Drimanes from Drimys brasiliensis with leishmanicidal and antimalarial activity.

abstract：:A seroepidemiological survey for toxocariasis, among 180 schoolchildren of the public schools of Sorocaba City, state of São Paulo, Brazil, was carried out from August 2000 to July 2001. ELISA test was performed using excretory and secretory antigens for the detection of IgG anti-Toxocara antibodies. Information regar...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Coelho LM,Silva MV,Dini CY,Giacon Neto AA,Novo NF,Silveira EP

更新日期：2004-10-01 00:00:00

abstract：:Leptoconops nosopheris sp. n. (Diptera: Ceratopogonidae) is described from a blood-filled female biting midge in Early Cretaceous Burmese amber. The new species is characterized by a very elongate terminal flagellomere, elongate cerci, and an indistinct spur on the metatibia. This biting midge contained digenetic tryp...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Poinar G Jr

更新日期：2008-08-01 00:00:00

abstract：:The Kilombero Malaria Project (KMP) attempts to define operationally useful indicators of levels of transmission and disease and health system relevant monitoring indicators to evaluate the impact of disease control at the community or health facility level. The KMP is a longitudinal community based study (N = 1024) i...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Teuscher T

更新日期：1992-01-01 00:00:00

abstract：BACKGROUND:Fibrosis in the peripheral nerve is the end stage of leprous neuropathy and the cause of the resulting permanent neural function impairments. Preventive measures to avoid this irreversible pathological state are a relief strategy for leprosy sufferers. OBJECTIVES:The present study describes the frequency of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Antunes SLG,Jardim MR,Vital RT,Pascarelli BMO,Nery JADC,Amadeu TP,Sales AM,da Costa EAF,Sarno EN

更新日期：2019-01-01 00:00:00

abstract：:In this study, IgA1 levels in the milk and serum of puerperae were compared and a correlation was established between the levels of this immunoglobulin and the occurrence of parasitism. Eighty-three paired milk and serum samples were obtained from puerperal and IgA1 levels were analyzed. In addition, the presence of i...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Manhani MN,Cruz JM,Ferreira DM,Abdallah VO,Souza MA

更新日期：2008-08-01 00:00:00

abstract：:We have been interested in identifying genes that play a role in reproduction of the mosquito Aedes aegypti. Our interests are currently focused on the vitellogenin genes which in the mosquito are expressed only in the fat body in response to the insect steroid hormone, 20-hydroxyecdysone. Four of the five vitellogeni...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Hamblin MT,Marx JL,Wolfner MF,Hagedorn HH

更新日期：1987-01-01 00:00:00

abstract：:Trypanosoma cruzi infection has a large public health impact in Latin American countries. Although the transmission rates via blood transfusions and insect vectors have declined sharply in the past 20 years due to policies of the Southern Cone countries, a large number of people are still at risk for infection. Curren...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Silva DR,Castro SL,Alves MC,Batista Wda S,Oliveira GM

更新日期：2012-03-01 00:00:00

abstract：:A kinetic study of the cells present in the spleen of BALB/c mice infected with Schistosoma mansoni was carried out. The lymphocytes were evaluated phenotypically with monoclonal antibodies and the effect of splenectomy on the modulation of periovular granuloma was also investigated. The infected mice had proportional...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Arruda SM,Santoro F,Sadigursky M

更新日期：1993-01-01 00:00:00

abstract：:In schistosomiasis, the host/parasite interaction remains not completely understood. Many questions related to the susceptibility of snails to infection by respective trematode still remain unanswered. The control of schistosomiasis requires a good understanding of the host/parasite association. In this work, the susc...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Abdel-Hamid AH,Rawi SM,Arafa AF

更新日期：2006-12-01 00:00:00

abstract：:Brazilian studies involving entomological succession patterns in carcasses have been used to describe the necrophagous entomofauna of a determined municipality or region with forensic objectives. Following the same objectives, an ecological study with 10 calyptrate dipterans was carried out during the winter of 2007 a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barbosa RR,Mello-Patiu CA,Ururahy-Rodrigues A,Barbosa CG,Queiroz MM

更新日期：2010-03-01 00:00:00

abstract：:Two essential oils of Lippia alba (Mill.) N.E. Brown (Verbenacea), the carvone and citral chemotypes and 15 of their compounds were evaluated to determine cytotoxicity and antifungal activity. Cytotoxicity assays for both the citral and carvone chemotypes were carried out with tetrazolium-dye, which showed a dose-depe...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Mesa-Arango AC,Montiel-Ramos J,Zapata B,Durán C,Betancur-Galvis L,Stashenko E

更新日期：2009-09-01 00:00:00

abstract：:We report the molecular characterization of a novel reiterated family of transcribed oligo(A)-terminated, interspersed DNA elements in the genome of Trypanosoma cruzi. Steady-state level of transcripts of this sequence family appeared to be developmentally regulated, since only in the replicative forms the parasite sh...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Verbisck NV,dos Santos MR,Engman DM,Angel Chiurillo M,Ramirez JL,Araya JE,Mortara RA,da Silveira JF

更新日期：2003-01-01 00:00:00

abstract：:The kidney trematode Paratanaisia bragai is reported for the first time parasitizing the ring-necked pheasant (Phasianus colchicus L., 1758) and the pathological alterations associated to the parasitism are referred on the basis of 50 specimens of this bird from backyard flocks in 11 counties of the state of Rio de Ja...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gomes DC,Menezes RC,Tortelly R,Pinto RM

更新日期：2005-05-01 00:00:00

abstract：:A cross-sectional study for schistosomiasis was carried out in the localities of Aliança, Alegre and Coroatá (districts of Cururupu, São Bento and São João Batista, respectively) in the lowland of the state of Maranhão, after respectively 13, 11 and 4 mass treatments with oxamniquine in the period of ten years (1977-1...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cutrim RN,Coura JR

更新日期：1992-10-01 00:00:00

abstract：:The sample consists of 226 skulls from the Atacameño cemetery of Coyo Oriente (639-910 AD), associated with the Tiwanaku period. The authors analyzed signs of acute trauma typically associated with violence, and the results were 12% of men and 9.9% of women displaying any type of lesion related to violence. In males, ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lessa A,de Souza SM

更新日期：2006-12-05 00:00:00

abstract：:A new species of planorbid mollusc, Plesiophysa dolichomastix (Greek dolichos = long, mastix = flagellum), collected from Lagoa da Pedra, municipality of Santa Rosa, state of Goiás, Brazil (15 degrees 01'S, 47 degrees 13'W) is described. It is indistinguishable by the shell characters from the five congeneric species ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Paraense WL

更新日期：2002-06-01 00:00:00

abstract：:Tissue invasion and pathology by Trypanosoma cruzi result from an interaction between parasite virulence and host immunity. Successive in vivo generations of the parasite select populations with increasing ability to invade the host. Conversely, prolonged in vitro selection of the parasite produces attenuated sublines...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Basombrío MA,Segura MA,Gómez L,Padilla M

更新日期：2000-01-01 00:00:00

abstract：:The presence of transmitted human immunodeficiency virus (HIV)-1 drug-resistance (TDR) at the time of antiretroviral therapy initiation is associated with failure to achieve viral load (VL) suppression. Here, we report TDR surveillance in a specific population of men who have sex with men (MSM) in Belo Horizonte, Braz...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Tupinambás U,Duani H,Martins AV,Aleixo AW,Greco DB

更新日期：2013-06-01 00:00:00

abstract：:Discs of polyvinyl alcohol cross-linked with glutaraldehyde were synthesized under acid catalysis (H2SO4). Then, the antigen F1 purified from Yersinia pestis was covalently linked to this modified polymer. Afterwards, an enzyme-linked immunosorbent assay (ELISA) was established for the diagnosis of plague in rabbit an...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Araujo AM,Petribú AT,Sales Barbosa GH,Diniz JR,de Almeida AM,Mendes Azevedo W,Malagueño E,Carvalho Júnior LB

更新日期：1996-03-01 00:00:00

abstract：:Mycobacterium fortuitum is a rapidly growing nontuberculous Mycobacterium that can cause a range of diseases in humans. Complications from M. fortuitum infection have been associated with numerous surgical procedures. A protective immune response against pathogenic mycobacterial infections is dependent on the granulom...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Silva TR,Petersen AL,Santos Tde A,Almeida TF,Freitas LA,Veras PS

更新日期：2010-08-01 00:00:00

abstract：:This study's objective was to search for Cryptosporidium sp. in diarrheic feces from children aged zero to 12 years and cared for at medical units within Universidade Federal de Uberlândia or at a private practice in Uberlândia, State of Minas Gerais, Brazil, from September 1992 to August 1993. Three fecal samples pre...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gennari-Cardoso ML,Costa-Cruz JM,de Castro E,Lima LM,Prudente DV

更新日期：1996-09-01 00:00:00

abstract：:Only one drug is currently available for the treatment and control of schistosomiasis and the increasing risk of selecting strains of schistosome that are resistant to praziquantel means that the development of new drugs is urgent. With this objective we have chosen to target the enzymes modifying histones and in part...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pierce RJ,Dubois-Abdesselem F,Caby S,Trolet J,Lancelot J,Oger F,Bertheaume N,Roger E

更新日期：2011-11-01 00:00:00

abstract：:Direct smear examination using Ziehl-Neelsen staining for pulmonary tuberculosis (PTB) diagnosis is inexpensive and easy to use, but has the major limitation of low sensitivity. Rapid molecular methods are becoming more widely available in centralized laboratories, but they depend on timely reporting of results and st...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Michelon CT,Rosso F,Schmid KB,Sperhacke RD,Oliveira MM,Kritski AL,Rezende L Jr,Costa ER,Ribeiro AW,Verza M,Cafrune PI,Silva MS,Kuhleis D,Zaha A,Rossetti ML

更新日期：2011-03-01 00:00:00

abstract：:The restriction fragment length polymorphism of the 195 bp repeated DNA sequence of Trypanosoma cruzi was analyzed among 23 T. cruzi stocks giving a reliable picture of the whole phylogenetic variability of the species. The profiles observed with the enzymes Hinf I and Hae III were linked together and supported the ex...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bastrenta B,Bosseno MF,Barnabé C,Tibayrenc M,Brenière SF

更新日期：1999-05-01 00:00:00

abstract：:Molecular characterization of one stable strain of Trypanosoma cruzi, the 21 SF, representative of the pattern of strains isolated from the endemic area of São Felipe, State of Bahia, Brazil, maintained for 15 years in laboratory by serial passages in mice and classified as biodeme Type II and zymodeme 2 has been inve...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Campos RF,Gonçalves MS,dos Reis EA,dos Reis MG,Andrade SG

更新日期：1999-01-01 00:00:00

abstract：:The present study investigated the diagnostic value of polymerase chain reaction (PCR) performed in parallel to conventional methods at an American tegumentary leishmaniasis (ATL) referral centre for diagnosis. Accuracy parameters for PCR were calculated using 130 patients with confirmed ATL (ATL group), 15 patients e...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fagundes A,Schubach A,Paula CC,Bogio A,Antonio Lde F,Schiavoni PB,Monteiro Vde S,Madeira Mde F,Quintella LP,Valete-Rosalino CM,Vasconcellos Ede C,Azeredo-Coutinho RB,Pacheco RS,Marzochi MC,Marzochi KB

更新日期：2010-02-01 00:00:00

abstract：:After the acute hyperergic phase of schistosomal infection, the chronic phase of the disease corresponds to the establishment of a relative equilibrium between the host and the parasite. This involves: (1) A shift from the predominance of the TH2 response observed in the acute phase, to the predominance of the TH1 res...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Borojevic R

更新日期：1992-01-01 00:00:00

abstract：:Goats from the Venezuelan northern arid zones were found infested by the following nematodes: Haemonchus contortus, Trichostrongylus axei, T. colubriformis, Cooperia curticei, Oesophagostomum columbianum, Skrjabinema ovis y Trichuris globulosa. The Shannon-Weaver index of diversity values oscillated between 0.045 and ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Morales G,Pino LA,Aldana E,Perdomo L,Molina E

更新日期：1986-04-01 00:00:00

abstract：:This paper presents the morphological, histological and ultrastructural characteristics of Myxobolus oliveirai sp. nov., a parasite of the gill filaments in Brycon hilarii from the Brazilian Pantanal. Out of 216 B. hilariispecimens examined (126 wild and 90 cultivated), 38.1% of wild specimens (n = 48) were infected. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Milanin T,Eiras JC,Arana S,Maia AA,Alves AL,Silva MR,Carriero MM,Ceccarelli PS,Adriano EA

更新日期：2010-09-01 00:00:00

abstract：:Tungiasis is a parasitic skin disease widespread in resource-poor urban and rural communities in Brazil. Inhabitants of an urban slum in Northeast Brazil were examined for the presence of tungiasis lesions and followed-up twice a week for a period of three weeks. Each time the number, stages, and topographic localizat...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Feldmeier H,Kehr JD,Poggensee G,Heukelbach J

更新日期：2006-02-01 00:00:00