Production, use, and fate of all plastics ever made.
Roland Geyer, Jenna R Jambeck, Kara Lavender Law
https://pubmed.ncbi.nlm.nih.gov/28776036Actively Recruiting
Led by Johns Hopkins Bloomberg School of Public Health · Updated on 2025-06-10
40
Participants Needed
1
Research Sites
30 weeks
Total Duration
J
Johns Hopkins Bloomberg School of Public Health
Lead Sponsor
E
Emory University
Collaborating Sponsor
Researchers are evaluating micro- and nano-plastic (MNP) exposures among mothers and their infants at 1 or 3 months postpartum to understand how these plastics may affect infant development and breastfeeding. The study focuses on identifying the types of MNPs present in maternal breastmilk, blood, and infant stool, and explores associations with infant growth, environmental factors, and lifestyle characteristics. This observational study recruits healthy, exclusively breastfeeding mother-infant pairs from diverse geographic areas in Baltimore, Maryland. Participants provide biological samples including maternal blood, breastmilk, and stool, as well as infant stool samples. Mothers use a silicone breast pump for milk collection, and special supplies are provided to avoid plastic contamination during stool collection at home or the clinical visit. Dietary information is gathered through questionnaires and recalls, and infants are weighed before and after feeding to estimate milk intake. Maternal and infant physical measurements such as height, weight, length, and skinfold thickness are recorded using standard equipment and methods. During the study, participants complete several questionnaires about medical history, lifestyle, and environmental exposures. Biological samples are analyzed for microplastic composition and microbiome sequencing, with advanced laboratory techniques used to assess microbial and metabolite profiles. Infant growth measurements and maternal health indicators, including blood pressure, are monitored. The study's main outcomes include microplastic presence in samples and infant growth metrics, with data collection and participant involvement spanning the postpartum period of 1 or 3 months plus or minus two weeks.
CONDITIONS
Developmental Impacts of Microplastics Exposure in Early Life
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You will not qualify if you...
Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Up to 2 weeks around the 1 or 3 months postpartum timepoint
Participants provide biological samples and complete assessments related to microplastics exposure and developmental measurements at 1 or 3 months postpartum (+/- 2 weeks). This includes home stool sample collection, breast milk expression, blood draws, dietary recalls, and infant feeding measurements.
1 clinical visit and home sample collections with phone assessments
Total: 1 location
1
East Baltimore Pediatric Inpatient and Outpatient Clinical Research Unit
Baltimore, Maryland, United States, 21287
Actively Recruiting
T
Tanya L Alderete, PhD
C
Charlotte Haslett
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
2
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