Results 81 to 90 of about 5,954 (213)

Tools and mechanisms of vacuolar escape leading to host egress in Legionella pneumophila infection: Emphasis on bacterial phospholipases

Molecular Microbiology, Volume 121, Issue 3, Page 368-384, March 2024.
Scheme of how secreted exit‐associated phospholipases are engaged by Legionella pneumophila during lytic escape. 1. L. pneumophila enters the host cell in an endocytic manner. 2. The bacterium actively establishes an intracellular niche (Legionella‐containing vacuole, LCV) which is required for replication.
Jonathan Neuber, Christina Lang, Philipp Aurass, Antje Flieger   +3 more
wiley   +1 more source

AVIDITY OF IGG TO RICKETTSIA PROWAZEKII AS AN ADDITIONAL CRITERION FOR THE SEROLOGICAL DIFFERENTIAL DIAGNOSIS OF THE EPIDEMIC TYPH AND ITS RECRUDESCENT FORM - BRILL-ZINSSER DISEASE

Журнал микробиологии, эпидемиологии и иммунобиологии, 2018
Aim: to investigate the diagnostic significance of avidity index (AI) for IgG toR. prowazekii with the determination of specific G and M class antibodies. Materials and methods. IgG/IgM to R.
T. A. Chekanova, S. N. Shpynov, I. V. Tarasevich   +2 more
doaj   +1 more source

Risk1, a Phosphatidylinositol 3-Kinase Effector, Promotes Rickettsia typhi Intracellular Survival

mBio, 2020
To establish a habitable intracellular niche, various pathogenic bacteria secrete effectors that target intracellular trafficking and modulate phosphoinositide (PI) metabolism.
Oliver H. Voss, Joseph J. Gillespie, Stephanie S. Lehman, Sherri A. Rennoll, Magda Beier-Sexton, M. Sayeedur Rahman, Abdu F. Azad   +6 more
doaj   +1 more source

Paleoserological detection of Coronavirus antigens in dental calculus  of human remains dating from the beginning of the 19th century, French Ardennes

American Journal of Biological Anthropology, Volume 183, Issue 1, Page 165-171, January 2024.
Abstract Objective Vanishing viral RNA restricts our ability to detect ancient pathogens, so, we used paleo serological approaches to trace the dynamics of the Coronavirus in ancient populations. Materials and Methods We investigated 10 ancient dental calculus samples collected from a cemetery dated to the beginning of the 19th century and excavated in
N. Merrouche, S. Edouard, H. Oumarou Hama, D. Gucker, S. Thiol, N. Orain, G. Aboudharam, M. Drancourt, E. Terrer   +8 more
wiley   +1 more source

GroEL is an immunodominant surface-exposed antigen of Rickettsia typhi.

PLoS ONE, 2021
Rickettsioses are neglected and emerging potentially fatal febrile diseases that are caused by obligate intracellular bacteria, rickettsiae. Rickettsia (R.) typhi and R.
Jessica Rauch, Jessica Barton, Marcel Kwiatkowski, Malte Wunderlich, Pascal Steffen, Kristin Moderzynski, Stefanie Papp, Katharina Höhn, Hella Schwanke, Susanne Witt, Ulricke Richardt, Ute Mehlhoop, Hartmut Schlüter, Verena Pianka, Bernhard Fleischer, Dennis Tappe, Anke Osterloh   +16 more
doaj   +1 more source

Overlooked Brill‐Zinsser Disease Presenting Like Japanese Spotted Fever: A Diagnostic Challenge

The Journal of Dermatology, Volume 52, Issue 11, Page e995-e996, November 2025.
Makoto Kondo, Koji Habe, Keiichi Yamanaka   +2 more
wiley   +1 more source

Obligate intracellular parasites: Rickettsia prowazekii and Chlamydia trachomatis

FEBS Letters, 1999
Transitions to obligate intracellular parasitism have occurred at numerous times in the evolutionary past. The genome sequences of two obligate intracellular parasites, Rickettsia prowazekii and Chlamydia trachomatis, were published last year. A comparative analysis of these two genomes has revealed examples of reductive convergent evolution, such as a
Zomorodipour, Alireza, Andersson, Siv G.E   +1 more
openaire   +2 more sources

Unusual organization of the rRNA genes in Rickettsia prowazekii [PDF]

Journal of Bacteriology, 1995
We describe here the organization of the rRNA genes in Rickettsia prowazekii. In this organism, the 23S and the 5S rRNA genes are tightly linked to each other, whereas the 16S rRNA gene is separated from this cluster. The 23S-5S unit is preceded by the methionyl-tRNAfMet formyltransferase gene.
S G, Andersson, A, Zomorodipour, H H, Winkler, C G, Kurland   +3 more
openaire   +2 more sources

A proof of concept for a targeted enrichment approach to the simultaneous detection and characterization of rickettsial pathogens from clinical specimens

Frontiers in Microbiology
Infection with either Rickettsia prowazekii or Orientia tsutsugamushi is common, yet diagnostic capabilities are limited due to the short window for positive identification. Until now, although targeted enrichment had been applied to increase sensitivity
Adrian C. Paskey, Adrian C. Paskey, Kevin L. Schully, Logan J. Voegtly, Logan J. Voegtly, Catherine E. Arnold, Catherine E. Arnold, Regina Z. Cer, Kenneth G. Frey, Paul W. Blair, Paul W. Blair, Danielle V. Clark, Danielle V. Clark, Hong Ge, Allen L. Richards, Christina M. Farris, Kimberly A. Bishop-Lilly   +16 more
doaj   +1 more source

Ecoepidemiología de la infección por rickettsias en roedores, ectoparásitos y humanos en el noroeste de Antioquia, Colombia

Biomédica: revista del Instituto Nacional de Salud, 2013
Introducción. Las rickettsias son bacterias patógenas usualmente transmitidas por ectoparásitos, como garrapatas, piojos o pulgas. En la última década se presentaron tres brotes de rickettsiosis con casos fatales en la región noroccidental de Antioquia y
Juan Carlos Quintero, Andrés Felipe Londoño, Francisco J. Díaz, Piedad Agudelo-Flórez, Margarita Arboleda, Juan David Rodas   +5 more
doaj   +1 more source