In mice, the peptide thymalin doesn’t change blood stem cells in a dish, but when given to live animals it shifts how these cells develop, especially reducing red‑blood‑cell‑focused growth and lowering the number of circulating stem cells. It also helps bone‑marrow stem cells recover after the thymus is removed, making them act more like normal cells. The effects seem to rely on factors in the bone‑marrow environment that aren’t present in the blood.
Khavinson. V Kh VK; Linkova. N S NS; Kvetnoy. I M IM; Polyakova. V O VO; Drobintseva. A O AO; Kvetna...
The study shows that the peptide thymalin can push early‑stage blood stem cells to become mature T‑cells that are important for fighting viruses like COVID‑19. It cuts down markers of immature cells and boosts a marker (CD28) linked to strong immune responses.
Kuznik. B I BI; Pisarevskaia. L I LI; Morozov. V G VG; Khavinson. V Kh VKh; Tsybikov. N N NN
In rats without a thymus, blood clotting gets too fast and the system that breaks clots slows down, especially after histamine exposure, which can be deadly. Giving them the peptide thymalin fixes this imbalance, keeping clotting and clot‑breakdown normal and helping the animals survive.
Belokrylov. G A GA; Derevnina. O Y OY; Molchanova. I V IV; Sorochinskaya. E I EI
The study shows that the peptide mix thymalin (along with other amino acids and short peptides) can boost certain immune reactions and help white blood cells eat bacteria in mice and chickens, but it only works when injected under the skin, not when taken by mouth. The effects depend heavily on the dose, and the same mixtures also protect cells from some toxins in lab tests, though this protection doesn’t line up with the immune benefits.
In people with duodenal ulcers, the study found that their immune T‑cell numbers were lower than in healthy folks. Adding the peptide thymalin (together with dalargin) to their treatment helped bring those T‑cell counts back up to normal levels. The effect was specific to certain T‑cell subtypes, while others stayed unchanged.
Kuznik. B I BI; Budazhabon. G B GB; Budazhabon. N G NG; Morozov. V G VG; Pinelis. I S IS
A small study with 30 people who had gum disease found that taking thymalin seemed to boost overall health, improve certain immune cell functions, and help blood clotting and breakdown processes return to normal.
Saakov. B A BA; Belovolova. R A RA; Bakhutashvili. V I VI
In a rat study, giving the peptide thymalin together with plaferon after a severe injury doubled the animals' chances of surviving the first week. The combo also boosted several immune markers, like total T‑cells and lysozyme activity, suggesting it helped the immune system recover from trauma.
Ryzhenkov. V E VE; Ogurtsov. R P RP; Trubacheva. V V VV; Popov. V G VG; Puzyreva. V P VP
In a rabbit study, the thymus‑derived peptide thymalin lowered blood fats and reduced early signs of artery plaque when the animals ate a high‑cholesterol diet for three months. It also helped restore normal immune cell function that is usually disturbed by high cholesterol.
Gol'zand. I V IV; Murav'eva. N N NN; Goriacheva. L G LG
In a study of 102 kids with chronic hepatitis B, giving the peptide thymalin helped their immune system recover: more T‑cells, a better balance between helper and suppressor T‑cells, and fewer cells reacting to the virus. About 72% of the children showed clinical improvement after treatment.
Melekhin. V D VD; Pleskovskaia. G N GN; Leshchenko. G Ia GIa; Siniachenko. V V VV; Nasonova. V A VA
In a mouse model of rheumatoid arthritis, a single injection of the thymic peptide thymalin (0.2 mg per mouse) slowed the initial learning of a new habit but helped the mice keep that memory better, especially in the arthritis‑prone strain. The authors think this reflects thymalin’s role in immune‑brain communication.
Dekster. L I LI; Nikolaeva. L Ia LIa; Bokhman. Ia V IaV; Letskiĭ. V B VB; Morozov. V G VG
A small clinical trial gave the peptide thymalin to 50 women with cervical cancer and found it helped boost their immune system. The researchers think adding thymalin to cancer treatment plans could be useful because it seemed to improve immune function in these patients.
Shcherbakova. N M NM; Aleksandrova. A E AE; Morozov. V G VG; Podosinnikov. I S IS; Khavinson. V Kh V...
In rats that had their thymus removed (which weakens the immune system), giving them the peptide thymalin helped their immune cells work better and reduced the severity of a TB infection, especially when the infection happened long after the thymus removal.
Scientists discovered a small protein called AgT-2 in the thymus and some other organs of several animals, but not in humans. This protein is a regular part of commercial thymus‑derived supplements like thymalin, and its amount can be measured to check product quality.
Khmel'nitskiĭ. O K OK; Grintsevich. I I II; Grigor'eva. Z G ZG; Morozov. V G VG; Khavinson. V...
In a guinea‑pig study, giving the peptide thymalin boosted the number of small immune cells in the thymus, while a related peptide called hemalin raised medium‑sized immune cells and early‑stage cells. Thymalin also made certain thymus cells' nuclei bigger.
Val'kovich. E I EI; Popov. B V BV; Rakovshchik. A L AL
The study shows that a thymus‑derived peptide called thymalin can boost the growth of certain blood‑forming cells (granulocytic colonies) in the spleen of mice that had their thymus removed, and it can also help normalize bone‑marrow cell development when given to live animals. This effect seems to involve a special T‑cell that directs how these colonies form, and the peptide works both in test‑tube (in vitro) and live‑animal (in vivo) settings.
Kokotov. Iu K IuK; Budazhabon. G B GB; Kuznik. B I BI; Darenskiĭ. D I DI; Morozov. V G VG
In a study of 63 people with a serious belly infection, giving the peptide thymalin—either alone or together with the blood‑thinner heparin—helped the illness settle faster and improved immune and clot‑related lab tests. The combo was especially helpful for older patients or those at higher risk of blood clots.
Vishnevskiĭ. A A AA; Orlov. A B AB; Tikhodeev. S A SA
The study looked at 54 people with spine infections and found that many had weak T‑cell immunity. The authors suggest adding immune‑boosting drugs like thymalin (a peptide that supports T‑cells) to the standard infection treatment, while other drugs are recommended if B‑cells are weak.
Hrinevych. Iu Ia IuIa; Bendiuh. H D HD; Khranovs'ka. N M NM; Bilokin'. Iu M IuM; Ostapenko. O M OM
In rats that had their thyroid removed, the thymus shrank and cell growth slowed, leading to weight loss. Giving them thyroid hormone (thyroxine) and the peptide thymalin prevented most of these problems, keeping the thymus healthier. The study was done in animals with a specific surgery, not in healthy people, so it doesn’t directly tell us how to use thymalin for everyday health.
In mice with lung cancer, a thymus‑derived peptide called thymulin changed natural‑killer cell activity, while zinc helped keep the thymus from shrinking and cut the spread of cancer to the lungs. However, giving both together cancelled zinc’s benefit.
Kulikova. E E; Golovko. N N; Chumakova. A A; Panchenko. T T
The study examined children with fluid‑filled middle ears (secretory otitis media). About half had past or current Epstein‑Barr virus infection, which was linked to weaker immune cell numbers. Kids treated with the peptide thymalin (sometimes combined with a bacterial lysate called Broncho‑Vaxom) had fewer ear‑infection relapses and better immune markers than those who didn’t get thymalin.