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Chlamydia trachomatis

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https://www.readbyqxmd.com/read/27898567/utilization-of-the-cepheid-xpert%C3%A2-ct-ng-sample-adequacy-control-to-determine-the-influence-of-the-urethral-swab-on-cellular-content-in-post-swab-versus-pre-swab-urine
#1
Stephen J Jordan, Barbara Van Der Pol, Edward W Hook
Chlamydia trachomatis/Neisseria gonorrhoeae assay performance in males is typically determined using post-swab urine, though pre-swab urine is used in practice. We collected swabs and urine from men and used the Cepheid Xpert® CT/NG sample adequacy control to determine the effect of swab collection on urine cellular content. No difference was observed.
November 28, 2016: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27898565/quantitative-real-time-polymerase-chain-reaction-for-the-diagnosis-of-mycoplasma-genitalium-infection-in-south-african-men-with-and-without-symptoms-of-urethritis
#2
Marie Cecilia le Roux, Anwar Ahmed Hoosen
BACKGROUND: This study was done to diagnose Mycoplasma genitalium infection based on bacterial load in urine specimens from symptomatic and asymptomatic men. METHODS: Urine specimens from 94 men with visible urethral discharge, 206 with burning on micturition and 75 without symptoms presenting to a family practitioner were tested for M. genitalium as well as Neisseria gonorrhoeae, Chlamydia trachomatis, Trichomonas vaginalis by transcription-mediated amplification assays...
November 28, 2016: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27894718/chlamydia-suis-and-chlamydia-trachomatis-induce-multifunctional-cd4-t-cells-in-pigs
#3
T Käser, J A Pasternak, M Delgado-Ortega, G Hamonic, K Lai, J Erickson, S Walker, J R Dillon, V Gerdts, F Meurens
Chlamydia trachomatis infections are the most prominent bacterial sexually-transmitted disease world-wide and a lot of effort is put into the development of an effective vaccine. Pigs have been shown to be a valuable animal model for C. trachomatis vaccine development. The aim of this study was to decipher the T-cell-mediated immune response to chlamydial infections including C. trachomatis and C. suis, the chlamydia species naturally infecting pigs with a demonstrated zoonotic potential. Vaginal infection of pigs with C...
November 25, 2016: Vaccine
https://www.readbyqxmd.com/read/27893596/pharmacists-knowledge-and-practices-surrounding-expedited-partner-therapy-for-chlamydia-trachomatis-new-york-city-2012-and-2014
#4
Amanda Reid, Meighan E Rogers, Vibhuti Arya, Zoe R Edelstein, Julia A Schillinger
BACKGROUND: Health care providers in New York City can prescribe treatment for Chlamydia trachomatis (Ct) for a patient's partner without the partner having a medical evaluation ("prescription-expedited partner therapy" [EPT]), and use of prescription-EPT is common. However, there is little known about pharmacists' knowledge and practices surrounding EPT. METHODS: Two cross-sectional surveys, in 2012 and 2014, were conducted with representative samples of supervising pharmacists in NYC neighborhoods with high rates of Ct infection...
November 2016: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27893595/the-impact-of-prescriptions-on-sex-partner-treatment-using-expedited-partner-therapy-for-chlamydia-trachomatis-infection-new-york-city-2014-2015
#5
Ashley Oliver, Meighan Rogers, Julia A Schillinger
BACKGROUND: Chlamydia trachomatis reinfections, often resulting from resuming sex with untreated partners, can increase the risk of pelvic inflammatory disease, infertility, and ectopic pregnancy. Expedited partner therapy (EPT) has been shown to prevent reinfection when provided as medication (Medication-EPT) that patients give to sex partners; however, EPT is often provided as a prescription (Prescription-EPT). We compared partner treatment outcomes for Medication-EPT versus Prescription-EPT...
November 2016: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27892938/dendritic-cell-function-and-pathogen-specific-t-cell-immunity-are-inhibited-in-mice-administered-levonorgestrel-prior-to-intranasal-chlamydia-trachomatis-infection
#6
Nirk E Quispe Calla, Rodolfo D Vicetti Miguel, Ao Mei, Shumin Fan, Jocelyn R Gilmore, Thomas L Cherpes
The growing popularity of levonorgestrel (LNG)-releasing intra-uterine systems for long-acting reversible contraception provides strong impetus to define immunomodulatory properties of this exogenous progestin. In initial in vitro studies herein, we found LNG significantly impaired activation of human dendritic cell (DCs) and their capacity to promote allogeneic T cell proliferation. In follow-up studies in a murine model of intranasal Chlamydia trachomatis infection, we analogously found that LNG treatment prior to infection dramatically reduced CD40 expression in DCs isolated from draining lymph nodes at 2 days post infection (dpi)...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27881530/menstrual-cups-and-sanitary-pads-to-reduce-school-attrition-and-sexually-transmitted-and-reproductive-tract-infections-a-cluster-randomised-controlled-feasibility-study-in-rural-western-kenya
#7
Penelope A Phillips-Howard, Elizabeth Nyothach, Feiko O Ter Kuile, Jackton Omoto, Duolao Wang, Clement Zeh, Clayton Onyango, Linda Mason, Kelly T Alexander, Frank O Odhiambo, Alie Eleveld, Aisha Mohammed, Anna M van Eijk, Rhiannon Tudor Edwards, John Vulule, Brian Faragher, Kayla F Laserson
OBJECTIVES: Conduct a feasibility study on the effect of menstrual hygiene on schoolgirls' school and health (reproductive/sexual) outcomes. DESIGN: 3-arm single-site open cluster randomised controlled pilot study. SETTING: 30 primary schools in rural western Kenya, within a Health and Demographic Surveillance System. PARTICIPANTS: Primary schoolgirls 14-16 years, experienced 3 menses, no precluding disability, and resident in the study area...
November 23, 2016: BMJ Open
https://www.readbyqxmd.com/read/27871264/sti-tests-and-proportion-of-positive-tests-in-female-sex-workers-attending-local-public-health-departments-in-germany-in-2010-11
#8
Viviane Bremer, Karin Haar, Martyna Gassowski, Osamah Hamouda, Stine Nielsen
BACKGROUND: In Germany, local public health departments (LPHD) are required to offer low-threshold access to confidential counselling and testing for sexually transmitted infections (STI) for sex workers. We collected data from LPHD in Germany to estimate the number of performed STI tests and the proportion of positive STI tests among attending female sex workers (FSW) in order to formulate recommendations for improving STI testing and care for FSW in Germany. METHODS: We recruited LPHD across Germany to collect aggregated data on attending FSW between January 2010 and March 2011...
November 21, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27865215/-study-of-the-sociodemographic-factors-and-risky-behaviours-associated-with-the-acquisition-of-sexual-transmitted-infections-by-foreign-exchange-students-in-portugal
#9
Andreia Gravata, Rita Castro, João Borges-Costa
BACKGROUND: Sexual transmitted infections are a main cause of morbidity, being a public health problem due to its reproductive complications, mostly observed in teenagers and young adults. The purpose of this study was to evaluate sociodemographic factors and risky behaviours associated with sexual transmitted infections acquisition and to assess personal awareness of risky behaviour and the knowledge about Chlamydia trachomatis infection between foreign exchange students in Portugal...
June 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/27864473/a-recommendation-for-timing-of-repeat-chlamydia-trachomatis-test-following-infection-and-treatment-in-pregnant-and-nonpregnant-women
#10
Gweneth B Lazenby, Jeffrey E Korte, Sarah Tillman, Florence K Brown, David E Soper
The objective of this study was to describe the time required to obtain a negative chlamydia test in pregnant and nonpregnant women following treatment to inform test-of-cure collection and recommend an abstinence period to avoid reinfection. Seventy-two women with Chlamydia trachomatis infection, 36 pregnant and 36 nonpregnant, were enrolled in a prospective cohort study. Women were excluded less than 18 years of age, if they had been treated for chlamydia, reported an allergy to macrolide antibiotics, or if they had Myasthenia Gravis...
November 18, 2016: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/27862349/lymphogranuloma-venereum-with-only-proximal-rectal-involvement-mimicking-inflammatory-bowel-disease-a-potential-diagnostic-pitfall
#11
F Rob, J Kašpírková, K Jůzlová, M Pešta, J Hercogová
Lymphogranuloma venereum (LGV) is a sexually transmitted infection (STI) caused by the invasive serovars L1, L2 and L3 of Chlamydia trachomatis (C. trachomatis). [1] The incidence of LGV is rising in many Western countries. [2] The most common symptoms of LGV are proctitis and inguinal lymphadenopathy. LGV mimicking inflammatory bowel disease (IBD) is not a rare condition and has already been described in several reports. [3,4] LGV can affect even more proximal parts of the bowel. [5] Diagnosis of LGV is usually done by positive NAAT for C...
November 15, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27861521/risk-factors-associated-with-paraurethral-duct-dilatation-following-gonococcal-paraurethral-duct-infection-in-men
#12
Wenge Fan, Qingsong Zhang, Lin Wang, Xun Ye, Tingwang Jiang
No studies have explored the risk factors for paraurethral duct dilatation following paraurethral duct infection by Neisseria gonorrhoeae in men undergoing ceftriaxone therapy. The present study was performed to explore the risk factors for paraurethral duct dilatation following paraurethral duct infection by N. gonorrhoeae in men undergoing ceftriaxone therapy and thus guide clinical interventions. We compared the demographic, behavioral, and clinical data of men with paraurethral duct infection by N. gonorrhoeae with and without dilatation of the paraurethral duct...
2016: PloS One
https://www.readbyqxmd.com/read/27859690/prevalence-and-distribution-of-chlamydia-trachomatis-genovars-in-indian-infertile-patients-a-pilot-study
#13
Jyoti Rawre, Benu Dhawan, Neena Malhotra, Vishnubhatla Sreenivas, Shobha Broor, Rama Chaudhry
To determine the prevalence and distribution of Chlamydia trachomatis genovars in patients with infertility by PCR-RFLP and ompA gene sequencing. Prevalence of other etiological agents (viz., Ureaplasma spp. and Mycoplasma hominis) were also assessed. Endocervical swabs were collected from 477 women and urine was collected from 151 men attending the Infertility Clinic. The samples were screened for C. trachomatis by cryptic plasmid, ompA gene and nested ompA gene PCR. Genotyping was performed by PCR-RFLP and sequencing...
December 2016: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/27859689/protection-against-genital-tract-chlamydia-trachomatis-infection-following-intranasal-immunization-with-a-novel-recombinant-momp-vs2-4-antigen
#14
Ronza Hadad, Ellen Marks, Irina Kalbina, Karin Schön, Magnus Unemo, Nils Lycke, Åke Strid, Sören Andersson
The asymptomatic nature of most Chlamydia trachomatis infections and the lack of appropriate effects by current prevention and management call for vaccine development. We evaluated a recombinant subunit vaccine candidate based on the major outer membrane protein variable segments 2 and 4 (MOMP VS2/4). To achieve maximal immunogenicity and ease of production and purification, MOMP VS2/4 was constructed by using highly immunogenic sequences of MOMP only, thereby minimizing the presence of hydrophobic regions, and spacing the immunogenic epitopes with a flexible amino acid sequence...
December 2016: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/27855081/a-novel-detection-strategy-to-rapidly-evaluate-the-efficacy-of-anti-chlamydial-agents
#15
Yan Zhang, Yuqi Xian, Leiqiong Gao, Hiba Elaasar, Yao Wang, Lamiya Tauhid, Ziyu Hua, Li Shen
Chlamydia trachomatis infections present a major heath burden worldwide. The conventional method used to detect C. trachomatis is laborious. Herein, a novel strategy is utilized to evaluate the impact of antimicrobial agents on the growth of C. trachomatis and its expression of the ompA promoter-driven green fluorescence protein (GFP). We have demonstrated that this GFP reporter system gives a robust fluorescent display of C. trachomatis growth in human cervical epithelial cells, and further, that GFP protein production directly correlates to changes in ompA expression following sufficient exposure to antimicrobials...
November 14, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27852922/abnormal-expression-of-trail-receptors-in-decidual-tissue-of-chlamydia-trachomatis-infected-rats-during-early-pregnancy-loss
#16
Jinzhi Lu, Liya Zhu, Lei Zhang, Jinpeng Jiang, Fang Xie, Qing Huang, Xiaolan Li, Cunjian Yi
Chlamydia trachomatis is the scientific name of pathogenic bacteria causing infection that has been linked to spontaneous abortion. In this study, the expression pattern of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL; a cytokine related to cell apoptosis) and its receptors was monitored in the decidua of C trachomatis-infected pregnant rats during early gestation to investigate the potential role of this molecular system in C trachomatis-induced spontaneous abortion. The data showed that C trachomatis infection significantly altered the messenger RNA (mRNA) expression of the receptors; death receptor (DR) 4 and DR5 increased, but decoy receptor (DcR) 1 and DcR2 decreased...
November 16, 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27852877/community-seroprevalence-survey-for-yaws-and-trachoma-in-the-western-division-of-fiji
#17
Naomi Cocks, Merelesita Rainima-Qaniuci, Chelsea Yalen, Colin Macleod, Apisalome Nakolinivalu, Stephanie Migchelsen, Chrissy H Roberts, Robert Butcher, Mike Kama, David Mabey, Michael Marks
INTRODUCTION: Both yaws and trachoma are endemic in several countries in the Pacific. In co-endemic countries there may be potential synergies between both control programmes. METHODS: We undertook a cluster randomised trachoma and yaws seroprevalence survey of children in the Western Division of Fiji. Children were examined for skin lesions consistent with active yaws. A dried blood spot was collected which was tested using the Treponema pallidum particle agglutination (TPPA) test and an ELISA to detect antibodies against Pgp3...
November 16, 2016: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27836808/mycoplasma-genitalium-and-trichomonas-vaginalis-in-france-a-point-prevalence-study-in-people-screened-for-sexually-transmitted-diseases
#18
Sabine Pereyre, Cécile Laurier Nadalié, Cécile Bébéar
OBJECTIVES: Mycoplasma genitalium and Trichomonas vaginalis are common causes of sexually transmitted infections but limited prevalence data are available in France. We aimed to evaluate the prevalence of M. genitalium and T. vaginalis infections and to assess prevalence by gender, age, sample collection sites and clinical symptoms. A multicentre collection of specimens was intended to obtain a nationwide overview of the epidemiology. METHODS: Between September 2014 and January 2015, 2652 consecutive urogenital specimens submitted to the microbiology diagnostic departments of 16 French university hospitals for Chlamydia trachomatis and Neisseria gonorrhoeae detection were collected...
November 8, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27836225/impact-of-rapid-diagnostic-testing-for-chlamydia-and-gonorrhea-on-appropriate-antimicrobial-utilization-in-the-emergency-department
#19
Kaitlyn R Rivard, Lisa E Dumkow, Heather M Draper, Kasey L Brandt, David W Whalen, Nnaemeka E Egwuatu
Prolonged turnaround time of Neisseria gonorrhoeae (NG) and Chlamydia trachomatis (CT) test results may delay time to notification and treatment of test-positive patients and result in unnecessary antimicrobial use in test-negative patients. This quasi-experimental study evaluated the impact of NG/CT rapid diagnostic testing (RDT) in an urban emergency department (ED) on treatment appropriateness, time to notification, and cost. Patients tested in December 2013-January 2014 (traditional group, n=200) were compared with those in December 2014-January 2015 (RDT group, n=200)...
October 18, 2016: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/27835626/genotype-specific-concordance-of-chlamydia-trachomatis-genital-infection-within-heterosexual-partnerships
#20
Julia A Schillinger, Barry P Katz, Lauri E Markowitz, Phillip G Braslins, Lydia A Shrier, Guillermo Madico, Barbara Van Der Pol, Donald P Orr, Peter A Rice, Byron E Batteiger
BACKGROUND: Sexual transmission rates of Chlamydia trachomatis (Ct) cannot be measured directly; however, the study of concordance of Ct infection in sexual partnerships (dyads) can help to illuminate factors influencing Ct transmission. METHODS: Heterosexual men and women with Ct infection and their sex partners were enrolled and partner-specific coital and behavioral data collected for the prior 30 days. Microbiological data included Ct culture, and nucleic acid amplification testing (NAAT), quantitative Ct polymerase chain reaction, and ompA genotyping...
December 2016: Sexually Transmitted Diseases
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