Case report of a novel variant in SMPD1 of Niemann-Pick disease type A with a liver histology from Thailand

Ngoenmak, Thitima; Somran, Julintorn; Foonoi, Montana; Srisingh, Klaita; Singpan, Nun; Tim-Aroon, Thipwimol

doi:10.1016/j.gpeds.2023.100096

Global Pediatrics

2024

DOI: 10.1016/j.gpeds.2023.100096

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Case report of a novel variant in SMPD1 of Niemann-Pick disease type A with a liver histology from Thailand

Thitima Ngoenmak,

Julintorn Somran,

Montana Foonoi

et al.

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2024

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Niemann-Pick Disease, Type A: Clinical Case of 5 Months Old Patient

Zhurkova,

Vashakmadze,

Surkov

et al. 2024

Vopr. sovr. pediatr.

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Background. Niemann-Pick disease, type A is a rare hereditary disease from the group of lysosomal storage diseases, it is characterized by early onset and progressive course. Description of this disease’s clinical cases is crucial for early diagnosis and adequate management due to its rarity, rapid progression, and the development of new pathogenetic therapy methods.Clinical case description. The disease manifested on the second month of the patient’s life with poor weight gain, frequent pneumonia, hepatosplenomegaly, diffuse muscular hypotonia, delayed motor development, and progressive neurological symptoms. Laboratory testing has revealed significant decrease in sphingomyelinase activity in blood. The heterozygous deletion c.996del in exon 2 of the SMPD1 gene has been revealed via direct automatic sequencing; it leads to frameshifting p.F333Sfs*52 (inherited from mother). Moreover, the previously described pathogenic nucleotide variant c.1252C>T (heterozygous) has been revealed in exon 3 of the SMPD1 gene; it leads to translation arrest p.Arg418* (inherited from father). Cherry-red spots were diagnosed at fundospcopy. The diagnosis of Niemann-Pick disease, type А was established according to clinical signs and molecular genetic testing results.Conclusion. The detection of physical and motor development delay, diffuse muscular hypotonia, hepatosplenomegaly, cherry-red spots at ophthalmological examination, lung involvement, recurrent pneumonia, and progressive neurological symptoms in a child during the first months of life indicates that this patient has Niemann-Pick disease, type А. Early molecular genetic testing is crucial for timely choosing the management approach and further genetic counselling of the family.

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Niemann-Pick Disease, Type A: Clinical Case of 5 Months Old Patient

Zhurkova,

Vashakmadze,

Surkov

et al. 2024

Vopr. sovr. pediatr.

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Case report of a novel variant in SMPD1 of Niemann-Pick disease type A with a liver histology from Thailand

Cited by 1 publication

References 15 publications

Niemann-Pick Disease, Type A: Clinical Case of 5 Months Old Patient

Niemann-Pick Disease, Type A: Clinical Case of 5 Months Old Patient

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