Publications by authors named "Ewa Dlugosz"

is a liver fluke that resides in the bile ducts of various mammals. The parasitosis leads to economic losses in animal production estimated at USD 3.2 billion annually.

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Introduction: is a zoonotic parasitic filarial nematode that infects carnivores and occasionally humans. Knowledge of the host-parasite molecular interactions enabling the parasite's avoidance of the host immune response in subcutaneous dirofilariasis remains limited. Parasitic orthologues of host macrophage migration inhibitory factor (MIF) are molecules potentially involved in this process.

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Gastric and colorectal cancer are among the most frequently diagnosed malignancies of the gastrointestinal tract. Searching for methods of therapy that complements treatment or has a preventive effect is desirable. Bacterial metabolites safe for human health, which have postbiotic effect, are of interest recently.

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Vaccines are one of the greatest achievements of modern medicine, offering an effective way to fight and control infectious diseases [...

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American mink (Neovison vison) is an invasive species in the sylvatic environment of Poland. Mink are exposed to different parasite infections as their preys serve as intermediate and/or paratenic hosts. The study aimed to discriminate the pattern of intestinal parasite infections in mink inhabiting Biebrza (BNP) and Narew (NNP) national parks.

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Dirofilaria repens is the causative agent of the zoonotic canine skin condition called subcutaneous dirofilariosis. Despite being endemic throughout much of Europe, little is known about host humoral responses to D. repens.

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Article Synopsis
  • * One key protein mentioned is the macrophage migration inhibitory factor (MIF), which regulates inflammation, and homologs of this protein have been identified in various nematode species.
  • * Advances in molecular biology and genetic engineering are allowing scientists to better understand these MIF homologs, their structure, and potential therapeutic applications for diseases related to parasites and inflammation.
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The embryonic stage of filarial nematodes, or microfilariae (Mf), shows daily and seasonal periodicity that requires their migration through blood vessels into the lungs, where they are sequestered when not circulating in the peripheral blood. Therefore, Mf and the host endothelium are likely in a permanent state of hide and seek. Interestingly, filarial nematodes co-cultured in media with a murine endothelial cell line survive eight times longer than those cultured in media alone.

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Article Synopsis
  • Dirofilaria repens is a parasitic nematode causing dirofilariasis, primarily affecting carnivores like dogs, but also poses a zoonotic risk to humans.
  • There is currently no vaccine for the disease, making early diagnosis crucial to control its spread, which can be challenging due to the intermittent presence of microfilariae in the bloodstream.
  • The study aims to develop more reliable diagnostic markers through phage display technology, focusing on single epitopes to enhance specificity and potentially detect specific cell-free DNA in dogs with high antibody levels, even in the absence of microfilariae.
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is a zoonotic roundworm that infects humans and dogs all over the world. Upon infection, larvae migrate to various tissues leading to different clinical syndromes. The host-parasite interactions underlying the process of infection remain poorly understood.

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Introduction And Objective: The aim was to review available data concerning the occurrence of protozoan parasites affecting carnivorous fur farm animals, such as: American mink, blue and silver foxes, and raccoon dogs. Although, many protozoan pathogens have been isolated in wild fur animals, some are still not recognised as relevant to particular fur farm animal species. Protozoans that have been isolated as causative agents of clinical cases and reported in these animals are: spp.

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  • The study evaluated the antimicrobial effects of 10 Lactobacillus probiotic strains on enteropathogens and spoilage microorganisms, examining both live and heat-killed bacteria.
  • Overall, whole bacterial cultures showed the greatest inhibition of harmful bacteria, with Lactobacillus exhibiting the strongest activity against L. monocytogenes and moderate effects against Salmonella, Shigella, and E. coli.
  • Lb. brevis O24 and Lb. rhamnosus K3 were identified as the most effective strains for inhibiting pathogen adhesion, suggesting potential applications in food and pharmaceutical industries.
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  • The study focused on investigating tapeworm infections in Konik Polski horses from Biebrza National Park through the collection of 162 fecal samples over various years from 2012 to 2015.
  • Tapeworm eggs were found in only two samples, showing a surprisingly low infection prevalence of 4.3% and 28.5% at different times in 2013.
  • Molecular techniques, specifically PCR, were used for tapeworm identification, confirming the presence of Anoplocephala perfoliata with a 100% match to a sample from a horse in the Czech Republic, marking a first in this application for Konik Polski horses.
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Subcutaneous dirofilariosis in dogs, caused by , is an underdiagnosed disease, now recognized for its zoonotic potential, and growing distribution and prevalence across Europe and Asia. Our understanding of the pathogenicity in human and canine host remains unclear, but case reports suggest that microfilariae (Mf) as well as adult may directly cause internal organs damage or may be a factor complicating the course of other ailments. The purpose of the study was to report high Mf in dogs and to discuss potential relevance with co-morbidity.

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Subcutaneous dirofilariosis is a zoonotic disease emerging throughout Europe caused by the filarial nematode . Despite its increasing prevalence, there is a large gap in knowledge of the impact of the parasite on the host. Currently classified as being non-pathogenic, recent evidence suggests that skin dirofilariosis is associated with dermatological conditions including concomitant pruritus, neoplastic processes, inflammation, and even blindness in dogs and humans.

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  • The study aimed to investigate the prevalence of various tick-borne pathogens in ixodid ticks collected from five regions in Ukraine, addressing the data gap on this issue compared to Western Europe.
  • A total of 524 ticks were collected, identified as three species, and analyzed for pathogens using PCR, revealing varying prevalence rates of different pathogens among ticks.
  • This research is significant as it provides the first prevalence data for certain pathogens in three Ukrainian regions and the first detection of Neoehrlichia mikurensis in ixodid ticks there.
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Twenty-nine Lactobacillus plantarum strains isolated from different types of Polish regional cheeses (Oscypek and Korycinski) were assessed for selected probiotic properties and anti-staphylococcal activity. Most of the tested L. plantarum strains were considered safe.

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The effect of Toxocara canis antigens on cytokine production by human THP-1 macrophages was studied in vitro. Toxocara Excretory-Secretory products (TES) and recombinant mucins (Tc-MUC-2, Tc-MUC-3, Tc-MUC-4, and Tc-MUC-5) as well as deglycosylated forms of these antigens were used in the study. TES products stimulated macrophages to produce the innate proinflammatory IL-1β, IL-6, and TNF-α cytokines regardless of the presence of glycans.

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Introduction: Canine roundworm and infections were investigated in experimentally infected farm mink () to describe the pattern of pathological lesions in this paratenic host.

Material And Methods: Material and MethodsInfections in mink developed following ingestion of embryonated eggs of either parasite or mice tissue infected with both parasite species.

Results: Comparative analysis of haematoxylin- and eosin-stained slides showed essential differences among the experimental groups.

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Introduction: Farm mink () can be naturally exposed to and pathogens on the farm. If mink were hosts, it would imply some veterinary public health as well as animal welfare issues. For this reason, the aim of the study was to determine whether mink might be definitive or paratenic hosts of these parasites.

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  • The study evaluated ten Lactobacillus strains from traditional Polish fermented vegetables for their probiotic activities, focusing on their ability to adhere to human intestinal cells and influence cytokine production from immune cells.
  • Strain adhesion varied significantly, with Lb. brevis O24 showing the highest attachment, and all strains increased pro-inflammatory cytokines while stimulating anti-inflammatory IL-10 production.
  • Lb. casei O18 was the strongest in inducing apoptosis in Caco-2 cells, but no strain affected apoptosis induced by staurosporine; some strains were highlighted as promising candidates for future probiotic applications in functional foods.
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The main aim of this study was to detect and identify antibacterial components of fraction I derived from eleven commercial C. incanus herbal teas. Fraction I obtained by a well-established phytochemical protocol of a multi-step extraction was expected to contain flavonoid aglycons alone.

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As opposed to organism-based drug screening approaches, protein-based strategies have the distinct advantage of providing insights into the molecular mechanisms of chemical effectors and thus afford a precise targeting. Capitalising on the increasing number of genome and transcriptome datasets, novel targets in pathogens for therapeutic intervention can be identified in a more rational manner when compared with conventional organism-based methodologies. Trehalose-6-phosphate phosphatases (TPPs) are structurally and functionally conserved enzymes of the trehalose biosynthesis pathway which play a critical role for pathogen survival, in particular, in parasites.

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Hookworms, a group to which Ancylostoma ceylanicum belongs, are gastrointestinal nematodes that infect more than 700 million people around the world. They are a leading cause of anemia in developing countries. In order to effectively prevent hookworm infections research is conducted to develop an effective vaccine using recombinant antigens of the parasite.

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