# Thymosin Alpha-1: References & Source Literature

> Thymosin Alpha-1 references: the full cited source list — Goldstein 1977, the ETASS and null TESTS sepsis trials, the elderly-vaccine studies, COVID-19 cohorts, hepatitis B, HIV, and cancer reviews, with DOIs and PubMed links.

Every study cited across this field guide, indexed with its DOI and PubMed link.

## How to read this list

These are the peer-reviewed sources behind every cited claim on this site, numbered to match the bracketed markers in the text. The list spans four decades of Thymosin Alpha-1 research — from the 1977 isolation and sequencing through the 2025 phase-3 sepsis trial and the 2025 aging review. Each entry carries its authors, journal, year, DOI where available, and a PubMed link. Where a finding is contested or a trial was null, that is stated in the body text the citation supports, not softened here.

## References

[1] Goldstein AL, Low TL, McAdoo M, et al. Thymosin alpha1: isolation and sequence analysis of an immunologically active thymic polypeptide. Proc Natl Acad Sci U S A. 1977;74(2):725-729. https://pubmed.ncbi.nlm.nih.gov/265536/
[2] Wu J, Zhou L, Liu J, et al. The efficacy of thymosin alpha 1 for severe sepsis (ETASS): a multicenter, single-blind, randomized and controlled trial. Crit Care. 2013;17(1):R8. https://pubmed.ncbi.nlm.nih.gov/23327199/
[3] Wu J, Pei F, Zhou L, et al. The efficacy and safety of thymosin alpha1 for sepsis (TESTS): multicentre, double blinded, randomised, placebo controlled, phase 3 trial. BMJ. 2025;388:e082583. https://pubmed.ncbi.nlm.nih.gov/39814420/
[4] Dominari A, Hathaway III D, Pandav K, et al. Thymosin alpha 1: A comprehensive review of the literature. World J Virol. 2020;9(5):67-78. https://pubmed.ncbi.nlm.nih.gov/33362999/
[5] Romani L, Bistoni F, Montagnoli C, et al. Thymosin alpha1 activates dendritic cell tryptophan catabolism and establishes a regulatory environment for balance of inflammation and tolerance. Blood. 2006;108(7):2265-2274. https://pubmed.ncbi.nlm.nih.gov/16741252/
[6] Liu Y, Pan Y, Hu Z, et al. Thymosin Alpha 1 Reduces the Mortality of Severe Coronavirus Disease 2019 by Restoration of Lymphocytopenia and Reversion of Exhausted T Cells. Clin Infect Dis. 2020;71(16):2150-2157. https://pubmed.ncbi.nlm.nih.gov/32442287/
[7] Costantini C, Bellet MM, Pariano M, et al. A Reappraisal of Thymosin Alpha1 in Cancer Therapy. Front Oncol. 2019;9:873. https://pubmed.ncbi.nlm.nih.gov/31555601/
[8] Gravenstein S, Duthie EH, Miller BA, et al. Augmentation of influenza antibody response in elderly men by thymosin alpha one. A double-blind placebo-controlled clinical study. J Am Geriatr Soc. 1989;37(1):1-8. https://pubmed.ncbi.nlm.nih.gov/2642497/
[9] Ershler WB, Gravenstein S, Geloo ZS. Thymosin alpha 1 as an adjunct to influenza vaccination in the elderly: rationale and trial summaries. Ann N Y Acad Sci. 2007;1112:375-384. https://pubmed.ncbi.nlm.nih.gov/17600281/
[10] Ershler WB, Moore AL, Socinski MA. Influenza and aging: age-related changes and the effects of thymosin on the antibody response to influenza vaccine. J Clin Immunol. 1984;4(6):445-454. https://pubmed.ncbi.nlm.nih.gov/6334692/
[11] Panatto D, Amicizia D, Lai PL, Camerini R, De Rosa A, Gasparini R. Utility of thymosin alpha-1 as a co-adjuvant in influenza vaccines: a review. J Prev Med Hyg. 2011;52(3):111-115. https://pubmed.ncbi.nlm.nih.gov/22010537/
[12] Pica F, Chimenti MS, Gaziano R, et al. Serum thymosin α1 levels in patients with chronic inflammatory autoimmune diseases. Clin Exp Immunol. 2016;186(1):39-45. https://pubmed.ncbi.nlm.nih.gov/27350088/
[13] Naylor PH, Mutchnick MG. Immunotherapy for hepatitis B in the direct acting antiviral era: Reevaluating the thymosin α1 efficacy trials in the light of a combination therapy approach. J Viral Hepat. 2018;25(1):4-9. https://pubmed.ncbi.nlm.nih.gov/29052304/
[14] Wu M, Ji JJ, Zhong L, et al. Thymosin α1 therapy in critically ill patients with COVID-19: A multicenter retrospective cohort study. Int Immunopharmacol. 2020;88:106873. https://pubmed.ncbi.nlm.nih.gov/32795897/
[15] Matteucci C, Grelli S, Balestrieri E, et al. Thymosin alpha 1 and HIV-1: recent advances and future perspectives. Future Microbiol. 2017;12:141-155. https://pubmed.ncbi.nlm.nih.gov/28106477/
[16] Simonova MA, Ivanov I, Shoshina NS, Komyakova AM, et al. Aging and Thymosin Alpha-1. Int J Mol Sci. 2025;26(23):11470. https://pubmed.ncbi.nlm.nih.gov/41373628/

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A naturalist's dive-log through four decades of the Thymosin Alpha-1 literature — each observation lit one at a time and cited to source, the null results left in plain view, with no clinic in the dark behind it and nothing here dispensed or sold.