Relaxin and insulin-like peptide-3 (INSL3) are closely related reproductive hormones that are derived from a common ancestor. Relaxin was initially named for its ability to relax the pubic symphysis in pregnant guinea pigs at parturition. Since then relaxin has been found to be involved in many physiological processes based on its ability to stimulate the breakdown and remodeling of collagen fibers. INSL3 is also known as Leydig insulin-like hormone and the relaxin-like factor, and is produced by the Leydig cells in the testis, the thecal and luteal cells of the ovary, the thyroid, placenta and mammary gland. INSL3 induces transabdominal testicular descent by stimulating the development of the gubernacular ligament, which subsequently swells and contracts to pull the fetal testes towards the inguinal wall. In adults however, evidence suggests that INSL3 is involved in reproductive function, acting to promote the survival of male and female germ cells.
| Identifer | oai:union.ndltd.org:ADTP/245597 |
| Creators | Scott, Daniel James |
| Source Sets | Australiasian Digital Theses Program |
| Language | English |
| Detected Language | English |
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