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Determinants of maternal exposure to heavy metals and semi-metals: Focus on diet and lifestyle

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dc.contributor.authorGuimarĆ£es, J.
dc.contributor.authorBracchi, Isabella
dc.contributor.authorPinheiro, C.
dc.contributor.authorVieira, M.I.
dc.contributor.authorBarbosa, M. Oliveira
dc.contributor.authorAlmeida, A.
dc.contributor.authorAzevedo, R.
dc.contributor.authorPinto, Edgar
dc.contributor.authorPestana, D.
dc.contributor.authorCalhau, C.
dc.contributor.authorPrucha, M. do Carmo
dc.contributor.authorMartins, C.
dc.contributor.authorDias, C.C.
dc.contributor.authorAzevedo, L.F.R.
dc.contributor.authorRamalho, C.
dc.contributor.authorFernandes, Virginia Cruz
dc.contributor.authorKeating, E.
dc.contributor.authorFernandes, VirgĆ­nia
dc.contributor.authorPinto, Edgar
dc.date.accessioned2026-07-10T14:34:33Z
dc.date.available2026-07-10T14:34:33Z
dc.date.issued2025
dc.description.abstractKnowledge on determinants and health risks of toxic metal exposure in pregnancy is scarce in Portugal. This study aims to characterize food and lifestyle determinants of maternal exposure to Lead (Pb), Cadmium (Cd) and Arsenic (As). We included 1111 pregnant women undergoing routine 1sttrimester fetal ultrasound scan between 2018 and 2021 at CHUSJoĆ£o (Porto) and Hospital CUF Descobertas (Lisbon), who had single pregnancy and gave informed consent. At this stage, we collected diet and lifestyle information and a random urine sample for Pb, Cd and As quantification by ICP-MS. The majority of the sample had detectable urinary levels of toxic elements (n (%) and median (P25; P75) for Pb, Cd (in ng/g), and As (in Ī¼g/ g): 980 (88) and 547.2 (289.1; 975.9), 628 (57) and 142.5 (81.5; 234.9), 1080 (97) and 27.4 (14.9; 51.3), respectively). Cd and As urinary concentrations were positively correlated (r s =0.250, p<0.001). Smoking habits were associated with higher Pb (p=0.034) and Cd (p=0.008) levels and Pb levels had a negative weak correlation with birth head circumference (r s =-0.102; p=0.009). Regarding diet, the frequencies of fish and eggs intake were positively associated with Cd and As levels (p=0.005 and p< 0.001, respectively for fish intake; p=0.030 and p<0.001, respectively, for eggs intake). Women who reported consuming fish or eggs at least four times a week presented median (P25; P75) As levels of 35.2 (21.3; 71.9) or 35.9 (16.8; 57.2) Ī¼g/g, respectively. These concentrations exceed the commonly accepted reference range (ā‰„24.0 Ī¼g/g), observed in healthy populations. Our results evidence that, in pregnant women, smoking might be a determinant of Pb and Cd exposure and fish and eggs might be relevant determinants of Cd and As exposure. These data stress the need to study the consequences of Pb or As and Cd cumulative exposure on the health of the mother and the offspring.eng
dc.identifier.citationGuimarĆ£es, J., Bracchi, I., Pinheiro, C., Vieira, M. I., Oliveira-Barbosa, M., Almeida, A., Azevedo, R., Pinto, E., Pestana, D., Calhau, C., do Carmo Prucha, M., Martins, C., Dias, C. C., Azevedo, L. F. R., Ramalho, C., Cruz Fernandes, V., & Keating, E. (2025). Determinants of maternal exposure to heavy metals and semi-metals: Focus on diet and lifestyle. Clinical Nutrition ESPEN - Abstracts of the 47th ESPEN Congress, 69, 860. https://doi.org/10.1016/j.clnesp.2025.07.131
dc.identifier.eissn2405-4577
dc.identifier.urihttp://hdl.handle.net/10400.22/32572
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S2405457725018820?via%3Dihub
dc.rights.uriN/A
dc.subjectDiet
dc.titleDeterminants of maternal exposure to heavy metals and semi-metals: Focus on diet and lifestyleeng
dc.typeconference poster not in proceedings
dspace.entity.typePublication
oaire.citation.conferenceDate2025-09
oaire.citation.conferencePlaceCzech Republic
oaire.citation.startPage860
oaire.citation.titleClinical Nutrition ESPEN - Abstracts of the 47th ESPEN Congress
oaire.citation.volume69
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameFernandes
person.familyNamePinto
person.givenNameVirgĆ­nia
person.givenNameEdgar
person.identifier.ciencia-id5A16-3713-E0CE
person.identifier.ciencia-id271F-B7DF-8FAB
person.identifier.orcid0000-0003-3979-7523
person.identifier.orcid0000-0002-8021-4783
person.identifier.ridG-4985-2010
person.identifier.scopus-author-id37045954500
relation.isAuthorOfPublicatione30d74c3-1a3a-4e3e-ada0-5e79362cdd6e
relation.isAuthorOfPublicationeaf9fc86-1a1c-437f-adee-d28040aa7f2f
relation.isAuthorOfPublication.latestForDiscoverye30d74c3-1a3a-4e3e-ada0-5e79362cdd6e

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