Hawdon JM, Hubbard M, Hales CN, Clark PM. Use of specific immunoradiometric assay to determine preterm neonatal insulin-glucose relations.
Arch Dis Child Fetal Neonatal Ed 1995;
73:F166-9. [PMID:
8535874 PMCID:
PMC2528460 DOI:
10.1136/fn.73.3.f166]
[Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Highly specific immunoradiometric assays were used to measure plasma concentrations of insulin, proinsulin, and 32-33 split proinsulin in neonates (n = 16). Neonatal plasma insulin concentrations were high relative to blood glucose concentrations and compared with adult insulin-glucose relations. Concentrations of proinsulin and 32-33 split proinsulin together accounted for 34-70% of the total concentration of insulin and pro-peptides. This study confirms the need to use a specific assay and neonatal reference data in the diagnosis of neonatal hyperinsulinism, and shows that neonatal pancreatic beta cell function may differ from that of older subjects.
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