Cited by 145Air Quality and Health ImpactsHealth, Environment, Cognitive AgingIndoor Air Quality and Microbial Exposure

Mitochondrial oxidative DNA damage and exposure to particulate air pollution in mother-newborn pairs

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Grevendonk, Lotte, Janssen, Bram G., Vanpoucke, Charlotte, Lefebvre, Wouter, Hoxha, Mirjam, Bollati, Valentina, Nawrot, Tim S.·2016·Environmental Health

Abstract

BACKGROUND: Studies emphasize the importance of particulate matter (PM) in the formation of reactive oxygen species and inflammation. We hypothesized that PM exposure during different time windows in pregnancy influences mitochondrial 8-hydroxy-2'-deoxyguanosine (8-OHdG) levels, which is an established biomarker for oxidative stress, in both maternal and foetal blood. METHODS: We investigated maternal (n = 224) and cord blood (n = 293) from mother-newborn pairs that were enrolled in the ENVIRONAGE birth cohort. We determined mitochondrial 8-OHdG by quantitative polymerase chain reaction (qPCR). Multivariable regression models were used to assess the association between mitochondrial 8-OHdG with PM10 and PM2.5 exposure over various time windows during pregnancy. RESULTS: In multivariable analysis, PM10 exposure during the entire pregnancy was positively associated with levels of mitochondrial 8-OHdG in maternal blood. For an IQR increment in PM10 exposure an increase of 18.3 % (95 % confidence interval (CI): 5.6 to 33.4 %, p = 0.004) in 8-OHdG was observed. PM10 exposure during the last trimester of pregnancy was positively associated with levels of 8-OHdG (28.1, 95 % CI: 8.6 to 51.2 %, p = 0.004, for an IQR increment in PM10). In a similar way, PM2.5 exposure was significantly associated with an increase of mitochondrial 8-OHdG levels in maternal blood during the entire pregnancy (13.9, 95 % CI: 0.4 to 29.4 %, p = 0.04 for an IQR increment in PM2.5 exposure) and third trimester of pregnancy (28.1, 95 % CI: 3.6 to 58.4 %, p = 0.02 for an IQR increment in PM2.5 exposure). In umbilical cord blood, 8-OHdG levels were significantly associated with PM10 exposure during first and second trimester of pregnancy with respectively an increase of 23.0 % (95 % CI: 5.9 to 42.8 %, p = 0.007) and 16.6 % (95 % CI: 1.8 to 33.5 %, p = 0.03) for an IQR increment in PM10 exposure. CONCLUSIONS: We found PM-associated increased mitochondrial oxidative DNA damage during pregnancy in both mothers and their newborns. Accordingly, our study showed that particulate air pollution exposure in early life plays a role in increasing systemic oxidative stress, at the level of the mitochondria, both in mother and foetus.

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  1. [8]de Souza-Pinto NC Eide L Hogue BA Thybo T Stevnsner T Seeberg E Repair of 8-oxodeoxyguanosine lesions in mitochondrial dna depends on the oxoguanine dna glycosylase (OGG1) gene and 8-oxoguanine accumulates in the mitochondrial dna of OGG1-defective mice Cancer Res 2001 61 14 5378 81 11454679
  2. [13]Sorensen M Autrup H Hertel O Wallin H Knudsen LE Loft S Personal exposure to PM2.5 and biomarkers of DNA damage Cancer Epidemiol Biomarkers Prev 2003 12 3 191 6 12646506

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Authors
Grevendonk, L., Janssen, B. G., Vanpoucke, C., Lefebvre, W., Hoxha, M., Bollati, V., & Nawrot, T. S.
Affiliations
  • University of Milan (IT)
  • Hasselt University (BE)
  • Flemish Institute for Technological Research (BE)
Corresponding author
Nawrot, Tim S.
Venue
Environmental Health
Published
2016-01-20
Volume
15
Issue
1
Pages
10-10
ISSN
1476-069X (ISSN-L)
OpenAlex
W2286090902
Cited by
145
References
43
Citations by year
2026: 6 · 2025: 17 · 2024: 13 · 2023: 16 · 2022: 16 · 2021: 28 · 2020: 8 · 2019: 13 · 2018: 12 · 2017: 12 · 2016: 4
FWCI
8.59
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Environmental Health (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Lirias (KU Leuven) (submittedVersion, cc-by)
  • Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano) (submittedVersion, other-oa)
  • Document Server@UHasselt (UHasselt) (submittedVersion, cc-by)
Funders
  • EU Programme “Ideas” (ERC-2011-StG 282413)
  • EU Program “Ideas” (ERC-2012-StG 310898)
  • Flemish Scientific Fund (FWO) (N1516112/G.0.873.11.N.10)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Air Quality and Health Impacts
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Health, Environment, Cognitive Aging
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Indoor Air Quality and Microbial Exposure
Keywords
particulate matter, PM10, PM2.5, prenatal air pollution exposure, 8-hydroxy-2'-deoxyguanosine, oxidative stress, maternal blood, umbilical cord blood, pregnancy trimesters, ENVIRONAGE birth cohort, prenatal exposure, birth cohort studies, biomarkers of exposure, inflammation, reactive oxygen species
MeSH terms
Adult, Air Pollutants, DNA, Mitochondrial, Environmental Exposure, Female, Fetal Blood, Humans, Infant, Newborn, Placenta, Pregnancy, Cohort Studies, Maternal Exposure, Particulate Matter, Young Adult

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