Abstract
Colostrum, a nutrient-rich fluid produced by female mammals after giving birth, is the specific initial diet of mammalian neonates. Colostrum is important for the nutrition, growth, and development of newborn infants and contributes to the immunologic defense of neonates. It contains immunoglobulins, antimicrobial peptides, such as lactoferrin and lactoperoxidase, and other bioactive molecules, including growth factors, such as IGF (insulin-like growth factor), EGF (epithermal growth factor), TGF-β (transforming growth factor), and FGF (fibroblast growth factor). Bovine colostrum is a rich source of growth factors, which play a central role in wound healing. The biological activities of colostrum emphasize the relevance of the synergistic activity of growth factors to stimulate keratinocyte proliferation and migration, which are essential for tissue repair. Colostrum increases the expression of early differentiation markers, such as keratin 1 and 10 and involucrin, and late differentiation markers, including loricrin and filaggrin. Additionally, colostrum increases granulation tissue volume in the dermis, suggesting that it has a beneficial effect on wound healing. The therapeutic use of colostrum or individual peptides present in colostrum has a positive and curative influence on various gastrointestinal diseases.
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