Colostrum

beestingsfirst milkhyperimmune bovine colostrum
Colostrum (known colloquially as beestings, bisnings or first milk) is the first form of milk produced by the mammary glands of mammals (including many humans) immediately following delivery of the newborn.wikipedia
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Milk

cow's milkcow milkwhole milk
Colostrum (known colloquially as beestings, bisnings or first milk) is the first form of milk produced by the mammary glands of mammals (including many humans) immediately following delivery of the newborn.
Early-lactation milk contains colostrum, which carries the mother's antibodies to its young and can reduce the risk of many diseases.

Immunoglobulin A

IgAimmunoglobulin alpha-chainsA
Colostrum is known to contain immune cells (as lymphocytes) and many antibodies such as IgA, IgG, and IgM.
sIgA is the main immunoglobulin found in mucous secretions, including tears, saliva, sweat, colostrum and secretions from the genitourinary tract, gastrointestinal tract, prostate and respiratory epithelium.

Lactoferrin

lactotransferrinRecombinant human lactoferrin
Other immune components of colostrum include the major components of the innate immune system, such as lactoferrin, lysozyme, lactoperoxidase, complement, and proline-rich polypeptides (PRP).
Human colostrum ("first milk") has the highest concentration, followed by human milk, then cow milk (150 mg/L).

Mammary gland

mammaemammary glandsmammary
Colostrum (known colloquially as beestings, bisnings or first milk) is the first form of milk produced by the mammary glands of mammals (including many humans) immediately following delivery of the newborn.
In late pregnancy and for the first few days after giving birth, colostrum is secreted.

Antibody

antibodiesimmunoglobulinimmunoglobulins
Colostrum is known to contain immune cells (as lymphocytes) and many antibodies such as IgA, IgG, and IgM.
Colostrum

Immunoglobulin G

IgGIgG1IgG4
Colostrum is known to contain immune cells (as lymphocytes) and many antibodies such as IgA, IgG, and IgM.
Colostrum contains a high percentage of IgG, especially bovine colostrum.

Colostrinin

Hence they appear under various names in the literature, including Colostrinin, CLN, transfer factor and PRP.
Colostrinin (also known as CLN, proline-rich polypeptides or PRP) is a naturally occurring mixture of proline-rich polypeptides derived from colostrum.

Mammal

mammalsmammalianmammalia
Colostrum (known colloquially as beestings, bisnings or first milk) is the first form of milk produced by the mammary glands of mammals (including many humans) immediately following delivery of the newborn.

Gastrointestinal tract

intestinegastrointestinaldigestive tract
Newborns have very immature and small digestive systems, and colostrum delivers its nutrients in a very concentrated low-volume form.

Laxative

purgativelaxativesstimulant laxative
It has a mild laxative effect, encouraging the passing of the baby's first stool, which is called meconium.

Human feces

stoolfecesstools
It has a mild laxative effect, encouraging the passing of the baby's first stool, which is called meconium.

Meconium

meconium ileusmeconiafecal matter
It has a mild laxative effect, encouraging the passing of the baby's first stool, which is called meconium.

Bilirubin

hyperbilirubinemiaconjugated bilirubinunconjugated bilirubin
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 helps prevent jaundice.

Jaundice

icterusyellowish skincholestatic jaundice
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 helps prevent jaundice.

Lymphocyte

lymphocyteslymphocyticlymphoid
Colostrum is known to contain immune cells (as lymphocytes) and many antibodies such as IgA, IgG, and IgM.

Immunoglobulin M

IgMimmunoglobulin mu-chainsμ
Colostrum is known to contain immune cells (as lymphocytes) and many antibodies such as IgA, IgG, and IgM.

Lysozyme

muramidaselysozymeshuman milk ysozyme
Other immune components of colostrum include the major components of the innate immune system, such as lactoferrin, lysozyme, lactoperoxidase, complement, and proline-rich polypeptides (PRP).

Lactoperoxidase

LPO
Other immune components of colostrum include the major components of the innate immune system, such as lactoferrin, lysozyme, lactoperoxidase, complement, and proline-rich polypeptides (PRP).

Complement system

complementcomplement cascadecomplement proteins
Other immune components of colostrum include the major components of the innate immune system, such as lactoferrin, lysozyme, lactoperoxidase, complement, and proline-rich polypeptides (PRP).

Proline rich protein

proline-rich proteinsproline-rich proteinProline Rich Domain
Other immune components of colostrum include the major components of the innate immune system, such as lactoferrin, lysozyme, lactoperoxidase, complement, and proline-rich polypeptides (PRP).

ABCC11

ABCC11 geneATP-binding cassette C11 gene
Notably in humans a lack of colostrum production is linked to a mutation in the ABCC11 gene that occurs in most people of East Asian descent.

Earwax

cerumenear waxABCC11
This gene is also one the determining factors in wet or dry type earwax, as the mammary glands are a form of apocrine gland.

Apocrine sweat gland

apocrineapocrine sweat glandsapocrine gland
This gene is also one the determining factors in wet or dry type earwax, as the mammary glands are a form of apocrine gland.

Gravidity and parity

gravidprimiparouspluriparous
A German study reported that multiparous mares produced on average a liter (quart) of colostrum containing 70 grams of IgG.

Mare

broodmaremaresdam
A German study reported that multiparous mares produced on average a liter (quart) of colostrum containing 70 grams of IgG.