Glucagon suppression of total but not of acylated ghrelin is preserved in obesity; the impact on appetite control - Arafat, AM; Adamidou, A; Otto, B; Weickert, MO; Perschel, FH; Spranger, J; Schöfl, C; Möhlig, M; Pfeiffer, AFH (Experimental and Clinical Endocrinology & Diabetes, 2008)