Journal
PHYTOCHEMISTRY
Volume 114, Issue -, Pages 109-113Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.phytochem.2015.02.017
Keywords
Ganoderma lucidum; Ganodermataceae; Triterpenoids; Polysaccharides; Diabetes
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Funding
- National Science Council Taiwan, R.O.C [NSC100-2113-M-001-025-MY3]
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Ganoderma lucidum is a white rot fungus widely used as a tonic for the promotion of longevity and health. Extracts of G. lucidum have been recognized as an alternative adjuvant treatment for diabetes. Among the many biologically active constituents of G. lucidum, polysaccharides, proteoglycans, proteins and triter-penoids have been shown to have hypoglycemic effects. G. lucidum polysaccharides have been reported to have hypoglycemic activity by increasing plasma insulin levels and decreasing plasma sugar levels in mice. Protein tyrosine phosphatase 1B is a promising therapeutic target in diabetes, and G. lucidum proteoglycan can inhibit this enzyme in vitro. Moreover, G. lucidum triterpenoids were shown to have inhibitory activity on aldose reductase and alpha-glucosidase that can suppress postprandial hyperglycemia. In addition, a protein Ling Zhi-8 extracted from G. lucidum significantly decreased lymphocyte infiltration and increased the antibody detection of insulin in diabetic mice. This review summarizes most of the research about the hypoglycemic action effects of polysaccharides, proteoglycans, proteins and tritrerpenoids from G. lucidum as a guide for future research. (C) 2015 Elsevier Ltd. All rights reserved.
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