Colostrum (, of unknown origin) is the first form of milk produced by the of humans and other immediately following delivery of the newborn. Animal colostrum may be called beestings, the traditional word from Old English dialects. Most species will begin to generate colostrum just prior to giving birth. Colostrum contains Antibody to protect the newborn against disease and infection, and immune and growth factors and other bioactives. The bioactives found in colostrum are beneficial for a newborn's health, growth and vitality. Colostrum strengthens a baby's immune system.
At birth, the environment of the newborn mammal shifts from the sterile conditions of the mother's uterus, with a constant nutrient supply via the placenta, to the microbe-rich environment outside, with irregular oral intake of complex milk nutrients through the gastrointestinal tract. This transition puts high demands on the gastrointestinal tract of the neonate, as the gut plays an important part in both the digestive system and the immune system. Colostrum contributes significantly to initial immunology defense as well as to the growth, development, and maturation of the neonate's gastrointestinal tract by providing key nutrients and bioactive factors. Bovine colostrum powder is rich in protein and low in sugar and fat. Bovine colostrum can also be used for nonorganic failure to thrive in children and acute non-steroidal anti-inflammatory drug-induced increase in intestinal permeability in males and can boost a neonate's immunity.
Colostrum also has a mild laxative effect, encouraging the passing of a baby's first Human feces, which is called meconium. This clears excess bilirubin, a waste-product of dead red blood cells which is produced in large quantities at birth due to blood volume reduction from the infant's body, and which is often responsible for jaundice.
Research on possible health benefits and medical applications of bovine colostrum is ongoing. Currently, there is no accepted medical use of bovine colostrum to treat any condition.
Newborns have very immature and small digestive systems, and colostrum delivers its bioactives in a concentrated low-volume form. Colostrum is known to contain immune cells (as lymphocytes) and many antibodies such as IgA, Immunoglobulin G, and IgM. These are some of the components of the adaptive immune system. Other immune components of colostrum include the major components of the innate immune system, such as lactoferrin, lysozyme, lactoperoxidase,
Colostrum also contains a number of , such as insulin-like growth factor I (IGF-1), and II, transforming growth factor alpha, beta 1 and beta 2, fibroblast growth factors, epidermal growth factor, granulocyte-macrophage-stimulating growth factor, platelet-derived growth factor, vascular endothelial growth factor, and colony-stimulating factor 1.
There is also research suggesting that a large proportion of colostrum is not fit for human consumption "due to tremendous bacterial loads". Salmonella was detected in 15% of unpasteurised samples. Pasteurisation reduces the bioactive proteins many of the benefits rely upon, however.
Enhanced Healing and Regeneration : BC has been shown to stimulate fibroblast activity, aiding in the repair of damaged skin and the creation of new tissue, making it effective for wound healing and scar reduction.
Anti-Aging Properties: BC is rich in antioxidants that combat free radicals, which are significant contributors to skin aging. These antioxidants, combined with growth factors, improve skin elasticity and firmness, helping to diminish the appearance of wrinkles and fine lines. A clinical study published in the Journal of Cosmetic Dermatology found that topical application of antioxidants significantly improved skin texture and reduced signs of aging in participants over a 12-week period.
Wound Healing : The immunoglobulins and lactoferrin in topically applied BC work together to improve the Bates-Jensen Wound Assessment score of chronic non-healing ulcers on day 21 of treatment.
The role of colostrum for newborn animals is to provide nutrition, and protect against infection while the immune and digestive systems are developing and maturing. Bovine colostrum provides macro- and micro-nutrients, as well as growth factors, cytokines, nucleosides, oligosaccharides, natural antimicrobials, antioxidants; and a range of immunoglobulins such as IgG, IgA, IgD, IgM and IgE. Minimal levels of IgG are essential to prevent failure of passive transfer. The iron-binding glycoproteins lactoferrin and transferrin in bovine colostrum assist in attacking pathogens by impacting their cell membrane and making them more susceptible to the immune systems attack by neutrophils. Cytokines in bovine colostrum enhance B and T cell maturation and increase endogenous antibody production. They also help regulate epithelial cell growth and development, proliferation, and restitution. Transfer factors enhance the activity of T cells. Other growth and immune factors such as IGF-1, IGF-2, FGF, EGF, TGF, PDGF, etc.
Bovine Colostrum contains bioactive components that support immunity and gut health in animals, and fight bacteria, viruses, and other pathogens. Early, high-quality colostrum is beneficial for survival and healthy development. It repairs intestinal damage and improves nutrient absorption. In calves, colostrum helps develop their gut and prevents death. It reduces infections, antibiotic use, and diarrhea, leading to faster growth and higher profits for farmers.
In humans, bovine colostrum plays a role in increasing Ig levels, increasing lymphocyte proliferation stimulating activity and increasing phagocytosis activity. These are supported by other components of colostrum which further enhance the activity of the immune response. The iron binding glycoproteins lactoferrin and transferrin in bovine colostrum assist in attacking pathogens by impacting their cell membrane and making them more susceptible to the immune systems attack by neutrophils. Cytokines present in bovine colostrum enhance B and T cell maturation and increase endogenous antibody production. They also play a major role in regulation of epithelial cell growth and development, proliferation, restitution. Transfer factors enhance the activity of T cells. Other growth and immune factors such as IGF-1, IGF-2, FGF, EGF, TGF, PDGF, etc. Colostrum contains glycomacropeptides which help to regulate appetite. Studies suggest that bovine colostrum may enhance animal immunity, improve gut health, and lower the risk of illness.
The gut can be affected by ulcers, inflammation, and infectious diarrhea. There is currently much interest in the potential value of colostrum for the prevention and treatment of these conditions., As pointed out by Kelly, inconsistency between results in some published studies may be due in part to variation in dose given and to the timing of the colostrum collection being tested (first milking versus pooled colostrum collected up to day 5 following calving).
Some athletes have used colostrum in an attempt to improve their performance, decrease recovery time, and prevent sickness during peak performance levels. Supplementation with bovine colostrum, 20 grams per day (g/d), in combination with exercise training for eight weeks may increase bone-free lean body mass in active men and women.
Low IGF-1 levels may be associated with dementia in the very elderly, although causation has not been established. Malnutrition can cause low levels of IGF-1, as can obesity. Although IGF-1 is not absorbed intact by the body, some studies suggest it stimulates the production of IGF-1 when taken as a supplement whereas others do not.
Colostrum also has antioxidant components, such as lactoferrin and hemopexin, which binds free heme in the body.
The Isle of Man had a local delicacy called "Groosniuys", a pudding made with colostrum.
In Finland, a baked cheese called Leipäjuusto is traditionally made with either cow colostrum or reindeer milk.
A sweet cheese-like delicacy called 'Junnu' or 'Ginna' is made with colostrum in the south Indian states of Karnataka, Andhra Pradesh and Telangana. It is made with both cow and buffalo milk; in both cases milk produced on the second day after birth is considered ideal for preparing this pudding-like delicacy. Colostrum is in very high demand in these states, resulting in product adulterant.
Bovine colostrum has also found application in oral and dental care. Some formulations, such as protective tooth gels designed for children, utilize colostrum's natural immunoglobulins, lactoferrin, and growth factors to support gum tissue regeneration and strengthen mucosal immunity.
One such example is a Turkish dental care brand that incorporates bovine colostrum into its pediatric protective dental gel formulations. These products are marketed as being free from synthetic preservatives and commonly used additives like SLS and parabens, focusing on biocompatible oral health support.
Use in animal husbandry
Use in companion animals
Hyperimmune
Potential applications
External links
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