| Hormonal enteroinsular axis in newborn infants of insulin-treated diabetic mothers. | |
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MedLine Citation:
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PMID: 8077330 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To study whether the increased glucose levels in the amniotic fluid during diabetic pregnancies induce an early maturation of the hormonal enteroinsular axis, we measured blood glucose levels and plasma concentrations of C-peptide, pancreatic glucagon, enteroglucagon, and gastric inhibitory polypeptide (GIP) in cord blood from 18 newborn infants of insulin-treated diabetic mothers (IDM) and 18 infants of nondiabetic mothers. In addition, we studied the same parameters in 20 IDM and 12 control infants before and after their first feed comprising human milk (5 mL/kg), given by nasogastric tube at the age of 2 h. The IDM had significantly higher blood glucose levels and plasma C-peptide concentrations in their cord blood than the control infants, which was followed postnatally by a substantial fall in these levels, whereas a more modest decrease could be seen in the control infants. Circulating enteroglucagon and GIP concentrations at the age of 2 h were significantly higher than those observed in cord blood in both the IDM and the control infants, but the IDM had significantly lower blood glucose levels, higher plasma C-peptide, and lower enteroglucagon concentrations before the first feed. There was a significant increase in blood glucose levels after the feed in both the IDM and the control infants, and the concentrations 2 h after feeding were of the same magnitude in the two groups. No significant C-peptide response could be observed in either group, but the IDM continuously had higher C-peptide concentrations. A significant enteroglucagon and GIP response could be seen in the IDM, whereas the controls exhibited only a GIP response. However, no significant differences were found between the two groups in the absolute postprandial plasma concentrations of these hormones. Our results show rapid, substantial postnatal changes in circulating concentrations of enteroinsular hormones in both IDM and control infants. Enteral feeding with human milk corrects early postnatal hypoglycemia within 2 h in most IDM without causing any exacerbation of their hyperinsulinemia. The absence of any C-peptide response to the first feed and of any observed differences between IDM and normal infants in absolute concentrations of enteroglucagon and GIP after the first feed suggests that the enteroinsular axis matures postnatally in both groups of infants. |
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Authors:
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M Knip; P Kääpä; M Koivisto |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of clinical endocrinology and metabolism Volume: 77 ISSN: 0021-972X ISO Abbreviation: J. Clin. Endocrinol. Metab. Publication Date: 1993 Nov |
Date Detail:
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Created Date: 1994-10-06 Completed Date: 1994-10-06 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0375362 Medline TA: J Clin Endocrinol Metab Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1340-4 Citation Subset: AIM; IM |
Affiliation:
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Department of Pediatrics, University of Oulu, Finland. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Blood Glucose
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analysis C-Peptide / blood Diabetes Mellitus, Type 1 / drug therapy*, physiopathology* Digestive System / physiopathology* Enteral Nutrition Female Gastric Inhibitory Polypeptide / blood Glucagon / blood Glucagon-Like Peptides / blood Humans Infant, Newborn Insulin / therapeutic use* Islets of Langerhans / physiopathology* Male Milk, Human Pancreas / metabolism Pregnancy Pregnancy in Diabetics / physiopathology* |
| Chemical | |
Reg. No./Substance:
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0/Blood Glucose; 0/C-Peptide; 11061-68-0/Insulin; 59392-49-3/Gastric Inhibitory Polypeptide; 62340-29-8/Glucagon-Like Peptides; 9007-92-5/Glucagon |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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