- human placental l. (HPL) l. isolated from human placentas and structurally similar to somatotropin; its biologic activity weakly mimics that of somatotropin and prolactin; secreted into maternal circulation; a deficiency of HPL during pregnancy leads to children having abnormal intrauterine and postnatal growth. SYN: choriomammotropin, chorionic “growth hormone-prolactin”, human chorionic somatomammotropic hormone, human chorionic somatomammotropin, placenta protein, placental growth hormone, purified placental protein.
* * *
lac·to·gen 'lak-tə-jən, -.jen n any hormone (as prolactin) that stimulates the production of milk see PLACENTAL LACTOGEN
* * *
lac·to·gen (lakґto-jən) [lacto- + -gen] any substance that enhances milk production, the principal one being prolactin.Medical dictionary. 2011.