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Pietro Varaldo

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Claudio Palmieri; Marina Mingoia; Pietro E Varaldo
Unconventional circularizable bacterial genetic structures carrying antibiotic resistance determinants.
Andrea Brenciani; Eleonora Giovanetti; Eleonora Morici; Erman Oryasin; Erika Tiberi; Pietro E Varaldo
ICESp1116, the genetic element responsible for erm(B)-mediated, inducible resistance to erythromycin in Streptococcus pyogenes.
Claudio Palmieri; Eleonora Giovanetti; Orietta Massidda; Marina Mingoia; Pietro E Varaldo
Streptococcus pneumoniae transposon Tn1545/Tn6003 changes to Tn6002 due to spontaneous excision in circular form of the erm(B)- and aphA3-containing macrolide-aminoglycoside-streptothricin (MAS) element.

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All Publications

2013: Claudio Palmieri; Marina Mingoia; Pietro E Varaldo
Unconventional circularizable bacterial genetic structures carrying antibiotic resistance determinants.
Antimicrobial agents and chemotherapy 2013;57(5):2440-1.
2012: Andrea Brenciani; Eleonora Giovanetti; Eleonora Morici; Erman Oryasin; Erika Tiberi; Pietro E Varaldo
ICESp1116, the genetic element responsible for erm(B)-mediated, inducible resistance to erythromycin in Streptococcus pyogenes.
Antimicrobial agents and chemotherapy 2012;56(12):6425-9.
2012: Claudio Palmieri; Eleonora Giovanetti; Orietta Massidda; Marina Mingoia; Pietro E Varaldo
Streptococcus pneumoniae transposon Tn1545/Tn6003 changes to Tn6002 due to spontaneous excision in circular form of the erm(B)- and aphA3-containing macrolide-aminoglycoside-streptothricin (MAS) element.
Antimicrobial agents and chemotherapy 2012;56(11):5994-7.
2012: Claudio Palmieri; Sandro Ripa; Pietro E Varaldo; Patrizia Bagnarelli; Gloria Magi; Marina Mingoia; Bruna Facinelli
Characterization of a Streptococcus suis tet(O/W/32/O)-carrying element transferable to major streptococcal pathogens.
Antimicrobial agents and chemotherapy 2012;56(9):4697-702.
2011: Carla Vignaroli; Caterina Rinaldi; Pietro E Varaldo
Striking "seesaw effect" between daptomycin nonsusceptibility and beta-lactam susceptibility in Staphylococcus haemolyticus.
Antimicrobial agents and chemotherapy 2011;55(5):2495-6; author reply 296-7.
2011: Andrea Brenciani; Erika Tiberi; Alessandro Bacciaglia; Dezemona Petrelli; Pietro E Varaldo; Eleonora Giovanetti
Two distinct genetic elements are responsible for erm(TR)-mediated erythromycin resistance in tetracycline-susceptible and tetracycline-resistant strains of Streptococcus pyogenes.
Antimicrobial agents and chemotherapy 2011;55(5):2106-12.
2011: Marina Mingoia; Emily Tili; Esther Manso; Pietro E Varaldo; Maria Pia Montanari
Heterogeneity of Tn5253-like composite elements in clinical Streptococcus pneumoniae isolates.
Antimicrobial agents and chemotherapy 2011;55(4):1453-9.
2011: Claudio Palmieri; Maria Stella Princivalli; Andrea Brenciani; Pietro E Varaldo; Bruna Facinelli
Different genetic elements carrying the tet(W) gene in two human clinical isolates of Streptococcus suis.
Antimicrobial agents and chemotherapy 2011;55(2):631-6.
2011: Claudio Palmieri; Pietro E Varaldo; Bruna Facinelli
Streptococcus suis, an Emerging Drug-Resistant Animal and Human Pathogen.
Frontiers in microbiology 2011;2():235.
2010: Monica Stauder; Adele Papetti; Maria Daglia; Luigi Vezzulli; Gabriella Gazzani; Pietro E Varaldo; Carla Pruzzo
Inhibitory activity by barley coffee components towards Streptococcus mutans biofilm.
Current microbiology 2010;61(5):417-21.
2010: Andrea Brenciani; Alessandro Bacciaglia; Carla Vignaroli; Armanda Pugnaloni; Pietro E Varaldo; Eleonora Giovanetti
Phim46.1, the main Streptococcus pyogenes element carrying mef(A) and tet(O) genes.
Antimicrobial agents and chemotherapy 2010;54(1):221-9.
2009: Pietro E Varaldo; Maria Pia Montanari; Eleonora Giovanetti
Genetic elements responsible for erythromycin resistance in streptococci.
Antimicrobial agents and chemotherapy 2009;53(2):343-53.
2008: aldo manzin; Claudio Palmieri; Corrado Serra; Barbara Saddi; Maria Stella Princivalli; Giovanni Loi; Giuseppe Angioni; Franco Tiddia; Pietro E Varaldo; Bruna Facinelli
Streptococcus suis meningitis without history of animal contact, Italy.
Emerging infectious diseases 2008;14(12):1946-8.
2008: D Minardi; Maria Pia Montanari; Emily Tili; Ileana Cochetti; Marina Mingoia; Pietro E Varaldo; G Muzzonigro
Effects of fluoroquinolones on bacterial adhesion and on preformed biofilm of strains isolated from urinary double J stents.
Journal of chemotherapy (Florence, Italy) 2008;20(2):195-201.
2008: Ileana Cochetti; Emily Tili; Marina Mingoia; Pietro E Varaldo; Maria Pia Montanari
erm(B)-carrying elements in tetracycline-resistant pneumococci and correspondence between Tn1545 and Tn6003.
Antimicrobial agents and chemotherapy 2008;52(4):1285-90.
2007: Eleonora Giovanetti; Andrea Brenciani; Alessandro Bacciaglia; Maria Pia Montanari; Pietro E Varaldo
Expressed and unexpressed tet(M) genes and the erm(B)-carrying Tn1116 transposon in Streptococcus pyogenes and Streptococcus pneumoniae.
Antimicrobial agents and chemotherapy 2007;51(12):4535; author reply 4535-6.
2007: Marina Mingoia; Manuela Vecchi; Ileana Cochetti; Emily Tili; Luca Vitali; aldo manzin; Pietro E Varaldo; Maria Pia Montanari
Composite structure of Streptococcus pneumoniae containing the erythromycin efflux resistance gene mefI and the chloramphenicol resistance gene catQ.
Antimicrobial agents and chemotherapy 2007;51(11):3983-7.
2007: Alessandro Bacciaglia; Andrea Brenciani; Pietro E Varaldo; Eleonora Giovanetti
SmaI typeability and tetracycline susceptibility and resistance in Streptococcus pyogenes isolates with efflux-mediated erythromycin resistance.
Antimicrobial agents and chemotherapy 2007;51(8):3042-3.
2007: Katia Marinelli; Patrizia Bagnarelli; Gianni Gaffi; Silvia Trappolini; Pietro Leoni; Aldo Paggi; Agnese Della Vittoria; Giorgio Scalise; Pietro E Varaldo; Stefano Menzo
PCR real time assays for the early detection of BKV-DNA in immunocompromised patients.
The new microbiologica 2007;30(3):275-8.
2007: Ileana Cochetti; Emily Tili; Manuela Vecchi; aldo manzin; Marina Mingoia; Pietro E Varaldo; Maria Pia Montanari
New Tn916-related elements causing erm(B)-mediated erythromycin resistance in tetracycline-susceptible pneumococci.
The Journal of antimicrobial chemotherapy 2007;60(1):127-31.
2007: Andrea Brenciani; Alessandro Bacciaglia; Manuela Vecchi; Luca Vitali; Pietro E Varaldo; Eleonora Giovanetti
Genetic elements carrying erm(B) in Streptococcus pyogenes and association with tet(M) tetracycline resistance gene.
Antimicrobial agents and chemotherapy 2007;51(4):1209-16.
2006: Claudio Palmieri; Manuela Vecchi; Pia Littauer; Arnfinn Sundsfjord; Pietro E Varaldo; Bruna Facinelli
Clonal spread of macrolide- and tetracycline-resistant [erm(A) tet(O)] emm77 Streptococcus pyogenes isolates in Italy and Norway.
Antimicrobial agents and chemotherapy 2006;50(12):4229-30.
2006: Cinzia Spinaci; Gloria Magi; Pietro E Varaldo; Bruna Facinelli
Persistence of erythromycin-resistant group a streptococci in cultured respiratory cells.
The Pediatric infectious disease journal 2006;25(10):880-3.
2006: Carla Vignaroli; Francesca Biavasco; Pietro E Varaldo
Interactions between glycopeptides and beta-lactams against isogenic pairs of teicoplanin-susceptible and -resistant strains of Staphylococcus haemolyticus.
Antimicrobial agents and chemotherapy 2006;50(7):2577-82.
2006: Orietta Massidda; Marina Mingoia; Domenica Fadda; Michael B Whalen; Maria Pia Montanari; Pietro E Varaldo
Analysis of the beta-lactamase plasmid of borderline methicillin-susceptible Staphylococcus aureus: focus on bla complex genes and cadmium resistance determinants cadD and cadX.
Plasmid 2006;55(2):114-27.
2005: Ileana Cochetti; Manuela Vecchi; Marina Mingoia; Emily Tili; Maria R Catania; aldo manzin; Pietro E Varaldo; Maria Pia Montanari
Molecular characterization of pneumococci with efflux-mediated erythromycin resistance and identification of a novel mef gene subclass, mef(I).
Antimicrobial agents and chemotherapy 2005;49(12):4999-5006.
2005: Maria Pia Montanari; Laura Piccoli; Marina Mingoia; Federico Marchetti; Pietro E Varaldo
Synergistic potential of ceftazidime plus amikacin or levofloxacin against Pseudomonas aeruginosa as determined using a checkerboard and a disk diffusion technique.
Diagnostic microbiology and infectious disease 2005;53(2):157-60.
2005: Maria Pia Montanari; L Ferrante; Emily Tili; Ileana Cochetti; V Rossi; Pietro E Varaldo
Interpretive criteria for disk diffusion susceptibility testing of ulifloxacin, the active metabolite of prulifloxacin.
Journal of chemotherapy (Florence, Italy) 2005;17(2):138-42.
2005: Eleonora Giovanetti; Andrea Brenciani; Manuela Vecchi; aldo manzin; Pietro E Varaldo
Prophage association of mef(A) elements encoding efflux-mediated erythromycin resistance in Streptococcus pyogenes.
The Journal of antimicrobial chemotherapy 2005;55(4):445-51.
2004: Andrea Brenciani; Kayode K Ojo; Alessia Monachetti; Stefano Menzo; Marilyn C Roberts; Pietro E Varaldo; Eleonora Giovanetti
Distribution and molecular analysis of mef(A)-containing elements in tetracycline-susceptible and -resistant Streptococcus pyogenes clinical isolates with efflux-mediated erythromycin resistance.
The Journal of antimicrobial chemotherapy 2004;54(6):991-8.
2004: Roberto Burioni; Nicasio Mancini; Silvia Carletti; Mario Perotti; Antonella Grieco; Filippo Canducci; Pietro E Varaldo; Massimo Clementi
Cross-reactive pseudovirus-neutralizing anti-envelope antibodies coexist with antibodies devoid of such activity in persistent hepatitis C virus infection.
Virology 2004;327(2):242-8.
2004: Cinzia Spinaci; Gloria Magi; Claudia Zampaloni; Luca Vitali; Claudia Paoletti; Maria R Catania; Manuela Prenna; Luigi Ferrante; Sandro Ripa; Pietro E Varaldo; Bruna Facinelli
Genetic diversity of cell-invasive erythromycin-resistant and -susceptible group A streptococci determined by analysis of the RD2 region of the prtF1 gene.
Journal of clinical microbiology 2004;42(2):639-44.
2004: Maria Pia Montanari; Emily Tili; Ileana Cochetti; Marina Mingoia; aldo manzin; Pietro E Varaldo
Molecular characterization of clinical Streptococcus pneumoniae isolates with reduced susceptibility to fluoroquinolones emerging in Italy.
Microbial drug resistance (Larchmont, N.Y.) 2004;10(3):209-17.
2003: Gessica Foglia; Maria Del Grosso; Carla Vignaroli; Patrizia Bagnarelli; Pietro E Varaldo; Annalisa Pantosti; Francesca Biavasco
Molecular analysis of Tn1546-like elements mediating high-level vancomycin resistance in Enterococcus gallinarum.
The Journal of antimicrobial chemotherapy 2003;52(5):772-5.
2003: Eleonora Giovanetti; Andrea Brenciani; Remo Lupidi; Marilyn C Roberts; Pietro E Varaldo
Presence of the tet(O) gene in erythromycin- and tetracycline-resistant strains of Streptococcus pyogenes and linkage with either the mef(A) or the erm(A) gene.
Antimicrobial agents and chemotherapy 2003;47(9):2844-9.
2003: Maria Pia Montanari; Ileana Cochetti; Marina Mingoia; Pietro E Varaldo
Phenotypic and molecular characterization of tetracycline- and erythromycin-resistant strains of Streptococcus pneumoniae.
Antimicrobial agents and chemotherapy 2003;47(7):2236-41.
2003: Gloria Magi; Roberta Capretti; Claudia Paoletti; Marco Pietrella; Luigi Ferrante; Francesca Biavasco; Pietro E Varaldo; Bruna Facinelli
Presence of a vanA-carrying pheromone response plasmid (pBRG1) in a clinical isolate of Enterococcus faecium.
Antimicrobial agents and chemotherapy 2003;47(5):1571-6.
2003: Nicasio Mancini; Filippo Canducci; Silvia Carletti; E Berardinelli; G Serafini; Antonella Grieco; Mario Perotti; G Malcangi; Maria Giovanna Danieli; Pietro E Varaldo; Massimo Clementi; Roberto Burioni
Heterogeneity of the humoral anti-HCV/E2 response in persistently infected patients as demonstrated by divergent patterns of inhibition of the binding of anti-HCV/E2 human monoclonal antibodies.
Journal of biological regulators and homeostatic agents 2003;17(2):183-7.
2003: Roberto Burioni; Nicasio Mancini; Filippo Canducci; Silvia Carletti; Antonella Grieco; Mario Perotti; G Serafini; E Berardinelli; S Bighi; Pietro E Varaldo; Massimo Clementi
Humoral immune response against hepatitis C virus.
Journal of biological regulators and homeostatic agents 2003;17(2):125-7.
2003: Maria Pia Montanari; Marina Mingoia; Ileana Cochetti; Pietro E Varaldo
Phenotypes and genotypes of erythromycin-resistant pneumococci in Italy.
Journal of clinical microbiology 2003;41(1):428-31.
2002: Eleonora Giovanetti; Andrea Brenciani; Roberto Burioni; Pietro E Varaldo
A novel efflux system in inducibly erythromycin-resistant strains of Streptococcus pyogenes.
Antimicrobial agents and chemotherapy 2002;46(12):3750-5.
2002: Roberto Burioni; Yoshiharu Matsuura; Nicasio Mancini; Hideki Tani; Tatsuo Miyamura; Pietro E Varaldo; Massimo Clementi
Diverging effects of human recombinant anti-hepatitis C virus (HCV) antibody fragments derived from a single patient on the infectivity of a vesicular stomatitis virus/HCV pseudotype.
Journal of virology 2002;76(22):11775-9.
2002: Eleonora Giovanetti; Gloria Magi; Andrea Brenciani; Cinzia Spinaci; Remo Lupidi; Bruna Facinelli; Pietro E Varaldo
Conjugative transfer of the erm(A) gene from erythromycin-resistant Streptococcus pyogenes to macrolide-susceptible S. pyogenes, Enterococcus faecalis and Listeria innocua.
The Journal of antimicrobial chemotherapy 2002;50(2):249-52.
2002: Pietro E Varaldo
Antimicrobial resistance and susceptibility testing: an evergreen topic.
The Journal of antimicrobial chemotherapy 2002;50(1):1-4.
2001: Maria Pia Montanari; Marina Mingoia; Pietro E Varaldo
In vitro antibacterial activities of AF 3013, the active metabolite of prulifloxacin, against nosocomial and community Italian isolates.
Antimicrobial agents and chemotherapy 2001;45(12):3616-22.
2001: Stefano Menzo; Alessia Monachetti; C Trozzi; A Ciavattini; Guido Carloni; Pietro E Varaldo; Massimo Clementi
Identification of six putative novel human papillomaviruses (HPV) and characterization of candidate HPV type 87.
Journal of virology 2001;75(23):11913-9.
2001: Francesca Bugli; Nicasio Mancini; C Y Kang; Cristiana Di Campli; Antonella Grieco; aldo manzin; A Gabrielli; A Gasbarrini; Giovanni Fadda; Pietro E Varaldo; Massimo Clementi; Roberto Burioni
Mapping B-cell epitopes of hepatitis C virus E2 glycoprotein using human monoclonal antibodies from phage display libraries.
Journal of virology 2001;75(20):9986-90.
2001: Roberto Burioni; Francesca Bugli; Nicasio Mancini; D Rosa; Cristiana Di Campli; G Moroncini; aldo manzin; Sergio Abrignani; Pietro E Varaldo; Massimo Clementi; Giovanni Fadda
Nonneutralizing human antibody fragments against hepatitis C virus E2 glycoprotein modulate neutralization of binding activity of human recombinant Fabs.
Virology 2001;288(1):29-35.
2001: Francesca Biavasco; C Paladini; Carla Vignaroli; Gessica Foglia; E Manso; Pietro E Varaldo
Recovery from a single blood culture of two enterococcus gallinarum isolates carrying both vanC-1 and vanA cluster genes and differing in glycopeptide susceptibility.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology 2001;20(5):309-14.
2001: Maria Pia Montanari; Marina Mingoia; Eleonora Giovanetti; Pietro E Varaldo
Differentiation of resistance phenotypes among erythromycin-resistant Pneumococci.
Journal of clinical microbiology 2001;39(4):1311-5.
2001: Sandro Ripa; Claudia Zampaloni; Luca Vitali; Eleonora Giovanetti; Maria Pia Montanari; Manuela Prenna; Pietro E Varaldo
SmaI macrorestriction analysis of Italian isolates of erythromycin-resistant Streptococcus pyogenes and correlations with macrolide-resistance phenotypes.
Microbial drug resistance (Larchmont, N.Y.) 2001;7(1):65-71.
2000: Eleonora Giovanetti; Maria Pia Montanari; F Marchetti; Pietro E Varaldo
In vitro activity of ketolides telithromycin and HMR 3004 against italian isolates of Streptococcus pyogenes and Streptococcus pneumoniae with different erythromycin susceptibility.
The Journal of antimicrobial chemotherapy 2000;46(6):905-8.
2000: Francesca Biavasco; Carla Vignaroli; R Lazzarini; Pietro E Varaldo
Glycopeptide susceptibility profiles of Staphylococcus haemolyticus bloodstream isolates.
Antimicrobial agents and chemotherapy 2000;44(11):3122-6.
2000: Nicola Petrosillo; Giuseppe Ippolito; L Solforosi; Pietro E Varaldo; Massimo Clementi; aldo manzin
Molecular epidemiology of an outbreak of fulminant hepatitis B.
Journal of clinical microbiology 2000;38(8):2975-81.
2000: Stefano Menzo; Stefano Rusconi; Alessia Monachetti; MC Colombo; Michela Violin; Patrizia Bagnarelli; Pietro E Varaldo; Mauro Moroni; Massimo Galli; Claudia Balotta; Massimo Clementi
Quantitative evaluation of the recombinant HIV-1 phenotype to protease inhibitors by a single-step strategy.
AIDS (London, England) 2000;14(9):1101-10.
2000: Francesca Biavasco; Carla Vignaroli; Pietro E Varaldo
Glycopeptide resistance in coagulase-negative staphylococci.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology 2000;19(6):403-17.
1999: Maria Pia Montanari; Marina Mingoia; F Marchetti; Pietro E Varaldo
In vitro activity of levofloxacin against gram-positive bacteria.
Chemotherapy 1999;45(6):411-7.
1999: Pietro E Varaldo; Eugenio A Debbia; Giuseppe Nicoletti; D Pavesio; Sandro Ripa; Gian Carlo Schito; Gianna Tempera
Nationwide survey in Italy of treatment of Streptococcus pyogenes pharyngitis in children: influence of macrolide resistance on clinical and microbiological outcomes. Artemis-Italy Study Group.
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 1999;29(4):869-73.
1999: Eleonora Giovanetti; Maria Pia Montanari; Marina Mingoia; Pietro E Varaldo
Phenotypes and genotypes of erythromycin-resistant Streptococcus pyogenes strains in Italy and heterogeneity of inducibly resistant strains.
Antimicrobial agents and chemotherapy 1999;43(8):1935-40.
1998: Manuela Prenna; Maria Pia Montanari; Marina Mingoia; Francesca Biavasco; Sandro Ripa; Pietro E Varaldo
Antistaphylococcal and antistreptococcal killing kinetics of ciprofloxacin, ofloxacin, sparfloxacin, and trovafloxacin.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology 1998;17(11):816-9.
1998: Roberto Burioni; P Plaisant; Francesca Bugli; L Solforosi; V Delli Carri; Pietro E Varaldo; Giovanni Fadda
A new subtraction technique for molecular cloning of rare antiviral antibody specificities from phage display libraries.
Research in virology 1998;149(5):327-30.
1998: Roberto Burioni; P Plaisant; aldo manzin; D Rosa; V Delli Carri; Francesca Bugli; L Solforosi; Sergio Abrignani; Pietro E Varaldo; Giovanni Fadda; Massimo Clementi
Dissection of human humoral immune response against hepatitis C virus E2 glycoprotein by repertoire cloning and generation of recombinant Fab fragments.
Hepatology (Baltimore, Md.) 1998;28(3):810-4.
1998: Maria Pia Montanari; Manuela Prenna; Marina Mingoia; Sandro Ripa; Pietro E Varaldo
In vitro antibacterial activity of trovafloxacin and five other fluoroquinolones.
Chemotherapy 1998;44(2):85-93.
1998: Bruna Facinelli; Eleonora Giovanetti; Gloria Magi; Francesca Biavasco; Pietro E Varaldo
Lectin reactivity and virulence among strains of Listeria monocytogenes determined in vitro using the enterocyte-like cell line Caco-2.
Microbiology (Reading, England) 1998;144 ( Pt 1)():109-18.
1997: Pietro E Varaldo; Francesca Biavasco
Coagulase-negative Staphylococcus species as unusual causes of infection.
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 1997;25(6):1491-3.
1997: Bruna Facinelli; Gloria Magi; Manuela Prenna; Sandro Ripa; Pietro E Varaldo
In vitro extracellular and intracellular activity of two newer and two earlier fluoroquinolones against Listeria monocytogenes.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology 1997;16(11):827-33.
1997: Francesca Biavasco; Carla Vignaroli; Remo Lupidi; E Manso; Bruna Facinelli; Pietro E Varaldo
In vitro antibacterial activity of LY333328, a new semisynthetic glycopeptide.
Antimicrobial agents and chemotherapy 1997;41(10):2165-72.
1997: Patrizia Bagnarelli; M Candela; A Valenza; aldo manzin; L Solforosi; F Mazzola; Luca Butini; Maria Montroni; A Gabrielli; Pietro E Varaldo; Massimo Clementi
Dynamic features of human immunodeficiency virus type 1 (HIV-1) viremia: kinetics of cell-free HIV-1 RNA after therapeutic plasma exchange.
The Journal of infectious diseases 1997;176(3):801-4.
1997: Roberto Burioni; P Plaisant; V Delli Carri; A Vannini; T Spanu; Massimo Clementi; Giovanni Fadda; Pietro E Varaldo
An improved phage display vector for antibody repertoire cloning by construction of combinatorial libraries.
Research in virology 1997;148(2):161-4.
1996: Orietta Massidda; Maria Pia Montanari; Marina Mingoia; Pietro E Varaldo
Borderline methicillin-susceptible Staphylococcus aureus strains have more in common than reduced susceptibility to penicillinase-resistant penicillins.
Antimicrobial agents and chemotherapy 1996;40(12):2769-74.
1996: Patrizia Bagnarelli; A Valenza; Stefano Menzo; Riccardo Sampaolesi; Pietro E Varaldo; Luca Butini; Maria Montroni; C F Perno; Stefano Aquaro; Dominique Mathez; Jacques Leibowitch; Claudia Balotta; Massimo Clementi
Dynamics and modulation of human immunodeficiency virus type 1 transcripts in vitro and in vivo.
Journal of virology 1996;70(11):7603-13.
1996: Maria Pia Montanari; Orietta Massidda; Marina Mingoia; Pietro E Varaldo
Borderline susceptibility to methicillin in Staphylococcus aureus: a new mechanism of resistance?
Microbial drug resistance (Larchmont, N.Y.) 1996;2(2):257-60.
1996: Eleonora Giovanetti; Francesca Biavasco; Armanda Pugnaloni; R Lupidi; Graziella Biagini; Pietro E Varaldo
An electron microscopic study of clinical and laboratory-derived strains of teicoplanin-resistant Staphylococcus haemolyticus.
Microbial drug resistance (Larchmont, N.Y.) 1996;2(2):239-43.
1996: Francesca Biavasco; A Miele; C Vignaroli; E Manso; R Lupidi; Pietro E Varaldo
Genotypic characterization of a nosocomial outbreak of VanA Enterococcus faecalis.
Microbial drug resistance (Larchmont, N.Y.) 1996;2(2):231-7.
1996: Francesca Biavasco; Eleonora Giovanetti; A Miele; C Vignaroli; Bruna Facinelli; Pietro E Varaldo
In vitro conjugative transfer of VanA vancomycin resistance between Enterococci and Listeriae of different species.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology 1996;15(1):50-9.
1996: Marilyn C Roberts; Bruna Facinelli; Eleonora Giovanetti; Pietro E Varaldo
Transferable erythromycin resistance in Listeria spp. isolated from food.
Applied and environmental microbiology 1996;62(1):269-70.
1995: Patrizia Bagnarelli; Stefano Menzo; A Valenza; S Paolucci; S Petroni; Giorgio Scalise; Riccardo Sampaolesi; aldo manzin; Pietro E Varaldo; Massimo Clementi
Quantitative molecular monitoring of human immunodeficiency virus type 1 activity during therapy with specific antiretroviral compounds.
Journal of clinical microbiology 1995;33(1):16-23.
1994: Bruna Facinelli; Eleonora Giovanetti; C Casolari; Pietro E Varaldo
Interactions with lectins and agglutination profiles of clinical, food, and environmental isolates of Listeria.
Journal of clinical microbiology 1994;32(12):2929-35.
1994: Orietta Massidda; Maria Pia Montanari; Marina Mingoia; Pietro E Varaldo
Cloning and expression of the penicillinase from a borderline methicillin-susceptible Staphylococcus aureus strain in Escherichia coli.
FEMS microbiology letters 1994;119(3):263-9.
1994: Patrizia Bagnarelli; A Valenza; Stefano Menzo; aldo manzin; Giorgio Scalise; Pietro E Varaldo; Massimo Clementi
Dynamics of molecular parameters of human immunodeficiency virus type 1 activity in vivo.
Journal of virology 1994;68(4):2495-502.
1993: G Satta; L D'Andrea; G Grazi; O Soro; Pietro E Varaldo
Micrococci demonstrate a phosphatase activity which is repressed by phosphates and which can be differentiated from that of staphylococci.
International journal of systematic bacteriology 1993;43(4):813-8.
1993: E Manso; G De Sio; Francesca Biavasco; Pietro E Varaldo; G Sambo; C Maffei
Vancomycin-resistant enterococci.
Lancet 1993;342(8871):616-7.
1993: Pietro E Varaldo; Maria Pia Montanari; Francesca Biavasco; E Manso; Sandro Ripa; F Santacroce
Survey of clinical isolates of Staphylococcus aureus for borderline susceptibility to antistaphylococcal penicillins.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology 1993;12(9):677-82.
1993: Bruna Facinelli; Marilyn C Roberts; Eleonora Giovanetti; C Casolari; U Fabio; Pietro E Varaldo
Genetic basis of tetracycline resistance in food-borne isolates of Listeria innocua.
Applied and environmental microbiology 1993;59(2):614-6.
1993: Massimo Clementi; Stefano Menzo; Patrizia Bagnarelli; aldo manzin; A Valenza; Pietro E Varaldo
Quantitative PCR and RT-PCR in virology.
PCR methods and applications 1993;2(3):191-6.
1993: Massimo Clementi; Patrizia Bagnarelli; Stefano Menzo; A Valenza; aldo manzin; Pietro E Varaldo
Clearance of HIV-1 viraemia after seroconversion.
Lancet 1993;341(8840):315-6.
1993: Pietro E Varaldo
The 'borderline methicillin-susceptible' Staphylococcus aureus.
The Journal of antimicrobial chemotherapy 1993;31(1):1-4.
1992: Patrizia Bagnarelli; Stefano Menzo; A Valenza; aldo manzin; M Giacca; F Ancarani; Giorgio Scalise; Pietro E Varaldo; Massimo Clementi
Molecular profile of human immunodeficiency virus type 1 infection in symptomless patients and in patients with AIDS.
Journal of virology 1992;66(12):7328-35.
1992: Bruna Facinelli; R Tarsi; Eleonora Giovanetti; Pietro E Varaldo; Marilyn C Roberts
Molecular characterization of a beta-lactamase-producing Haemophilus paraphrohaemolyticus strain.
The Journal of antimicrobial chemotherapy 1992;30(4):551-3.
1992: Stefano Menzo; Patrizia Bagnarelli; M Giacca; aldo manzin; Pietro E Varaldo; Massimo Clementi
Absolute quantitation of viremia in human immunodeficiency virus infection by competitive reverse transcription and polymerase chain reaction.
Journal of clinical microbiology 1992;30(7):1752-7.
1992: Orietta Massidda; Maria Pia Montanari; Pietro E Varaldo
Evidence for a methicillin-hydrolysing beta-lactamase in Staphylococcus aureus strains with borderline susceptibility to this drug.
FEMS microbiology letters 1992;71(3):223-7.
1992: Stefano Menzo; aldo manzin; Patrizia Bagnarelli; Pietro E Varaldo; G Grandi; G Giuliani; G Cazzato; M Giacca; Massimo Clementi
Lack of detectable human T-cell lymphotropic virus type I sequences in samples from multiple sclerosis patients.
Journal of medical virology 1992;36(3):155-61.
1992: Francesca Biavasco; R Lupidi; Pietro E Varaldo
In vitro activities of three semisynthetic amide derivatives of teicoplanin, MDL 62208, MDL 62211, and MDL 62873.
Antimicrobial agents and chemotherapy 1992;36(2):331-8.
1991: Bruna Facinelli; Eleonora Giovanetti; Pietro E Varaldo; P Casolari; U Fabio
Antibiotic resistance in foodborne Listeria.
Lancet 1991;338(8777):1272.
1991: Bruna Facinelli; Maria Pia Montanari; Pietro E Varaldo
Haemophilus parainfluenzae causing sexually transmitted urethritis. Report of a case and evidence for a beta-lactamase plasmid mobilizable to Escherichia coli by an Inc-W plasmid.
Sexually transmitted diseases 1991;18(3):166-9.
1991: Patrizia Bagnarelli; Stefano Menzo; aldo manzin; M Giacca; Pietro E Varaldo; Massimo Clementi
Detection of human immunodeficiency virus type 1 genomic RNA in plasma samples by reverse-transcription polymerase chain reaction.
Journal of medical virology 1991;34(2):89-95.
1991: R Lupidi; Marina Cinco; D Balanzin; E Delprete; Pietro E Varaldo
Serological follow-up of patients involved in a localized outbreak of leptospirosis.
Journal of clinical microbiology 1991;29(4):805-9.
1991: Patrizia Bagnarelli; Stefano Menzo; aldo manzin; Pietro E Varaldo; Maria Montroni; M Giacca; Massimo Clementi
Detection of human immunodeficiency virus type 1 transcripts in peripheral blood lymphocytes by the polymerase chain reaction.
Journal of virological methods 1991;32(1):31-9.
1991: Bruna Facinelli; Pietro E Varaldo
Activity of roxithromycin against respiratory pathogens.
Journal of chemotherapy (Florence, Italy) 1991;3 Suppl 1():33-5.
1991: Francesca Biavasco; Eleonora Giovanetti; Pietro E Varaldo
Selection of resistance to glycopeptide antibiotics in staphylococci.
Journal of chemotherapy (Florence, Italy) 1991;3 Suppl 1():166-8.
1991: Pietro E Varaldo; Francesca Biavasco; Maria Pia Montanari; Bruna Facinelli
Gram-positive infections: epidemiological aspects and trends of antibiotic resistance.
Journal of chemotherapy (Florence, Italy) 1991;3 Suppl 1():158-62.
1991: Francesca Biavasco; Eleonora Giovanetti; Maria Pia Montanari; R Lupidi; Pietro E Varaldo
Development of in-vitro resistance to glycopeptide antibiotics: assessment in staphylococci of different species.
The Journal of antimicrobial chemotherapy 1991;27(1):71-9.
1991: Francesca Biavasco; E Manso; Pietro E Varaldo
In vitro activities of ramoplanin and four glycopeptide antibiotics against clinical isolates of Clostridium difficile.
Antimicrobial agents and chemotherapy 1991;35(1):195-7.
1990: O Soro; G Grazi; Pietro E Varaldo; G Satta
Phosphatase activity of staphylococci is constitutive in some species and repressed by phosphates in others.
Journal of clinical microbiology 1990;28(12):2707-10.
1990: R Muzzarelli; R Tarsi; O Filippini; Eleonora Giovanetti; Graziella Biagini; Pietro E Varaldo
Antimicrobial properties of N-carboxybutyl chitosan.
Antimicrobial agents and chemotherapy 1990;34(10):2019-23.
1990: Pietro E Varaldo; Giuseppe Nicoletti; G C Schito; Alessandro Maida; Bruna Facinelli; Stefania Stefani; G Gianrossi; Elena Muresu
Circulation in Italy of beta-lactamase-producing strains within the major groups of bacterial pathogens.
European journal of epidemiology 1990;6(3):287-92.
1990: C Casolari; Bruna Facinelli; U Fabio; J Rocourt; Pietro E Varaldo
Restriction endonuclease analysis of chromosomal DNA from Listeria monocytogenes strains.
European journal of epidemiology 1990;6(3):319-22.
1990: Maria Pia Montanari; E Tonin; Francesca Biavasco; Pietro E Varaldo
Further characterization of borderline methicillin-resistant Staphylococcus aureus and analysis of penicillin-binding proteins.
Antimicrobial agents and chemotherapy 1990;34(5):911-3.
1990: C Maffei; E Manso; Francesca Biavasco; Pietro E Varaldo; Maria Luisa Moro
Typing and nosocomial candidiasis.
Journal of clinical microbiology 1990;28(5):1086-7.
1990: Pietro E Varaldo; Bruna Facinelli; E Manso
Roxithromycin versus erythromycin: cross-resistance or cross-susceptibility?
The Journal of antimicrobial chemotherapy 1990;25(4):705-6.
1990: Giovanni V Coppa; Orazio Gabrielli; PL Giorgi; Carlo Catassi; Maria Pia Montanari; Pietro E Varaldo; B L Nichols
Preliminary study of breastfeeding and bacterial adhesion to uroepithelial cells.
Lancet 1990;335(8689):569-71.
1990: Bruna Facinelli; Francesca Biavasco; Pietro E Varaldo
Use of DNA fingerprinting in an epidemiologic study of outbreak-specific and non-specific strains of group C Neisseria meningitidis.
European journal of epidemiology 1990;6(1):80-3.
1989: aldo manzin; P Pauri; Patrizia Bagnarelli; F Brecciaroli; Pietro E Varaldo; S Colloca; Massimo Clementi
Detection of hepatitis B virus DNA in serum using synthetic non-radioactive oligonucleotides.
Journal of clinical pathology 1989;42(11):1206-10.
1989: Bruna Facinelli; Pietro E Varaldo; M Toni; C Casolari; U Fabio
Ignorance about listeria.
BMJ (Clinical research ed.) 1989;299(6701):738.
1989: E Manso; P Strusi; M Montillo; Pietro Leoni; Pietro E Varaldo
Teicoplanin treatment of Corynebacterium JK infection and colonization in an immunocompromised patient before and after marrow transplantation.
Journal of chemotherapy (Florence, Italy) 1989;1(4 Suppl):714-5.
1989: Francesca Biavasco; Maria Pia Montanari; Bruna Facinelli; Pietro E Varaldo
Evaluation of spontaneous resistance to glycopeptide antibiotics in staphylococcal populations.
Journal of chemotherapy (Florence, Italy) 1989;1(4 Suppl):389-90.
1989: Pietro E Varaldo; Alessandro Maida; Giuseppe Nicoletti; G C Schito
Epidemiology of beta-lactamase production and possibilities for the use of augmentin.
Journal of chemotherapy (Florence, Italy) 1989;1(4 Suppl):348-9.
1989: Maria Pia Montanari; Pietro E Varaldo
Effects of beta-lactamase inhibitors on Staphylococcus aureus susceptibility to penicillin G and penicillinase-resistant penicillins.
Journal of chemotherapy (Florence, Italy) 1989;1(4 Suppl):344-5.
1989: Bruna Facinelli; Maria Pia Montanari; I Ratsch; A Brescia; N Oggiano; PL Giorgi; Pietro E Varaldo
Antibiotic resistance, beta-lactamase activity, and plasmid content in strains of Haemophilus and Branhamella isolated from children.
Journal of chemotherapy (Florence, Italy) 1989;1(4 Suppl):301.
1989: G Cisani; Pietro E Varaldo; Raffaello Pompei; S Valisena; G Satta
Cell fusion induced by herpes simplex is inhibited by hen egg-white lysozyme.
Microbios 1989;59(239):73-83.
1988: Bruna Facinelli; Pietro E Varaldo; C Casolari; U Fabio
Cross-infection with Listeria monocytogenes confirmed by DNA fingerprinting.
Lancet 1988;2(8622):1247-8.
1988: Pietro E Varaldo; Francesca Biavasco; S Mannelli; R Pompei; A Proietti
Distribution and antibiotic susceptibility of extraintestinal clinical isolates of Klebsiella, Enterobacter and Serratia species.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology 1988;7(4):495-500.
1987: C Maffei; A Marracino; F Di Stanislao; P Pauri; Massimo Clementi; Pietro E Varaldo
Psittacosis in a highly endemic area in Italy.
Epidemiology and infection 1987;99(2):413-9.
1987: Bruna Facinelli; Pietro E Varaldo
Plasmid-mediated sulfonamide resistance in Neisseria meningitidis.
Antimicrobial agents and chemotherapy 1987;31(10):1642-3.
1987: Pietro E Varaldo; Francesca Biavasco; Maria Pia Montanari
Heteroresistant and nonheteroresistant methicillin-resistant Staphylococcus aureus.
Journal of clinical microbiology 1987;25(2):463-4.
1985: C Geraci; Stefania Stefani; Alfredo Focà; giovanna stassi; Pietro E Varaldo; P Cipriani; A Giordano
Susceptibility of some Staphylococcus species to aminoglycosides.
Chemioterapia : international journal of the Mediterranean Society of Chemotherapy 1985;4(6):436-8.
1984: Pietro E Varaldo; P Cipriani; A Focá; C Geraci; A Giordano; M A Madeddu; A Orsi; Raffaello Pompei; Manuela Prenna; A Repetto
Identification, clinical distribution, and susceptibility to methicillin and 18 additional antibiotics of clinical Staphylococcus isolates: nationwide investigation in Italy.
Journal of clinical microbiology 1984;19(6):838-43.
1982: G Cisani; Pietro E Varaldo; G Grazi; O Soro
High-level potentiation of lysostaphin anti-staphylococcal activity by lysozyme.
Antimicrobial agents and chemotherapy 1982;21(4):531-5.
1981: Pietro E Varaldo; O Soro; G Grazi; F Biavasco
Clinical distribution and antibiotic sensitivities of staphylococcal strains isolated over an eight-month period.
Journal of clinical pathology 1981;34(4):443-7.
1980: Pietro E Varaldo; G Grazi; O Soro; G Cisani; G Satta
Simplified lyogroup system, a new method for routine identification of staphylococci: description and comparison with three other methods.
Journal of clinical microbiology 1980;12(1):63-8.