Component
Urinary ammonium excretion
Urinary NH4+ endpoint as specified by the original assay.
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 acts on it
Potassium-deficient feeding increased urinary ammonium excretion before detectable hypokalemia in the studied rats.
Experimental context and source evidence
- availability_state
- nutrient_deficiency Imported condition classification; unverified.
- cross_nutrient
- Potassium deprivation changes glutamine nitrogen metabolism and sodium-coupled glutamine transport; these experiments did not manipulate dietary protein adequacy.
- endpoint
- Potassium-deficient feeding increased urinary ammonium excretion before detectable hypokalemia in the studied rats.
- experimental-exposure
- Rats on control or potassium-deficient diets for up to 6 days; NH4Cl co-loading and NRK52E/LLC-PK1 cell experiments.
- experimental_model
- Rats on control or potassium-deficient diets for up to 6 days; NH4Cl co-loading and NRK52E/LLC-PK1 cell experiments.
- limitations
- Dietary deprivation precedes detectable hypokalemia here; protein expression does not independently establish transport flux or quantify net bicarbonate generation.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Rattus norvegicus
- plain_language
- The kidney changed nitrogen and acid excretion before blood potassium fell.
- primary_references
- [hossain-2011-k-ammoniagenesis] Cellular and molecular basis of increased ammoniagenesis in potassium deprivation (2011). https://journals.physiology.org/doi/full/10.1152/ajprenal.00010.2011 DOI: 10.1152/ajprenal.00010.2011
- tissue_or_cell_type
- renal proximal tubule and whole-kidney excretion
- trigger_kind
- nutrient_deficiency Imported condition classification; unverified.
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 958–970
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Rats on control or potassium-deficient diets for up to 6 days; NH4Cl co-loading and NRK52E/LLC-PK1 cell experiments. · source_derived_draft · unverified_draft
### k-deprivation-early-ammonium Potassium-deficient feeding increased urinary ammonium excretion before detectable hypokalemia in the studied rats. Condition category: nutrient_deficiency nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: The kidney changed nitrogen and acid excretion before blood potassium fell. organism: Rattus norvegicus tissue_or_cell_type: renal proximal tubule and whole-kidney excretion experimental_model: Rats on control or potassium-deficient diets for up to 6 days; NH4Cl co-loading and NRK52E/LLC-PK1 cell experiments. limitations: Dietary deprivation precedes detectable hypokalemia here; protein expression does not independently establish transport flux or quantify net bicarbonate generation. cross_nutrient: Potassium deprivation changes glutamine nitrogen metabolism and sodium-coupled glutamine transport; these experiments did not manipulate dietary protein adequacy. experimental-exposure: Rats on control or potassium-deficient diets for up to 6 days; NH4Cl co-loading and NRK52E/LLC-PK1 cell experiments. endpoint: Potassium-deficient feeding increased urinary ammonium excretion before detectable hypokalemia in the studied rats. [hossain-2011-k-ammoniagenesis] Cellular and molecular basis of increased ammoniagenesis in potassium deprivation (2011). https://journals.physiology.org/doi/full/10.1152/ajprenal.00010.2011 DOI: 10.1152/ajprenal.00010.2011
Complete structured claim and evidence
Where it participates (unsigned role)
The same KCl run-in modestly lowered mean bicarbonate from 24.5 to 23.7 mmol/L and increased chloride; urinary ammonium did not increase.
Experimental context and source evidence
- cross_nutrient
- Potassium salt/chloride -> acid-base balance.
- experimental_model
- Same two-week CKD cohort.
- limitations
- No randomized comparator; no significant blood-pressure or eGFR change.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Homo sapiens
- plain_language
- The chloride salt affected acid-base measurements as well as potassium.
- primary_references
- [k-gritter2022] Effects of Short-Term Potassium Chloride Supplementation in Patients with CKD (2022). https://pubmed.ncbi.nlm.nih.gov/35609996/ DOI: 10.1681/asn.2022020147
- tissue_or_cell_type
- Plasma and urine
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 1650–1660
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Same two-week CKD cohort. · source_derived_draft · unverified_draft
### k-ckd-kcl-bicarbonate-response The same KCl run-in modestly lowered mean bicarbonate from 24.5 to 23.7 mmol/L and increased chloride; urinary ammonium did not increase. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: The chloride salt affected acid-base measurements as well as potassium. organism: Homo sapiens tissue_or_cell_type: Plasma and urine experimental_model: Same two-week CKD cohort. limitations: No randomized comparator; no significant blood-pressure or eGFR change. cross_nutrient: Potassium salt/chloride -> acid-base balance. [k-gritter2022] Effects of Short-Term Potassium Chloride Supplementation in Patients with CKD (2022). https://pubmed.ncbi.nlm.nih.gov/35609996/ DOI: 10.1681/asn.2022020147
Complete structured claim and evidenceBicarbonate salts and potassium gluconate increased bicarbonate in the CKD crossover; urinary citrate rose and ammonium fell.
Experimental context and source evidence
- cross_nutrient
- Salt anion -> bicarbonate/citrate/ammonium.
- experimental_model
- 31 participants; five-day randomized periods.
- limitations
- Short exposure and washout; unchanged diet advised rather than controlled.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Homo sapiens
- plain_language
- The accompanying anion changed the acid-base response.
- primary_references
- [k-ckd-salts2026] Randomized Cross-Over Trial of Electrolyte, Acid-Base and Blood Pressure Effects of Salt Supplements in CKD (2026). https://pubmed.ncbi.nlm.nih.gov/42381762/ DOI: 10.1016/j.ekir.2026.106619
- tissue_or_cell_type
- Plasma and urine
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 1662–1672
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · 31 participants; five-day randomized periods. · source_derived_draft · unverified_draft
### k-ckd-salts-alkalizing-comparison Bicarbonate salts and potassium gluconate increased bicarbonate in the CKD crossover; urinary citrate rose and ammonium fell. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: The accompanying anion changed the acid-base response. organism: Homo sapiens tissue_or_cell_type: Plasma and urine experimental_model: 31 participants; five-day randomized periods. limitations: Short exposure and washout; unchanged diet advised rather than controlled. cross_nutrient: Salt anion -> bicarbonate/citrate/ammonium. [k-ckd-salts2026] Randomized Cross-Over Trial of Electrolyte, Acid-Base and Blood Pressure Effects of Salt Supplements in CKD (2026). https://pubmed.ncbi.nlm.nih.gov/42381762/ DOI: 10.1016/j.ekir.2026.106619
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.