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  • Title: Different clinical and genetic features of Alagille patients with progressive disease versus a jaundice-free course.
    Author: Chiang CM, Jeng YM, Ho MC, Lai MW, Li HY, Chen PL, Lee NC, Wu JF, Chiu YC, Liou BY, Ni YH, Hsu HY, Chang MH, Chen HL.
    Journal: JGH Open; 2022 Dec; 6(12):839-845. PubMed ID: 36514505.
    Abstract:
    BACKGROUND AND AIM: Alagille syndrome (ALGS) is a multisystem disorder with variable clinical courses. This study investigated the clinical and genetic features of ALGS patients with different outcomes and analyzed the liver pathology at liver transplantation (LT) compared with that in biliary atresia (BA). METHODS: We report the clinical characteristics, outcomes, and genetic mutations of 25 children with ALGS followed for a median of 7.3 years. Patients were classified into (i) jaundice-free (JF) group (resolving jaundice after 2 years of age); (ii) progressive disease (PD) group (persistent jaundice or progressive cholestasis). In addition, we analyzed the explant liver in 10 ALGS patients compared with 20 age-matched BA patients at the time of LT. RESULTS: Nine patients (36%) in the JF group had a favorable outcome, with longer native liver survival than patients with PD (n = 16, P < 0.001). Fourteen of the PD group patients received LT or died. We identified 18 different JAG1 mutations in 22 patients. Three unrelated probands in the JF group had the same de novo mutation in JAG1, c.2122-2125delCAGT. Compared with BA children, ALGS patients had lower METAVIR scores in liver pathology, higher serum albumin levels, and lower weight-for-age z-scores when receiving LT. CONCLUSION: One-third of ALGS patients had JF and a favorable course. Children with ALGS presenting with persistent jaundice beyond 2 years of age should be cautioned for poor prognosis. ALGS patients tend to have a lesser extent of cirrhosis, and more growth problems than BA patients at the time of LT.
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