physiological changes that relate to the exposure of an organism to a chemical. Accordingly,

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:

• organisms commonly selected for toxicity testing are earthworms (Table 1), particularly the genus Eisenia, which
• earthworms (Table 1), particularly the genus Eisenia, which are a classic model organism for
• spectrometry (GC-MS), as thoroughly reported in Table 1, both allowing the identification of
• Table 1 Metabolic responses of test organism following exposure to selected environmental contaminants in contact
• increasing. Table 2 summarizes some of the most relevant databases operative and the
• Table 2 Selected metabolomic databases.
• Table 3 Summary of metabolites and metabolic pathways representative of biological responses to environmental
• metabolic pathways in living organisms (Table 3), including glycolysis, trycarboxylic acids
• (Table 1). Nevertheless, research conducted up to date has yielded a number of biomarkers
• with some of the studies listed in Table 1. Ecotoxigenomics can also benefit from the incorpo‐

Methods (brief)

• The isolated extracts usually might not require further sample treatment prior to analysis,
• mented high pressure liquid chromatography (HPLC) and ultra high pressure liquid chro‐
• matography (UPLC) coupled with mass spectrometry detector (MS) for the assessment of
• (lys, Glu), Dmaltose McKelvie et al. (2011)
• (Ala, Gly, ATP), Dmaltose Yuk et al. (2011)
• H NMR, HPLC- malate, glutamine,
• lactate, Val, Leu), Dmaltose 2012)
• ative phase aims to find groups, clusters and outliers in metabolites and samples studied while
• variables (Trygg et al., 2006). The organization of samples in PCA scores plots is based on the
• PC2) allows for a visual examination of the relationship between the samples based on their
• to the discrimination of the sample classes along one component is represented by the intensity
• samples classification, with pre-defined variables added to maximize the separation between
• the sample classes and to construct predictive models. The predefined variables for PLS-
• development closely related to the evolution of mass spectrometry instrumentation and data
• LIPID MAPS http://www.lipidmaps.org/
• design and accompanying metadata reporting on the laboratory workflow from sample
• ration of further analytical techniques. Techniques based on mass spectrometry are certainly
• particularly if extremely high sample throughput is required (Bundy et al., 2009). Although

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

• Shellfish (shrimp, crab, lobster, clams, oysters, mussels)
• Baby Sunscreen, Mineral (ZnO + TiO2)
• Mercury
• Cadmium
• Arsenic
• Nickel

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.