Mara Assay
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Correlação entre métodos de monitoramento de limpeza e desinfecção de superfícies ambulatoriais
Resumo Objetivo Avaliar a correlação entre cultura microbiológica, teste de ATP por bioluminescência e inspeção visual na monitorização da eficiência da limpeza e da desinfecção de superfícies de uma unidade ambulatorial e determinar o valor de corte de ATP-bioluminescência capaz de indicar superfície limpa em relação à avaliação microbi
Acta paul. enferm.. Publicado em: 29/07/2019
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2. Phragmalin Limonoids from Swietenia macrophylla and Their Antifeedant Assay against Mahogany Predator
The purification of the hexanic extract from the leaves of a native variety of mahogany collected in Santarém (Pará, Brazil) afforded eight new phragmalin limonoids along with eight known compounds. This variety, according to field observations, should be considered resistant against the specialist insect Hypsipyla grandella, that attacks the terminal shoo
J. Braz. Chem. Soc.. Publicado em: 2018-08
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3. Assessment of genetic mutation frequency induced by oxidative stress in Trypanosoma cruzi
Abstract Trypanosoma cruzi is the etiological agent of Chagas disease, a public health challenge due to its morbidity and mortality rates, which affects around 6-7 million people worldwide. Symptoms, response to chemotherapy, and the course of Chagas disease are greatly influenced by T. cruzi‘s intra-specific variability. Thus, DNA mutations in this parasi
Genet. Mol. Biol.. Publicado em: 11/06/2018
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4. A stability-indicating HPLC-PDA method for the determination of ferulic acid in chitosan-coated poly(lactide-co-glycolide) nanoparticles
ABSTRACT The development and validation of a simple and efficient method for the quantification of ferulic acid in poly (D,L-lactide-co-glycolide) (PLGA) nanoparticles coated with chitosan (CS) by reverse phase high performance liquid chromatography coupled to photodiode array detection was described. For the chromatographic analysis, a reverse phase C-18 co
Braz. J. Pharm. Sci.. Publicado em: 22/06/2017
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5. Pterodon pubescens oil nanoemulsions: physiochemical and microbiological characterization and in vivo anti-inflammatory efficacy studies
Abstract Pterodon pubescens (Benth.) Benth., Fabaceae, fruits have been investigated for their anti-inflammatory and antinociceptive activities, and have demonstrated effectiveness in inflammatory conditions. A physiochemical and microbiological stability study was conducted to investigate two nanoemulsion-based delivery systems of two different hydrophilic
Rev. bras. farmacogn.. Publicado em: 2017-06
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6. Ras oncogene and Hypoxia-inducible factor-1 alpha (hif-1α) expression in the Amazon fish Colossoma macropomum (Cuvier, 1818) exposed to benzo[a]pyrene.
Abstract Benzo[a]pyrene (B[a]P) is a petroleum derivative capable of inducing cancer in human and animals. In this work, under laboratory conditions, we analyzed the responses of Colossoma macropomum to B[a]P acute exposure through intraperitoneal injection of four different B[a]P concentrations (4, 8, 16 and 32 μmol/kg) or corn oil (control group). We anal
Genet. Mol. Biol.. Publicado em: 08/05/2017
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7. Genotoxic and mutagenic effects of polluted surface water in the midwestern region of Brazil using animal and plant bioassays
Abstract This study aimed to evaluate DNA damage in animal and plant cells exposed to water from the Água Boa stream (Dourados, Mato Grosso do Sul, Brazil) by using bioassays, and to identify the chemical compounds in the water to determine the water quality in the area. Through the cytotoxicity bioassay with Allium cepa, using micronucleus test, and comet
Genet. Mol. Biol.. Publicado em: 31/10/2016
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8. Interferon-gamma release assay versus tuberculin skin test for latent tuberculosis infection among HIV patients in Brazil
Abstract Setting Patients HIV+ attending in a reference clinic, Southern Brazil. Objective To compare the interferon-gamma-release assay (IGRA – QuantiFERON® TB Gold In-Tube) with the tuberculin skin test (TST – PPD-Rt 23) for latent tuberculosis infection (LTBI) in patients with HIV. Design Cohort study. Patients were simultaneously submitted to the
Braz J Infect Dis. Publicado em: 2016-02
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9. Bothrops snake venoms and their isolated toxins, an L-amino acid oxidase and a serine protease, modulate human complement system pathways
Background Activation of the complement system plays an important role in the regulation of immune and inflammatory reactions, and contributes to inflammatory responses triggered by envenomation provoked byBothrops snakes. The present study aimed to assess whether Bothrops jararacussuand Bothrops pirajai crude venoms and their isolated toxins, namely serine
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 29/09/2015
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10. Evaluation of the reference value for the Montenegro skin test
Abstract:INTRODUCTION:The Montenegro skin test (MST) has good clinical applicability and low cost for the diagnosis of American tegumentary leishmaniasis (ATL). However, no studies have validated the reference value (5mm) typically used to discriminate positive and negative results. We investigated MST results and evaluated its performance using different cu
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-08
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11. A high-throughput screening assay for distinguishing nitrile hydratases from nitrilases
A modified colorimetric high-throughput screen based on pH changes combined with an amidase inhibitor capable of distinguishing between nitrilases and nitrile hydratases. This enzymatic screening is based on a binary response and is suitable for the first step of hierarchical screening projects.
Braz. J. Microbiol.. Publicado em: 31/03/2015
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12. Cytomegalovirus infection in transplant recipients
Cytomegalovirus infection is a frequent complication after transplantation. This infection occurs due to transmission from the transplanted organ, due to reactivation of latent infection, or after a primary infection in seronegative patients and can be defined as follows: latent infection, active infection, viral syndrome or invasive disease. This condition
Clinics. Publicado em: 2015