Evidence that endogenous thymosin alpha-1 is present in the rat central nervous system.
Turrini. P P; Aloe. L L
Key Findings
- Thymosin‑alpha‑1 is endogenously present in rat hippocampal and spinal‑cord neurons and some glial‑like cells
- Injected labeled thymosin‑alpha‑1 reaches neurons in the hypothalamus and septal nuclei
- Neuronal populations in the rat CNS both express and respond to thymosin‑alpha‑1
Practical Outcomes
- At this stage there’s no direct dosing or protocol advice for humans. The finding suggests thymosin‑alpha‑1 could influence brain health, but more research is needed before biohackers consider it for cognitive or neurological benefits.
Summary
Scientists discovered that the peptide thymosin‑alpha‑1 is naturally made in certain brain and spinal‑cord cells of rats and that brain cells can also take it up, hinting it might play a role in nervous‑system function.
Abstract
We have previously reported that administration of Thymosin alpha 1 (T-alpha1) can enhance the level of the Nerve Growth Factor and the distribution of its receptor in the developing Central Nervous System (CNS) of rat. To further explore the role of T-alpha1 and verify its presence in cells of rat CNS, we carried out an immunohistochemical study using a polyclonal antibody against T-alpha1. T-alpha1 immunoreactivity was found mainly in neurons of the hippocampus and spinal cord and in several small cells, resembling glial cells, of specific regions of the brain. Moreover, to study whether cerebral cells were receptive to T-alpha1, we injected iodinated T-alpha1 (125I-T-alpha1) i.c.v.. 125I-T-alpha1 labelled neurons were observed in the hypothalamus and septal nuclei. Our results indicate that specific neuronal populations in the rat CNS are able to express and respond to T-alpha1.
Study Information
pubmed
1999
10.1016/s0197-0186(99)00084-4