<?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%">María C. Flechas</style></author><author><style face="normal" font="default" size="100%">Raquel E. Ocazionez</style></author><author><style face="normal" font="default" size="100%">Elena E. Stashenko</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Evaluation of in vitro Antiviral Activity of Essential Oil Compounds Against Dengue 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%">Antiviral</style></keyword><keyword><style  face="normal" font="default" size="100%">Dengue</style></keyword><keyword><style  face="normal" font="default" size="100%">Essential oil</style></keyword><keyword><style  face="normal" font="default" size="100%">Flavivirus</style></keyword><keyword><style  face="normal" font="default" size="100%">Terpene</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">December 2017</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://fulltxt.org/article/366</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">55-59</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;Introduction:&lt;/strong&gt; There are not effective drugs available for treatment of dengue fever despite intensive research on synthetic inhibitors. The search for active phytochemicals could serve for the discovery of new drugs. This study aims to evaluate the antiviral activity&lt;em&gt; in vitro&lt;/em&gt; of compounds found in essential oils from medicinal plants. &lt;strong&gt;Materials and Methods:&lt;/strong&gt; Nine synthetic-derived essential oil compounds were evaluated. Antiviral effect was screened measuring the reduction of viral NS1 and E proteins in HepG-2 and Vero cells. Results: &amp;beta;-Caryophyllene was identified as the most active compound, it reduced the virus serotype-2 replication in HepG-2 cells at IC&lt;sub&gt;50&lt;/sub&gt; of 22 &amp;plusmn; 5.6 &amp;mu;M, and blocked replication of all four serotypes in Vero cells at IC&lt;sub&gt;50&lt;/sub&gt; between 8.0 &amp;mu;M and 15.0 &amp;mu;M. The selectivity indexes were between 5.3 and 10. According to results from time-in-addition assays, the antiviral effect of &amp;beta;-caryophyllene appears to be associated with interruption of early steps of the virus life cycle. Citral revealed modest antiviral effect, it reduced the virus serotype-2 (IC&lt;sub&gt;50&lt;/sub&gt; of 31 &amp;plusmn; 4.5 &amp;mu;M) replication but not the other three serotypes. Seven terpenes did not reveal antiviral activity at maximum concentration of 30 &amp;mu;M. &lt;strong&gt;Conclusion:&lt;/strong&gt; Research on compounds found in essential oils can contribute to the drug discovery effort for dengue. &amp;beta;-Caryophyllene could serve as a starting point.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">55</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p&gt;&lt;strong&gt;Mar&amp;iacute;a C. Flechas, Raquel E. Ocazionez*, Elena E. Stashenko &lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Centro de Investigaciones en Enfermedades Tropicales (CINTROP) and Centro de Investigaci&amp;oacute;n en Biomol&amp;eacute;culas (CIBIMOL), Universidad Industrial de Santander, Bucaramanga, COLOMBIA.&lt;/p&gt;</style></auth-address></record></records></xml>