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Результаты 181-190 из 520
Effects of tyrosine kinase inhibitor-masitinib mesylate on canine mammary tumour cell lines
2021
Ustun-Alkan Fulya | Bakırel Tülay | Üstüner Oya | Anlas Ceren | Cinar Suzan | Yıldırım Funda | Gürel Aydın
Masitinib mesylate, a selective tyrosine kinase inhibitor of the c-KIT receptor, is used for the treatment of mast cell tumours in dogs. Masitinib has previously been investigated in various cancers; however, its potential anticancer effect in canine mammary tumours (CMTs) is unknown. In the present paper, we investigated the antiproliferative effect of masitinib in CMT cells and its possible mechanisms of action.
Показать больше [+] Меньше [-]The impact of selected risk factors on the occurrence of highly pathogenic avian influenza in commercial poultry flocks in Poland
2021
Gierak Anna | Śmietanka Krzysztof
Introduction of highly pathogenic avian influenza virus (HPAIV) into a country and its further spread may have a devastating impact on the poultry industry and lead to serious economic consequences. Various risk factors may increase the probability of HPAI outbreak occurrence but their relative influence is often difficult to determine. The study evaluates how the densities of selected poultry species and proximity to the areas inhabited by wild birds impacted HPAI outbreak occurrence during the recently reported epidemics in Poland.
Показать больше [+] Меньше [-]Histamine contents in raw long-ripening meat products commercially available in Poland
2021
Michalski Mirosław | Pawul-Gruba Marzena | Madejska Anna
Many consumers seek long-ripening meat products. The availability of these highly distinctive cured pork varieties is continuously expanding and their safety should be subject to monitoring. One of potentially harmful substances in these products is histamine. The presence of this toxic amine is reported in many countries, even in high concentrations. However, the EU has not regulated the permissible histamine content in meat, in a situation at odds with that of regulated fish and fish products. This study established the usefulness of biogenic amine testing in long-ripening pork and furnished indicative concentrations potential useful as a background for future research in preparation for EU regulative intervention.
Показать больше [+] Меньше [-]Occurrence and antimicrobial resistance of enterococci isolated from goat’s milk
2021
Gołaś-Prądzyńska Marlena | Rola Jolanta G.
Enterococci are widespread, being part of the bacterial flora of humans and animals. The food chain can be therefore considered as the main route of transmission of antibiotic resistant bacteria between the animal and human populations. Milk in particular represents a source from which resistant bacteria can enter the human food chain. The aim of the study was to determine the occurrence and resistance to antimicrobial agents of Enterococcus spp. strains isolated from raw goat’s milk samples.
Показать больше [+] Меньше [-]Characterisation of a new molecule based on two E2 sequences from bovine viral diarrhoea-mucosal disease virus fused to the human immunoglobulin Fc fragment
2021
González Pose Alaín | Montesino Seguí Raquel | Maura Pérez Rafael | Hugues Salazar Florence | Cabezas Ávila Ignacio | Altamirano Gómez Claudia | Sánchez Ramos Oliberto | Roberto Toledo Jorge
Proper conformational arrangement of the E2 molecules of bovine viral diarrhoea-mucosal disease virus (BVD-MDV) is crucial to obtain an effective recombinant vaccine candidate against the disease. In this study, we characterised a new molecule composed of two distinct sequences of the E2 glycoprotein of BVD-MDV and the Fc fragment of human immunoglobulin (BVDE2Fc).
Показать больше [+] Меньше [-]Comparison of chicken immune responses after inoculation with H5 avian influenza virus-like particles produced by insect cells or pupae
2021
Huang Dean | Chao Yu-Chan | Lv Zhengbing | Jan Jia-Tsrong | Yang Yu-Chih | Hsiao Pei-Wen | Wu Chia-Ying | Liao Chiu-Hsun | Wu Tzu-Hsien | Wang Lih-Chiann
Novel clade 2.3.4.4 H5 highly pathogenic avian influenza virus (HPAIV) outbreaks have occurred since early 2015 in Taiwan and impacted the island economically, like they have many countries. This research investigates the immunogenicity of two HPAIV-like particles to assess their promise as vaccine candidates.
Показать больше [+] Меньше [-]Microbiological safety of food of animal origin from organic farms
2021
Sosnowski Maciej | Osek Jacek
The organic food sector and consumer interest in organic products are growing continuously. The safety and quality of such products must be at least equal to those of conventional equivalents, but attaining the same standards requires overcoming a particular problem identified in organic food production systems: the occurrence of bacterial pathogens such as Salmonella, Campylobacter, Listeria monocytogenes, Staphylococcus aureus and pathogenic Escherichia coli. These food-borne microorganisms were detected in the production environments of such food. The prevalence of pathogenic bacteria in organic livestock and products may be higher, but may also be the same as or lower than in like material from conventional farms. Furthermore, the incidence of antimicrobial-resistant bacteria was more often detected in conventional than in organic production. The aim of this review was to present the recent information on the microbiological safety of food of animal origin produced from raw materials from organic farms.
Показать больше [+] Меньше [-]Phytoncides in the prevention and therapy of blackhead disease and their effect on the turkey immune system
2021
Tykałowski Bartłomiej | Śmiałek Marcin | Kowalczyk Joanna | Dziewulska Daria | Stenzel Tomasz | Koncicki Andrzej
Turkey histomonosis poses a serious threat to poultry production due to the ban on the use of effective drugs. The aim of the study was to evaluate the influence of a phytoncidal feed supplement on the course of histomonosis. The preparation was also analysed for immunomodulatory properties.
Показать больше [+] Меньше [-]Mink SARS-CoV-2 infection in Poland – short communication
2021
Domańska-Blicharz Katarzyna | Orłowska Anna | Smreczak Marcin | Niemczuk Krzysztof | Iwan Ewelina | Bomba Arkadiusz | Lisowska Anna | Opolska Justyna | Trębas Paweł | Potyrało Patrycja | Kawiak-Sadurska Magdalena | Rola Jerzy
Since April 2020, when the first SARS-CoV-2 infection was reported in mink and subsequently in mink farm workers in the Netherlands, it has been confirmed that human-to-mink and mink-to-human transmission can occur. Later, SARS-CoV-2 infections in mink were reported in many European and North American countries.
Показать больше [+] Меньше [-]Acute and sub-chronic toxicity study of recombinant bovine interferon alpha in rodents
2021
Yu Hai-Yang | Gao Dong-Mei | Zhou Wei | Xia Bing-Bing | He Zhi-Yuan | Wu Bo | Jiang Min-Zhi | Wang Ming-Li | Zhao Jun
Recombinant bovine interferon alpha (rBoIFN-α) has been demonstrated to have antiviral activity. However, no conduct of acute or chronic toxicity tests has been reported.
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