[DOWNLOAD] "Antitumor and Immunostimulating Effects of Anoectochilus Formosanus Hayata." by Phytomedicine: International Journal of Phytotherapy & Phytopharmacology # eBook PDF Kindle ePub Free

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eBook details

• Title: Antitumor and Immunostimulating Effects of Anoectochilus Formosanus Hayata.
• Author : Phytomedicine: International Journal of Phytotherapy & Phytopharmacology
• Release Date : January 01, 2006
• Genre: Life Sciences,Books,Science & Nature,
• Pages : * pages
• Size : 196 KB

Description

Abstract The water extract of Anoectochilus formosanus Hayata showed a potent tumor inhibitory activity in BALB/c mice after subcutaneous transplantation of CT-26 murine colon cancer cells. The tumor-inhibition ratios of mice pre-administered with A. formosanus for 2 days before tumor transplantation, and treated further for 12 consecutive days, were 55.4% and 58.9% at the oral dose of 50 and 10 mg/mouse per day, respectively. Even for the tumor-bearing mice, after oral administration of the water extract of A. formosanus for 12 consecutive days, the tumor inhibition ratios were still 23.8% and 40.5% at doses of 50 and 10 mg/mouse, respectively. Because the low-concentration water extract of A. formosanus does not show direct cytotoxicity in CT-26 tumor cells, we observed further that oral administration of the water extract of A. formosanus may activate murine immune responses, such as stimulating the proliferation of lymphoid tissues and activating the phagocytosis of peritoneal macrophages against Staphylococcus aureus. This study suggests that the antitumor activity of A. formosanus may be associated with its potent immunostimulating effect. It is worth further analyzing the immunomodulating component purified from A. formosanus, and evaluating its potential value for the treatment of human cancers.

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