Journal of Veterinary Diagnostic Investigation最新文献_第2页

T- and B-cell lymphomas in 2 captive green tree pythons. 2条圈养绿树蟒的T细胞和b细胞淋巴瘤。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-13 DOI: 10.1177/10406387251337369

Sara Pagliarani, Luke Haydock, Leonardo Susta, Pauline Delnatte, Cédric B Larouche, Mauricio Seguel

{"title":"T- and B-cell lymphomas in 2 captive green tree pythons.","authors":"Sara Pagliarani, Luke Haydock, Leonardo Susta, Pauline Delnatte, Cédric B Larouche, Mauricio Seguel","doi":"10.1177/10406387251337369","DOIUrl":"10.1177/10406387251337369","url":null,"abstract":"Two captive 19-y-old green tree pythons (Morelia viridis), a male and a female, were diagnosed with lymphoma. At autopsy, the female was in poor body condition and had an extensive subcutaneous soft tissue mass along the ribs. The mass was composed of numerous neoplastic round cells that were also present in the liver and spleen and within blood vessels. Neoplastic cells had marked, diffuse membranous-to-cytoplasmic immunolabeling for CD3, consistent with disseminated leukemic T-cell lymphoma. The male had a history of chronic spinal deformities and was in poor body condition. All examined organs contained variable numbers of neoplastic round cells with moderate-to-marked nuclear-to-cytoplasmic immunolabeling for PAX5, consistent with B-cell lymphoma. Here we describe 2 distinct immunophenotypes of lymphomas, including a B-cell neoplasm that has not been reported previously in snakes, to our knowledge. Our 2 cases highlight the potential value of CD3 and PAX5 immunohistochemical markers in ophidians and expand the spectrum of neoplastic diseases documented in reptiles. Understanding the clinical significance of lymphoma in snakes, including its potential impact on prognosis and challenges in management, is critical to refining therapeutic approaches in captive reptile care.","PeriodicalId":17579,"journal":{"name":"Journal of Veterinary Diagnostic Investigation","volume":" ","pages":"10406387251337369"},"PeriodicalIF":1.2,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12075172/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144002448","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}

引用次数: 0

Concurrent pancreatic exocrine hyperplasia and adenomas in a Eurasian otter with pleuropneumonia and urolithiasis. 并发胰腺外分泌增生和腺瘤的欧亚水獭胸膜肺炎和尿石症。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-13 DOI: 10.1177/10406387251338327

Jeong-Eun Yeom, Min-Gyeong Seo, Kook-Young Han, Sang-Hyun Kim, Eun-Joo Lee, Kyu-Shik Jeong, Il-Hwa Hong

引用次数: 0

Myofibroblast differentiation in a cat with eosinophilic sclerosing fibroplasia involving mesenteric lymph nodes and liver. 猫嗜酸性硬化性纤维增生累及肠系膜淋巴结和肝脏的肌成纤维细胞分化。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-12 DOI: 10.1177/10406387251339813

Darian L Giannino, Mason C Jager, Hannah Brodlie, Rory C Chien

{"title":"Myofibroblast differentiation in a cat with eosinophilic sclerosing fibroplasia involving mesenteric lymph nodes and liver.","authors":"Darian L Giannino, Mason C Jager, Hannah Brodlie, Rory C Chien","doi":"10.1177/10406387251339813","DOIUrl":"10.1177/10406387251339813","url":null,"abstract":"Feline eosinophilic sclerosing fibroplasia (FESF) is a unique fibroproliferative disease of cats marked by eosinophilic inflammation and extensive tissue fibroplasia that affects the gastrointestinal tract predominantly. Biopsy specimens were examined from an 11-y-old, spayed female, domestic shorthair cat with a 1-2-mo history of vomiting and anorexia, abdominal lymphadenopathy, and multiple hepatic nodules. Microscopically, the liver nodules and enlarged mesenteric lymph node had profound eosinophilic inflammation and sclerosis characteristic of FESF; the stomach, duodenum, jejunum, and ileum were unremarkable. Immunohistochemistry (IHC) was performed to further characterize the cell populations. Increased intralesional mesenchymal cells, interpreted as reactive fibroblasts, were positive with antibodies against smooth muscle actin (SMA), indicating a myofibroblast phenotype. Abundant intralesional macrophages were ionized calcium-binding adapter molecule 1 (IBA1) immunolabeled. Dual IHC of SMA and IBA1 revealed several double-positive mesenchymal cells, suggesting macrophage-to-myofibroblast transition (MMT). Our findings underscore the important role of macrophages not only in chronic inflammation, but also in tissue repair and fibrosis. Our case was a unique presentation of FESF with primary liver and mesenteric lymph node involvement, and without overt gastrointestinal lesions. Additionally, to our knowledge, myofibroblast phenoconversion and MMT have not been reported previously in cats, giving new insights to the pathogenesis of this poorly understood disease entity.","PeriodicalId":17579,"journal":{"name":"Journal of Veterinary Diagnostic Investigation","volume":" ","pages":"10406387251339813"},"PeriodicalIF":1.2,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12075169/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144015512","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}

引用次数: 0

Human hepatoma HepG2 cells are susceptible to infection by domestic cat hepadnavirus. 人肝癌HepG2细胞易受家猫肝病毒感染。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-12 DOI: 10.1177/10406387251339765

Sabrina Wahyu Wardhani, Tanit Kasantikul, Chutchai Piewbang, Somporn Techangamsuwan

{"title":"Human hepatoma HepG2 cells are susceptible to infection by domestic cat hepadnavirus.","authors":"Sabrina Wahyu Wardhani, Tanit Kasantikul, Chutchai Piewbang, Somporn Techangamsuwan","doi":"10.1177/10406387251339765","DOIUrl":"10.1177/10406387251339765","url":null,"abstract":"Domestic cat hepadnavirus (DCHBV; Hepadnaviridae, Orthohepadnavirus felisdomestici) is a hepadnavirus identified in domestic cats that is associated with liver conditions that resemble hepatitis B virus (HBV) infections in humans. Despite its significance for feline health, research on DCHBV has been hindered due to the absence of suitable in vitro models, particularly the lack of feline hepatocyte cell lines. We found that cells of the human-derived hepatoma cell line, HepG2, were susceptible to DCHBV infection. DCHBV DNA and RNA were detected from the infected HepG2 cells at 48 h postinfection; DCHBV core protein and viral particles were detected within the infected cells. No significant enhancement of viral infection was observed by the addition of dimethyl sulfoxide or dexamethasone to the culture medium. However, higher levels of viral uptake were noted at 4 d postinfection when using a concentrated viral inoculum. Although HepG2 cells supported initial DCHBV infection, viral load declined over time during serial infection experiments. The DCHBV infection of HepG2 cells is limited and declines over successive passages, potentially due to insufficient cellular factors for sustained viral replication. Our findings establish a foundation for further investigations of DCHBV biology and highlight the necessity for identifying alternative cell lines to improve long-term infection models.","PeriodicalId":17579,"journal":{"name":"Journal of Veterinary Diagnostic Investigation","volume":" ","pages":"10406387251339765"},"PeriodicalIF":1.2,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12069310/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144010930","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}

引用次数: 0

Acute fatal Leptospira kirschneri infection in suckling lambs and calves in Uruguay. 乌拉圭哺乳羔羊和小牛急性致死性克氏钩端螺旋体感染。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-12 DOI: 10.1177/10406387251341234

Mizael Machado, Camila Ciuffo, Federico Giannitti, Caroline da Silva Silveira, Yisell Perdomo, Cintia R R Queiroz-Machado, Rafael Carriquiry, Leticia Zarantonelli, Alejo Menchaca

{"title":"Acute fatal Leptospira kirschneri infection in suckling lambs and calves in Uruguay.","authors":"Mizael Machado, Camila Ciuffo, Federico Giannitti, Caroline da Silva Silveira, Yisell Perdomo, Cintia R R Queiroz-Machado, Rafael Carriquiry, Leticia Zarantonelli, Alejo Menchaca","doi":"10.1177/10406387251341234","DOIUrl":"10.1177/10406387251341234","url":null,"abstract":"Leptospira kirschneri is an emerging human and animal pathogen. Here we describe 2 unrelated outbreaks of acute fatal leptospirosis caused by L. kirschneri in suckling lambs and calves diagnosed following a flooding event in the spring of 2023 in northern Uruguay. In outbreak 1, the sheep flock was raised in a low-lying area previously used for rice cultivation; 20 lambs died after developing apathy, jaundice, and hemoglobinuria. In outbreak 2, 2 calves were found dead. At autopsy, 4 lambs and 2 calves had marked jaundice, hemoglobinuria, dark-red kidneys, and hepatomegaly. Microscopically, we found marked hemoglobinuric nephrosis, lymphohistiocytic tubulointerstitial nephritis, hepatocellular dissociation, and random hepatocellular necrosis with periportal lymphohistiocytic hepatitis and canalicular cholestasis. Positive immunostaining for Leptospira sp. was found in the liver (lamb C), both the liver and kidney (calf B), and the liver (calf A). Leptospira kirschneri was PCR-confirmed using kidney and liver samples from the autopsied animals. Acute leptospirosis caused by L. kirschneri has not been reported previously in sheep and cattle, to our knowledge. Our findings highlight that L. kirschneri infection can cause acute leptospirosis in unvaccinated lambs and calves.","PeriodicalId":17579,"journal":{"name":"Journal of Veterinary Diagnostic Investigation","volume":" ","pages":"10406387251341234"},"PeriodicalIF":1.2,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12075170/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144007532","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}

引用次数: 0

Multiple spinal nerve sheath tumors in a dog resembling schwannomatosis in humans. 狗的多发性脊髓神经鞘肿瘤类似于人类的神经鞘瘤病。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-07 DOI: 10.1177/10406387251329049

Jun Lai Tse, Agustín Rebollada-Merino, Martí Pumarola, Ana Liza Ortiz, Cristina Toni

引用次数: 0

Laboratory assessment of recovery of porcine circovirus 2 and porcine reproductive and respiratory syndrome virus using 2 commercial hollow-fiber ultrafilters. 使用两种商用中空纤维超滤器回收猪圆环病毒 2 和猪繁殖与呼吸综合征病毒的实验室评估。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-01 Epub Date: 2025-02-28 DOI: 10.1177/10406387251322506

Aaron D Firnstahl, Gabrielle E Doughan, Sarah A Opelt, Rachel M Cook, Joseph A Heffron, Karen M Krueger, Mark A Borchardt, Locke A Karriker, Joel P Stokdyk, Tucker R Burch

{"title":"Laboratory assessment of recovery of porcine circovirus 2 and porcine reproductive and respiratory syndrome virus using 2 commercial hollow-fiber ultrafilters.","authors":"Aaron D Firnstahl, Gabrielle E Doughan, Sarah A Opelt, Rachel M Cook, Joseph A Heffron, Karen M Krueger, Mark A Borchardt, Locke A Karriker, Joel P Stokdyk, Tucker R Burch","doi":"10.1177/10406387251322506","DOIUrl":"10.1177/10406387251322506","url":null,"abstract":"Groundwater near swine farms is an uninvestigated reservoir for porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circoviruses (PCVs). Enteric microorganisms are often collected from groundwater via dead-end ultrafiltration, but recovery of PRRSV and PCV with this method has not been assessed. We recovered PRRSV2 and PCV2 by dead-end ultrafiltration followed by polyethylene glycol (PEG) precipitation, nucleic acid extraction, and reverse-transcription quantitative real-time PCR. We also compared 2 commercial hemodialysis ultrafilters (Asahi Kasei Rexeed-25A, Nipro Elisio-25H) and compared PRRSV2 recovery in these filters to other waterborne microorganisms. On average, 8 ± 1% of PRRSV2 was recovered by dead-end ultrafiltration and PEG precipitation, compared to 25 ± 6% for adenovirus 41. Full-process recovery of bacteria in the same filters was 5-15%; Cryptosporidium parvum recovery was 42 ± 12%. PCV2 was detected in 4 of 12 replicate filters, but low stock concentrations precluded quantitative recovery estimates. Elisio-25H ultrafilters performed similarly to Rexeed-25A filters for all organisms tested and is an effective replacement for the Rexeed-25A, which is no longer available in the United States. Our recovery of PRRSV2 and PCV2 by dead-end ultrafiltration in the laboratory suggests that PRRSV2 detection limits are as low as 3-50 genomic copies/L in sample volumes of 100-1,500 L. Based on quantitative microbial risk assessment, these concentrations are relevant to PRRSV2 infection rates in the U.S. swine herd.","PeriodicalId":17579,"journal":{"name":"Journal of Veterinary Diagnostic Investigation","volume":" ","pages":"439-447"},"PeriodicalIF":1.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11871577/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143531634","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}

引用次数: 0

High prevalence and broad geographic distribution of urine shedding of bovine polyomavirus 1 (Epsilonpolyomavirus bovis) by cattle in Uruguay. 乌拉圭牛尿中牛多瘤病毒 1（Epsilonpolyomavirus bovis）的高流行率和广泛地理分布。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-01 Epub Date: 2025-02-20 DOI: 10.1177/10406387251321421

Matías Castells, Leticia Zarantonelli, Caroline da Silva Silveira, Rodney Colina, Federico Giannitti

{"title":"High prevalence and broad geographic distribution of urine shedding of bovine polyomavirus 1 (Epsilonpolyomavirus bovis) by cattle in Uruguay.","authors":"Matías Castells, Leticia Zarantonelli, Caroline da Silva Silveira, Rodney Colina, Federico Giannitti","doi":"10.1177/10406387251321421","DOIUrl":"10.1177/10406387251321421","url":null,"abstract":"In 2021, bovine polyomavirus 1 (BoPyV1; Polyomaviridae, Epsilonpolyomavirus bovis) was associated with nephritis in an aborted bovine fetus in Uruguay, with renal lesions resembling those typical of polyomavirus-associated nephropathy of humans. Given that little is known about the epidemiology of BoPyV1 infection in cattle, we screened for BoPyV1 in urine samples collected in 2015-2017 from beef and dairy herds from 12 of the 19 departments in Uruguay. We tested for BoPyV1 by PCR in 156 urine pools and 249 individual urine samples from 42 herds. We detected BoPyV1 in 33 of 42 (79%) farms across 100% of the departments studied, in similar proportions in beef (22 of 30; 73%) and dairy (11 of 12; 92%) herds. At the animal level, BoPyV1 was detected in 80 of 249 (32%) animals; this frequency was significantly higher in dairy (51 of 119; 43%) than beef (29 of 130; 22%) cattle, and in cows (36 of 81; 44%) than heifers (32 of 121; 26%). BoPyV1 strains circulating in Uruguay have a high degree (98.7-100%) of sequence identity at the major capsid protein VP1, which is slightly lower (96.2-99.7%) than for strains from other countries. We conclude that shedding of BoPyV1 in the urine of dairy and beef cattle is prevalent and geographically widespread in Uruguay.","PeriodicalId":17579,"journal":{"name":"Journal of Veterinary Diagnostic Investigation","volume":" ","pages":"489-494"},"PeriodicalIF":1.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11843559/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143468509","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}

引用次数: 0

Bovine abortions due to the rare Salmonella serovars Kingston and Kedougou. 因罕见的金斯顿沙门氏菌和克杜古沙门氏菌引起的牛流产。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-01 Epub Date: 2025-02-28 DOI: 10.1177/10406387251324261

Laurie Boucher, Pierre Hélie, Julie-Hélène Fairbrother, Sonia Chénier, Samuel Morin, Guillaume St-Jean

引用次数: 0

Enterotoxemia in a 2-day-old lamb produced by a Clostridium perfringens type D lambda toxin-positive strain. 产气荚膜梭菌D型毒素阳性菌株引起的2日龄羔羊肠毒血症。

IF 1.2 3区农林科学

Journal of Veterinary Diagnostic Investigation Pub Date : 2025-05-01 Epub Date: 2025-02-27 DOI: 10.1177/10406387251320943

Kaylin Moctezuma, Hernando D Acevedo, Eileen E Henderson, Javier Asin, John M Adaska, Francisco A Uzal

{"title":"Enterotoxemia in a 2-day-old lamb produced by a Clostridium perfringens type D lambda toxin-positive strain.","authors":"Kaylin Moctezuma, Hernando D Acevedo, Eileen E Henderson, Javier Asin, John M Adaska, Francisco A Uzal","doi":"10.1177/10406387251320943","DOIUrl":"10.1177/10406387251320943","url":null,"abstract":"Clostridium perfringens type D is a gram-positive bacterium that causes enterotoxemia in sheep, goats, and, less frequently, other animals. This microorganism encodes 2 major toxins, alpha (CPA) and epsilon (ETX). Enterotoxemia occurs when epsilon prototoxin (pETX) is produced in the intestine and is activated by one or more proteases before being absorbed into the general circulation. Traditionally, it was believed that neonatal animals were not susceptible to type D enterotoxemia due to the trypsin-inhibitory action of colostrum in the intestinal tract and the lack of protease activation of pETX, although cases of enterotoxemia have been reported in 2 neonatal goat kids. A 2-d-old lamb, with a history of frailty, hunched posture, shallow breathing, and diarrhea followed by death, was submitted for postmortem examination and diagnostic workup. Autopsy revealed hydropericardium, pulmonary edema, and congested intestines. Histologically, there was pulmonary congestion and edema, and intestinal congestion. C. perfringens type D carrying the gene for lambda toxin was isolated from the small intestine and colon. Both CPA and ETX were detected in the small intestine and colon contents. We speculate that lambda toxin (a protease) activated pETX, and that ETX, in turn, produced enterotoxemia in this lamb.","PeriodicalId":17579,"journal":{"name":"Journal of Veterinary Diagnostic Investigation","volume":" ","pages":"504-506"},"PeriodicalIF":1.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11869215/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523807","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}

引用次数: 0