Siberian Chaga Used in Russia as Cancer Drug
If you discover a black, cancerous mass on a birch, you may be looking at a Siberian chaga mushroom. It can also, less commonly, be found growing ash, beech, elm or hornbeam.
Europeans have used chaga for centuries as a cure for digestive ailments, tuberculosis, and cancers of the liver and heart. [121]
The black “skin” was removed and the lighter inside boiled as tea. Being such a compact natural medicine made it a valuable, portable remedy for healers of old.
Modern research on chaga has mainly focused on its potential application as an anti-cancer remedy. In Russia, this usage was already approved as early as 1955 to treat lung, stomach, breast and cervical cancers. [122]
One modern study from 1998 showed that chaga extract did in fact inhibit growth of cervical cancer cell lines under lab conditions. [123] Another study from 1995 reported that an isolate of the active compound betulin first inhibited growth of melanoma cells in a lab, and then killed them. [124, 25]
Other research papers also confirm that some of the active compounds of chaga help retard the growth of cancer cells. [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 amusing aside not related to human health, Siberian chaga may even be used as a tree medicine. Paul Stamets relates a story of a Quebec arborist using a chaga poultice to heal chestnut blight. Not only does it cure the tree, but the tree even becomes resistant to further infections of blight after having been treated. [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.
Credits: Thank you, Paul Stamets, for research references.
Dr. Rafael has worked in the natural health field since finishing Chiropractic College in 1996. He currently specializes in medicinal fungi in partnership with Cordyceps Reishi Extracts, LLC, an NC business offering Chaga Mushroom Extract and much more. For the scientific references to this article, go to the Chaga Extract page and click on any number indicating a reference.
February 08 2010 06:28 pm | herbal remedies