Component
Human hypophosphatasia ALPL impairment
Patient fibroblast inherited ALPL deficiency; exact variants not resolved in this study.
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
Hypophosphatasia fibroblasts retained only 2-5% of control phosphatase activity toward PLP and other tested substrates.
Experimental context and source evidence
- availability_state
- machinery_impairment Imported condition classification; unverified.
- evidence_location
- Indexed abstract: intact/disrupted cells, PI-PLC and patient enzyme activity
- experimental_model
- Normal and hypophosphatasia human skin fibroblasts.
- exposure
- Patient versus control fibroblast enzyme assays.
- limitations
- Not an intake-deficiency experiment.
- nutrient_topic
- Vitamin B6 research collection; topical membership is not evidence of a direct dietary effect. · Vitamin B6
- organism
- Homo sapiens
- plain_language
- A handling defect limits extracellular PLP processing.
- primary_references
- [fedde1990] Alkaline phosphatase (tissue-nonspecific isoenzyme) is a phosphoethanolamine and pyridoxal-5'-phosphate ectophosphatase: normal and hypophosphatasia fibroblast study. (1990). https://pubmed.ncbi.nlm.nih.gov/2220817/
- tissue_or_cell_type
- Skin fibroblasts
- trigger_kind
- machinery_impairment Imported condition classification; unverified.
Vitamin B6: mechanisms, deficiency and nutrient interactions (2026-09-17) · lines 322–333
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Normal and hypophosphatasia human skin fibroblasts. · source_derived_draft · unverified_draft
### b6-transport-alpl-impaired Hypophosphatasia fibroblasts retained only 2-5% of control phosphatase activity toward PLP and other tested substrates. Condition category: machinery_impairment nutrient_topic: Vitamin B6 research collection; topical membership is not evidence of a direct dietary effect. plain_language: A handling defect limits extracellular PLP processing. organism: Homo sapiens tissue_or_cell_type: Skin fibroblasts experimental_model: Normal and hypophosphatasia human skin fibroblasts. limitations: Not an intake-deficiency experiment. exposure: Patient versus control fibroblast enzyme assays. evidence_location: Indexed abstract: intact/disrupted cells, PI-PLC and patient enzyme activity [fedde1990] Alkaline phosphatase (tissue-nonspecific isoenzyme) is a phosphoethanolamine and pyridoxal-5'-phosphate ectophosphatase: normal and hypophosphatasia fibroblast study. (1990). https://pubmed.ncbi.nlm.nih.gov/2220817/
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.