<?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%">Fendi Yoga Wardana</style></author><author><style face="normal" font="default" size="100%">Defi Kartika Sari</style></author><author><style face="normal" font="default" size="100%">Myrna Adianti</style></author><author><style face="normal" font="default" size="100%">Adita Ayu Permanasari</style></author><author><style face="normal" font="default" size="100%">Lidya Tumewu</style></author><author><style face="normal" font="default" size="100%">Tomoyoshi Nozaki</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%">In vitro Anti-Amebic Activity of Cage Xanthones from Cratoxylum sumatranum Stem Bark Against Entamoeba histolytica</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%">Amoebiasis</style></keyword><keyword><style  face="normal" font="default" size="100%">Bioactivity-guided isolation</style></keyword><keyword><style  face="normal" font="default" size="100%">Cratoxylum sumatranum</style></keyword><keyword><style  face="normal" font="default" size="100%">Entamoeba histolytica</style></keyword><keyword><style  face="normal" font="default" size="100%">NAD kinase</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%">452-458</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;Background:&lt;/strong&gt; Amoebiasis is caused by&lt;em&gt; Entamoeba histolytica,&lt;/em&gt; 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. &lt;strong&gt;Objective: &lt;/strong&gt;This aims to identify the compounds in &lt;em&gt;Cratoxylum sumatranum&lt;/em&gt; for their anti-amoeba activity. &lt;strong&gt;Materials and Methods: &lt;/strong&gt;In this study we used bioactivity-guided isolation and structural analysis to identified anti-amebic compounds from dichloromethane extract of &lt;em&gt;Cratoxylum sumatranum&lt;/em&gt; stem bark. Their anti-amebic activity was determined by an &lt;em&gt;in vitro&lt;/em&gt; cell-based assay against&lt;em&gt; Entamoeba histolytica &lt;/em&gt;and an enzymatic assay on NAD kinase.&lt;strong&gt; Results:&lt;/strong&gt; 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 IC&lt;sub&gt;50&lt;/sub&gt; values of 4.57 and 12.17 μg/mL, respectively. In contrast, compound (2) yielded IC&lt;sub&gt;50&lt;/sub&gt; 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 &lt;em&gt;Cratoxylum sumatranum &lt;/em&gt;stem bark, have the potential to be further developed into effective anti-amebic medicine against &lt;em&gt;Entamoeba histolytica.&lt;/em&gt;&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%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">452</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p&gt;&lt;strong&gt;Fendi Yoga Wardana&lt;sup&gt;1&lt;/sup&gt;, Defi Kartika Sari&lt;sup&gt;2&lt;/sup&gt;, Myrna Adianti&lt;sup&gt;2,3&lt;/sup&gt;, Adita Ayu Permanasari&lt;sup&gt;2&lt;/sup&gt;, Lidya Tumewu&lt;sup&gt;2&lt;/sup&gt;, Tomoyoshi Nozaki&lt;sup&gt;4&lt;/sup&gt;, Aty Widyawaruyanti&lt;sup&gt;2,5&lt;/sup&gt;, Achmad Fuad Hafid&lt;sup&gt;2,5,&lt;/sup&gt;* &lt;/strong&gt;&lt;/p&gt;

&lt;p&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&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&gt;&lt;sup&gt;3&lt;/sup&gt;Department of Health, Faculty of Vocational Education, Universitas Airlangga, Surabaya, 60115, INDONESIA.&lt;/p&gt;

&lt;p&gt;&lt;sup&gt;4&lt;/sup&gt;Department of School of International Health, Laboratorium of Biomedical Chemistry, The University of Tokyo, Tokyo, 113-0033, JAPAN.&lt;/p&gt;

&lt;p&gt;&lt;sup&gt;5&lt;/sup&gt;Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Universitas Airlangga, Surabaya, 60115, INDONESIA.&lt;/p&gt;
</style></auth-address></record><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%">Bassem Yousef Sheikh</style></author><author><style face="normal" font="default" size="100%">Manal Mohamed Elhassan Taha</style></author><author><style face="normal" font="default" size="100%">Waleed Syaed Koko</style></author><author><style face="normal" font="default" size="100%">Siddig Ibrahim Abdelwahab</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antimicrobial Effects of Thymoquinone on Entamoeba histolytica and Giardia lamblia</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%">Entamoeba histolytica</style></keyword><keyword><style  face="normal" font="default" size="100%">Giardia lamblia.</style></keyword><keyword><style  face="normal" font="default" size="100%">Nigella sativa</style></keyword><keyword><style  face="normal" font="default" size="100%">Prophetic Medicine</style></keyword><keyword><style  face="normal" font="default" size="100%">Thymoquinone</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style  face="normal" font="default" size="100%">December 2015</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">8</style></volume><pages><style face="normal" font="default" size="100%">168-170</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Background&lt;/strong&gt;: Parasitic infections are a major difficulty in tropical and subtropical countries. Traditionally medicinal plants have been used in folk medicine to treat parasitic infections and are a valuable source of novel anti-parasitics. &lt;strong&gt;Objective: &lt;/strong&gt;In our search for therapeutic alternatives to anti- protozoal chemotherapy, thymoquinone, the active ingredient of Black cumin (Nigella sativa) was examined. &lt;strong&gt;Materials and Methods: &lt;/strong&gt;Thymoquinone was tested against Entamoeba histolytica and Giardia lamblia using in vitro susceptibility assays and the mortality of the parasites were then obtained using the standard calculations. The compound was also tested for 48 and 72 hours on both parasites. &lt;strong&gt;Results:&lt;/strong&gt; The current study indicate that the mortality of TQ showed 85.5%, 91.5% and 96.8% mortality on E. histolytica for 25 ppm at 24 hr, 48 and 72 hr, respectively, with IC50 2&amp;yen;10-19,. On the other hand, this natural compound showed a mortality of 82.83%, 91.76% and 96.62% mortality on G. lamblia for 25 ppm at 24 hr, 48 and 72 hr, respectively, with IC50 4.8&amp;yen;10-5. Metrondizole powder gave 70.9% mortality at 156 ppm at the same times.&lt;strong&gt; Conclusion:&lt;/strong&gt; The current results indicate that TQ is more potent on E. histolytica compared to G. lamblia. Further pharmacological studies were needed to help in the clinical presentation of thymoquinone.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">168</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Bassem Yousef Sheikh&lt;sup&gt;1&lt;/sup&gt;, Manal Mohamed Elhassan Taha&lt;sup&gt;2,&lt;/sup&gt; Waleed Syaed Koko&lt;sup&gt;3&lt;/sup&gt;, and Siddig Ibrahim Abdelwahab&lt;sup&gt;3&lt;/sup&gt;*&lt;/strong&gt;&lt;/p&gt;

&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;Al-Moalim MA Bin Ladin (MABL) chair for Scientific Miracles of Prophetic Medicine, College of Medicine, Taibah University, SAUDI ARABIA.&lt;/p&gt;

&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Unit of Biomedical Research, Medical Research Centre, Jazan University, P.O. Box 114 Jazan, Jazan 45142, SAUDI ARABIA.&lt;/p&gt;

&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt;3&lt;/sup&gt;Department of Microbiology, Medicinal and Aromatic Research Institute, National Research Centre, Khartoum, SAUDI ARABIA. 4Unit of Biomedical Research, Substance Abuse Research Centre, Jazan University, P.O. Box 114 Jazan, Jazan 45142, SAUDI ARABIA.&lt;/p&gt;
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