TABLE 5–4.
Immunologically and Pharmacologically Active Components and Hormones Observed in Human Colostrum and Milk
| Soluble | Cellular | Hormones and Hormone-like Substances |
|---|---|---|
| Immunoglobulin sIgA (11S), 7S IgA, IgG, IgM, IgE, IgD, secretory component | T lymphocytes | Epidermal growth factors |
| Cytokines (see Table 5–8) | B lymphocytes | Prostaglandins |
| Histocompatibility antigens | Neutrophils | Neurotensin |
| Complement | Macrophages | Relaxin |
| Chemotactic factors | Epithelial cells | Somatostatin |
| Properdin | Bombesin | |
| α-fetoprotein | Gonadotropins | |
| Folate uptake enhancer | Ovarian steroids | |
| Carrier proteins | Thyroid-releasing hormone | |
| Lactoferrin | Thyroid-stimulating hormone | |
| Transferrin | Thyroxine and triiodothyronine | |
| B12-binding protein | Adrenocorticotropin | |
| Lysozyme | Corticosteroids | |
| Lipoprotein lipase | Corticoid-binding protein | |
| Leukocyte enzymes | Insulin |