The ontogeny of serum immunoreactive pancreatic lipase and cationic trypsinogen in the premature human infant

Cleghorn, G.J., Durie, P., Benjamin, L., & Dati, F. (1988) The ontogeny of serum immunoreactive pancreatic lipase and cationic trypsinogen in the premature human infant. Biology of the Neonate, 53(1), pp. 10-16.

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We evaluated the development of the exocrine pancreas in 16 healthy preterm infants (29.3 ± 1.6 weeks). The infants were fed breast milk with formula supplements (n=8) or formula alone (n=8). Growth was monitored weekly for 12 weeks then at 3, 6, 9, 12 months. At the same intervals sera were determined for pancreatic lipase and cationic trypsinogen. In addition, cord blood samples were analysed from another 33 preterm (27.6 ± 5.2 weeks) and 75 healthy full-term infants. Serum pancreatic lipase in the cord blood of term (3.7 ± 0.4 μg/l) and preterm infants (1.8 ± 0.2 μg/l) was significantly below values reported for older children (10.5 ± 0.9 μg/l; p < 0.001). In the preterm infant, serum lipase was also significantly lower than values obtained at term (p < 0.001). At birth, serum trypsinogen for preterm (16.8 ± 1.3 μg/l) and term infants (23.3 ± 1.9 μg/l) were below those for older children (31.4 ± 3.7 μg/l; p < 0.05). Over the first 3 weeks of life, serum lipase and trypsinogen increased significantly. From 3 weeks to 12 months of age, serum trypsinogen values remained unchanged, but serum lipase increased dramatically after 10 weeks of age. Thus, at 6 and 12 months of age, the preterm infants had significantly higher serum lipase values than infants of the same age born at term. These two pancreatic enzymes appear to show independent age-related maturation in infants born before term. The rate of maturation of lipase appears to be accelerated by exposure to the extrauterine environment.

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ID Code: 90832
Item Type: Journal Article
Refereed: Yes
Keywords: triacylglycerol lipase, trypsinogen, age, human, human cell, infant, major clinical study, normal value, pancreas, postnatal development, prematurity, umbilical cord blood, Aging, Fetal Blood, Infant, Newborn, Infant, Premature, Lipase, Longitudinal Studies, Support, Non-U.S. Gov't
DOI: 10.1159/000242756
ISSN: 0006-3126
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Deposited On: 30 Nov 2015 02:10
Last Modified: 30 Nov 2015 02:10

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