{"id":4505,"date":"2022-01-06T16:28:22","date_gmt":"2022-01-07T00:28:22","guid":{"rendered":"https:\/\/keck.usc.edu\/news\/household-pesticide-use-harms-infant-gross-motor-development-study-shows\/"},"modified":"2023-11-26T08:38:35","modified_gmt":"2023-11-26T16:38:35","slug":"household-pesticide-use-harms-infant-gross-motor-development-study-shows","status":"publish","type":"post","link":"https:\/\/keck.usc.edu\/news\/household-pesticide-use-harms-infant-gross-motor-development-study-shows\/","title":{"rendered":"Household pesticide use harms infant gross motor development, study shows"},"content":{"rendered":"\n \n \n\n\n\n\n\n\n\n
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\n\n \n Press Release<\/span>\n\n\n\n<\/div>\n \n \n
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Household pesticide use harms infant gross motor development, study shows<\/h1>\n\n\n<\/div>\n \n \n
\n \n January 06, 2022<\/span>\n <\/div>\n \n \n
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Ixel Hernandez-Castro<\/figcaption>\n <\/figure>\n \n \n \n\n<\/div>\n \n\n <\/div><\/div>\n\r\n\r\n\n\n \n \n\n\n\n\n\n\n\n
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Ixel Hernandez-Castro grew up next to a dairy farm near Fresno, California, where she remembers a plane would fly by on weekends and spray the fields surrounding her family home with pesticides.
\n\u201cThey\u2019d finish spraying, and we\u2019d run outside to play,\u201d said Hernandez-Castro, MPH, a doctoral student in epidemiology in the department of population and public health sciences at the Keck School of Medicine of USC. \u201cFor kids, there\u2019s a lot of touching the environment, rolling on the grass, eating while playing, so though I didn\u2019t know it at the time, I was being exposed to these pesticides.\u201d
\nThe experience motivated Hernandez-Castro to study the effects of household pesticide use on motor development in infants. Her research began as a capstone project for her master\u2019s of public health degree, which she earned in 2020 at USC, and continued as she pursued her doctorate.
\nHer findings, published recently in Paediatric and Perinatal Epidemiology, suggest that early post-natal household use of rodent and insect pesticides may harm infants\u2019 gross motor development in early childhood.<\/p>\n

\u201cIt\u2019s critical to understand the impacts of household pesticide use on infant motor development since household pesticide use may be a modifiable risk factor,\u201d said Hernandez-Castro, who is first author of the study. \u201cDeveloping safer alternatives for pest control could support healthier infant development.\u201d<\/p>\n

Researchers gave telephone questionnaires to 296 mothers with newborns in the Maternal and Developmental Risks from Environmental and Social Stressors (MADRES)<\/a> pregnancy cohort. Researchers assessed household pesticide use when the infants were three months old. Using the Ages and Stages Questionnaire, researchers assessed gross and fine motor development when the infants were six months old.
\nInfants with maternal-reported household use of rodent and insect pesticides had significantly reduced gross motor performance relative to infants with no reported use of household pesticides.
\n

\"Tracy
Tracy Bastain<\/figcaption><\/figure><\/p>\n

\u201cWe have known for a long time that many chemicals are harmful to the developing brain,\u201d said Tracy Bastain, PhD, MPH, an environmental epidemiologist and senior author of the study. \u201cThis is one of the first studies to provide evidence that household use of pesticides can harm infant psychomotor development. These results are particularly important for socioeconomically disadvantaged communities who often encounter poor housing conditions and jointly experience a high burden of exposures to environmental chemicals and adverse health effects.\u201d<\/p>\n

Participants for the MADRES cohort are recruited before they reach 30 weeks at three partner community health clinics and one private obstetrics and gynecology practice in Los Angeles. They are primarily low-income and Latina.
\nMilena Amadeus, who as project director for the MADRES study creates protocols for data collection, could empathize with mothers who are concerned for their babies.
\n\u201cIt\u2019s always scary as a parent when you have a child that is not following the normal growth or developmental trajectories because you just start wondering, \u2018Are they going to catch up? How will this affect them in the future?\u2019 \u201d said Amadeus, whose twins were born micro premature, before reaching 26 weeks gestation, and experienced delayed motor development as a result.
\n\u201cI was lucky enough that I had insurance. I had the ability to transport them to their appointments. I had the ability to be at home and help them with their development, and I don\u2019t know if a lot of our study families do,\u201d added Amadeus, whose twins are now healthy 7-year-olds. \u201cI have to acknowledge that I had help and I was privileged in the care that I was able to access.\u201d
\nIn addition to Hernandez-Castro and Bastain, other study authors are Sandra P. Eckel, Thomas Chavez, Mark Johnson, Brendan Grubbs, Shohreh F. Farzan, Rima Habre, and Carrie V. Breton, all of Keck School of Medicine of USC; Deborah Lerner of Eisner Health; Claudia M. Toledo-Corral of Keck School of Medicine and Cal State University Northridge; and Genevieve F. Dunton of Keck School of Medicine and USC\u2019s Department of Psychology.
\nThe research was supported by grants from the National Institute of Environmental Health Sciences, the National Institute for Minority Health and Health Disparities and the Environmental Protection Agency; the Southern California Environmental Health Sciences Center, and the Life course Approach to Developmental Repercussions of Environmental Agents on metabolic and Respiratory health (LA DREAMERs).<\/em><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n 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