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  • Title: GAU-PED study for early diagnosis of Gaucher disease in children with splenomegaly and cytopenia.
    Author: Pession A, Di Rocco M, Venturelli F, Tappino B, Morello W, Santoro N, Giordano P, Filippini B, Rinieri S, Russo G, Girardi K, Ruggiero A, Galea E, Antonucci R, Tovaglieri N, Porta F, Tartaglione I, Giona F, Fagioli F, Burlina A, Pediatric Gaucher Study Group.
    Journal: Orphanet J Rare Dis; 2023 Jun 16; 18(1):151. PubMed ID: 37328863.
    Abstract:
    BACKGROUND: Gaucher disease (GD) diagnosis can be delayed due to non-specific symptoms and lack of awareness, leading to unnecessary procedures and irreversible complications. GAU-PED study aims to assess GD prevalence in a high-risk pediatric population and the presence, if any, of novel clinical or biochemical markers associated with GD. MATERIALS AND METHODS: DBS samples were collected and tested for β-glucocerebrosidase enzyme activity for 154 patients selected through the algorithm proposed by Di Rocco et al. Patients showing β-glucocerebrosidase activity below normal values were recalled to confirm the enzyme deficiency with the gold standard essay on cellular homogenate. Patients tested positive at the gold standard analysis were evaluated through GBA1 gene sequencing. RESULTS: 14 out of 154 patients were diagnosed with GD, with a prevalence of 9.09% (5.06-14.78%, CI 95%). Hepatomegaly, thrombocytopenia, anemia, growth delay/deceleration, elevated serum ferritin, elevated Lyso-Gb1 and chitotriosidase were significantly associated with GD. CONCLUSIONS: GD prevalence in a pediatric population at high-risk appeared to be higher compared to high-risk adults. Lyso-Gb1 was associated with GD diagnosis. The algorithm proposed by Di Rocco et al. can potentially improve the diagnostic accuracy of pediatric GD, allowing the prompt start of therapy, aiming to reduce irreversible complications.
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