Component
Measured arginase activity
Measured arginase activity. Experimental scope belongs to 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 acts on it
The high-ferritin group had lower measured arginase activity in the controlled dietary comparison.
Experimental context and source evidence
- availability_state
- biomarker_context Imported condition classification; unverified.
- cross_nutrient
- Iron (associated_nutrient)
- evidence_span
- {"source_cache": "artifacts/manganese-clinical-sources/finley1999.abstract.txt", "locator": "Indexed primary abstract", "file_sha256": "3ec791f205459093fec1dfac522bbb6241aa1199894886be9c64d4c2eb2b97d7", "start_char": 0, "end_char": 1731, "text_sha256": "3ec791f205459093fec1dfac522bbb6241aa1199894886be9c64d4c2eb2b97d7", "text_characters": 1731}
- experimental_model
- Crossover isotope study in 26 healthy young women
- exposure
- Eleven women with serum ferritin >50 micrograms/L and 15 with <15 micrograms/L; diets at 0.7 or 9.5 mg Mn/day for 60 days each.
- limitations
- Ferritin defines the comparison groups, not cellular manganese deficiency. Retention and absorption are separate measurements; the study does not identify a specific transporter as their cause.
- nutrient_topic
- Manganese research collection; topical membership is not evidence of a direct dietary effect. · Manganese
- organism
- Homo sapiens
- plain_language
- An enzyme readout also varied with iron stores.
- primary_references
- [mn-clin-finley1999] Manganese absorption and retention by young women is associated with serum ferritin concentration. (1999). https://pubmed.ncbi.nlm.nih.gov/10393136/ DOI: 10.1093/ajcn/70.1.37
- tissue_or_cell_type
- Gut, whole-body tracer retention and blood
- trigger_kind
- biomarker_context Imported condition classification; unverified.
Manganese: enzyme cofactors, glycosylation, transport and nutrient interactions (2026-09-17) · lines 1006–1018
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Crossover isotope study in 26 healthy young women · source_derived_draft · unverified_draft
### mn-clin-iron-stores-arginase The high-ferritin group had lower measured arginase activity in the controlled dietary comparison. Condition category: biomarker_context nutrient_topic: Manganese research collection; topical membership is not evidence of a direct dietary effect. plain_language: An enzyme readout also varied with iron stores. organism: Homo sapiens tissue_or_cell_type: Gut, whole-body tracer retention and blood experimental_model: Crossover isotope study in 26 healthy young women limitations: Ferritin defines the comparison groups, not cellular manganese deficiency. Retention and absorption are separate measurements; the study does not identify a specific transporter as their cause. exposure: Eleven women with serum ferritin >50 micrograms/L and 15 with <15 micrograms/L; diets at 0.7 or 9.5 mg Mn/day for 60 days each. cross_nutrient: Iron (associated_nutrient) evidence_span: {"source_cache": "artifacts/manganese-clinical-sources/finley1999.abstract.txt", "locator": "Indexed primary abstract", "file_sha256": "3ec791f205459093fec1dfac522bbb6241aa1199894886be9c64d4c2eb2b97d7", "start_char": 0, "end_char": 1731, "text_sha256": "3ec791f205459093fec1dfac522bbb6241aa1199894886be9c64d4c2eb2b97d7", "text_characters": 1731} [mn-clin-finley1999] Manganese absorption and retention by young women is associated with serum ferritin concentration. (1999). https://pubmed.ncbi.nlm.nih.gov/10393136/ DOI: 10.1093/ajcn/70.1.37
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.