NUCB2 and Endometrial Cyst: The stronger nesfatin-1 signal was identified in the glandular epithelium (GE) and endometrial stroma cells (SC) in the uterus of control animals (C2 group), as well as in the uterine gland secretion and in the wall of endometrial cysts (CE), including within the purulent area (CEH2 and P2 group) (Fig. 2B).