Functional ontogeny of the proglucagon-derived peptide axis in the premature human neonate
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Functional ontogeny of the proglucagon-derived peptide axis in the premature human neonate. / Amin, Harish; Holst, Jens Juul; Hartmann, Bolette; Wallace, Laurie; Wright, Jim; Sigalet, David L.
In: Pediatrics, Vol. 121, No. 1, 01.2008, p. e180-6.Research output: Contribution to journal › Journal article › peer-review
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TY - JOUR
T1 - Functional ontogeny of the proglucagon-derived peptide axis in the premature human neonate
AU - Amin, Harish
AU - Holst, Jens Juul
AU - Hartmann, Bolette
AU - Wallace, Laurie
AU - Wright, Jim
AU - Sigalet, David L
PY - 2008/1
Y1 - 2008/1
N2 - BACKGROUND: The regulation of intestinal growth and development in human neonates is incompletely understood, which hinders the provision of nutrients enterally. The "hindgut" hormones glucagon-like peptides 1 and 2 have been shown to play an important role in the regulation of nutrient assimilation, intestinal growth, and function.OBJECTIVE: Our goal was to investigate the production of glucagon-like peptides 1 and 2 in premature human infants and examine the effects of prematurity and feeding on hormone release.PATIENTS AND METHODS: With informed consent, premature infants who were admitted to a tertiary neonatal intensive care nursery (gestational age: 28-32 weeks) were monitored with weekly determinations of postprandial glucagon-like peptide 1 and 2 levels. Comparison studies with groups of normal infants and adults were performed. Hormone levels were obtained by using specific radioimmunoassay for glucagon-like peptide 1 (1-36) and glucagon-like peptide 2 (1-33), modified for small sample volumes; accurate monitoring of enteral intake was performed at all of the sampling time points.RESULTS: Forty-five infants with a mean gestational age of 29.6 +/- 1.9 weeks were studied; fasting levels of both glucagon-like peptides 1 and 2 were elevated. There was no correlation between gestational age and glucagon-like peptide 2 output. However, both glucagon-like peptide 1 and 2 levels were correlated with the caloric value of feeds.CONCLUSIONS: The premature human neonate has significantly higher fasting levels of glucagon-like peptides 1 and 2 compared with adults; feeding increases these levels further. These findings suggest that the proglucagon-derived peptides may have a role in normal intestinal development and nutrient handling.
AB - BACKGROUND: The regulation of intestinal growth and development in human neonates is incompletely understood, which hinders the provision of nutrients enterally. The "hindgut" hormones glucagon-like peptides 1 and 2 have been shown to play an important role in the regulation of nutrient assimilation, intestinal growth, and function.OBJECTIVE: Our goal was to investigate the production of glucagon-like peptides 1 and 2 in premature human infants and examine the effects of prematurity and feeding on hormone release.PATIENTS AND METHODS: With informed consent, premature infants who were admitted to a tertiary neonatal intensive care nursery (gestational age: 28-32 weeks) were monitored with weekly determinations of postprandial glucagon-like peptide 1 and 2 levels. Comparison studies with groups of normal infants and adults were performed. Hormone levels were obtained by using specific radioimmunoassay for glucagon-like peptide 1 (1-36) and glucagon-like peptide 2 (1-33), modified for small sample volumes; accurate monitoring of enteral intake was performed at all of the sampling time points.RESULTS: Forty-five infants with a mean gestational age of 29.6 +/- 1.9 weeks were studied; fasting levels of both glucagon-like peptides 1 and 2 were elevated. There was no correlation between gestational age and glucagon-like peptide 2 output. However, both glucagon-like peptide 1 and 2 levels were correlated with the caloric value of feeds.CONCLUSIONS: The premature human neonate has significantly higher fasting levels of glucagon-like peptides 1 and 2 compared with adults; feeding increases these levels further. These findings suggest that the proglucagon-derived peptides may have a role in normal intestinal development and nutrient handling.
KW - Adult
KW - Age Factors
KW - Biological Markers
KW - Case-Control Studies
KW - Child
KW - Cohort Studies
KW - Energy Metabolism
KW - Female
KW - Follow-Up Studies
KW - Gastrointestinal Tract
KW - Gestational Age
KW - Glucagon-Like Peptide 1
KW - Glucagon-Like Peptide 2
KW - Glucagon-Like Peptides
KW - Humans
KW - Infant Food
KW - Infant, Newborn
KW - Infant, Premature
KW - Intensive Care Units, Neonatal
KW - Intestinal Absorption
KW - Male
KW - Pregnancy
KW - Probability
KW - Reference Values
KW - Risk Factors
U2 - 10.1542/peds.2007-1461
DO - 10.1542/peds.2007-1461
M3 - Journal article
C2 - 18166537
VL - 121
SP - e180-6
JO - Pediatrics
JF - Pediatrics
SN - 0031-4005
IS - 1
ER -
ID: 132049488