Journal
NEUROPEPTIDES
Volume 45, Issue 3, Pages 189-195Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.npep.2011.01.005
Keywords
beta-Casomorphin; Opioid peptides; ALTE; SIDS; Dipeptidyl peptidase IV; Breast feeding; Formula feeding
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Funding
- Ministry of Science and Higher Education [N 407 058 32/2527]
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Casein-derived peptides have been suggested to play a role in sudden infant death syndrome (SIDS). In this study, we have determined the content of bovine beta-casomorphin-7 (bBCM-7) and the activity of dipeptidyl peptidase-IV (DPPIV) in sera of infants with apparent life threatening events (ALTE syndromes, 'near miss SIDS'). We have found that the sera of some infants after an apnoea event contained more beta-casomorphin-7 than that of the healthy infants in the same age. In all the children after an apnoea event, however, a lowered DPPIV was detected. We suspect that the low activity of that peptidase may be responsible for opioid-induced respiratory depression, induced by bBCM-7 in the general circulation. (C) 2011 Elsevier Ltd. All rights reserved.
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