Heterogeneity of hemochromatosis in Italy Alberto Piperno*, Maurizio Sampietro‡, Antonello Pietrangelo§, Cristina Arosio*,∥, Loredana Lupica‡, Giuliana Montosi§, Anna Vergani*, Mirella Fraquelli¶, Domenico Girelli#, Paolo Pasquero**, Antonella Roetto**, Paolo Gasparini‡‡, Silvia Fargion‡, Dario Conte¶, Clara Camaschella** Gastroenterology Volume 114, Issue 5, Pages 996-1002 (May 1998) DOI: 10.1016/S0016-5085(98)70319-1 Copyright © 1998 American Gastroenterological Association Terms and Conditions
Fig. 1 Frequency of HFE genotypes in Italian patients with a hemochromatosis phenotype divided according to geographical origin (ascertained up to the third generation). C282Y +/+ genotype: P < 0.0001 between patients of northern and central/southern Italy. Gastroenterology 1998 114, 996-1002DOI: (10.1016/S0016-5085(98)70319-1) Copyright © 1998 American Gastroenterological Association Terms and Conditions
Fig. 2 Distribution of C282Y homozygotes according to ancestral haplotype combinations and phenotype severity (based on the ratio of total IR and age [IR/age]. Class I includes patients with IR/age ≤ 0.33. Class II includes patients with IR/age > 0.33. Gastroenterology 1998 114, 996-1002DOI: (10.1016/S0016-5085(98)70319-1) Copyright © 1998 American Gastroenterological Association Terms and Conditions