Cell populations in lesions of cutaneous leishmaniasis of Leishmania (L.) amazonensis- infected rhesus macaques, Macaca mulatta.

abstract：:The aim of the current paper was to study in the state of Sergipe the population distribution and interactions between two species of Biomphalaria, the snail vectors of Schistosoma mansoni in the northeastern Brazil. Data collected in 1969 showed that B. straminea, with only one exception, was limited to the semi-dry ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Figueiredo CC

更新日期：1989-07-01 00:00:00

abstract：:The schistosomal parasite plays a critical role in the development of malignant lesions in different organs. The pathogenesis of cancer is currently under intense investigation to identify reliable prognostic indices for disease detection. The objective of this paper is to evaluate certain biochemical parameters as di...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Hamed MA,Ahmed SA,Khaled HM

更新日期：2011-05-01 00:00:00

abstract：:Forty-four marsupials, 77 rodents and 161 ticks were captured in an Atlantic Forest Reserve in Cotia county, State of São Paulo, where human cases of Lyme disease (LD) simile were reported. Twenty-one borrelia-like spirochete isolates were recovered from the mammals' blood and rodent livers or spleens, and triturated ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Abel IS,Marzagão G,Yoshinari NH,Schumaker TT

更新日期：2000-09-01 00:00:00

abstract：:While the eosinophil's effector functions clearly can contribute to the pathogenesis of allergic diseases, the evolutionary benefit to having eosinophils as a distinct class of leukocyte is not clear, especially if one must reconsider the nominally beneficial role of eosinophils in parasite host defense, Eosinophils a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Weller PF,Lim K

更新日期：1997-01-01 00:00:00

abstract：:BACKGROUND Human herpesvirus 2 (HHV-2) have DNA genome with a limited genetic variability and have been classified into two clades. OBJECTIVES To identify and characterise six HHV-2 isolates derived from Brazilian women. METHODS HHV-2 isolates were performed polymerase chain reaction (PCR) and sequencing of 2250 pb of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lima LRP,Araújo NA,Guterres A,Pilotto JH,Niel C,Paula VS

更新日期：2018-12-03 00:00:00

abstract：BACKGROUND:Occult hepatitis B virus (HBV) - characterized by the absence of detectable HBsAg in the presence of HBV DNA - represents a potential threat for blood safety. OBJECTIVES:This study was conducted with the aim to investigate the serological and molecular characterization of occult HBV infection (OBI) among bl...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Mabunda N,Zicai AF,Ismael N,Vubil A,Mello F,Blackard JT,Lago B,Duarte V,Moraes M,Lewis L,Jani I

更新日期：2020-09-23 00:00:00

abstract：:Several factors appear to affect vertical HIV-1 transmission, dependent mainly on characteristics of the mother (extent of immunodeficiency, co-infections, risk behaviour, nutritional status, immune response, genetical make-up), but also of the virus (phenotype, tropism) and, possibly, of the child (genetical make-up)...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bongertz V

更新日期：2001-01-01 00:00:00

abstract：:Antibodies against heart vascular structures and striated muscle cells interstitium (EVI antibodies) persist in Chagas' disease patients who had been cured by specific treatment as demonstrated by negative xenodiagnosis, conventional serology (CS) and complement mediated lysis (CoML). On the other hand, EVI antibodies...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Brener Z,Ramirez LE,Krettli AU,Cançado JR

更新日期：1983-10-01 00:00:00

abstract：:Mitochondrial DNA of Biomphalaria tenagophila, a mollusc intermediate host of Schistosoma mansoni in Brazil, was sequenced and characterised. The genome size found for B. tenagophila was 13,722 bp and contained 13 messenger RNAs, 22 transfer RNAs (tRNA) and two ribosomal RNAs (rRNA). In addition to sequencing, the mit...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Jannotti-Passos LK,Ruiz JC,Caldeira RL,Murta SM,Coelho PM,Carvalho OS

更新日期：2010-07-01 00:00:00

abstract：:An experimental model for acquired and congenital ocular toxoplasmosis as well as a model to induce experimental autoimmune uveitis (EAU) was investigated in Calomys callosus. Toxoplasma gondii, ME-49 strain, was used to infect males and pregnant- and not pregnant-females while S-antigen, a major glycoprotein of the r...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pereira Mde F,Silva DA,Ferro EA,Mineo JR

更新日期：1999-01-01 00:00:00

abstract：:The mechanisms that facilitate the adaptation of Trypanosoma cruzi to two distinct hosts, insect and vertebrate, are poorly understood, in part due to the limited ability to perform gene disruption studies by homologous recombination. This report describes a developmentally-defective phenotype that resulted from integ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Zacks MA

更新日期：2007-02-01 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：:Cholinesterase and acid phosphatase (AP), but not alkaline phosphatase activities, were detected in cytosolic and membrane-bound fractions of ivermectin resistant and susceptible Haemonchus contortus infective-stage larvae. Some differences in acetylcholinesterase activity of cytosolic fractions and in the AP activity...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Giménez-Pardo C,Martínez-Grueiro MM,Gómez-Barrio A,Rodríguez-Caabeiro F

更新日期：2004-03-01 00:00:00

abstract：:In the Americas, hantaviruses cause severe cardiopulmonary syndrome (HCPS) with a high fatality rate. Hantavirus infection is commonly diagnosed using serologic techniques and reverse transcription-polymerase chain reaction. This paper presents a novel plaque reduction neutralisation test (PRNT) for detecting antibodi...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pádua Md,Souza WM,Lauretti F,Figueiredo LT

更新日期：2015-08-01 00:00:00

abstract：:Several protozoan parasites exist in the Trypanosomatidae family, including various agents of human diseases. Multiple lines of evidence suggest that important differences are present between the translational and mRNA processing (trans splicing) systems of trypanosomatids and other eukaryotes. In this context, certai...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Silva MT,Ambrósio DL,Trevelin CC,Watanabe TF,Laure HJ,Greene LJ,Rosa JC,Valentini SR,Cicarelli RM

更新日期：2011-03-01 00:00:00

abstract：:The cases of five patients with unusual manifestations of acute schistosomiasis mansoni are described in this paper. One patient developed skin lesions, three displayed diverse lung involvement, and one presented pyogenic liver abscesses caused by Staphylococcus aureus. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lambertucci JR,Rayes AA,Barata CH,Teixeira R,Gerspacher-Lara R

更新日期：1997-09-01 00:00:00

abstract：:A major advance in our understanding of the natural history of Schistosoma haematobium-related morbidity has come through the introduction of the portable ultrasound machines for non-invasive examination of the kidneys and bladder. With the use of generators or battery packs to supply power in non-clinical field setti...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： King CH

更新日期：2002-01-01 00:00:00

abstract：:In Brazil, until 2004, the immunization policy against diphtheria involved childhood vaccination with no official routine booster dose administered after 15 years of age. This study assessed functional antibody levels against diphtheria among blood donors. A total of 140 blood samples were collected, and diphtheria an...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pimenta FP,Damasco PV,Cerbino Neto J,Lopes GS,Hirata R Jr,Milagres LG,Mattos-Guaraldi AL

更新日期：2006-06-01 00:00:00

abstract：:Prosorhynchoides arcuatus (Linton, 1900) from the intestine of Pomatomus saltator (L.) from the Atlantic coast of the State of Rio de Janeiro is studied by scanning electron microscopy, with detailed description of tegumental spines. Comments on the synonymy of this species with Bucephalopsis callicotyle Kohn, 1962 ar...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cohen SC,Kohn A,Barth OM

更新日期：1995-01-01 00:00:00

abstract：:There is a paucity of studies on the cell biology of Sporothrix luriei, the less common of the pathogenic Sporothrix species worldwide. The production of DHN-melanin, eumelanin, and pyomelanin were evaluated on the mycelial and yeast forms of the S. luriei ATCC 18616 strain. The mycelial form of this species produced ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cruz ILR,Figueiredo-Carvalho MHG,Zancopé-Oliveira RM,Almeida-Paes R

更新日期：2018-01-01 00:00:00

abstract：:A ribosome association factor (AF) was isolated from the yeast Sacchharomyces cerevisiae. Partial amino acid sequence of AF was determined from its fragment of 25 kDa isolated by treating AF with 2-(2-nitrophenylsulfenyl)-3-methyl-3'-Bromoindolenine (BNPS-skatole). This sequence has a 86% identity to the product of th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Correia H,Medina R,Hernández A,Bustamante E,Chakraburtty K,Herrera F

更新日期：2004-11-01 00:00:00

abstract：BACKGROUND:The time of progression towards AIDS can vary greatly among seropositive patients, and may be associated with host genetic variation. The NR1I2 (PXR) gene, a ligand-activated transcription factor, regulates the transcription immune pathway genes and can therefore be targets of viral replication mechanisms in...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Medeiros RM,Menti CF,Benelli JL,Matte MC,Melo MG,Almeida SE,Fiegenbaum M

更新日期：2017-04-01 00:00:00

abstract：:Schistosoma mansoni infections are associated with a strong Th2 cytokine response. Treatment of mice with IL-12 or anti-IL-2 or anti-IL-4 before i.v. injection of eggs increased IFN-gamma production and downregulated Th2 responses and pulmonary granuloma size. Conversely, anti-IFN-gamma antibody treatment increased Th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cheever AW,Jankovic D,Yap GS,Kullberg MC,Sher A,Wynn TA

更新日期：1998-01-01 00:00:00

abstract：:A large bibliographic survey provided data on Trypanosoma cruzi serology covering the period 1948-1984. Epidemiological-demographic methods provided an estimate of 11% for the prevalence of positive serology in Brazil, by 1984. Significant temporal trends were observed for most of the Brazilian geographical regions as...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Feitosa MF,Krieger H

更新日期：1991-04-01 00:00:00

abstract：:Genomic DNA fragments from males of Psychodopygus wellcomei were isolated and shown to be useful as sensitive diagnostic probes for positively separating individuals of this species from those of Ps. complexus. These two members of the Ps. squamiventris series are found sympatrically in foci of cutaneous leishmaniasis...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ready PD,Lainson R,Shaw JJ,Souza AA

更新日期：1991-01-01 00:00:00

abstract：:This paper examines the distribution and infection of Biomphalaria glabrata with Schistosoma mansoni in all aquatic snail habitats in a rural area in the state of Minas Gerais, Brazil, in relation to physico/biotic and behavioral factors. Snail and environmental surveys were carried out semi-annually between July 2001...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Kloos H,Passos LK,Loverde P,Oliveira RC,Gazzinelli A

更新日期：2004-11-01 00:00:00

abstract：:Angiostrongylus costaricensis lives in the cecal and mesenteric arteries of its vertebrate hosts, and causes an inflammatory disease in humans. To investigate unknown aspects of the abdominal angiostrogyliasis pathogenesis, infected Sigmodon hispidus were sequentially studied in different times of infection. The study...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Mota EM,Lenzi HL

更新日期：2005-07-01 00:00:00

abstract：:Psychodid sand flies are blood-sucking fly vectors of several parasitic diseases. The oldest definitive record of this group is from the Lower Cretaceous amber of Lebanon (circa-135 to -125 My), but the high diversity within this group supports the idea that the psychodoids originated much earlier in history. The pala...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Azar D,Nel A

更新日期：2003-01-01 00:00:00

abstract：BACKGROUND:Gene reporter-fluorescent cells have emerged as alternative method for drug screening. OBJECTIVE:Achievement of constitutive expression of fluorescent protein GFP by Leishmania braziliensis as alternative method for drug screening. METHODS:L. braziliensis-GFP was generated using Leishmania tarentolae pLEXS...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bastos MS,Souza LÂ,Onofre TS,Silva A Júnior,Almeida MR,Bressan GC,Fietto JL

更新日期：2017-02-01 00:00:00

abstract：:The invasion of the erythrocyte by Plasmodium falciparum depends on the ability of the merozoite to move through the membrane invagination. This ability is probably mediated by actin dependent motors. Using affinity columns with G-actin and F-actin we isolated actin binding proteins from the parasite. By immunoblottin...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Forero C,Wasserman M

更新日期：2000-05-01 00:00:00