Component
Hemoglobin oxidative damage
Experimentally measured oxidative injury to hemoglobin.
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 acts on it
Added glutathione failed to protect hemoglobin during oxidant challenge of selenium-deficient rat hemolyzates with very low glutathione-peroxidase activity.
Experimental context and source evidence
- availability_state
- nutrient_deficiency Imported condition classification; unverified.
- cross_nutrient
- Explains why B2-dependent GSH recycling and selenium-dependent GSH use are distinct requirements.
- evidence_location
- Abstract
- experimental_model
- Erythrocyte hemolyzates from selenium-deficient rats; glutathione addition during peroxide/ascorbate challenge and 75Se enzyme purification.
- exposure
- Selenium-deficient diet, then ex-vivo oxidant and glutathione exposure
- limitations
- Separate from FAD-dependent GSR recycling; neither riboflavin nor combined nutrient repletion was tested.
- nutrient_topic
- Riboflavin research collection; topical membership is not evidence of a direct dietary effect. · Riboflavin (vitamin B2)
- organism
- Rattus norvegicus
- plain_language
- Supplying glutathione did not replace the missing selenium-dependent enzyme activity.
- primary_references
- [rotruck1973] Selenium: biochemical role as a component of glutathione peroxidase. (1973). https://pubmed.ncbi.nlm.nih.gov/4686466/ DOI: 10.1126/science.179.4073.588
- tissue_or_cell_type
- Erythrocyte hemolyzates
- trigger_kind
- nutrient_deficiency Imported condition classification; unverified.
Riboflavin: mechanisms, deficiency and nutrient interactions (2026-09-17) · lines 1472–1484
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Erythrocyte hemolyzates from selenium-deficient rats; glutathione addition during peroxide/ascorbate challenge and 75Se enzyme purification. · source_derived_draft · unverified_draft
### b2-redox-gsh-needs-selenium-peroxidase Added glutathione failed to protect hemoglobin during oxidant challenge of selenium-deficient rat hemolyzates with very low glutathione-peroxidase activity. Condition category: nutrient_deficiency nutrient_topic: Riboflavin research collection; topical membership is not evidence of a direct dietary effect. plain_language: Supplying glutathione did not replace the missing selenium-dependent enzyme activity. organism: Rattus norvegicus tissue_or_cell_type: Erythrocyte hemolyzates experimental_model: Erythrocyte hemolyzates from selenium-deficient rats; glutathione addition during peroxide/ascorbate challenge and 75Se enzyme purification. limitations: Separate from FAD-dependent GSR recycling; neither riboflavin nor combined nutrient repletion was tested. exposure: Selenium-deficient diet, then ex-vivo oxidant and glutathione exposure cross_nutrient: Explains why B2-dependent GSH recycling and selenium-dependent GSH use are distinct requirements. evidence_location: Abstract [rotruck1973] Selenium: biochemical role as a component of glutathione peroxidase. (1973). https://pubmed.ncbi.nlm.nih.gov/4686466/ DOI: 10.1126/science.179.4073.588
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.