<?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%">Illyana Ismail</style></author><author><style face="normal" font="default" size="100%">Rapeah Suppian</style></author><author><style face="normal" font="default" size="100%">Habsah Mohamad</style></author><author><style face="normal" font="default" size="100%">Siti Aisha Mohd Radzi</style></author><author><style face="normal" font="default" size="100%">Hasmah Abdullah</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">In vitro Cytotoxicity and Apoptosis-inducing Activity of Quercus infectoria Extracts in HeLa Cells</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%">Apoptosis</style></keyword><keyword><style  face="normal" font="default" size="100%">Cell cycle</style></keyword><keyword><style  face="normal" font="default" size="100%">Cytotoxicity</style></keyword><keyword><style  face="normal" font="default" size="100%">HeLa cells</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus infectoria</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%">March 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%">401-410</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;&lt;em&gt;Quercus infectoria&lt;/em&gt; galls (QI) extracts were previously reported to have cytotoxicity effects towards human cervical cancer cells, HeLa. However, the underlying molecular mechanisms of the extracts have been poorly determined. &lt;strong&gt;Objective: &lt;/strong&gt;The present study was undertaken to examine the effect of ethyl acetate extracts of QI (EAQI) on cell cytotoxicity and induction of apoptosis in HeLa cells. &lt;strong&gt;Materials and Method: &lt;/strong&gt;The &lt;em&gt;in vitro &lt;/em&gt;cytotoxicity was investigated by using the MTT [3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide] assay and the OD values were read at 570 nm. Meanwhile the induction of apoptosis was measured by using acridine orange and propidium iodide (AO/PI) staining, flow cytometry analysis of annexin V/PI staining and cell cycle distribution.&lt;strong&gt; Results: &lt;/strong&gt;MTT assay showed that EAQI exhibited cytotoxicity effect on HeLa cells with IC&lt;sub&gt;50 &lt;/sub&gt;of 11.50 ± 0.50 μg/ml. HeLa cells underwent apoptosis in response to EAQI treatment, demonstrated by an increase in the percentage of apoptotic cell stained with AOPI from 1.00% to 10.33% compared to untreated cell population (&lt;em&gt;p&lt;/em&gt;&amp;lt;0.05) at 72 hours of treatment. The evidence of early apoptosis in treated cells were also observed in annexin V/PI staining. Furthermore, an increase of cell population in sub G0/G1 phase revealed that apoptosis as the mode of cell death in HeLa cells treated with EAQI. &lt;strong&gt;Conclusion: &lt;/strong&gt;These findings indicated that EAQI significantly inhibits HeLa cell growth through induction of apoptosis. Further studies are needed to confirm the mechanism of cell death by expression of apoptotic cascade in HeLa cells treated with EAQI.&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%">401</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Illyana Ismail&lt;sup&gt;1&lt;/sup&gt;, Rapeah Suppian&lt;sup&gt;2&lt;/sup&gt;, Habsah Mohamad&lt;sup&gt;3&lt;/sup&gt;, Siti Aisha Mohd Radzi&lt;sup&gt;3&lt;/sup&gt;, Hasmah Abdullah&lt;sup&gt;2,&lt;/sup&gt;*&lt;/strong&gt;&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;School of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Gong Badak Campus, 21300 Kuala Terengganu, Terengganu, MALAYSIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Biomedicine Programme, School of Health Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian Kelantan, MALAYSIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;3&lt;/sup&gt;Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21300 Kuala Terengganu, Terengganu, MALAYSIA.&lt;/p&gt;
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