Impact of Methylmercury and Other Heavy Metals Exposure

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:

• fishes.6 After the ingestion of contaminated fish or seafood, 95% chronic low dose Hg or MeHg exposure and neurodevelopmental
• depending on time of evaluation and the effects of different Descriptive statistics at baseline are shown in Table 1. The
• small proportion of the variability was explained, indicating Table 2 provides more details regarding the previous phases of
• Table 1. Descriptive statistics at delivery
• Sociodemographic characteristics of mothers and their children at delivery (baseline) (N = 767) (N = 632)
• Maternal BMI before pregnancy, mean (SD) (median) 22.6 (3.8) (21.9) 22.7 (3.8) (22.1)
• Maternal Intelligence Quotient, Raven’s Progressive Matrices, mean (SD) (median) 118.2 (11.7) (123) 118.9 (11.2) (125)
• Alcoholic drinks per week during pregnancy, number of glasses per week, mean (SD) (median) 1.5 (2.9) (0.3) 1.5 (2.8) (0.3)
• II),59 MT Reading Test,60 an Italian standardized test for reading umbilical cord tissue was not available (Table 2). The Oragene
• carried out (Table 3). collected and stored in vials at −80° degrees (Table 2), are
• Table 2. Questionnaires, test and biological samples collected before the 7 years old of children
• Table 3. Questionnaire, test, and biological samples collected at the follow-up of 7 years old of children
• self-administered Recall Questionnaire. Table 3 shows the Formatting of funding source: The study was supported by
• the study uses a range of neurocognitive tests, ensuring a deep Rada Toksikol. 2007;58:367–374.

Methods (brief)

• components are estimated through a Diet Diary. Child hair and urine are collected for determination of Hg level. In addition,
• socio-demographic and environmental interrelated factors is collection of child biological samples.
• arsenic (As), cadmium (Cd), lead (Pb), or their mixtures) affect in Previously collected data
• prospective cohort (NAC-II) in a coastal area of northeastern sociodemographics, and occupational information were collected
• associated with maternal IQ and with child’s fish intake that hair, blood, urine, cord blood, and breast milk were collected in
• and some subtests of NEuroPSYchological Assessment, (NEPSY Saliva samples are collected in those cases in which the
• carried out (Table 3). collected and stored in vials at −80° degrees (Table 2), are
• Biological samples The saliva and hair samples are collected in the hospital when
• Biological samples are collected and labelled with a unique the children come for the neurodevelopmental assessment.
• identification code. Urine and hair are collected for the evaluation Sample collection and storage are done according to a protocol
• of metal levels, and saliva samples are collected for genotyping developed by the Istituto Superiore di Sanità, and University of
• Urine samples are collected in a 50 mL Hg-free tube (BD previous collection of biological samples.51 Measurement
• For hair samples, the strands are gathered by cutting the hair and only polymorphisms based on current literature are analyzed.
• 200 mg). Each sample is stored at room temperature in a Hg-free, Tools for exposure measurement: evaluation of
• Table 2. Questionnaires, test and biological samples collected before the 7 years old of children
• Previous phases of the study Questionnaires, test or biological samples Information collected
• Table 3. Questionnaire, test, and biological samples collected at the follow-up of 7 years old of children
• Questionnaires, test or biological samples Information collected

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)
• Mercury
• Mercury
• Cadmium
• Lead
• Arsenic

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.