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Mammary secretion does NOT provides neonates
EXPLANATION
Mammary Gland Functional Anatomy, Ductular De
- Physiological Composition of Colostrum & Milk: Normal mammary secretion (colostrum and milk) provides the neonate with:
- Nutrition: Lipids, lactose, caseins, essential amino acids, and minerals.
- Bioactive Signaling Molecules: Insulin-like growth factor 1 (IGF-1), epidermal growth factor (EGF), transforming growth factor $\beta$ (TGF-$\beta$), and prolactin promoting gut mucosal maturation.
- Immunological Protection: High concentrations of maternal immunoglobulins (IgG, secretory IgA), lactoferrin, lysozyme, and maternal leukocytes.
- Exclusion: Lipopolysaccharide (LPS) is a bacterial endotoxin from Gram-negative cell envelopes; healthy mammary secretions do NOT provide LPS [Option 3].
Correct option: (3) Lipopolysacchrides
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