Component

Neurological impairment associated with GAMT deficiency

Neurological impairment associated with GAMT deficiency. Species, exposure and limitations are retained in each linked claim.

2 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.

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.

Recorded relationships

What acts on it

  1. In the GAMT registry, clinical severity improved in 13 patients, 11 became seizure-free and movement disorder resolved in four during treatment combinations.

    Experimental context and source evidence
    availability_state
    machinery_impairment Imported condition classification; unverified.
    evidence_span
    {"source_cache": "artifacts/creatine-research/29506905.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "e443eeda80f65e6e7cd3b0b07a4a86b5f11b6b4feef6201ce97a99bc27af0b66", "start_char": 0, "end_char": 1609, "text_sha256": "e443eeda80f65e6e7cd3b0b07a4a86b5f11b6b4feef6201ce97a99bc27af0b66"}
    experimental_model
    International retrospective registry
    exposure
    All received creatine; 18 ornithine and 15 arginine/protein restriction
    limitations
    Nonrandomized combination treatment and variable diagnosis timing prevent attribution of improvements to a single component.
    nutrient_topic
    Creatine research collection; topical membership is not evidence of a direct dietary effect. · Creatine
    organism
    22 people with GAMT deficiency
    plain_language
    The registry supports the importance of treating this disorder, but cannot tell us which component caused each improvement.
    primary_references
    [creatine-p29506905] Treatment outcome of twenty-two patients with guanidinoacetate methyltransferase deficiency: An international retrospective cohort study. (2018). https://pubmed.ncbi.nlm.nih.gov/29506905/ DOI: 10.1016/j.ejpn.2018.02.007
    tissue_or_cell_type
    Clinical outcomes
    trigger_kind
    machinery_impairment Imported condition classification; unverified.

    Creatine: synthesis, transport, phosphocreatine energetics and nutrient interactions (2026-09-17) · lines 893–904

    AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · International retrospective registry · source_derived_draft · unverified_draft

    ### creatine-gamt-combination-outcomes In the GAMT registry, clinical severity improved in 13 patients, 11 became seizure-free and movement disorder resolved in four during treatment combinations. Condition category: machinery_impairment nutrient_topic: Creatine research collection; topical membership is not evidence of a direct dietary effect. plain_language: The registry supports the importance of treating this disorder, but cannot tell us which component caused each improvement. organism: 22 people with GAMT deficiency tissue_or_cell_type: Clinical outcomes experimental_model: International retrospective registry limitations: Nonrandomized combination treatment and variable diagnosis timing prevent attribution of improvements to a single component. exposure: All received creatine; 18 ornithine and 15 arginine/protein restriction evidence_span: {"source_cache": "artifacts/creatine-research/29506905.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "e443eeda80f65e6e7cd3b0b07a4a86b5f11b6b4feef6201ce97a99bc27af0b66", "start_char": 0, "end_char": 1609, "text_sha256": "e443eeda80f65e6e7cd3b0b07a4a86b5f11b6b4feef6201ce97a99bc27af0b66"} [creatine-p29506905] Treatment outcome of twenty-two patients with guanidinoacetate methyltransferase deficiency: An international retrospective cohort study. (2018). https://pubmed.ncbi.nlm.nih.gov/29506905/ DOI: 10.1016/j.ejpn.2018.02.007
    Complete structured claim and evidence
  2. The reported GAMT-deficiency syndrome was responsive to oral creatine substitution.

    Experimental context and source evidence
    availability_state
    machinery_impairment Imported condition classification; unverified.
    evidence_span
    {"source_cache": "artifacts/creatine-research/8651275.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "d6999ce02dd6012eefd5981a91374d6c933af0924d5e82b1447fd322e8f211de", "start_char": 0, "end_char": 706, "text_sha256": "d6999ce02dd6012eefd5981a91374d6c933af0924d5e82b1447fd322e8f211de"}
    experimental_model
    Biochemical diagnosis and treatment observations
    exposure
    GAMT deficiency with oral creatine substitution
    limitations
    Small case series; biochemical and neurological responses are not a universal prognosis.
    nutrient_topic
    Creatine research collection; topical membership is not evidence of a direct dietary effect. · Creatine
    organism
    Two human children
    plain_language
    Some manifestations improved with replacement in these cases; precursor accumulation remains a separate issue.
    primary_references
    [creatine-p8651275] Guanidinoacetate methyltransferase deficiency: the first inborn error of creatine metabolism in man. (1996). https://pubmed.ncbi.nlm.nih.gov/8651275/
    tissue_or_cell_type
    Brain spectroscopy, blood and liver enzyme assay
    trigger_kind
    machinery_impairment Imported condition classification; unverified.

    Creatine: synthesis, transport, phosphocreatine energetics and nutrient interactions (2026-09-17) · lines 880–891

    AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Biochemical diagnosis and treatment observations · source_derived_draft · unverified_draft

    ### creatine-gamt-replacement-response The reported GAMT-deficiency syndrome was responsive to oral creatine substitution. Condition category: machinery_impairment nutrient_topic: Creatine research collection; topical membership is not evidence of a direct dietary effect. plain_language: Some manifestations improved with replacement in these cases; precursor accumulation remains a separate issue. organism: Two human children tissue_or_cell_type: Brain spectroscopy, blood and liver enzyme assay experimental_model: Biochemical diagnosis and treatment observations limitations: Small case series; biochemical and neurological responses are not a universal prognosis. exposure: GAMT deficiency with oral creatine substitution evidence_span: {"source_cache": "artifacts/creatine-research/8651275.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "d6999ce02dd6012eefd5981a91374d6c933af0924d5e82b1447fd322e8f211de", "start_char": 0, "end_char": 706, "text_sha256": "d6999ce02dd6012eefd5981a91374d6c933af0924d5e82b1447fd322e8f211de"} [creatine-p8651275] Guanidinoacetate methyltransferase deficiency: the first inborn error of creatine metabolism in man. (1996). https://pubmed.ncbi.nlm.nih.gov/8651275/
    Complete structured claim and evidence

In the sources

Preserved passages that mention this component, quoted exactly. Open one to read it in context.

    This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.

    Evidence, AI assistance and curation standards