Abstract:
:A sedimentation technique is described, in which a fecal suspension is placed on top of an aqueous sucrose solution of specific gravity 1.015 g/cm3. Using 100 by 15 mm test tubes, duplicate gravity sedimentation experiments were made using homogenized fecal suspensions (single-columns) and fecal suspensions placed on top of clear columns (double-columns). Egg and cyst counts, and turbidity determinations were made in the sediments obtained after definite time intervals. Most Ascaris lumbricoides, Trichuris trichiura and Ancylostomidae eggs sedimented within 20 minutes in single-and between 30 and 60 minutes in double-columns. Giardia duodenalis cysts required longer periods to sediment in double-than in single-columns; after 180 minutes (the maximum period of observation), double-column sediments produced 60.0% of the counts of single-columns. Double-column sediments were consistently less turbid than single-column ones.
journal_name
Rev Inst Med Trop Sao Paulojournal_title
Revista do Instituto de Medicina Tropical de Sao Pauloauthors
Moitinho Mda L,Ferreira CSdoi
10.1590/s0036-46651992000300013subject
Has Abstractpub_date
1992-05-01 00:00:00pages
255-8issue
3eissn
0036-4665issn
1678-9946journal_volume
34pub_type
杂志文章abstract::The development of small ultrasonographic equipment has permitted to incorporate this technique to the methods of early detection of Human Hydatidosis. 689 echographies were carried out in this experience, and 5.51% of compatible images in the whole population, and 12.24% in groups of risk (those living together with ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651989000400010
更新日期:1989-07-01 00:00:00
abstract::In order to study the chemoresistance of Plasmodium falciparum to commonly used antimalarial drugs in Brazil the authors have studied ten patients with falciparum malaria, acquired in the Brazilian Amazon region. Patients were submitted to in vivo study of drug sensitivity, after chemotherapy with either 4-aminoquinol...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651997000200004
更新日期:1997-03-01 00:00:00
abstract:UNLABELLED:Hepatitis C virus (HCV) is an important factor contributing to morbidity and mortality in patients co-infected with HIV and HCV. In addition, liver biopsy is an important tool in the clinical management of these patients. Although liver biopsy is controversial, it is recommended for all patients. Data regard...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652008000400005
更新日期:2008-07-01 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::The response to interferon treatment in chronic hepatitis NANB/C has usually been classified as complete, partial or absent, according to the behavior of serum alanine aminotransferase (ALT). However, a more detailed observation of the enzymatic activity has shown that the patterns may be more complex. The aim of this...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651995000300010
更新日期:1995-05-01 00:00:00
abstract::A chronic infection (10 years) by Lagochilascaris minor is described in a woman from the amazon region of Colombia. This is the third case of infection by this parasite that has been described so far in Colombia, and only the first one in a person coming from the Colombian Amazon region. ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651998000600009
更新日期:1998-11-01 00:00:00
abstract::Erythromycin, a reversal agent in multidrug-resistant cancer, was assayed in chloroquine resistance modulation. The in vitro microtechnique for drug susceptibility was employed using two freshly isolates of Plasmodium falciparum from North of Brazil. The antimalarial effect of the drug was confirmed, with an IC50 esti...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 临床试验,杂志文章
doi:10.1590/s0036-46651999000400009
更新日期:1999-07-01 00:00:00
abstract::American tegumentary leishmaniasis (ATL) is one of the most important but neglected infectious diseases, and can cause severe deformities. ATL incidence remains high in forest regions, such as in the Amazonas State, Brazil. However, differences within the State and over time have been observed, since infection pattern...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S1678-9946201961022
更新日期:2019-01-01 00:00:00
abstract:Introduction::According to the guidelines, the viral load of 2,000 IU/mL is considered the level to differentiate between inactive carriers and HBeAg(-) chronic hepatitis B patients. Even so, liver damage may be present in patients with lower viral load levels, mainly related to regional variations. This study aims to ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S1678-9946201658065
更新日期:2016-09-22 00:00:00
abstract::Fasciola hepatica somatic antigen, its partially purified fractions and excretion-secretion products were investigated as to serological, electrophoretic and biological properties. In a Sephadex G-100 column (SG-100), Fasciola hepatica total antigen (FhTA) gave 5 fractions, and SDS-PAGE analysis showed they were glyco...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651992000600005
更新日期:1992-11-01 00:00:00
abstract::Chromoblastomycosis is a chronic fungal infection. Itraconazole and terbinafine are the most recommended antifungal drugs for chromoblastomycosis, while amphotericin B is not usually recommended. A patient with chromoblastomycosis in our hospital showed poor clinical responses to itraconazole and terbinafine. The fungus...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S1678-9946201961031
更新日期:2019-06-19 00:00:00
abstract::The recognition profile of the tissue cysts antigens by IgG antibodies was studied during acute and chronic human toxoplasmic infection. Thus the IgG response against Toxoplasma gondii was investigated by immunoblotting in two patients accidentally infected with the RH strain as well as in group of naturally infected ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651998000200003
更新日期:1998-03-01 00:00:00
abstract::Tuberculous brain abscesses in AIDS patients are considered rare with only eight cases reported in the literature. We describe the case of a 34-year-old woman with AIDS and previous toxoplasmic encephalitis who was admitted due to headache and seizures. A brain computed tomography scan disclosed a frontal hypodense le...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/s0036-46652003000200013
更新日期:2003-03-01 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::Paracoccidioidomycosis is a chronic granulomatous disease that induces a specific inflammatory and immune response. The participation of nitric oxide (NO), a product of the inducible nitric oxide synthase enzyme (iNOS), as an important fungicidal molecule against Paracoccidioides brasiliensis has been demonstrated. In...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652005000500006
更新日期:2005-09-01 00:00:00
abstract::[This corrects the article doi: 10.1590/s1678-9946201961041]. ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 已发布勘误
doi:10.1590/S1678-9946201961041err
更新日期:2019-09-12 00:00:00
abstract::The prevalence of thermotolerant Campylobacter in diarrhoeic and healthy children as well as in dogs, hens, ducks and pigeons was determined in Southern Chile. Campylobacter were found in 34.5% of the faecal samples examined. The isolation rate of Campylobacter in diarrhoeic and healthy children was 16.3% and 6.4% res...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651994000500007
更新日期:1994-09-01 00:00:00
abstract::This paper reports a case of peritonitis by Nocardia asteroides during continuous ambulatory peritoneal dialysis in a man who had systemic lupus erythematous and chronic renal failure. Diagnosis was established by microscopic examination (Gram and Kinyoun) and culture of centrifuged dialysis fluid and the patient was ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651993000400013
更新日期:1993-07-01 00:00:00
abstract::Experiments were carried out to test the susceptibility of Biomphalaria tenagophila to the infection with strain SJ of Schistosoma mansoni in the F1, F2 and non-selected parental generation. The potential adaptation of B. tenagophila to desiccation, in healthy mollusks and those exposed to the larvae of S. mansoni of ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652002000400003
更新日期:2002-07-01 00:00:00
abstract::Canine visceral leishmaniasis (CVL) is recognizable by characteristic signs of disease and is highly lethal. The infection, however, may be quite inapparent in some seropositive dogs, and this has raised the polemic question as to whether or not such animals can be a source of infection for Lutzomyia longipalpis, the ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652010000500007
更新日期:2010-09-01 00:00:00
abstract::Two xenic isolates and cloned cultures of Entamoeba dispar were submitted to monoxenization using Crithidia fasciculata as the associated organism. Growth in monoxenic cultivation and ability of xenic and monoxenic trophozoites to destroy VERO cells and produce lesions in hamster livers were compared to those of a vir...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652006000500002
更新日期:2006-09-01 00:00:00
abstract::A 37-year-old male patient, Fitzpatrick skin phototype IV, a student living in Belem, Amazon region, in 2015 had a confirmed diagnosis of acquired immunodeficiency virus (HIV) infection, but did not initiate antiretroviral treatment at his own option. Three years after the diagnosis, erythematous maculae appeared on t...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type:
doi:10.1590/S1678-9946202062002
更新日期:2020-01-17 00:00:00
abstract::Systematic examination of the upper respiratory and digestive tracts (URDT) was performed in a group of 80 paracoccidioidomycosis (PCM) patients submitted to post-treatment follow-up ranging from 8 months to 17 years. Mucosae of the URDT had been involved prior to specific treatment in 74 patients, distributed as foll...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651995000500005
更新日期:1995-09-01 00:00:00
abstract::Lutzomyia verrucarum (Townsend, 1913) (Diptera: Psychodidae); the natural vector of Bartonella bacilliformis, agent of human bartonellosis (peruvian verruga or Carrion's disease), is a native species of Peru; its geographic distribution occurrs between latitudes 5 degrees and 13 degrees 25' South: in the Occidental an...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651993000600002
更新日期:1993-11-01 00:00:00
abstract::Trypanosoma cruzi (Schyzotrypanum, Chagas, 1909), and Chagas disease are endemic in captive-reared baboons at the Southwest Foundation for Biomedical Research, San Antonio, Texas. We obtained PCR amplification products from DNA extracted from sucking lice collected from the hair and skin of T. cruzi-infected baboons, ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652001000500007
更新日期:2001-09-01 00:00:00
abstract::This study examined the association between oral candidiasis in elderly users and nonusers of prosthesis and its predisposing factors. To this end, we performed a cross-sectional study where saliva samples from 48 patients were collected they used prosthesis and 43 patients (control group) who did not use. Among the 9...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S1678-9946201658017
更新日期:2016-01-01 00:00:00
abstract::The aim of this review is to show the significant role of HIF-1alpha in inflammatory and infectious diseases. Hypoxia is a physiological characteristic of a wide range of diseases from cancer to infection. Cellular hypoxia is sensed by oxygen-sensitive hydrolase enzymes, which control the protein stability of hypoxia-...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/S1678-9946201759092
更新日期:2017-12-21 00:00:00
abstract::Molluscs with shells very similar to Oncomelania nosophora were collected at Pedro Leopoldo and Lagoa Santa counties, MG, Brazil. They were identified, according to shell and soft part morphology, as Idiopyrgus souleyetianus. The others hidrobioids identified in Brazil are also listed. ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/s0036-46651990000200004
更新日期:1990-03-01 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::A finding of vertical transmission of the DEN 3 virus in male specimens of Aedes aegypti, collected in the 2009 fall-winter period, in Puerto Iguazú city, Misiones, Argentina, using the RT-PCR technique in a 15-specimen pool is reported. This result is analyzed within the context of the epidemiological situation of Ar...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S0036-46652014000200013
更新日期:2014-03-01 00:00:00