نتایج جستجو برای: chlamydophila abortus

تعداد نتایج: 5424  

Journal: :Veterinary research 2007
Julia Jaeger Elisabeth Liebler-Tenorio Nathalie Kirschvink Konrad Sachse Petra Reinhold

This study was aimed at evaluating functional and inflammatory consequences of persistent chlamydial infections on the respiratory system in clinically inconspicuous calves aged 2-7 months. Thirteen calves persistently infected with Chlamydophila (C.) abortus and/or C. pecorum (Chl+) were compared to 12 calves without chlamydial infections (Chl-). In order to evaluate lung function, 36 non-inva...

2013
Theologia Sarafidou Costas Stamatis Georgia Kalozoumi Vassiliki Spyrou George C. Fthenakis Charalambos Billinis Zissis Mamuris

Infectious diseases of sheep are of major economic importance causing direct and indirect losses. Among the major sheep infectious agents are Small Ruminant Lentivirus, Chlamydophila abortus and Mycobacterium avium subsp. paratuberculosis infections, mainly due to their worldwide distribution and economic impact that they cause. Based on the differential susceptibility to infectious diseases be...

Journal: :Journal of wildlife diseases 2007
A Alonso Aguirre Thomas J Keefe John S Reif Lizabeth Kashinsky Pamela K Yochem Jeremiah T Saliki Jeffrey L Stott Tracey Goldstein J P Dubey Robert Braun George Antonelis

As part of conservation efforts between 1997 and 2001, more than 25% (332 animals) of the endangered Hawaiian monk seal (Monachus schauinslandi) population was sampled in the northwestern Hawaiian Islands. Serum samples were tested for antibodies to viruses, bacteria, and parasites known to cause morbidity and mortality in other marine mammal species. Antibodies were found to phocine herpesviru...

2018
María Virginia Gentilini Ayelén Ivana Pesce Viglietti Paula Constanza Arriola Benitez Andrea Elena Iglesias Molli Gloria Edith Cerrone Guillermo Hernán Giambartolomei María Victoria Delpino

Brucella abortus induces an inflammatory response that stimulates the endocrine system resulting in the secretion of cortisol and dehydroepiandrosterone (DHEA). Osteoarticular brucellosis is the most common presentation of the active disease in humans, and we have previously demonstrated that B. abortus infection inhibits osteoblast function. We aimed to evaluate the role of cortisol and DHEA o...

Journal: :Infection and immunity 2013
Jin Ju Lee Dong Hyeok Kim Dae Geun Kim Hu Jang Lee Wongi Min Man Hee Rhee Jae Youl Cho Masahisa Watarai Suk Kim

Brucella abortus is an intracellular pathogen that uses a crafty strategy to invade and proliferate within host cells, but the distinct signaling pathways associated with phagocytic mechanisms of B. abortus remain unclear. The present study was performed to test the hypothesis that Toll-like receptor 4 (TLR4)-linked signaling interacting with Janus kinase 2 (JAK2) plays an essential role in B. ...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2015
S Chau Eugene Y K Tso W S Leung Kitty S C Fung

Psittacosis is a zoonotic disease caused by Chlamydophila psittaci. The most common presentation is atypical pneumonia. Three cases of pneumonia of varying severity due to psittacosis are described. All patients had a history of avian contact. The diagnosis was confirmed by molecular detection of Chlamydophila psittaci in respiratory specimens. The cases showed good recovery with doxycycline tr...

Journal: :Journal of immunology 2012
Gaku Nakato Koji Hase Michio Suzuki Masanobu Kimura Manabu Ato Misaho Hanazato Minoru Tobiume Motohiro Horiuchi Ryuichiro Atarashi Noriyuki Nishida Masahisa Watarai Koichi Imaoka Hiroshi Ohno

Brucella abortus is a Gram-negative bacterium causing brucellosis. Although B. abortus is known to infect via the oral route, the entry site in the gastrointestinal tract has been unclear. We found that B. abortus was selectively internalized by microfold cells (M cells), a subset of epithelial cells specialized for mucosal Ag uptake. During this process, colocalization of cellular prion protei...

Journal: :Infection and immunity 2003
Bryan H Bellaire Philip H Elzer Sue Hagius Joel Walker Cynthia L Baldwin R Martin Roop

Brucella abortus reportedly produces the monocatechol siderophore 2,3-dihydroxybenzoic acid (2,3-DHBA) in response to iron limitation. Nucleotide sequence analysis of the cloned DHBA biosynthesis locus from virulent B. abortus 2308 and genetic complementation of defined Escherichia coli mutants were used to identify the B. abortus genes (designated dhbC, -B, and -A) responsible for synthesis of...

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