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Treponema pallidum

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https://www.readbyqxmd.com/read/28714113/secondary-syphilis-primarily-presenting-with-multiple-nodules-on-the-scalp-case-report-and-published-work-review
#1
Fan Li, Tingting Wang, Lin Wang
Syphilis, a sexually transmitted disease caused by Treponema pallidum, manifests with a broad spectrum of clinical presentations that usually involves skin. Nodular secondary syphilis occurs rarely, and mostly manifests as disseminated papulonodules or plaques over the trunk and limbs. We report an extremely rare case of nodular secondary syphilis that primarily presented with multiple nodules on the scalp, resembling Rosai-Dorfman disease or cutaneous malignant metastasis. Immunohistochemistry confirmed T...
July 17, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28712508/health-care-importance-of-treponema-pallidum-chagas-disease-and-human-immunodeficiency-virus-1-among-amerindians-of-argentina-an-observational-study
#2
María E Eirin, Cecilia M Delfino, Williams R Pedrozo, Richard Malan, Alberto Puca, Ana M De Rissio, Rogelio D Espejo, María L Gallo Vaulet, Marcelo Rodríguez Fermepin, Mirna M Biglione, Carolina A Berini
The objective of this study was to estimate the prevalence of Treponema pallidum, Trypanosoma cruzi and Human immunodeficiency virus 1 (HIV-1) in five Amerindian populations of Argentina. A retrospective study was conducted among 857 Amerindian populations (112 Kollas, 298 Mbyá-guaraníes, 79 Sagua Huarpes, 368 Wichis) from 2007 to 2010. Screening and confirmation of T. pallidum, T. cruzi and HIV-1 were performed. T. pallidum and T. cruzi infections were detected in all communities with an overall prevalence rate of 4...
July 13, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28668606/a-preliminary-study-on-the-proinflammatory-mechanisms-of-treponema-pallidum-outer-membrane-protein-tp92-in-human-macrophages-and-hmec-1-cells
#3
Xi Luo, Xiaohong Zhang, Tie Zhao, Tiebing Zeng, Wen Liu, Meixia Deng, Feijun Zhao
AIMS: To determine proinflammatory mechanisms of Treponema pallidum outer membrane protein Tp92 in the early syphilis infection in human macrophages and HMEC-1 cells. METHODS: Recombinant Tp92 protein was used to stimulate target human macrophages and HMEC-1 cells. PDTC (Pyrrolidinedithiocarbamic acid), SB202190 and Z-YVAD-FMK were used to block the MyD88/NF-κB, MAPKs/p38 and NLRP3/Caspase-1 pathway, respectively. TNF-α, IL-1β, IL-6, IL-8,NLRP3, casepase-1 were detected by ELISA or Western blot...
June 29, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28661234/an-evaluation-of-the-sd-bioline-hiv-syphilis-duo-test
#4
Jeffrey Holden, Joshua Goheen, Mary Jett-Goheen, Mathilda Barnes, Yu-Hsiang Hsieh, Charlotte A Gaydos
Many health agencies now recommend routine HIV and syphilis testing for pregnant women and most-at-risk populations such as men who have sex with men. With the increased availability of highly sensitive, low cost rapid point-of-care tests, the ability to meet those recommendations has increased, granting wider access to quick and accurate diagnoses. Using blood specimens collected from a Baltimore City Health Department (BCHD) sexually transmitted infection clinic, we evaluated the SD Bioline HIV/Syphilis Duo, a rapid test that simultaneously detects antibodies to HIV and syphilis and has the potential to further benefit clinics and patients by reducing costs, testing complexity, and patient wait times...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28661232/pulmonary-involvement-of-secondary-syphilis
#5
Yoshihiko Ogawa, Yuichiro Imai, Shingo Yoshihara, Hiroyuki Fujikura, Nobuyasu Hirai, Masatoshi Sato, Taku Ogawa, Kenji Uno, Kei Kasahara, Hisakazu Yano, Keiichi Mikasa
Pulmonary involvement in secondary syphilis is considered a rare occurrence; however, the number of cases has increased in the 2000s. This is likely due to the increased use of computed tomography scans and molecular diagnostic testing. We report a case of an HIV-positive man with pleural chest pain and bilateral subpleural nodules on chest computed tomography. His rapid plasma reagin and Treponema pallidum hemagglutination tests were positive, and the specimen of one of the pulmonary nodules obtained by transthoracic biopsy was positive for the polA gene of Treponema pallidum...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28660379/hiv-incidence-and-care-linkage-among-msm-first-time-testers-in-shenyang-china-2012-2014
#6
Jing Zhang, Jun-Jie Xu, Wei Song, Shi Pan, Zhen-Xing Chu, Qing-Hai Hu, Huan Yu, Xiang Mao, Yong-Jun Jiang, Wen-Qing Geng, Hong Shang, Ning Wang
HIV testing is the first step to the fulfillment of Treat as Prevention (TasP) and reaching the 90-90-90 goal in HIV control. However, there are still a large number of Men who have Sex with Men (MSM) have never been tested for HIV before, and little is known about the HIV incidence and care linkage among this population. A Mixed method was used to recruit MSM who had never tested for HIV before from January 2012 to December 2014 in Shenyang, China. Potential MSM participants were invited to attend the enrollment for HIV and syphilis testing at a general hospital-based voluntary counseling and test (VCT)...
June 30, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28614239/the-analyzation-and-clinical-evaluation-of-eclia-and-cmia-in-the-detection-of-treponema-pallidum
#7
COMPARATIVE STUDY
Jiansuo Zhou, Yongming Liang, Jie Zhang, Liyan Cui
To evaluate the clinical application value of electrochemiluminescence immunoassay analyzer (ECLIA) and chemiluminescent magnetic microparticle immunoassay (CMIA) in the detection of Treponema pallidum (TP).A total of 1225 patients in Peking University Third Hospital was enrolled from June 2014 to October 2014. ECLIA and CMIA were applied to detect the serum anti-TP. The positive rate was analyzed. RIBA was taken as a golden standard to evaluate the sensitivity, the specificity, the positive predictive value, the negative predictive value, and the accuracy of ECLIA and CMIA...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28614210/congenital-syphilis-of-bone-a-potential-mimicker-of-childhood-histiocytoses
#8
Youran Zou, Matthew A Marcus, C Guy Castles, Scott E Kilpatrick
Involvement of the skeletal system by congenital syphilis is well documented in the literature, chiefly in the form of radiologic studies, including periostitis, osteitis, and osteochondritis. Because congenital syphilis is generally recognized clinically, tissue biopsy is virtually never performed. Therefore, the histopathologic findings are less well documented and mostly exist in the older literature. We report herein the clinicoradiologic and pathologic features of a 2-month-old infant who initially presented with absence of left arm movement...
June 13, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28604483/laboratory-evaluation-of-a-smartphone-based-electronic-reader-of-rapid-dual-point-of-care-tests-for-antibodies-to-human-immunodeficiency-virus-and-treponema-pallidum-infections
#9
Sasha Herbst de Cortina, Claire C Bristow, Romney Humphries, Silver Keith Vargas, Kelika A Konda, Carlos F Caceres, Jeffrey D Klausner
BACKGROUND: Dual point-of-care tests for antibodies to human immunodeficiency virus (HIV) and Treponema pallidum allow for same-day testing and treatment and have been demonstrated to be cost-effective in preventing the adverse outcomes of HIV infection and syphilis. By recording and transmitting data as they are collected, electronic readers address challenges related to the decentralization of point-of-care testing. METHODS: We evaluated a smartphone-based electronic reader using 201 sera tested with 2 dual rapid tests for detection of antibodies to HIV and T...
July 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28590237/evaluation-of-self-collected-rectal-swabs-for-the-detection-of-bacteria-responsible-for-sexually-transmitted-infections-in-a-cohort-of-hiv-1-infected-patients
#10
Sophie Edouard, Catherine Tamalet, Hervé Tissot-Dupont, Philippe Colson, Amélie Ménard, Isabelle Ravaux, Catherine Dhiver, Christelle Tomei, Andreas Stein, Didier Raoult
PURPOSE: The standard approach to screening sexually transmitted infections (STIs) has often been restricted to urogenital specimens. Most current guidelines, however, also recommend testing extra-genital sites, including rectal locations, because asymptomatic rectal carriage of pathogens has often been reported. The aim of our study was to evaluate self-collected rectal swabs to screen bacterial STIs in HIV-infected patients in Marseille, France. METHODOLOGY: Between January 2014 and December 2015, 118 HIV-infected patients (93 males and 25 females) agreed to self-sample anal swabs for detection of bacterial STI...
June 8, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28586013/immunogenicity-and-immunoreactivity-of-tp0821-recombinant-protein-from-treponema%C3%A2-pallidum
#11
Ning Wu, Ni Li, Liping Hu, Jun He, Junhong Li, Feijun Zhao, Yimou Wu
Treponema pallidum (Tp) is responsible for invading reproductive organs and the skin in early stages, and involves almost all organs/systems at advanced stages. In the present study, screening of the dominant epitope fragment of the Tp outer membrane protein, Tp0821, was performed and the prokaryotic expression vector pQE32/Tp0821 was constructed. The denaturation and dialysis of rTp0821 were achieved through ultrasound, inclusion body washing and dissolution. Experiments in purified rTp0821‑immune New Zealand rabbits indicated that the recombinant proteins were of high immunogenicity, and the irritation led a marked humoral immune response in the New Zealand rabbits...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28580832/syphilis-gastritis-a-case-report
#12
Kuan Lai, Nicolas Pinto-Sander, Daniel Richardson, Shanshan Wei, Kang Zeng
Awareness of the spectrum of clinical manifestations of syphilis, especially uncommon changes, is essential for diagnosis and effective management of patients. A 48-year-old Han businessman presented to the ear, nose and throat surgeons with an eight-week history of epigastric pain, a four-week history of a widespread non-itchy rash including the scrotal skin and a one-week history of tinnitus and dizziness. On examination, he was afebrile with widespread lymphadenopathy and a maculopapular rash affecting his trunk and scrotum...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28567314/subacute-hypophysitis-with-panhypopituitarism-as-first-presentation-of-hiv-and-syphilis-coinfection
#13
Rute Alves, Margarida França
Infection by Treponema pallidum still represents a clinical challenge due to its various forms of presentation. HIV coinfection added diversity and changed the natural history of syphilis as a systemic infection. We present a rare case of subacute hypophysitis and panhypopituitarism due to an early active neurosyphilis in a previously unknown HIV coinfected patient.
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28559923/prevalence-and-risk-factors-associated-with-sexually-transmitted-infections-stis-among-women-of-reproductive-age-in-swaziland
#14
Themba G Ginindza, Cristina D Stefan, Joyce M Tsoka-Gwegweni, Xolisile Dlamini, Pauline E Jolly, Elisabete Weiderpass, Nathalie Broutet, Benn Sartorius
BACKGROUND: Sexually transmitted infections (STIs) remain an important public health problem with approximately half a billion new cases annually among persons aged 15-49 years. Epidemiological data on STIs among women of reproductive age in Swaziland are limited. The availability of epidemiological data on STIs and associated risk factors in this population is essential for the development of successful prevention, diagnosis and management strategies in the country. The study aimed to determine the prevalence and risk factors associated with STIs...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28523273/novel-treponema-pallidum-recombinant-antigens-for-syphilis-diagnostics-current-status-and-future-prospects
#15
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
#16
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
#17
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
#18
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
#19
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/28489855/haemophilus-ducreyi-dna-is-detectable-on-the-skin-of-asymptomatic-children-flies-and-fomites-in-villages-of-papua-new-guinea
#20
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
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