@article {1412, title = {Qualitative and Quantitative Analysis of 70\% Ethanol Extract from Ruta angustifolia for Developing Anti-Hepatitis C Agents}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {May 2021}, pages = {682-687}, type = {Original Article}, chapter = {682}, abstract = {

Background: Medicinal plants are potential sources for drug candidates. It possesses with various metabolites which have many pharmacology effects. Ruta angustifolia is one of medicinal plants that has been used traditionally for liver disease. Previous study it has been demonstrated to inhibit hepatitis C virus under in vitro cell culture. It decreased protein NS3 level and gave synergistic effect in combination with simeprevir and telaprevir. This plant provides a prospective candidate to develop as anti-HCV Objective: This study evaluates the phytochemistry screening for qualitative assay and determine the concentration of rutin as marker compound for developing R. angustifolia extract as anti-HCV agent. Materials and Methods: R. angustifolia leaves were extracted with 70\% of ethanol. Extract and rutin were analysis their anti-HCV activity by in vitro culture cells of Huh7it. The concentration of rutin was determine by TLC densitometry. Results: The 70\% ethanol extract of R. angustifolia dan rutin exhibit anti-HCV activities with IC50 value of 2.9 {\textpm} 0.8 μg/ml and 28.1 {\textpm} 5.6 μg/ml, respectively. Screening phytochemistry demonstrated to contain flavonoid, terpenoid, alkaloid and polyphenols. TLC densitometry analysis yield the concentration of rutin in extract 0.06 \%. Conclusion: Extract of 70\% ethanol of R. angustifolia has a potential anti-HCV activity. Extract of R. angustifolia may provide a good candidate for developing anti-HCV agents.

}, keywords = {Hepatitis C Virus, Infectious disease, Medicinal plants, Medicine, Ruta angustifolia, Rutin}, doi = {10.5530/pj.2021.13.87}, author = {Tutik Sri Wahyuni and Adita Ayu Permanasari and Lidya Tumewu and Aty Widyawaruyanti and Achmad Fuad Hafid} } @article {1160, title = {The Alkaloid Fraction from Melicope latifolia Leaves Inhibits Hepatitis C Virus}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {May 2020}, pages = {535-540 }, type = {Research Article}, chapter = {535}, abstract = {

Introduction: Hepatitis C Virus (HCV) is a major health problem, which infects approximately 170 million people among worldwide population. Moreover, there is no vaccine available to prevent HCV infection and the current anti-HCV drugs have not covered all the various genotypes and subtypes. Meanwhile, medicinal plants have been widely used to treat a variety of infectious disease. Our previous study reported that ethanol extract of Melicope latifolia has been shown to exert anti-HCV activity towards a number of different virus genotypes with mainly inhibition mechanism at the entry step. Further separation was needed to purify and identify the active anti-HCV constituent using bioactivity-guided isolation method. Materials and Methods: In vitro Anti-HCV assay was performed using hepatocyte cell line (Huh7it) and HCV genotype 2a (JFH1). The purification of M. latifolia ethanol extract (B1F) was done by liquid-liquid fractionation, vacuum liquid chromatography (VLC), and high-performance liquid chromatography (HPLC). The active fraction was further identified by thin layer chromatography (TLC) and the major constituent was determined by nuclear magnetic resonance (NMR) spectra data analysis. Results: The fractionation of M. latifolia leaves ethanol extract resulted an alkaloid fraction (B1F D2H.3) containing a major constituent N-methylflindersine. This alkaloid fraction was active to reduce HCV JFH1 with an inhibition concentration (IC50) value of 6.21 {\textmu}g/mL, a cytotoxicity concentration (CC50) value of 82.64 {\textmu}g/mL, and a selectivity index value of 13.31. Conclusion: An alkaloid fraction of M. latifolia (B1F D2H.3) was known to have major compound named N-methylflindersine. This alkaloid fraction exhibited strong anti-HCV against JFH1 in vitro. The results indicated that this alkaloid fraction may a good candidate for anti-HCV agent.

}, keywords = {Anti-HCV, Melicope latifolia, N-methylflindersine}, doi = {10.5530/pj.2020.12.81 }, author = {Dwi Susiloningrum and Adita Ayu Permanasari and Myrna Adianti and Lidya Tumewu and Tutik Sri Wahyuni and Mulyadi Tanjung and Aty Widyawaruyanti and Achmad Fuad Hafid} } @article {1132, title = {In vitro Anti-Amebic Activity of Cage Xanthones from Cratoxylum sumatranum Stem Bark Against Entamoeba histolytica}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {May 2020}, pages = {452-458}, type = {Original Article}, chapter = {452}, abstract = {

Background: Amoebiasis is caused by Entamoeba histolytica, which is a pathogenic species living on human colon tissues. The development of new drugs for anti-amebic are still very needed for clinical treatment. Objective: This aims to identify the compounds in Cratoxylum sumatranum for their anti-amoeba activity. Materials and Methods: In this study we used bioactivity-guided isolation and structural analysis to identified anti-amebic compounds from dichloromethane extract of Cratoxylum sumatranum stem bark. Their anti-amebic activity was determined by an in vitro cell-based assay against Entamoeba histolytica and an enzymatic assay on NAD kinase. Results: Two known compounds from the cage xanthone groups, namely cochinchinoxanthone (1) and cochinchinone D (2), were isolated. The structures of the cage xanthone compounds were established by extensive spectroscopic data analysis. Compound (1) showed the greatest level of anti-amebic activity both in cell-based and enzymatic assay, yielding IC50 values of 4.57 and 12.17 μg/mL, respectively. In contrast, compound (2) yielded IC50 values of 5.19 and 12.60 μg/mL, respectively. Conclusion: When considering the demonstrated anti-amebic activities, it becomes apparent that these compounds, isolated from Cratoxylum sumatranum stem bark, have the potential to be further developed into effective anti-amebic medicine against Entamoeba histolytica.

}, keywords = {Amoebiasis, Bioactivity-guided isolation, Cratoxylum sumatranum, Entamoeba histolytica, NAD kinase}, doi = {10.5530/pj.2020.12.70}, author = {Fendi Yoga Wardana and Defi Kartika Sari and Myrna Adianti and Adita Ayu Permanasari and Lidya Tumewu and Tomoyoshi Nozaki and Aty Widyawaruyanti and Achmad Fuad Hafid} }