Fernando Barbosa Jr
Biographic Data
| ID | 6127940 |
|---|---|
| NAME | Fernando Barbosa Jr |
| GIVEN NAMES | Fernando |
| FAMILY NAME | Barbosa Jr |
| SIGNATURE | JR F B |
| AFFILIATIONS | Universidade de São Paulo |
| ORCID | 0000-0002-2498-0619 |
| VERIFIED | Yes |
| TOTAL WORKS | 14 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 14 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1997 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
Enfrentando a Indústria do Chumbo
This text is the result of an interview conducted by historians David Rosner and Gerald Markowitz with Herbert Needleman, a physician and pioneer in medical history who helped transform our understanding of the effects of lead (Pb) on children's health. David Rosner and Gerald Markowitz are well-known American historians and scholars, recognized for their work and contributions in the fields of Public Health and the History of Medicine, with seve…
Arsenic in Mining Areas
The emission and accumulation of toxic elements such as arsenic in various environmental compartments have become increasingly frequent primarily due to anthropogenic actions such as those observed in agricultural, industrial, and mining activities. An example of environmental arsenic contamination in Brazil exists in the city of Paracatu, MG, due to the operation of a gold mine. The aim of this work is to evaluate the routes and effects of arsen…
Artisanal Gem Mining in Brazil
Environmental and occupational exposure to toxic metals has led many people around the world to have serious health problems. Mining activities contribute to an increased risk of exposure to these elements. In this work, a study of environmental biomonitoring and routes of exposure to toxic metals in a region of artisanal mining was performed. This study was carried out in the district of Taquaral de Minas, located in the Jequitinhonha Valley in …
Degradation of Praguicide Disulfoton Using Nanocompost and Evaluation of Toxicological Effects
Organophosphates (OPPs) are an important element of modern agriculture; however, because they are being used excessively, their residues are leaching and accumulating in the soil and groundwater, contaminating aquatic and terrestrial food chains. An important OPP called disulfoton is frequently used to eradicate pests from a wide range of crops, including Brazil's coffee crops. Additionally, it does not easily degrade in the environment, and as s…
Abnormal Habituation of the Auditory Event-Related Potential P2 Component in Patients With Schizophrenia
Auditory event-related potentials (ERP) may serve as diagnostic tools for schizophrenia and inform on the susceptibility for this condition. Particularly, the examination of N1 and P2 components of the auditory ERP may shed light on the impairments of information processing streams in schizophrenia. However, the habituation properties (i.e., decreasing amplitude with the repeated presentation of an auditory stimulus) of these components remain po…
Biomonitoring of Exposure to Metals in a Population Residing in an Industrial Area in Brazil
This preliminary HBM study demonstrates feasibility for the total population, with results indicating representativeness of the target population
Recognizing Emotions through Facial Expressions
Experimental research examining emotional processes is typically based on the observation of images with affective content, including facial expressions. Future studies will benefit from databases with emotion-inducing stimuli in which characteristics of the stimuli potentially influencing results can be controlled. This study presents Portuguese normative data for the identification of seven facial expressions of emotions (plus a neutral face), …
Covid-19 Home Confinement Negatively Impacts Social Participation and Life Satisfaction
These preliminary findings elucidate the risk of psychosocial strain during the early COVID-19 home confinement period in 2020. Therefore, in order to mitigate the negative psychosocial effects of home confinement, implementation of national strategies focused on promoting social inclusion through a technology-based solution is strongly suggested
Evaluation of DNA Methylation Changes and Micronuclei in Workers Exposed to a Construction Environment
Methylation levels in tumor-suppressor genes and repetitive sequences have previously been used to study the relationship between environmental air pollution and epigenetic changes related to cancer. In this study, we measured the methylation profiles of the promoter regions CDKN2A , MLH1 and APC and the repetitive sequence LINE-1 in 59 workers exposed to the construction environment and in 49 unexposed workers. We also evaluated the micronuclei …
Evaluation of Toxic Metals and Essential Elements in Children with Learning Disabilities from a Rural Area of Southern Brazil
Children's exposure to metals can result in adverse effects such as cognitive function impairments. This study aimed to evaluate some toxic metals and levels of essential trace elements in blood, hair, and drinking water in children from a rural area of Southern Brazil. Cognitive ability and δ-aminolevulinate dehydratase (ALA-D) activity were evaluated. Oxidative stress was evaluated as a main mechanism of metal toxicity, through the quantificati…
Serum cadmium levels in a sample of blood donors in the Western Amazon, Brazil, 2010-2011
A cross-sectional study was conducted to determine the distribution of serum cadmium (Cd) levels in blood donors in Rio Branco, Acre State, Brazil. Blood samples were obtained from 922 volunteer blood donors from 18 to 65 years of age at the Hemoacre blood center in 2010-2011. Mean serum Cd was 0.37μg/L (95%CI: 0.33-0.41). Increased serum Cd was associated with lower schooling; individuals with less than five years of schooling showed a mean Cd o…
Visual acuity in fish consumers of the Brazilian Amazon
Objective To examine the associations between near and distant visual acuity and biomarkers of Hg, Pb, n -3 fatty acids and Se from the local diet of fish-eating communities of the Tapajós River in the Brazilian Amazon. Design Visuo-ocular health and biomarkers of Hg (hair, whole blood, plasma), Pb (whole blood), Se (whole blood and plasma) and n -3 fatty acids (plasma total phospholipids) were assessed in a cross-sectional study. Setting Lower T…
A critical review of biomarkers used for monitoring human exposure to lead
Lead concentration in whole blood (Blood-Pb) is the primary biomarker used to monitor exposure to this metallic element. However, the difficulty in assessing the exact nature of Pb exposure is dependent not so much on problems with current analytical methodologies, but rather on the complex toxicokinetics of Pb within various body compartments. If we are to differentiate more effectively between Pb that is stored in the body for years and Pb from…
Oportunidades y mercados del Nordeste Asiático
El tema señalado por los organizadores de este evento para mi intervención es el de oportunidades y mercados del Nordeste Asiático. El solo título ya genera, de por sí, una primera reacción. En efecto, la mención de oportunidades presupone aceptar —sin que medie ninguna discusión—, que nos encontramos frente a algo promisorio o, por lo menos, potencial.Esto que menciono y que es el mínimo ejercicio crítico en el que debe cimentarse el trabajo aca…
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Oportunidades y mercados del Nordeste Asiático
El tema señalado por los organizadores de este evento para mi intervención es el de oportunidades y mercados del Nordeste Asiático. El solo título ya genera, de por sí, una primera reacción. En efecto, la mención de oportunidades presupone aceptar —sin que medie ninguna discusión—, que nos encontramos frente a algo promisorio o, por lo menos, potencial.Esto que menciono y que es el mínimo ejercicio crítico en el que debe cimentarse el trabajo aca…
A critical review of biomarkers used for monitoring human exposure to lead
Lead concentration in whole blood (Blood-Pb) is the primary biomarker used to monitor exposure to this metallic element. However, the difficulty in assessing the exact nature of Pb exposure is dependent not so much on problems with current analytical methodologies, but rather on the complex toxicokinetics of Pb within various body compartments. If we are to differentiate more effectively between Pb that is stored in the body for years and Pb from…
Visual acuity in fish consumers of the Brazilian Amazon
Objective To examine the associations between near and distant visual acuity and biomarkers of Hg, Pb, n -3 fatty acids and Se from the local diet of fish-eating communities of the Tapajós River in the Brazilian Amazon. Design Visuo-ocular health and biomarkers of Hg (hair, whole blood, plasma), Pb (whole blood), Se (whole blood and plasma) and n -3 fatty acids (plasma total phospholipids) were assessed in a cross-sectional study. Setting Lower T…
Evaluation of Toxic Metals and Essential Elements in Children with Learning Disabilities from a Rural Area of Southern Brazil
Children's exposure to metals can result in adverse effects such as cognitive function impairments. This study aimed to evaluate some toxic metals and levels of essential trace elements in blood, hair, and drinking water in children from a rural area of Southern Brazil. Cognitive ability and δ-aminolevulinate dehydratase (ALA-D) activity were evaluated. Oxidative stress was evaluated as a main mechanism of metal toxicity, through the quantificati…
Serum cadmium levels in a sample of blood donors in the Western Amazon, Brazil, 2010-2011
A cross-sectional study was conducted to determine the distribution of serum cadmium (Cd) levels in blood donors in Rio Branco, Acre State, Brazil. Blood samples were obtained from 922 volunteer blood donors from 18 to 65 years of age at the Hemoacre blood center in 2010-2011. Mean serum Cd was 0.37μg/L (95%CI: 0.33-0.41). Increased serum Cd was associated with lower schooling; individuals with less than five years of schooling showed a mean Cd o…
Evaluation of DNA Methylation Changes and Micronuclei in Workers Exposed to a Construction Environment
Methylation levels in tumor-suppressor genes and repetitive sequences have previously been used to study the relationship between environmental air pollution and epigenetic changes related to cancer. In this study, we measured the methylation profiles of the promoter regions CDKN2A , MLH1 and APC and the repetitive sequence LINE-1 in 59 workers exposed to the construction environment and in 49 unexposed workers. We also evaluated the micronuclei …
Recognizing Emotions through Facial Expressions
Experimental research examining emotional processes is typically based on the observation of images with affective content, including facial expressions. Future studies will benefit from databases with emotion-inducing stimuli in which characteristics of the stimuli potentially influencing results can be controlled. This study presents Portuguese normative data for the identification of seven facial expressions of emotions (plus a neutral face), …
Covid-19 Home Confinement Negatively Impacts Social Participation and Life Satisfaction
These preliminary findings elucidate the risk of psychosocial strain during the early COVID-19 home confinement period in 2020. Therefore, in order to mitigate the negative psychosocial effects of home confinement, implementation of national strategies focused on promoting social inclusion through a technology-based solution is strongly suggested
Abnormal Habituation of the Auditory Event-Related Potential P2 Component in Patients With Schizophrenia
Auditory event-related potentials (ERP) may serve as diagnostic tools for schizophrenia and inform on the susceptibility for this condition. Particularly, the examination of N1 and P2 components of the auditory ERP may shed light on the impairments of information processing streams in schizophrenia. However, the habituation properties (i.e., decreasing amplitude with the repeated presentation of an auditory stimulus) of these components remain po…
Biomonitoring of Exposure to Metals in a Population Residing in an Industrial Area in Brazil
This preliminary HBM study demonstrates feasibility for the total population, with results indicating representativeness of the target population
Degradation of Praguicide Disulfoton Using Nanocompost and Evaluation of Toxicological Effects
Organophosphates (OPPs) are an important element of modern agriculture; however, because they are being used excessively, their residues are leaching and accumulating in the soil and groundwater, contaminating aquatic and terrestrial food chains. An important OPP called disulfoton is frequently used to eradicate pests from a wide range of crops, including Brazil's coffee crops. Additionally, it does not easily degrade in the environment, and as s…
Arsenic in Mining Areas
The emission and accumulation of toxic elements such as arsenic in various environmental compartments have become increasingly frequent primarily due to anthropogenic actions such as those observed in agricultural, industrial, and mining activities. An example of environmental arsenic contamination in Brazil exists in the city of Paracatu, MG, due to the operation of a gold mine. The aim of this work is to evaluate the routes and effects of arsen…
Artisanal Gem Mining in Brazil
Environmental and occupational exposure to toxic metals has led many people around the world to have serious health problems. Mining activities contribute to an increased risk of exposure to these elements. In this work, a study of environmental biomonitoring and routes of exposure to toxic metals in a region of artisanal mining was performed. This study was carried out in the district of Taquaral de Minas, located in the Jequitinhonha Valley in …
Enfrentando a Indústria do Chumbo
This text is the result of an interview conducted by historians David Rosner and Gerald Markowitz with Herbert Needleman, a physician and pioneer in medical history who helped transform our understanding of the effects of lead (Pb) on children's health. David Rosner and Gerald Markowitz are well-known American historians and scholars, recognized for their work and contributions in the fields of Public Health and the History of Medicine, with seve…
Environmental health (9 works) · Medicine (9 works) · Biology (7 works) · Heavy Metal Exposure and Toxicity (7 works) · Heavy metals in environment (6 works) · Chemistry (5 works) · Psychology (5 works) · Internal Medicine (4 works) · Pathology (4 works) · Population (4 works)