<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dwi Susiloningrum</style></author><author><style face="normal" font="default" size="100%">Adita Ayu Permanasari</style></author><author><style face="normal" font="default" size="100%">Myrna Adianti</style></author><author><style face="normal" font="default" size="100%">Lidya Tumewu</style></author><author><style face="normal" font="default" size="100%">Tutik Sri Wahyuni</style></author><author><style face="normal" font="default" size="100%">Mulyadi Tanjung</style></author><author><style face="normal" font="default" size="100%">Aty Widyawaruyanti</style></author><author><style face="normal" font="default" size="100%">Achmad Fuad Hafid</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Alkaloid Fraction from Melicope latifolia Leaves Inhibits Hepatitis C Virus</style></title><secondary-title><style face="normal" font="default" size="100%">Pharmacognosy Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Anti-HCV</style></keyword><keyword><style  face="normal" font="default" size="100%">Melicope latifolia</style></keyword><keyword><style  face="normal" font="default" size="100%">N-methylflindersine</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May 2020</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">535-540 </style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Introduction: &lt;/strong&gt;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 &lt;em&gt;Melicope latifolia &lt;/em&gt;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.&lt;strong&gt; Materials and Methods:&lt;/strong&gt; &lt;em&gt;In vitro&lt;/em&gt; Anti-HCV assay was performed using hepatocyte cell line (Huh7it) and HCV genotype 2a (JFH1). The purification of &lt;em&gt;M. latifolia &lt;/em&gt;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. &lt;strong&gt;Results: &lt;/strong&gt;The fractionation of &lt;em&gt;M. latifolia&lt;/em&gt; 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 (IC&lt;sub&gt;50&lt;/sub&gt;) value of 6.21 µg/mL, a cytotoxicity concentration (CC&lt;sub&gt;50&lt;/sub&gt;) value of 82.64 µg/mL, and a selectivity index value of 13.31. &lt;strong&gt;Conclusion: &lt;/strong&gt;An alkaloid fraction of &lt;em&gt;M. latifolia&lt;/em&gt; (B1F D2H.3) was known to have major compound named N-methylflindersine. This alkaloid fraction exhibited strong anti-HCV against JFH1 &lt;em&gt;in vitro&lt;/em&gt;. The results indicated that this alkaloid fraction may a good candidate for anti-HCV agent.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><work-type><style face="normal" font="default" size="100%">Research Article</style></work-type><section><style face="normal" font="default" size="100%">535</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Dwi Susiloningrum&lt;sup&gt;1&lt;/sup&gt;, Adita Ayu Permanasari&lt;sup&gt;2&lt;/sup&gt;, Myrna Adianti&lt;sup&gt;2,3&lt;/sup&gt;, Lidya Tumewu&lt;sup&gt;2&lt;/sup&gt;, Tutik Sri Wahyuni&lt;sup&gt;2,4&lt;/sup&gt;, Mulyadi Tanjung&lt;sup&gt;2,5&lt;/sup&gt;, Aty Widyawaruyanti&lt;sup&gt;2,4&lt;/sup&gt;, Achmad Fuad Hafid&lt;sup&gt;2,4&lt;/sup&gt;,* &lt;/strong&gt;&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;Graduate Program of Pharmaceutical Sciences, Faculty of Pharmacy, Universitas Airlangga, Surabaya 60115, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Natural Product Medicine Research and Development, Institute of Tropical Disease, Universitas Airlangga, Surabaya 60115, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;3&lt;/sup&gt;Department of Health, Traditional Medicine Study Program, Faculty of Vocational, Universitas Airlangga, Surabaya 60286, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;4&lt;/sup&gt;Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Universitas Airlangga, Surabaya 60115, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;5&lt;/sup&gt;Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya 60115, INDONESIA.&lt;/p&gt;
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