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Turkey Tail

Turkey Tail | Yun Zhi
COMMON NAME (Chinese Name)

Turkey Tail (Yun Zhi)

BOTANICAL NAME

Trametes, Coriolus or Polyporus versicolor

 

USES

Turkey tail is a type of medicinal mushroom that has been used for thousands of years in Traditional Chinese Medicine to treat a variety of conditions. Often used to support the immune system, it has been shown to strengthen the immune system via modulating the immune response against pathological agents. It increases the production of protective proteins and defensive cells such as interferon-y, natural killer cells, macrophages, monocytes, etc., that inhibit inflammatory signaling pathways and fight against toxins. It has even been used in conjunction with chemotherapy to relieve symptoms and improve the quality of life. A separate study showed antitumor activity via boosting the immune response against tumors, suppressing its growth, inhibiting its metastasis, reducing its size, and reducing the risk of tumor complications.

It contains natural antioxidant agents and other constituents such as polysaccharide peptide (PSP), polysaccharide-K (PSK), triterpenoid, xylose, galactose, rhamnose, and arabinose fungi-sterol and organic acids. Turkey tail is a rich source of antioxidant agents that relieve oxidative stress, reduce free radicals, improve symptoms of neurodegenerative diseases, and prevent cellular damage and the development of chronic inflammation.  

For a more common usage, Turkey Tail supports healthy digestion via modulating the gut microbiota and enhances gastrointestinal health. It acts as a prebiotic that nourish the helpful gut bacteria and improve metabolism and prevent the risk of intestinal complications such as diarrhea. Also, it may strengthen the immune system of the colon and prevent the risk of colorectal cancer.

Medical research studies reported that the turkey tail acts as an anti-inflammatory agent and improves the symptoms of diabetes and cardiovascular dysfunctions. It may also combat human papillomavirus and inhibit the growth of bacteria, including S. Aureus and S. Enterica, which causes severe infections.

Other health benefits reported in animal studies include that it improves physical performance, relieves fatigue, and increases energy production

In Chinese Medicine, it is considered  sweet and neutral to cool and affects the Spleen, Kidney, Heart and Liver meridians.

PREPARATION & ADMINISTRATION

Turkey tail can be formulated for decoction or tea preparation and pills (capsule) intended for oral administration. To make Turkey tail tea, take dried turkey tail, chop it, and boil it in water for about a half hour. You can add flavor and other ingredients if needed or wanted. It dries quickly due to less moisture content, so making a tea is helpful as it has a longer storage life.  Extracts of turkey tails containing PSP and PSK are also available as a supplement for oral intake.

PRECAUTIONS

Usually, it is safe when taken orally, however, some individuals may have side effects, including darkened nail pigmentation, nausea, vomiting, diarrhea, darkened stools, and hepatic problems. You should consult with a certified herbalist, physician or other qualified healthcare professional before taking Turkey Tail.

REFERENCES

Brown, Dorothy Cimino, and Jennifer Reetz. “Single agent polysaccharopeptide delays metastases and improves survival in naturally occurring hemangiosarcoma.” Evidence-based complementary and alternative medicine : eCAM vol. 2012 (2012): 384301. doi:10.1155/2012/384301

Donatini, Bruno. “Control of oral human papillomavirus (HPV) by medicinal mushrooms, Trametes versicolor and Ganoderma lucidum: a preliminary clinical trial.” International journal of medicinal mushrooms vol. 16,5 (2014): 497-8. doi:10.1615/intjmedmushrooms.v16.i5.80

Ho, Chun-Sheng et al. “Effect of Coriolus versicolor Mycelia Extract on Exercise Performance and Physical Fatigue in Mice.” International journal of medical sciences vol. 14,11 1110-1117. 4 Sep. 2017, doi:10.7150/ijms.20547

Janjušević, Ljiljana et al. “The lignicolous fungus Trametes versicolor (L.) Lloyd (1920): a promising natural source of antiradical and AChE inhibitory agents.” Journal of enzyme inhibition and medicinal chemistry vol. 32,1 (2017): 355-362. doi:10.1080/14756366.2016.1252759

Lau, C B S et al. “Cytotoxic activities of Coriolus versicolor (Yunzhi) extract on human leukemia and lymphoma cells by induction of apoptosis.” Life sciences vol. 75,7 (2004): 797-808. doi:10.1016/j.lfs.2004.04.001

Lu, Hailing et al. “TLR2 agonist PSK activates human NK cells and enhances the antitumor effect of HER2-targeted monoclonal antibody therapy.” Clinical cancer research : an official journal of the American Association for Cancer Research vol. 17,21 (2011): 6742-53. doi:10.1158/1078-0432.CCR-11-1142

Matijašević, Danka et al. “The Antibacterial Activity of Coriolus versicolor Methanol Extract and Its Effect on Ultrastructural Changes of Staphylococcus aureus and Salmonella Enteritidis.” Frontiers in microbiology vol. 7 1226. 4 Aug. 2016, doi:10.3389/fmicb.2016.01226

Oba, Koji et al. “Efficacy of adjuvant immunochemotherapy with polysaccharide K for patients with curative resections of gastric cancer.” Cancer immunology, immunotherapy : CII vol. 56,6 (2007): 905-11. doi:10.1007/s00262-006-0248-1

Pallav, Kumar et al. “Effects of polysaccharopeptide from Trametes versicolor and amoxicillin on the gut microbiome of healthy volunteers: a randomized clinical trial.” Gut microbes vol. 5,4 (2014): 458-67. doi:10.4161/gmic.29558

Saleh, Mohammad H et al. “Immunomodulatory Properties of Coriolus versicolor: The Role of Polysaccharopeptide.” Frontiers in immunology vol. 8 1087. 6 Sep. 2017, doi:10.3389/fimmu.2017.01087

Xian, Hui-Min et al. “Coriolus versicolor aqueous extract ameliorates insulin resistance with PI3K/Akt and p38 MAPK signaling pathways involved in diabetic skeletal muscle.” Phytotherapy research : PTR vol. 32,3 (2018): 551-560. doi:10.1002/ptr.6007

Zhou XW, Jiang H, Lin J, Tang KX. Cytotoxic activities of Coriolus versicolor (Yunzhi) extracts on human liver cancer and breast cancer cell line. African Journal of Biotechnology. 2007;6:1740–3.

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