👉 Luteolins are a group of proteins that play a crucial role in the development and function of the endometrium, which is the lining of the uterus. These proteins are responsible for regulating the menstrual cycle, including the release of estrogen and progesterone. In general, luteolins can be classified into two main groups: 1) Proliferative Luteolins (PL), which include the prolactin-releasing hormone (PRH)-like ligands (