Zita Karancsi, Dóra Kovács, György Csikó, Orsolya Palócz, Ákos Jerzsele, Péter Gálfi, Orsolya Farkas
{"title":"Effect of hydroxylated and methylated flavonoids on cytochrome P450 activity in porcine intestinal epithelial cells.","authors":"Zita Karancsi, Dóra Kovács, György Csikó, Orsolya Palócz, Ákos Jerzsele, Péter Gálfi, Orsolya Farkas","doi":"10.1556/004.2023.00746","DOIUrl":"https://doi.org/10.1556/004.2023.00746","url":null,"abstract":"<p><p>Cytochrome P450 (CYP) oxidases are among the main metabolizing enzymes that are responsible for the transformation of xenobiotics, including clinically important drugs. Their activity can be influenced by several compounds leading to decreased efficacy or increased toxicity of co-administered medicines. Flavonoids exert various beneficial effects on human and animal health; therefore they are used as food and feed supplements. However, they are also well-known for their CYP modulating potential. Since the amount of CYP enzymes is highest in the liver, interaction studies are mainly conducted in hepatocytes, however, CYP activity in the gastrointestinal tract is also remarkable. In this study, effects of apigenin (API), quercetin (QUE) and their methylated derivatives trimethylapigenin (TM-API), 3-O-methylquercetin (3M-QUE) and 3',7-di-O-methylquercetin (3'7DM-QUE) on the CYP enzyme activity was examined in IPEC-J2 porcine intestinal epithelial cells. Potential food-drug interactions were studied using flavonoid treatment in combination with inducer and inhibitor compounds. API, TM-API, QUE and 3M-QUE significantly inhibited the CYP3A29 enzyme, while 3'7DM-QUE did not alter its activity. Enzyme inhibition has also been observed in case of some food-drug combinations. Our results support previous findings about CYP modulating effects of flavonoids and highlights the possibility of interactions when flavonoid-containing supplements are consumed during drug treatments.</p>","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":"71 1","pages":"16-24"},"PeriodicalIF":0.9,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9695332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Selma Pintarić, Zrinka Štritof, Vesna Mojčec Perko, Andrea Tumpa, Marija Cvetnić, Lana Hadžić
{"title":"Detection of blaCTX-M genes in ESBL-producing Klebsiella isolates from animals in Croatia.","authors":"Selma Pintarić, Zrinka Štritof, Vesna Mojčec Perko, Andrea Tumpa, Marija Cvetnić, Lana Hadžić","doi":"10.1556/004.2023.00845","DOIUrl":"https://doi.org/10.1556/004.2023.00845","url":null,"abstract":"<p><p>This study investigated the frequency of third-generation cephalosporin resistance in Klebsiella spp. isolated from animals in Croatia and the presence of blaCTX-M genes. A total of 711 enteric bacteria were isolated from clinical samples, and Klebsiella spp. isolates accounted for 6.9% (n = 49). Thirteen Klebsiella isolates (26.5%) were ESBL producers, nine isolates from the Klebsiella pneumoniae species complex (69.2%), and four (30.8%) Klebsiella oxytoca isolates. All carried the blaCTX-M-15 gene, and antimicrobial susceptibility testing revealed them as multidrug resistant. All were resistant to all tested cephalosporins, fluoroquinolones, aminoglycosides and aztreonam, 92.3% showed resistance to tetracycline, 84.6% to trimethoprim-sulfamethoxazole and 69.2% to nitrofurantoin. No isolate showed resistance to imipenem and meropenem. It can be concluded that ESBL-producing Klebsiella expressing the blaCTX-M gene are not rare among Klebsiella isolates from animals in Croatia.</p>","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":"71 1","pages":"12-15"},"PeriodicalIF":0.9,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10053927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dóra Lili Brassó, Renáta Knop, Zsófia Várszegi, Péter Bársony, István Komlósi, Árpád Bacsadi, Andrea Bistyák
{"title":"Assessment of the microbiological status of two Hungarian ostrich farms.","authors":"Dóra Lili Brassó, Renáta Knop, Zsófia Várszegi, Péter Bársony, István Komlósi, Árpád Bacsadi, Andrea Bistyák","doi":"10.1556/004.2023.00765","DOIUrl":"https://doi.org/10.1556/004.2023.00765","url":null,"abstract":"<p><p>The aim of this study was to estimate the occurrence of bacterial infection and contamination in two ostrich-producing farms. Compared to other poultry species, the hatchability of ostrich eggs is especially low. In a quest to identify factors that may affect hatchability, we collected faecal samples from adult birds, as well as eggs with dead-in-shell embryos, dead chicks and swab samples from the surface of the eggs and from the environment. The samples were screened for the presence of bacteria by routine bacteriological culture methods. The most prevalent bacteria, detected in the samples, were Escherichia coli, Bacillus spp. and coliform bacteria, whereas Pseudomonas spp. were less frequently found. The intensity and species compositon of the bacterial contamination was comparable in the two farms. Our results revealed that the bacteria, present in the environment, may likely be transmitted to the surface of the eggs. If they are able to penetrate the shell then the embryos and chicks become infected easily. These findings draw the attention to the special importance of enforcing efficient decontamination and disinfection measures to keep the environment and egg surface free from germs. Besides the appropriate egg treatment procedure, the incubation and hatching technology should also be kept under control.</p>","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":"71 1","pages":"3-11"},"PeriodicalIF":0.9,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9697334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Autologous platelet-rich plasma treatment in a dog with vincristine extravasation injury.","authors":"Basak Boztok Ozgermen","doi":"10.1556/004.2023.00730","DOIUrl":"https://doi.org/10.1556/004.2023.00730","url":null,"abstract":"<p><p>Extravasation of vincristine sulfate (VS) is a common complication encountered during canine transmissible venereal tumor treatment and other hematopoietic neoplasms, such as lymphoma and leukemias. The leakage of the chemotherapeutic agent may result in soft tissue damage leading to ulceration and necrosis. Studies have shown that platelet-rich plasma consists of growth factors and cytokines, thus plays a crucial role in wound healing. This study aimed to evaluate the effects of autologous platelet-rich plasma and antimicrobial wound dressing for the treatment of VS extravasation-related acute full-thickness skin wounds. A male Aksaray Malakli shepherd dog (3 years old) was brought to our clinic with a wound on the left forelimb which appeared two days after intravenous injection of VS. Extravasation was suspected. A total of 3.5 mL autologous platelet-rich plasma was injected into the wound margins and an antimicrobial dressing containing chlorhexidine acetate was used weekly to close the wound. The wound healed without any complications in 6 weeks. It was concluded that autologous platelet-rich plasma treatment is a simple and cost-effective method for the treatment of VS extravasation-related acute full-thickness skin wounds.</p>","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":"71 1","pages":"25-29"},"PeriodicalIF":0.9,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9751183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Katarzyna Paździor-Czapula, Joanna Fiedorowicz, Iwona Otrocka-Domagała
{"title":"Myofibroblastic tumour in the liver of a cat - A case report.","authors":"Katarzyna Paździor-Czapula, Joanna Fiedorowicz, Iwona Otrocka-Domagała","doi":"10.1556/004.2023.00840","DOIUrl":"https://doi.org/10.1556/004.2023.00840","url":null,"abstract":"<p><p>This study presents a case of a primary hepatic myofibroblastic tumour in a 15-year-old European Shorthair female cat. The cat showed a gradual increase in liver enzymes (alanine aminotransferase and aspartate aminotransferase), and an abdominal ultrasound revealed a tumour located within the left lateral lobe of the liver. The tumour was surgically excised and sent for histopathology. Histopathological examination showed that the tumour was composed of homogeneous fusiform cells with low mitotic count, crowded within the perisinusoidal, portal and interlobular spaces, and entrapment of hepatocytes and bile ducts. Immunohistochemistry revealed that the tumour cells expressed vimentin and α-SMA, and were negative to desmin and cytokeratins. Based on the histological and immunohistochemical features, as well as some similarities with analogous entities in humans and animals, the tumour was classified as a myofibroblastic neoplasm originating from the liver.</p>","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":"71 1","pages":"30-33"},"PeriodicalIF":0.9,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9697341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zeynep Karapınar, Fatma İlhan, Mustafa Usta, Mehmet Özkan Timurkan
{"title":"Pathological and molecular investigation of canine distemper virus: Phylogenetic analysis of co-circulating genetic lineages in Türkiye.","authors":"Zeynep Karapınar, Fatma İlhan, Mustafa Usta, Mehmet Özkan Timurkan","doi":"10.1556/004.2023.00809","DOIUrl":"https://doi.org/10.1556/004.2023.00809","url":null,"abstract":"<p><p>Canine distemper virus (CDV) is a highly contagious virus that infects a wide variety of animals of carnivore species and may cause manifestations from subclinical infection to fatal disease. In this study, dogs clinically suspected having distemper were examined by reverse transcriptase-polymerase chain reaction (RT-PCR), histopathology and immuno-histochemistry. By histopathological examination, characteristic intracytoplasmic and/or intranuclear inclusion bodies were observed in the lung, stomach, small intestine, liver, kidney, spleen and central nervous system. Interstitial and broncho-interstitial pneumonia, gastroenteritis and encephalitis were revealed. CDV antigens were detected in all tissues with characteristic histopathological findings. The antigens were more abundant in the bronchial and bronchiolar epithelium and in the syntitial cells. Phylogenetic analyses were performed using the PCR-amplified partial sequences of the genes encoding the viral heamagglutinin and fusion proteins. The phylogenetic trees showed that the newly determined sequences were diverse and clustered within different lineages of the European or the Arctic strains.</p>","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":"71 1","pages":"54-64"},"PeriodicalIF":0.9,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9698579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maria Helena Barros Pinto, Thiago Rodrigues Cardoso Braga, Guilherme Reis Blume, Letícia Batelli de Oliveira, Nicolas Thomas Costa das Chagas, Fernanda Rezende Souza, Geovanni Dantas Cassali, Fabiano José Ferreira de Sant'Ana
{"title":"Metastatic exocrine pancreatic adenocarcinoma in a giant otter (Pteronura brasiliensis).","authors":"Maria Helena Barros Pinto, Thiago Rodrigues Cardoso Braga, Guilherme Reis Blume, Letícia Batelli de Oliveira, Nicolas Thomas Costa das Chagas, Fernanda Rezende Souza, Geovanni Dantas Cassali, Fabiano José Ferreira de Sant'Ana","doi":"10.1556/004.2023.00888","DOIUrl":"10.1556/004.2023.00888","url":null,"abstract":"<p><p>Neoplasms of the exocrine pancreas are uncommon in domestic animals and rarely occur in wildlife. This article describes the clinical and pathological findings of one case of metastatic exocrine pancreatic adenocarcinoma in an 18-year-old giant otter (Pteronura brasiliensis) in captivity with a history of inappetence and apathy. Abdominal ultrasonography was inconclusive, and tomography revealed a neoplasm affecting the urinary bladder and hydroureter. During the anaesthesia recovery, the animal presented a cardiorespiratory arrest and died. Grossly, there were neoplastic nodules in the pancreas, urinary bladder, spleen, adrenal glands, and mediastinal lymph node. Microscopically, all nodules were composed of a malignant hypercellular proliferation of epithelial cells with acinar or solid disposition, supported by a sparse fibrovascular stroma. Neoplastic cells were immunolabeled with antibodies to Pan-CK, CK7, CK20, PPP and chromogranin A. Approximately 25% of the cells were positive for the presence of Ki-67 too. Pathological and immunohistochemical findings confirmed the diagnosis of metastatic exocrine pancreatic adenocarcinoma.</p>","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":"71 1","pages":"41-45"},"PeriodicalIF":0.9,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9751174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Károly Vörös, Zsolt Becker, Zoltán Dudás Györki, Bernd Schulze Gronover, Ferenc Szalay
{"title":"Ultrasonography of the paralumbar muscles as a new aid during melarsomine treatment in canine heartworm disease. Description and illustration of the method - A preliminary study.","authors":"Károly Vörös, Zsolt Becker, Zoltán Dudás Györki, Bernd Schulze Gronover, Ferenc Szalay","doi":"10.1556/004.2022.00034","DOIUrl":"https://doi.org/10.1556/004.2022.00034","url":null,"abstract":"<p><p>Melarsomine is used intramuscularly to destroy adult heartworms when treating canine heartworm disease (HWD). This drug is highly irritative and can elicit local complications. Therefore, melarsomine should be injected into the paralumbar muscles by strictly adhering to the manufacturers' prescriptions. However, it is not known how to determine the optimal location of the needle during the injection process. Ultrasonography (US) of the epaxial (paralumbar) musculature was used as a new method to measure the cross-sectional diameter of the paralumbar musculature, to determine the required location of the injection needle, and to study the local side effects in two dogs with HWD. The macroscopic appearance of the melarsomine solution during injection was demonstrated by video imaging. Melarsomine was not fully gravitating, but its majority was spreading along the thickest fascia of the musculature. Three minutes thereafter, no ultrasound signs of the melarsomine solution were seen, suggesting a full absorption at least ultrasonographically. This procedure was simulated in vitro with methylene blue solution having the same appearance. Removing the injection needle only after 5 min post-injection could prevent undesirable leakage of the drug through the injection channel into the subcutaneous tissue. Ultrasonography can be a useful aid during the treatment of HWD with melarsomine according to this preliminary study.</p>","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":"70 4","pages":"263-268"},"PeriodicalIF":0.9,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9181077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}