SUN-P278: Progesterone-Regulated Arginine Decline at Luteal Phase of the Menstrual Cycle and Associations with Related Amino Acids and Derivatives and Nuclear Factor Kappa B P65 Activation. (September 2017) - Winklhofer-Roob, B.M.; Faustmann, G.; Meinitzer, A.; Magnes, C.; Tiran, B.; Obermayer-Pietsch, B.; Gruber, H.-J.; Ribalta, J.; Rock, E.; Roob, J.M.