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Human carriage of cefotaxime-resistant Escherichia coli in North-East India: an analysis of STs and associated resistance mechanisms.

Paul D, Babenko D, Toleman MA.

J Antimicrob Chemother. 2019 Oct 17. pii: dkz416. doi: 10.1093/jac/dkz416. [Epub ahead of print]


Dissemination of genetically diverse NDM-1, -5, -7 producing-Gram-negative pathogens isolated from pediatric patients in Pakistan.

Qamar MU, Walsh TR, Toleman MA, Tyrrell JM, Saleem S, Aboklaish A, Jahan S.

Future Microbiol. 2019 May;14:691-704. doi: 10.2217/fmb-2019-0012. Epub 2019 May 31.


OXA-1 β-lactamase and non-susceptibility to penicillin/β-lactamase inhibitor combinations among ESBL-producing Escherichia coli.

Livermore DM, Day M, Cleary P, Hopkins KL, Toleman MA, Wareham DW, Wiuff C, Doumith M, Woodford N.

J Antimicrob Chemother. 2019 Feb 1;74(2):326-333. doi: 10.1093/jac/dky453.


First identification of clinical isolate of a Novel "NDM-4" producing Escherichia coli ST405 from urine sample in Pakistan.

Qamar MU, Walsh TR, Toleman MA, Saleem S, Jahan S.

Braz J Microbiol. 2018 Oct - Dec;49(4):949-950. doi: 10.1016/j.bjm.2018.02.009. Epub 2018 Apr 12. No abstract available.


Analysis of Escherichia coli STs and resistance mechanisms in sewage from Islamabad, Pakistan indicates a difference in E. coli carriage types between South Asia and Europe.

Zahra R, Javeed S, Malala B, Babenko D, Toleman MA.

J Antimicrob Chemother. 2018 Jul 1;73(7):1781-1785. doi: 10.1093/jac/dky109.


Direct in Gel Genomic Detection of Antibiotic Resistance Genes in S1 Pulsed Field Electrophoresis Gels.

Toleman MA.

Methods Mol Biol. 2018;1736:129-136. doi: 10.1007/978-1-4939-7638-6_12.


In vitro and in vivo activity of Manuka honey against NDM-1-producing Klebsiella pneumoniae ST11.

Qamar MU, Saleem S, Toleman MA, Saqalein M, Waseem M, Nisar MA, Khurshid M, Taj Z, Jahan S.

Future Microbiol. 2018 Jan;13:13-26. doi: 10.2217/fmb-2017-0119. Epub 2017 Dec 11.


The Future of Peritoneal Dialysis in a Moving Landscape of Bacterial Resistance.

Toleman MA.

Perit Dial Int. 2017 Mar-Apr;37(2):134-140. doi: 10.3747/pdi.2016.00038. Review. No abstract available.


Horizontal transfer of the blaNDM-1 gene to Pseudomonas aeruginosa and Acinetobacter baumannii in biofilms.

Tanner WD, Atkinson RM, Goel RK, Toleman MA, Benson LS, Porucznik CA, VanDerslice JA.

FEMS Microbiol Lett. 2017 Apr 1;364(8). doi: 10.1093/femsle/fnx048.


First detection of extended-spectrum cephalosporin- and fluoroquinolone-resistant Escherichia coli in Australian food-producing animals.

Abraham S, Jordan D, Wong HS, Johnson JR, Toleman MA, Wakeham DL, Gordon DM, Turnidge JD, Mollinger JL, Gibson JS, Trott DJ.

J Glob Antimicrob Resist. 2015 Dec;3(4):273-277. doi: 10.1016/j.jgar.2015.08.002. Epub 2015 Sep 28.


Unconventional Human T Cells Accumulate at the Site of Infection in Response to Microbial Ligands and Induce Local Tissue Remodeling.

Liuzzi AR, Kift-Morgan A, Lopez-Anton M, Friberg IM, Zhang J, Brook AC, Roberts GW, Donovan KL, Colmont CS, Toleman MA, Bowen T, Johnson DW, Topley N, Moser B, Fraser DJ, Eberl M.

J Immunol. 2016 Sep 15;197(6):2195-207. doi: 10.4049/jimmunol.1600990. Epub 2016 Aug 15.


Genetic & virulence profiling of ESBL-positive E. coli from nosocomial & veterinary sources.

Tyrrell JM, Wootton M, Toleman MA, Howe RA, Woodward M, Walsh TR.

Vet Microbiol. 2016 Apr 15;186:37-43. doi: 10.1016/j.vetmic.2016.02.007. Epub 2016 Feb 18.


Extensively drug-resistant New Delhi metallo-β-lactamase-encoding bacteria in the environment, Dhaka, Bangladesh, 2012.

Toleman MA, Bugert JJ, Nizam SA.

Emerg Infect Dis. 2015 Jun;21(6):1027-30. doi: 10.3201/eid2106.141578.


Random insertion and gene disruption via transposon mutagenesis of Ureaplasma parvum using a mini-transposon plasmid.

Aboklaish AF, Dordet-Frisoni E, Citti C, Toleman MA, Glass JI, Spiller OB.

Int J Med Microbiol. 2014 Nov;304(8):1218-25. doi: 10.1016/j.ijmm.2014.09.003. Epub 2014 Sep 26.


Characterization of plasmids in extensively drug-resistant acinetobacter strains isolated in India and Pakistan.

Jones LS, Carvalho MJ, Toleman MA, White PL, Connor TR, Mushtaq A, Weeks JL, Kumarasamy KK, Raven KE, Török ME, Peacock SJ, Howe RA, Walsh TR.

Antimicrob Agents Chemother. 2015 Feb;59(2):923-9. doi: 10.1128/AAC.03242-14. Epub 2014 Nov 24.


Plasmid carriage of bla NDM-1 in clinical Acinetobacter baumannii isolates from India.

Jones LS, Toleman MA, Weeks JL, Howe RA, Walsh TR, Kumarasamy KK.

Antimicrob Agents Chemother. 2014 Jul;58(7):4211-3. doi: 10.1128/AAC.02500-14. Epub 2014 Apr 21.


Genetic characterization and emergence of the metallo-β-lactamase GIM-1 in Pseudomonas spp. and Enterobacteriaceae during a long-term outbreak.

Wendel AF, Brodner AH, Wydra S, Ressina S, Henrich B, Pfeffer K, Toleman MA, Mackenzie CR.

Antimicrob Agents Chemother. 2013 Oct;57(10):5162-5. doi: 10.1128/AAC.00118-13. Epub 2013 Jul 22.


Spread of extensively resistant VIM-2-positive ST235 Pseudomonas aeruginosa in Belarus, Kazakhstan, and Russia: a longitudinal epidemiological and clinical study.

Edelstein MV, Skleenova EN, Shevchenko OV, D'souza JW, Tapalski DV, Azizov IS, Sukhorukova MV, Pavlukov RA, Kozlov RS, Toleman MA, Walsh TR.

Lancet Infect Dis. 2013 Oct;13(10):867-76. doi: 10.1016/S1473-3099(13)70168-3. Epub 2013 Jul 9.


Identical miniature inverted repeat transposable elements flank class 1 integrons in clinical isolates of Acinetobacter spp.

Domingues S, Toleman MA, Nielsen KM, da Silva GJ.

J Clin Microbiol. 2013 Jul;51(7):2382-4. doi: 10.1128/JCM.00692-13. Epub 2013 Apr 17.


Genetic and biochemical characterization of an acquired subgroup B3 metallo-β-lactamase gene, blaAIM-1, and its unique genetic context in Pseudomonas aeruginosa from Australia.

Yong D, Toleman MA, Bell J, Ritchie B, Pratt R, Ryley H, Walsh TR.

Antimicrob Agents Chemother. 2012 Dec;56(12):6154-9. doi: 10.1128/AAC.05654-11. Epub 2012 Sep 17.


blaNDM-1 is a chimera likely constructed in Acinetobacter baumannii.

Toleman MA, Spencer J, Jones L, Walsh TR.

Antimicrob Agents Chemother. 2012 May;56(5):2773-6. doi: 10.1128/AAC.06297-11. Epub 2012 Feb 6.


Genetic and biochemical characterization of a novel metallo-β-lactamase, TMB-1, from an Achromobacter xylosoxidans strain isolated in Tripoli, Libya.

El Salabi A, Borra PS, Toleman MA, Samuelsen Ø, Walsh TR.

Antimicrob Agents Chemother. 2012 May;56(5):2241-5. doi: 10.1128/AAC.05640-11. Epub 2012 Jan 30.


The emergence of pan-resistant Gram-negative pathogens merits a rapid global political response.

Walsh TR, Toleman MA.

J Antimicrob Chemother. 2012 Jan;67(1):1-3. doi: 10.1093/jac/dkr378. Epub 2011 Oct 12.


Combinatorial events of insertion sequences and ICE in Gram-negative bacteria.

Toleman MA, Walsh TR.

FEMS Microbiol Rev. 2011 Sep;35(5):912-35. doi: 10.1111/j.1574-6976.2011.00294.x. Epub 2011 Jul 29. Review.


Molecular characterization of VIM-producing Klebsiella pneumoniae from Scandinavia reveals genetic relatedness with international clonal complexes encoding transferable multidrug resistance.

Samuelsen Ø, Toleman MA, Hasseltvedt V, Fuursted K, Leegaard TM, Walsh TR, Sundsfjord A, Giske CG.

Clin Microbiol Infect. 2011 Dec;17(12):1811-6. doi: 10.1111/j.1469-0691.2011.03532.x. Epub 2011 May 20.


Human neutrophil clearance of bacterial pathogens triggers anti-microbial γδ T cell responses in early infection.

Davey MS, Lin CY, Roberts GW, Heuston S, Brown AC, Chess JA, Toleman MA, Gahan CG, Hill C, Parish T, Williams JD, Davies SJ, Johnson DW, Topley N, Moser B, Eberl M.

PLoS Pathog. 2011 May;7(5):e1002040. doi: 10.1371/journal.ppat.1002040. Epub 2011 May 12.


A promising target for treatment of multidrug-resistant bacterial infections.

Davey MS, Tyrrell JM, Howe RA, Walsh TR, Moser B, Toleman MA, Eberl M.

Antimicrob Agents Chemother. 2011 Jul;55(7):3635-6. doi: 10.1128/AAC.00382-11. Epub 2011 May 2. No abstract available.


Dissemination of NDM-1 positive bacteria in the New Delhi environment and its implications for human health: an environmental point prevalence study.

Walsh TR, Weeks J, Livermore DM, Toleman MA.

Lancet Infect Dis. 2011 May;11(5):355-62. doi: 10.1016/S1473-3099(11)70059-7. Epub 2011 Apr 7.


Does broad-spectrum beta-lactam resistance due to NDM-1 herald the end of the antibiotic era for treatment of infections caused by Gram-negative bacteria?

Nordmann P, Poirel L, Toleman MA, Walsh TR.

J Antimicrob Chemother. 2011 Apr;66(4):689-92. doi: 10.1093/jac/dkq520. Epub 2011 Jan 28.


The new medical challenge: why NDM-1? Why Indian?

Walsh TR, Toleman MA.

Expert Rev Anti Infect Ther. 2011 Feb;9(2):137-41. doi: 10.1586/eri.10.159. No abstract available.


How to detect NDM-1 producers.

Nordmann P, Poirel L, Carrër A, Toleman MA, Walsh TR.

J Clin Microbiol. 2011 Feb;49(2):718-21. doi: 10.1128/JCM.01773-10. Epub 2010 Dec 1. Review.


Global spread of New Delhi metallo-β-lactamase 1.

Hammerum AM, Toleman MA, Hansen F, Kristensen B, Lester CH, Walsh TR, Fuursted K.

Lancet Infect Dis. 2010 Dec;10(12):829-30. doi: 10.1016/S1473-3099(10)70276-0. No abstract available.


Emergence of a new antibiotic resistance mechanism in India, Pakistan, and the UK: a molecular, biological, and epidemiological study.

Kumarasamy KK, Toleman MA, Walsh TR, Bagaria J, Butt F, Balakrishnan R, Chaudhary U, Doumith M, Giske CG, Irfan S, Krishnan P, Kumar AV, Maharjan S, Mushtaq S, Noorie T, Paterson DL, Pearson A, Perry C, Pike R, Rao B, Ray U, Sarma JB, Sharma M, Sheridan E, Thirunarayan MA, Turton J, Upadhyay S, Warner M, Welfare W, Livermore DM, Woodford N.

Lancet Infect Dis. 2010 Sep;10(9):597-602. doi: 10.1016/S1473-3099(10)70143-2. Epub 2010 Aug 10.


ISCR elements are key players in IncA/C plasmid evolution.

Toleman MA, Walsh TR.

Antimicrob Agents Chemother. 2010 Aug;54(8):3534; author reply 3534. doi: 10.1128/AAC.00383-10. No abstract available.


Molecular epidemiology of metallo-beta-lactamase-producing Pseudomonas aeruginosa isolates from Norway and Sweden shows import of international clones and local clonal expansion.

Samuelsen O, Toleman MA, Sundsfjord A, Rydberg J, Leegaard TM, Walder M, Lia A, Ranheim TE, Rajendra Y, Hermansen NO, Walsh TR, Giske CG.

Antimicrob Agents Chemother. 2010 Jan;54(1):346-52. doi: 10.1128/AAC.00824-09. Epub 2009 Nov 2.


First report of the metallo-beta-lactamase SPM-1 in Europe.

Salabi AE, Toleman MA, Weeks J, Bruderer T, Frei R, Walsh TR.

Antimicrob Agents Chemother. 2010 Jan;54(1):582. doi: 10.1128/AAC.00719-09. Epub 2009 Oct 26. No abstract available.


Characterization of a new metallo-beta-lactamase gene, bla(NDM-1), and a novel erythromycin esterase gene carried on a unique genetic structure in Klebsiella pneumoniae sequence type 14 from India.

Yong D, Toleman MA, Giske CG, Cho HS, Sundman K, Lee K, Walsh TR.

Antimicrob Agents Chemother. 2009 Dec;53(12):5046-54. doi: 10.1128/AAC.00774-09. Epub 2009 Sep 21.


ISCR2, another vehicle for bla(VEB) gene acquisition.

Poirel L, Mugnier PD, Toleman MA, Walsh TR, Rapoport MJ, Petroni A, Nordmann P.

Antimicrob Agents Chemother. 2009 Nov;53(11):4940-3. doi: 10.1128/AAC.00414-09. Epub 2009 Aug 24.


Emergence and persistence of integron structures harbouring VIM genes in the Children's Memorial Health Institute, Warsaw, Poland, 1998-2006.

Patzer JA, Walsh TR, Weeks J, Dzierzanowska D, Toleman MA.

J Antimicrob Chemother. 2009 Feb;63(2):269-73. doi: 10.1093/jac/dkn512. Epub 2008 Dec 18.


Molecular analysis of the sequences surrounding blaOXA-45 reveals acquisition of this gene by Pseudomonas aeruginosa via a novel ISCR element, ISCR5.

Li H, Walsh TR, Toleman MA.

Antimicrob Agents Chemother. 2009 Mar;53(3):1248-51. doi: 10.1128/AAC.00480-08. Epub 2008 Dec 8.


The first metallo-beta-lactamase identified in norway is associated with a TniC-like transposon in a Pseudomonas aeruginosa isolate of sequence type 233 imported from Ghana.

Samuelsen O, Buarø L, Toleman MA, Giske CG, Hermansen NO, Walsh TR, Sundsfjord A.

Antimicrob Agents Chemother. 2009 Jan;53(1):331-2. doi: 10.1128/AAC.00785-08. Epub 2008 Nov 17. No abstract available.


Evolution of the ISCR3 group of ISCR elements.

Toleman MA, Walsh TR.

Antimicrob Agents Chemother. 2008 Oct;52(10):3789-91. doi: 10.1128/AAC.00479-08. Epub 2008 Jul 28.


Complete Sequence of p07-406, a 24,179-base-pair plasmid harboring the blaVIM-7 metallo-beta-lactamase gene in a Pseudomonas aeruginosa isolate from the United States.

Li H, Toleman MA, Bennett PM, Jones RN, Walsh TR.

Antimicrob Agents Chemother. 2008 Sep;52(9):3099-105. doi: 10.1128/AAC.01093-07. Epub 2008 Jun 30.


Global emergence of trimethoprim/sulfamethoxazole resistance in Stenotrophomonas maltophilia mediated by acquisition of sul genes.

Toleman MA, Bennett PM, Bennett DM, Jones RN, Walsh TR.

Emerg Infect Dis. 2007 Apr;13(4):559-65.


Characterization of an integron carrying blaIMP-1 and a new aminoglycoside resistance gene, aac(6')-31, and its dissemination among genetically unrelated clinical isolates in a Brazilian hospital.

Mendes RE, Castanheira M, Toleman MA, Sader HS, Jones RN, Walsh TR.

Antimicrob Agents Chemother. 2007 Jul;51(7):2611-4. Epub 2007 Apr 30.


Comment on: Occurrence, prevalence and genetic environment of CTX-M beta-lactamases in Enterobacteriaceae from Indian hospitals.

Walsh TR, Toleman MA, Jones RN.

J Antimicrob Chemother. 2007 Apr;59(4):799-800; author reply 800-1. Epub 2007 Feb 8. No abstract available.


ISCR elements: novel gene-capturing systems of the 21st century?

Toleman MA, Bennett PM, Walsh TR.

Microbiol Mol Biol Rev. 2006 Jun;70(2):296-316. Review.


Common regions e.g. orf513 and antibiotic resistance: IS91-like elements evolving complex class 1 integrons.

Toleman MA, Bennett PM, Walsh TR.

J Antimicrob Chemother. 2006 Jul;58(1):1-6. Epub 2006 Jun 2.


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