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Neisseria gonorrhea

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https://www.readbyqxmd.com/read/29136127/risk-of-pelvic-inflammatory-disease-in-relation-to-chlamydia-and-gonorrhea-testing-repeat-testing-and-positivity-a-population-based-cohort-study
#1
Joanne Reekie, Basil Donovan, Rebecca Guy, Jane S Hocking, John M Kaldor, Donna B Mak, Sallie Pearson, David Preen, Louise Stewart, James Ward, Bette Liu
Background: There is uncertainty around whether the risks of pelvic inflammatory disease (PID) differ following Chlamydia trachomatis (chlamydia) and Neisseria gonorrhoeae (gonorrhea) infection. We quantified the risk of PID associated with chlamydia and gonorrhea infection and subsequent repeat infections in a whole-population cohort. Methods: A cohort of 315123 Western Australian women, born during 1974-1995, was probabilistically linked to chlamydia and gonorrhea testing records and to hospitalizations and emergency department presentations for PID from 2002 to 2013...
November 9, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29100864/sustained-simultaneous-delivery-of-metronidazole-and-doxycycline-from-polycaprolactone-matrices-designed-for-intravaginal-treatment-of-pelvic-inflammatory-disease
#2
Meenakshi Pathak, Allan G A Coombes, BoMi Ryu, Peter J Cabot, Mark S Turner, Cheryn Palmer, Dongjie Wang, Kathryn J Steadman
Poly(ɛ-caprolactone) (PCL) intra-vaginal matrices were produced for local delivery of a combination of antibacterials, by rapidly cooling a mixture of drug powders dispersed in PCL solution. Matrices loaded with different combinations of metronidazole (10, 15 and 20% w/w) and doxycycline (10% w/w), were evaluated in vitro for release behavior and antibacterial activity. Rapid 'burst release' of 8-15% of the doxycycline content and 31-37% of the metronidazole content occurred within 24 h when matrices were immersed in simulated vaginal fluid (SVF) at 37°C...
October 31, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29074030/reliable-rapid-assay-for-gonorrhea-and-chlamydia-in%C3%A2-the%C3%A2-emergency-department
#3
Sean P Wilson, Taher Vohra, Jared Goldberg, Christopher Price, Sean Calo, Meredith Mahan, Joseph Miller
BACKGROUND: Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) are common sexually transmitted infections seen in the emergency department (ED). Due to an inability to reliably make accurate diagnosis by physical examination, concern for unreliable follow-up, and current delays in diagnostic nucleic acid amplification testing (NAAT), presumptive treatment active against CT and NG, as described by Centers for Disease Control clinical practice guidelines, is often performed. OBJECTIVES: The purpose of this study was to determine whether a rapid, urine NAAT performed in the ED is noninferior in its diagnostic sensitivity compared with a traditional, swab NAAT assay...
October 23, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29045604/increases-in-neisseria-gonorrhoeae-with-reduced-susceptibility-to-azithromycin-among-men-who-have-sex-with-men-msm-in-seattle-king-county-washington-2012-2016
#4
Lindley A Barbee, Olusegun O Soge, David A Katz, Julia C Dombrowski, King K Holmes, Matthew R Golden
Background: Antimicrobial-resistant Neisseria gonorrhea is a major public health threat. The CDC recommends that clinicians treat gonorrhea with ceftriaxone 250mg plus azithromycin 1g. Resistance to azithromycin could affect gonorrhea control efforts. Methods: We evaluated antimicrobial susceptibility profiles and clinical data of gonococcal isolates collected at the Public Health-Seattle & King County (PHSKC) STD Clinic from 2012-2016, focusing on 2014-2016. We compared cases with CDC azithromycin (AZM) alert value MIC (MIC ≥2 µg/mL) to those with AZM MIC ≤1 µg/mL, and evaluated clinical outcomes...
October 16, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29042497/a-single-dual-function-enzyme-controls-the-production-of-inflammatory-nod-agonist-peptidoglycan-fragments-by-neisseria-gonorrhoeae
#5
Jonathan D Lenz, Kathleen T Hackett, Joseph P Dillard
Neisseria gonorrhoeae gonococcus (GC) is a Gram-negative betaproteobacterium and causative agent of the sexually transmitted infection gonorrhea. During growth, GC releases lipooligosaccharide (LOS) and peptidoglycan (PG) fragments, which contribute significantly to the inflammatory damage observed during human infection. In ascending infection of human Fallopian tubes, inflammation leads to increased risk of ectopic pregnancy, pelvic inflammatory disease, and sterility. Of the PG fragments released by GC, most are disaccharide peptide monomers, and of those, 80% have tripeptide stems despite the observation that tetrapeptide stems make up 80% of the assembled cell wall...
October 17, 2017: MBio
https://www.readbyqxmd.com/read/29028971/infrequent-testing-of-women-for-rectal-chlamydia-and-gonorrhea-in-the-united-states
#6
Guoyu Tao, Karen W Hoover, Melinda B Nye, Philip J Peters, Thomas L Gift, Barbara A Body
Background: Anal sex is a common sexual behavior among women that increases their risk of acquiring rectal infection with Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC). Methods: We estimated the frequency and positivity of rectal CT and GC tests for women aged 15-60 years performed by a large U.S. commercial laboratory between November 2012 and September 2015. We also estimated the frequency and positivity of pharyngeal and genital specimens also performed on the same date...
October 6, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29017374/prevalence-of-sexually-transmitted-infections-and-their-risk-factors-among-female-sex-workers-in-isfahan-iran-a-cross-sectional-study
#7
Maryam Nasirian, Sina Kianersi, Shervin Ghaffari Hoseini, Nazila Kassaian, Majid Yaran, Parisa Shoaei, Behrooz Ataei, Reza Fadaei, Marjan Meshkati, Alireza Emami Naeini, Mojtaba Rostami Jalilian
OBJECTIVES: Female sex workers (FSWs) are at high risk of sexually transmitted infections (STIs) and form a core group to facilitate STI spreading. We aimed to estimate the prevalence of STIs among FSWs who attended Female Harm Reduction Center of Isfahan, Iran, and to determine the association between risky behaviors and STIs. STUDY DESIGN: In a cross-sectional study, 99 FSWs were recruited and interviewed about demographic characteristics and risky behaviors. A trained midwife examined FSWs for genital ulcer, abnormal vaginal discharge, and cervicitis...
January 1, 2017: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/29016383/pathogenesis-of-neisseria-gonorrhoeae-in-the-female-reproductive-tract-neutrophilic-host-response-sustained-infection-and-clinical-sequelae
#8
Jacqueline S Stevens, Alison K Criss
PURPOSE OF REVIEW: Gonorrhea is a major global health concern, caused by the bacterium Neisseria gonorrhoeae. The main clinical feature of acute gonorrhea is neutrophilic influx that is unable to clear infection. Women of reproductive age are predominantly at risk for serious sequelae of gonorrhea, including pelvic inflammatory disease, ectopic pregnancy, and infertility. This review will highlight how neutrophils are recruited to the female reproductive tract (FRT) in response to N. gonorrhoeae, how N...
October 7, 2017: Current Opinion in Hematology
https://www.readbyqxmd.com/read/28946854/cervical-precancerous-changes-and-selected-cervical-microbial-infections-kiambu-county-kenya-2014-a-cross-sectional-study
#9
Evalyne Wambui Kanyina, Lucy Kamau, Margaret Muturi
BACKGROUND: Cervical cancer is the predominant cancer among women in Kenya and second most common in women in developing regions. Population-based cytological screening and early treatment reduces morbidity and mortality associated with the cancer. We determined the occurrence of cervical precancerous changes and cervical microbial infections (Trichomonas vaginalis, Candida albicans, Neisseria gonorrhea and Actinomyces) among women attending Family Health Option Kenya (FHOK) clinic in Thika...
September 25, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28943174/increase-in-sexually-transmitted-infections-in-a-cohort-of-outpatient-hiv-positive-men-who-have-sex-with-men-in-the-parisian-region
#10
E Farfour, S Dimi, C Majerholc, E Fourn, T Séné, M B Chaida, M Vasse, D Zucman
OBJECTIVE: To describe the increased incidence of sexually transmitted infections (STIs) in a cohort of HIV-infected men who have sex with men (MSM), followed in a tertiary hospital of the Île-de-France region. MATERIALS AND METHODS: We performed a monocentric, retrospective, and prospective study. We included symptomatic HIV-infected MSM patients who consulted for their annual consultation. RESULTS: One hundred and eighty patients were seen between 2008-2011 and 215 between 2012-2015...
November 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28932707/neisseria-gonorrhoeae-challenge-increases-matrix-metalloproteinase-8-expression-in-fallopian-tube-explants
#11
Natalia E Juica, Paula I Rodas, Paula Solar, Paula Borda, Renato Vargas, Cristobal Muñoz, Rodolfo Paredes, Myron Christodoulides, Luis A Velasquez
Background:Neisseria gonorrhoeae (Ngo) is the etiological agent of gonorrhea, a sexually transmitted infection that initially infects the female lower genital tract. In untreated women, the bacteria can ascend to the upper genital reproductive tract and infect the fallopian tube (FTs), which is associated with salpingitis and can lead to impaired FT function and infertility. The extracellular matrix (ECM) plays an important role in cell migration and differentiation in the female genital tract, and some pathogens modify the ECM to establish successful infections...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28919833/conventional-culture-versus-nucleic-acid-amplification-tests-for-screening-of-urethral-neisseria-gonorrhea-infection-among-asymptomatic-men-who-have-sex-with-men
#12
Jiratha Budkaew, Bandit Chumworathayi, Chamsai Pientong, Tipaya Ekalaksananan
BACKGROUND: Many methods are used to detect urethral Neisseria gonorrhea (NG) infection among asymptomatic men who have sex with men (MSM). The objective of this study was to define the performance of conventional culture compared to real-time polymerase chain reaction (PCR) for diagnosis of asymptomatic urethral gonorrhea among MSM. METHODS: In this cross-sectional study, 147 clinical specimens for NG testing from asymptomatic participants were evaluated. MSM >18 years old who consented to undergo urethral swab and collection of urine samples from two clinics (one was the sexually transmitted diseases (STDs) mobile clinic and the second was the antiretroviral clinic) located in Khon Kaen, Thailand, were recruited...
2017: Pragmatic and Observational Research
https://www.readbyqxmd.com/read/28904187/genomic-characterization-of-urethritis-associated-neisseria-meningitidis-shows-that-a-wide-range-of-n-meningitidis-strains-can-cause-urethritis
#13
Kevin C Ma, Magnus Unemo, Samo Jeverica, Robert D Kirkcaldy, Hideyuki Takahashi, Makoto Ohnishi, Yonatan H Grad
Neisseria meningitidis, typically a resident of the oro- or nasopharynx and the causative agent of meningococcal meningitis and meningococcemia, is capable of invading and colonizing the urogenital tract. This can result in urethritis, akin to the syndrome caused by its sister species N. gonorrhoeae, the etiologic agent of gonorrhea. Recently, meningococcal strains associated with outbreaks of urethritis were reported to share genetic characteristics with gonococcus, raising the question of the extent to which these strains contain features that promote adaptation to the genitourinary niche, making them gonococcal-like and distinguishing them from other N...
September 13, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28886683/neisseria-gonorrhoeae-drug-resistance-mouse-models-and-vaccine-development
#14
Peter A Rice, William M Shafer, Sanjay Ram, Ann E Jerse
Gonorrhea, an obligate human infection, is on the rise worldwide and gonococcal strains resistant to many antibiotics are emerging. Appropriate antimicrobial treatment and prevention, including effective vaccines, are urgently needed. To guide investigation, an experimental model of genital tract infection has been developed in female mice to study mechanisms by which Neisseria gonorrhoeae evades host-derived antimicrobial factors and to identify protective and immunosuppressive pathways. Refinements of the animal model have also improved its use as a surrogate host of human infection and accelerated the testing of novel therapeutic and prophylactic compounds against gonococcal infection...
September 8, 2017: Annual Review of Microbiology
https://www.readbyqxmd.com/read/28876291/prevalence-of-gonorrhea-and-chlamydia-testing-by-anatomical-site-among-men-who-have-sex-with-men-in-hiv-medical-care-united-states-2013-2014
#15
Monita R Patel, John T Brooks, Yunfeng Tie, Shikha Garg, Heather Bradley
Fewer than one-third of men who have sex with men were tested for Neisseria gonorrhoeae or Chlamydia trachomatis as part of HIV medical care in the United States in 2013 to 2014, and only 11.6% were tested for either sexually transmitted disease at an extragenital site.
August 22, 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28844395/-a-case-of-gonococcal-arthritis-diagnostic-difficulties-and-usefulness-of-synovial-fluid-pcr
#16
N Rouanes, R Sanchez, C Cazanave
INTRODUCTION: The incidence of Neisseria gonorrhoeae septic arthritis remains low in the general population. Its clinical and microbiological diagnostic remains difficult. CASE REPORT: We report a 44-year-old man who presented with a monoarthritis of the right ankle. The diagnosis of gonoccocal septic arthritis was obtained by PCR from the joint fluid. Treatment with ceftriaxone was effective. CONCLUSION: In patients with high risk of N. gonorrhoeae infection, PCR for detection of gonorrhea in synovial fluid could potentially facilitate the diagnostic of gonococcal septic arthritis...
August 24, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28837003/a-national-strategic-plan-for-reducing-the-burden-of-sexually-transmitted-infections-in-israel-by-the-year-2025
#17
Daniel Chemtob, Dan Gandacu, Zohar Mor, Itamar Grotto, Emilia Anis, Elliot Rosenberg
BACKGROUND: There is on ongoing debate in the literature regarding the real burden of STIs (sexually transmitted infections) in Western countries and the proper strategies needed to estimate and to prevent them. Our purpose is to present an evidence-based national strategic plan for STI prevention in Israel through assessing the current burden of illness, leading international preventive strategies, and practical policymaking experience. METHODS: Epidemiologic and health policy data on STIs were analyzed from various sources: a) systematic national surveillance data for the years 2002-2014; b) the international scientific literature (published between 2002-16; keywords: Sexually Transmitted Diseases (STD) (or STI) AND prevention AND intervention AND gonorrhea OR chlamydia OR syphilis; c) internal Ministry of Health (MOH) analyses and reports, and d) expert opinion...
April 19, 2017: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/28828298/screening-for-asymptomatic-chlamydia-and-gonorrhea-in-adolescent-males-in-an-urban-pediatric-emergency-department
#18
Megan E Maraynes, Jennifer H Chao, Konstantinos Agoritsas, Richard Sinert, Shahriar Zehtabchi
AIM: To determine the prevalence of Chlamydia trachomatis (CT) and Neisseria gonorrhea (GC) in young men seeking care in the emergency department (ED) for non-sexually transmitted infection (STI) related symptoms. METHODS: This was a prospective, cross-sectional study in an urban ED. The main outcome was the rate of positive CT and GC on urine nucleic acid amplification testing in males aged 16-21 presenting with non-STI related complaints. RESULTS: Two hundred and eighty-four patients were enrolled, 271 were included in the final data analysis [age range 16-21, median: 18 (quartiles 16-18, 19-21)]...
August 8, 2017: World Journal of Clinical Pediatrics
https://www.readbyqxmd.com/read/28820128/molecular-antimicrobial-resistance-surveillance-for-neisseria-gonorrhoeae-northern-territory-australia
#19
David M Whiley, Ella Trembizki, Cameron Buckley, Kevin Freeman, Robert W Baird, Miles Beaman, Marcus Chen, Basil Donovan, Ratan L Kundu, Christopher K Fairley, Rebecca Guy, Tiffany Hogan, John M Kaldor, Mahdad Karimi, Athena Limnios, David G Regan, Nathan Ryder, Jiunn-Yih Su, James Ward, Monica M Lahra
Neisseria gonorrhoeae antimicrobial resistance (AMR) is a globally recognized health threat; new strategies are needed to enhance AMR surveillance. The Northern Territory of Australia is unique in that 2 different first-line therapies, based primarily on geographic location, are used for gonorrhea treatment. We tested 1,629 N. gonorrhoeae nucleic acid amplification test-positive clinical samples, collected from regions where ceftriaxone plus azithromycin or amoxicillin plus azithromycin are recommended first-line treatments, by using 8 N...
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28781959/structure-based-design-of-ferritin-nanoparticle-immunogens-displaying-antigenic-loops-of-neisseria-gonorrhoeae
#20
Liqin Wang, Daniel Xing, Adriana Le Van, Ann E Jerse, Shuishu Wang
Effective vaccines are urgently needed to combat gonorrhea, a common sexually transmitted bacterial infection, for which treatment options are diminishing due to rapid emergence of antibiotic resistance. We have used a rational approach to the development of gonorrhea vaccines, and genetically engineered nanoparticles to present antigenic peptides of Neisseria gonorrhoeae, the causative agent of gonorrhea. We hypothesized that the ferritin nanocage could be used as a platform to display an ordered array of N...
August 2017: FEBS Open Bio
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