Acta veterinaria Hungarica最新文献

Ursodeoxycholic acid ameliorates paclitaxel-induced hepatic injury in rats: Evaluation of oxidative and DNA damage, apoptosis and autophagy. 熊去氧胆酸改善紫杉醇诱导的大鼠肝损伤：氧化和DNA损伤、细胞凋亡和自噬的评估。

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-05-08 DOI: 10.1556/004.2025.01155

Mehmet Eki Ci, Mustafa Özkaraca, Hilmi Ataseven

{"title":"Ursodeoxycholic acid ameliorates paclitaxel-induced hepatic injury in rats: Evaluation of oxidative and DNA damage, apoptosis and autophagy.","authors":"Mehmet Eki Ci, Mustafa Özkaraca, Hilmi Ataseven","doi":"10.1556/004.2025.01155","DOIUrl":"https://doi.org/10.1556/004.2025.01155","url":null,"abstract":"Paclitaxel (PTX), widely used in chemotherapy, can cause serious side effects such as hepatotoxicity. This study aimed to investigate the therapeutic effects of ursodeoxycholic acid (UDCA) - a secondary bile acid, a byproduct of intestinal bacteria with potent antioxidant properties - against PTX-induced liver injury. PTX was administered intraperitoneally at 2 mg*kg-1 for 5 days to induce liver damage. Rats in the first treatment group received UDCA orally at 60 mg*kg-1 for fifteen days, while the second group received the same dose for ten days. Serum levels of AST, ALT, ALP, LDH, total protein, and albumin were analysed using an autoanalyzer. Liver tissue was assessed for total oxidative status (TOS), oxidative stress index (OSI) and total antioxidant status (TAS). Histopathological and immunohistochemical analyses were also conducted. UDCA administration ameliorated PTX-induced changes in bodyweight and liver enzymes. It reduced necrosis, hydropic degeneration and mononuclear cell infiltration in liver tissue. UDCA also significantly decreased TOS and OSI levels, alleviating oxidative stress, and increased TAS. Furthermore, UDCA reduced DNA damage, evidenced by lower 8-OHdG immunoreactivity, and regulated autophagy and apoptosis by reversing elevated LC3B and cleaved caspase-3 levels. These findings suggest that UDCA may offer therapeutic benefits against PTX-induced hepatotoxicity.","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143959604","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}

引用次数: 0

Histopathological and IHC evaluation of malignant non-pigmented chromatophoroma in a savannah monitor (Varanus exanthematicus). 大草原斑蝶恶性非色素色素瘤的组织病理学和免疫组化评价。

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-05-05 DOI: 10.1556/004.2025.01118

Marta Durska, Mateusz Mikiewicz, Katarzyna Paździor-Czapula, Michał Gesek, Iwona Otrocka-Domagała

{"title":"Histopathological and IHC evaluation of malignant non-pigmented chromatophoroma in a savannah monitor (Varanus exanthematicus).","authors":"Marta Durska, Mateusz Mikiewicz, Katarzyna Paździor-Czapula, Michał Gesek, Iwona Otrocka-Domagała","doi":"10.1556/004.2025.01118","DOIUrl":"https://doi.org/10.1556/004.2025.01118","url":null,"abstract":"Chromatophoromas are neoplasms arising from pigment cells (chromatophores) and commonly manifest as cutaneous lesions. While brown to black melanophoromas are most prevalent in reptiles, sporadic cases of non-pigmented chromatophoromas have been reported. This case study documents the clinical presentation, histopathological features and IHC (IHC) profile of an oral non-pigmented chromatophoroma in a 13-year-old male savannah monitor (Varanus exanthematicus). Histopathological examination revealed a poorly demarcated tumour located in the mucosa. Non-pigmented neoplastic cells with marked anisocytosis, anisokaryosis, increased nuclear-cytoplasmic ratio and numerous mitotic figures formed solid packets separated by collagenous septa. IHC analysis revealed that tumour cells were positive to melan-A, S100 protein, neuron-specific enolase and cytokeratins AE1/AE3. Based on the histopathological and IHC findings, the tumour was diagnosed as a non-pigmented chromatophoroma. Detailed histopathological and IHC profiling enhances our comprehension of the diversity within chromatophoromas and underscores the diagnostic complexities involved. Immunohistochemistry is a crucial tool for identifying non-pigmented chromatophoromas.","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957879","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}

引用次数: 0

Seasonal dynamics of Ostertagia ostertagi infection in lactating Holstein-Friesian cows on a dairy farm in Hokkaido, Japan. 日本北海道某奶牛场泌乳荷斯坦-弗里夏奶牛中Ostertagia感染的季节性动态。

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-04-30 DOI: 10.1556/004.2025.01144

Keiko Ikeda, Yasuhito Asakura, Shinichiro Fukumoto, Kazuyuki Suzuki, Haruyuki Hirata

引用次数: 0

Identification of yeast in healthy and subclinical mastitis-diagnosed Anatolian buffaloes in smallholder dairy farms in Turkey. 在土耳其小农奶牛场诊断为健康和亚临床乳腺炎的安纳托利亚水牛中酵母的鉴定

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-04-30 DOI: 10.1556/004.2025.01129

Oguz Kagan Turedi, Esra Seker

{"title":"Identification of yeast in healthy and subclinical mastitis-diagnosed Anatolian buffaloes in smallholder dairy farms in Turkey.","authors":"Oguz Kagan Turedi, Esra Seker","doi":"10.1556/004.2025.01129","DOIUrl":"https://doi.org/10.1556/004.2025.01129","url":null,"abstract":"This study aimed to identify yeast species in healthy Anatolian buffaloes and those with subclinical mastitis on smallholder farms using the Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) method and assess antifungal resistance. Milk samples from 390 udder lobes of 100 buffaloes were tested and California Mastitis Test (CMT) results showed 265 negative, 102 suspicious and 23 CMT ≥+1 lobes. A total of 76 yeast isolates (19.5%) were obtained through classical culture methods. MALDI-TOF MS identified seven genera, with the most common species being Pichia kudriavzevii (54%), Kluyveromyces marxianus (21%) and Nakaseomyces glabrata (10.5%). Antifungal resistance was determined by the disk diffusion method, showing the highest resistance to caspofungin (69.7%), followed by fluconazole (65.8%) and ketoconazole (31.6%). This study highlights the presence of diverse yeast species in buffalo milk, emphasizing the importance of understanding their role in mastitis and antifungal resistance for animal and public health. To our knowledge, this is the first study showing the identification of different yeast species isolated from Anatolian buffaloes in smallholder dairy farms in Turkey.","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143961416","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}

引用次数: 0

Transmission route-dependent genetic diversity of selected protozoan parasites as reflected by the phylogenetic analysis of the 18S rRNA gene. 18S rRNA基因的系统发育分析反映了所选原生寄生虫传播途径依赖的遗传多样性。

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-03-27 Print Date: 2025-04-22 DOI: 10.1556/004.2025.01128

Sándor Hornok, Gergő Keve, Barbara Tuska-Szalay

{"title":"Transmission route-dependent genetic diversity of selected protozoan parasites as reflected by the phylogenetic analysis of the 18S rRNA gene.","authors":"Sándor Hornok, Gergő Keve, Barbara Tuska-Szalay","doi":"10.1556/004.2025.01128","DOIUrl":"10.1556/004.2025.01128","url":null,"abstract":"In this pilot study, the genetic diversity of protozoan parasites was analysed according to their different transmission routes (life cycle strategies), focusing on those species which were recently discovered or molecularly analysed for the first time in Hungary or its geographical region. The results showed that among four apicomplexan parasites (Babesia gibsoni, Cytauxzoon europaeus, Sarcocystis morae and Hepatozoon felis) the latter had the highest genetic diversity as reflected by its 18S rRNA gene sequences showing high (1.75%) maximum intraspecific pairwise distance, and also, based on its phylogenetic clustering. This is probably related to the long evolutionary history of H. felis, the absence of its intravascular division and other life cycle characteristics precluding direct transmission between hosts. On the other hand, among non-apicomplexan protozoa (Trichomonas gallinae, Pentatrichomonas hominis, Tritrichomonas foetus and Acanthamoeba castellanii), the latter proved to have the highest genetic diversity (7.73%), most likely due to its long evolutionary history, lateral gene transfer, homologous recombination and the absence of direct host-to-host dispersal. Transmission mode had a significant impact on the genetic diversity among protozoan parasites, depending on life cycle strategies and consequent frequency/chance of sexual reproduction vs binary fission. In particular, the absence of direct transmission between hosts is a common trait of H. felis and A. castellanii, contributing to their high genetic diversity.","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":" ","pages":"64-72"},"PeriodicalIF":0.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717656","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}

引用次数: 0

The amount of vascularization in placentomes can reflect the number of offspring in Kıvırcık ewes. 脉管化的数量可以反映Kıvırcık母羊的子代数量。

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-03-17 Print Date: 2025-04-22 DOI: 10.1556/004.2024.01056

Ibrahim Kurban, Zeynep Günay Uçmak, Mehmet Fatih Özbezek, Mehmet Ragip Kiliçarslan

{"title":"The amount of vascularization in placentomes can reflect the number of offspring in Kıvırcık ewes.","authors":"Ibrahim Kurban, Zeynep Günay Uçmak, Mehmet Fatih Özbezek, Mehmet Ragip Kiliçarslan","doi":"10.1556/004.2024.01056","DOIUrl":"10.1556/004.2024.01056","url":null,"abstract":"This study aimed to investigate whether the power Doppler ultrasonography can distinguish between singleton and twin pregnancies on day 50 by determining placentome vascularization in Kıvırcık ewes. A total of 67 ewes were enrolled for the study. Pregnancy was confirmed on day 23 at 51 of 67 sheep that were synchronized. The groups were formed based on the presence of single (Group S; n = 25 ewes) or twin (Group T; n = 26 ewes) foetuses. Placentome diameters on day 50 were not different between the groups (P > 0.05). Placentome blood flow area and the mean, minimum and maximum amount of coloured pixels were unrelated to groups. However, the relationship between the parameters that reflect the placentome vascularity in Group S was statistically detectable. The mean amount of coloured pixels in Group S tended to be moderately correlated with the mean amount of coloured pixels in Group T. There was a positive correlation in the mean, maximum, and area of the coloured pixels in twin pregnancies. In conclusion, power flow Doppler ultrasonography can be used to determine placentome blood perfusion but the number of offspring on day 50 could not be determined by placentome vascularity.","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":" ","pages":"43-48"},"PeriodicalIF":0.7,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646690","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}

引用次数: 0

Genetic distribution of polymorphisms in the shadow of prion protein (SPRN) gene in Jeju black cattle. 济州黑牛朊蛋白（SPRN）基因阴影多态性的遗传分布。

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-03-03 Print Date: 2025-04-22 DOI: 10.1556/004.2025.01138

Thi-Thuy-Duong Nguyen, Da-In Choi, Kyoungtag Do, Nameun Kim, Byung-Hoon Jeong

{"title":"Genetic distribution of polymorphisms in the shadow of prion protein (SPRN) gene in Jeju black cattle.","authors":"Thi-Thuy-Duong Nguyen, Da-In Choi, Kyoungtag Do, Nameun Kim, Byung-Hoon Jeong","doi":"10.1556/004.2025.01138","DOIUrl":"10.1556/004.2025.01138","url":null,"abstract":"Bovine spongiform encephalopathy (BSE) is a progressive neurodegenerative disorder in cattle that poses risks to public health and has economic consequences. The shadow of prion protein encoded by the shadow of prion protein (SPRN) gene affects prion disease progression. A 12-base-pair indel polymorphism in the SPRN gene has been implicated in BSE susceptibility in Polish cattle. Building upon our previous research, we aimed to investigate the SPRN gene polymorphisms in Jeju black cattle - a Korean native breed with distinct genetic features and compared them with those in Hanwoo and Korean Holstein. Our findings reveal that the Jeju black cattle SPRN gene, with only two synonymous single nucleotide polymorphisms, has lower genetic diversity than that in Hanwoo and Korean Holstein. Moreover, we contrasted the distribution of c.199_210delGCCGCGGCGGGG (67_70delAAAG) polymorphisms in the SPRN gene between BSE-infected Polish cattle and Korean cattle to assess BSE susceptibility. The results suggest that Jeju black and Korean Holstein demonstrate a higher genetic potential for BSE resistance compared to the Hanwoo breed. To the best of our knowledge, this study provides the first report of the SPRN gene in Jeju black cattle, along with a comparative analysis of SPRN gene polymorphisms across three Korean cattle breeds.","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":" ","pages":"8-14"},"PeriodicalIF":0.7,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143539786","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}

引用次数: 0

Pet and wild rodents as hosts of Giardia duodenalis in Central Europe, Hungary. 在中欧，匈牙利，宠物和野生啮齿动物作为十二指肠贾第虫宿主。

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-02-18 Print Date: 2025-04-22 DOI: 10.1556/004.2024.01115

Barbara Tuska-Szalay, Ditta Sipos, Dávid Czabán, Zsuzsa Kalmár, Gergő Keve, Sándor Szekeres, Barbara Szilvia Kelemen, Attila D Sándor, Sándor Hornok

{"title":"Pet and wild rodents as hosts of Giardia duodenalis in Central Europe, Hungary.","authors":"Barbara Tuska-Szalay, Ditta Sipos, Dávid Czabán, Zsuzsa Kalmár, Gergő Keve, Sándor Szekeres, Barbara Szilvia Kelemen, Attila D Sándor, Sándor Hornok","doi":"10.1556/004.2024.01115","DOIUrl":"10.1556/004.2024.01115","url":null,"abstract":"Rodents (Mammalia: Rodentia) are among the ubiquitous hosts of Giardia duodenalis, as they can harbour at least six assemblages of this species, including the zoonotic assemblages A and B. However, studies targeting a broad spectrum of rodents and rabbits sampled in the same region are scarce, even in Europe. During this study, 164 samples were collected from five rodent species and rabbits in five locations in Hungary, to examine the presence of G. duodenalis with traditional parasitological and molecular methods. Parasitological analysis revealed the presence of cysts in 58.3% of asymptomatic Norway rats and 27.6% of chinchillas. Three degus were also found Giardia-infected (prevalence: 16.7%) using flotation technique. With PCR targeting three genetic markers, 3.2% of the samples showed positivity, whereas a rate of 21.9% prevalence was detected with flotation. The PCR products of five samples could be DNA sequenced. Phylogenetic analysis based on the partial sequences of the beta-giardin gene revealed the presence of assemblages B and G in rats. In addition, assemblage E was detected in a beaver, while assemblage B was present in a chinchilla. The results show that synanthropic rodent species have different epidemiological roles in the study region, depending on the prevalence of shedding Giardia cysts or harbouring zoonotic variants of G. duodenalis. Moreover, our findings confirm that pet rodents may pose a risk for zoonotic Giardia-transmission.","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":" ","pages":"49-55"},"PeriodicalIF":0.7,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439520","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}

引用次数: 0

The effects of the light spectrum on the reproductive system and epididymal semen quality of pubertal male rats. 光谱对青春期雄性大鼠生殖系统及附睾精液质量的影响。

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-02-18 Print Date: 2025-04-22 DOI: 10.1556/004.2025.01063

Tutku Can Acisu, Serkan Ali Akarsu, Fatma Firat, Nurhan Tiraşçi, Yasin Baykalir, Songül Çeribaşi, Ülkü Gülcihan Şimşek, Mustafa Sönmez

{"title":"The effects of the light spectrum on the reproductive system and epididymal semen quality of pubertal male rats.","authors":"Tutku Can Acisu, Serkan Ali Akarsu, Fatma Firat, Nurhan Tiraşçi, Yasin Baykalir, Songül Çeribaşi, Ülkü Gülcihan Şimşek, Mustafa Sönmez","doi":"10.1556/004.2025.01063","DOIUrl":"10.1556/004.2025.01063","url":null,"abstract":"Light is one of the factors affecting physiological functions in living things. In the present study, reproductive functions of male rats exposed to different wavelengths of light were evaluated. For this purpose, a total of 56 male Sprague Dawley rats were used in 7 groups (n = 8 per group). Rats were exposed to light spectrum with different wavelengths for 63 days. It was observed that malondialdehyde levels were lower in the orange (2.77 ± 0.16 nmol*mL-1), red (4.27 ± 0.17 nmol*mL-1), yellow (5.14 ± 0.15 nmol*mL-1) and green (5.56 ± 0.40 nmol*mL-1) coloured light group compared to the other groups [purple (7.07 ± 0.96 nmol*mL-1), blue (7.52 ± 0.89 nmol*mL-1), white (8.59 ± 1.20 nmol*mL-1)] (P < 0.001). The lowest glutathione levels were observed in purple (86.82 ± 1.63 nmol mL-1), blue (101.25 ± 3.61 nmol*mL-1), yellow (105.44 ± 1.70 nmol*mL-1) and green (108.11 ± 0.51 nmol*mL-1) coloured groups, respectively. The lowest sperm motility percentage was found in blue (29.16 ± 11.40), purple (56.25 ± 3.36), green (62.50 ± 4.91) and white (69.58 ± 5.51) coloured light groups compared to the other groups (P < 0.001). Epididymal sperm density decreased significantly in rats exposed to purple, orange and blue light (P < 0.001). The abnormal sperm ratio was higher in the blue and white light group compared to the other groups (P < 0.001). Histological examinations showed that tubulus seminiferus contortus diameter and germinal cell thickness decreased significantly in the purple light treatment (P < 0.001). As a summary, the application of purple and blue light has negative effects on the reproductive function in rats.","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":" ","pages":"1-7"},"PeriodicalIF":0.7,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439527","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}

引用次数: 0

Pathological effects of Thaparocleidus vistulensis (Siwak, 1932) infection on the gills of Silurus glanis Linnaeus, 1758. Thaparocleidus vistulensis （Siwak, 1932）感染对Silurus glanis Linnaeus（1758）鳃的病理影响。

IF 0.7 4区农林科学

Acta veterinaria Hungarica Pub Date : 2025-02-18 Print Date: 2025-04-22 DOI: 10.1556/004.2025.01121

Wan Muhammad Hazim Wan Sajiri, Csaba Székely, Kálmán Molnár, Kurt Buchmann, Boglárka Sellyei

{"title":"Pathological effects of Thaparocleidus vistulensis (Siwak, 1932) infection on the gills of Silurus glanis Linnaeus, 1758.","authors":"Wan Muhammad Hazim Wan Sajiri, Csaba Székely, Kálmán Molnár, Kurt Buchmann, Boglárka Sellyei","doi":"10.1556/004.2025.01121","DOIUrl":"10.1556/004.2025.01121","url":null,"abstract":"Histopathological alterations caused by Thaparocleidus vistulensis (Siwak, 1932) on the European catfish Silurus glanis Linnaeus, 1758 were investigated by histopathology and scanning electron microscopy (SEM). The pathological effects of T. vistulensis on the gills of the European catfish were mainly related to the attachment sites of the parasite to its host, but damage also affected adjacent structures. The primary attachment relies on the anchors at the opisthaptor which commonly adheres both superficially and deeply, into the basal region between adjacent secondary lamellae. At the attachment sites, the haptoral disc of the parasites formed deep concave cup-like depressions on the surface of the gill lamellae. Deep anchor penetration occasionally distorted the extracellular cartilaginous matrix and induced a marked proliferation of epithelial tissue. Epithelial hyperplasia leading to lamellar fusion and subsequent extravasated erythrocytes in the gill lamellae was also observed. The damage caused by the parasites also led to the fusion of lamellae at the tips of the heavily infected gill filaments, forming club-like structures. Epithelial eosinophilic granular cells were frequently observed at the attachment sites. The pathological changes caused by this monopisthocotylan parasite frame the need to implement effective management strategies for controlling T. vistulensis infections in farmed European catfish populations.","PeriodicalId":7247,"journal":{"name":"Acta veterinaria Hungarica","volume":" ","pages":"56-63"},"PeriodicalIF":0.7,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439517","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}

引用次数: 0