<?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><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%">Polesello, Vania</style></author><author><style face="normal" font="default" size="100%">Zupin, Luisa</style></author><author><style face="normal" font="default" size="100%">Di Lenarda, Roberto</style></author><author><style face="normal" font="default" size="100%">Biasotto, Matteo</style></author><author><style face="normal" font="default" size="100%">Pozzato, Gabriele</style></author><author><style face="normal" font="default" size="100%">Ottaviani, Giulia</style></author><author><style face="normal" font="default" size="100%">Gobbo, Margherita</style></author><author><style face="normal" font="default" size="100%">Crovella, Sergio</style></author><author><style face="normal" font="default" size="100%">Segat, Ludovica</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">DEFB1 polymorphisms and salivary hBD-1 concentration in Oral Lichen Planus patients and healthy subjects.</style></title><secondary-title><style face="normal" font="default" size="100%">Arch Oral Biol</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Arch. Oral Biol.</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">5' Untranslated Regions</style></keyword><keyword><style  face="normal" font="default" size="100%">Adult</style></keyword><keyword><style  face="normal" font="default" size="100%">Aged</style></keyword><keyword><style  face="normal" font="default" size="100%">Aged, 80 and over</style></keyword><keyword><style  face="normal" font="default" size="100%">beta-Defensins</style></keyword><keyword><style  face="normal" font="default" size="100%">Female</style></keyword><keyword><style  face="normal" font="default" size="100%">Genetic Predisposition to Disease</style></keyword><keyword><style  face="normal" font="default" size="100%">Genotype</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Lichen Planus, Oral</style></keyword><keyword><style  face="normal" font="default" size="100%">Male</style></keyword><keyword><style  face="normal" font="default" size="100%">Middle Aged</style></keyword><keyword><style  face="normal" font="default" size="100%">Polymorphism, Single Nucleotide</style></keyword><keyword><style  face="normal" font="default" size="100%">Saliva</style></keyword><keyword><style  face="normal" font="default" size="100%">Sequence Analysis, DNA</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2017 Jan</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">73</style></volume><pages><style face="normal" font="default" size="100%">161-165</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;OBJECTIVES: &lt;/b&gt;The aetiology of Oral Lichen Planus (OLP), a chronic inflammatory disease of oral mucosa, is not yet well understood. Since innate immunity may be hypothesized as involved in the susceptibility to OLP, we studied human beta defensin 1 (hBD-1) an antimicrobial peptide constitutively expressed in the saliva, looking at functional genetic variants possibly able to diminish hBD-1 production an consequently conferring major susceptibility to OLP.&lt;/p&gt;&lt;p&gt;&lt;b&gt;DESIGN: &lt;/b&gt;We analysed three DEFB1 polymorphisms at 5' UTR, -52G&gt;A (rs1799946), -44C&gt;G (rs1800972), -20G&gt;A (rs11362) and two DEFB1 polymorphisms at 3'UTR, c*5G&gt;A (rs1047031), c*87A&gt;G (rs1800971), with the aim of correlating these genetic variants and hBD-1 salivary level in a group of OLP patients and in healthy subjects. We also evaluated hBD-1 salivary concentrations, using ELISA, in OLP and healthy controls.&lt;/p&gt;&lt;p&gt;&lt;b&gt;RESULTS: &lt;/b&gt;We compared hBD-1 concentrations in OLP and healthy subjects: hBD-1 concentration was significantly higher in OLP patients respect to control. When considering the correlation between DEFB1 polymorphisms genotypes and hBD-1 expression levels, significant results were obtained for SNPs -52G&gt;A (p=0.03 both in OLP patients and healthy individuals) and -44C&gt;G (p=0.02 in OLP patients).&lt;/p&gt;&lt;p&gt;&lt;b&gt;CONCLUSIONS: &lt;/b&gt;hBD-1 production was different between OLP and healthy subjects (not age-matched with OLP). DEFB1 gene polymorphisms, -52G&gt;A and -44C&gt;G, correlated with hBD-1 salivary concentrations.&lt;/p&gt;</style></abstract><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/27770642?dopt=Abstract</style></custom1></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%">Celerino da Silva, Ronaldo</style></author><author><style face="normal" font="default" size="100%">da Cruz, Heidi Lacerda Alves</style></author><author><style face="normal" font="default" size="100%">Brandão, Lucas André Cavalcanti</style></author><author><style face="normal" font="default" size="100%">Guimarães, Rafael Lima</style></author><author><style face="normal" font="default" size="100%">Montenegro, Lilian Maria Lapa</style></author><author><style face="normal" font="default" size="100%">Schindler, Haiana Charifker</style></author><author><style face="normal" font="default" size="100%">Segat, Ludovica</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 gene polymorphisms and tuberculosis in a Northeastern Brazilian population.</style></title><secondary-title><style face="normal" font="default" size="100%">Braz J Microbiol</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Braz. J. Microbiol.</style></alt-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2016 Apr-Jun</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">47</style></volume><pages><style face="normal" font="default" size="100%">389-93</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;β-Defensin-1, an antimicrobial peptide encoded by the DEFB1 gene, is known to play an important role in lung mucosal immunity. In our association study we analyzed three DEFB1 functional polymorphisms -52G&gt;A (rs1799946), -44C&gt;G (rs1800972) and -20G&gt;A (rs11362) in 92 tuberculosis patients and 286 healthy controls, both from Northeast Brazil: no association was found between the studied DEFB1 polymorphisms and the disease. However we cannot exclude that this lack of association could be due to the low number of subjects analyzed, as suggested by the low statistical power achieved for the three analyzed SNPs (values between 0.16 and 0.50).&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/26991287?dopt=Abstract</style></custom1></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%">Zupin, Luisa</style></author><author><style face="normal" font="default" size="100%">Polesello, Vania</style></author><author><style face="normal" font="default" size="100%">Grasso, Domenico Leonardo</style></author><author><style face="normal" font="default" size="100%">Crovella, Sergio</style></author><author><style face="normal" font="default" size="100%">Segat, Ludovica</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">DEFB1 polymorphisms and susceptibility to recurrent tonsillitis in Italian children.</style></title><secondary-title><style face="normal" font="default" size="100%">Int J Pediatr Otorhinolaryngol</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Int. J. Pediatr. Otorhinolaryngol.</style></alt-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2016 Apr</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">83</style></volume><pages><style face="normal" font="default" size="100%">12-5</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;The tonsils are secondary lymphoid organs fundamental for immune system response against pathogens within the oral cavity. Tonsillitis refers to inflammation of the pharyngeal tonsils that may include the adenoids and the lingual tonsils and that can be acute, recurrent, and chronic. Viral or bacterial infections, as well as immunologic factors are the main trigger to tonsillitis and disease's chronicity: the host immune responses, especially the innate one, could play an important role in susceptibility to the disease.&lt;/p&gt;&lt;p&gt;&lt;b&gt;OBJECTIVES: &lt;/b&gt;The current study aims at investigating the role of functional polymorphisms in the 5'UTR (c.-52G&gt;A, c.-44G&gt;C and c.-20G&gt;A) of DEFB1 gene, encoding for the antimicrobial peptide human beta-defensin 1, in the predisposition to recurrent tonsillitis in children from North Eastern Italy.&lt;/p&gt;&lt;p&gt;&lt;b&gt;RESULTS: &lt;/b&gt;No significant correlation was found between DEFB1 allele, genotype and haplotype frequencies and recurrent tonsillitis susceptibility with the exception of an increased risk to disease development in patients carrying DEFB1 rare haplotypes.&lt;/p&gt;&lt;p&gt;&lt;b&gt;CONCLUSION: &lt;/b&gt;Our results may suggest that DEFB1 polymorphisms alone may not influence pathology susceptibility, however they could possibly concur, together with other factors involved in the genetic control of innate immune system, in the predisposition towards recurrent tonsillitis.&lt;/p&gt;</style></abstract><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/26968045?dopt=Abstract</style></custom1></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%">Segat, Ludovica</style></author><author><style face="normal" font="default" size="100%">Zupin, Luisa</style></author><author><style face="normal" font="default" size="100%">Moura, Ronald Rodrigues</style></author><author><style face="normal" font="default" size="100%">Coelho, Antônio Victor Campos</style></author><author><style face="normal" font="default" size="100%">Chagas, Bárbara Simas</style></author><author><style face="normal" font="default" size="100%">de Freitas, Antonio Carlos</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 are involved in susceptibility to human papillomavirus infection in Brazilian gynaecological patients.</style></title><secondary-title><style face="normal" font="default" size="100%">Mem Inst Oswaldo Cruz</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Mem. Inst. Oswaldo Cruz</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Adolescent</style></keyword><keyword><style  face="normal" font="default" size="100%">Adult</style></keyword><keyword><style  face="normal" font="default" size="100%">Aged</style></keyword><keyword><style  face="normal" font="default" size="100%">beta-Defensins</style></keyword><keyword><style  face="normal" font="default" size="100%">Brazil</style></keyword><keyword><style  face="normal" font="default" size="100%">Case-Control Studies</style></keyword><keyword><style  face="normal" font="default" size="100%">Female</style></keyword><keyword><style  face="normal" font="default" size="100%">Genetic Predisposition to Disease</style></keyword><keyword><style  face="normal" font="default" size="100%">Haplotypes</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Middle Aged</style></keyword><keyword><style  face="normal" font="default" size="100%">Papillomavirus Infections</style></keyword><keyword><style  face="normal" font="default" size="100%">Polymorphism, Single Nucleotide</style></keyword><keyword><style  face="normal" font="default" size="100%">Reproductive Tract Infections</style></keyword><keyword><style  face="normal" font="default" size="100%">Young Adult</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2014 Nov</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">109</style></volume><pages><style face="normal" font="default" size="100%">918-22</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The human beta defensin 1 (hBD-1) antimicrobial peptide is a member of the innate immune system known to act in the first line of defence against microorganisms, including viruses such as human papillomavirus (HPV). In this study, five functional polymorphisms (namely g-52G&gt;A, g-44C&gt;G and g-20G&gt;A in the 5'UTR and c.*5G&gt;A and c.*87A&gt;G in the 3'UTR) in the DEFB1 gene encoding for hBD-1 were analysed to investigate the possible involvement of these genetic variants in susceptibility to HPV infection and in the development of HPV-associated lesions in a population of Brazilian women. The DEFB1 g-52G&gt;A and c.*5G&gt;A single-nucleotide polymorphisms (SNPs) and the GCAAA haplotype showed associations with HPV-negative status; in particular, the c.*5G&gt;A SNP was significantly associated after multiple test corrections. These findings suggest a possible role for the constitutively expressed beta defensin-1 peptide as a natural defence against HPV in the genital tract mucosa.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">7</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/25410996?dopt=Abstract</style></custom1></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%">Zanin, Valentina</style></author><author><style face="normal" font="default" size="100%">Segat, Ludovica</style></author><author><style face="normal" font="default" size="100%">Bianco, Anna Monica</style></author><author><style face="normal" font="default" size="100%">Padovan, Lara</style></author><author><style face="normal" font="default" size="100%">Tavares, Nathalia de Alencar Cunha</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 gene 5' untranslated region (UTR) polymorphisms in inflammatory bowel diseases.</style></title><secondary-title><style face="normal" font="default" size="100%">Clinics (Sao Paulo)</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Clinics (Sao Paulo)</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">5' Untranslated Regions</style></keyword><keyword><style  face="normal" font="default" size="100%">Adult</style></keyword><keyword><style  face="normal" font="default" size="100%">Antimicrobial Cationic Peptides</style></keyword><keyword><style  face="normal" font="default" size="100%">beta-Defensins</style></keyword><keyword><style  face="normal" font="default" size="100%">Case-Control Studies</style></keyword><keyword><style  face="normal" font="default" size="100%">Colitis, Ulcerative</style></keyword><keyword><style  face="normal" font="default" size="100%">Crohn Disease</style></keyword><keyword><style  face="normal" font="default" size="100%">Female</style></keyword><keyword><style  face="normal" font="default" size="100%">Genetic Predisposition to Disease</style></keyword><keyword><style  face="normal" font="default" size="100%">Haplotypes</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Inflammatory Bowel Diseases</style></keyword><keyword><style  face="normal" font="default" size="100%">Male</style></keyword><keyword><style  face="normal" font="default" size="100%">Polymorphism, Genetic</style></keyword><keyword><style  face="normal" font="default" size="100%">Polymorphism, Single Nucleotide</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2012</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">67</style></volume><pages><style face="normal" font="default" size="100%">395-8</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">4</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/22522766?dopt=Abstract</style></custom1></record></records></xml>