<?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%">Zupin, Luisa</style></author><author><style face="normal" font="default" size="100%">Polesello, Vania</style></author><author><style face="normal" font="default" size="100%">Segat, Ludovica</style></author><author><style face="normal" font="default" size="100%">Kamada, Anselmo Jiro</style></author><author><style face="normal" font="default" size="100%">Kuhn, Louise</style></author><author><style face="normal" font="default" size="100%">Crovella, Sergio</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">DEFB1 polymorphisms and HIV-1 mother-to-child transmission in Zambian population.</style></title><secondary-title><style face="normal" font="default" size="100%">J Matern Fetal Neonatal Med</style></secondary-title><alt-title><style face="normal" font="default" size="100%">J. Matern. Fetal. Neonatal. Med.</style></alt-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2018 Mar 20</style></date></pub-dates></dates><pages><style face="normal" font="default" size="100%">1-7</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;b&gt;INTRODUCTION: &lt;/b&gt;Human Beta Defensin-1 (hBD-1) is a component of the innate immune system, the first line of defence against pathogens, already reported as involved in the susceptibility to HIV-1 infection and HIV-1 mother-to-child transmission (MTCT) in different populations. We investigated the role of DEFB1 gene (encoding for hBD-1) functional polymorphisms in the susceptibility to HIV-1 MTCT in a population from Zambia.&lt;/p&gt;&lt;p&gt;&lt;b&gt;METHODS: &lt;/b&gt;Four selected polymorphisms within DEFB1 gene, three at the 5' untranslated region (UTR), namely -52G &gt; A (rs1799946), -44C &gt; G (rs1800972) and -20G &gt; A (rs11362) and one in the 3'UTR, c.*87A &gt; G (rs1800972), were genotyped in 101 HIV-1 positive mothers (26 transmitters -27% and 75 not transmitters -73%) and 331 infants born to HIV-1 infected mothers (85 HIV-1 positive -26% and 246 exposed but not infected -74%).&lt;/p&gt;&lt;p&gt;&lt;b&gt;RESULTS: &lt;/b&gt;DEFB1 c.*87-A allele was more frequent among HIV- children with respect to HIV+ (with intrauterine MTCT). Concerning DEFB1 haplotypes, GCGA haplotype resulted more represented in HIV- than HIV+ infants and DEFB1 ACGG haplotype presented increased frequency in HIV- children respect to HIV+ (with intra-partum MTCT) (p = .02, p = .002 and p = .006, respectively).&lt;/p&gt;&lt;p&gt;&lt;b&gt;CONCLUSIONS: &lt;/b&gt;DEFB1 polymorphisms were significantly associated with decreased risk of HIV-1 infection acquisition in the studied Zambian population suggesting that they may play a role in HIV-1 MTCT.&lt;/p&gt;</style></abstract><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/29506422?dopt=Abstract</style></custom1></record></records></xml>