The silent PPARgamma exon 6 CAC(His) -> CAT(His) polymorphism does not affect the plasma leptin levels in a collective of first degree relatives of type 2 diabetes patients from South West Germany. - Koch,M.; Rett,K.; Maerker,E.; Volk,A.; Haist,K.; Deninger,M.; Rettig,A.; Renn,W.; Haring,H.U. (Exp Clin Endocrinol Diabetes, 2000)