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A Synthetic, Small, Sulfated Agent Is a Promising Inhibitor of Chlamydia spp. Infection in vivo.

Gallegos KM, Taylor CR, Rabulinski DJ, Del Toro R, Girgis DE, Jourha D, Tiwari V, Desai UR, Ramsey KH.

Front Microbiol. 2019 Jan 16;9:3269. doi: 10.3389/fmicb.2018.03269. eCollection 2018.


Tumor necrosis factor receptor superfamily members 1a and 1b contribute to exacerbation of atherosclerosis by Chlamydia pneumoniae in mice.

Zafiratos MT, Cottrell JT, Manam S, Henderson KK, Ramsey KH, Murthy AK.

Microbes Infect. 2019 Mar;21(2):104-108. doi: 10.1016/j.micinf.2018.09.003. Epub 2018 Oct 4.


Intranasal immunization with recombinant chlamydial protease-like activity factor attenuates atherosclerotic pathology following Chlamydia pneumoniae infection in mice.

Li W, Gudipaty P, Li C, Henderson KK, Ramsey KH, Murthy AK.

Immunol Cell Biol. 2019 Jan;97(1):85-91. doi: 10.1111/imcb.12192. Epub 2018 Aug 23.


Elimination of Mycoplasma contamination in Chlamydia stocks as a result of in vivo passage or plaque isolation.

Sigar IM, Schripsema JH, Kelly KA, Murthy AK, Manam S, Ramsey KH.

BMC Res Notes. 2018 Jun 7;11(1):361. doi: 10.1186/s13104-018-3455-x.


The Chlamydia muridarum plasmid revisited : new insights into growth kinetics.

Skilton RJ, Wang Y, O'Neill C, Filardo S, Marsh P, Bénard A, Thomson NR, Ramsey KH, Clarke IN.

Wellcome Open Res. 2018 Mar 8;3:25. doi: 10.12688/wellcomeopenres.13905.1. eCollection 2018.


Development and evaluation of an enzyme-linked immunosorbent assay for the detection of antibodies to a common urogenital derivative of Chlamydia trachomatis plasmid-encoded PGP3.

Winstanley CE, Ramsey KH, Marsh P, Clarke IN.

J Immunol Methods. 2017 Jun;445:23-30. doi: 10.1016/j.jim.2017.03.002. Epub 2017 Mar 7.


Immunopathogenesis of Chlamydial Infections.

Murthy AK, Li W, Ramsey KH.

Curr Top Microbiol Immunol. 2018;412:183-215. doi: 10.1007/82_2016_18. Review.


Detection of Chlamydia infection in Peromyscus species rodents from sylvatic and laboratory sources.

Ramsey KH, Sigar IM, Schripsema JH, Townsend KE, Barry RJ, Peters J, Platt KB.

Pathog Dis. 2016 Apr;74(3). pii: ftv129. doi: 10.1093/femspd/ftv129. Epub 2016 Jan 4.


The contribution of Chlamydia-specific CD8⁺ T cells to upper genital tract pathology.

Vlcek KR, Li W, Manam S, Zanotti B, Nicholson BJ, Ramsey KH, Murthy AK.

Immunol Cell Biol. 2016 Feb;94(2):208-12. doi: 10.1038/icb.2015.74. Epub 2015 Sep 1.


CD8+ T cells mediate Chlamydia pneumoniae-induced atherosclerosis in mice.

Zafiratos MT, Manam S, Henderson KK, Ramsey KH, Murthy AK.

Pathog Dis. 2015 Oct;73(7). pii: ftv052. doi: 10.1093/femspd/ftv052. Epub 2015 Jul 27.


Genomic variant representation in a Chlamydia population is dynamic and adaptive with dependence on in vitro and in vivo passage.

Jasper DK, Sigar IM, Schripsema JH, Sainvil CK, Smith CL, Yeruva L, Rank RG, Murthy AK, Widder JR, Ramsey KH.

Pathog Dis. 2015 Feb;73(1):1-12. doi: 10.1093/femspd/ftv003. Epub 2015 Jan 28.


Tumor Necrosis Factor (TNF) Receptor Superfamily Member 1b on CD8+ T Cells and TNF Receptor Superfamily Member 1a on Non-CD8+ T Cells Contribute Significantly to Upper Genital Tract Pathology Following Chlamydial Infection.

Manam S, Thomas JD, Li W, Maladore A, Schripsema JH, Ramsey KH, Murthy AK.

J Infect Dis. 2015 Jun 15;211(12):2014-22. doi: 10.1093/infdis/jiu839. Epub 2014 Dec 30.


Plasmid CDS5 influences infectivity and virulence in a mouse model of Chlamydia trachomatis urogenital infection.

Ramsey KH, Schripsema JH, Smith BJ, Wang Y, Jham BC, O'Hagan KP, Thomson NR, Murthy AK, Skilton RJ, Chu P, Clarke IN.

Infect Immun. 2014 Aug;82(8):3341-9. doi: 10.1128/IAI.01795-14. Epub 2014 May 27.


The genetic basis of plasmid tropism between Chlamydia trachomatis and Chlamydia muridarum.

Wang Y, Cutcliffe LT, Skilton RJ, Ramsey KH, Thomson NR, Clarke IN.

Pathog Dis. 2014 Oct;72(1):19-23. doi: 10.1111/2049-632X.12175. Epub 2014 May 8.


Peptide Vaccine: Progress and Challenges.

Li W, Joshi MD, Singhania S, Ramsey KH, Murthy AK.

Vaccines (Basel). 2014 Jul 2;2(3):515-36. doi: 10.3390/vaccines2030515. Review.


The duration of Chlamydia muridarum genital tract infection and associated chronic pathological changes are reduced in IL-17 knockout mice but protection is not increased further by immunization.

Andrew DW, Cochrane M, Schripsema JH, Ramsey KH, Dando SJ, O'Meara CP, Timms P, Beagley KW.

PLoS One. 2013 Sep 20;8(9):e76664. doi: 10.1371/journal.pone.0076664. eCollection 2013.


Plasmid deficiency in urogenital isolates of Chlamydia trachomatis reduces infectivity and virulence in a mouse model.

Sigar IM, Schripsema JH, Wang Y, Clarke IN, Cutcliffe LT, Seth-Smith HM, Thomson NR, Bjartling C, Unemo M, Persson K, Ramsey KH.

Pathog Dis. 2014 Feb;70(1):61-9. doi: 10.1111/2049-632X.12086. Epub 2013 Sep 10.


Role of heparan sulfate in sexually transmitted infections.

Tiwari V, Maus E, Sigar IM, Ramsey KH, Shukla D.

Glycobiology. 2012 Nov;22(11):1402-12. doi: 10.1093/glycob/cws106. Epub 2012 Jul 6. Review.


A role for CXC chemokine receptor-2 in the pathogenesis of urogenital Chlamydia muridarum infection in mice.

Lee HY, Schripsema JH, Sigar IM, Lacy SR, Kasimos JN, Murray CM, Ramsey KH.

FEMS Immunol Med Microbiol. 2010 Oct;60(1):49-56. doi: 10.1111/j.1574-695X.2010.00715.x.


Duration of untreated chlamydial genital infection and factors associated with clearance: review of animal studies.

Miyairi I, Ramsey KH, Patton DL.

J Infect Dis. 2010 Jun 15;201 Suppl 2:S96-103. doi: 10.1086/652393. Review.


Time-dependent disruption of oviduct pacemaker cells by Chlamydia infection in mice.

Dixon RE, Ramsey KH, Schripsema JH, Sanders KM, Ward SM.

Biol Reprod. 2010 Aug 1;83(2):244-53. doi: 10.1095/biolreprod.110.083808. Epub 2010 Apr 28.


A link between neutrophils and chronic disease manifestations of Chlamydia muridarum urogenital infection of mice.

Lee HY, Schripsema JH, Sigar IM, Murray CM, Lacy SR, Ramsey KH.

FEMS Immunol Med Microbiol. 2010 Jun 1;59(1):108-16. doi: 10.1111/j.1574-695X.2010.00668.x. Epub 2010 Mar 10.


Strain and virulence diversity in the mouse pathogen Chlamydia muridarum.

Ramsey KH, Sigar IM, Schripsema JH, Denman CJ, Bowlin AK, Myers GA, Rank RG.

Infect Immun. 2009 Aug;77(8):3284-93. doi: 10.1128/IAI.00147-09. Epub 2009 May 26.


Chlamydia infection causes loss of pacemaker cells and inhibits oocyte transport in the mouse oviduct.

Dixon RE, Hwang SJ, Hennig GW, Ramsey KH, Schripsema JH, Sanders KM, Ward SM.

Biol Reprod. 2009 Apr;80(4):665-73. doi: 10.1095/biolreprod.108.073833. Epub 2008 Dec 23.


A role for matrix metalloproteinase-9 in pathogenesis of urogenital Chlamydia muridarum infection in mice.

Imtiaz MT, Distelhorst JT, Schripsema JH, Sigar IM, Kasimos JN, Lacy SR, Ramsey KH.

Microbes Infect. 2007 Nov-Dec;9(14-15):1561-6. Epub 2007 Sep 8.


Regulation of surfactant protein D in the mouse female reproductive tract in vivo.

Oberley RE, Goss KL, Hoffmann DS, Ault KA, Neff TL, Ramsey KH, Snyder JM.

Mol Hum Reprod. 2007 Dec;13(12):863-8. Epub 2007 Oct 22.


Common house spiders are not likely vectors of community-acquired methicillin-resistant Staphylococcus aureus infections.

Baxtrom C, Mongkolpradit T, Kasimos JN, Braune LM, Wise RD, Sierwald P, Ramsey KH.

J Med Entomol. 2006 Sep;43(5):962-5.


Outcome of urogenital infection with Chlamydia muridarum in CD14 gene knockout mice.

Imtiaz MT, Schripsema JH, Sigar IM, Ramsey KH.

BMC Infect Dis. 2006 Sep 22;6:144.


Expression of matrix metalloproteinases subsequent to urogenital Chlamydia muridarum infection of mice.

Ramsey KH, Sigar IM, Schripsema JH, Shaba N, Cohoon KP.

Infect Immun. 2005 Oct;73(10):6962-73.


Histopathologic changes related to fibrotic oviduct occlusion after genital tract infection of mice with Chlamydia muridarum.

Shah AA, Schripsema JH, Imtiaz MT, Sigar IM, Kasimos J, Matos PG, Inouye S, Ramsey KH.

Sex Transm Dis. 2005 Jan;32(1):49-56.


Inducible nitric oxide synthase regulates production of isoprostanes in vivo during chlamydial genital infection in mice.

Ramsey KH, Sigar IM, Rana SV, Gupta J, Holland SM, Byrne GI, Morrow JD.

Infect Immun. 2003 Dec;71(12):7183-7.


Chlamydia trachomatis enhances the expression of matrix metalloproteinases in an in vitro model of the human fallopian tube infection.

Ault KA, Kelly KA, Ruther PE, Izzo AA, Izzo LS, Sigar IM, Ramsey KH.

Am J Obstet Gynecol. 2002 Nov;187(5):1377-83.


Chlamydia trachomatis disrupts N-cadherin-dependent cell-cell junctions and sequesters beta-catenin in human cervical epithelial cells.

Prozialeck WC, Fay MJ, Lamar PC, Pearson CA, Sigar I, Ramsey KH.

Infect Immun. 2002 May;70(5):2605-13.


Chlamydia trachomatis persistence in the female mouse genital tract: inducible nitric oxide synthase and infection outcome.

Ramsey KH, Miranpuri GS, Sigar IM, Ouellette S, Byrne GI.

Infect Immun. 2001 Aug;69(8):5131-7.


Prior genital tract infection with a murine or human biovar of Chlamydia trachomatis protects mice against heterotypic challenge infection.

Ramsey KH, Cotter TW, Salyer RD, Miranpuri GS, Yanez MA, Poulsen CE, DeWolfe JL, Byrne GI.

Infect Immun. 1999 Jun;67(6):3019-25.


The in vitro antimicrobial capacity of human colostrum against Chlamydia trachomatis.

Ramsey KH, Poulsen CE, Motiu PP.

J Reprod Immunol. 1998 Jul;38(2):155-67.


Dissemination of Chlamydia trachomatis chronic genital tract infection in gamma interferon gene knockout mice.

Cotter TW, Ramsey KH, Miranpuri GS, Poulsen CE, Byrne GI.

Infect Immun. 1997 Jun;65(6):2145-52.


Reactivation of chlamydial genital tract infection in mice.

Cotter TW, Miranpuri GS, Ramsey KH, Poulsen CE, Byrne GI.

Infect Immun. 1997 Jun;65(6):2067-73.


Inflammatory cytokines produced in response to experimental human gonorrhea.

Ramsey KH, Schneider H, Cross AS, Boslego JW, Hoover DL, Staley TL, Kuschner RA, Deal CD.

J Infect Dis. 1995 Jul;172(1):186-91.


Inflammatory cytokine response to experimental human infection with Neisseria gonorrhoeae.

Ramsey KH, Schneider H, Kuschner RA, Trofa AF, Cross AS, Deal CD.

Ann N Y Acad Sci. 1994 Aug 15;730:322-5. No abstract available.


Resolution of murine chlamydial genital infection by the adoptive transfer of a biovar-specific, Th1 lymphocyte clone.

Igietseme JU, Ramsey KH, Magee DM, Williams DM, Kincy TJ, Rank RG.

Reg Immunol. 1993 Nov-Dec;5(6):317-24.


Effect of gamma interferon on resolution of murine chlamydial genital infection.

Rank RG, Ramsey KH, Pack EA, Williams DM.

Infect Immun. 1992 Oct;60(10):4427-9.


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