Veterinary Research Communications最新文献

{"title":"New records on autogenic behavior among populations of Ornithodoros fonsecai (Labruna and Venzal, 2009) (Ixodida: Argasidae) from northeastern Brazil.","authors":"Ana Carolina Castro-Santiago, Leidiane Lima-Duarte, Jaqueline Valeria Camargo, Simone Michaela Simons, Ricardo Bassini-Silva, Ana Cláudia Calchi, Glauber Meneses Barboza de Oliveira, Maurício Cláudio Horta, Sebastián Muñoz-Leal, Marcelo Bahia Labruna, Marcos Rogério André, Rosangela Zacarias Machado, Darci Moraes Barros-Battesti","doi":"10.1007/s11259-025-10654-7","DOIUrl":"10.1007/s11259-025-10654-7","url":null,"abstract":"<p><p>Ornithodoros fonsecai is an argasid tick that is endemic to Brazil. The autogeny (the oviposition without a blood meal) can be facultative or obligatory in female ticks of the family Argasidae. The present study reports new records on the facultative autogeny among populations of O. fonsecai from the states of Ceará and Pernambuco, northeast Brazil. The specimens obtained were fed on rabbits and kept in a biological oxygen demand (BOD) at 25 °C ± 1 ºC. All females obtained from both populations emerged from nymphs of third instar (N3) were autogenic, which were fed once before molting. Approximately 183 eggs were observed between 22 and 29 days (oviposition period), with a hatching rate of larvae of 52%, from two females of Ceará, and around 367 eggs between 20 and 35 days, with 92% of hatching of larvae, from three females of Pernambuco. Previously, this behavior has already been registered only in a population in the municipality of Nobres, state of Mato Grosso, Brazil. Thus, the present study reports facultative autogeny in females of O. fonsecai among populations from the states of Ceará and Pernambuco in northeastern Brazil.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"92"},"PeriodicalIF":1.8,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143047798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and validation of recombinant A27L based indirect-ELISA for Sheeppox and Goatpox disease in India.","authors":"Gundallahalli Bayyappa Manjunatha Reddy, Nagaraj Sudeep, Rizwan Apsana, Krishnappa Sumana, Pabbineedi Sai Mounica, Revanaiah Yogisharadhya, Vinayagamurthy Balamurugan, Shome Rajeswari, Shivachandra Bhadravati Sathish","doi":"10.1007/s11259-025-10656-5","DOIUrl":"10.1007/s11259-025-10656-5","url":null,"abstract":"<p><p>Sheeppox and Goatpox are highly contagious transboundary viral diseases of sheep and goats caused by Capripoxvirus, respectively. This study describes the development of indirect ELISA and its serodiagnostic potential as an alternative to the gold standard serum neutralization test (SNT). The homologue of vaccinia virus, ORF 117 (A27L) gene of the Romanian Fenner (RF) strain of Sheeppox virus (SPPV) was used for producing the full-length recombinant A27L (rA27L) protein (∼22 kDa) in a prokaryotic expression system. The immunogenic potential of purified rA27L was confirmed by detecting its specific reactivity with SPPV hyperimmune sera in Western Blot analysis. An indirect ELISA based on rA27L was developed and optimized. In comparison to SNT, the rA27L-ELISA assay exhibited a diagnostic specificity of 96% and 98%, while the sensitivity was 98% and 97%, with sheep and goat sera, respectively. No cross-reactivity was noted with other transboundary diseases such as Orf, Foot-and-Mouth disease, Peste des Petits Ruminants, Haemorrhagic septicemia and Brucella. A total of 508 serum samples were tested in total for the preliminary analysis. Among these, seropositivity rates for sheep (n = 270) and goats (n = 238) were 31.85% and 47.47%, respectively. Further, to determine accuracy of developed test a total of 1731 serum samples were analyzed from the states with high small ruminant populations in India which included Andhra Pradesh, Telangana, Karnataka, West Bengal, and Gujarat. Overall seropositivity recorded were 24% in sheep and 19.12% in goats. Among the population of sheep and goats examined, the females and animals in the age group of 1-2 years showed high Capripoxvirus antibodies. This study highlighted the potential utility of rA27L protein as a safe and alternative serodiagnostic reagent, unlike the SNT, for serosurveillance and seromonitoring of Capripoxvirus infection in sheep and goats.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"90"},"PeriodicalIF":1.8,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143047785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fecal carriage of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli in South American camelids and biosecurity practices among farms in northern Italy.","authors":"Laura Filippone Pavesi, Maria Cristina Rapi, Martina Penati, Laura Musa, Federica Santandrea, Vincenzo Ferrulli, Ilaria Martucci, Antonio Boccardo, Guido Grilli, Maria Filippa Addis, Valerio Bronzo","doi":"10.1007/s11259-025-10653-8","DOIUrl":"10.1007/s11259-025-10653-8","url":null,"abstract":"<p><p>South American camelids (SACs), particularly llamas (Lama glama) and alpacas (Vicugna pacos) are gaining popularity in Europe. Initially valued for their fiber and land management capabilities, these animals are now also kept for animal therapy, outdoor activities, and as companion animals. Despite their close interactions with humans and other animals, there is limited research on the transmission of microbes or antimicrobial resistance genes from SACs. This study aimed to survey the fecal carriage of extended-spectrum beta-lactamase ESBL-producing Escherichia coli (ESBL- E. coli) in SACs. A questionnaire was administered on-site to the farmers to survey management and biosecurity measures. Twelve farms from northern Italy (Lombardy, Piedmont, Veneto, and Emilia-Romagna) participated in the study. Fecal samples were analyzed to identify ESBL- E. coli and subjected to bacteriological culture on CHROMagar™ ESBL plates. Isolate identification was accomplished by MALDI-TOF MS, then subjected to the double-disk synergy test (DDST) and examined for 3 ESBL-encoding genes (bla_CTX-M, bla_TEM, bla_SHV) via PCR analysis. A total of 125 SACs (19 llamas and 106 alpacas) were included. Four (3.2%) of these animals were positive for ESBL- E. coli. Two isolates carried the bla_CTX-M gene; one had both bla_CTX-M and bla_TEM, and one was negative for all ESBL-encoding genes. Furthermore, none of the ESBL- E. coli isolates tested positive for the bla_SHV gene. Several data from our questionnaire revealed a lack of biosecurity protocols, which aligns with other studies. The prevalence of ESBL-producing bacteria identified in this study was lower than in different other studies. Despite the low biosecurity levels observed on the SAC farms, our findings showed a low occurrence of ESBL- E. coli and a low carriage rate of multidrug-resistant (MDR) ESBL- E. coli.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"88"},"PeriodicalIF":1.8,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11757900/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143024903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surgical approach to a biliary tract cyst in an elderly cat.","authors":"Emanuel Tres Bernicker, Luis Fernando Pedrotti, Helenize Molozzi, Aline Bielak Dos Santos, Rafael Levandowski, Renato do Nascimento Libardoni","doi":"10.1007/s11259-025-10658-3","DOIUrl":"10.1007/s11259-025-10658-3","url":null,"abstract":"<p><p>Choledochal cyst or biliary tract cyst is a pathological condition characterized by abnormal dilation of the hepatobiliary system. In veterinary medicine, case descriptions and histological characterizations of this biliary malformation are scarce, requiring reliance on data from human medicine. A presumptive diagnosis typically involves imaging studies, with histopathological examination required for confirmation. Treatment often involves surgical intervention to remove the cyst and restore normal biliary function. A 15-year-old mixed-breed domestic female cat presented with vomiting and anorexia. Ultrasonographic examination revealed a dilation adjacent to the caudal aspect of the gallbladder. The patient underwent surgical intervention, during which a sacculation in the cystic duct region was identified and completely excised. Histopathological analysis confirmed the diagnostic suspicion of a biliary tract cyst. Despite the limited veterinary literature, the success of the surgical intervention, involving complete cyst removal, was evident. The patient remains stable and fully recovered twelve months post-surgery.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"89"},"PeriodicalIF":1.8,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143024913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of canine sperm cryopreservation by focusing on glycerol concentration and freezing rate.","authors":"Kazuko Ogata, Ayaka Takeuchi, Shiori Ashibe, Naoko Sugane, Yoshikazu Nagao","doi":"10.1007/s11259-025-10651-w","DOIUrl":"10.1007/s11259-025-10651-w","url":null,"abstract":"<p><p>The purpose of this study was to improve the quality of frozen-thawed canine spermatozoa through the optimization of glycerol concentration (GC) and freezing rate in the semen freezing protocol. Ejaculates from nine dogs were diluted with an extender containing 0%, 1.5%, 3%, 6%, or 9% glycerol. The suspensions were loaded into 0.25 ml straws, frozen in nitrogen vapor in a closed box, and immersed in liquid nitrogen (LN₂). The freezing rate was controlled by setting the distance from the LN₂ surface to the straws as 1, 4, 7, or 10 cm. Firstly, freezing curves for each GC and freezing rate were analyzed. The analysis showed that the temperature of ice nucleation, freezing point, and immersion were changed with a certain trend depending on the GCs and freezing rates. Secondly, the sperm motility index (MI), viability and mitochondrial (MT) activity were evaluated. At 0 h after thawing, the MI was higher in the 3% and 6% GCs than the 0% GCs (P < 0.05). At 24 h, the 3% GC with 1 cm LN₂ distance (1 cm-3%) and the 7 cm-6% showed higher viability than the other conditions (P < 0.05), and the highest MT activity was obtained in the 1 cm-3%, which was higher than the other conditions (P < 0.05). The present findings indicate that the rapid freezing rate at 1 cm (average - 31 °C/min) with 3% GC provided the optimal condition in this study; use of this condition should reduce the detrimental damage to dog spermatozoa caused by ice crystal formation during freezing.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"86"},"PeriodicalIF":1.8,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11754312/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143012627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increasing matrix metalloproteinase-2 activity by treatment of ovine cervical explants with a long-acting analogue of oxytocin (Carbetocin) at the expected time of artificial insemination.","authors":"Marcelo Rodríguez-Piñón, Gonzalo García-Barcelo","doi":"10.1007/s11259-025-10652-9","DOIUrl":"10.1007/s11259-025-10652-9","url":null,"abstract":"<p><p>The aim was to study the effect of long-acting analogue of oxytocin (Carbetocin) on cervical collagenolysis of MAP-eCG synchronized ewes. At the expected time of artificial insemination, five ewes were slaughtered (n = 5) and their cervical explants (100-200 mg) were incubated during 12 h with MEM supplemented with 0, 8, 16, 32 and 64 ng/mL of Cb. Activities of activated and latent forms of matrix metalloproteinases-2 and - 9 (MMP-2 and MMP-9, respectively) in the supernatant were determined by a SDS-PAGE zymography and prostaglandin E2 concentration by immunoassay. Data were analyzed by ANOVA test. The MMP-9 activity was detected weakly and sporadically. The activity of activated MMP-2 was higher in 32 ng/mL Carbetocin treated samples than in untreated samples (P < 0.03). The activity of latent MMP-2 tended to be higher in 32 ng/mL than in 8 ng/mL Carbetocin treated samples (P = 0.083). The activated/latent ratio of MMP-2 tended to be higher in 64 ng/mL Cb treated samples than in untreated samples (P = 0.089). Prostagladin E2 concentration was not affected by Carbetocin dose. The data show that Carbetocin treatment of cervical explants induces an increase in MMP-2 activity by prostaglandin E2-independent mechanisms, suggesting Carbetocin as a potential inducer of cervical dilation in sheep.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"85"},"PeriodicalIF":1.8,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143012624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Disseminated protothecosis in a dog coinfected with Hepatozoon canis and Ehrlichia canis.","authors":"Leandro Aicardi, María Andrea Ballesteros, María Luján Cuestas, Alejandro Nazareno Etchecopaz","doi":"10.1007/s11259-025-10655-6","DOIUrl":"10.1007/s11259-025-10655-6","url":null,"abstract":"<p><p>Protothecosis is a severe, emerging opportunistic infection caused by the saprophytic, achlorophyllous microalgae of the genus Prototheca. Though uncommon, human and animal cases are increasing worldwide, making awareness of this fungal-like pathogen important in both human and veterinary medicine. We report a fatal case of disseminated protothecosis caused by P. wickherhamii in a 10-year-old, spayed, female, mixed-breed collie dog. Clinical signs included uveitis, ulcerated cutaneous nodules on the limbs and face, pododermatitis with nail loss and, lymphadenomegaly in the prescapular and popliteal lymph nodes. The cytology of enlarged lymph nodes, subcutaneous nodules, and bone marrow revealed oval yeast-like organisms, while the histopathology showed granulomatous inflammation with structures consistent with Prototheca spp. The serum chemistry panel indicated azotemia. P. wickerhamii was cultured from urine sediment and tissue smears. Co-infection with Hepatozoon canis and Ehrlichia canis was also detected. Despite rapid diagnosis following the initial consultation, the dog's condition worsened, and euthanasia was performed at the owner's request. Postmortem examination was declined. Disseminated protothecosis has a poor prognosis due to its insidious nature and the lack of effective treatments. Co-infection with hemoparasites complicated the case, contributing to the chronic progression of the disease. This case highlights the diagnostic challenges and poor outcome associated with disseminated protothecosis, particularly when complicated by other infections.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"87"},"PeriodicalIF":1.8,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143060854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Therapeutic potential of Bacillus-derived lipopeptides in controlling enteropathogens and modulating immune responses to mitigate post-weaning diarrhea in swine.","authors":"A L Di Giácomo, L N Azcurra, G García, C A Dogi, María Laura González Pereyra","doi":"10.1007/s11259-025-10648-5","DOIUrl":"10.1007/s11259-025-10648-5","url":null,"abstract":"<p><p>Post-weaning diarrhea (PWD) is a major concern for pig producers, as stress and early weaning increase susceptibility to enteropathogens like enterotoxigenic Escherichia coli (ETEC) and Salmonella enterica subsp. enterica serovar Typhimurium (S. Typhimurium). This study explores the immunomodulatory and antimicrobial properties of lipopeptide extracts (LPEs) from Bacillus strains which contain surfactin (SF) - an immunomodulatory lipopeptide - and their potential in mitigating PWD. Pre-incubation with LPEs from B. subtilis TC12, containing 1, 40 and 60 µg/ml SF, stimulated TNF-α production significantly (p < 0.05) in LPS-challenged RAW 264.7 cells. In contrast, B. velezensis MFF 2.2 LPE, containing 0.1 and 1 µg/ml SF, reduced TNF-α production by macrophages after LPS-challenge. The production of IFN-γ by these cells was not affected by pre-incubation with any of the extracts. On the other hand, all treatments significantly decreased (p < 0.05) IL-10 production. LPEs significantly reduced (p < 0.05) NO production; however, neither TC12 nor MFF 2.2 LPEs affected macrophage phagocytic activity or bactericidal capacity and, in addition, LPEs showed bacteriostatic activity towards S. Typhimurium and ETEC. Also, LPEs did not affect RAW 264.7 viability (> 90%) in concentrations up to 60 µg/ml SF for TC 12 and 1 µg/ml for MFF 2.2. These findings suggest that LPEs from native Bacillus possess immunomodulatory and antimicrobial properties, which could help control inflammation and inhibit pathogen growth during piglet weaning. According to preliminary in vivo studies, LPEs might offer a promising alternative to reduce antibiotic usage in pig husbandry.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"83"},"PeriodicalIF":1.8,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143012695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Septicemic omphalophlebitis by Streptococcus equi subsp. zooepidemicus in a southern right whale calf (Eubalaena australis).","authors":"Gabriela Hartmann, Cassiane Elisabete Lopes, Augusto de Dos Reis Paula, Milena Carolina Paz, Gabrielle Zanettini Tres, Vitor Gabriel Cardozo Silva, José Tiago Roza de Moraes, Matheus Dias Araújo, Richard Eduardo Hartz Machado, Jênifer Alves Terra, Luciana Sonne","doi":"10.1007/s11259-025-10650-x","DOIUrl":"10.1007/s11259-025-10650-x","url":null,"abstract":"<p><p>Southern right whales (Eubalaena australis) are mysticete cetaceans commonly observed in the coastal waters of Brazil, particularly in Santa Catarina State. There is limited understanding of the causes of calf mortality in this species, particularly concerning infectious diseases. We report a case of omphalophlebitis caused by Streptococcus equi subsp. zooepidemicus (S. zooepidemicus) that led to septicemia in a Southern right whale calf. Gross examination revealed an incompletely healed umbilicus with fibrin deposition and amorphous yellow material present in the lumen of the umbilical vein on the cut surface. The main histopathological findings showed fibrinosuppurative omphalophlebitis with numerous coccoid basophilic bacterial aggregates. These aggregates were also observed in the lamina propria, submucosa, and muscular layers of the small intestine and uterus, as well as in the interstitium of the kidneys and within blood vessels of the skin, skeletal muscle, heart, and ovaries. Tissue samples taken from the umbilicus and uterus were inoculated on 5% sheep blood agar and MacConkey agar. Small, transparent colonies that exhibited complete hemolysis were identified on blood agar. Gram staining revealed the presence of Gram-positive cocci arranged in chains. The bacterial isolate was analyzed using the MALDI-TOF technique, which confirmed its identity as S. zooepidemicus. The presence of S. equi antigen in the extra-umbilical aggregates was confirmed through immunohistochemistry. These findings underscore the significance of streptococcal infections in cetaceans and contribute valuable data regarding calf mortality in baleen whales. Furthermore, we provide new insights into the understanding of marine ecosystem health markers.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"84"},"PeriodicalIF":1.8,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143012691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of sectional anatomic, micro-computed tomographic, and magnetic resonance imaging features of the thorax in Syrian hamsters (Mesocricetus auratus).","authors":"Jamal Nourinezhad, Zahra Homayonnezhad, Abdolvahed Moarabi, Mohammad Ghasem Hanafi, Maciej Janeczek","doi":"10.1007/s11259-025-10649-4","DOIUrl":"10.1007/s11259-025-10649-4","url":null,"abstract":"<p><p>Clinically, the rodent thorax is important because of the variety of problems that may affect the heart, lungs, and other thoracic structures. Syrian hamsters are the most common pet and experimental hamster species. Sectional imaging of small mammals is widely increasing in use for clinical and research settings; however, no reports on the thoracic sectional imaging anatomy in this species have been made. Therefore, this study aimed at evaluating micro-computed tomography (MCT), magnetic resonance image (MRI), and gross sections of the Syrian hamster thorax. Eight healthy adult male and female Syrian hamsters were examined. Anesthetized hamsters were evaluated by MCT and 3 Tesla MRI. After imaging, the frozen slab sections were photographed, and identified anatomic structures were matched with structures on corresponding MCT and/or MRI images. Clinically relevant anatomic features of the Syrian hamster thorax that were identified on transverse and sagittal anatomic sections could be discerned on the corresponding MCT and MRI scans. The three matched images were exhibited the following features: (1) the narrow thoracic cavity and small lung space, (2) the heart positioning ventral and medial to lung, (3) heart ventricles locating towards the left side, and (4) parallel cardiac position relative to the sternum. The obtained results were similar to those have only been reported in rabbits, regardless of heart orientation and lung lobe covering the heart. The results of this study support the use of MCT and MRI as diagnostic tools in Syrian hamsters and provide reference values for the clinically relevant anatomic structures of thorax.</p>","PeriodicalId":23690,"journal":{"name":"Veterinary Research Communications","volume":"49 2","pages":"81"},"PeriodicalIF":1.8,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143012616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}