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In vitro antioxidant and anti-cancer activities and phytochemical analysis of commelina benghalensis L. root extracts

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Asian Pacific Journal of Tropical Biomedicine 2020年第9期10卷 417-425页

作者： Riffat Batool Ejaz Aziz Javed Iqbal Hina Salahuddin Benny Kwong-Huat Tan Saira Tabassum Tariq Mahmood University Institute of Biochemistry and Biotechnology PMAS-UAAR RawalpindiPakistan Department of Botany GDC KhanpurHaripur Pakistan Department of Plant Sciences Faculty of Biological SciencesQuaid-i-Azam UniversityIslamabad-45320Pakistan Department of Zoology University of OkaraOkaraPakistan Department of Pharmacology Yong Loo Lin School of MedicineNational University of SingaporeSingapore Department of Biotechnology Faculty of Biological SciencesQuaid-i-Azam UniversityIslamabad-45320Pakistan

Objective:To explore antioxidant potential,anti-cancer activity,and phytochemicals of commelina benghalensis L.Methods:The roots of commelina benghalensis were extracted in different solvents(methanol,ethanol,benzene,chloroform,n-hexane)with a range of polarity.Antioxidant activity was evaluated by reducing power assay,DPPH radical scavenging activity and phosphomolybdenum method,cytotoxicity by MTT assay,apoptotic and cell cycle analysis by flow cytometry,migratory and invasive potential by wound scratch assay and invasion assay,respectively,functional groups analysis by FT-IR spectroscopy and phytochemicals by aluminum chloride colorimetric and FolinCiocalteu methods.Results:The extracts showed worthy antioxidant potential.The chloroform extract demonstrated the most significant cytotoxic effect on MDA-MB-231(breast cancer)cell line,induced apoptosis and reduced migratory and invasive potential of MDA-MB-231 cells.Methanol and ethanol extracts presented good yield of total phenolic and total flavonoid contents.The FTIR spectroscopic studies revealed different characteristic peak values with various functional compounds such as alkenes,alkanes,aliphatic amines,aromatics,alkyl halides,carboxylic acid,alcohols,ester,aldehydes and ketones.Conclusions:The results demonstrate the potential use of commelina benghalensis as a good antioxidant with significant anticancer effect.

关键词： commelina benghalensis Anti-cancer Antioxidant FT-IR

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Inhibitory activities of extracts of Rumex dentatus, commelina benghalensis, Ajuga bracteosa, Ziziphus mauritiana as well as their compounds of gallic acid and emodin against dengue virus

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Asian Pacific Journal of Tropical Medicine 2018年第4期11卷 265-271页

作者： Riffat Batool Ejaz Aziz Tariq Mahmood Benny KH Tan Vincent TK Chow Department of Plant Sciences Faculty of Biological Sciences Quaid-i-Azam University Department of Pharmacology Yong Loo Lin School of Medicine National University of Singapore Department of Microbiology and Immunology Yong Loo Lin School of Medicine National University of Singapore

Objective: To investigate the inhibitory effects against dengue virus serotype 2(DENV-2) by five different fractions(extracted by methanol, ethanol, benzene, chloroform and n-hexane) of Rumex dentatus, commelina benghalensis, Ajuga bracteosa and Ziziphus mauritiana, as well as their constituents(gallic acid, emodin, and isovanillic acid). Methods: All the samples were tested for cytotoxicity on baby hamster kidney cells by MTT assay and for anti-DENV-2 activity by plaque reduction neutralization assay using two DENV-2 doses(45 and 90 plaqueforming units or PFU). Results: All the samples except isovanillic acid exhibited significant prophylactic effects against DENV-2 infectivity(without cytotoxicity) when administered to cells before infection, but were not effective when given 6 h post-infection. The methanol extract of Rumex dentatus demonstrated the highest antiviral efficacy by inhibiting DENV-2 replication, with IC_(50) of 0.154 μg/mL and 0.234 μg/mL, when added before infection with 45 and 90 PFU of virus, respectively. Gallic acid also exhibited significant antiviral effects by prophylactic treatment prior to virus adsorption on cells, with IC_(50) of 0.191 μg/mL and 0.522 μg/mL at 45 and 90 PFU of DENV-2 infection, respectively. Conclusions: The highly potent activities of the extracts and constituent compounds of these plants against DENV-2 infectivity highlight their potential as targets for further research to identify novel antiviral agents against dengue.

关键词： Dengue virus Rumex dentatus commelina benghalensis Ajuga bracteosa Ziziphus mauritiana Gallic acid

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