The Leu7Pro polymorphism of preproNPY is associated with decreased insulin secretion, delayed ghrelin suppression and increased cardiovascular responsiveness to norepinephrine during oral glucose-tolerance test. - Jaakkola,U.; Kuusela,T.; Jartti,T.; Pesonen,U.; Koulu,M.; Vahlberg,T.; Kallio,J. (J Clin Endocrinol Metab, 2005)