Saturday, August 15, 2009

Siberian Chaga Used in Russia as Cancer Drug

By Dr. Markho Rafael

Siberian chaga mushroom appears as a black mass on birch trees, dead or alive. Occasionally, it may also be seen growing on hornbeam, ash, elm or beech.

Eurasians have used it for centuries to treat tuberculosis, digestion, and cancers of the heart and liver. [121]

The traditional use was to peel the black skin of the mushroom and then boil it into a tea. Being a compact and easily portable medicinal made it very valuable to healers throughout history.

Today's scientific focus on chaga extract is primarily as an anti-tumor remedy. In fact, it was approved in Russia as a cancer drug already in 1955, successfully used to treat cancers of the stomach, lungs, breasts and cervix. [122]

A 1998 study on chaga extract showed that it did inhibit growth of cervical cancer in a lab. [123] And a 1995 study reported both growth inhibition and death of melanoma cells, also in a lab (in vitro). [124, 25]

Further research has confirmed that some of the active compounds of Siberian chaga do decrease cancer cell growth. [125, 126]

Although traditional healers used to peel off the black outside (probably because it looked unappetizing), the skin actually contains 30% betulin, a highly prized medicinal compound, [127] while the inside is rich in fungal lanostanes. So both parts would be valuable in preparing the tea.

Even better are chaga extracts that are made with not only the whole mushroom but also the mycelium, because the mycelium contains higher levels of medicinal proteins than the fruit body of the mushroom.

Other research has found chaga to possess powerful anti-viral properties. In 1996, two studies published results of inhibitory effects on both influenza virus [127] and HIV. [128] Considering the nature of viruses, the most likely scenario is that chaga works on viruses by enhancing the body's own immune system, a theory confirmed by a paper published in 2002 and another in 2005. [25, 129] The same mechanism may explain the reported anti-inflammatory effect of chaga. [130]

Alcohol extract of Siberian chaga has been shown to help balance blood sugar. [131] It is also a powerful antioxidant. [132, 133]

As an interesting anecdote that does not relate to human health but demonstrates the curative power of the Chaga mushroom, Paul Stamets mentions a Quebec arborist who uses a chaga poultice to cure chestnut blight. It not only cures the infection but the tree even becomes blight resistant after treatment. [134]

And last but not least, Paul Stamets (in Mycelium Running) lists the following areas of health where chaga has shown promising results in scientific research: Uterine cancer; liver conditions; bacteria. [134]

Note: The statements on this page have not been evaluated by the Food and Drug Administration. This article is not intended to diagnose, treat, cure or prevent any disease. Never use any herb (or mushroom) except as advised by a licensed medical practitioner.

Credit to Paul Stamets for research and source material.

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