Mammary gland gestation, serum progesterone remains at a stably high concentration so signaling through its receptor is continuously activated. As one of the transcribed genes, Wnts secreted from mammary epithelial cells act paracrinely to induce more neighboring cells' branching. When the lactiferous duct tree is almost ready, "leaves" alveoli are differentiated from luminal epithelial cells and added at the end of each branch. In late pregnancy and for the first few days after giving birth, colostrum is secreted. Milk secretion (lactation) begins a few days later due to reduction in circulating progesterone and the presence of another important hormone prolactin, which mediates
Just What I Am Just What I Am "Just What I Am" is a song by American hip hop recording artist Kid Cudi, released on October 2, 2012 as the lead single from his third studio album "Indicud" (2013). The song, produced by Cudi himself, features a guest appearance from his longtime friend, frequent collaborator and fellow Cleveland rapper King Chip (formerly known as Chip tha Ripper). As of January 26, 2016 "Just What I Am" has reached platinum status by the Recording Industry Association of America (RIAA). Initially, an un-mastered version of the song was released by Kid Cudi via Complex on August