Failure of nitric oxide production by macrophages and decrease in CD4+ T cells in oral paracoccidioidomycosis: possible mechanisms that permit local fungal multiplication.

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：:Zika virus (ZIKV) clinical presentation and frequency/duration of shedding need further clarification. Symptomatic ZIKV-infected individuals identified in two hospitals in Sao Paulo State, Brazil, were investigated regarding clinical characteristics, shedding in body fluids, and serodynamics. Ninety-four of 235 sympto...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Tozetto-Mendoza TR,Avelino-Silva VI,Fonseca S,Claro IM,Paula AV,Levin AS,Sabino EC,Mendes-Correa MC,Figueiredo WM,Felix AC,Souza NCS,Costa AA,Inenami M,Silva RMGD,Levi JE,Romano CM,Paranhos-Baccalà G,Segurado AC,Mayau

更新日期：2019-01-01 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：:Haptoglobin assay, a highly sensitive method to detect intravascular hemolysis was carried out in the sera of 19 patients referred to Hospital Vital Brazil with the cutaneous form of loxoscelism in order to investigate the occurrence of mild intravascular hemolysis. Data from this series did not show decreased levels ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Morena P,Nonoyama K,Cardoso JL,Barretto OC

更新日期：1994-03-01 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

authors： Handler MZ,Miriovsky B,Gendelman HE,Sandkovsky U

更新日期：2011-05-01 00:00:00

abstract：:The high mortality rates associated with candidemia episodes and the emergence of resistance to antifungal agents necessitate the monitoring of the susceptibility of fungal isolates to antifungal treatments. The new, recently approved, species-specific clinical breakpoints (SS-CBPs)(M27-S4) for evaluating susceptibili...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Santos ER,Dal Forno CF,Hernandez MG,Kubiça TF,Venturini TP,Chassot F,Santurio JM,Alves SH

更新日期：2014-11-01 00:00:00

abstract：:A cross-sectional study on the prevalence of schistosomiasis mansoni in three sites of the "Baixada Ocidental Maranhense" was carried out in 1993 in: Alegre (in the municipality of São Bento), Aliança (in Cururupu) and Coroatá II (in the municipality of São João Batista). Results were compared to those of another stud...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Cutrim RN,Chieffi PP,de Moraes JC

更新日期：1998-05-01 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

authors： Khater HF,Shalaby AA

更新日期：2008-03-01 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

authors： Argañaraz ER,Hubbard GB,Ramos LA,Ford AL,Nitz N,Leland MM,Vandeberg JL,Teixeira AR

更新日期：2001-09-01 00:00:00

abstract：:This work aimed to assess pathogenic potential and clonal relatedness of Aeromonas sp. and Vibrio cholerae isolates recovered during a diarrhea outbreak in Brazil. Clinical and environmental isolates were investigated for the presence of known pathogenic genes and clonal relatedness was assessed by intergenic spacer r...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Mendes-Marques CL,Nascimento LM,Theophilo GN,Hofer E,Melo Neto OP,Leal NC

更新日期：2012-12-01 00:00:00

abstract：:A total of 868 (84.89%) patients diagnosed with tetanus were studied, out of the 1,024 tetanus patients hospitalized at Couto Maia Hospital (Salvador, Bahia, Brazil), during the period between 1986 and 1997. Of this group (n = 868), 63.5% (n = 551) were discharged, 35.4% (n = 307) died, and 1.1% (n = 10) were transfer...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Greco JB,Tavares-Neto J,Greco Júnior JB

更新日期：2003-01-01 00:00:00

abstract：:This study longitudinally investigated the association between Triatoma dimidiata infestation, triatomine infection with Trypanosoma cruzi and household/backyard environmental characteristics in 101 homesteads in Molas and Yucatan, Mexico, between November 2009 (rainy season) and May 2010 (dry season). Logistic regres...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Koyoc-Cardeña E,Medina-Barreiro A,Escobedo-Ortegón FJ,Rodríguez-Buenfil JC,Barrera-Pérez M,Reyes-Novelo E,Chablé-Santos J,Selem-Salas C,Vazquez-Prokopec G,Manrique-Saide P

更新日期：2015-05-01 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

authors： de Roodt AR,De Titto E,Dolab JA,Chippaux JP

更新日期：2013-01-01 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：:The expression of iron regulated proteins (IRPs) in vitro has been obtained in the past by adding iron chelators to the culture after bacterial growth, in the presence of an organic iron source. We have investigated aspects concerning full expression of the meningococcal IRPs during normal growth, in defined condition...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Brandileone MC,Zanella RC,Vieira VS,Sacchi CT,Milagres LG,Frasch CE

更新日期：1994-07-01 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：:Sensitivity, specificity and positive predictive values of selected clinical signs and symptoms in the diagnosis of Schistosoma mansoni infection were evaluated in 403 individuals (69% of inhabitants over 1 year of age) in an endemic area in Brazil (Divino). Highest sensitivity (13%) was found for blood in stools. Spe...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： de Lima e Costa MF,Rocha RS,Colley D,Gazzinelli G,Katz N

更新日期：1991-01-01 00:00:00

abstract：:Publications are often used as a measure of research work success. Human T-lymphotropic virus (HTLV) type 1 and 2 are human retroviruses, which were discovered in the early 1980s, and it is estimated that 15-20 million people are infected worldwide. This article describes a bibliometric review and a coauthorship netwo...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： González-Alcaide G,Ramos JM,Huamaní C,Mendoza Cd,Soriano V

更新日期：2016-01-01 00:00:00

abstract：:Surfacen® is an exogenous natural lung surfactant, composed by phospholipids and hydrophobic proteins, which is applied successfully in Newborn Respiratory Distress Syndrome. In this paper, in vitro activity of Surfacen® against Leishmania amazonensis is described. The product showed activity against the amastigote fo...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Blanco O,Lugones Y,Díaz E,Monzote L

更新日期：2011-07-01 00:00:00

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. ma...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： de Souza CP,Araújo N,Jannotti-Passos LK,Guimarães CT

更新日期：1994-11-01 00:00:00

abstract：:Thirty eight paralysis cases classified as Guillain-Barré syndrome (GBS) in Brazil were analysed. In all these cases Sabin-related poliovirus vaccine strains were isolated. In most of the cases the last vaccine dose was given months or years before the onset of GBS, suggesting a persistent infection or the transmissio...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Friedrich F,Filippis AM,Schatzmayr HG

更新日期：1996-01-01 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

authors： Sá VC,Silva TA,Reis CM,Cunha FQ,Figueiredo F,Bocca AL

更新日期：2007-01-01 00:00:00

abstract：:Cerebral phaeohyphomycosis ("chromoblastomycosis") is a rare intracranial lesion. We report the first human culture-proven case of brain abscesses due to Fonsecaea pedrosoi in Brazil. The patient, a 28 year-old immunocompetent white male, had ocular manifestations and a hypertensive intracranial syndrome. Magnetic res...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Nóbrega JP,Rosemberg S,Adami AM,Heins-Vaccari EM,Lacaz Cda S,de Brito T

更新日期：2003-07-01 00:00:00

abstract：:American Tegumentary Leishmaniasis (ATL) is endemic in the municipality of Montes Claros, Minas Gerais State. The use of geotechnology such as spatial statistics and remote sensing has contributed to a better understanding of the eco-epidemiology of diseases, and consequently a better definition of control strategies....

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Ursine RL,Rocha MF,Sousa JF,Santos RCD,Soares MD,Gusmão MSF,Leite ME,Vieira TM

更新日期：2021-01-20 00:00:00

abstract：:An epidemiological survey with histoplasmin skin test was performed in 392 poultry farmers and 265 workers considered without occupational risk of exposition to Histoplasma capsulatum, etiologic agent of histoplasmosis. The results were positive in 28.8% and 13.2% in both groups respectively. Statistically, there was ...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Suárez Hernández M,Fernández Andreu CM,Estrada Ortiz A,Cisneros Despaigne E

更新日期：1992-07-01 00:00:00

abstract：:Formalin-killed promastigotes (FKP) of Leishmania major, in combination with Montanide ISA 720 (MISA), BCG or alum were used in vaccination of an inbred murine model against cutaneous leishmaniasis (CL). Significant and specific increases in anti-FKP IgG responses were detected for both alum-FKP and BCG-FKP compared t...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Mutiso JM,Macharia JC,Mutisya RM,Taracha E

更新日期：2010-03-01 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：: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：:Cryo-microtome sections of larvae of Strongyloides stercoralis and S. ratti respectively obtained from human and rat feces cultures, were used as antigens. Fluoresceinate conjugates against human IgG were employed at the ideal titer of 10 for S. stercoralis and 100 for S. ratti. The sensitivity of the indirect immunof...

journal_title：Revista do Instituto de Medicina Tropical de Sao Paulo

authors： Costa-Cruz JM,Bullamah CB,Gonçalves-Pires Mdo R,Campos DM,Vieira MA

更新日期：1997-11-01 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