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https://www.readbyqxmd.com/read/28087650/simkania-negevensis-may-produce-long-lasting-infections-in-human-pneumocytes-and-endometrial-cells
#1
Manon Vouga, David Baud, Gilbert Greub
Simkania negevensis is a novel Chlamydia-related bacterium and the founding member of the Simkaniaceae family within the Chlamydiales order. Little is known about the biology and pathogenesis of this bacterium. So far, S. negevensis has been considered as an amoebal symbiont, but its natural host remains unknown. Moreover, evidence of human exposition has been reported worldwide and an association with pneumonia and bronchiolitis is suspected. Here, we evaluated the ability of S. negevensis to replicate in potential environmental reservoirs, namely amoebae and arthropods, as well as in mammalian cells (Vero cells, pneumocytes and endometrial cells) and further evaluated the characteristics of its replicative vacuole...
January 12, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28086915/comparative-study-in-infertile-couples-with-and-without-chlamydia-trachomatis-genital-infection
#2
Yuanchang Zhu, Biao Yin, Tonghua Wu, Lijun Ye, Chunmei Chen, Yong Zeng, Yaou Zhang
BACKGROUND: Chlamydia, caused by the bacterium Chlamydia trachomatis(C. trachomatis), is the most common sexually transmitted disease. The incidence is not clear due to the asymptomatic nature of early stage of infections. The incidence of Chlamydia has not been fully investigated in the Chinese Han population. Since chronic infection with can C. trachomatis can lead to infertility in males and females, it is important to determine the impact of infection on clinical outcomes. The aim of this study is to explore the epidemiology of C...
January 13, 2017: Reproductive Health
https://www.readbyqxmd.com/read/28086838/clinical-characteristics-of-genital-chlamydia-infection-in-pelvic-inflammatory-disease
#3
Sung Taek Park, Suk Woo Lee, Min Jeong Kim, Young Mo Kang, Hye Min Moon, Chae Chun Rhim
BACKGROUND: Chlamydia infection in acute pelvic inflammatory disease (PID) is associated with serious complications including ectopic pregnancy, tubal infertility, Fitz-Hugh-Curtis syndrome and tubo-ovarian abscess (TOA). This study compared clinical and laboratory data between PID with and without chlamydia infection. METHODS: The medical records of 497 women who were admitted with PID between 2002 and 2011 were reviewed. The patients were divided into two groups (PID with and without chlamydia infection), which were compared in terms of the patients' characteristics, clinical presentation, and laboratory findings, including inflammatory markers...
January 13, 2017: BMC Women's Health
https://www.readbyqxmd.com/read/28081044/evaluation-of-the-condom-barriers-scale-for-young-black-men-who-have-sex-with-men-reliability-and-validity-of-3-subscales
#4
Richard A Crosby, Stephanie A Sanders, Cynthia A Graham, Robin Milhausen, William L Yarber, Leandro Mena
BACKGROUND: Reliable and valid scale measures of barriers to condom use are not available for young black men who have sex with men (YBMSM). The purpose of this study was to evaluate the Condom Barriers Scales for application with YBMSM. METHODS: A clinic-based sample of 600 YBMSM completed a computer-assisted self-interview. The primary measure was a 14-item abbreviated version of the Condom Barriers Scale. Reliability and criterion validity were assessed. RESULTS: All 3 subscales were reliable: partner-related barriers (Cronbach α=0...
February 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28080049/modeling-diversity-in-structures-of-bacterial-outer-membrane-lipids
#5
Huilin Ma, Daniel D Cummins, Natalie Brooke Edelstein, Jerry Gomez, Aliza Khan, Masud Dikita Llewellyn, Tara Picudella, Sarah Rose Willsey, Shikha Nangia
Lipopolysaccharides are vital components of the outer membrane of gram-negative bacteria, and they act as extremely strong stimulators of innate immunity in diverse eukaryotic species. The primary immunostimulatory center of the LPS molecule is lipid A-a disaccharide-bound lipophilic domain. Considering the broad diversity in bacterial species, there are variations in the lipid A structure and their immunogenic potency. In this work, we model the lipid A structures of eight commensal or human pathogenic bacterial species: Helicobacter pylori, Porphyromonas gingivalis, Bacteroides fragilis, Bordetella pertussis, Chlamydia trachomatis, Campylobacter jejuni, Neisseria meningitidis, and Salmonella minnesota...
January 12, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28079749/should-female-partners-of-men-with-non-gonococcal-urethritis-negative-for-chlamydia-trachomatis-and-mycoplasma-genitalium-be-informed-and-treated-clinical-outcomes-from-a-partner-study-of-heterosexual-men-with-ngu
#6
Jason J Ong, Angela Sarumpaet, Eric P F Chow, Catriona Bradshaw, Marcus Chen, Tim Read, Christopher K Fairley
BACKGROUND: To determine if female partners of men with pathogen-negative non-gonococcal urethritis (NGU) are at risk of genital infection. METHODS: Secondary data analysis using health records from a large sexually transmitted disease clinic in Melbourne of 1710 men and their female partners attending on the same day from January 2006 to April 2015. Proportions of female partners with symptoms suggesting genital infection or pelvic inflammatory disease (PID) were determined for: (1) men with NGU and no Chlamydia trachomatis or Mycoplasma genitalium (referred to as pathogen-negative NGU) (n = 91); 2) men with urethral C...
February 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28079746/sentinel-surveillance-for-expedited-partner-therapy-prescriptions-using-pharmacy-data-in-2-new-york-city-neighborhoods-2015
#7
Ebiere Okah, Vibhuti Arya, Meighan Rogers, Michelle Kim, Julia Ann Schillinger
BACKGROUND: Expedited partner therapy (EPT) for Chlamydia trachomatis (Ct) is the practice of providing Ct-infected patients with medication, or prescription (prescription-EPT) to deliver to their sex partners without first examining those partners. New York City (NYC) providers commonly use prescription-EPT, yet NYC pharmacists report only occasional receipt of EPT prescriptions. This project assessed the frequency of EPT prescriptions filled in 2 NYC neighborhoods. METHODS: The 2 NYC facilities reporting the most frequent use of prescription-EPT were identified from Ct provider case reports and contacted to ascertain their EPT practices...
February 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28077695/stability-studies-on-dry-swabs-and-wet-mailed-swabs-for-the-detection-of-c-trachomatis-and-n-gonorrhoeae-in-the-aptima-assays
#8
Jeanne Moncada, Carey B Clark, Jeffrey Holden, Edward W Hook, Charlotte A Gaydos, Julius Schachter
The Aptima Combo2 (AC2) and Aptima CT (ACT) (Hologic Inc., San Diego, CA) are nucleic acid amplified tests (NAATs) that detect Chlamydia trachomatis (CT). AC2 also detects Neisseria gonorrhoeae (NG). Storage and temperature conditions may impact the utility of NAATs in some settings and screening programs. We evaluated specimen stability for use beyond the Aptima package insert temperature and duration of storage specifications (between 2° to 30°C, 60 days) in two studies: 1) dry CT seeded swabs were used with ACT after storage at 4°C, 23°C or 36°C for up to 84 days and 2) swabs seeded with CT and NG then placed in transport media were tested with AC2, after mailing via the U...
January 11, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28075562/evidence-for-a-di-%C3%A2%C2%B5-oxo-diamond-core-in-the-mn-iv-fe-iv-activation-intermediate-of-ribonucleotide-reductase-from-chlamydia-trachomatis
#9
Ryan J Martinie, Elizabeth J Blaesi, Carsten Krebs, J Martin Bollinger, Alexey Silakov, Christopher J Pollock
High-valent iron and manganese complexes effect some of the most challenging biochemical reactions known, including hydrocarbon and water oxidations associated with the global carbon cycle and oxygenic photosynthesis, respectively. Their extreme reactivity presents an impediment to structural characterization, but their biological importance and potential chemical utility have, nevertheless, motivated extensive efforts toward that end. Several such intermediates accumulate during activation of class I ribonucleotide reductase (RNR) β subunits, which self-assemble dimetal cofactors with stable one-electron oxidants that serve to initiate the enzyme's free-radical mechanism...
January 11, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28074107/frequency-of-chlamydia-trachomatis-infection-in-cervical-intraepithelial-lesions-and-the-status-of-cytological-p16-ki-67-dual-staining
#10
R Robial, A Longatto-Filho, C M Roteli-Martins, M F Silveira, D Stauffert, G G Ribeiro, I M Linhares, M Tacla, M A Zonta, E C Baracat
BACKGROUND: Chlamydia trachomatis (Ct) is not a disease subject to mandatory reporting in Brazil, and the prevalence rate of this genital infection varies according to the region in which studies are conducted, as well as by the detection technique employed. Ct has been associated with persistence of Human papillomavirus (HPV) infection and the facilitation of cervical carcinoma development. We evaluated the Chlamydia trachomatis infection and its association with cytology, p16/Ki-67 dual-stained cytology and cervical intraepithelial lesions status in a screening cohort in Brazil...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28073612/gonorrhea-and-chlamydia-in-the-emergency-department-continued-need-for-more-focused-treatment-for-men-women-and-pregnant-women
#11
Sean P Wilson, Taher Vohra, McKenna Knych, Jared Goldberg, Christopher Price, Sean Calo, Meredith Mahan, Joseph Miller
INTRODUCTION: Delay in current nucleic acid amplification testing for Neisseria gonorrhoeae and Chlamydia trachomatis has led to recommendations for presumptive treatment in patients with concern for infection and unreliable follow-up. In the urban setting, it is assumed that many patients have unreliable follow-up, therefore presumptive therapy is thought to be used frequently. We sought to measure the frequency of disease and accuracy of presumptive treatment for these infections. METHODS: This was an observational cohort study performed at an urban academic Level 1 trauma center ED with an annual census of 95,000 visits per year...
January 3, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28072668/genital-and-extragenital-gonorrhea-and-chlamydia-in-children-and-adolescents-evaluated-for-sexual-abuse
#12
Nancy D Kellogg, John D Melville, James L Lukefahr, Shalon M Nienow, Edward L Russell
OBJECTIVE: The aim of this study was to describe the use of a nucleic acid amplification test in detecting genital and extragenital Neisseria gonorrhoeae (NG) and Chlamydia trachomatis (CT) in children and adolescents assessed for sexual abuse/assault. METHODS: The charts of children aged 0 to 17 years, consecutively evaluated for sexual victimization, in emergency department and outpatient settings were reviewed. Data extracted included age, sex, type of sexual contact, anogenital findings, previous sexual contact, toxicology results, and sites tested for NG and CT...
January 9, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28068218/comparison-of-self-collected-meatal-swabs-with-urine-specimens-for-the-diagnosis-of-chlamydia-trachomatis-and-neisseria-gonorrhoeae-in-men
#13
Lisa Berry, Belinda Stanley
Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC) are common bacterial causes of sexually transmitted infection. Self-taken meatal swabs are a possible alternative to urine samples in testing for infection; however the data surrounding their use are limited. We carried out a prospective service review in a large sexual health clinic comparing urine samples and self-taken meatal swabs in men presenting for sexual transmissible infection screening for CT and GC with the BD Viper XTR system. We found an overall prevalence of CT infections was 10...
January 9, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28067600/prevalence-of-chlamydia-associated-reactive-arthritis
#14
H Okamoto
No abstract text is available yet for this article.
January 9, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28062393/proportion-of-tubal-factor-infertility-due-to-chlamydia-finite-mixture-modeling-of-serum-antibody-titers
#15
A E Ades, M J Price, D Kounali, V A Akande, G S Wills, M O McClure, P Muir, P J Horner
In this study, we examined whether the proportion of tubal factor infertility (TFI) that is attributable to Chlamydia trachomatis, the population excess fraction (PEF), can be estimated from serological data using finite mixture modeling. Whole-cell inclusion immunofluorescence serum antibody titers were recorded among infertile women seen at St. Michael's Hospital in Bristol, United Kingdom, during the period 1985-1995. Women were classified as TFI cases or controls based on laparoscopic examination. Finite mixture models were used to identify the number of component titer distributions and the proportion of serum samples in each, from which estimates of PEF were derived...
January 6, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28061753/treatment-efficacy-of-azithromycin-1%C3%A2-g-single-dose-versus-doxycycline-100%C3%A2-mg-twice-daily-for-7%C3%A2-days-for-the-treatment-of-rectal-chlamydia-among-men-who-have-sex-with-men-a-double-blind-randomised-controlled-trial-protocol
#16
Andrew Lau, Fabian Kong, Christopher K Fairley, Basil Donovan, Marcus Chen, Catriona Bradshaw, Mark Boyd, Janaki Amin, Peter Timms, Sepehr Tabrizi, David G Regan, David A Lewis, Anna McNulty, Jane S Hocking
BACKGROUND: Rectal infection with Chlamydia trachomatis is one of the most common bacterial sexually transmissible infections among men who have sex with men (MSM) with diagnosis rates continuing to rise. Current treatment guidelines recommend either azithromycin 1 g single dose or doxycycline 100 mg twice daily for 7 days. However, there are increasing concerns about treatment failure with azithromycin. We are conducting the first randomised controlled trial (RCT) to compare treatment efficacy of azithromycin versus doxycycline for the treatment of rectal chlamydia in MSM...
January 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28060011/topical-tenofovir-protects-against-vaginal-shiv-infection-in-macaques-co-infected-with-chlamydia-trachomatis-and-trichomonas-vaginalis
#17
Natalia Makarova, Tara Henning, Andrew Taylor, Chuong Dinh, Jonathan Lipscomb, Rachael Aubert, Debra Hanson, Christi Phillips, John Papp, James Mitchell, Janet Mcnicholl, Gerardo J Garcia-Lerma, Walid Heneine, Ellen Kersh, Charles Dobard
BACKGROUND: Chlamydia trachomatis (CT) and Trichomonas vaginalis (TV), two prevalent sexual transmitted infections, are known to increase HIV risk in women and could potentially diminish pre-exposure prophylaxis (PrEP) efficacy, particularly for topical interventions that rely on local protection. We investigated in macaques whether co-infection with CT/TV reduces protection by vaginal TFV gel. METHODS: Vaginal TFV gel dosing previously shown to provide 100% or 74% protection when applied either 30 minutes or 3 days before SHIV challenge was assessed in pigtailed macaques co-infected with CT/TV and challenged twice-weekly with SHIV162p3 for up to 10 weeks (2 menstrual cycles)...
January 4, 2017: AIDS
https://www.readbyqxmd.com/read/28057084/chlamydia-trachomatis-induced-fitz-hugh-curtis-syndrome-a-case-report
#18
Cyril Jabea Ekabe, Jules Kehbila, Tsi Njim, Benjamin Momo Kadia, Celestine Ntemlefack Tendonge, Gottlieb Lobe Monekosso
BACKGROUND: Fitz-Hugh-Curtis syndrome is defined as perihepatitis associated with pelvic inflammatory disease. Chlamydia trachomatis is one of its most common aetiologies. This syndrome usually presents with right upper quadrant abdominal pain mimicking other hepatobiliary and gastrointestinal pathologies, hence, posing a diagnostic dilemma in settings with limited diagnostic tools. CASE REPORT: A 32 year old African female presented with acute right upper quadrant abdominal pain and vaginal discharge, for which she had previously received treatment in another health center with no improvement...
January 3, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28056825/concordance-of-chlamydia-infections-of-the-rectum-and-urethra-in-same-sex-male-partnerships-a-cross-sectional-analysis
#19
Vincent J Cornelisse, Christopher J Sherman, Jane S Hocking, Henrietta Williams, Lei Zhang, Marcus Y Chen, Catriona S Bradshaw, Clare Bellhouse, Christopher K Fairley, Eric P F Chow
BACKGROUND: Our study aimed to describe the concordance of chlamydia infections of the rectum and urethra in men who have sex with men (MSM) and their male partners. METHODS: This was a cross-sectional study of chlamydia in MSM and their male sexual partners both attending Melbourne Sexual Health Centre (MSHC), Australia, between February 2011 and March 2015. We excluded partnerships where testing for chlamydia at both the rectum and urethra were not undertaken...
January 5, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28052070/identifying-patient-perceived-barriers-to-trichiasis-surgery-in-kongwa-district-tanzania
#20
Ryan J Bickley, Harran Mkocha, Beatriz Munoz, Sheila West
BACKGROUND: Trachomatous trichiasis (TT), inturned eyelashes from repeated infection with Chlamydia trachomatis, is the leading infectious cause of blindness in the world. Though surgery will correct entropion caused by trachoma, uptake of TT surgery remains low. In this case-control study, we identify barriers that prevent TT patients from receiving sight-saving surgery. METHODOLOGY/PRINCIPAL FINDINGS: Participants were selected from a database of TT cases who did (acceptors) and did not (non-acceptors) have surgery as of August 2015...
January 2017: PLoS Neglected Tropical Diseases
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