Substance P (SP) and neurokinin A (NKA). encoded by TAC1/Tac1 gene are members of the tachykinin family. which exert their neuromodulatory roles in vertebrate reproduction. In mammals. https://www.roneverhart.com/Castello-di-Amorosa-Il-Barone-Napa-Valley-Cabernet-Sauvignon-2007/