Introduction: Inflammasomes NLRP1 (NLR family pyrin domain containing 1) and NLRP3 are pivotal regulators of the innate immune response, activated by a spectrum of endogenous and exogenous stressors, including ultraviolet radiation (UVR). The precise molecular mechanisms underlying the activation of these inflammasomes remain unclear. Furthermore, the involvement of interleukin-33 (IL-33) in UVR-induced skin carcinogenesis is not well defined.
View Article and Find Full Text PDFErysipelas is a significant problem in the waterfowl farming in Poland, and information on the characteristics of the strains causing this disease is limited. In this study, we determined the serotypes, antimicrobial susceptibility, and potential mechanisms of resistance gene transfer in isolates (n = 60) from domestic geese and ducks. We also developed a multiplex PCR for the detection of resistance genes.
View Article and Find Full Text PDFspp. are normal intestinal tract microflorae found in poultry. However, the last decades have shown that several species, e.
View Article and Find Full Text PDFIntroduction: Universally, in microbiological diagnostics the detection of live bacteria is essential. Rapid identification of pathogens enables appropriate remedial measures to be taken. The identification of many bacteria simultaneously facilitates the determination of the characteristics of the accompanying microbiota and/or the microbiological complexity of a given environment.
View Article and Find Full Text PDFis a common foodborne infection. Many serovars belonging to subsp. are present in the gut of various animal species.
View Article and Find Full Text PDFGlobal pressure from consumers to improve animal welfare, and reduce microbiological risks or the use of antibiotics pose new challenges for the meat industry. Today's livestock production, despite many undertaken measures, is still far from being sustainable. This forced the need to work on alternative protein types that come from plants, insects, fungi, or cell culture processes.
View Article and Find Full Text PDFinfections (including APEC) in broiler chickens are not only a health and economic problem of the flock, but also a significant health threat to poultry meat consumers. The prophylactic and therapeutic effects of the phytobiotic composition on in broiler chickens were previously described. However, most of the data were related to the reference strains (for both in vitro and in vivo models).
View Article and Find Full Text PDFAvian reovirus (ARV) is a cause of infections of broiler and turkey flocks, as well as waterfowl birds. This case report describes a reovirus detection in a fattening goose flock. GRV-infected geese suffer from severe arthritis, tenosynovitis, pericarditis, depressed growth, or runting-stunting syndrome (RSS), malabsorption syndrome, and respiratory and enteric diseases.
View Article and Find Full Text PDFspp. is the most frequent cause of foodborne diseases, and the increasing occurrence of MDR strains is an additional and increasing problem. We collected spp.
View Article and Find Full Text PDFBackground: The identification of natural antibacterial agents from various sources that can act effectively against disease-causing foodborne bacteria is one of the major concerns throughout the world. In the present study, a unique phytobiotics mixture containing thymol, menthol, linalool, -anethole, methyl salicylate, 1,8-cineole, and -cymene was evaluated for antibacterial activity against selected strains of spp.
Results: The phytobiotics mixture was effective against subsp.
The "One Health" approach increasingly demonstrates the global spread of pathogenic microorganisms and their antimicrobial resistance in the environment, both in animals and humans. subsp. is nowadays very often isolated from cold-blooded reptiles to a lesser extent from sheep, but unfortunately more and more often from humans.
View Article and Find Full Text PDFFluorescent biosensors are chemically or genetically encoded reporters of cellular processes, signaling pathways, or biomolecule concentration, whose output is quantified using fluorescence microscopy or fluorescence spectrometry. These biosensors can detect the target activity or metabolites via mechanisms including conversion between nonfluorescent and fluorescent forms, changes in reporter intensity, changes in the intensity ratio across fluorescence channels, alterations to the subcellular localization of the bioreporter, and by fluorescence resonance energy transfer. Here, we describe the use of a chemical photoconverting biosensor, and genetically encoded localization and ratiometric biosensors, for monitoring the cellular and signaling processes involved in pathogen-induced apoptosis and the resulting destruction of the pathogen.
View Article and Find Full Text PDFBackground: Globally, is one of the leading causes of foodborne illness in humans. Food of animal origin is obligatorily tested for the presence of this pathogen. Unfortunately, in meat and meat products, this is often hampered by the presence of background microbiota, which may present as false-positive .
View Article and Find Full Text PDFNon-melanoma skin cancers (NMSCs), including basal cell carcinoma (BCC) and cutaneous squamous cell carcinoma (cSCC), are the most frequently diagnosed cancers in humans, however, their exact pathogenesis is not fully understood. In recent years, it has been hypothesized that the recently discovered Hippo pathway could play a detrimental role in cutaneous carcinogenesis, but no direct connections have been made. The Hippo pathway and its effector, YAP, are responsible for tissue growth by accelerating cell proliferation, however, YAP upregulation and overexpression have also been reported in numerous types of tumors.
View Article and Find Full Text PDF1,25-dihydroxyvitamin-D plays a central role in the immune system via binding to the vitamin D receptor. polymorphisms have been associated with multiple autoimmune disorders, including psoriasis. Until now, five polymorphisms, , , , and /Cdx2, have been studied in psoriasis, with contradicting results.
View Article and Find Full Text PDFInflammasomes are key innate immune system receptors that detect pathogenic endo- and exogenous stressors like microorganisms or ultraviolet radiation (UVR) which activate the highly proinflammatory cytokines interleukin-1β and interleukin-18. Inflammasomes are not only involved in inflammation, but also in carcinogenesis and tumor progression. Due to the dynamic increase in non-melanoma skin cancers (NMSC), it has become necessary to determine how UVR, which plays a key role in NMSC development, can regulate the structure and function of inflammasomes.
View Article and Find Full Text PDFBasal cell carcinoma (BCC) is the most common skin malignancy type in the Caucasian population, with a continuously increasing incidence rate. The etiology of BCC remains unknown, but it appears to have a multifactorial origin resulting from intrinsic and extrinsic factors, including short-wavelength ultraviolet B radiation. The role of specific proteins in BCC that are known to be responsible for the regulation of cell division and are involved in skin aging, including transforming growth factor (TGF)-β, Smad2, matrix metalloproteinases (MMPs)-1, -3, -8 and -9, cathepsin-K and progerin, remains unknown.
View Article and Find Full Text PDFBackground: There is still much ambiguity in studies of Sonic hedgehog (Shh) pathways and its dysregulation. Some studies concerning the role of the Shh pathway in basal cell carcinoma (BCC) have been conducted, but there is a lack of studies about Shh pathway dysregulation under the influence of ultraviolet (UV)B radiation.
Aim: To evaluate skin expression of Shh, Ptch1, Ptch2, Smo and Gli1 proteins in BCCs with and without the influence of UVB radiation.
Ultraviolet radiation (UVR) is one of the most important environmental factors involved in photoaging. Exposure to UVR leads to dysregulation of expression of cell cycle-related proteins which play key role in skin photodegradation that pretends to develop carcinogenesis. This study examines the role of various UVB doses on the expression of transforming growth factor beta (TGF-β), Smad2, cathepsin K, progerin and matrix metalloproteinases (MMPs)-1,-3,-8,-9.
View Article and Find Full Text PDFThe effects of LTs are mediated by GPCRs: cysLTs interact with CYSLTR1, CYSLTR2, or GPR17, and LTB acts via BLT1R or BLT2R. Data relating to the presence of these receptors in mature tissue mast cells are not entirely known. By confocal microscopy with image analyses and flow cytometry, we established that native rat mast cells isolated from peritoneal cavity constitutively express all studied receptors.
View Article and Find Full Text PDFIn recent decades, increases have been observed in the incidence of nonmelanoma skin cancers, including basal cell carcinoma (BCC) and squamous cell carcinoma. BCC is the most common neoplasm in Caucasian populations. Sonic hedgehog (Shh) pathway impairment plays a key role in BCC pathogenesis, and there is evidence that Shh pathway genetic variations may predispose to BCC development.
View Article and Find Full Text PDFStudy Aim: Evaluation of detection and drug resistance of Mycobacterium tuberculosis in patients from the Łódzkie Voivodship in the period 2009 - 2013.
Material And Methods: The data presented in the study include information obtained while diagnosing patients from the Łódzkie Voivodship in order to detect infections with Mycobacterium tuberculosis in the period 2009-2013.
Results: In 2009-2013 we analyzed clinical specimens for the purpose of detection of Mycobacterium tuberculosis.
Within the last decade, several antimicrobial peptides (AMPs) have been discovered. Cathelicidins are one family of AMPs characterized by a conserved cathelin domain and a variable C-terminal cationic antimicrobial domain. These peptides are produced by different cells, including leukocytes, epithelial cells and keratinocytes.
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