What are the functions of vitamin A?
Vitamin A is A fat-soluble vitamin, in the human body, vitamin A often retinol, retinaldehyde, retinic acid these three main forms of existence.
1. Visual function
Vitamin A can promote the formation of photosensitive pigment in visual cells.Vitamin A can adjust the ability of the weak and weak that the eye ADAPTS to outside light, in order to reduce nocturnal blindness and eyesight drop occurrence, maintain normal vision response, conduce to A variety of eye disease.The role of vitamin A in vision is one of the earliest and most understood functions.
2. Maintain the health of epithelial cells and promote the synthesis of immunoglobulin
Vitamin A is involved in glycoprotein synthesis, which is important for normal epithelial formation, development and maintenance.When vitamin A is insufficient or deficient, it can lead to abnormal glycoprotein synthesis intermediates, accumulation of low molecular weight polysaccharides and lipids, resulting in thickened epithelial basal layer hyperplasia, accelerated cell division, increased tension fiber synthesis, surface layer cells become flat, irregular, dry and other changes.The intranasal, pharyngeal, laryngeal, and other respiratory, gastrointestinal, and urogenital intima are keratinized, weakening the natural barrier against bacterial invasion and predisposed to infection.Immunoglobulin is A glycoprotein, so vitamin A can promote the synthesis of this protein, has an important impact on the body's immune function, lack of cellular immunity appears to decline.
3. Maintain normal bone growth and development
Vitamin A promotes protein biosynthesis and bone cell differentiation.When it is deficient, the balance between osteoblasts and osteoclasts is destroyed, or excessive proliferation of bone is caused by increased osteogenesis, or the formed bone is not absorbed.A lack of vitamin A in pregnant women can directly affect fetal development, or even A stillbirth.
4. Promote growth and reproduction
Vitamin A is extremely important to reproductive tissues and mammalian embryogenesis, which rely on RAR for gene regulation.These effects are also realized through the regulation of cell proliferation and differentiation, especially in endochondral osteogenesis.When vitamin A is deficient, long bone formation and tooth development are impaired.Male gao wan atrophy, sperm number decreased, vitality decreased.
5. Inhibit tumor growth
In addition to affecting normal health-related evolutionary functions, vitamin A has the regulatory role of correcting A variety of pathological states.Vitamin A and its isomers can promote terminal differentiation, inhibit proliferation and promote apoptosis.In vitro studies of various cancer cell lines have shown that retinol in large doses has anticancer properties.
If you are interested in related Vitamin ELISA Kit, welcome to visit our website:
https://dldevelop.com/Research-reagent/dl-va-ge.html
1. Visual function
Vitamin A can promote the formation of photosensitive pigment in visual cells.Vitamin A can adjust the ability of the weak and weak that the eye ADAPTS to outside light, in order to reduce nocturnal blindness and eyesight drop occurrence, maintain normal vision response, conduce to A variety of eye disease.The role of vitamin A in vision is one of the earliest and most understood functions.
2. Maintain the health of epithelial cells and promote the synthesis of immunoglobulin
Vitamin A is involved in glycoprotein synthesis, which is important for normal epithelial formation, development and maintenance.When vitamin A is insufficient or deficient, it can lead to abnormal glycoprotein synthesis intermediates, accumulation of low molecular weight polysaccharides and lipids, resulting in thickened epithelial basal layer hyperplasia, accelerated cell division, increased tension fiber synthesis, surface layer cells become flat, irregular, dry and other changes.The intranasal, pharyngeal, laryngeal, and other respiratory, gastrointestinal, and urogenital intima are keratinized, weakening the natural barrier against bacterial invasion and predisposed to infection.Immunoglobulin is A glycoprotein, so vitamin A can promote the synthesis of this protein, has an important impact on the body's immune function, lack of cellular immunity appears to decline.
3. Maintain normal bone growth and development
Vitamin A promotes protein biosynthesis and bone cell differentiation.When it is deficient, the balance between osteoblasts and osteoclasts is destroyed, or excessive proliferation of bone is caused by increased osteogenesis, or the formed bone is not absorbed.A lack of vitamin A in pregnant women can directly affect fetal development, or even A stillbirth.
4. Promote growth and reproduction
Vitamin A is extremely important to reproductive tissues and mammalian embryogenesis, which rely on RAR for gene regulation.These effects are also realized through the regulation of cell proliferation and differentiation, especially in endochondral osteogenesis.When vitamin A is deficient, long bone formation and tooth development are impaired.Male gao wan atrophy, sperm number decreased, vitality decreased.
5. Inhibit tumor growth
In addition to affecting normal health-related evolutionary functions, vitamin A has the regulatory role of correcting A variety of pathological states.Vitamin A and its isomers can promote terminal differentiation, inhibit proliferation and promote apoptosis.In vitro studies of various cancer cell lines have shown that retinol in large doses has anticancer properties.
If you are interested in related Vitamin ELISA Kit, welcome to visit our website:
https://dldevelop.com/Research-reagent/dl-va-ge.html
