Genotype-Phenotype Correlations in Asian Indian Children and Adolescents with Primary Hyperparathyroidism.
CASR
CDC73
Childhood and adolescent primary hyperparathyroidism
Genetics of pancreatitis
Genotype–phenotype correlation
MEN1
Journal
Calcified tissue international
ISSN: 1432-0827
Titre abrégé: Calcif Tissue Int
Pays: United States
ID NLM: 7905481
Informations de publication
Date de publication:
09 2022
09 2022
Historique:
received:
06
02
2022
accepted:
26
04
2022
pubmed:
15
5
2022
medline:
25
8
2022
entrez:
14
5
2022
Statut:
ppublish
Résumé
Childhood and adolescent primary hyperparathyroidism (PHPT) is a very rare disease. Data on its molecular genetics are scarce. We performed a retrospective analysis (January 2000-January 2021) to determine the deleterious germline variants and genotype-phenotype correlations in children and adolescents < 20 years diagnosed with PHPT from a single referral center. Clinical features, biochemistry, imaging, management, and genetics (clinical exome analyzed for 11 PHPT and 7 pancreatitis-associated genes, MLPA for CDC73) were recorded. Thirty-six patients (20 males; median age 17 years) were classified into those with familial and/or syndromic (F/S) or apparently sporadic (AS) presentation. Sixteen (44.4%) harbored pathogenic/likely pathogenic germline variants in PHPT-associated genes. The genetic yield in F/S group was 90% (MEN1:8/10; CDC73:1/10), and AS group was 26.9% (CDC73:4/26; CASR:3/26). F/S group had frequent asymptomatic presentation (60% vs none; P < 0.001), lower serum PTH (237.5 vs 1369.1 pg/mL; P = 0.001), and maximum parathyroid dimension (0.9 vs 2.2 cm; P = 0.01) than AS group. Among the AS group, renal involvement was higher in those with molecular diagnoses (71.4% vs 10.5%; P = 0.01). All those with novel CASR variants (including one homozygous) had hypercalciuria and histology-proven parathyroid adenoma/carcinoma. A missense CTRC VUS occurred in one patient with chronic pancreatitis. In summary, Asian Indian children and adolescents with PHPT have high genetic yield, even with apparently sporadic presentation. The phenotypic spectrum of CASR variants is expanded to include childhood/adolescent PHPT with hypercalciuria and single gland neoplasia. The proposed roles for renal involvement to predict molecular diagnosis among those with apparently sporadic presentation require further elucidation.
Identifiants
pubmed: 35567607
doi: 10.1007/s00223-022-00985-x
pii: 10.1007/s00223-022-00985-x
doi:
Substances chimiques
Tumor Suppressor Proteins
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
229-241Informations de copyright
© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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