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Wexler, Hannah M

Title(s)Adjunct Professor, Medicine
Phone310-268-3404
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Sydenham TV, Overballe-Petersen S, Hasman H, Wexler H, Kemp M, Justesen US. Complete hybrid genome assembly of clinical multidrug-resistant Bacteroides fragilis isolates enables comprehensive identification of antimicrobial-resistance genes and plasmids. Microb Genom. 2019 11; 5(11). PMID: 31697231.
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    2. Veeranagouda Y, Husain F, Wexler HM. Transposon Mutagenesis of Bacteroides fragilis. Methods Mol Biol. 2019; 2016:105-116. PMID: 31197713.
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    3. Tajkarimi M, Wexler HM. CRISPR-Cas Systems in Bacteroides fragilis, an Important Pathobiont in the Human Gut Microbiome. Front Microbiol. 2017; 8:2234. PMID: 29218031.
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    4. Husain F, Tang K, Veeranagouda Y, Boente R, Patrick S, Blakely G, Wexler HM. Novel large-scale chromosomal transfer in Bacteroides fragilis contributes to its pan-genome and rapid environmental adaptation. Microb Genom. 2017 11; 3(11). PMID: 29208130.
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    5. Hastey CJ, Boyd H, Schuetz AN, Anderson K, Citron DM, Dzink-Fox J, Hackel M, Hecht DW, Jacobus NV, Jenkins SG, Karlsson M, Knapp CC, Koeth LM, Wexler H, Roe-Carpenter DE. Changes in the antibiotic susceptibility of anaerobic bacteria from 2007-2009 to 2010-2012 based on the CLSI methodology. Anaerobe. 2016 Dec; 42:27-30. PMID: 27427465.
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    6. Husain F, Veeranagouda Y, Boente R, Tang K, Mulato G, Wexler HM. The Ellis Island Effect: A novel mobile element in a multi-drug resistant Bacteroides fragilis clinical isolate includes a mosaic of resistance genes from Gram-positive bacteria. Mob Genet Elements. 2014; 4:e29801. PMID: 25165618.
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    7. Veeranagouda Y, Husain F, Boente R, Moore J, Smith CJ, Rocha ER, Patrick S, Wexler HM. Deficiency of the ferrous iron transporter FeoAB is linked with metronidazole resistance in Bacteroides fragilis. J Antimicrob Chemother. 2014 Oct; 69(10):2634-43. PMID: 25028451.
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    8. Veeranagouda Y, Husain F, Tenorio EL, Wexler HM. Identification of genes required for the survival of B. fragilis using massive parallel sequencing of a saturated transposon mutant library. BMC Genomics. 2014 Jun 04; 15:429. PMID: 24899126.
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    9. Brook I, Wexler HM, Goldstein EJ. Antianaerobic antimicrobials: spectrum and susceptibility testing. Clin Microbiol Rev. 2013 Jul; 26(3):526-46. PMID: 23824372.
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    10. Husain F, Veeranagouda Y, Hsi J, Meggersee R, Abratt V, Wexler HM. Two multidrug-resistant clinical isolates of Bacteroides fragilis carry a novel metronidazole resistance nim gene (nimJ). Antimicrob Agents Chemother. 2013 Aug; 57(8):3767-74. PMID: 23716049.
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    11. Veeranagouda Y, Husain F, Wexler HM. Transposon mutagenesis of Bacteroides fragilis using a mariner transposon vector. Anaerobe. 2013 Aug; 22:126-9. PMID: 23664906.
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    12. Veeranagouda Y, Husain F, Wexler HM. Transposon mutagenesis of the anaerobic commensal, Bacteroides fragilis, using the EZ::TN5 transposome. FEMS Microbiol Lett. 2012 Aug; 333(2):94-100. PMID: 22639975.
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    13. Wexler HM. Pump it up: occurrence and regulation of multi-drug efflux pumps in Bacteroides fragilis. Anaerobe. 2012 Apr; 18(2):200-8. PMID: 22266580.
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    14. Nakano V, Nascimento e Silva Ad, Merino VR, Wexler HM, Avila-Campos MJ. Antimicrobial resistance and prevalence of resistance genes in intestinal Bacteroidales strains. Clinics (Sao Paulo). 2011; 66(4):543-7. PMID: 21655744.
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    15. Wexler HM, Tenorio E, Pumbwe L. Characteristics of Bacteroides fragilis lacking the major outer membrane protein, OmpA. Microbiology. 2009 Aug; 155(Pt 8):2694-2706. PMID: 19497947.
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    16. Avidan O, Kaltageser E, Pechatnikov I, Wexler HM, Shainskaya A, Nitzan Y. Isolation and characterization of porins from Desulfovibrio piger and Bilophila wadsworthia: structure and gene sequencing. Arch Microbiol. 2008 Dec; 190(6):641-50. PMID: 18709355.
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    17. Magalashvili L, Lazarovich S, Pechatnikov I, Wexler HM, Nitzan Y. Cytokine release and expression induced by OmpA proteins from the Gram-negative anaerobes, Porphyromonas asaccharolytica and Bacteroides fragilis. FEMS Immunol Med Microbiol. 2008 Jul; 53(2):252-9. PMID: 18503547.
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    18. Pumbwe L, Skilbeck CA, Wexler HM. Presence of quorum-sensing systems associated with multidrug resistance and biofilm formation in Bacteroides fragilis. Microb Ecol. 2008 Oct; 56(3):412-9. PMID: 18188535.
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    19. Wexler HM. Bacteroides: the good, the bad, and the nitty-gritty. Clin Microbiol Rev. 2007 Oct; 20(4):593-621. PMID: 17934076.
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    20. Pumbwe L, Skilbeck CA, Wexler HM. Induction of multiple antibiotic resistance in Bacteroides fragilis by benzene and benzene-derived active compounds of commonly used analgesics, antiseptics and cleaning agents. J Antimicrob Chemother. 2007 Dec; 60(6):1288-97. PMID: 17884830.
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    21. Pumbwe L, Skilbeck CA, Wexler HM. Impact of anatomic site on growth, efflux-pump expression, cell structure, and stress responsiveness of Bacteroides fragilis. Curr Microbiol. 2007 Oct; 55(4):362-5. PMID: 17882508.
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    22. Pumbwe L, Skilbeck CA, Nakano V, Avila-Campos MJ, Piazza RM, Wexler HM. Bile salts enhance bacterial co-aggregation, bacterial-intestinal epithelial cell adhesion, biofilm formation and antimicrobial resistance of Bacteroides fragilis. Microb Pathog. 2007 Aug-Sep; 43(2-3):78-87. PMID: 17524609.
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    23. Magalashvili L, Pechatnikov I, Wexler HM, Nitzan Y. Isolation and characterization of the Omp-PA porin from Porphyromonas asaccharolytica, determination of the omp-PA gene sequence and prediction of Omp-PA protein structure. Anaerobe. 2007 Apr; 13(2):74-82. PMID: 17229581.
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    24. Pumbwe L, Chang A, Smith RL, Wexler HM. BmeRABC5 is a multidrug efflux system that can confer metronidazole resistance in Bacteroides fragilis. Microb Drug Resist. 2007; 13(2):96-101. PMID: 17650960.
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    25. Pumbwe L, Skilbeck CA, Wexler HM. The Bacteroides fragilis cell envelope: quarterback, linebacker, coach-or all three? Anaerobe. 2006 Oct-Dec; 12(5-6):211-20. PMID: 17045496.
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    26. Pumbwe L, Glass D, Wexler HM. Efflux pump overexpression in multiple-antibiotic-resistant mutants of Bacteroides fragilis. Antimicrob Agents Chemother. 2006 Sep; 50(9):3150-3. PMID: 16940115.
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    27. Pumbwe L, Chang A, Smith RL, Wexler HM. Clinical significance of overexpression of multiple RND-family efflux pumps in Bacteroides fragilis isolates. J Antimicrob Chemother. 2006 Sep; 58(3):543-8. PMID: 16840432.
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    28. Pumbwe L, Ueda O, Yoshimura F, Chang A, Smith RL, Wexler HM. Bacteroides fragilis BmeABC efflux systems additively confer intrinsic antimicrobial resistance. J Antimicrob Chemother. 2006 Jul; 58(1):37-46. PMID: 16757501.
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    29. Wexler HM, Engel AE, Glass D, Li C. In vitro activities of doripenem and comparator agents against 364 anaerobic clinical isolates. Antimicrob Agents Chemother. 2005 Oct; 49(10):4413-7. PMID: 16189137.
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    30. Ueda O, Wexler HM, Hirai K, Shibata Y, Yoshimura F, Fujimura S. Sixteen homologs of the mex-type multidrug resistance efflux pump in Bacteroides fragilis. Antimicrob Agents Chemother. 2005 Jul; 49(7):2807-15. PMID: 15980353.
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    31. Finegold SM, John SS, Vu AW, Li CM, Molitoris D, Song Y, Liu C, Wexler HM. In vitro activity of ramoplanin and comparator drugs against anaerobic intestinal bacteria from the perspective of potential utility in pathology involving bowel flora. Anaerobe. 2004 Aug; 10(4):205-11. PMID: 16701520.
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    32. Wexler HM. In vitro activity of ertapenem: review of recent studies. J Antimicrob Chemother. 2004 Jun; 53 Suppl 2:ii11-21. PMID: 15150179.
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    33. Ricci V, Peterson ML, Rotschafer JC, Wexler H, Piddock LJ. Role of topoisomerase mutations and efflux in fluoroquinolone resistance of Bacteroides fragilis clinical isolates and laboratory mutants. Antimicrob Agents Chemother. 2004 Apr; 48(4):1344-6. PMID: 15047539.
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    34. Liu C, Song Y, McTeague M, Vu AW, Wexler H, Finegold SM. Rapid identification of the species of the Bacteroides fragilis group by multiplex PCR assays using group- and species-specific primers. FEMS Microbiol Lett. 2003 May 16; 222(1):9-16. PMID: 12757940.
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    35. Wexler HM, Molitoris D, St John S, Vu A, Read EK, Finegold SM. In vitro activities of faropenem against 579 strains of anaerobic bacteria. Antimicrob Agents Chemother. 2002 Nov; 46(11):3669-75. PMID: 12384389.
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    36. Finegold SM, Molitoris D, Song Y, Liu C, Vaisanen ML, Bolte E, McTeague M, Sandler R, Wexler H, Marlowe EM, Collins MD, Lawson PA, Summanen P, Baysallar M, Tomzynski TJ, Read E, Johnson E, Rolfe R, Nasir P, Shah H, Haake DA, Manning P, Kaul A. Gastrointestinal microflora studies in late-onset autism. Clin Infect Dis. 2002 Sep 01; 35(Suppl 1):S6-S16. PMID: 12173102.
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    37. Wexler HM. Outer-membrane pore-forming proteins in gram-negative anaerobic bacteria. Clin Infect Dis. 2002 Sep 01; 35(Suppl 1):S65-71. PMID: 12173111.
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    38. Finegold SM, Molitoris D, Phan VT, Vaisanen ML, Wexler HM. Activities of ABT-773 against microaerophilic and fastidious organisms. Antimicrob Agents Chemother. 2002 Aug; 46(8):2716-9. PMID: 12121965.
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    39. Wexler HM, Read EK, Tomzynski TJ. Characterization of omp200, a porin gene complex from Bacteroides fragilis: omp121 and omp71, gene sequence, deduced amino acid sequences and predictions of porin structure. Gene. 2002 Jan 23; 283(1-2):95-105. PMID: 11867216.
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    40. Wexler HM, Molitoris D, Finegold SM. In vitro activities of MK-826 (L-749,345) against 363 strains of anaerobic bacteria. Antimicrob Agents Chemother. 2000 Aug; 44(8):2222-4. PMID: 10898709.
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    41. Wexler HM, Finegold SM. Current susceptibility patterns of anaerobic bacteria. Yonsei Med J. 1998 Dec; 39(6):495-501. PMID: 10097675.
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    42. Wexler HM, Molitoris E, Molitoris D, Finegold SM. In vitro activity of levofloxacin against a selected group of anaerobic bacteria isolated from skin and soft tissue infections. Antimicrob Agents Chemother. 1998 Apr; 42(4):984-6. PMID: 9559829.
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