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Opioid peptides from milk as a possible cause of sudden infant death syndrome
1Department of Anesthesiology, New York University Medical Center, NY 10016.
Insights
Opioid peptides found in milk may contribute to sudden infant death syndrome (SIDS) and near-miss SIDS in susceptible infants. Further research is needed to understand this potential link and its implications for infant health.
Area of Science:
- Biochemistry
- Pediatrics
- Neuroscience
Background:
- Breast milk and infant formula are primary infant nutrition sources.
- Opioid peptides, like beta-casomorphins, are present in both breast milk and formula.
- These peptides are absorbed into the infant's system from the gastrointestinal tract.
Purpose of the Study:
- To investigate the potential role of milk-derived opioid peptides in the etiology of sudden infant death syndrome (SIDS) and near-miss SIDS.
- To explore the connection between autonomic nervous system dysfunction and the effects of these peptides.
Main Methods:
- Isolation and identification of short chain opioid peptides (e.g., beta-casomorphins) from milk sources.
- Assessment of peptide absorption from the gastrointestinal tract.
- Correlation analysis with infants exhibiting respiratory apnea due to autonomic nervous system abnormalities.
Main Results:
- Short chain opioid peptides, including beta-casomorphins, are confirmed in both breast milk and infant formula.
- These peptides are biologically active and can be absorbed by infants.
- A potential etiological link is proposed between these peptides and SIDS/near-miss SIDS in predisposed infants.
Conclusions:
- Milk-derived opioid peptides may be a contributing factor in SIDS and near-miss SIDS.
- Infants with compromised autonomic nervous system development and respiratory control may be particularly vulnerable.
- This highlights a potential area for further investigation into infant respiratory distress and mortality.
Abstract:
Milk from breast or baby formula is the exclusive source of nutrition for newborn infants. Short chain opioid peptides such as beta-casomorphins have been isolated from breast milk as well as baby formula. These biologically active peptides are absorbed from the gastrointestinal tract. In infants predisposed to respiratory apnea because of abnormal autonomic nervous system development and respiratory control mechanisms, opioid peptides derived from milk might be one of the etiological factors for sudden infant death syndrome and near miss sudden infant death syndrome.