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International Journal of Medicinal Mushrooms
Fator do impacto: 1.423 FI de cinco anos: 1.525 SJR: 0.431 SNIP: 0.661 CiteScore™: 1.38

ISSN Imprimir: 1521-9437
ISSN On-line: 1940-4344

Volumes:
Volume 22, 2020 Volume 21, 2019 Volume 20, 2018 Volume 19, 2017 Volume 18, 2016 Volume 17, 2015 Volume 16, 2014 Volume 15, 2013 Volume 14, 2012 Volume 13, 2011 Volume 12, 2010 Volume 11, 2009 Volume 10, 2008 Volume 9, 2007 Volume 8, 2006 Volume 7, 2005 Volume 6, 2004 Volume 5, 2003 Volume 4, 2002 Volume 3, 2001 Volume 2, 2000 Volume 1, 1999

International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.v17.i8.70
pages 771-781

A 90-Day Subchronic Toxicity Study of Submerged Mycelial Culture of Cordyceps cicadae (Ascomycetes) in Rats

Yen-Lien Chen
Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
Shu-Hsing Yeh
Grape King Biotechnology Inc., Chung-Li City, Taiwan
Ting-Wei Lin
Grape King Biotechnology Inc., Chung-Li City, Taiwan
Chin-Chu Chen
Bioengineering Center, Grape King Bio Ltd, Taoyuan City, Taiwan; Department of Food Science, Nutrition and Nutraceutical Biotechnology, Shih Chien University, Taipei City, Taiwan; Institute of Biotechnology, National Changhua University of Education, Changhua County, Taiwan
Chin-Shuh Chen
Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
Chia-Feng Kuo
Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei, Taiwan

RESUMO

Cordyceps cicadae is a parasitic fungus that hibernates inside a host (Cicada flammata Dist.) and then grows its fruiting body on the surface of the insect. The complete insect/fungus combination of C. cicadae has been widely applied in Chinese traditional medicine. Recent studies have demonstrated that the medicinal benefits of cultured mycelia are as effective as those found in the wild. However, toxicological information regarding the chronic consumption of C. cicadae mycelia culture is not available. This study was conducted to evaluate the possible toxicity arising from repeated exposure to freeze-dried submerged mycelial culture of C. cicadae for 90 days. A total of eighty 8-week-old Sprague-Dawley rats were divided into 4 groups (10 males and 10 females in each group). C. cicadae was administered daily to animals by gavage at doses of 0, 500, 1000, and 2000 mg/kg body weight for 90 days. No animal deaths occurred and no treatment-related clinical signs were observed during the study period. No statistical differences in body weight gain, relative organ weight, hematology, serum chemistry, and urinalysis were observed. Gross necropsy and histopathological findings indicated that there was no treatment-related abnormality. Based on the results, the no observed adverse effect level of C. cicadae whole broth is determined to be > 2000 mg/kg for male and female Sprague-Dawley rats. The results of this study provides support for the use of C. cicadae fermentation product as a safe agent in functional food.