A5011434702- Aquatic Ecosystems and Phytoplankton Dynamics
- Metabolomics and Mass Spectrometry Studies
- Algal biology and biofuel production
- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Marine Toxins and Detection Methods
- Biocrusts and Microbial Ecology
- Insect Pest Control Strategies
- Water Quality and Pollution Assessment
- Antioxidant Activity and Oxidative Stress
- Aquatic Ecosystems and Biodiversity
- Microbial bioremediation and biosurfactants
- Ginseng Biological Effects and Applications
- Insect Resistance and Genetics
- Immune Response and Inflammation
- Chromium effects and bioremediation
- Research on Leishmaniasis Studies
- Immunotoxicology and immune responses
- Environmental Toxicology and Ecotoxicology
- Pharmaceutical and Antibiotic Environmental Impacts
- Phytochemistry and Biological Activities
- Analytical chemistry methods development
- Phytochemistry and biological activities of Ficus species
- Heavy metals in environment
- Insect and Pesticide Research
Universidade de São Paulo
2012-2025
Hospital Universitário da Universidade de São Paulo
2024
Weatherford College
2024
Fundação de Amparo à Pesquisa do Estado de São Paulo
2018
Universidade Federal de Santa Maria
2005
Harmful cyanobacterial blooms, which frequently contain toxic secondary metabolites, are reported in aquatic environments around the world. More than two thousand metabolites have been from diverse sources over past fifty years. A comprehensive, publically-accessible database detailing these would facilitate research into their occurrence, functions and toxicological risks. To address this need we created CyanoMetDB, a highly curated, flat-file, openly-accessible of collated 850...
Abstract Cyanobacteria form harmful mass blooms in freshwater and marine environments around the world. A range of secondary metabolites has been identified from cultures cyanobacteria biomass collected cyanobacterial bloom events. comprehensive database is necessary to correctly identify advance research on their abundance, persistence toxicity natural environments. We consolidated open access databases manually curated missing information literature published between 1970 March 2020. The...
Two known sesquiterpenes (1R*,2S*,3R*,5S*,8S*,9R*)-2,3,5,9-tetramethyltricyclo[6.3.0.0(1,5)]undecan-2-ol and (1S*,2S*,3S*,5S*,8S*,9S*)-2,3,5,9-tetramethyltricyclo-[6.3.0.0(1,5)]undecan-2-ol were isolated for the first time from essential oil of red seaweed Laurencia dendroidea collected in Brazilian coast. These compounds not active against eight bacteria strains yeast Candida albicans, but showed some antioxidant activity. Both also found other species showing that they are exclusive...
Cylindrospermopsis raciborskii is a potentially toxic freshwater cyanobacterium that can tolerate wide range of light and temperature. Due to climatic changes, the interaction between temperature studied in aquatic systems, but no study has addressed effect both variables on saxitoxins production. This evaluated combined production cellular quota C. raciborskii. Experiments were performed with three strains batch cultures under six intensities (10, 40, 60, 100, 150, 500 μmol photons m−2 s−1)...
Species of Microcystis are the most common bloom-forming cyanobacteria in several countries. Despite extensive studies regarding production bioactive cyanopeptides this genus, there limited data on isolated strains from Brazil. Three sp. were Salto Grande Reservoir (LTPNA01, 08 and 09) investigated for presence mcy genes, microcystins other cyanopeptides. Microcystin microginin was confirmed two isolates using high-resolution tandem mass spectrometry after electrospray ionization...
The present study describes the main characteristics of proteolytic activities velvetbean caterpillar, Anticarsia gemmatalis Hübner, and their sensitivity to proteinase inhibitors activators. Midguts last instar larvae reared on an artificial diet were homogenized in 0.15 M NaCl centrifuged at 14,000 g for 10 min 4ºC supernatants used enzymatic assays 30ºC, pH 10.0. Basal total activity (azocasein hydrolysis) was 1.14 ± absorbance variation min-1 mg protein-1, 420 nm; basal trypsin-like...
Abstract PCB126 is a dioxin-like polychlorinated biphenyl (PCB) environmental pollutant with significant impact on human health, as it bioaccumulates and causes severe toxicity. PCB126-induced immune toxicity has been described, although the mechanisms have not fully elucidated. In this study, an in vivo protocol of intoxication into male Wistar rats by intranasal route was used, which yet described. The characterised accumulation lungs liver enhanced aryl hydrocarbon receptor expression...
<title>Abstract</title> In this contribution, we investigate the impact of different extraction methods on chemical profile stems and leaves <italic>Melissa officinalis</italic> L. Extemporaneous preparations (infusions) were performed revealed a significant disparity in profiles stems, with key constituents like rosmarinic acid being notably absent stem infusions. Subsequent analyses employing sequential maceration ultrasound solvents such as hexane, ethyl acetate, ethanol, however,...
Wastewater reuse has been widely discussed as an essential strategy to minimize the consumption of drinking water for less noble purposes. During biological wastewater treatment, organic matter is converted into a complex matrix containing variety soluble compounds. The objective present study was evaluate removal efficiency residual load in final effluent from treatment plant with conventional activated sludge process by different coagulants and parameters coagulation-flocculation process,...
Abstract Toxic cyanobacteria blooms are a frequent problem in subtropical reservoirs and freshwater systems. The purpose of this study was to investigate the occurrence potentially toxic environmental conditions associated with presence cyanotoxins Brazilian reservoir. Five collections were carried out at seven sampling locations reservoir, during rainy dry seasons, between years 2016 2017. There permanent Raphidiopsis raciborskii (Woloszynska) Aguilera, Berrendero Gómez, Kastovsky,...