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Browsing by UP Author "Obida, Muvhulawa"

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Assessing the external exposome using wearable passive samplers and high-resolution mass spectrometry among South African children participating in the VHEMBE study

Koelmel, Jeremy P.; Lin, Elizabeth Z.; DeLay, Kayley; Williams, Antony J.; Zhou, Yakun; Bornman, Maria S. (Riana); Obida, Muvhulawa; Chevrier, Jonathan; Godri Pollitt, Krystal J. (American Chemical Society, 2022-01)

Children in low- and middle-income countries are often exposed to higher levels of chemicals and are more vulnerable to the health effects of air pollution. Little is known about the diversity, toxicity, and dynamics of ...
Association between prenatal exposure to multiple insecticides and child body weight and body composition in the VHEMBE South African birth cohort

Coker, Eric; Chevrier, Jonathan; Rauch, Stephen; Bradman, Asa; Obida, Muvhulawa; Crause, Madelein; Bornman, Maria S. (Riana); Eskenazi, Brenda (Elsevier, 2018-04)

BACKGROUND : Pregnant women may be co-exposed to multiple insecticides in regions where both pyrethroids and dichlorodiphenyltrichloroethane (DDT) are used for indoor residual spraying (IRS) for malaria control. Despite ...
Associations between prenatal exposure to DDT and DDE and allergy symptoms and diagnoses in the Venda Health Examination of Mothers, Babies and their Environment (VHEMBE), South Africa

Huq, Fahmida; Obida, Muvhulawa; Bornman, Maria S. (Riana); Di Lenardo, Thomas Z.; Chevrier, Jonathan (Elsevier, 2020-06)

Dichlorodiphenyl trichloroethane (DDT) is an organochlorine insecticide that is banned internationally except for use as part of Indoor Residual Spraying (IRS) programs to control malaria. Although animal studies show that ...
Associations of maternal exposure to dichlorodiphenyltrichloroethane and pyrethroids with birth outcomes among participants in the Venda health examination of mothers, babies and their environment residing in an area sprayed for malaria control

Chevrier, Jonathan; Rauch, Stephen; Crause, Madelein; Obida, Muvhulawa; Gaspar, Fraser W.; Bornman, Maria S. (Riana) (Oxford University Press, 2019-01)

Although effective in controlling malaria, indoor residual spraying results in elevated exposure to insecticides such as dichlorodiphenyltrichloroethane (DDT) and pyrethroids. These chemicals cross the placenta, but no ...
A community-based education programme to reduce insecticide exposure from indoor residual spraying in Limpopo, South Africa

Eskenazi, Brenda; Levine, David I.; Rauch, Stephen; Obida, Muvhulawa; Crause, Madelein; Bornman, Maria S. (Riana); Chevrier, Jonathan (BioMed Central (BMC), 2019-06)

BACKGROUND: Indoor residual spraying (IRS), the coating of interior walls of houses with insecticides, is common in malaria-endemic areas. While important in malaria control, IRS potentially exposes residents to harmful ...
Dichlorodiphenyltrichloroethane exposure and anogenital distance in the Venda Health Examination of Mothers, Babies and their Environment (VHEMBE) birth cohort study, South Africa

Bornman, Maria S. (Riana); Chevrier, J.; Rauch, S.; Crause, Madelein; Obida, Muvhulawa; Sathyanarayana, S.; Barr, D.B.; Eskenazi, B. (Wiley, 2016-07)

Dichlorodiphenyltrichloroethane (DDT) is used for malaria control by 10 countries, nine of which are in Africa. Technical DDT contains various isomers with 65-80% insecticidal p,p'-DDT and 15-21% o,p'-DDT, an estrogenic ...
Exposure to lead and vaccine-specific IgG titers in South African children participating in the Venda Health Examination of Mothers, Babies and their Environment (VHEMBE) : a longitudinal study

Di Lenardo, Thomas Z.; Ward, Brian J.; Pillet, Stephane; Mann, Koren; Bornman, Maria S. (Riana); Obida, Muvhulawa; Chevrier, Jonathan (Elsevier, 2020-01)

BACKGROUND : While successes have been achieved in reducing global exposure to lead, few studies have investigated the potential health effects of low-level exposure (e.g. blood lead levels [BLLs] below the CDC reference ...
In-utero exposure to DDT and pyrethroids and child behavioral and emotional problems at 2 years of age in the VHEMBE cohort, South Africa

An, Sookee; Rauch, Stephen A.; Maphula, Angelina; Obida, Muvhulawa; Kogut, Katherine; Bornman, Maria S. (Riana); Chevrier, Jonathan; Eskenazi, Brenda (Elsevier, 2022-11)

BACKGROUND : Half the world's population is at risk for malaria. Indoor residual spraying (IRS) with insecticides has been effective in controlling malaria, yet the potential neurotoxicity of these insecticides is of ...
Maternal exposure to DDT, DDE, and pyrethroid insecticides for malaria vector control and hypospadias in the VHEMBE birth cohort study, Limpopo, South Africa

Bornman, Maria S. (Riana); Acerini, Carlo L.; Chevrier, Jonathan; Rauch, Stephen A.; Crause, Madelein; Obida, Muvhulawa; Eskenazi, Brenda (Elsevier, 2022-11)

Hypospadias is the ectopic opening of the urethra on the penis or scrotum. Exposure to estrogenic and/or anti-androgenic chemicals in utero may play an etiologic role. DDT and the pyrethroids cypermethrin and deltamethrin, ...
Prenatal exposure to DDT and pyrethroids for malaria control and child neurodevelopment : the VHEMBE Cohort, South Africa

Eskenazi, Brenda; An, Sookee; Rauch, Stephen A.; Coker, Eric S.; Maphula, Angelina; Obida, Muvhulawa; Crause, Madelein; Kogut, Katherine R.; Bornman, Maria S. (Riana); Chevrier, Jonathan (National Institute of Environmental Health Sciences, 2018-04-06)

BACKGROUND : Although indoor residual spraying (IRS) with dichlorodiphenyltrichloroethane (DDT) and pyrethroids effectively controls malaria, it potentially increases human exposure to these insecticides. Previous studies ...
Prenatal exposure to insecticides and child cardiometabolic risk factors in the VHEMBE birth cohort

Kim, Joanne; Yang, Seungmi; Moodie, Erica EM.; Obida, Muvhulawa; Bornman, Maria S. (Riana); Eskenazi, Brenda; Chevrier, Jonathan (Wolters Kluwer Health, 2022-04)

BACKGROUND : As part of malaria control programs, many countries spray dichlorodiphenyltrichloroethane (DDT) or pyrethroid insecticides inside dwellings in a practice called indoor residual spraying that results in high ...
Prenatal exposure to insecticides and weight trajectories among South African children in the VHEMBE birth cohort

Kim, Joanne; Yang, Seungmi; Moodie, Erica E.M.; Obida, Muvhulawa; Bornman, Maria S. (Riana); Eskenazi, Brenda; Chevrier, Jonathan (Lippincott Williams and Wilkins, 2022-07)

BACKGROUND : Dichlorodiphenyltrichloroethane (DDT) or pyrethroid insecticides are sprayed inside dwellings for malaria vector control, resulting in high exposure to millions of people, including pregnant women. These ...
Seasonality of antenatal care attendance, maternal dietary intake, and fetal growth in the VHEMBE birth cohort, South Africa

Fahey, Carolyn A.; Chevrier, Jonathan; Crause, Madelein; Obida, Muvhulawa; Bornman, Maria S. (Riana); Eskenazi, Brenda (Public Library of Science, 2019-09-25)

BACKGROUND : Seasonality of food availability, physical activity, and infections commonly occurs within rural communities in low and middle-income countries with distinct rainy seasons. To better understand the ...
Sex and poverty modify associations between maternal peripartum concentrations of DDT/E and pyrethroid metabolites and thyroid hormone levels in neonates participating in the VHEMBE study, South Africa

Chevrier, Jonathan; Rauch, Stephen; Obida, Muvhulawa; Crause, Madelein; Bornman, Maria S. (Riana); Eskenazi, Brenda (Elsevier, 2019-10)

Indoor Residual Spraying (IRS), the application of insecticides on the inside walls of dwellings, is used by 84 countries for malaria control. Although effective in preventing malaria, this practice results in elevated ...
Targeted screening of 11 bisphenols and 7 plasticizers in food composites from Canada and South Africa

Tian, Lei; Zheng, Jingyun; Pineda, Marco; Yargeau, Viviane; Furlong, Daniel; Chevrier, Jonathan; Bornman, Maria S. (Riana); Obida, Muvhulawa; Goodyer, Cindy Gates; Bayen, Stephane (Elsevier, 2022-08)

A sensitive method based on ultrasound-assisted liquid extraction coupled with liquid chromatography was applied to screen 18 plastic-related contaminants in 168 food composites (namely fish fillets, chicken breast, canned ...
Undisturbed dust as a metric of long-term indoor insecticide exposure : residential DDT contamination from indoor residual spraying and its association with serum levels in the VHEMBE cohort

Gaspar, Fraser W.; Chevrier, Jonathan; Bornman, Maria S. (Riana); Crause, Madelein; Obida, Muvhulawa; Barr, Dana Boyd; Bradman, Asa; Bouwman, Henk; Eskenazi, Brenda (Elsevier, 2015-12)

Although approximately 123 million people may be exposed to high levels of insecticides through the use of indoor residual spraying (IRS) for malaria control, fewstudies exist on indoor insecticide contamination due to ...

Browsing by UP Author "Obida, Muvhulawa"

Browsing by UP Author "Obida, Muvhulawa"

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