- Coexpression of preprotachykinin A and B transcripts in the bovine corpus luteum and evidence for functional neurokinin receptor activity in luteal endothelial cells and ovarian macrophages. Brylla, E., Aust, G., Geyer, M., Uckermann, O., Löffler, S., Spanel-Borowski, K. Regul. Pept. (2005)