# Thymulin, zinc and the endocrine connection

> Indy Integrative Medicine: a thymulin reading list — The thymulin reading list at Indy Integrative Medicine: zinc-dependent activity, rat pituitary cells, human observations and animal gene-therapy experiments.

**Reading list**

A route through the experiments that put these subjects in the same conversation.

## The pituitary-cell preparation

Start at [the rat anterior pituitary-cell experiment](https://pubmed.ncbi.nlm.nih.gov/9483196/). Then the [thymus–neuroendocrine review](https://pubmed.ncbi.nlm.nih.gov/19236333/) provides a larger account of the reciprocal relationship. The scale changes between an individual experiment and a synthesis; I enjoy returning to the individual preparation after the wider account.

## Zinc, conformation and activity

The [metal-removal and restoration experiment](https://pubmed.ncbi.nlm.nih.gov/6957870/), the [zinc-interaction review](https://pubmed.ncbi.nlm.nih.gov/18476235/) and the [zinc-dependent antibody experiment](https://pubmed.ncbi.nlm.nih.gov/2413455/) make a satisfying sequence. They approach thymulin through activity, conformation and recognition. [Human zinc deficiency](https://pubmed.ncbi.nlm.nih.gov/3262625/), [human age comparisons](https://pubmed.ncbi.nlm.nih.gov/10971509/) and [aged mouse thymus in culture](https://pubmed.ncbi.nlm.nih.gov/8582786/) take that chemistry into different biological settings.

## Follow the replacement experiments

[Sustained circulating thymulin after thymus removal](https://pubmed.ncbi.nlm.nih.gov/16617301/) and the [neonatal endocrine-development study](https://pubmed.ncbi.nlm.nih.gov/21952687/) belong together as animal experiments involving an absent thymus. The [rheumatoid arthritis analogue trials](https://pubmed.ncbi.nlm.nih.gov/3310925/) are a separate human clinical question. The full citation details follow.

## References

[1] Thymulin stimulates corticotrophin release and cyclic nucleotide formation in the rat anterior pituitary gland https://pubmed.ncbi.nlm.nih.gov/9483196/
[2] The thymus-neuroendocrine axis: physiology, molecular biology, and therapeutic potential of the thymic peptide thymulin https://pubmed.ncbi.nlm.nih.gov/19236333/
[3] Contribution of zinc and other metals to the biological activity of the serum thymic factor https://pubmed.ncbi.nlm.nih.gov/6957870/
[4] Interactions between zinc and thymulin https://pubmed.ncbi.nlm.nih.gov/18476235/
[5] A zinc-dependent epitope on the molecule of thymulin, a thymic hormone https://pubmed.ncbi.nlm.nih.gov/2413455/
[6] Serum thymulin in human zinc deficiency https://pubmed.ncbi.nlm.nih.gov/3262625/
[7] Age-related thymus involution: zinc reverses in vitro the thymulin secretion defect https://pubmed.ncbi.nlm.nih.gov/8582786/
[8] Distribution of age-related thymulin titres in normal subjects through the course of life https://pubmed.ncbi.nlm.nih.gov/10971509/
[9] Gene therapy for long-term restoration of circulating thymulin in thymectomized mice and rats https://pubmed.ncbi.nlm.nih.gov/16617301/
[10] Thymulin-based gene therapy and pituitary function in animal models of aging https://pubmed.ncbi.nlm.nih.gov/21952687/
[11] Nonathymulin in rheumatoid arthritis: two double blind, placebo controlled trials https://pubmed.ncbi.nlm.nih.gov/3310925/

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I follow thymulin through published research here; Indy Integrative Medicine is a notebook with no medical business behind it, and its essays offer no medical advice.