Thymic hormones in human fetal skin epidermis.
Khlystova. Z S ZS; Kalinina. I I II; Khavinson. V Kh VKh
Key Findings
- Thymalin is detectable in fetal epidermal cells.
- Its levels vary with gestational age, decreasing as keratinocytes mature.
- At birth, thymalin-positive cells are located on the basal membrane and nearby layers.
Practical Outcomes
- This research provides basic insight into where thymalin naturally occurs during development, but it does not offer actionable guidance for supplementation, dosing, or performance enhancement. For biohackers, the findings are mainly of scientific interest rather than a basis for new protocols.
Summary
The study found that the thymic hormone called thymalin is present in young skin cells of human fetuses, and its amount changes as the fetus grows. As skin cells mature, fewer cells contain thymalin, and by the time of birth, the hormone is mainly found near the base of the skin layers.
Abstract
Thymic hormone thymalin is detected in young epidermal cells of human fetuses. Its content varies with gestation age. Maturation of keratinocytes in the epidermis is paralleled by a decrease in the population of young thymalin-positive cells. By birth they are located on the basal membrane and in some adjacent layers. This regularity was seen in different parts of the body.
Study Information
pubmed
2002
10.1023/a:1015571527327