Component
Conjugation of an arylamine with a fatty acid by fatty acid amide hydrolase
Conjugation of an arylamine with a fatty acid by fatty acid amide hydrolase. Species, exposure and limitations are retained in 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.
Where it participates (unsigned role)
Acetaminophen, following deacetylation to its primary amine, is conjugated with arachidonic acid in the brain and the spinal cord to form the potent TRPV1 agonist N-arachidonoylphenolamine, and this conjugation is absent in mice lacking the enzyme fatty acid amide hydrolase; AM404 also inhibits purified cyclooxygenase-1 and -2 and prostaglandin synthesis in lipopolysaccharide-stimulated macrophages and acts on the endogenous cannabinoid system, identifying fatty acid conjugation as a novel pathway for drug metabolism.
Experimental context and source evidence
- availability_state
- machinery_impairment Imported condition classification; unverified.
- evidence_span
- {"source_cache": "artifacts/paracetamol-research/15987694.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "8da7599ee6674ced34346ae03fae0e421bcc5c1f53b0cb879145d7a511502001", "start_char": 0, "end_char": 1093, "text_sha256": "8da7599ee6674ced34346ae03fae0e421bcc5c1f53b0cb879145d7a511502001"}
- experimental_model
- Brain and spinal cord metabolite identification in wild-type and fatty acid amide hydrolase knockout mice
- exposure
- Acetaminophen, with the conjugation step tested by genetic deletion of the conjugating enzyme
- limitations
- Identifies a previously unknown route of drug metabolism and proves the enzyme by knockout. The downstream activities are measured on purified enzyme and cell lines rather than in the treated animal.
- nutrient_topic
- Paracetamol research collection; topical membership is not evidence of a direct clinical effect, and the drug is recorded separately from the metabolites NAPQI and AM404. · Paracetamol
- organism
- Mouse
- plain_language
- The brain takes the drug apart and builds the pieces into something new, and that something is what acts.
- primary_references
- [apap-p15987694] Conversion of acetaminophen to the bioactive N-acylphenolamine AM404 via fatty acid amide hydrolase-dependent arachidonic acid conjugation in the nervous system. (2005). https://pubmed.ncbi.nlm.nih.gov/15987694/ DOI: 10.1074/jbc.m501489200
- tissue_or_cell_type
- Brain and spinal cord
- trigger_kind
- machinery_impairment Imported condition classification; unverified.
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Brain and spinal cord metabolite identification in wild-type and fatty acid amide hydrolase knockout mice · source_derived_draft · unverified_draft
### apap-faah-builds-am404 Acetaminophen, following deacetylation to its primary amine, is conjugated with arachidonic acid in the brain and the spinal cord to form the potent TRPV1 agonist N-arachidonoylphenolamine, and this conjugation is absent in mice lacking the enzyme fatty acid amide hydrolase; AM404 also inhibits purified cyclooxygenase-1 and -2 and prostaglandin synthesis in lipopolysaccharide-stimulated macrophages and acts on the endogenous cannabinoid system, identifying fatty acid conjugation as a novel pathway for drug metabolism. Condition category: machinery_impairment nutrient_topic: Paracetamol research collection; topical membership is not evidence of a direct clinical effect, and the drug is recorded separately from the metabolites NAPQI and AM404. plain_language: The brain takes the drug apart and builds the pieces into something new, and that something is what acts. organism: Mouse tissue_or_cell_type: Brain and spinal cord experimental_model: Brain and spinal cord metabolite identification in wild-type and fatty acid amide hydrolase knockout mice limitations: Identifies a previously unknown route of drug metabolism and proves the enzyme by knockout. The downstream activities are measured on purified enzyme and cell lines rather than in the treated animal. exposure: Acetaminophen, with the conjugation step tested by genetic deletion of the conjugating enzyme evidence_span: {"source_cache": "artifacts/paracetamol-research/15987694.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "8da7599ee6674ced34346ae03fae0e421bcc5c1f53b0cb879145d7a511502001", "start_char": 0, "end_char": 1093, "text_sha256": "8da7599ee6674ced34346ae03fae0e421bcc5c1f53b0cb879145d7a511502001"} [apap-p15987694] Conversion of acetaminophen to the bioactive N-acylphenolamine AM404 via fatty acid amide hydrolase-dependent arachidonic acid conjugation in the nervous system. (2005). https://pubmed.ncbi.nlm.nih.gov/15987694/ DOI: 10.1074/jbc.m501489200
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.