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HYPERINSULINEMIC HYPOGLYCEMIA, FAMILIAL, 1, HHF1

HYPERINSULINEMIC HYPOGLYCEMIA, FAMILIAL, 1, HHF1
HHF1; PERSISTENT HYPERINSULINEMIC HYPOGLYCEMIA OF INFANCY; PHHI; NESIDIOBLASTOSIS OF PANCREAS
256450
OMIM = Online Mendelian Inheritance of Men
276575
ATP-binding cassette sub-family C member 8
11p15.1
E16.1
rare (1:40000)
autosomal dominant
autosomal recessive
mutation in the ABCC8 gene

11 known monogenic forms of hyperinsulinism and several associated syndromes [Vajravelu 2018]
- KATP Hyperinsulinism (ABCC8 or KCNJ11)
- GDH Hyperinsulinism (GLUD1)
- HNF4A and HNF1A Hyperinsulinism (HNF4A, HNF1A)
- GCK Hyperinsulinism (GCK)
- UCP2 Hyperinsulinism (UCP2)
- MCT1 Hyperinsulinism (SLC16A1)
- FOXA2 Hyperinsulinism (FOXA2)
- Beckwith-Wiedemann Syndrome (BWS)
- Kabuki Syndrome (KS)
- Turner Syndrome
- Congenital disorders of glycosylation and related mutations


Laboratory findings    3-Hydroxybutyric acid normal/dec (plasma)
    D-Glucose inc (serum)
    Free fatty acids dec (plasma)
    Insulin inc (serum)
    Insulin-like growth factor binding protein-1 (IGFBP-1) inc (serum)
    Insulin/Glucose inc (serum)
Symptoms    coma
    hyperinsulinism
    hypoglycemia
    hypoketotic hypoglycemia
    increased body hair
    increased weight for age, height and sex (>2 SD)
    macrosomia
    mental retardation
    onset, infancy
    onset, neonatal
    seizures