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Items: 1 to 50 of 190

1.

Characterization of a Multiresistance Plasmid Carrying the optrA and cfr Resistance Genes From an Enterococcus faecium Clinical Isolate.

Morroni G, Brenciani A, Antonelli A, D'Andrea MM, Di Pilato V, Fioriti S, Mingoia M, Vignaroli C, Cirioni O, Biavasco F, Varaldo PE, Rossolini GM, Giovanetti E.

Front Microbiol. 2018 Sep 11;9:2189. doi: 10.3389/fmicb.2018.02189. eCollection 2018.

2.

Characterization of poxtA, a novel phenicol-oxazolidinone-tetracycline resistance gene from an MRSA of clinical origin.

Antonelli A, D'Andrea MM, Brenciani A, Galeotti CL, Morroni G, Pollini S, Varaldo PE, Rossolini GM.

J Antimicrob Chemother. 2018 Jul 1;73(7):1763-1769. doi: 10.1093/jac/dky088.

PMID:
29635422
3.

Spread of colistin resistance gene mcr-1 in Italy: characterization of the mcr-1.2 allelic variant in a colistin-resistant blood isolate of Escherichia coli.

Simoni S, Morroni G, Brenciani A, Vincenzi C, Cirioni O, Castelletti S, Varaldo PE, Giovanetti E, Mingoia M.

Diagn Microbiol Infect Dis. 2018 May;91(1):66-68. doi: 10.1016/j.diagmicrobio.2017.12.015. Epub 2017 Dec 24.

PMID:
29370953
4.

Molecular Characterization of Italian Isolates of Fluoroquinolone-Resistant Streptococcus agalactiae and Relationships with Chloramphenicol Resistance.

Simoni S, Vincenzi C, Brenciani A, Morroni G, Bagnarelli P, Giovanetti E, Varaldo PE, Mingoia M.

Microb Drug Resist. 2018 Apr;24(3):225-231. doi: 10.1089/mdr.2017.0139. Epub 2017 Aug 7.

PMID:
28783417
5.

Biofilm formation and antibiotic resistance in Klebsiella pneumoniae urinary strains.

Vuotto C, Longo F, Pascolini C, Donelli G, Balice MP, Libori MF, Tiracchia V, Salvia A, Varaldo PE.

J Appl Microbiol. 2017 Oct;123(4):1003-1018. doi: 10.1111/jam.13533. Epub 2017 Aug 25.

PMID:
28731269
6.

pHTβ-promoted mobilization of non-conjugative resistance plasmids from Enterococcus faecium to Enterococcus faecalis.

Di Sante L, Morroni G, Brenciani A, Vignaroli C, Antonelli A, D'Andrea MM, Di Cesare A, Giovanetti E, Varaldo PE, Rossolini GM, Biavasco F.

J Antimicrob Chemother. 2017 Sep 1;72(9):2447-2453. doi: 10.1093/jac/dkx197.

PMID:
28645197
7.

Epidemiology of Staphylococcus aureus in Italy: First nationwide survey, 2012.

Campanile F, Bongiorno D, Perez M, Mongelli G, Sessa L, Benvenuto S, Gona F; AMCLI – S. aureus Survey Participants, Varaldo PE, Stefani S.

J Glob Antimicrob Resist. 2015 Dec;3(4):247-254. doi: 10.1016/j.jgar.2015.06.006. Epub 2015 Jul 29.

PMID:
27842868
8.

A new mosaic integrative and conjugative element from Streptococcus agalactiae carrying resistance genes for chloramphenicol (catQ) and macrolides [mef(I) and erm(TR)].

Morici E, Simoni S, Brenciani A, Giovanetti E, Varaldo PE, Mingoia M.

J Antimicrob Chemother. 2017 Jan;72(1):64-67. Epub 2016 Sep 12.

PMID:
27621174
9.

Stability of the cargo regions of the cfr-carrying, multiresistance plasmid pSP01 from Staphylococcus epidermidis.

Brenciani A, Morroni G, Mingoia M, Varaldo PE, Giovanetti E.

Int J Med Microbiol. 2016 Dec;306(8):717-721. doi: 10.1016/j.ijmm.2016.08.002. Epub 2016 Aug 17.

PMID:
27554790
10.

A clone of linezolid-resistant Staphylococcus epidermidis bearing the G2576T mutation is endemic in an Italian hospital.

Morroni G, Brenciani A, Vincenzi C, Barocci S, Tili E, Manso E, Mingoia M, Menzo S, Varaldo PE, Giovanetti E.

J Hosp Infect. 2016 Oct;94(2):203-6. doi: 10.1016/j.jhin.2016.07.012. Epub 2016 Jul 25. No abstract available.

PMID:
27546457
11.

Detection in Italy of two clinical Enterococcus faecium isolates carrying both the oxazolidinone and phenicol resistance gene optrA and a silent multiresistance gene cfr.

Brenciani A, Morroni G, Vincenzi C, Manso E, Mingoia M, Giovanetti E, Varaldo PE.

J Antimicrob Chemother. 2016 Apr;71(4):1118-9. doi: 10.1093/jac/dkv438. Epub 2015 Dec 24. No abstract available.

PMID:
26702919
12.

Macrolide resistance gene erm(TR) and erm(TR)-carrying genetic elements in Streptococcus agalactiae: characterization of ICESagTR7, a new composite element containing IMESp2907.

Mingoia M, Morici E, Marini E, Brenciani A, Giovanetti E, Varaldo PE.

J Antimicrob Chemother. 2016 Mar;71(3):593-600. doi: 10.1093/jac/dkv408. Epub 2015 Dec 17.

PMID:
26679245
13.

Recurrent skin infection associated with nasal carriage of Panton-Valentine leukocidin-positive methicillin-susceptible Staphylococcus aureus closely related to the EMRSA-15 clone.

Vignaroli C, Di Sante L, Stano P, Varaldo PE, Camporese A.

Future Microbiol. 2016;11(1):17-21. doi: 10.2217/fmb.15.125. Epub 2015 Dec 17. Erratum in: Future Microbiol. 2016;11(2):330.

PMID:
26674061
14.

Characterization of novel conjugative multiresistance plasmids carrying cfr from linezolid-resistant Staphylococcus epidermidis clinical isolates from Italy.

Brenciani A, Morroni G, Pollini S, Tiberi E, Mingoia M, Varaldo PE, Rossolini GM, Giovanetti E.

J Antimicrob Chemother. 2016 Feb;71(2):307-13. doi: 10.1093/jac/dkv341. Epub 2015 Oct 15.

PMID:
26472766
15.

Transduction of the Streptococcus pyogenes bacteriophage Φm46.1, carrying resistance genes mef(A) and tet(O), to other Streptococcus species.

Giovanetti E, Brenciani A, Morroni G, Tiberi E, Pasquaroli S, Mingoia M, Varaldo PE.

Front Microbiol. 2015 Jan 8;5:746. doi: 10.3389/fmicb.2014.00746. eCollection 2014.

16.

Genetic basis of the association of resistance genes mef(I) (macrolides) and catQ (chloramphenicol) in streptococci.

Mingoia M, Morici E, Brenciani A, Giovanetti E, Varaldo PE.

Front Microbiol. 2015 Jan 6;5:747. doi: 10.3389/fmicb.2014.00747. eCollection 2014. Review.

17.

Antibiotic Resistance Related to Biofilm Formation in Klebsiella pneumoniae.

Vuotto C, Longo F, Balice MP, Donelli G, Varaldo PE.

Pathogens. 2014 Sep 5;3(3):743-58. doi: 10.3390/pathogens3030743. Review.

18.

Tn5253 family integrative and conjugative elements carrying mef(I) and catQ determinants in Streptococcus pneumoniae and Streptococcus pyogenes.

Mingoia M, Morici E, Morroni G, Giovanetti E, Del Grosso M, Pantosti A, Varaldo PE.

Antimicrob Agents Chemother. 2014 Oct;58(10):5886-93. doi: 10.1128/AAC.03638-14. Epub 2014 Jul 28.

19.

Composite SCCmec element in single-locus variant (ST217) of epidemic MRSA-15 clone.

Vignaroli C, Mancini A, Varaldo PE.

Emerg Infect Dis. 2014 May;20(5):905-7. doi: 10.3201/eid2005.130934. No abstract available.

20.

ICESp1116, the genetic element responsible for erm(B)-mediated, inducible erythromycin resistance in Streptococcus pyogenes, belongs to the TnGBS family of integrative and conjugative elements.

Brenciani A, Tiberi E, Morroni G, Mingoia M, Varaldo PE, Giovanetti E.

Antimicrob Agents Chemother. 2014;58(4):2479-81. doi: 10.1128/AAC.00048-14. Epub 2014 Jan 21. No abstract available.

21.

Genetic determinants and elements associated with antibiotic resistance in viridans group streptococci.

Brenciani A, Tiberi E, Tili E, Mingoia M, Palmieri C, Varaldo PE, Giovanetti E.

J Antimicrob Chemother. 2014 May;69(5):1197-204. doi: 10.1093/jac/dkt495. Epub 2013 Dec 15.

PMID:
24343896
22.

Pitfalls encountered while investigating genetic elements by PCR.

Palmieri C, Brenciani A, Mingoia M, Giovanetti E, Facinelli B, Varaldo PE.

Mob Genet Elements. 2013 May 1;3(3):e25255. Epub 2013 Jun 3.

23.

Characterization of Tn5801.Sag, a variant of Staphylococcus aureus Tn916 family transposon Tn5801 that is widespread in clinical isolates of Streptococcus agalactiae.

Mingoia M, Morici E, Tili E, Giovanetti E, Montanari MP, Varaldo PE.

Antimicrob Agents Chemother. 2013 Sep;57(9):4570-4. doi: 10.1128/AAC.00521-13. Epub 2013 Jul 1.

24.

Unconventional circularizable bacterial genetic structures carrying antibiotic resistance determinants.

Palmieri C, Mingoia M, Varaldo PE.

Antimicrob Agents Chemother. 2013 May;57(5):2440-1. doi: 10.1128/AAC.02548-12. No abstract available.

25.

ICESp1116, the genetic element responsible for erm(B)-mediated, inducible resistance to erythromycin in Streptococcus pyogenes.

Brenciani A, Tiberi E, Morici E, Oryasin E, Giovanetti E, Varaldo PE.

Antimicrob Agents Chemother. 2012 Dec;56(12):6425-9. doi: 10.1128/AAC.01494-12. Epub 2012 Oct 1.

26.

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.

Palmieri C, Mingoia M, Massidda O, Giovanetti E, Varaldo PE.

Antimicrob Agents Chemother. 2012 Nov;56(11):5994-7. doi: 10.1128/AAC.01487-12. Epub 2012 Aug 13.

27.

Characterization of a Streptococcus suis tet(O/W/32/O)-carrying element transferable to major streptococcal pathogens.

Palmieri C, Magi G, Mingoia M, Bagnarelli P, Ripa S, Varaldo PE, Facinelli B.

Antimicrob Agents Chemother. 2012 Sep;56(9):4697-702. doi: 10.1128/AAC.00629-12. Epub 2012 Jun 18.

28.

Streptococcus suis, an Emerging Drug-Resistant Animal and Human Pathogen.

Palmieri C, Varaldo PE, Facinelli B.

Front Microbiol. 2011 Nov 25;2:235. doi: 10.3389/fmicb.2011.00235. eCollection 2011.

29.

Human case of autochthonous West Nile virus lineage 2 infection in Italy, September 2011.

Bagnarelli P, Marinelli K, Trotta D, Monachetti A, Tavio M, Del Gobbo R, Capobianchi M, Menzo S, Nicoletti L, Magurano F, Varaldo P.

Euro Surveill. 2011 Oct 27;16(43). pii: 20002.

30.

ICESp2905, the erm(TR)-tet(O) element of Streptococcus pyogenes, is formed by two independent integrative and conjugative elements.

Giovanetti E, Brenciani A, Tiberi E, Bacciaglia A, Varaldo PE.

Antimicrob Agents Chemother. 2012 Jan;56(1):591-4. doi: 10.1128/AAC.05352-11. Epub 2011 Oct 10.

31.

Striking "seesaw effect" between daptomycin nonsusceptibility and beta-lactam susceptibility in Staphylococcus haemolyticus.

Vignaroli C, Rinaldi C, Varaldo PE.

Antimicrob Agents Chemother. 2011 May;55(5):2495-6; author reply 296-7. doi: 10.1128/AAC.00224-11. No abstract available.

32.

Two distinct genetic elements are responsible for erm(TR)-mediated erythromycin resistance in tetracycline-susceptible and tetracycline-resistant strains of Streptococcus pyogenes.

Brenciani A, Tiberi E, Bacciaglia A, Petrelli D, Varaldo PE, Giovanetti E.

Antimicrob Agents Chemother. 2011 May;55(5):2106-12. doi: 10.1128/AAC.01378-10. Epub 2011 Feb 22.

33.

Heterogeneity of Tn5253-like composite elements in clinical Streptococcus pneumoniae isolates.

Mingoia M, Tili E, Manso E, Varaldo PE, Montanari MP.

Antimicrob Agents Chemother. 2011 Apr;55(4):1453-9. doi: 10.1128/AAC.01087-10. Epub 2011 Jan 24.

34.

Different genetic elements carrying the tet(W) gene in two human clinical isolates of Streptococcus suis.

Palmieri C, Princivalli MS, Brenciani A, Varaldo PE, Facinelli B.

Antimicrob Agents Chemother. 2011 Feb;55(2):631-6. doi: 10.1128/AAC.00965-10. Epub 2010 Nov 29.

35.

Inhibitory activity by barley coffee components towards Streptococcus mutans biofilm.

Stauder M, Papetti A, Daglia M, Vezzulli L, Gazzani G, Varaldo PE, Pruzzo C.

Curr Microbiol. 2010 Nov;61(5):417-21. doi: 10.1007/s00284-010-9630-5. Epub 2010 Apr 2.

PMID:
20361189
36.

Phim46.1, the main Streptococcus pyogenes element carrying mef(A) and tet(O) genes.

Brenciani A, Bacciaglia A, Vignaroli C, Pugnaloni A, Varaldo PE, Giovanetti E.

Antimicrob Agents Chemother. 2010 Jan;54(1):221-9. doi: 10.1128/AAC.00499-09. Epub 2009 Oct 26.

37.

Streptococcus suis meningitis without history of animal contact, Italy.

Manzin A, Palmieri C, Serra C, Saddi B, Princivalli MS, Loi G, Angioni G, Tiddia F, Varaldo PE, Facinelli B.

Emerg Infect Dis. 2008 Dec;14(12):1946-8. doi: 10.3201/eid1412.080679. No abstract available.

38.

Genetic elements responsible for erythromycin resistance in streptococci.

Varaldo PE, Montanari MP, Giovanetti E.

Antimicrob Agents Chemother. 2009 Feb;53(2):343-53. doi: 10.1128/AAC.00781-08. Epub 2008 Nov 10. Review. No abstract available.

39.

Effects of fluoroquinolones on bacterial adhesion and on preformed biofilm of strains isolated from urinary double J stents.

Minardi D, Montanari MP, Tili E, Cochetti I, Mingoia M, Varaldo PE, Muzzonigro G.

J Chemother. 2008 Apr;20(2):195-201.

PMID:
18467245
40.

erm(B)-carrying elements in tetracycline-resistant pneumococci and correspondence between Tn1545 and Tn6003.

Cochetti I, Tili E, Mingoia M, Varaldo PE, Montanari MP.

Antimicrob Agents Chemother. 2008 Apr;52(4):1285-90. doi: 10.1128/AAC.01457-07. Epub 2008 Feb 19.

41.

Expressed and unexpressed tet(M) genes and the erm(B)-carrying Tn1116 transposon in Streptococcus pyogenes and Streptococcus pneumoniae.

Giovanetti E, Brenciani A, Bacciaglia A, Montanari MP, Varaldo PE.

Antimicrob Agents Chemother. 2007 Dec;51(12):4535; author reply 4535-6. No abstract available.

42.

PCR real time assays for the early detection of BKV-DNA in immunocompromised patients.

Marinelli K, Bagnarelli P, Gaffi G, Trappolini S, Leoni P, Paggi AM, Della Vittoria A, Scalise G, Varaldo PE, Menzo S.

New Microbiol. 2007 Jul;30(3):275-8.

43.

Composite structure of Streptococcus pneumoniae containing the erythromycin efflux resistance gene mefI and the chloramphenicol resistance gene catQ.

Mingoia M, Vecchi M, Cochetti I, Tili E, Vitali LA, Manzin A, Varaldo PE, Montanari MP.

Antimicrob Agents Chemother. 2007 Nov;51(11):3983-7. Epub 2007 Aug 20.

44.

SmaI typeability and tetracycline susceptibility and resistance in Streptococcus pyogenes isolates with efflux-mediated erythromycin resistance.

Bacciaglia A, Brenciani A, Varaldo PE, Giovanetti E.

Antimicrob Agents Chemother. 2007 Aug;51(8):3042-3. Epub 2007 Jun 11. No abstract available.

45.

New Tn916-related elements causing erm(B)-mediated erythromycin resistance in tetracycline-susceptible pneumococci.

Cochetti I, Tili E, Vecchi M, Manzin A, Mingoia M, Varaldo PE, Montanari MP.

J Antimicrob Chemother. 2007 Jul;60(1):127-31. Epub 2007 May 5.

PMID:
17483548
46.

Genetic elements carrying erm(B) in Streptococcus pyogenes and association with tet(M) tetracycline resistance gene.

Brenciani A, Bacciaglia A, Vecchi M, Vitali LA, Varaldo PE, Giovanetti E.

Antimicrob Agents Chemother. 2007 Apr;51(4):1209-16. Epub 2007 Jan 29.

47.

Clonal spread of macrolide- and tetracycline-resistant [erm(A) tet(O)] emm77 Streptococcus pyogenes isolates in Italy and Norway.

Palmieri C, Vecchi M, Littauer P, Sundsfjord A, Varaldo PE, Facinelli B.

Antimicrob Agents Chemother. 2006 Dec;50(12):4229-30. Epub 2006 Oct 16. No abstract available.

48.

Persistence of erythromycin-resistant group a streptococci in cultured respiratory cells.

Spinaci C, Magi G, Varaldo PE, Facinelli B.

Pediatr Infect Dis J. 2006 Oct;25(10):880-3.

PMID:
17006280
49.
50.

Molecular characterization of pneumococci with efflux-mediated erythromycin resistance and identification of a novel mef gene subclass, mef(I).

Cochetti I, Vecchi M, Mingoia M, Tili E, Catania MR, Manzin A, Varaldo PE, Montanari MP.

Antimicrob Agents Chemother. 2005 Dec;49(12):4999-5006.

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