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https://www.readbyqxmd.com/read/29223965/advancing-prevention-of-sexually-transmitted-infections-through-point-of-care-testing-target-product-profiles-and-landscape-analysis
#1
Igor Toskin, Maurine Murtagh, Rosanna W Peeling, Karel Blondeel, Joanna Cordero, James Kiarie
OBJECTIVES: Advancing the field of point-of-care testing (POCT) for STIs can rapidly and substantially improve STI control and prevention by providing targeted, essential STI services (case detection and screening). POCT enables definitive diagnosis and appropriate treatment in a single visit and home and community-based testing. METHODS: Since 2014, the WHO Department of Reproductive Health and Research, in collaboration with technical partners, has completed four landscape analyses of promising diagnostics for use at or near the point of patient care to detect syphilis, Neisseria gonorrhoeae, Chlamydia trachomatis, Trichomonas vaginalis and the human papillomavirus...
December 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/29223960/systematic-reviews-of-point-of-care-tests-for-the-diagnosis-of-urogenital-chlamydia-trachomatis-infections
#2
REVIEW
Helen Kelly, Cordelia E M Coltart, Nitika Pant Pai, Jeffrey D Klausner, Magnus Unemo, Igor Toskin, Rosanna W Peeling
BACKGROUND: WHO estimates that 131 million new cases of urogenital Chlamydia trachomatis (CT) infections occur globally every year. Most infections are asymptomatic. Untreated infection in women can lead to severe complications. Screening and treatment of at-risk populations is a priority for prevention and control. OBJECTIVES: To summarise systematic reviews of the performance characteristics of commercially available point-of-care tests (POCT) for screening and diagnosis of urogenital CT infection...
December 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/29218640/oxoiron-iv-complexes-as-synthons-for-the-assembly-of-heterobimetallic-centers-such-as-the-fe-mn-active-site-of-class-ic-ribonucleotide-reductases
#3
Ang Zhou, Patrick M Crossland, Apparao Draksharapu, Andrew J Jasniewski, Scott T Kleespies, Lawrence Que
Nonheme oxoiron(IV) complexes can serve as synthons for generating heterobimetallic oxo-bridged dimetal complexes by reaction with divalent metal complexes. The formation of FeIII-O-CrIII and FeIII-O-MnIII complexes is described herein. The latter complexes may serve as models for the FeIII-X-MnIII active sites of an emerging class of Fe/Mn enzymes represented by the Class 1c ribonucleotide reductase from Chlamydia trachomatis and the R2-like ligand-binding oxidase (R2lox) found in Mycobacterium tuberculosis...
December 7, 2017: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/29217176/a-strong-adjuvant-based-on-glycol-chitosan-coated-lipid-polymer-hybrid-nanoparticles-potentiates-mucosal-immune-responses-against-the-recombinant-chlamydia-trachomatis-fusion-antigen-cth522
#4
Fabrice Rose, Jeanette Erbo Wern, Francesca Gavins, Peter Andersen, Frank Follmann, Camilla Foged
Induction of mucosal immunity with vaccines is attractive for the immunological protection against pathogen entrance directly at the site of infection. An example is infection with Chlamydia trachomatis (Ct), which is the most common sexually transmitted infection in the world, and there is an unmet medical need for an effective vaccine. A vaccine against Ct should elicit protective humoral and cell-mediated immune (CMI) responses in the genital tract mucosa. We previously designed an antibody- and CMI-inducing adjuvant based on poly(dl-lactic-co-glycolic acid) (PLGA) nanoparticles modified with the cationic surfactant dimethyldioctadecylammonium bromide and the immunopotentiator trehalose-6,6'-dibehenate...
December 4, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29216217/the-emerging-role-of-asc-in-dendritic-cell-metabolism-during-chlamydia-infection
#5
Danielle N McKeithen, Yusuf O Omosun, Khamia Ryans, Jing Mu, Zhonglin Xie, Tankya Simoneaux, Uriel Blas-Machado, Francis O Eko, Carolyn M Black, Joseph U Igietseme, Qing He
Chlamydia trachomatis is a bacterial agent that causes sexually transmitted infections worldwide. The regulatory functions of dendritic cells (DCs) play a major role in protective immunity against Chlamydia infections. Here, we investigated the role of ASC in DCs metabolism and the regulation of DCs activation and function during Chlamydia infection. Following Chlamydia stimulation, maturation and antigen presenting functions were impaired in ASC-/- DCs compared to wild type (WT) DCs, in addition, ASC deficiency induced a tolerant phenotype in Chlamydia stimulated DCs...
2017: PloS One
https://www.readbyqxmd.com/read/29212701/multicenter-evaluation-of-the-eplex%C3%A2-respiratory-pathogen-panel-for-the-detection-of-viral-and-bacterial-respiratory-tract-pathogens-in-nasopharyngeal-swabs
#6
N Esther Babady, Matthew R England, Kristen L Jurcic Smith, Taojun He, Dona Saumya Wijetunge, Yi-Wei Tang, Robin R Chamberland, Marilyn Menegus, Ella M Swierkosz, Robert C Jerris, Wallace Greene
Background: The performance of the new ePlex® Respiratory Pathogen (RP) Panel (GenMark Diagnostics) for the simultaneous detection of 19 viruses (influenza A, influenza A H1, influenza A 2009 H1, influenza A H3, influenza B, adenovirus, coronaviruses [HKU1, OC43, NL63, 229E], human rhinovirus/enterovirus, human metapneumovirus, parainfluenza viruses 1, 2, 3 and 4, respiratory syncytial virus (RSV) [RSVA and RSV B]) and two bacteria (Mycoplasma pneumoniae and Chlamydia pneumoniae) was evaluated.Methods: Prospectively and retrospectively collected nasopharyngeal swab (NPS) specimens (n =2,908) were evaluated using the ePlex RP Panel with the bioMérieux/BioFire FilmArray® Respiratory Panel (BF RP) as the comparator method...
December 6, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29212448/from-genomes-to-genotypes-molecular-epidemiological-analysis-of-chlamydia-gallinacea-reveals-a-high-level-of-genetic-diversity-for-this-newly-emerging-chlamydial-pathogen
#7
Weina Guo, Martina Jelocnik, Jing Li, Konrad Sachse, Adam Polkinghorne, Yvonne Pannekoek, Bernhard Kaltenboeck, Jiansen Gong, Jinfeng You, Chengming Wang
BACKGROUND: Chlamydia (C.) gallinacea is a recently identified bacterium that mainly infects domestic chickens. Demonstration of C. gallinacea in human atypical pneumonia suggests its zoonotic potential. Its prevalence in chickens exceeds that of C. psittaci, but genetic and genomic research on C. gallinacea is still at the beginning. In this study, we conducted whole-genome sequencing of C. gallinacea strain JX-1 isolated from an asymptomatic chicken, and comparative genomic analysis between C...
December 6, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29209691/a-case-of-infective-endocarditis-due-to-salmonella-enterica-phagetype-35-first-report
#8
P Laganà, S Delia, G Dattilo, C Mondello, E Ventura Spagnolo
Infective Endocarditis (IE) has high morbidity and mortality. To date, in addition to classic Gram-positive pathogens were isolated exigent Gram negative bacteria responsible of endocarditis as A. baumannii, A. lwoffii, C. burnetii, Bartonella, Chlamydia and Legionella. We report our experience about the isolation of Salmonella enterica phagetype 35 (PT35) from blood heart cavity of a 74-year-old woman after having consumed a portion of baked pasta bought in a rotisserie. Cardiovascular infections due to Salmonella enterica are infrequently reported, so their clinical features, prognosis, and optimal treatment are not completely known...
November 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/29209488/education-early-screening-and-treatment-of-stis-could-reduce-infertility-among-women-in-kenya
#9
EDITORIAL
S M Musundi
In Kenya, sexually transmitted infections (STIs) such as Chlamydia trachomatis, Neisseria gonorrhoea, HIV, herpes simplex virus type 2 (HSV-2), syphilis and trichomoniasis tend to be prevalent, especially in women. Further, the research shows that women who test positive for STIs (other than HIV), have little knowledge of these infections. Of particular concern, is that there has been little attention on the part of government to educate the general public about STIs, yet these diseases can have devastating consequences on women's and men's health...
June 2017: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/29208873/correlation-between-seropositivity-of-chlamydia-trachomatis-and-tubal-and-or-pelvic-pathology-detected-by-diagnostic-laparoscopy-in-subfertile-women
#10
N Begum, S A Anwary, M Alfazzaman, Z Mahzabin, F Deeba, M A Mostafa, M Akhter, M M Rahman
This prospective observational study was carried out in the Infertility Unit, Department of Obstetrics and Gynaecology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, from February 2011 to December 2013. Sixty-nine (69) subfertile women who were seropositive for Chlamydia Trachomatis were included in this study. Inclusion criteria was patients with sub-fertility having age between 22 and 40 years, seeking infertility treatment, normal ovarian function, all normozoospermic male partner, duration of infertility ranged from 1...
October 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29208015/molecular-etiological-profile-of-atypical-bacterial-pathogens-viruses-and-coinfections-among-infants-and-children-with-community-acquired-pneumonia-admitted-to-a-national-hospital-in-lima-peru
#11
Juana Del Valle-Mendoza, Wilmer Silva-Caso, Angela Cornejo-Tapia, Fiorella Orellana-Peralta, Eduardo Verne, Claudia Ugarte, Miguel Angel Aguilar-Luis, María Del Carmen De Lama-Odría, Ronald Nazario-Fuertes, Mónica Esquivel-Vizcarra, Verónica Casabona-Ore, Pablo Weilg, Luis J Del Valle
OBJECTIVE: The main objective of this study was to detect the presence of 14 respiratory viruses and atypical bacteria (Mycoplasma pneumoniae, Chlamydia pneumoniae), via polymerase chain reaction in patients under 18 years old hospitalized due to community-acquired pneumonia (CAP) from Lima, Peru. RESULTS: Atypical pathogens were detected in 40% (58/146); viral etiologies in 36% (52/146) and coinfections in 19% (27/146). The most common etiological agent was M...
December 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29207004/phenotypic-antimicrobial-susceptibility-testing-of-chlamydia-trachomatis-isolates-from-patients-with-persistent-or-successfully-treated-infections
#12
Rachel Pitt, Sarah Alexander, Catherine Ison, Patrick Horner, Emma Hathorn, Penny Goold, Neil Woodford, Michelle J Cole
Objectives: Antimicrobial susceptibility data for Chlamydia trachomatis are lacking. Methodologies for susceptibility testing in C. trachomatis are not well-defined, standardized or performed routinely owing to its intracellular growth requirements. We sought to develop an assay for the in vitro susceptibility testing of C. trachomatis isolates from two patient cohorts with different clinical outcomes. Methods: Twenty-four clinical isolates (11 from persistently infected and 13 from successfully treated patients) were overlaid with media containing two-fold serial dilutions of azithromycin or doxycycline...
November 30, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29205197/detection-of-chlamydia-trachomatis-infections-by-polymerase-chain-reaction-in-asymptomatic-pregnant-women-with-special-reference-to-the-utility-of-the-pooling-of-urine-specimens
#13
Sunil Sethi, Amit Roy, Shubha Garg, Lakshmi Sree Venkatesan, Rashmi Bagga
BACKGROUND & OBJECTIVES: Genital Chlamydia trachomatis (CT) infections are one of the most prevalent sexually transmitted infections across the world. In pregnant women, if not detected and treated early, these may result in poor pregnancy outcomes and complications. The present study was aimed to screen CT infections from first void urine (FVU) samples of asymptomatic pregnant women using molecular methods. The secondary objective was to evaluate cost-effectiveness in pooling FVU samples for their diagnostic application...
July 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29203724/treatments-for-genital-tract-chlamydia-infections-during-pregnancy
#14
(no author information available yet)
No abstract text is available yet for this article.
December 4, 2017: Drug and Therapeutics Bulletin
https://www.readbyqxmd.com/read/29201413/high-risk-sexual-behaviors-while-on-depot-medroxyprogesterone-acetate-as-compared-to-oral-contraception
#15
Deborah Bartz, Rie Maurer, Jessica Kremen, Jennifer M Fortin, Elizabeth Janiak, Alisa B Goldberg
Background: Depot medroxyprogesterone acetate (DMPA) contraceptive use is associated with an increased risk for Chlamydia infection. However, prior studies inadequately account for potential differences in sexual behavior between users of DMPA and users of other contraceptive methods. In this study we compare sexual risk-taking behavior in women using DMPA to women using oral contraceptive pills (OCP) to assess risk of Chlamydia trachomatis infection. Methods: In this cross-sectional study of 630 reproductive-aged women seeking routine gynecologic care (449 OCP and 181 DMPA users) sexual risk-taking was evaluated by use of the Safe Sex Behavior Questionnaire, a validated measure of sexual behaviors and attitudes...
2017: Contraception and Reproductive Medicine
https://www.readbyqxmd.com/read/29198180/converging-epidemics-of-sexually-transmitted-infections-and-bacterial-vaginosis-in-southern-african-female-adolescents-at-risk-of-hiv
#16
Shaun L Barnabas, Smritee Dabee, Jo-Ann S Passmore, Heather B Jaspan, David A Lewis, Shameem Z Jaumdally, Hoyam Gamieldien, Lindi Masson, Etienne Muller, Venessa D Maseko, Nonhlanhla Mkhize, Zizipho Mbulawa, Anna-Lise Williamson, Clive M Gray, Thomas J Hope, Francesca Chiodi, Janan Dietrich, Glenda Gray, Linda-Gail Bekker
Adolescents in Africa are at high risk for HIV infection, other sexually transmitted infections (STIs) and bacterial vaginosis (BV). Since behavior and burden of STIs/BV may influence HIV risk, behavioral risk factors and prevalence of STIs/BV were compared in HIV-seronegative adolescent females (n = 298; 16-22 years) from two South African communities (Soweto and Cape Town). STIs ( Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vaginalis, Mycoplasma genitalium, herpes simplex virus (HSV)-1, HSV-2, Treponema pallidum, and Haemophilus ducreyi) were detected by multiplex polymerase chain reaction, human papillomavirus (HPV) by Roche Linear Array, and BV by Nugent scoring...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/29198179/screening-for-chlamydia-trachomatis-and-neisseria-gonorrhoeae-infection-among-asymptomatic-men-who-have-sex-with-men-in-bangkok-thailand
#17
Sarika Pattanasin, Eileen F Dunne, Punneeporn Wasinrapee, Jaray Tongtoyai, Wannee Chonwattana, Anuwat Sriporn, Pikunchai Luechai, Philip A Mock, Anupong Chitwarakorn, Timothy H Holtz, Marcel E Curlin
We report positivity rates of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infection at each anatomic site among asymptomatic men who have sex with men (MSM). We calculated the number needed to screen (NNS) to detect CT and NG infection at each anatomic site. From 2006 to 2010, we enrolled Thai MSM, age ≥ 18 years into the Bangkok MSM Cohort Study. Participants underwent physical examination and had rectal, urethral, and pharyngeal screening for CT and NG infection using nucleic acid amplification tests (NAATs)...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/29197401/neglected-zoonotic-agents-in-cattle-abortion-tackling-the-difficult-to-grow-bacteria
#18
Sara Vidal, Kristel Kegler, Gilbert Greub, Sebastien Aeby, Nicole Borel, Mark P Dagleish, Horst Posthaus, Vincent Perreten, Sabrina Rodriguez-Campos
BACKGROUND: Coxiella burnetii, Chlamydia abortus and Leptospira spp. are difficult to grow bacteria that play a role in bovine abortion, but their diagnosis is hampered by their obligate intracellular lifestyle (C. burnetii, C. abortus) or their lability (Leptospira spp.). Their importance is based on the contagious spread in food-producing animals, but also as zoonotic agents. In Switzerland, first-line routine bacteriological diagnostics in cattle abortions is regulated by national law and includes only basic screening by staining for C...
December 2, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29196272/chlamydia-trachomatis-antibody-detection-in-home-collected-blood-samples-for-use-in-epidemiological-studies
#19
B M Hoenderboom, E F van Ess, I V F van den Broek, I H M van Loo, Hoebe Cjpa, S Ouburg, S A Morré
Capillary blood collected in serum tubes was subjected to centrifugation delay while stored at room temperature. Chlamydia trachomatis (CT) IgG concentrations in aliquoted serum of these blood samples remained stable for seven days after collection. CT IgG concentrations can reliably be measured in mailed blood samples in epidemiological studies.
November 28, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/29193865/maternal-chlamydia-infection-during-pregnancy-among-younger-mothers-and-risk-of-gastroschisis-in-singleton-offspring
#20
Tessa Horslev, José N Binongo, Vijaya Kancherla
BACKGROUND: Prevalence of gastroschisis has been increasing in the United States (US) since 1980s. Genital infection with Chlamydia has also been increasing in prevalence, particularly among younger women. The etiology of gastroschisis is unknown. Ongoing research suggests multiple causal factors may be involved, including Chlamydia infection in mothers during pregnancy. METHODS: Using birth certificate data from 2014 US vital records, we conducted a population-based case-control study to examine the association between prenatal Chlamydia exposure in young women (16-25 years of age) and gastroschisis in singleton offspring...
November 30, 2017: Birth Defects Research
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