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The aim of our studies was to invent a reliable method for detection of the bactericidal activity of disinfectants against Borrelia burgdorferiin suspension (in vitro) and in cell line cultures (in vivo). In the suspension method, 0.01% octenidine at 20°C and 35°C was bactericidalto Borrelia afzeli; Borrelia garini, B. burgdorferi sensu stricto after 5 minutes treatment. Increase of the temperature...
Q fever is an infectious zoonotic disease characterized by sudden fever, headache, and atypical pneumonia, caused by Coxiella burnetii – an obligatory intracellular parasite. Based on phylogenetic analysis of the genes sequences, the classification was changed and C. burnetii species was included to the gamma subgroup of the proteobacteria, Legionellales order and Coxiellaceae family. This analysis...
Many bacterial species can be a cause of various heart diseases, such as: Borrelia burgdorferi sensu lato, Coxiella burnetii and Bartonella spp. The aim of the present studies was to establish if any tick-borne infections can contribute to serious heart disorders resulting in the need for heart transplantation. Myocardium, aortic and mitral valve samples from hearts removed from patients undergoing...
Apoptosis is a genetically controlled mechanism of cell death involved in the regulation of tissue homeostasis. The aim of this study was to investigate the influence of Borrelia afzelii, Coxiella burnetii, and Bartonella henselae bacteria on apoptosis measured as the level of caspase 3 activity in human fibroblast cells HEL-299. Our findings show that C. burnetii bacteria may inhibit the process...
Borrelia burgdorferi spirochetes are an infectious agent of Lyme borreliosis. The aim of our studies was to investigate the fate of engulfed B. burgdorferi cells in L-929 mouse fibroblasts and to observe development of intracellular infection in vitro after 2 and 48 h. Electron microscopic studies reveal consecutive stages of B. burgdorferi spirochetes penetration to mouse fibroblasts in vitro. It...
Coxiella burnetii is the etiologie agent of Q fever, a worldwide distributed zoonosis, accountable for serious health problem both for humans and animals. The exposure to C. burnetii infected animals and their products is the main risk factor for Q fever in humans. Several outbreaks of Q fever have been described in Poland which sources were recognized to be related to imported animals and their products...
Bartonella spp. bacteria are significant human pathogens and the agents of bacterial zoonosis acquired from an animal companion. The aim of the study was to determine the seroprevalence of two of the most common Bartonella species B. henselae and B. quintana in various human populations. The studied groups included: alcoholics, intravenous drug users, veterinarians, cats' owners. Blood samples were...
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