Tag Archives: amino acid cysteine

Cysteine – Anti-Aging Amino Acid?

Cysteine often called an anti-aging amino acid.  It appears to have many qualities that prevent or reverse aging. In fact, it has been said that aging may actually be a deficiency in cysteine.  

Cysteine is an anti-aging supporting anti-oxidant that protects cells by scavenging free radicals and chelating with heavy metals in order to keep the body clean of these ‘criminal’ elements that cause aging.

In fact, if you are into scientifically specific material, I highly suggest that you read Wulf Dröge’s article “Oxidative stress and aging: is aging a cysteine deficiency syndrome on the Royal Society Publishing website.

Cysteine – an anti-aging machine?

Cysteine, and its N-Acetyl Cysteine form, is also a precursor that provides another important anti-oxidant: glutathione. Glutathione is seen to be depleted in people who have many of the diseases frequently associated with old age. Cysteine provides a boost in glutathione levels even where it has been seen to be low in people with ailments such as Alzheimer’s, Parkinson’s, arthritis, diabetes, cancer and heart disease.  Cysteine is one of the anti-aging supporting building blocks required along with glutamine and glycine to make glutathione.   In fact, article the Washington Times called glutathione an anti-aging machine!

Cysteine and N-Acetyl-Cysteine are powerful detoxifiers – leading to a potential anti-aging effect

In a young, healthy system, cysteine is recirculated and works to remove toxins every day, bringing natural anti-aging health benefits on a daily basis.  It is when the system gets overloaded with heavy metals, poisons, radiation and free radicals of every kind that cysteine levels are seen to fall and gradually the body loses the ability to restock its storehouse of cysteine in order to prevent these toxins from causing aging.  Cysteine deficiency is a symptom of aging that can be rectified and the effects of aging and disease stopped through proper diet and the use of supplements.

N-Acetyl Cysteine form of cysteine is often used in emergency rooms to detoxify the liver if a patient has overdosed on Tylenol (acetaminophen) and is experiencing a liver failure. Obviously, there are numerous anti-aging effects of cysteine and its other forms.

Cysteine is absorbed through diet as well as the body’s anti-aging functions being able to make much of its own cysteine.  It is found in foods like poultry, eggs yolks, red peppers, garlic, onions and brussel sprouts. These are all known to be natural anti-aging type foods—and they all have cysteine! It is also easy to take through supplements.  If you are interested in anti-aging, maybe you should look into cysteine supplements to see if they might work for you!

The author of this story, Michelle Carraway, is a freelance contributor to National Nutraceuticals’ online news portals, which include Medicinal Mushroom Information Center, Amino Acid Information Center, Vancouver Health News and Today’s Word of Wisdom.  The opinions are the writer’s own and the owner and publisher of the site assume no responsibility for the accuracy of the content. Our articles are for informational, educational and entertainment purposes only. Please do your own due diligence, verify any health claims by doing additional research and consult your doctor before starting any supplementation program or making any lifestyle changes, including changes to your medication and supplementation.




Your Liver Benefits from Sulfur-Containing Amino Acids Methionine and Cysteine

The Amino Acid-Sulfur Deficiency Pattern Has Been Found in Human Chronic Liver Disease.

A study about advanced liver disease (chronic liver disease) demonstrates that the metabolism of sulfur-containing amino acids—like methionine and cysteine (but no difference in taurine)—is impaired.  A study by P Almasio, G Bianchi, et al., was done at the Clinica Medica R, Università di Palermo, in Italy. Their findings in 60 people with chronic liver disease from a clinical trial were fascinating.

Cysteine and Methionine Benefits Those Suffering from Chronic Liver Disease

In the study, 10 of the subjects were healthy (used as a control), whereas the other 50 patients had these chronic liver diseases (proven with biopsy):

30 cases of chronic hepatitis
10 cases of compensated cirrhosis
10 cases of decompensated cirrhosis
(hypermethioninemia—an extreme amount of methionine—was present in only these latter cases)

The results of this human clinical trial showed that cysteine, which is a metabolite of methionine metabolism, was “markedly reduced in patients with compensated chronic liver disease, while in advanced cirrhosis its concentration was within the normal range.”

Methionine is an essential amino acid (meaning it must be gotten through dietary proteins like beef, chicken, fish, or eggs since these proteins provide all 22 amino acids). Cysteine is a non-essential amino acid (meaning your body can produce it on its own rather than needing dietary supplementation). The amino acid taurine (in plasma levels), however, were observed between the different groups yet no differences were observed.

What was discovered was the derangement in sulfur-containing amino acid metabolism “possibly located at various steps along the trans-sulphuration pathway, is also present in mild forms of chronic liver disease.”

Methionine Benefits

The bottom line is that chronic liver disease proves out a marked deficiency of sulfur-containing amino acids in the people suffering from it for cirrhosis (except in decompensated cirrhosis), or even hepatitis. This study did not provide information on whether supplementation of methionine or cysteine would positively affect these patients with chronic liver disease; however, that these amino acids are associated with healthy livers, and abnormal in diseased livers, is certainly telling.

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