Results 31 to 40 of about 63,007 (294)

Syphilis and the host: multi-omic analysis of host cellular responses to Treponema pallidum provides novel insight into syphilis pathogenesis

open access: yesFrontiers in Microbiology, 2023
IntroductionSyphilis is a chronic, multi-stage infection caused by the extracellular bacterium Treponema pallidum ssp. pallidum. Treponema pallidum widely disseminates through the vasculature, crosses endothelial, blood–brain and placental barriers, and ...
Sean Waugh   +10 more
doaj   +1 more source

Mucopolysaccharidase of Treponema pallidum [PDF]

open access: yesInfection and Immunity, 1979
Treponema pallidum (Nichols strain) exhibited mucopolysaccharidase activity. Acidic mucopolysaccharides were broken down more rapidly by viable treponemes than by heat-inactivated treponemes or membrane filtrates of treponemal suspensions.
T. J. Fitzgerald, Russell C. Johnson
openaire   +3 more sources

Longitudinal TprK profiling of in vivo and in vitro-propagated Treponema pallidum subsp. pallidum reveals accumulation of antigenic variants in absence of immune pressure

open access: yesPLoS Neglected Tropical Diseases, 2021
Immune evasion by Treponema pallidum subspecies pallidum (T. pallidum) has been attributed to antigenic variation of its putative outer-membrane protein TprK.
Michelle J. Lin   +10 more
semanticscholar   +1 more source

Phylogenetic analysis of pbp genes in treponemes [PDF]

open access: yesInfection Ecology & Epidemiology, 2013
Background: β-Lactamases are the main cause of bacterial resistance to penicillin, cephalosporins, and related β-lactam compounds. The presence of the novel penicillin-binding protein (pbp) Tp47 in Treponema pallidum has been reported to be
Tejpreet Chadha   +1 more
doaj   +1 more source

Treponema pallidum Disrupts VE-Cadherin Intercellular Junctions and Traverses Endothelial Barriers Using a Cholesterol-Dependent Mechanism

open access: yesFrontiers in Microbiology, 2021
Treponema pallidum subspecies pallidum, the causative agent of syphilis, traverses the vascular endothelium to gain access to underlying tissue sites. Herein, we investigate the mechanisms associated with T.
K. Lithgow   +5 more
semanticscholar   +1 more source

Notes on syphilis vaccine development

open access: yesFrontiers in Immunology, 2022
The quest for a syphilis vaccine to provide protection from infection or disease began not long after the isolation of the first Treponema pallidum subspecies pallidum (T. pallidum) strain in 1912.
Noah Kojima   +3 more
doaj   +1 more source

Two Potential Syphilis Vaccine Candidates Inhibit Dissemination of Treponema pallidum

open access: yesFrontiers in Immunology, 2021
Syphilis, caused by the spirochete Treponema pallidum subspecies pallidum, continues to be a major public health problem worldwide. Recent increases in the number of syphilis cases, in addition to the lack of an efficient vaccine against T.
Man Xu   +7 more
semanticscholar   +1 more source

Hybrid cell lines producing monoclonal antibodies directed against Treponema [PDF]

open access: yes, 1985
Continuous hybrid cell lines for producing monoclonal antibodies directed against antigens of Treponema pallidum have been developed. The hybrid cell lines were established by fusing differentiated lymphoid cells primed with antigens of Treponema ...
Kettman, John R., Norgard, Michael V.
core   +1 more source

Yaws. [PDF]

open access: yes, 2014
Yaws is a non-venereal endemic treponemal infection caused by Treponema pallidum sub-species pertenue, a spirochaete bacterium closely related to Treponema pallidum ssp. pallidum, the agent of venereal syphilis.
Higgins, Stephen P   +3 more
core   +4 more sources

Multiplex nested polymerase chain reaction for Treponema pallidum using blood is more sensitive than using serum

open access: yesUniversa Medicina, 2018
Background Syphilis is a multistage disease transmitted primarily through sexual intercourse. Nowadays, the polymerase chain reaction (PCR) test for Treponema pallidum has been widely used and is expected to overcome problems in diagnostic tests for ...
Ida Effendi   +3 more
doaj   +1 more source

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