| Cystine (Amino Acid) |
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Cystine is a nonessential amino acid, which means the body
manufactures its own supply of this substance. However, foods such as
eggs, meat, dairy products, and whole grains are also good sources of
cystine.
Cystine is a crystalline, sulfur-containing amino acid, formed from two
molecules of the amino acid cysteine. It can be converted to cysteine by
reduction and was discovered in 1810 but was not recognized as a
component of proteins until 1899, when it was isolated from animal horn
– it is particularly abundant in skeletal and connective tissues, hair and
digestive enzymes.
Cystine is a sulfur-containing amino acid that helps form healthy skin,
hair, bones, and connective tissue. It is also required to make
glutathione, one of the natural antioxidants that fight free-radical
damage (glutathione detoxifies the liver). Each molecule of cystine is
made from two molecules of cysteine, another sulfur-containing amino
acid that, as its name suggests, is very similar to cystine; in fact, cystine
is generally regarded as the more stable form of cysteine, although both
amino acids can be converted into the other as needed.
manufactures its own supply of this substance. However, foods such as
eggs, meat, dairy products, and whole grains are also good sources of
cystine.
Cystine is a crystalline, sulfur-containing amino acid, formed from two
molecules of the amino acid cysteine. It can be converted to cysteine by
reduction and was discovered in 1810 but was not recognized as a
component of proteins until 1899, when it was isolated from animal horn
– it is particularly abundant in skeletal and connective tissues, hair and
digestive enzymes.
Cystine is a sulfur-containing amino acid that helps form healthy skin,
hair, bones, and connective tissue. It is also required to make
glutathione, one of the natural antioxidants that fight free-radical
damage (glutathione detoxifies the liver). Each molecule of cystine is
made from two molecules of cysteine, another sulfur-containing amino
acid that, as its name suggests, is very similar to cystine; in fact, cystine
is generally regarded as the more stable form of cysteine, although both
amino acids can be converted into the other as needed.
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Cystine works closely with glutathione to remove toxins from the liver. In fact, cysteine is often used in emergency rooms to treat
acetaminophen overdoses, which are known to cause liver damage. It also protects the liver and brain against toxins absorbed
from alcohol and cigarette use, and may be effective in preventing hangovers.
Cystine is required for
Required for proper vitamin B6 utilization and is also helpful in the healing of burns and wounds, breaking down mucus deposits
in illnesses such as bronchitis as well as cystic fibrosis.
Cysteine also assists in the supply of insulin to the pancreas, which is needed for the assimilation of sugars and starches.
It increases the level of glutathione in the lungs, liver, kidneys and bone marrow, and this may have an anti-aging effect on the
body by reducing age-spots etc.
It has been shown as a detoxification agent to protect the body against damage of alcohol and cigarette smoking, and may be
effective in preventing hangovers, as well as preventing liver and brain damage.
In recent years, findings about cysteine and its many functions in the body have been exciting. It can be used to help treat a
variety of problems. Cysteine can form glutathione (along with glutamic acid and glycine), a powerful antioxidant and detoxifier
that functions in many enzyme systems. Glutathione is a cofactor in many important enzymes that help protect us from the harm
of heavy metals, chemicals, and smoke. Cysteine is becoming even more important as a useful antioxidant-detoxifier-protector
with the increasing pollution and toxicity of this industrial age. A cell membrane stabilizer, it may reduce thehazards of smoking
and alcohol consumption. It specifically helps neutralize the aldehydes produced by the liver as a by-product of the metabolism of
alcohol, fats, air pollutants, and some drugs. It may also be helpful in this regard by minimizing free-radical effects, which also
contribute to a variety of degenerative processes. Cysteine in sufficient levels will bind with metals—preferentially, the heavy
metals lead, mercury, and cadmium bond most strongly—thus, cysteine aids the body's elimination of them. It helps promote
tissue healing after surgery or burns, and it also may stimulate white blood cell activity to help in disease resistance and provide
protection from mutagenesis of cells and the carcinogenic process, though further research is needed in these areas.
Deficiency of cystine
In chronic diseases it appears that the formation of cysteine from methionine is prevented, resulting in a deficiency.
Toxicity and symptoms of high intake
People suffering from diabetes should be careful when taking supplementation, as it could inactivate insulin.
acetaminophen overdoses, which are known to cause liver damage. It also protects the liver and brain against toxins absorbed
from alcohol and cigarette use, and may be effective in preventing hangovers.
Cystine is required for
Required for proper vitamin B6 utilization and is also helpful in the healing of burns and wounds, breaking down mucus deposits
in illnesses such as bronchitis as well as cystic fibrosis.
Cysteine also assists in the supply of insulin to the pancreas, which is needed for the assimilation of sugars and starches.
It increases the level of glutathione in the lungs, liver, kidneys and bone marrow, and this may have an anti-aging effect on the
body by reducing age-spots etc.
It has been shown as a detoxification agent to protect the body against damage of alcohol and cigarette smoking, and may be
effective in preventing hangovers, as well as preventing liver and brain damage.
In recent years, findings about cysteine and its many functions in the body have been exciting. It can be used to help treat a
variety of problems. Cysteine can form glutathione (along with glutamic acid and glycine), a powerful antioxidant and detoxifier
that functions in many enzyme systems. Glutathione is a cofactor in many important enzymes that help protect us from the harm
of heavy metals, chemicals, and smoke. Cysteine is becoming even more important as a useful antioxidant-detoxifier-protector
with the increasing pollution and toxicity of this industrial age. A cell membrane stabilizer, it may reduce thehazards of smoking
and alcohol consumption. It specifically helps neutralize the aldehydes produced by the liver as a by-product of the metabolism of
alcohol, fats, air pollutants, and some drugs. It may also be helpful in this regard by minimizing free-radical effects, which also
contribute to a variety of degenerative processes. Cysteine in sufficient levels will bind with metals—preferentially, the heavy
metals lead, mercury, and cadmium bond most strongly—thus, cysteine aids the body's elimination of them. It helps promote
tissue healing after surgery or burns, and it also may stimulate white blood cell activity to help in disease resistance and provide
protection from mutagenesis of cells and the carcinogenic process, though further research is needed in these areas.
Deficiency of cystine
In chronic diseases it appears that the formation of cysteine from methionine is prevented, resulting in a deficiency.
Toxicity and symptoms of high intake
People suffering from diabetes should be careful when taking supplementation, as it could inactivate insulin.
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