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Fernando Barbosa
University of São Paulo
Analytical chemistryEndocrinologyInductively coupled plasma mass spectrometryChemistryBiochemistry
258Publications
42H-index
5,769Citations
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Publications 270
Newest
#1João Paulo Bianchi Ximenez (USP: University of São Paulo)
#2Ariane Zamarioli (USP: University of São Paulo)H-Index: 8
Last. Fernando Barbosa (USP: University of São Paulo)H-Index: 42
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Osteoporosis and its consequence of fragility fracture represent a major public health problem. Human exposure to heavy metals has received considerable attention over the last decades. However, little is known about the influence of co-exposure to multiple heavy metals on bone density. The present study aimed to examine the association between exposure to metals and bone mineral density (BMD) loss. Blood and urine concentrations of 20 chemical elements were selected from 3 cycles (2005-2010) NH...
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#1Marilia Cristina Oliveira Souza (USP: University of São Paulo)
#2Maria da Conceição Pereira Saraiva (USP: University of São Paulo)H-Index: 11
Last. Kurunthachalam Kannan (NYU: New York University)H-Index: 104
view all 7 authors...
Abstract Research pertaining to exposure of humans to per- and polyfluorinated alkyl substances (PFASs) has received considerable public and regulatory attention in recent years. Although several studies have reported exposure to PFASs by populations in North America and western Europe, such information is still scarce in Latin America, including Brazil. In this study, concentrations of thirteen PFASs were determined in whole blood collected during the second trimester from 252 pregnant Brazilia...
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Abstract The Coastal Plain of Rio Grande do Sul state (CPRS), southern Brazil, encompasses Quaternary barrier-lagoon depositional systems developed in response to successive marine transgressions driven by glacial-interglacial cycles. As an attempt to refine he chronostratigraphy of the Pleistocene depositional systems, electron spin resonance (ESR) ages were obtained in 42 disarticulated shells of the marine bivalve Amiantis purpurata preserved in deposits in the southern CPRS, consisting of 35...
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#1Maria Fernanda Hornos Carneiro (USP: University of São Paulo)H-Index: 10
#2Ana Rita Thomazela Machado (USP: University of São Paulo)H-Index: 1
Last. Fernando Barbosa (USP: University of São Paulo)H-Index: 42
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The aim of the study was to evaluate if gold-coated superparamagnetic iron oxide nanoparticles (AuSPION) magnetic-targeted to the arthritic articulation of collagen induced arthritis (CIA) rats are able to ameliorate rheumatoid arthritis without producing significant biological adverse effects in comparison to colloidal Au nanoparticles (AuC) and metotrexate (MTX). Male Wistar rats were divided into control; arthritic; AuSPION (150 μg kg−1); AuC (150 μg kg−1) and MTX (2.5 μg kg−1). Treatments we...
1 CitationsSource
#1Bruno Alves RochaH-Index: 14
Last. Fernando BarbosaH-Index: 42
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#2Vívian da Silva Santos (UnB: University of Brasília)
Last. Bruno Lemos BatistaH-Index: 18
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Toxic elements, essential elements and other elements were determined in Brazilian rice by inductively coupled plasma - mass spectrometry (ICP-MS). The levels of As and Cd ranged from 34.4 to 86.5 ng g-1 and from 3.8 to 8.4 ng g-1, respectively. For Fe and Zn, the concentrations varied from 41.0 to 138.6 μg g-1 and from 18.0 to 38.4 μg g-1, respectively. A method for As speciation using hydride generation was developed. The developed method showed the lowest detection limits: 0.004 μg L-1 for di...
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#1Cássia Mariana Bronzon da Costa (USP: University of São Paulo)H-Index: 4
#2Marina Del Vecchio Filipin (USP: University of São Paulo)H-Index: 9
Last. Ana Amélia Carraro Abrahão (USP: University of São Paulo)H-Index: 5
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Chagas disease or American trypanosomiasis is caused by the protozoan Trypanosoma cruzi and is endemic of the Americas. The control of the disease is restricted to toxic and potentially teratogenic drugs, which limit the use during pregnancy. The use of food supplementation offers a safe and low-cost form to alleviate Chagas disease symptoms, mostly in areas with alimentary risk. For example, zinc demonstrates positive effects in immune response, including in Chagas disease during pregnancy. Thi...
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#1Fernando Barbosa (USP: University of São Paulo)H-Index: 42
#2Joseph A. Adeyemi (USP: University of São Paulo)H-Index: 6
Last. Andres D. Campiglia (UCF: University of Central Florida)H-Index: 22
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Abstract Increasing scientific attention on the presence of micro- and nanoplastics (MNPs) in the environments and their potential toxic effects on humans and the ecosystems is evident. Accordingly, the number of publications on this topic has increased substantially from only 5 in 2010 to more than 850 in 2019. Thus, this critical review aimed at providing state-of-the-art information on the existing methods for characterization and detection of MNPs in various matrices, as well as the reported...
1 CitationsSource
#1Lara Ferreira Azevedo (USP: University of São Paulo)H-Index: 2
#2Maria Fernanda Hornos Carneiro (UC: Pontifical Catholic University of Chile)
Last. Fernando Barbosa (USP: University of São Paulo)H-Index: 42
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Abstract Exposure to bisphenol A (BPA) and bisphenol S (BPS) has been associated with the development of metabolic disorders, such as obesity, dyslipidemias, and nonalcoholic fatty liver disease. Nonetheless, the associated mechanisms are still not fully understood. BPS is being used with no restrictions to replace BPA, which increases the concern regarding its safety and claims for further investigation on its potential mechanisms of toxicity. The present study aims to access liver molecular di...
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