Hepatocyte nuclear factor 4 alpha and its role in hyperinsulinaemic hypoglycaemia

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Observational analysis details how HNF4A mutations affect insulin control in newborns, suggesting early genetic diagnosis may aid management.

HNF4A mutations commonly cause hyperinsulinaemic hypoglycaemia, leading to transient or chronic neonatal hypoglycaemia.
A case of a 19-month-old boy showed that diazoxide effectively stabilized blood glucose levels with no further hypoglycaemic episodes.
Genetic testing confirmed a heterozygous HNF4A mutation, emphasizing the role of early diagnosis for managing potential MODY development.
Recognizing HNF4A mutations in patients requiring diazoxide treatment is crucial, even without typical signs or diabetes history.

Somashekar et al. (2025) studied this question.

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Observational analysis details how HNF4A mutations affect insulin control in newborns, suggesting early genetic diagnosis may aid management.