JAG1 AND NOTCH2 GENE ANALYSIS IN ALAGILLE SYNDROME Alagille syndrome is a multi-system disorder characterized by highly variable expressivity, most frequently caused by heterozygous JAG1 gene variants. Classic diagnostic criteria combine the presence of bile duct paucity on liver biopsy with three of five systems affected (liver, heart, skeleton, eye and dysmorphic facies). However, up to one-third of patients presenting […]
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