Read by QxMD icon Read

Treponema pallidum

Caroline E Cameron
Syphilis, caused by the spirochete Treponema pallidum subspecies pallidum, continues to be a prevalent disease in low- and middle-income countries, and has re-emerged in key populations, including men who have sex with men, in high-income nations. The rising number of cases shows syphilis elimination will require augmentation of public health screening and treatment campaigns with syphilis vaccine development and implementation initiatives. Optimal vaccine candidates, deciphered from careful consideration of the pathogenic mechanisms employed by T...
March 9, 2018: Sexually Transmitted Diseases
Anteneh Amsalu, Getachew Ferede, Demissie Assegu
BACKGROUND: Despite availability of effective treatment and the implementation of focused antenatal care (ANC), still the prevalence of syphilis persists in Ethiopia. Yet, data is not found in southern Ethiopia. Therefore, this study was conducted to determine the seroprevalence and associated factors of syphilis among pregnant women in Yiregalem Hospital, Southern Ethiopia. METHODS: A cross-sectional study was conducted among pregnant women from October 2015 to August 2016...
March 6, 2018: BMC Infectious Diseases
Lisa Becherer, Mohammed Bakheit, Sieghard Frischmann, Silvina Stinco, Nadine Borst, Roland Zengerle, Felix von Stetten
A variety of real-time detection techniques for LAMP based on the change in fluorescence intensity during DNA amplification enable simultaneous detection of multiple targets. However these techniques depend on fluorogenic probes containing target-specific sequences. That complicates the adaption to different targets leading to time-consuming assay optimization. Here, we present the first universal real-time detection technique for multiplex LAMP. The novel approach allows simple assay design and is easy to implement for various targets...
March 6, 2018: Analytical Chemistry
Margarita N German, Kristina A Matkowskyj, Robert J Hoffman, Parul D Agarwal
While the incidence of syphilis has been persistently on the rise in the United States, hepatitis as a complication of early syphilis is relatively uncommon. We present a case of a 51-year-old homosexual, HIV-positive male who presented with acute cholestatic hepatitis with a predominantly elevated alkaline phosphatase. After lab studies and imaging were unrevealing, a liver biopsy was performed that showed expanded portal tracts with a predominantly lymphoplasmacytic infiltrate and prominent bile ductular proliferation with periductal neutrophils...
March 2, 2018: Human Pathology
Yukiko Komeno, Yasunori Ota, Tomohiko Koibuchi, Yoichi Imai, Kuniko Iihara, Tomiko Ryu
BACKGROUND Syphilis is a sexually transmitted disease caused by the pathogen Treponema pallidum. Prevalence continues to rise, especially among men who have sex with men (MSM). Due to changes in patterns of sexual activity, manifestations of the disease are highly variable. CASE REPORT A 27-year-old male visited the hospital for a low-grade fever and tender 5-cm mass in the right side of his neck. His right tonsil was swollen and covered with a white coating. Levofloxacin was prescribed, but ineffective. The patient's levels of liver function enzymes increased gradually...
March 4, 2018: American Journal of Case Reports
Li-Rong Lin, Yao Xiao, Wei Liu, Yu-Yan Chen, Xiao-Zhen Zhu, Zheng-Xiang Gao, Kun Gao, Man-Li Tong, Hui-Lin Zhang, Shu-Lian Li, Hui-Ling Lin, Wen-Dong Li, Xian-Ming Liang, Yong Lin, Li-Li Liu, Tian-Ci Yang
BACKGROUND: The inflammasome responses in Treponema pallidum infection have been poorly understood to date. This study aimed to investigate the expression of the nucleotide-binding leucine-rich receptor protein 3 (NLRP3) inflammasome in the development of tissue inflammation in rabbits infected with T. pallidum. METHODS: Forty-five rabbits were randomly assigned to a blank group or an infection group, and the latter was divided into no benzathine penicillin G (BPG) and BPG treatment subgroups...
March 1, 2018: BMC Infectious Diseases
Zhenyan Wang, Li Liu, Yin-Zhong Shen, Ren-Fang Zhang, Tang-Kai Qi, Yang Tang, Wei Song, Jun Chen, Hongzhou Lu
Neurosyphilis (NS) is an important component of central nervous system diseases among HIV-infected patients. However, its characteristics are not very clear. A retrospective analysis of clinical and laboratory findings was performed in 92 NS patients with HIV infection from a tertiary hospital in Shanghai, China. The patients had a median age of 38 years and a median CD4 count of 198 cells/μL. In all, 44.6% (41/92) were diagnosed as asymptomatic NS (ANS), 23.9% (22/92) as syphilitic meningitis, 17.4% (16/92) as cerebrovascular NS, and 14...
March 2018: Medicine (Baltimore)
Celia Bórquez, Ismelda Lobato, Paola Gazmuri, Romina Hurtado, Valerie Llanqui, Mauricio Vivanco, Teresa Reyes, Hilda Villanueva, Katherine Salgado, M Angélica Martínez, Juan Vega
BACKGROUND: The risk groups for sexual transmitted diseases (STDs) are sex workers, drug addicts, young people in early sexual initiation, and population in prison. AIM: To determine the prevalence of HIV, Treponema pallidum and hepatitis B Virus (HBV) in male inmates at the Preventive Detention Center (CDP) of Arica. METHODS: The study was conducted in 140 inmates, with informed consent. Epidemiological survey and blood sampling was conducted...
October 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
Rabia Ghafoor, Muhammad Irfan Anwar
Syphilis is a venereal disease caused by treponema pallidum, historically known as "great mimicker" because of its variable presentations. Secondary syphilis usually presents with maculopapular or papulosquamous rash. Rare manifestations include papulonodular, annular and lichenoid lesions. Nodules are usually found in benign tertiary syphilis. We present a case of a young boy who presented with five months' history of nodular skin lesions and hoarseness of voice. Venereal disease research laboratory (VDRL) was initially negative owing to prozone phenomenon...
March 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Darko Breitenfeld, Davor Kust, Tomislav Breitenfeld, Marin Prpić, Marko Lucijanić, Davor Zibar, Vedran Hostić, Maja Franceschi, Ante Bolanča
Syphilis is a sexually transmitted, systemic disease caused by the spirochete bacterium Treponema pallidum. The most common mechanism of transmission is sexual intercourse. Although there are several hypotheses, the exact origin of the disease remains unknown. Newly published evidence suggests that the hypothesis supporting the theory of the American origin of the disease is the valid one. Among 1500 analyzed pathographies of composers and musicians, data on ten Anglo-American composers and jazz musicians having suffered from neurosyphilis (tertiary stage of the disease) were extracted for this report...
September 2017: Acta Clinica Croatica
R-S de Andrade, E-M de Freitas, B-A Rocha, E-S Gusmão, M-R-M Filho, H-M Júnior
BACKGROUND: Syphilis is a sexually transmitted disease caused by Treponema pallidum. However, there are of hematogenic and vertical transmission. All health care professionals must be aware of the manifestations of this condition, such as oral lesions. OBJECTIVES: This study to analyze and compare four clinical cases of syphilis that were diagnosed based on lesions in the oral cavity with published literature. MATERIAL AND METHODS: Four patients with a confirmed sorologic and clinical diagnosis of syphilis were examined, confirmated from manifestation of oral lesions together with analysis of serological laboratory tests and histopathological analyses...
February 24, 2018: Medicina Oral, Patología Oral y Cirugía Bucal
Lorenzo Giacani, Giulia Ciccarese, Christian Puga-Salazar, Ivano Dal Conte, Laura Colli, Marco Cusini, Stefano Ramoni, Sergio Delmonte, Antonietta D'Antuono, Valeria Gaspari, Francesco Drago
BACKGROUND: Although syphilis rates have been relatively high in Italy for over 15 years, no data on the molecular types of Treponema pallidum subsp. pallidum (T. pallidum) circulating in this country are yet available. Likewise, no data exist on how widespread is resistance to macrolide or tetracycline antibiotics in these strains. Such data would however promote comprehensive studies on the molecular epidemiology of syphilis infections in Italy and inform future interventions aiming at syphilis control in this and other European countries...
October 10, 2017: Sexually Transmitted Diseases
Hope H Biswas, Rilene A Chew Ng, Erin L Murray, Joan M Chow, Juliet E Stoltey, James P Watt, Heidi M Bauer
BACKGROUND: Congenital syphilis (CS), the transmission of Treponema pallidum from mother to fetus during pregnancy, can cause adverse birth outcomes. During 2012-2014, the CS rate in California increased >200% from 6.6 to 20.3 cases per 100,000 live births. Our objectives were to identify characteristics associated with delivering an infant with CS and missed opportunities for prevention among syphilis-infected pregnant women in California. METHODS: We linked California Department of Public Health syphilis surveillance records from women aged 15-45 years - diagnosed during March 13, 2012-December 31, 2014 - to birth records...
January 4, 2018: Sexually Transmitted Diseases
H Kassem Youssef, A Blind, F Chouta Ngaha, B Drenou, H Nojavan, C Michel
INTRODUCTION: Syphilis is a sexually transmitted disease that can affect numerous organs in its secondary or tertiary stages. We describe a case of secondary syphilis with pulmonary involvement and we present a literature review. PATIENTS AND METHODS: A 69-year-old male patient was admitted to hospital for dyspnoea and extended papular exanthema with palmoplantar involvement. The serological test for syphilis was positive. Ocular examination showed bilateral papillitis and retinal haemorrhage...
February 17, 2018: Annales de Dermatologie et de Vénéréologie
Eva Björnelius, Britta Krynitz
Syphilis - an old imitator is back on the stage Syphilis is one of the oldest sexually transmitted infections and caused by the spirochete Treponema pallidum. The incubation time is 10-90 days and patients are contagious for approximately one year. In Sweden all blood donors and pregnant women are screened. By law, individuals with early syphilis (primary and secondary stages) are reported and contact tracing is performed. The syphilis incidence is increasing in Europe, USA and many other countries. The main drivers are men having sex with men...
February 15, 2018: Läkartidningen
Christoph D Spinner, Christoph Boesecke, Cornelius Jordan, Christoph Wyen, Tim Kümmerle, Gaby Knecht, Stefan Scholten, Alexander Zink, Ivanka Krznaric, Sebastian Noe
PURPOSE: Sexually transmitted infections (STIs) occur frequently in risk populations. Hereby, the role of screening-programmes remains controversial. Our study aimed to determine the prevalence of STI infections in HIV-positive men-who-have-sex-with-men (MSM). METHODS: We enrolled asymptomatic, HIV-MSM in a prospective cross-sectional study from February to August 2016 at seven German HIV-centres. All subjects were screened for Treponema-pallidum (TP) and hepatitis-B/C-infection...
February 19, 2018: Infection
Xiaohong Zhang, Tie Zhao, Tiebing Zeng, Ning Wu, Yongjian Xiao, Shuangquan Liu, Jian Yu, Chuanhao Jiang, Lin Gan, Meixia Deng, Xi Luo, Feijun Zhao
The present study aimed to evaluate the immune effect of intramuscular primary immunization by the nucleic acid vaccine pcDNA/glycerophosphodiester phosphodiesterase-interleukin-2 (pcDNA/Gpd-IL-2) and enhanced immunization 2 weeks later with the combination of mucosal adjuvant CpG-oligodeoxynucleotides (ODN) and Gpd-IL-2 recombinant protein on skin infection caused by Treponema pallidum (Tp) in New Zealand rabbits. At week 8 following immunization, MTT assay was used to detect spleen cell proliferation, while enzyme-linked immunosorbent assay was performed to detect the cytokine and secretory immunoglobulin A (SIgA) levels...
March 2018: Experimental and Therapeutic Medicine
Michael Marks, Oriol Mitjà, Christian Bottomley, Cynthia Kwakye, Wendy Houinei, Mathias Bauri, Paul Adwere, Abdul A Abdulai, Fredrick Dua, Laud Boateng, James Wangi, Sally-Ann Ohene, Regina Wangnapi, Shirley V Simpson, Helen Miag, Kennedy K Addo, Laud A Basing, Damien Danavall, Kai H Chi, Allan Pillay, Ronald Ballard, Anthony W Solomon, Cheng Y Chen, Sibauk V Bieb, Yaw Adu-Sarkodie, David C W Mabey, Kingsley Asiedu
BACKGROUND: A dose of 30 mg/kg of azithromycin is recommended for treatment of yaws, a disease targeted for global eradication. Treatment with 20 mg/kg of azithromycin is recommended for the elimination of trachoma as a public health problem. In some settings, these diseases are co-endemic. We aimed to determine the efficacy of 20 mg/kg of azithromycin compared with 30 mg/kg azithromycin for the treatment of active and latent yaws. METHODS: We did a non-inferiority, open-label, randomised controlled trial in children aged 6-15 years who were recruited from schools in Ghana and schools and the community in Papua New Guinea...
February 15, 2018: Lancet Global Health
Angel A Noda, Linda Grillová, Reto Lienhard, Orestes Blanco, Islay Rodríguez, David Šmajs
OBJECTIVES: Bejel, caused by Treponema pallidum subsp. endemicum (TEN), was until now considered as a non-venereal disease endemic in areas with hot and dry climates. This study has identified TEN in clinical samples from Cuban patients previously diagnosed with syphilis. METHODS: We performed sequencing-based molecular typing on 92 samples from Cuban patients diagnosed with syphilis. Moreover, to differentiate T. pallidum subspecies, Multi-Locus Sequence Analysis (MLSA) was designed, and applied to suspicious samples...
February 15, 2018: Clinical Microbiology and Infection
J Manuel Bello-López, Cristina Castañeda-García, Celerino Muñoz-Estrada, Antonio José Machorro-Peréz
INTRODUCTION: Quality control for the detection of infectious markers in blood banks is a necessary activity to ensure the accuracy of donor screening results. Considering that in Mexico blood safety is one of the goals of the National Action Programs, it is essential to evaluate banks through an External Quality Control Program. OBJECTIVE: To analyze one of the evaluations that showed the greatest participation (2014-2/lot46) of banks in the Mexican Republic in the detection of transfusion-transmitted diseases...
January 11, 2018: Transfusion and Apheresis Science
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"