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Neisseria gonorrhoeae

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https://www.readbyqxmd.com/read/28436019/antibiotic-therapy-for-pelvic-inflammatory-disease
#1
REVIEW
Ricardo F Savaris, Daniele G Fuhrich, Rui V Duarte, Sebastian Franik, Jonathan Ross
BACKGROUND: Pelvic inflammatory disease (PID) is an infection that affects 4% to 12% of young women, and is one of the most common causes of morbidity in this age group. The main intervention for acute PID is the use of broad-spectrum antibiotics which cover Chlamydia trachomatis, Neisseria gonorrhoeae, and anaerobic bacteria, administered intravenously, intramuscularly, or orally. In this review, we assessed the optimal treatment regimen for PID. OBJECTIVES: To assess the effectiveness and safety of antibiotic regimens used to treat pelvic inflammatory disease...
April 24, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28432206/identifying-factors-that-lead-to-the-persistence-of-imported-gonorrhoeae-strains-a-modelling-study
#2
Ben B Hui, David M Whiley, Basil Donovan, Matthew G Law, David G Regan
OBJECTIVE: The importation of Neisseria gonorrhoeae (NG) strains from overseas is believed to be the main source of antimicrobial resistance in Australia. With recent sporadic cases of ceftriaxone-resistant gonorrhoea reported in Australia and elsewhere, we sought to model the potential for imported NG strains to persist in the men who have sex with men (MSM) population in Australia. METHODS: We developed an individual-based model to simulate the transmission of NG in a population of urban MSM, and used this model to investigate factors contributing to the probability that an imported NG strain will persist...
May 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28431495/iron-regulated-small-rna-expression-as-neisseria-gonorrhoeae-fa-1090-transitions-into-stationary-phase-growth
#3
Lydgia A Jackson, Michael Day, Jennie Allen, Edgar Scott, David W Dyer
BACKGROUND: For most pathogens, iron (Fe) homeostasis is crucial for maintenance within the host and the ability to cause disease. The primary transcriptional regulator that controls intracellular Fe levels is the Fur (ferric uptake regulator) protein, which exerts its action on transcription by binding to a promoter-proximal sequence termed the Fur box. Fur-regulated transcriptional responses are often fine-tuned at the post-transcriptional level through the action of small regulatory RNAs (sRNAs)...
April 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28431102/an-escherichia-coli-expression-model-reveals-the-species-specific-function-of-ftsa-from-neisseria-gonorrhoeae-in-cell-division
#4
Yinan Zou, Yan Li, Sanjaya B Ekanayake, Jo-Anne R Dillon
Escherichia coli (Ec) has been used to study the function of cell division proteins from different microorganisms, especially when genetic tools are limited for studying these proteins in their native hosts. The expression of ftsA from N. gonorrhoeae (Ng) disrupted cell division in E. coli resulting in a significant increase in cell length. In some cells, FtsANg localized to the division site and the poles of E. coli cells, but the majority of cells showed no specifical localization. FtsANg did not complement an E...
April 18, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28431096/a-new-rapid-resazurin-based-microdilution-assay-for-antimicrobial-susceptibility-testing-of-neisseria-gonorrhoeae
#5
Sunniva Foerster, Valentino Desilvestro, Lucy J Hathaway, Christian L Althaus, Magnus Unemo
Objectives: Rapid, cost-effective and objective methods for antimicrobial susceptibility testing of Neisseria gonorrhoeae would greatly enhance surveillance of antimicrobial resistance. Etest, disc diffusion and agar dilution methods are subjective, mostly laborious for large-scale testing and take ∼24 h. We aimed to develop a rapid broth microdilution assay using resazurin (blue), which is converted into resorufin (pink fluorescence) in the presence of viable bacteria. Methods: The resazurin-based broth microdilution assay was established using 132 N...
April 19, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28430679/cervicovaginal-levels-of-human-%C3%AE-defensin-1-2-3-and-4-of-reproductive-aged-women-with-chlamydia-trachomatis-infection
#6
Nathália Mayumi Noda-Nicolau, Larissa Brito Bastos, Aline Nascimento Bolpetti, Gabriel Vitor Silva Pinto, Larissa Doddi Marcolino, Camila Marconi, Carolina Sanitá Tafner Ferreira, Jossimara Polettini, Eliane Passarelli Vieira, Márcia Guimarães da Silva
OBJECTIVE: This study included women attending primary health care units in Botucatu, São Paulo, Brazil, to assess the cervicovaginal levels of human β-defensin (hBD) 1, 2, 3, and 4 during Chlamydia trachomatis infection. PATIENTS AND METHODS: Cervicovaginal samples were collected for Pap testing and assessing the presence of infection by C. trachomatis, human papillomavirus, Neisseria gonorrhoeae, and Trichomonas vaginalis. Vaginal smears were taken to evaluate local microbiota...
April 21, 2017: Journal of Lower Genital Tract Disease
https://www.readbyqxmd.com/read/28427377/a-comprehensive-overview-of-urogenital-anorectal-and-oropharyngeal-neisseria-gonorrhoeae-testing-and-diagnoses-among-different-sti-care-providers-a-cross-sectional-study
#7
Casper D J den Heijer, Christian J P A Hoebe, Geneviève A F S van Liere, Jan E A M van Bergen, Jochen W L Cals, Frans S Stals, Nicole H T M Dukers-Muijrers
BACKGROUND: Gonorrhoea, caused by Neisseria gonorrhoeae (NG), can cause reproductive morbidity, is increasingly becoming resistant to antibiotics and is frequently asymptomatic, which shows the essential role of NG test practice. In this study we wanted to compare NG diagnostic testing procedures between different STI care providers serving a defined geographic Dutch region (280,000 inhabitants). METHODS: Data on laboratory testing and diagnosis of urogenital and extragenital (i...
April 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28418303/azithromycin-resistance-and-decreased-ceftriaxone-susceptibility-in-neisseria-gonorrhoeae-hawaii-usa
#8
John R Papp, A Jeanine Abrams, Evelyn Nash, Alan R Katz, Robert D Kirkcaldy, Norman P O'Connor, Pamela S O'Brien, Derek H Harauchi, Eloisa V Maningas, Olusegun O Soge, Ellen N Kersh, Alan Komeya, Juval E Tomas, Glenn M Wasserman, Gail Y Kunimoto, David L Trees, A Christian Whelen
During 2016, eight Neisseria gonorrhoeae isolates from 7 patients in Hawaii were resistant to azithromycin; 5 had decreased in vitro susceptibility to ceftriaxone. Genomic analysis demonstrated a distinct phylogenetic clade when compared with local contemporary strains. Continued evolution and widespread transmission of these strains might challenge the effectiveness of current therapeutic options.
May 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28414664/gonococcal-endocarditis-the-gift-that-stops-giving-an-uncommon-presentation-of-a-common-disease
#9
G Olayemi, M Oferczak, A Elagizi, I El-Abbassi, M Eschete, J Crowe
INTRODUCTION: Gonorrhea is the 2nd most common sexually transmitted disease in the US with 800,000 cases of gonorrhea each year. Disseminated gonorrhea infection occurs in 0.5 percent - 3 percent of these patients and is more frequent in woman younger than 40 years of age. CASE: A 36 year old woman with a history of polysubstance abuse presented with 10 day history of feeling generally unwell. At presentation, vitals were remarkable for tachycardia and hypotension...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28413202/conventional-versus-molecular-detection-of-chlamydia-trachomatis-and-neisseria-gonorrhoeae-among-males-in-a-sexually-transmitted-infections-clinic
#10
S F Situ, C H Ding, S Nawi, A Johar, R Ramli
BACKGROUND: Chlamydia trachomatis and Neisseria gonorrhoeae are important bacterial pathogens of sexually transmitted infections (STIs) worldwide. This study sought to compare the analytical sensitivity and specificity of conventional methods against a rapid molecular method in detecting STIs caused by these bacteria. METHODS: Ninety five first-time male attendees of the Genito-urinary Medicine Clinic in Hospital Kuala Lumpur were included in this cross-sectional study...
April 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/28412384/molecular-epidemiology-of-penicillinase-producing-neisseria-gonorrhoeae-isolates-in-france
#11
Maité Micaëlo, Agathe Goubard, Guy La Ruche, Erick Denamur, Olivier Tenaillon, Emmanuelle Cambau, Hervé Jacquier, Béatrice Bercot
OBJECTIVES: Characterising the molecular epidemiology of antibiotic resistance is crucial for a better understanding of the evolution and spread of resistance in Neisseria gonorrhoeae. Here, we examine the molecular epidemiology of penicillinase-producing N. gonorrhoeae (PPNG) isolates in France. METHODS: We investigated 176 PPNG isolates collected between 2010 and 2012 by the National Reference Centre in France. Genotyping was performed using the NG-MAST technique, blaTEM genes were Sanger-sequenced, and plasmids were characterized by PCR-typing...
April 13, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28407642/the-case-for-extragenital-screening-of-chlamydia-trachomatis-and-neisseria-gonorrhoeae-in-the-college-health-setting
#12
Lauren N Drinkard, Rebecca A Huxta, Ashlee Halbritter, Giang T Nguyen, David Malebranche
BACKGROUND: Although the Centers for Disease Control and Prevention does not recommend routine oropharyngeal and anorectal screening for Chlamydia trachomatis and Neisseria gonorrhoeae in the general population, they do recommend it for men who have sex with men. However, risk-based extragenital screening of men may not have been adopted at all college health centers, and existing research has not focused on the college population. METHODS: We examined health records of men at a college health center in a large urban university over 6 years to evaluate effectiveness of C...
May 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28407641/adverse-birth-outcomes-and-maternal-neisseria-gonorrhoeae-infection-a-population-based-cohort-study-in-washington-state
#13
Christine L Heumann, Laura A S Quilter, McKenna C Eastment, Renee Heffron, Stephen E Hawes
BACKGROUND: Neisseria gonorrhoeae (gonorrhea) remains an important cause of reproductive and obstetric complications. There has been limited population-based research to evaluate the association between maternal gonorrhea and adverse birth outcomes. METHODS: A population-based retrospective cohort study was conducted of women with singleton pregnancies in Washington State from 2003 to 2014 using linked birth certificate and birth hospitalization discharge data. The exposed cohort consisted of women with gonorrhea diagnosed during pregnancy...
May 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28407640/wild-type-gyrase-a-genotype-of-neisseria-gonorrhoeae-predicts-in-vitro-susceptibility-to-ciprofloxacin-a-systematic-review-of-the-literature-and-meta-analysis
#14
Lao-Tzu Allan-Blitz, Xiaoyan Wang, Jeffrey D Klausner
Multidrug-resistant Neisseria gonorrhoeae infections have been declared 1 of the top 3 urgent threats to public health. Approaches to combat resistance include targeted therapy with antibiotics previously thought to be ineffective, made possible by rapid molecular assays to predict susceptibility. Previous studies have associated the gyrase A (gyrA) gene of N. gonorrhoeae with in vitro resistance to ciprofloxacin. We conducted a systematic review of studies comparing N. gonorrhoeae gyrA genotype results with conventional antimicrobial susceptibility testing results...
May 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28406994/neisseria-gonorrhoeae-infects-the-human-endocervix-by-activating-non-muscle-myosin-ii-mediated-epithelial-exfoliation
#15
Liang-Chun Wang, Qian Yu, Vonetta Edwards, Brian Lin, Jessica Qiu, Jerrold R Turner, Daniel C Stein, Wenxia Song
Colonization and disruption of the epithelium is a major infection mechanism of mucosal pathogens. The epithelium counteracts infection by exfoliating damaged cells while maintaining the mucosal barrier function. The sexually transmitted bacterium Neisseria gonorrhoeae (GC) infects the female reproductive tract primarily from the endocervix, causing gonorrhea. However, the mechanism by which GC overcome the mucosal barrier remains elusive. Using a new human tissue model, we demonstrate that GC can penetrate into the human endocervix by inducing the exfoliation of columnar epithelial cells...
April 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28406272/dorsal-longitudinal-foreskin-cut-is-associated-with-reduced-risk-of-hiv-syphilis-and-genital-herpes-in-men-a-cross-sectional-study-in-papua-new-guinea
#16
Andrew J Vallely, David MacLaren, Matthew David, Pamela Toliman, Angela Kelly-Hanku, Ben Toto, Rachael Tommbe, Zure Kombati, Petronia Kaima, Kelwyn Browne, Clement Manineng, Lalen Simeon, Claire Ryan, Handan Wand, Peter Hill, Greg Law, Peter M Siba, W John H McBride, John M Kaldor
INTRODUCTION: Various forms of penile foreskin cutting are practised in Papua New Guinea. In the context of an ecological association observed between HIV infection and the dorsal longitudinal foreskin cut, we undertook an investigation of this relationship at the individual level. METHODS: We conducted a cross-sectional study among men attending voluntary confidential HIV counselling and testing clinics. Following informed consent, participants had a face-to-face interview and an examination to categorize foreskin status...
April 3, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28404675/nucleic-acid-extraction-from-residual-aptima-clinical-samples-evaluation-of-automated-platform-to-enhance-workflow
#17
Julia Mayes, Nadika Liyanarachchy, Michelle N D Balm
Transcription mediated amplification with the Aptima Combo 2 (AC2) assay (Hologic) is a highly sensitive and specific method for detection of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) from clinical samples collected in Aptima collection systems (1).….
April 12, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28400529/control-of-gdhr-expression-in-neisseria-gonorrhoeae-via-autoregulation-and-a-master-repressor-mtrr-of-a-drug-efflux-pump-operon
#18
Corinne E Rouquette-Loughlin, Yaramah M Zalucki, Vijaya L Dhulipala, Jacqueline T Balthazar, Raúl G Doyle, Robert A Nicholas, Afrin A Begum, Erica L Raterman, Ann E Jerse, William M Shafer
The MtrCDE efflux pump of Neisseria gonorrhoeae contributes to gonococcal resistance to a number of antibiotics used previously or currently in treatment of gonorrhea, as well as to host-derived antimicrobials that participate in innate defense. Overexpression of the MtrCDE efflux pump increases gonococcal survival and fitness during experimental lower genital tract infection of female mice. Transcription of mtrCDE can be repressed by the DNA-binding protein MtrR, which also acts as a global regulator of genes involved in important metabolic, physiologic, or regulatory processes...
April 11, 2017: MBio
https://www.readbyqxmd.com/read/28399798/the-picasso-cohort-baseline-characteristics-of-a-cohort-of-men-who-have-sex-with-men-and-male-to-female-transgender-women-at-high-risk-for-syphilis-infection-in-lima-peru
#19
Noah Kojima, Hayoung Park, Kelika A Konda, Dvora L Joseph Davey, Claire C Bristow, Brandon Brown, Segundo R Leon, Silver K Vargas, Gino M Calvo, Carlos F Caceres, Jeffrey D Klausner
BACKGROUND: Men who have sex with men (MSM) and male-to-female transgender women (transwomen) are disproportionately at risk of syphilis infection in Peru. METHODS: From 2013 to 2014, MSM and transwomen seeking human immunodeficiency virus (HIV) or sexually transmitted infection (STI) testing and/or treatment were recruited into a 2-year observational cohort study to determine predictors of recently acquired syphilis infection (defined as a rapid plasma reagin [RPR] titer ≥1:16 and a reactive treponemal antibody test) in Lima, Peru...
April 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28396556/pregnancy-outcomes-in-association-with-stds-including-genital-hsv-2-shedding-in-a-south-african-cohort-study
#20
Dhayendre Moodley, Benn Sartorius, Savithree Madurai, Vani Chetty, Suzanne Maman
OBJECTIVES: Genital herpes simplex virus-2 (HSV-2) shedding in pregnant women in association with neonatal herpes infection has been widely studied but there is limited evidence of its association with pregnancy outcomes. METHODS: In this retrospective observational study, we included a subgroup of pregnant women who were enrolled in a randomized control behavioural intervention study that was conducted in South Africa in 2008-2010. In pregnancy, women had a HIV rapid test done and a genital swab taken to test for curable STIs and HSV-2 DNA...
April 10, 2017: Sexually Transmitted Infections
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