Maternal–Fetal Exposure to Oncoelements and Their Oxidative

Overview

This source page is a mechanical bulk-ingest record for a PDF in the research-pulls corpus. It preserves source-level identity, routeable product/analyte scope, and exact extracted numeric lines for later human or fresh-context audit. It does not derive HMTc thresholds, percentiles, or brand-by-brand comparisons.

Key numbers

The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:

• slowly replaced tissues, such as bones, teeth, and nails, it ranges from 2.3 to 27 years. Lead
• (e.g., ≥896.59 µg/L) may mitigate the negative effects of prenatal mercury exposure. Since
• single cigarette can range from 0.4 to 1.3 µg, and passive smoking is also associated with a
• exposure (≥4.70 µg/g creatinine), is associated with approximately a 73% increased risk of
• Table 1 presents the main pathways of action of oncoelements, molecular mechanisms,
• Table 1. Oncoelements—molecular mechanisms and significance for pregnancy in the context of
• Table 2 provides a comparative overview of the maternal and fetal effects of indi-
• Table 3 summarizes reported associations between trace element status and maternal
• Table 2. Comparison of the effects of selected oncoelements on maternal and fetal parameters.
• Table 3. Comparative summary of reported associations (direction and qualitative consistency) between individual oncoelements and maternal pregnancy outcomes
• strategies for minimizing preventable exposures to environmental pollutants (12,82–84).
• 6. Bhattacharya, S. Can the Toxic Heavy Metals Be Beneficial at Trace Levels? Understanding Their Outranged Biological Functions.

Methods (brief)

• Umbilical cord blood, collected at delivery, is increasingly utilized in prenatal research as a
• acid (DMA) and monomethylarsonic acid (MMA). However, incomplete methylation may
• that higher exposure—measured in urine samples—corresponding to the highest tertile of
• cells (HSCs) and can be collected in a non-invasive, safe, and ethically acceptable manner,
• techniques (e.g., inductively coupled plasma mass spectrometry (ICP-MS) vs. atomic
• absorption spectrometry (AAS)), sample preparation, and instrumentation (5,16,76).
• sample matrices, and timing of biomarker assessment. In addition, the majority of studies
• are limited by small sample sizes, lack of harmonized methodologies, and insufficient
• DMA Dimethylarsinic Acid (DMA(V))
• 19. Nurchi, V.M.; Djordjevic, A.B.; Crisponi, G.; Alexander, J.; Bjørklund, G.; Aaseth, J. Arsenic Toxicity: Molecular Targets and
• 21. Bjørklund, G.; Mutter, J.; Aaseth, J. Metal chelators and neurotoxicity: Lead, mercury, and arsenic. Arch. Toxicol. 2017, 91, 3787–3797.
• 22. Bjørklund, G.; Tippairote, T.; Rahaman, M.S.; Aaseth, J. Developmental toxicity of arsenic: A drift from the classical dose-response
• 83. Friedman, C.; Dabelea, D.; Thomas, D.S.K.; Peel, J.L.; Adgate, J.L.; Magzamen, S.; Martenies, S.E.; Allshouse, W.B.; Starling, A.P.

Implications

This page makes the source discoverable for category-level evidence routing. Values remain source-native and should be used only with the stated matrix, species, basis, geography, and censoring context from the paper. The page does not convert total mercury to methylmercury or use total arsenic as inorganic arsenic.

Wiki pages this source may touch

• Fish — marine, non-predatory (sardines, anchovies, salmon, cod)
• Shellfish (shrimp, crab, lobster, clams, oysters, mussels)
• Mercury
• Cadmium
• Lead
• Arsenic
• Nickel
• Chromium

Verification notes

• Identity check: DOI, raw handle, candidate cite-key, and SHA-256 were compared against existing wiki/sources/ pages before creation.
• Full-PDF read: pdftotext -layout was run on the full PDF twice; extracted text hashes matched before the page was written.
• Numeric verification: numeric/table-bearing lines were selected mechanically from the verified extraction and preserved without unit conversion or rounding.
• Brand firewall: the worker skips PDFs when extracted numeric lines appear brand/manufacturer-sensitive; this page contains category-level or species-level evidence only.
• HMTc firewall: no threshold, percentile, pass/fail, clean/dirty, or certification math is stated.

Update history

The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.