THE PLACENTA AS AN ENDOCRINE ORGAN CONTROLS PREGNANCY

Аннотация

During pregnancy, the placenta produces major protein hormones, each of which is biologically and immunologically similar to pituitary and hypothalamic hormones. Those similar to the hypothalamic hormones produced by the placenta include: gonadotropin-releasing, corticotropin-releasing, thyrotropin-releasing hormone, and somatotropin. Similar to pituitary hormones: chorionic gonadotropin, placental lactogen, chorionic corticotropin, adrenocorticotropic hormone. In addition, the following growth factors are produced: insulin-like growth factor (IGF-1), epidermal growth factor (EGF), platelet growth factor (PGF), fibroblast growth factor (FGF), transforming growth factor R (TGFP), inhibin, activin . The following are synthesized from cytokines: interleukin-1 (IL-1), interleukin-6 (IL -6), colony-stimulating factor 1 (CSF1).