collected from the field was compared with laboratory bred specimens infected in mass with the LE strain of S. mansoni from Belo Horizonte. The laboratory infected snails shed an average of 6,061 cercariae each, a value 2.8 times less than the field specimens due to a shorter life span. The prevalence of schistosomiasis in the focus was 14.3%.
journal_name
Rev Inst Med Trop Sao Paulojournal_title
Revista do Instituto de Medicina Tropical de Sao Pauloauthors
de Souza CP,Araújo N,Jannotti-Passos LK,Guimarães CTdoi
10.1590/s0036-46651994000600002subject
Has Abstractpub_date
1994-11-01 00:00:00pages
485-9issue
6eissn
0036-4665issn
1678-9946journal_volume
36pub_type
杂志文章abstract::Recent human herpesvirus 6 (HHV-6) infection was detected in cases of exanthem subitum (ES) involving four children, aged 10 to 24 months, between April and August 1994, in Belém, Brazil. By using the indirect immunofluorescence antibody assay (IFA), significant increases (at least eight times) in antibody concentrati...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651995000600003
更新日期:1995-11-01 00:00:00
abstract::Three isolates over 5 years from a patient with persistent relapsing mucosal leishmaniasis due to Leishmania (Viannia) braziliensis and 7 clones from one of these isolates were studied by zymodemes and serodemes analysis. Results showed evidences of clonal phenotypic variation. Eight isoenzymes markers demonstrated cl...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651991000500002
更新日期:1991-09-01 00:00:00
abstract::The vasoactive intestinal peptide (VIP) expression is lower in cardiac chagasic patients and is related to worse cardiac function. The reduction of VIP in patients with Chagas disease may be a result of its enhanced degradation. To test this hypothesis, the tryptase and chymase expression was evaluated. We also relate...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S1678-9946201860057
更新日期:2018-10-22 00:00:00
abstract::Paracoccidioidomycosis and histoplasmosis are systemic fungal infections endemic in Brazil. Disseminated clinical forms are uncommon in immunocompetent individuals. We describe two HIV-negative patients with disseminated fungal infections, paracoccidioidomycosis and histoplasmosis, who were diagnosed by biopsies of su...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S0036-46652015000600013
更新日期:2015-12-01 00:00:00
abstract::Chromoblastomycosis (CR) is a subcutaneous chronic mycosis characterized by a granulomatous inflammatory response. However, little is known regarding the pattern of leukocyte subsets in CR and the pathways involved in their recruitment. The objective of this study was to assess the cellular subsets, chemokine, chemoki...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652007000100009
更新日期:2007-01-01 00:00:00
abstract::Numerous pulmonary schistosome egg granulomas were present in mice submitted to partial portal vein ligation (Warren's model). The granulomas were characterized by cellular aggregations formed within alveolar tissue. Main cellular types were macrophages (epithelioid cells), eosinophils, plasma cells and lymphocytes. T...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651993000500007
更新日期:1993-09-01 00:00:00
abstract::Infrapopliteal mycotic aneurysm resulting from endocarditis is rare, with only a few reported cases. We describe the case of a 28-year-old male patient who was suffering with pain and edema in the right leg. The ultrasound revealed an aneurysm of the right tibioperoneal trunk and a deep vein thrombosis (DVT). The pati...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652012000300010
更新日期:2012-05-01 00:00:00
abstract::Leptospirosis is a globally distributed zoonosis with a broad clinical spectrum. This disease mostly affects liver and kidney tissues. Other organs such as the pancreas, can be affected by leptospirosis-induced vasculitis. In addition, cardiac manifestations are common, and the presence of transient ECG abnormalities ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type:
doi:10.1590/S1678-9946201961063
更新日期:2019-12-20 00:00:00
abstract::Between April 2003 and May 2009 phlebotomine sandflies were collected in Parque do Sabiá complex, Uberlândia municipality, Minas Gerais State, Brazil, using CDC and Shannon traps. The objective was to associate the sandfly species captured to the risk of the transmission of leishmaniasis in the municipality. The 126 c...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652011000500003
更新日期:2011-09-01 00:00:00
abstract::This case report describes the findings of a 18 year-old black male from Bahia, a Northeastern state in Brazil, with the sickle cell trait, who developed bilateral hyphema and vitreous hemorrhage with blindness in the course of leptospirosis. The patient started to complain of blurred vision four days after the start ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652000000500009
更新日期:2000-09-01 00:00:00
abstract::Three patients with the diagnosis of subacute juvenile paracoccidioidomycosis who, at the time of their first visit, had no signs or symptoms of lung involvement were studied. Initially the diagnosis was confirmed by the observation of P. brasiliensis in biopsy material obtained from clinically involved lymphadenopath...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651989000100004
更新日期:1989-01-01 00:00:00
abstract::A 25-year-old male without prior co-morbidities was admitted to hospital with Fusobacterium necrophorum bacteremia, where he was found to have liver and splenic abscesses. Further evaluation with echocardiography revealed a bicuspid aortic valve with severe insufficiency and a 1.68 x 0.86 cm vegetation. The patient re...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/s0036-46652011000300009
更新日期:2011-05-01 00:00:00
abstract::Three calves experimentally infected with Schistosoma mansoni, and passing viable eggs in feces, as well as 5 normal calves (coming from a non-endemic area for schistosomiasis) kept as controls, were maintained in an enclosure (850 m2 in area). In this enclosure, a tank with water received 500 laboratory reared Biomph...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651993000100002
更新日期:1993-01-01 00:00:00
abstract::The currently known distribution range of Achatina fulica Bowdich, 1822, in the state of São Paulo, Brazil, is presented. The record of A. fulica naturally infested with Aelurostrongylus abstrusus larvae (Railliet, 1898) (Nematoda: Metastrongylidae) can be found in the city of Guaratinguetá. It was found A. fulica wit...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652010000400009
更新日期:2010-07-01 00:00:00
abstract::Two cases of ectopic cutaneous schistosomiasis are described. Both patients presented with abdominal papular skin lesions, which on biopsy were found to contain granulomas with Schistosoma mansoni eggs. Twenty-five other cases were retrieved from the literature. Most patients were female, mean age 24.9 year, with a pr...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/s0036-46651998000400009
更新日期:1998-07-01 00:00:00
abstract::The nematode Calodium hepaticum (syn. Capillaria hepatica) is a zoonotic helminth found mainly infecting rats. It was studied the prevalence of C. hepaticum infection in Rattus norvegicus in an urban area of Rio de Janeiro (Brazil), with low urban planning and sanitation. The presence of C. hepaticum was identified th...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652014000500016
更新日期:2014-09-01 00:00:00
abstract::Systemic fungal infections are responsible for high mortality rates. Several species of fungi may be involved, but Candida spp. is the most prevalent. Simvastatin is used to lower cholesterol and also exhibits antifungal action. The aim of this study was to evaluate the synergistic action of simvastatin with fluconazo...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652012000400003
更新日期:2012-08-01 00:00:00
abstract::The aim of this article is to present an investigation of cure rate, after long follow up, of specific chemotherapy with benznidazole in patients with both acute and chronic Chagas disease, applying quantitative conventional serological tests as the base of the criterion of cure. Twenty one patients with the acute for...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 临床试验,杂志文章
doi:
更新日期:2002-01-01 00:00:00
abstract::We describe the production of the potential monoclonal antibodies (MoAbs) using BALB/c mice immunized with vesicular fluid (VF)-Tcra (T. crassiceps) antigen. Immune sera presented anti-VF-Tcra (<20kD) IgG and IgM antibodies with cross-reactivity with T. solium (Tso) antigen (8-12, 14, and 18 kD). After cell fusion, we...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652000000300013
更新日期:2000-05-01 00:00:00
abstract::The insecticidal effect of six commercially available plant oils was tested against 4th larval instars of Culex pipiens. Larvae were originally collected from Meit El-Attar, Qalyubia Governorate, Egypt, and then reared in the laboratory until F1 generation. The LC50 values were 32.42, 47.17, 71.37, 83.36, 86.06, and 1...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652008000200008
更新日期:2008-03-01 00:00:00
abstract::The circulation of arboviruses throughout the world and the maintenance of lymphatic filariasis endemicity in tropical countries, combined with the lack of vaccines and specific treatments, highlight the importance of reducing the populations of mosquitoes involved in the transmission of these pathogens, Aedes aegypti...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S1678-9946202062094
更新日期:2020-11-27 00:00:00
abstract::A retrospective study was conducted in nine patients with rabies admitted to a hospital of Fortaleza, Brazil. Autopsy was performed in all cases. The ages ranged from three to 81 years and six were males. They all were bitten by dogs. The time between the accident and the hospital admission ranged from 20 to 120 days ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652005000600002
更新日期:2005-11-01 00:00:00
abstract::A comparative study of the "in vitro" susceptibility of 24 Cryptococcus strains to 5 antifungal drugs (amphotericin B, 5 fluorocytosine, miconazole, itraconazole and ketoconazole), was carried out. These strains were grouped according to species, varieties and isolation's origins. The minimum inhibitory concentration ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651989000500009
更新日期:1989-09-01 00:00:00
abstract::Envenomation by coral snakes (Micrurus sp.) is one of the most dangerous injuries in America and it is considered as a serious medical emergency, however bites by these snakes appear to be rare. We analyzed epidemiological data, clinical signs and antivenom use in Argentina during the period between 1979-2003. During ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652013000100003
更新日期:2013-01-01 00:00:00
abstract::In Brazil, the main etiologic agent of Leishmaniasis that frequently presents with mucosal involvement belongs to the Viannia subgenus. The therapeutic conduct in this disease depends on the parasitological diagnosis, and classical methods are restricted in identifying the agent. In this paper we describe a polymerase...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652004000600007
更新日期:2004-11-01 00:00:00
abstract::The pathogenesis of chronic chagasic myocarditis remains incompletely understood. Several hypotheses have been proposed: (1) direct tissue destruction by Trypanosoma cruzi; (2) neurogenic theory; (3) anti-heart immune reactions; and (4) microvascular disease. We present herein a dynamic alternative hypothesis. We beli...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/s0036-46651992000600015
更新日期:1992-11-01 00:00:00
abstract::The aim of this research was to monitor the presence of females of Aedes aegypti (Linnaeus, 1762) on the Seropédica municipality, Rio de Janeiro State, from 2010 to 2013. For this purpose, the Intelligent Dengue Monitoring (IM-Dengue) and Intelligent Virus Monitoring (IM-Virus) developed by Universidade Federal de Min...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S1678-9946201759051
更新日期:2017-01-01 00:00:00
abstract::The municipality of Cantagalo is an area with sustained transmission of American Cutaneous Leishmaniasis (ACL). Monthly sand fly collections were performed for three years (June 2012 - May 2015) using a CDC light trap. A total of 3,310 specimens belonging to 12 species were trapped: Nyssomyia intermedia, Nyssomyia whi...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S1678-9946201658050
更新日期:2016-07-11 00:00:00
abstract::We determined the relationship between plasma and red blood cell concentrations of quinine in children with uncomplicated falciparum malaria from an endemic area of Amazonian region. Quinine was determined by high performance liquid chromatography with ultraviolet detection. In the steady state the ratio between plasm...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 临床试验,杂志文章
doi:10.1590/s0036-46652009000200009
更新日期:2009-03-01 00:00:00
abstract::The contaminated soil with mammal feces is an important factor of risk to infection with zoonotic diseases. Amongst these zoonoses are visceral larva migrans and cutaneous larva migrans caused by Toxocara spp. and Ancylostoma spp., respectively. The aim of this study was to assess the environmental contamination by To...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652012000500006
更新日期:2012-09-01 00:00:00