Component
Amiloride
ENaC inhibitor used experimentally to probe renal sodium transport.
3 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
Amiloride increased maximal urine osmolality and AQP2 excretion in an eleven-patient crossover trial during lithium therapy.
Experimental context and source evidence
- evidence_access
- Primary abstract
- experimental_model
- Randomized placebo-controlled crossover; six-week periods.
- limitations
- Small trial; reduced lithium entry was inferred, not directly measured in patient kidney cells.
- nutrient_topic
- Lithium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Lithium
- plain_language
- Blocking a sodium channel improved the measured water response.
- primary_references
- Lithium-induced nephrogenic diabetes insipidus: renal effects of amiloride. · 2008 · https://pubmed.ncbi.nlm.nih.gov/18596116/ · DOI 10.2215/CJN.01640408
Lithium: metal-sensitive enzymes, transport and cross-nutrient mechanisms (2026-09-19) · lines 344–350
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Randomized placebo-controlled crossover; six-week periods. · source_derived_draft · unverified_draft
## lithium-amiloride-human Blocking a sodium channel improved the measured water response. Amiloride increased maximal urine osmolality and AQP2 excretion in an eleven-patient crossover trial during lithium therapy. Model: Randomized placebo-controlled crossover; six-week periods. Limitations: Small trial; reduced lithium entry was inferred, not directly measured in patient kidney cells. Evidence access: Primary abstract Lithium-induced nephrogenic diabetes insipidus: renal effects of amiloride. · 2008 · https://pubmed.ncbi.nlm.nih.gov/18596116/ · DOI 10.2215/CJN.01640408
Complete structured claim and evidence
Where it participates (unsigned role)
Mg restriction reduced cleaved alpha/gamma ENaC abundance and blunted amiloride-induced sodium excretion in mice.
Experimental context and source evidence
- availability_state
- nutrient_deficiency Imported condition classification; unverified.
- cross_nutrient
- magnesium -> sodium -> potassium
- experimental_model
- Dietary restriction in C57BL/6J mice with renal transport assays
- limitations
- Cleaved subunits and amiloride response support ENaC inhibition; the molecular cause was unresolved.
- nutrient_topic
- Magnesium research collection; topical membership is not evidence of a direct dietary effect. · Magnesium
- organism
- Mus musculus
- plain_language
- With less dietary Mg, these kidneys reduced the sodium entry pathway that normally helps drive potassium secretion.
- primary_references
- [maeoka-2025-enac-romk] Hypomagnesaemia-associated hypokalaemia requires activation of both ENaC and ROMK (2025). https://pubmed.ncbi.nlm.nih.gov/41137719/ DOI: 10.1113/JP287704
- tissue_or_cell_type
- Kidney distal nephron
- trigger_kind
- nutrient_deficiency Imported condition classification; unverified.
Magnesium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 154–164
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Dietary restriction in C57BL/6J mice with renal transport assays · source_derived_draft · unverified_draft
### mg-restriction-reduces-enac-activity Mg restriction reduced cleaved alpha/gamma ENaC abundance and blunted amiloride-induced sodium excretion in mice. Condition category: nutrient_deficiency nutrient_topic: Magnesium research collection; topical membership is not evidence of a direct dietary effect. plain_language: With less dietary Mg, these kidneys reduced the sodium entry pathway that normally helps drive potassium secretion. organism: Mus musculus tissue_or_cell_type: Kidney distal nephron experimental_model: Dietary restriction in C57BL/6J mice with renal transport assays limitations: Cleaved subunits and amiloride response support ENaC inhibition; the molecular cause was unresolved. cross_nutrient: magnesium -> sodium -> potassium [maeoka-2025-enac-romk] Hypomagnesaemia-associated hypokalaemia requires activation of both ENaC and ROMK (2025). https://pubmed.ncbi.nlm.nih.gov/41137719/ DOI: 10.1113/JP287704
Complete structured claim and evidenceK-depleted rats preferentially retained K over Rb, especially when distal buffer delivery increased and residual secretion was inhibited.
Experimental context and source evidence
- availability_state
- nutrient_deficiency Imported condition classification; unverified.
- evidence_location
- Primary abstract; K/Rb comparisons with buffer and secretion manipulation.
- experimental_model
- Clearance studies with amiloride and buffer-delivery manipulation
- limitations
- Clearance evidence does not identify the H,K-ATPase isoform or directly localize all transport.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Rattus norvegicus
- plain_language
- The depleted kidney can increase potassium recovery; rubidium does not track it perfectly.
- primary_references
- [1992-k-reabsorption] Effect of K depletion on renal K and Rb excretion: evidence for activation of K reabsorption (1992). https://pubmed.ncbi.nlm.nih.gov/1405312/ DOI: 10.1038/ki.1992.286
- tissue_or_cell_type
- Kidney; distal absorptive pathway inferred
- trigger_kind
- nutrient_deficiency Imported condition classification; unverified.
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 523–533
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Clearance studies with amiloride and buffer-delivery manipulation · source_derived_draft · unverified_draft
### renal-k-depletion-activates-reabsorption K-depleted rats preferentially retained K over Rb, especially when distal buffer delivery increased and residual secretion was inhibited. Condition category: nutrient_deficiency nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: The depleted kidney can increase potassium recovery; rubidium does not track it perfectly. organism: Rattus norvegicus tissue_or_cell_type: Kidney; distal absorptive pathway inferred experimental_model: Clearance studies with amiloride and buffer-delivery manipulation limitations: Clearance evidence does not identify the H,K-ATPase isoform or directly localize all transport. evidence_location: Primary abstract; K/Rb comparisons with buffer and secretion manipulation. [1992-k-reabsorption] Effect of K depletion on renal K and Rb excretion: evidence for activation of K reabsorption (1992). https://pubmed.ncbi.nlm.nih.gov/1405312/ DOI: 10.1038/ki.1992.286
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.