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Depression: 21st Century Solutions + The Dark Side of Wheat

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Article Publish Status: FREE
Abstract Title:

In Vitro Inhibition of Cytopathic Effect of Influenza Virus and Human Immunodeficiency Virus by Bamboo Leaf Extract Solution and Sodium Copper Chlorophyllin.

Abstract Source:

Yonago Acta Med. 2016 Mar ;59(1):61-5. Epub 2016 Apr 1. PMID: 27046952

Abstract Author(s):

Akiko Ito, Akeno Tsuneki, Yu Yoshida, Kazuo Ryoke, Toshiyuki Kaidoh, Seiji Kageyama

Article Affiliation:

Akiko Ito

Abstract:

BACKGROUND: Although the link between oral and oropharyngeal health status and susceptibility to infection has long been recognized, there is a limit to the selection of antiseptics for oral care.

METHODS: Madin-Darby canine kidney (MDCK) cells were exposed to influenza virus and cultured in the presence or absence of test reagents: bamboo leaf extract solution and sodium copper chrolophyllin. MDCK cells were pre-incubated with the reagents to assess the inhibitory activity at adsorption (viral attachment). Similarly, anti-HIV activity and the inhibitory mechanism at adsorption were assessed by MT-2 cell culture system. Mixture of HIV and bamboo leaf extract solution was fixed and examined by transmission electron microscopy.

RESULTS: The 50% inhibitory concentration (IC50) of bamboo leaf extract solution against influenza virus and the 50% cytotoxic concentration (CC50) in MDCK cells of the solution lay between 0.0313-0.0625% and 0.5-1.0%. The solution inhibited the influenza virus adsorption at the concentration of 0.5% (P<0.05). The values of IC50 and CC50 of sodium copper chlorophyllin lay between 50-100µM and 200-400 µM, respectively. This inhibited the virus adsorption at 200 µM (P<0.05). The bamboo leaf extract solution showed values of IC50 against HIV and CC50 in MT-2 cells at around 0.0313% and between 0.25-0.5%, respectively. This solution inhibited HIV adsorption at 1.25% (P<0.05). The IC50 and CC50 of sodium copper chlorophyllin lay between 50-100µM and 200-400 µM, respectively. Sodium copper chlorophyllin inhibited HIV adsorption at 2.5 mM (P<0.05). HIV particles survived after the exposure to 0.5% bamboo leaf extract solution.

CONCLUSION: Sodium copper chlorophyllin exerted antiviral activities against influenza virus and HIV as the major ingredient of bamboo leaf extract solution by blocking adsorption. This mechanism of action is different completely from the one of povidone-iodine.

Study Type : In Vitro Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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