Document Detail


Neonatal insulin secretion: implications for the programming of metabolic homeostasis.
MedLine Citation:
PMID:  9200875     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Patterns of metabolic adaptation are described in the neonate, which generate two fundamental concepts. First, that early nutritional experiences may have long-term effects on the control of metabolic homeostasis, and second, that insulin has a fundamental role in this process. The endocrine pancreas in the neonate is unable to regulate insulin secretion in relation to blood glucose concentration with the same level of tight control seen in the older child and adult. Moreover, the pattern of metabolic adaptation in the fullterm infant in the first postnatal week is different to that of the preterm baby and the infant born small-for-gestational-age (SGA), with both preterm and SGA infants being unable to generate counter-regulatory ketogenesis as blood glucose concentrations fall. The inability to initiate ketogenesis and switch off insulin secretion after birth persists for several weeks in preterm infants. Methods of feeding term and preterm infants have profound effects on the neonatal endocrine milieu and it is suggested that patterns of insulin secretion provoked in the newborn period may 'programme' the subsequent development of metabolic control. The recently described molecular mechanisms that underlie the pathogenesis of abnormal insulin secretion in the syndrome of persistent hyperinsulinaemic hypoglycemia of infancy (or pancreatic nesidioblastosis) may offer insights into how such programming may occur.
Authors:
A Aynsley-Green; J M Hawdon; S Deshpande; M W Platt; K Lindley; A Lucas
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Acta paediatrica Japonica; Overseas edition     Volume:  39 Suppl 1     ISSN:  0374-5600     ISO Abbreviation:  Acta Paediatr Jpn     Publication Date:  1997 Apr 
Date Detail:
Created Date:  1997-07-30     Completed Date:  1997-07-30     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  0370357     Medline TA:  Acta Paediatr Jpn     Country:  AUSTRALIA    
Other Details:
Languages:  eng     Pagination:  S21-5     Citation Subset:  IM    
Affiliation:
Institute of Child Health, London, United Kingdom.
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological / physiology*
Age Factors
Homeostasis / physiology*
Humans
Infant, Newborn / metabolism*
Insulin / blood,  secretion*
Chemical
Reg. No./Substance:
11061-68-0/Insulin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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