Biological and morphological characteristics of Schistosoma mansoni from Ribeira Valley, state of São Paulo, Brazil I--Susceptibility of Biomphalaria tenagophila snail to sympatric S. mansoni strain.

abstract：:Cryptosporidium spp. and Cystoisospora belli are monoxenic protozoa that have been recognized as the causative agents of chronic diarrhea in immunocompromised individuals, especially HIV-infected subjects. The objective of this study was to evaluate the frequency of these intestinal protozoa in HIV-positive patients i...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Assis DC,Resende DV,Cabrine-Santos M,Correia D,Oliveira-Silva MB

更新日期：2013-01-01 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

authors： Ohlweiler FP,Guimarães MC,Takahashi FY,Eduardo JM

更新日期：2010-07-01 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

authors： Santos SAD,Andrade DR Júnior

更新日期：2017-12-21 00:00:00

abstract：:The aim of the study was to assess the factors associated with mother-to-child transmission (MTCT) of HIV. The study design is a retrospective cohort. The population consisted of 323 HIV-positive mothers and their newborns, attended at the Perinatal Nucleus/HUPE-UERJ, municipality of Rio de Janeiro, in the period of 2...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Gouvêa ADN,Trajano AJB,Monteiro DLM,Rodrigues NCP,Costa JTD,Cavalcante MB,Auar DF,Gouvea EF,Taquette SR

更新日期：2020-09-30 00:00:00

abstract：:Stenotrophomonas maltophilia has emerged as an important opportunistic pathogen in the last decade. Increased resistance to sulfamethoxazole/trimethoprim (SMX/TMP) has been reported in S. maltophilia strains in the past few years, leading to few therapeutic options. We conducted a prospective multicenter study at two ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Mendes ET,Paez JIG,Ferraz JR,Marchi AP,Silva ILAFE,Batista MV,Lima ALM,Rossi F,Levin AS,Costa SF

更新日期：2020-12-07 00:00:00

abstract：:Evaluation of TNF-alpha in patients with Kala-azar has drawn increasing interest due to its regulatory role on the immune system, in addition to its cachetizing activity. The objective of this study was to examine the association between plasma levels of TNF-alpha, measured by immunoreactivity (ELISA) and bioactivity ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Salomão R,Castelo Filho A,de Medeiros IM,Sicolo MA

更新日期：1996-03-01 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

authors： Gomes PEAC,Brilhante SO,Carvalho RB,Sousa DR,Daher EF

更新日期：2019-12-20 00:00:00

abstract：:Between April and October 2002, thirty fortnightly collections of oysters (Crassostrea rhizophorea) from a natural oyster bed at the Cocó River estuary in the Sabiaguaba region (Fortaleza, Ceará, Brazil) were carried out, aiming to isolate Aeromonas spp. strains. Oyster samples were submitted to the direct plating (DP...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Evangelista-Barreto NS,Vieira RH,Carvalho FC,Torres RC,Sant'Anna ES,Rodrigues DP,Reis CM

更新日期：2006-05-01 00:00:00

abstract：:Two naturally infected dogs (male and female) from Teófilo Otoni (MG-Brazil) were maintained for 18 months in our laboratory. Two other dogs, two months old males were infected with 1 x 10(6) promastigotes of MHO/BR/70/BH46 Leishmania (Leishmania) chagasi strain, endovenous route, and autopsied after 10 months and two...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Tafuri WL,Michalick MS,Dias M,Genaro O,Leite VH,Barbosa AJ,Bambirra EA,da Costa CA,Melo MN,Mayrink W

更新日期：1989-05-01 00:00:00

abstract：:M. hominis and U. urealyticum are the better-known mycoplasma species pathogenic to the human genitourinary tract, causing mainly urethritis, bacterial vaginosis and pregnancy complications. In HIV-infected patients, the prevalence and role of these species is still not well known. The aim of this work was to determin...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Cordova CM,Cunha RA

更新日期：2000-07-01 00:00:00

abstract：:An E.L.I.S.A. test for antibody detection, with an exo-antigen of Coccidioides immitis was standardized in 67 humans sera diluted in 1/1000, 1/2000, 1/4000 and 1/8000. Eighteen sera from mycologically proved cases of coccidioidomycosis were studied: 5 were negative and 13 were positive in some dilutions. 3/26 sera of ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Tiraboschi IN,Marticorena B,Negroni R

更新日期：1991-07-01 00:00:00

abstract：:This clinical case presents a patient with a raised and ulcerative lesion with erythematous edges in the mouth, on the lower lip that was unsuccessfully treated as herpes labialis. Clinical data and laboratory tests (Montenegro skin test, indirect immunofluorescence, direct parasite search and polymerase chain reactio...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Oyama J,Ferreira FBP,Conter CC,Lera-Nonose DSSL,Ramos-Milaré ÁCFH,Venazzi EAS,Silveira TGV,Lonardoni MVC

更新日期：2018-01-01 00:00:00

abstract：:Human cryptosporidiosis is an infection caused by Cryptosporidium spp, a coccidial protozoan of emergencial pathogenicity and responsible for severe and prostrating watery diarrhea, mainly in immunocompromised patients. Smears of stools submitted to concentration and staining by carbol fuchsin technique has been used ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Martinez I,Belda Neto FM

更新日期：2001-03-01 00:00:00

abstract：:Forty children with a diagnosis of Visceral Toxocariasis were evaluated prospectively from February 1982 to June 1989. Diagnosis was established by clinical, laboratory and serological (ELISA - ES Toxocara canis antigen) evaluations. A great clinical polymorphism was found in our patients, ranging from unspecific or a...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Jacob CM,Pastorino AC,Peres BA,Mello EO,Okay Y,Oselka GW

更新日期：1994-01-01 00:00:00

abstract：:A clinical case of cerebral infection by parenchymal racemose cysticercus, diagnosed by means of morphological characteristics in a patient of Valdivia city is described. The rare frequency of parenchymal location of racemose cysticercus as well as its differential diagnosis with other larval stages of cestodes that d...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Ortega E,Torres P

更新日期：1991-05-01 00:00:00

abstract：:Four hundred and fifteen cases of bites by adult Bothrops jararaca (group A) were admitted to the Hospital Vital Brasil between 1981 and 1987. These cases were compared to 562 cases of bites by young snakes of the same species (group B) during the same period and at the same hospital. In group B blood incoagulability ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Ribeiro LA,Jorge MT

更新日期：1990-11-01 00:00:00

abstract：:Thirty Candida albicans isolated from oral candidosis patients and 30 C. albicans isolated from control individuals were studied. In vitro susceptibility tests were performed for amphotericin B, fluconazole, 5-flucytosine and itraconazole through the Clinical and Laboratorial Standards Institute (CLSI) reference metho...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Koga-Ito CY,Lyon JP,Resende MA

更新日期：2008-01-01 00:00:00

abstract：:Rotavirus and pathogenic free-living amoebae are causative agents of important health problems, especially for developing countries like Pakistan where the population has limited access to clean water supplies. Here, we evaluated the prevalence of rotavirus and free-living amoebae (Acanthamoeba spp., Balamuthia mandri...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Yousuf FA,Siddiqui R,Khan NA

更新日期：2017-06-01 00:00:00

abstract：:Wild rodents have been described as the most important hosts for Angiostrongylus costaricensis in Central America and southern Brazil. Sinantropic rodents apparently do not play a significant role as natural hosts. A search for natural infection failed to document worms in 14 mice captured in the house of a patient wi...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： dos Santos FT,Pinto VM,Graeff-Teixeira C

更新日期：1996-05-01 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

authors： da Silva LC,Ono SK,Fonseca LE,Carrilho FJ,Mendes LC,França AV,Madruga CL,Laudanna AA

更新日期：1995-05-01 00:00:00

abstract：:Nosocomial infection among male patients in a public psychiatric hospital was studied and the definitions for use in long-term care facilities were employed for diagnosis. The overall nosocomial infection rate was 6.7 per 1,000 day inpatients; 55.6% of these infections were identified in the respiratory tract, 50% of ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Almeida RC,Pedroso RP

更新日期：1999-11-01 00:00:00

abstract：:Patients infected with the Human Immunodeficiency Virus (HIV) often have opportunistic infections, among which strongyloidiasis and coccidiosis are the most common parasitic infections that aggravate their health status. This study examined the prevalence of intestinal parasites, particularly of Strongyloides stercora...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Barcelos NB,Silva LFE,Dias RFG,Menezes Filho HR,Rodrigues RM

更新日期：2018-03-08 00:00:00

abstract：:Pleural effusions are rare events accompanying histoplasmosis, and in general they are associated with acute forms of the disease. It is described here a case of histoplasmoma associated with pleuritic pain and pleural effusion. ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： de Almeida MC,Vianna LG,Moraes MA

更新日期：1990-09-01 00:00:00

abstract：:The aim of the present work was to determine the prevalence of IgG and IgM anti-Toxoplasma gondii antibodies and the factors associated to the infection in pregnant women attended in Basic Health Units in Rolândia, Paraná, Brazil. The sample was divided in two groups: group I (320 pregnant women who were analyzed from...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Dias RC,Lopes-Mori FM,Mitsuka-Breganó R,Dias RA,Tokano DV,Reiche EM,Freire RL,Navarro IT

更新日期：2011-07-01 00:00:00

abstract：:A panoramic sight of epidemiological, clinical and experimental studies, referring to Loxosceles laeta and loxoscelism, carried out in 1955-1988, in Santiago, Chile is presented. Two-hundred and sixteen cases of loxoscelism were studied. The most relevant features were: 84.3% corresponded to cutaneous loxoscelism (CL)...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Schenone H,Saavedra T,Rojas A,Villarroel F

更新日期：1989-11-01 00:00:00

abstract：:Among the 424 serum samples examined, the prevalence of hepatitis virus infection turned out to be 89.6%, with 15.6% of HBsAg positivity. Some of the samples belonged to an afferent population and some other to workers of a West Africa rural hospital (Pop. Rep. of Benin). 27.3% of the positive subjects presented activ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Zanchetta N,Vigano P,Ferrario MP,Priuli GB,Djigbenoude O,Nardi GP,Pagano A

更新日期：1990-01-01 00:00:00

abstract：:Twenty seven cases of neurocysticercosis, with clinical picture of acute meningitis, are described. Twenty (74.1%) patients are male; the age was 4 to 42 years (23.6 +/- 11.7 years). The etiologic diagnosis was defined by the complement fixation test (Weinberg) and/or enzyme-linked immunosorbent assay (ELISA) for cyst...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Bonametti AM,Baldy JL,Bortoliero AL,de Maio CM,Passos Jdo N,Takata PK,de Pauli DS,Guimarães JC,Anzai ET,Elisbão Mdo C

更新日期：1994-01-01 00:00:00

abstract：:In view of the high circulation of migratory birds and the environmental and climatic conditions which favor the proliferation of arthropods, the Brazilian Pantanal is susceptible to circulation of arboviruses. However, the amount of data concerning arbovirus vectors in this area is scarce; therefore the aim of this s...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Pauvolid-Corrêa A,Tavares FN,Alencar J,Silva Jdos S,Murta M,Serra-Freire NM,Pellegrin AO,Gil-Santana H,Guimarães AE,Silva EE

更新日期：2010-01-01 00:00:00

abstract：:Toxoplasmosis is frequently acquired through the oral route by the ingestion of cysts or oocysts of Toxoplasma gondii. Once ingested, the parasites penetrate the intestinal epithelial cells and rapidly disseminate to all organs in the host. During T. gondii infection, the intestinal microbiota plays an important role ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Ribeiro Cde M,Zorgi NE,Meireles LR,Garcia JL,Andrade Junior HF

更新日期：2016-01-01 00:00:00

abstract：:Pathogenic Yersinia pestis isolates were collected during a plague outbreak at the Paraiba State in 1986. The Y. pestis isolates were investigated for the presence of virulence-associated factors and plasmid content. All strains analysed were proficient in the expression of the VW and fraction 1 antigens, pigment adso...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Leal NC,de Almeida AM,Ferreira LC

更新日期：1989-09-01 00:00:00