Component

Rat anterior-pituitary growth-hormone release

3 recorded relationships. Experimental role, claim status and evidence remain attached to each record.

Read recorded mechanisms Open recursive mind map

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. EGTA blocked thymulin-stimulated GH release in dispersed rat pituitary preparations; cAMP enhancers potentiated the response.

    EGTA → Rat anterior-pituitary growth-hormone release Recorded from sourceungraded
    Experimental context and source evidence
    evidence_access
    Primary bibliographic record and abstract checked; full methods/figures not comprehensively reviewed.
    experimental_condition
    Thymulin without EGTA hormone exposure · Thymulin Condition belongs to the full experimental contrast; do not separate a joint intervention.
    experimental_condition
    Thymulin without EGTA chelation · EGTA Condition belongs to the full experimental contrast; do not separate a joint intervention.
    experimental_contrast
    {"intervention": "EGTA plus thymulin", "comparator": "Thymulin without EGTA", "endpoint": "EGTA blocked thymulin-stimulated GH release in dispersed rat pituitary preparations; cAMP enhancers potentiated the response.", "effect_direction": "decrease", "combination": "joint", "conditions": [{"entity_slug": "egta", "state": "chelation"}, {"entity_slug": "thymulin", "state": "hormone exposure"}]} Explicit extracted experimental comparison; source-derived draft.
    experimental_model
    Rat pituitary preparations; extracellular calcium chelation supports calcium-sensitive signaling, not direct calcium binding to thymulin.
    interpretation_status
    Source-derived extraction of a fact-checked reference; access is explicit, not independent raw-data verification.
    limitations
    Interpret only within the recorded preparation, exposure and comparator. The complete source passage retains qualifications; unspecified doses/timing have not been extracted here. No clinical efficacy, nutrient deficiency or unique molecular mediation is inferred.
    plain_language
    EGTA blocked thymulin-stimulated GH release in dispersed rat pituitary preparations; cAMP enhancers potentiated the response.
    primary_references
    Growth hormone-releasing activity of thymulin on pituitary somatotropes is age dependent. | 1999 | DOI 10.1159/000054399 | PMID 9892847 | https://pubmed.ncbi.nlm.nih.gov/9892847/
    source_locator
    Reviewed reference lines 106-106; exact primary location described in quoted passage where extracted.

    Thymulin: detailed mechanisms of action (reviewed 3 October 2026) · lines 106–106

    Original AI-assisted review of primary studies and, where relevant, official regulatory records. Access level is retained per claim. Corrections, null results and unresolved questions remain explicit. Not publisher full text or independent replication. · supports · Rat pituitary preparations; extracellular calcium chelation supports calcium-sensitive signaling, not direct calcium binding to thymulin. · Recorded from source · Recorded from source

    In a different dispersed-rat-pituitary study using higher concentrations, thymulin stimulated **GH** release; responses depended on age and concentration. EGTA blocked activity, and cAMP enhancers potentiated it. These interventions support calcium-sensitive signaling, not a requirement for calcium bound directly to thymulin. The earlier GH null remains part of the evidence. [1999 GH study](https://pubmed.ncbi.nlm.nih.gov/9892847/)
    Complete structured claim and evidence

  2. GH did not increase in the picomolar zinc-thymulin isolated rat anterior-pituitary experiment.

    Thymulin → Rat anterior-pituitary growth-hormone release Recorded from sourceungraded
    Experimental context and source evidence
    evidence_access
    Primary bibliographic record and abstract checked; full methods/figures not comprehensively reviewed.
    experimental_contrast
    {"intervention": "Picomolar zinc-thymulin", "comparator": "Matched tissue control", "endpoint": "GH did not increase in the picomolar zinc-thymulin isolated rat anterior-pituitary experiment.", "effect_direction": "no_detected_change", "combination": "single", "conditions": []} Explicit extracted experimental comparison; source-derived draft.
    experimental_model
    Isolated rat anterior-pituitary tissue; picomolar zinc-thymulin; concentration-dependent cAMP/cGMP responses. Not human cortisol measurement.
    interpretation_status
    Source-derived extraction of a fact-checked reference; access is explicit, not independent raw-data verification.
    limitations
    Interpret only within the recorded preparation, exposure and comparator. The complete source passage retains qualifications; unspecified doses/timing have not been extracted here. No clinical efficacy, nutrient deficiency or unique molecular mediation is inferred.
    plain_language
    GH did not increase in the picomolar zinc-thymulin isolated rat anterior-pituitary experiment.
    primary_references
    Thymulin stimulates corticotrophin release and cyclic nucleotide formation in the rat anterior pituitary gland. | 1997 | DOI 10.1159/000097322 | PMID 9483196 | https://pubmed.ncbi.nlm.nih.gov/9483196/
    source_locator
    Reviewed reference lines 104-104; exact primary location described in quoted passage where extracted.

    Thymulin: detailed mechanisms of action (reviewed 3 October 2026) · lines 104–104

    Original AI-assisted review of primary studies and, where relevant, official regulatory records. Access level is retained per claim. Corrections, null results and unresolved questions remain explicit. Not publisher full text or independent replication. · supports · Isolated rat anterior-pituitary tissue; picomolar zinc-thymulin; concentration-dependent cAMP/cGMP responses. Not human cortisol measurement. · Recorded from source · Recorded from source

    In isolated rat anterior pituitary tissue, picomolar zinc–thymulin stimulated ACTH, accompanied by cAMP changes and cGMP changes at higher tested concentrations. A cAMP-directed phosphodiesterase inhibitor enhanced some responses, whereas the cGMP-directed inhibitor attenuated responses at higher concentrations. LH increased at selected concentrations, **GH did not**, and prolactin decreased. This does not establish human cortisol elevation or blood–brain barrier passage. [1997 study](https://pubmed.ncbi.nlm.nih.gov/9483196/)
    Complete structured claim and evidence

  3. Higher-concentration thymulin stimulated GH release in dispersed rat pituitary preparations; responses depended on age and concentration.

    Thymulin → Rat anterior-pituitary growth-hormone release Recorded from sourceungraded
    Experimental context and source evidence
    evidence_access
    Primary bibliographic record and abstract checked; full methods/figures not comprehensively reviewed.
    experimental_contrast
    {"intervention": "Thymulin", "comparator": "Matched cell preparation", "endpoint": "Higher-concentration thymulin stimulated GH release in dispersed rat pituitary preparations; responses depended on age and concentration.", "effect_direction": "increase", "combination": "single", "conditions": []} Explicit extracted experimental comparison; source-derived draft.
    experimental_model
    Dispersed rat pituitary cells; higher concentration than earlier tissue study; no universal GH sign.
    interpretation_status
    Source-derived extraction of a fact-checked reference; access is explicit, not independent raw-data verification.
    limitations
    Interpret only within the recorded preparation, exposure and comparator. The complete source passage retains qualifications; unspecified doses/timing have not been extracted here. No clinical efficacy, nutrient deficiency or unique molecular mediation is inferred.
    plain_language
    Higher-concentration thymulin stimulated GH release in dispersed rat pituitary preparations; responses depended on age and concentration.
    primary_references
    Growth hormone-releasing activity of thymulin on pituitary somatotropes is age dependent. | 1999 | DOI 10.1159/000054399 | PMID 9892847 | https://pubmed.ncbi.nlm.nih.gov/9892847/
    source_locator
    Reviewed reference lines 106-106; exact primary location described in quoted passage where extracted.

    Thymulin: detailed mechanisms of action (reviewed 3 October 2026) · lines 106–106

    Original AI-assisted review of primary studies and, where relevant, official regulatory records. Access level is retained per claim. Corrections, null results and unresolved questions remain explicit. Not publisher full text or independent replication. · supports · Dispersed rat pituitary cells; higher concentration than earlier tissue study; no universal GH sign. · Recorded from source · Recorded from source

    In a different dispersed-rat-pituitary study using higher concentrations, thymulin stimulated **GH** release; responses depended on age and concentration. EGTA blocked activity, and cAMP enhancers potentiated it. These interventions support calcium-sensitive signaling, not a requirement for calcium bound directly to thymulin. The earlier GH null remains part of the evidence. [1999 GH study](https://pubmed.ncbi.nlm.nih.gov/9892847/)
    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.