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https://www.readbyqxmd.com/read/28523273/novel-treponema-pallidum-recombinant-antigens-for-syphilis-diagnostics-current-status-and-future-prospects
#1
REVIEW
Aleksey Kubanov, Anastassia Runina, Dmitry Deryabin
The recombinant protein technology considerably promoted the development of rapid and accurate treponema-specific laboratory diagnostics of syphilis infection. For the last ten years, the immunodominant recombinant inner membrane lipoproteins are proved to be sensitive and specific antigens for syphilis screening. However, the development of an enlarged T. pallidum antigen panel for diagnostics of early and late syphilis and differentiation of syphilis stages or cured syphilis remains as actual goal of multidisciplinary expertise...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28507905/gastric-syphilis
#2
Jianfei Cai, Danian Ji, Jian-Long Guan
Syphilis is a chronic systemic infectious disease. Gastric involvement is uncommon. We report of a 55-year-old female patient with a history of epigastric pain and a diagnosis of Syphilis confirmed by main clinical symptoms, tolulized red unheated serum test(TRUST) and treponema pallidum hemagglutination assay(TPHA). At the same time, we still reported gastric involvement about syphilis in this patient with gastroscopy and pathology.
2017: IDCases
https://www.readbyqxmd.com/read/28499407/early-neurosyphilis-presenting-with-facial-palsy-and-an-oral-ulcer-in-a-patient-who-is-human-immunodeficiency-virus-positive-a-case-report
#3
Evangeline Njiru, Jamil Abdulkadir, Zipporah Kamuren, Gabriel Kigen
BACKGROUND: Neurosyphilis is the tertiary stage of Treponema pallidum infection that involves the central nervous system, which occurs within days or weeks after an initial syphilis infection, especially in immunocompromised patients. The diagnosis of neurosyphilis is quite challenging as it is uncommon and often presents with obscure symptoms since any organ system may be involved. CASE PRESENTATION: We describe a case of a 40-year-old African man who is human immunodeficiency virus positive with early neurosyphilis who presented with a stiff neck, headache, confusion, restlessness, and a left-sided chest pain; he did not respond to an empiric treatment of ceftriaxone and fluconazole for meningitis, and tramadol for headache...
May 13, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28499290/molecular-typing-of-syphilis-causing-strains-among-human-immunodeficiency-virus-positive-patients-in-antwerp-belgium
#4
Lenka Mikalová, Linda Grillová, Kara Osbak, Michal Strouhal, Chris Kenyon, Tania Crucitti, David Šmajs
Centers for Disease Control and Prevention and sequencing-based treponeme typing was used to analyze 72 blood samples, collected from human immunodeficiency virus and syphilis co-infected patients during 2014 to 2015 in Antwerp, Belgium. Twenty-nine (40.3%) isolates were polymerase chain reaction positive for Treponema pallidum, and all tested were macrolide-resistant. Four genotypes were identified by sequencing-based typing including two new genotypes, U4NR8 and SU9R8, whereas enhanced Centers for Disease Control and Prevention typing revealed 7 subtypes...
June 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28499289/maternal-syphilis-an-independent-risk-factor-for-mother-to-infant-human-immunodeficiency-virus-transmission
#5
Aarti Kinikar, Nikhil Gupte, Jayalakshmi Bhat, Renu Bharadwaj, Vandana Kulkarni, Ramesh Bhosale, Katherine N McIntire, Vidya Mave, Nishi Suryavanshi, Sandesh Patil, Robert Bollinger, Amita Gupta
Syphilis is associated with increased human immunodeficiency virus acquisition and sexual transmission; we examined impact on human immunodeficiency virus mother-to-child transmission among mother-infant pairs enrolled in the India Six-Week Extended-Dose Nevirapine study. Maternal syphilis, diagnosed serologically using Venereal Disease Research Laboratory titer plus Treponema Pallidum Hemagglutination Assay, was associated with 2.5-fold greater risk.
June 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28499236/putative-periodontal-pathogens-in-the-subgingival-plaque-of-sudanese-subjects-with-aggressive-periodontitis
#6
N T Hashim, G J Linden, L Winning, M E Ibrahim, B G Gismalla, F T Lundy, I A El Karim
BACKGROUND AND OBJECTIVES: There has been limited study of the bacterial species associated with aggressive periodontitis (AgP) in high-risk populations in Africa. The aim of this study was to investigate and quantify the presence of four putative periodontal pathogens in the subgingival plaque of Sudanese subjects with AgP. A secondary aim was to investigate the effect of varying the detection threshold on the reported prevalence of the bacterial species investigated. MATERIALS AND METHODS: Subgingival plaque samples were collected from AgP cases (n=73) and healthy controls (n=71)...
April 27, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28498507/effect-of-surgical-periodontal-treatment-associated-to-antimicrobial-photodynamic-therapy-on-chronic-periodontitis-a-randomized-controlled-clinical-trial
#7
Sérgio H L Martins, Arthur B Novaes, Mario Taba, Daniela B Palioto, Michel R Messora, Danilo M Reino, Sérgio L S Souza
AIM: This randomized controlled clinical trial evaluated the effects of an adjunctive single application of antimicrobial photodynamic therapy (aPDT) in Surgical Periodontal Treatment (ST) in patients with severe chronic periodontitis (SCP). MATERIAL AND METHODS: In a split-mouth design, 20 patients with SCP were treated with aPDT+ST (Test Group, TG) or ST only (Control Group, CG). aPDT was applied in a single episode, using a diode laser and a phenothiazine photosensitizer...
May 12, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28494237/microbial-vertical-transmission-during-human-pregnancy
#8
REVIEW
Nitin Arora, Yoel Sadovsky, Terence S Dermody, Carolyn B Coyne
Congenital infections with pathogens such as Zika virus, Toxoplasma gondii, Listeria monocytogenes, Treponema pallidium, parvovirus, HIV, varicella zoster virus, Rubella, Cytomegalovirus, and Herpesviruses are a major cause of morbidity and mortality worldwide. Despite the devastating impact of microbial infections on the developing fetus, relatively little is known about how pathogens associated with congenital disease breach the placental barrier to transit vertically during human pregnancy. In this Review, we focus on transplacental transmission of pathogens during human gestation...
May 10, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28489855/haemophilus-ducreyi-dna-is-detectable-on-the-skin-of-asymptomatic-children-flies-and-fomites-in-villages-of-papua-new-guinea
#9
Wendy Houinei, Charmie Godornes, August Kapa, Sascha Knauf, Eric Q Mooring, Camila González-Beiras, Ronald Watup, Raymond Paru, Paul Advent, Sivauk Bieb, Sergi Sanz, Quique Bassat, Stanley M Spinola, Sheila A Lukehart, Oriol Mitjà
BACKGROUND: Haemophilus ducreyi and Treponema pallidum subsp. pertenue are major causes of leg ulcers in children in Africa and the Pacific Region. We investigated the presence of DNA (PCR positivity) from these bacteria on asymptomatic people, flies, and household linens in an endemic setting. METHODOLOGY/PRINCIPAL FINDINGS: We performed a cross-sectional study in rural villages of Lihir Island, Papua New Guinea during a yaws elimination campaign. Participants were asymptomatic subjects recruited from households with cases of leg ulcers, and from households without cases of leg ulcers...
May 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28484511/reducing-risks-of-transfusion-transmitted-infections-in-a-resource-limited-hospital-based-blood-bank-the-case-of-the-yaound%C3%A3-university-teaching-hospital-cameroon
#10
C T Tagny, A Ndoumba, S Laperche, E Murphy, D Mbanya
BACKGROUND AND OBJECTIVES: Although interest in assessing risk of TTIs, very few trends in blood safety epidemiological data from resource-limited blood services are reported in the literature. This analysis aims at reporting trends in seroprevalences of TTIs in blood donations in the Yaoundé University Teaching Hospital (UTH) from 2011 to 2015 and to describe reasons for these changes. MATERIALS AND METHODS: All donations of 2015 were tested for HIV 1&2 antibodies and the P24 antigen, HBsAg, HCV antibody and the Treponema pallidum antibody...
August 2016: ISBT Science Series
https://www.readbyqxmd.com/read/28484210/identification-of-tp0751-pallilysin-as-a-treponema-pallidum-vascular-adhesin-by-heterologous-expression-in-the-lyme-disease-spirochete
#11
Wei-Chien Andrew Kao, Helena Pětrošová, Rhodaba Ebady, Karen V Lithgow, Pablo Rojas, Yang Zhang, Yae-Eun Kim, Yae-Ram Kim, Tanya Odisho, Nupur Gupta, Annette Moter, Caroline E Cameron, Tara J Moriarty
Treponema pallidum subsp. pallidum, the causative agent of syphilis, is a highly invasive spirochete pathogen that uses the vasculature to disseminate throughout the body. Identification of bacterial factors promoting dissemination is crucial for syphilis vaccine development. An important step in dissemination is bacterial adhesion to blood vessel surfaces, a process mediated by bacterial proteins that can withstand forces imposed on adhesive bonds by blood flow (vascular adhesins). The study of T. pallidum vascular adhesins is hindered by the uncultivable nature of this pathogen...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28476771/signature-of-microbial-dysbiosis-in-periodontitis
#12
Vincent Meuric, Sandrine Le Gall-David, Emile Boyer, Luis Acuña-Amador, Bénédicte Martin, Shao Bing Fong, Frederique Barloy-Hubler, Martine Bonnaure-Mallet
Periodontitis is driven by a disproportionate host inflammatory immune response induced by an imbalance in the composition of oral bacteria. It instigates microbial dysbiosis along with failed resolution of the chronic destructive inflammation.The objective of this study is to identify microbial signatures for health and chronic periodontitis at the genus level and to propose a model of dysbiosis including the calculation of bacterial ratios. DESIGN AND METHODS: Published sequencing data obtained from several different studies (196 sub-gingival samples from patients with chronic periodontitis and 422 sub-gingival samples from healthy subjects) were pooled and submitted to a new microbiota analysis using the same VAMPS (Visualization and Analysis of Microbial Population Structures) analysis pipeline to identify microbiota specific to health and disease...
May 5, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28456488/secondary-syphilis-mimicking-malignancy-a-case-report-and-review-of-literature
#13
Claudio Cerchione, Alberto Enrico Maraolo, Luana Marano, Novella Pugliese, Davide Nappi, Grazia Tosone, Ilaria Cimmino, Imma Cozzolino, Vincenzo Martinelli, Fabrizio Pane, Marco Picardi
A 56-year-old man developed disseminate lymphadenopathies, associated with hepato-splenomegaly, fever, nocturnal sweating and weight loss. Imaging studies in particular FDG-PET/CT raised the suspicion of a malignant disease. But blood flow cytometry assay for B/T cell clonality was negative and fine-needle biopsy of enlarged laterocervical lymph node showed a not specific "reactive hyperplasia". Four months later, the patient developed a non-itching rash; since a further anamnestic investigation revealed an history of high-risk sexual intercourse, the patient underwent serological tests for Treponema pallidum that were positive at high titer, after a first negative screening...
April 26, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28453906/oral-treponeme-major-surface-protein-sequence-diversity-and-distributions-within-periodontal-niches
#14
Meng You, Yuki Chan, Donnabella C Lacap-Bugler, Yong-Biao Huo, Wenling Gao, W Keung Leung, Rory M Watt
Treponema denticola and other species (phylotypes) of oral spirochetes are widely-considered to play important etiological roles in periodontitis and other oral infections. The major surface protein (Msp) of T. denticola is directly implicated in several pathological mechanisms. Here, we have analyzed msp sequence diversity across 68 strains of oral phylogroup 1 and 2 treponemes; including reference strains of T. denticola, Treponema putidum, Treponema medium, 'Treponema vincentii', and 'Treponema sinensis'...
April 28, 2017: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/28446129/novel-predictors-of-neurosyphilis-among-hiv-negative-syphilis-patients-with-neurological-symptoms-an-observational-study
#15
Yao Xiao, Man-Li Tong, Li-Li Liu, Li-Rong Lin, Mei-Jun Chen, Hui-Lin Zhang, Wei-Hong Zheng, Shu-Lian Li, Hui-Ling Lin, Zhi-Feng Lin, Hui-Qin Xing, Jian-Jun Niu, Tian-Ci Yang
BACKGROUND: Known predictors of neurosyphilis were mainly drawn from human immunodeficiency virus (HIV)-infected syphilis patients, which may not be applicable to HIV-negative populations as they have different characteristics, particularly those with neurological symptoms. This study aimed to identify novel predictors of HIV-negative symptomatic neurosyphilis (S-NS). METHODS: From June 2005 to June 2015, 370 HIV-negative syphilis patients with neurological symptoms were recruited, consisting of 191 S-NS patients (including 123 confirmed neurosyphilis and 68 probable neurosyphilis patients) and 179 syphilis/non-neurosyphilis (N-NS) patients...
April 26, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28440740/biomarkers-and-bacteria-around-implants-and-natural-teeth-in-the-same-individuals
#16
Önder Gürlek, Pınar Gümüş, Christopher J Nile, David F Lappin, Nurcan Buduneli
AIM: This cross-sectional study assessed cytokine levels in peri-implant crevicular fluid (PICF)/ gingival crevicular fluid (GCF) and a selection of subgingival/submucosal plaque bacteria from clinically healthy or diseased sites in the same individuals. MATERIAL AND METHODS: Samples from 97 implants/teeth (58 implants: 19 healthy, 20 mucositis, 19 peri-implantitis; 39 natural teeth: 19 healthy, 12 gingivitis, 8 periodontitis) in 15 systemically healthy patients were investigated by immunoassay, real-time PCR...
April 25, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28435379/shifts-of-subgingival-bacterial-population-after-nonsurgical-and-pharmacological-therapy-of-localized-aggressive-periodontitis-followed-for-1-year-by-ion-torrent-pgm-platform
#17
Giuseppina Campisciano, Annamaria Toschetti, Manola Comar, Rosanna Di Taranto, Federico Berton, Claudio Stacchi
The possibility of targeting the hypervariable region V3 of the 16S rRNA gene using Ion Torrent Personal Genome Machine (PGM) could provide a complete analysis of subgingival plaque samples, potentially able to identify microbiological species missed by culture-based methods. A 16-year-old female smoker patient, affected by localized aggressive periodontitis, underwent a full-mouth disinfection protocol and was inserted in a 3-month recall program. Microbiological samples were collected at baseline and at 30, 100, 365 days follow-up and analyzed by Ion Torrent PGM...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28432950/effects-of-chlortetracycline-and-copper-on-tetracyclines-and-copper-resistance-genes-and-microbial-community-during-swine-manure-anaerobic-digestion
#18
Rui Wang, Meixue Chen, Feng Feng, Junya Zhang, Qianwen Sui, Juan Tong, Yuansong Wei, Dongbin Wei
As antibiotic and heavy metals are over used in the livestock industry, animal manure is a reservoir of antibiotic resistance genes (ARGs). Anaerobic digestion has been reported to have the potential to reduce ARGs. However, few studies investigated whether reduction of ARGs would be affected by different external pressures including antibiotics and heavy metals during anaerobic digestion. The purpose of this study was thus to investigate effects of both chlortetracycline (CTC) and Cu on reduction of ARGs, heavy metal resistance genes (HMRGs) and mobile genetic elements (MGEs) during the swine manure anaerobic digestion...
March 25, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28428838/a-national-strategic-plan-for-reducing-the-burden-of-sexually-transmitted-infections-in-israel-by-the-year-2025
#19
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...
2017: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/28414665/a-case-of-early-neurosyphilis
#20
M Walker, R Wisler, J Simmons, A Johnson
INTRODUCTION: Neurosyphilis is an infection of the central nervous system by Treponema pallidum, which can occur after the initial syphilis infection. Although commonly associated with late stage disease, patients with early neurosyphilis may present with acute syphilitic meningitis, meningovascular syphilis, or uveitis. CASE: A 28 year old man with a past medical history of HIV (CD4 364);, and recent diagnosis of uveitis presented to the Emergency Department with a positive RPR result...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
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