Extract of Reishi and Inflammation

Reishi extract has been used in Traditional Chinese Medicine to treat arthritis and other forms of inflammation for over 2,000 years. Also commonly known by its Latin name as “Ganoderma,” or Chinese “Ling Zhi,” Reishi is by far the most searched medicinal mushroom on the Internet with over 200,000 searches per month. And although it may not be the panacea (“cure-all”) that some hold it to be, the fact that modern research confirms it as an inflammation modulator may help explain why it has long been heralded as such in the Orient.

In fact, Chinese medical practitioners have been prescribing Reishi extract for ages in cases of arthritis, bronchitis and other conditions involving any type of inflammation. Modern research in Asia as well as in America and Europe confirm the validity of these uses. Out of 19 papers used for this article, 17 reported positive results in the use or Reishi extract for arthritis. Only two were studies were inconclusive, both of which were conducted by the same research team. (1,2)

A U.S. based study conducted in 1993 showed that a water extract of Ganoderma lucidum (Reishi) exhibited “significant anti-inflammatory activity.” (4) Ten years later, an Indian research paper was published which stated that the use of Reishi extract helped decrease inflammation in acute edema by 56% and in chronic edema by 60%. (3) Using the “Article References” link on this page, you will find references to seven additional research articles that confirm Reishi extract as a powerful anti-inflammatory agent. (5,6,7,8,9,10,11)

Next we’ll be looking at some studies that more directly relate to the use of Reishi extract with arthritis. A paper published in 2006 by Blum et al. claimed to provide supporting clinical evidence demonstrating that use of Reishi extract for joint health was both safe and effective. (12)

Also that same year, a Chinese study by Xi Bao et al. came to the conclusion that Reishi plus another medicinal herbal remedy commonly used in China seemed to have a “beneficial immunomodulatory effect” on arthritis. (13)

The mechanism through which Reishi achieves this beneficial effect on arthritis was suggested in a study the following year, 2007, by Ho et al., which states that GL-PP [Ganoderma lucidum polysaccharide peptide] significantly inhibited the proliferation of RASF [Rheumatoid Arthritis Synovial Fibroblasts] (14)

A number of other studies also report positive findings for using Reishi extract with arthritis (15,16,17) One of them even reports favorable results in comparing Reishi with prednisone, and without the side effects. (18) Furthermore, a different study found that supplementation with Reishi extract actually helped to balance the side effects of prednisolone experienced by some patients, including proteinuria and cell toxicity. (19) (Prednisone breaks down in the body to form prednisolone, which is the active compound.)

In conclusion, the findings of 17 out of the 19 scientific papers referenced for this article agree that Reishi can help support joint health in cases of arthritis. However, it is important to always consult a licensed medical practitioner before using any herb for medicinal purposes, and to never change the use of existing prescription drugs without talking to your doctor about it first.

Note on name confusion: The name “Reishi” is Japanese for the perennial tree mushroom that American naturalists refer to as “Varnished Conk.” In China, it is known as “Ling Zhi.” All these names usually refer to the species Ganoderma lucidum, which for the sake of distinction from other types of Reishi may sometimes be called “Common Reishi” or “Red Reishi.”

Other species frequently referred to as Reishi include: Ganoderma tsugae (Hemlock Reishi, common on Hemlocks in Eastern U.S.), Ganoderma sinense (“Black Reishi), Ganoderma resinaceum (Red Reishi), Ganoderma japonicum (Purple Reishi) and Ganoderma neo-japonicum (no common name or simply Reishi).

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