Component
Roux-en-Y gastric bypass
Roux-en-Y gastric bypass. Species, exposure and limitations are retained in each linked claim.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What it acts on
Copper deficiency was identified in 13 of 136 clinic patients after Roux-en-Y gastric bypass; many had anemia, leukopenia or neuromuscular abnormalities.
Experimental context and source evidence
- availability_state
- nutrient_deficiency Imported condition classification; unverified.
- evidence_span
- {"source_cache": "artifacts/copper-research/21876546.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "29b1cc8c0170160c3a7b3449d807bbf309f6e1fa230e453fbfa467fe23fa71c8", "start_char": 0, "end_char": 1842, "text_sha256": "29b1cc8c0170160c3a7b3449d807bbf309f6e1fa230e453fbfa467fe23fa71c8"}
- experimental_model
- Post-Roux-en-Y clinic cohort and longitudinal subset
- exposure
- 136-person clinic cohort; separate longitudinal group of sixteen
- limitations
- The study observed postoperative deficiency; it did not directly quantify copper absorption in these participants. The 9.6% prevalence is specific to this clinic cohort.
- nutrient_topic
- Copper research collection; topical membership is not evidence of a direct dietary effect. · Copper
- organism
- Human
- plain_language
- After this surgery, some patients developed a clinically important copper shortage.
- primary_references
- [copper-p21876546] Incidence and prevalence of copper deficiency following roux-en-y gastric bypass surgery. (2012). https://pubmed.ncbi.nlm.nih.gov/21876546/ DOI: 10.1038/ijo.2011.159
- tissue_or_cell_type
- Blood and clinical findings after gastric bypass
- trigger_kind
- nutrient_deficiency Imported condition classification; unverified.
Copper: transport, cuproenzymes, deficiency, excess and nutrient interactions (2026-09-17) · lines 1391–1402
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Post-Roux-en-Y clinic cohort and longitudinal subset · source_derived_draft · unverified_draft
### copper-bypass-lowcu Copper deficiency was identified in 13 of 136 clinic patients after Roux-en-Y gastric bypass; many had anemia, leukopenia or neuromuscular abnormalities. Condition category: nutrient_deficiency nutrient_topic: Copper research collection; topical membership is not evidence of a direct dietary effect. plain_language: After this surgery, some patients developed a clinically important copper shortage. organism: Human tissue_or_cell_type: Blood and clinical findings after gastric bypass experimental_model: Post-Roux-en-Y clinic cohort and longitudinal subset limitations: The study observed postoperative deficiency; it did not directly quantify copper absorption in these participants. The 9.6% prevalence is specific to this clinic cohort. exposure: 136-person clinic cohort; separate longitudinal group of sixteen evidence_span: {"source_cache": "artifacts/copper-research/21876546.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "29b1cc8c0170160c3a7b3449d807bbf309f6e1fa230e453fbfa467fe23fa71c8", "start_char": 0, "end_char": 1842, "text_sha256": "29b1cc8c0170160c3a7b3449d807bbf309f6e1fa230e453fbfa467fe23fa71c8"} [copper-p21876546] Incidence and prevalence of copper deficiency following roux-en-y gastric bypass surgery. (2012). https://pubmed.ncbi.nlm.nih.gov/21876546/ DOI: 10.1038/ijo.2011.159
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.