Immune-cell and phagocytosis readouts
Veterinary and experimental papers report thymalin increasing lymphocyte fractions, total leukocytes, and neutrophil phagocytic activity while lowering segmented neutrophils.
identity
fraction
calf-thymus polypeptide fraction
Parent thymic product. not a single ultrashort sequence. Later fragments (e.g. EW) were characterised from this line.
Key takeaways
- Thymalin is the older calf-thymus polypeptide fraction. Institutional starting point for the thymic bioregulator series. Mixture of sequences.
- Mapped themes include veterinary / experimental immune-cell shifts, an MPTP Parkinson-like behavioural model, erythrocyte osmotic-resistance work, and toxic-hepatitis co-treatment papers.
- The literature is almost entirely Russian Federation and CIS clinical or veterinary series; recent manufacturing disruption (Samson-Med) is part of the public trail this archive records.
What it is
Thymalin is the older extract form of the thymic bioregulator line: a Morozov-protocol calf-thymus polypeptide fraction. Mixture of sequences.
Khavinson-school writing later attributes effects to ultrashort peptides inside the fraction; thymogen (Glu-Trp) is one defined fragment sold separately.
We feature it because it is the institutional starting point for the thymic series. and because manufacturing disruption (Samson-Med, October 2025) is now part of the public trail.
What the literature describes
Themed chapters drawn only from papers already mapped on this dossier. Archive map. No medical advice.
MPTP Parkinson-like behavioural model
In an MPTP Parkinson-like rat model, thymalin is reported to accelerate conditioned active-avoidance learning and correct neurotoxin-linked behavioural deficits.
Erythrocyte osmotic resistance and antioxidant enzymes
Erythrocyte papers describe protective effects on osmotic resistance under stress and rises in catalase / glutathione peroxidase activity in animal blood work.
Toxic hepatitis co-treatment models
Toxic hepatitis models discuss hepatoprotective co-treatment findings (bile volume and related readouts) alongside thymalin.
Research trail
The literature is almost entirely Russian Federation and CIS clinical or veterinary series from the Morozov / Khavinson thymic line. That is where this archive’s thymic line lives.
Recent manufacturing stoppage (Samson-Med) further freezes parts of the contemporary trail and is recorded here as archive fact.
Open limits
- Which ultrashort peptides inside the fraction carry which reported effects?
- How does a peripherally given thymus fraction relate to MPTP recovery in CNS behavioural models mechanistically?
- What happens to the clinical literature after the 2025 manufacturing stop?
Russian full-text papers
- primenenie immunomodulyatora timusnogo proishozhdeniya dlya korrektsii immuniteta u zhi Russian full text
- vozmozhnost korrektsii peptidami timusa narusheniy obucheniya na modeli parkinsonopodob Russian full text
- sravnitelnoe vliyanie polipeptidov endometriya i timalina na nekotorye pokazateli immun Russian full text
- meta analiz immunomoduliruyuschey aktivnosti lekarstvennogo peptidnogo preparata timalina Russian full text
- vliyanie timalina na klinicheskoe techenie i pokazateli perekisnogo okisleniya lipidov Russian full text
- effektivnost preparatov timusa pri luchevoy patologii zhivotnyh Russian full text
- peptidnaya bioregulyatsiya rezistentnosti k ekstremalnym vozdeystviyam Russian full text
- sravnitelnoe deystvie timalina timogena i ronkoleykina na sostoyanie immuniteta i gemos Russian full text
- vliyanie kompleksa immunoaktivnyh peptidov tinrostima na aktivnost proteoliticheskih fe Russian full text
- profilaktika orvi u detey v ambulatorno poliklinicheskih usloviyah Russian full text
10 in corpus
Also on PubMed
- 2024 Expression features of T-lymphocytes, B-lymphocytes and macrophages in the post-traumatic regenerate of the mandible rats under conditions of filling a bone defect with hydroxyapatite-containing osteotropic material and thymalin injecting the surrounding soft tissues. doi:10.36740/Merkur202402105 PubMed
- 2024 Reparative osteogenesis in mandible in cases of filling a bone defect with hydroxyapatite-containing osteotropic material and injecting the surrounding soft tissues with thymalin: experimental and morphological study. doi:10.36740/WLek202401110 PubMed
- 1991 [New approaches to the treatment of mycobacterioses of the lungs]. PubMed
- 1989 [The use of thymalin in the combined chemotherapy of patients with infiltrative destructive pulmonary tuberculosis]. PubMed
- 2023 The Influence of KE and EW Dipeptides in the Composition of the Thymalin Drug on Gene Expression and Protein Synthesis Involved in the Pathogenesis of COVID-19. doi:10.3390/ijms241713377 PubMed
- 2022 [Morphological compound and indicators of the blood clotting system in severe COVID-19 patients of middle aged and elderly during treatment of Tocilizumab and Thymalin.]. PubMed
- 2021 Results and Prospects of Using Activator of Hematopoietic Stem Cell Differentiation in Complex Therapy for Patients with COVID-19. doi:10.1007/s12015-020-10087-6 PubMed
- 2020 [Age features of bioregulatory therapy of dental diseases.]. PubMed
- 2019 [TREATMENT OF SECRETORY OTITIS MEDIA IN CHILDREN, DEPENDING ON THE STAGE OF THE PROCESS AND ON THE BACKGROUND OF THE PATHOLOGICAL CONDITIONS]. PubMed
- 2018 Effect of Thymalin on the Tumor and Thymus under Conditions of Activation Therapy In Vivo. doi:10.1007/s10517-018-4104-z PubMed
10 curated
Still open
- Which ultrashort peptides inside the fraction carry which effects?
- How does a peripherally given thymus fraction modulate MPTP recovery in CNS behavioural models?
- Is lipid-peroxidation reduction an antioxidant mechanism or a downstream of fewer neutrophil-driven ROS?
- What happens to the clinical literature after the 2025 manufacturing stop?
Reviewed against the archive corpora on 2026-09-19. Source-grounded. No clinical claims. Archive / history / research only. No medical advice. No dosing, synthesis, sourcing, or health claims.