In vivo and in vitro Plasmodium falciparum resistance to chloroquine, amodiaquine and quinine in the Brazilian Amazon.

abstract：:The objective of this study was to evaluate the larvicidal activity of diterpenoids obtained from the oil-resin of Copaifera reticulata against Aedes aegypti larvae, the principal vector of dengue and urban yellow fever. Four diterpenes were obtained from oil-resin extraction with organic solvents and subsequent chrom...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Geris R,Silva IG,Silva HH,Barison A,Rodrigues-Filho E,Ferreira AG

更新日期：2008-01-01 00:00:00

abstract：:This study presents the results of T. mentagrophytes inoculation in the cheek pouch of the hamster, an immunologically privileged site. Forty two animals were used: 21 inoculated with 10(6) fungi in the cheek pouch (group 1) and 21 inoculated initially with 10(6) fungi in the foot pad and 15 days later in the cheek po...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： de Arruda MS,Gilioli S,Vilani-Moreno FR

更新日期：2001-01-01 00:00:00

abstract：:Human T-lymphotropic virus type 1 (HTLV-1) is found in indigenous peoples of the Pacific Islands and the Americas, whereas type 2 (HTLV-2) is widely distributed among the indigenous peoples of the Americas, where it appears to be more prevalent than HTLV-1, and in some tribes of Central Africa. HTLV-2 is considered an...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Paiva A,Casseb J

更新日期：2015-01-01 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：:Immunosuppressed animals respond poorly to schistosomal chemotherapy and a proper response can be restored by the administration of immune serum. Present study attempts to search whether immunological stimulation would increase drug effectiveness. Swiss mice infected with 50 S. mansoni cercariae were later treated wit...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Silva LM,Andrade ZA

更新日期：1997-01-01 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

authors： Menezes CM,Kirchgatter K,Di Santi SM,Savalli C,Monteiro FG,Paula GA,Ferreira EI

更新日期：1999-07-01 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

authors： Andrade Filho Jde S,Lopes MS,Corgozinho Filho AA,Pena GP

更新日期：1998-07-01 00:00:00

abstract：:The dot-enzyme-linked immunosorbent assay (dot-ELISA) was standardized using somatic (S) and excretory-secretory (ES) antigens of Toxocara-canis for the detection of specific antibodies in 22 serum samples from children aged 1 to 15 years, with clinical signs of toxocariasis. Fourteen serum samples from apparently nor...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Camargo ED,Nakamura PM,Vaz AJ,da Silva MV,Chieffi PP,de Melo EO

更新日期：1992-01-01 00:00:00

abstract：:A case-control study was conducted to identify risk factors for death from tetanus in the State of Pernambuco, Brazil. Information was obtained from medical records of 152 cases and 152 controls, admitted to the tetanus unit in the State University Hospital, in Recife, from 1990 to 1995. Variables were grouped in thre...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Miranda-Filho DB,Ximenes RA,Bernardino SN,Escarião AG

更新日期：2000-11-01 00:00:00

abstract：:Cytomegalovirus (CMV) infection is the most common congenital infection, affecting 0.4% to 2.3% newborns. Most of them are asymptomatic at birth, but later 10% develop handicaps, mainly neurological disturbances. Our aim was to determine the prevalence of CMV shed in urine of newborns from a neonatal intensive care un...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Santos DV,Souza MM,Gonçalves SH,Cotta AC,Melo LA,Andrade GM,Brasileiro-Filho G

更新日期：2000-05-01 00:00:00

abstract：:A serological screening was performed in 615 individuals aged 0-87 years, living in the city of Cordoba, Argentina to study the relationship between antibody prevalence for the SLE virus and age. A 13.98% prevalence of neutralizing antibodies was obtained and its relation to age was significantly high (p = 0.045). The...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Spinsanti LI,Ré VE,Díaz MP,Contigiani MS

更新日期：2002-03-01 00:00:00

abstract：:Chagas disease and the leishmaniases are endemic zoonoses of great importance to public health in the state of Piauí, Brazil. The domestic dog (Canis familiaris) is a major reservoir, host of Trypanosoma cruzi and Leishmania spp. in both urban and rural areas, playing an important role in the transmission of these par...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Perez TD,Figueiredo FB,Junior AA,Silva VL,Madeira MF,Brazil RP,Coura JR

更新日期：2016-11-03 00:00:00

abstract：:The aim of this study was to evaluate the effects of the protein-calorie malnutrition in BALB/c isogenic mice infected with Lacazia loboi, employing nutritional and histopathological parameters. Four groups were composed: G1: inoculated with restricted diet, G2: not inoculated with restricted diet, G3: inoculated with...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Barbosa AS,Diório SM,Pedrini SC,Nunes AJ,Belone Ade F,Silva SM,Sartori BG,Calvi SA,Vilani-Moreno FR,Pereira PC

更新日期：2015-09-01 00:00:00

abstract：:We present a case of prenatal diagnosis of congenital rubella. After birth, in addition to traditional serologic and clinical examinations to confirm the infection, we could identify the virus in the "first fluid aspirated from the oropharynx of the newborn", using polimerase chain reaction (PCR). We propose that this...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Pedreira DA,Haiek DB,Okay TS,Russo EM,Proença RS,Falcão MC,Zugaib M

更新日期：1997-11-01 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

authors： Vidal MR,Barbosa Júnior AA,Andrade ZA

更新日期：1993-09-01 00:00:00

abstract：:We report a case of a 42 year-old female, who came to a leishmaniasis reference center in Rio de Janeiro, Brazil, presenting a cutaneous leishmaniasis lesion in the right forearm. Treatment with low-dose intramuscular meglumine antimoniate (MA) (5 mg Sb5+/kg/day) was initiated, with improvement after 28 days, although...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Ferreira e Vasconcellos Ede C,Pimentel MI,Valete-Rosalino CM,Madeira Mde F,Schubach Ade O

更新日期：2014-07-01 00:00:00

abstract：:The aim of this research was to evaluate the prevalence of Staphylococcus spp. and S. aureus in the odontological clinic environment (air), their production of beta-lactamase and antibacterial susceptibility to the major antibiotics utilized in medical particle. During 12 months of samples collect were isolated 9775 C...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Bernardo WL,Boriollo MF,Gonçalves RB,Höfling JF

更新日期：2005-01-01 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：:A clinical trial pilot study, double-blinded, randomized, and controlled with a placebo to assess the effectiveness of oral doxycycline (200 mg, single dose) in preventing leptospirosis after high exposure to potentially contaminated water was performed in São Paulo, SP, Brazil. Confirmed cases were defined as those w...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Gonsalez CR,Casseb J,Monteiro FG,Paula-Neto JB,Fernandez RB,Silva MV,Camargo ED,Mairinque JM,Tavares LC

更新日期：1998-01-01 00:00:00

abstract：:A pair matched case/control study was conducted from January 1991 to 30 June 1992 in order to define clinical and laboratory findings associated with DMAC infection in AIDS patients. Since DMAC infection is usually associated with advanced immunodeficiency, and therefore also with other opportunistic illnesses, in add...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Rolla V,Jacomet C,Salause B,Wirbel E,Perez M,Daniel-Ribeiro CT,Rozenbaum W

更新日期：1999-09-01 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：: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：:A 73 year-old white male, living in the interior of the state of Mato Grosso do Sul, in central Brazil, after an initial diagnosis of sinusitis was transferred to the neurology service with a 3-day evolution of intracranial hypertension. Exams showed lymphocytic leukemia and a tumor-like lesion, either an expanding in...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Salgado PR,Gorski AG,Aleixo AR,de Barros EO

更新日期：1996-07-01 00:00:00

abstract：:Infection by Candida spp. is associated with high mortality rates, especially when treatment is not appropriate and/or not immediate. Therefore, it is necessary to correctly identify the genus and species of Candida. The aim of this study was to compare the identification of 89 samples of Candida spp. by the manual me...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Souza MN,Ortiz SO,Mello MM,Oliveira Fde M,Severo LC,Goebel CS

更新日期：2015-07-01 00:00:00

abstract：:A cross-sectional study was carried out among 996 volunteer blood donors enrolled from May 1999 to December 1999 to determine the seroprevalence of hepatitis E virus (HEV) infection among volunteer blood donors of the Regional Blood Bank of Londrina, State of Paraná, Brazil, and to evaluate whether the rate of seropre...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Bortoliero AL,Bonametti AM,Morimoto HK,Matsuo T,Reiche EM

更新日期：2006-03-01 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

authors： Costa E,Lopes AA,Sacramento E,Santos PA

更新日期：2000-09-01 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：INTRODUCTION:The majority of nosocomial fungal infections are caused by Candida spp. where C. albicans is the species most commonly identified. Molecular methods are important tools for assessing the origin of the yeasts isolated in hospitals. METHODS:This is a study on the genetic profiles of 39 nosocomial clinical i...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Bonfim-Mendonça Pde S,Fiorini A,Shinobu-Mesquita CS,Baeza LC,Fernandez MA,Svidzinski TI

更新日期：2013-11-01 00:00:00

abstract：:To investigate the effectiveness of the influenza vaccine in a population of elderly outpatients, we compared the occurrence and frequency of influenza like illness (ILI), respiratory illness and hospitalization in vaccinated and non-vaccinated subjects. All the outcomes were clinically defined. The two groups were si...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Gutierrez EB,Li HY,Santos AC,Lopes MH

更新日期：2001-11-01 00:00:00

abstract：:We all hope that biotechnology will answer some social and economical unavoidable requirements of the modern life. It is necessary to improve agriculture production, food abundance and health quality in a sustainable development. It is indeed a hard task to keep the progress on taking into account the rational use of ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Simões-Barbosa A,Simões Barbosa C,Simões Barbosa F

更新日期：2001-07-01 00:00:00