Component

Mouse thymulin bioassay activity

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. Bromocriptine lowered thymulin activity in mice and concurrent prolactin restored it.

    Bromocriptine → Mouse thymulin bioassay activity 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": "Bromocriptine", "comparator": "Control or concurrent prolactin rescue", "endpoint": "Bromocriptine lowered thymulin activity in mice and concurrent prolactin restored it.", "effect_direction": "decrease", "combination": "single", "conditions": []} Explicit extracted experimental comparison; source-derived draft.
    experimental_model
    Mouse endocrine manipulation; not an established human drug-induced deficiency.
    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
    Bromocriptine lowered thymulin activity in mice and concurrent prolactin restored it.
    primary_references
    Neuroendocrine control of thymic hormonal production. I. Prolactin stimulates in vivo and in vitro the production of thymulin by human and murine thymic epithelial cells. | 1989 | DOI 10.1210/endo-125-1-3 | PMID 2737149 | https://pubmed.ncbi.nlm.nih.gov/2737149/
    source_locator
    Reviewed reference lines 92-92; exact primary location described in quoted passage where extracted.

    Thymulin: detailed mechanisms of action (reviewed 3 October 2026) · lines 92–92

    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 · Mouse endocrine manipulation; not an established human drug-induced deficiency. · Recorded from source · Recorded from source

    | Prolactin | Increased thymulin secretion in human/mouse TEC cultures. In mice, prolactin increased activity; bromocriptine lowered it, and concurrent prolactin restored it. This is an experimental hormone/drug interaction, not proof that every bromocriptine-treated person develops thymulin deficiency. [1989 study](https://pubmed.ncbi.nlm.nih.gov/2737149/) |
    Complete structured claim and evidence

  2. Melatonin accompanied changes in zinc balance, thymulin and IL-2 in stressed tumor-bearing mice; co-movement did not establish thymulin mediation of tumor outcomes.

    Melatonin → Mouse thymulin bioassay activity 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": "Melatonin during stress", "comparator": "Study control", "endpoint": "Melatonin accompanied changes in zinc balance, thymulin and IL-2 in stressed tumor-bearing mice; co-movement did not establish thymulin mediation of tumor outcomes.", "effect_direction": "mixed", "combination": "single", "conditions": []} Explicit extracted experimental comparison; source-derived draft.
    experimental_model
    Stressed tumor-bearing mouse model.
    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
    Melatonin accompanied changes in zinc balance, thymulin and IL-2 in stressed tumor-bearing mice; co-movement did not establish thymulin mediation of tumor outcomes.
    primary_references
    Melatonin administration in tumor-bearing mice (intact and pinealectomized) in relation to stress, zinc, thymulin and IL-2. | 1999 | DOI 10.1016/s0192-0561(98)00067-8 | PMID 10411280 | https://pubmed.ncbi.nlm.nih.gov/10411280/
    source_locator
    Reviewed reference lines 96-96; exact primary location described in quoted passage where extracted.

    Thymulin: detailed mechanisms of action (reviewed 3 October 2026) · lines 96–96

    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 · Stressed tumor-bearing mouse model. · Recorded from source · Recorded from source

    | Melatonin and stress | In a stressed, tumor-bearing mouse model, melatonin treatment accompanied changes in zinc balance, thymulin and IL-2. Co-movement does not prove a direct melatonin → thymulin receptor pathway or that thymulin mediated the tumor outcome. [1999 study](https://pubmed.ncbi.nlm.nih.gov/10411280/) |
    Complete structured claim and evidence

  3. Stressed metallothionein-overexpressing mice had reduced active thymulin despite normal-range plasma zinc and preserved zinc-recoverable thymulin activity.

    Experimental mouse metallothionein overexpression → Mouse thymulin bioassay activity Recorded from sourceungraded
    Experimental context and source evidence
    evidence_access
    Full text obtained; relevant results/methods inspected. This does not assert exhaustive figure/data reanalysis.
    experimental_condition
    Study control mice overexpression · Experimental mouse metallothionein overexpression Condition belongs to the full experimental contrast; do not separate a joint intervention.
    experimental_contrast
    {"intervention": "Metallothionein overexpression under stress", "comparator": "Study control mice", "endpoint": "Stressed metallothionein-overexpressing mice had reduced active thymulin despite normal-range plasma zinc and preserved zinc-recoverable thymulin activity.", "effect_direction": "decrease", "combination": "joint", "conditions": [{"entity_slug": "mouse-metallothionein-overexpression", "state": "overexpression"}, {"entity_slug": null, "state": "experimental stress"}]} Explicit extracted experimental comparison; source-derived draft.
    experimental_model
    Stressed metallothionein-overexpressing mice; liver zinc storage, plasma zinc and thymic changes were distinct measurements.
    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
    Stressed metallothionein-overexpressing mice had reduced active thymulin despite normal-range plasma zinc and preserved zinc-recoverable thymulin activity.
    primary_references
    Metallothioneins (I+II) and thyroid–thymus axis efficiency in old mice: role of corticosterone and zinc supply | 2002 | DOI 10.1016/S0047-6374(01)00414-6 | PMID 11850030 | https://pmc.ncbi.nlm.nih.gov/articles/PMC7127331/
    source_locator
    Reviewed reference lines 48-48; exact primary location described in quoted passage where extracted.

    Thymulin: detailed mechanisms of action (reviewed 3 October 2026) · lines 48–48

    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 · Stressed metallothionein-overexpressing mice; liver zinc storage, plasma zinc and thymic changes were distinct measurements. · Recorded from source · Recorded from source

    Metallothionein is not simply beneficial or harmful. A 2002 mouse study found that stressed metallothionein-overexpressing animals had reduced active thymulin and NK-cell activity despite normal-range plasma zinc and preserved zinc-recoverable thymulin activity. Higher corticosterone, liver zinc–metallothionein and reduced thymic cortex accompanied the phenotype. This supports investigating **zinc distribution and stress**, but does not prove that metallothionein directly starved the peptide in TECs or mediated every immune change. Liver storage, TEC delivery and serum bioactivity are different compartments and measurements. [Mouse stress and zinc-distribution study](https://pmc.ncbi.nlm.nih.gov/articles/PMC7127331/)
    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.