Child and Adolescent Manganese Biomarkers and Adolescent Postural Balance in Marietta CARES Cohort Participants

Details

• Personal Author:
  Altman L ; Barnas M ; Bhattacharya, Amit ; Brunst KJ ; Burkle J ; Cox, Clinton ; Hilbert TJ ; Kannan K ; Martin KV ; McBride DE ; Palmer CD ; Parsons PJ ; Praamsma ML ; Smith DR ; Sucharew H ; Westneat S ; Wright R
• Description:
  Background: Manganese (Mn) plays a significant role in both human health and global industries. Epidemiological studies of exposed populations demonstrate a dose-dependent association between Mn and neuromotor effects ranging from subclinical effects to a clinically defined syndrome. However, little is known about the relationship between early life Mn biomarkers and adolescent postural balance. Objectives: This study investigated the associations between childhood and adolescent Mn biomarkers and adolescent postural balance in participants from the longitudinal Marietta Communities Actively Researching Exposures Study (CARES) cohort. Methods: Participants were recruited into CARES when they were 7-9 y old, and reenrolled at 13-18 years of age. At both time points, participants provided samples of blood, hair, and toenails that were analyzed for blood Mn and lead (Pb), serum cotinine, hair Mn, and toenail Mn. In adolescence, participants completed a postural balance assessment. Greater sway indicates postural instability (harmful effect), whereas lesser sway indicates postural stability (beneficial effect). Multivariable linear regression models were conducted to investigate the associations between childhood and adolescent Mn biomarkers and adolescent postural balance adjusted for age, sex, height-weight ratio, parent/caregiver intelligence quotient, socioeconomic status, blood Pb, and serum cotinine. Results: CARES participants who completed the adolescent postural balance assessment (n=123) were 98% White and 54% female and had a mean age of 16 y (range: 13-18 y). In both childhood and adolescence, higher Mn biomarker concentrations were significantly associated with greater adolescent sway measures. Supplemental analyses revealed sex-specific associations; higher childhood Mn biomarker concentrations were significantly associated with greater sway in females compared with males. Discussion: This study found childhood and adolescent Mn biomarkers were associated with subclinical neuromotor effects in adolescence. This study demonstrates postural balance as a sensitive measure to assess the association between Mn biomarkers and neuromotor function. [Description provided by NIOSH]
• Subjects:
  Biomarkers Cohort Studies Environmental Exposure Manganese Musculoskeletal System Occupational Health Safety
• Keywords:
  Children Cohort Studies Environmental Exposure Longitudinal Study Musculoskeletal System Neuromotor Function Posture
• ISSN:
  0091-6765
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; Kentucky ; New York ; Ohio ; OSHA Region 2 ; OSHA Region 4 ; OSHA Region 5 ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  132
• Issue:
  5
• NIOSHTIC Number:
  nn:20069775
• Citation:
  Environ Health Perspect 2024 May; 132(5):057010
• Contact Point Address:
  Danielle E. McBride, University of Kentucky, College of Public Health, 111 Washington Ave., Lexington, KY 40536 USA
• Email:
  dani.mcbride@uky.edu
• Federal Fiscal Year:
  2024
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Environmental Health Perspectives
• End Date:
  20260630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:17b6da904d03c1113d77d170a087993f27fd7ff7ea1dcb47e05c5b824bf8ec914508fe335271b71d62f498f7458df1bd4d99d313d63e4090b7dd4f85f7f404ea
• Download URL:
  https://stacks.cdc.gov/view/cdc/208131/cdc_208131_DS1.pdf
• File Type:
  [PDF - 589.40 KB ]