<?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%">Marilú Roxana Soto-Vásquez</style></author><author><style face="normal" font="default" size="100%">Madeleine Vanessa Horna -Pinedo</style></author><author><style face="normal" font="default" size="100%">Luciana R Tallini</style></author><author><style face="normal" font="default" size="100%">Jaume Bastida</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Chemical Composition and In Vitro Antiplasmodial Activity of the Total Alkaloids of the Bulbs of Two Amaryllidaceae Species from Northern Peru</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%">Clinanthus incarnatus</style></keyword><keyword><style  face="normal" font="default" size="100%">Clinanthus ruber</style></keyword><keyword><style  face="normal" font="default" size="100%">Plasmodium falciparum</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">July 2021</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">13</style></volume><pages><style face="normal" font="default" size="100%">1046-1052</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; The amaryllidaceae family is characterized by presenting alkaloids with powerful pharmacological activities, including antiprotozoal activity. The aim of the present work was to determine the chemical composition and evaluate the in vitro antiplasmodial activity of the total alkaloids of the bulbs of two amaryllidaceae species from northern Perú. &lt;strong&gt;Methods: &lt;/strong&gt;The total alkaloids were extracted from the bulbs using an acid-base extraction. The chemical composition of the total alkaloids was determined by GC-MS, using galantamine as a reference standard. It was investigated the in vitro antiplasmodial activity against &lt;em&gt;Plasmodium falciparum&lt;/em&gt; FCR-3 strain (chloroquine-resistant). &lt;strong&gt;Results:&lt;/strong&gt; 8 alkaloids were identified in the bulbs of &lt;em&gt;Clinanthus incarnatus&lt;/em&gt;: lycorine, galanthamine, galanthine, vittatine/crinine, hippamine, 3-O-acetylpowelline, 11,12-dehydroanhydrolycorine, 1-O-acetyllycorine with values of 19.73; 14.99; 10.36; 10.22; 10.16; 10.14; 10.04; 9.85 μg GAL/100 mg of total alkaloid (TA) respectively and 6 alkaloids in the bulbs of &lt;em&gt;Clinanthus ruber:&lt;/em&gt; lycorine, anhydrolycorine, 11,12-dehydroanhydrolycorine, 2,4-didehydro-2-dehydroxylycorine, 8-0-dimethylmaritidine, hippamine, with values of 70.2; 18; 4.15; 3.45; 6.8 and 0.1 μg GAL/100 mg TA respectively. The total alkaloids of the species of C. incarnatus and &lt;em&gt;C. ruber&lt;/em&gt; at concentrations of 1.0; 2.5; 5.0; 10.0; 25.0 and 50.0 μg/ml presented inhibition percentages of 23.5 ± 0.46% to 94 ± 0.56% against &lt;em&gt;P. falciparum&lt;/em&gt; with (p &amp;lt;0.05). They also presented IC&lt;sub&gt;50 &lt;/sub&gt;0.375 μg/ml (C. incarnatus) and IC&lt;sub&gt;50&lt;/sub&gt; 0.241 μg / ml (&lt;em&gt;C. ruber&lt;/em&gt;). &lt;strong&gt;Conclusion:&lt;/strong&gt; The main component of total alkaloids of the bulbs of two species was lycorine, in adittion, these species showed in vitro antiplasmoidal activity against Plasmodium falciparum FCR-3 strain at the doses tested.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><work-type><style face="normal" font="default" size="100%">Research Article</style></work-type><section><style face="normal" font="default" size="100%">1046</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Marilú Roxana Soto-Vásquez&lt;sup&gt;1,&lt;/sup&gt;*, Madeleine Vanessa Horna -Pinedo&lt;sup&gt;1&lt;/sup&gt;, Luciana R. Tallini&lt;sup&gt;2&lt;/sup&gt;, Jaume Bastida&lt;sup&gt;3&lt;/sup&gt;&lt;/strong&gt;&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;Facultad de Farmacia y Bioquímica. Universidad Nacional de Trujillo, Trujillo, PERU.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre RS 90610- 000, BRAZIL.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;3&lt;/sup&gt;Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan&lt;/p&gt;
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