ArticleBMC veterinary research2019
Simultaneous evaluation of diagnostic marker utility for enzootic bovine leukosis.
Article in BMC veterinary research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 12 citations in OpenAlex.
- Clinical Stage-Specific Alteration of hsa-miR-424-5p in Milk Small Extracellular Vesicles from Bovine Leukemia Virus Infection to Progression of Enzootic Bovine Leukosis.Animals : an open access journal from MDPI · 2026Article
- Importance of continuous monitoring of bovine leukaemia virus infection on farms in bovine leukaemia virus-endemic areas of Japan.Veterinary record open · 2025Article
- Circulating Cell-Free DNA of Bovine Leukemia Virus: A Promising Biomarker for Enzootic Bovine Leukosis.Microbiology and immunology · 2025Article
- Estimation of the proviral load in Japanese Black cattle infected with bovine leukemia virus by statistical modeling.The Journal of veterinary medical science · 2024Article
- Serum bta-miRNA-375 as a potential biomarker for the early diagnosis of enzootic bovine leukosis.PloS one · 2024Article
- Clone Dynamics and Its Application for the Diagnosis of Enzootic Bovine Leukosis.Journal of virology · 2023Article
- Time course changes in peripheral B-cell clonality in a Japanese Black bull with enzootic bovine leukosis.The Journal of veterinary medical science · 2022Article
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8 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundEnzootic bovine leukosis (EBL) is a disease of cattle caused by bovine leukemia virus (BLV). More than 60% of BLV-infected cattle remain subclinical and are thus referred to as aleukemic (AL) cattle. Approximately 30% of infected cattle show a relatively stable increase in the number of B lymphocytes; these cattle are termed persistent lymphocytosis (PL) cattle. A small percentage of infected cattle develop BLV-induced B cell lymphoma (EBL) and are called EBL cattle. Due to the increase in the number of BLV-infected cattle, the number of EBL cattle has featured a corresponding increase over recent years in Japan. Several diagnostic criteria for EBL (e.g., enlarged superficial lymph nodes, protrusion of the eye, increased peripheral blood lymphocyte, etc.) are used for on-farm diagnosis and antemortem tests at slaughterhouses. Since the slaughter of EBL cattle for human consumption is not allowed, on-farm detection of EBL cattle is important for reducing the economic loss incurred by farms. Therefore, establishing new diagnostic markers to improve the efficiency and accuracy of the antemortem detection of EBL cattle is a critical, unmet need. To simultaneously evaluate the utility of candidate markers, this study measured the values of each marker using the blood samples of 687 cattle with various clinical statuses of BLV infection (EBL, PL, AL and non-infected cattle).
resultsSensitivity (Se) and specificity (Sp) were highest for the serum thymidine kinase (TK) followed by the serum lactate dehydrogenase (LDH) isozyme 2. The number of peripheral blood lymphocytes and proviral load in peripheral blood had the lowest Se and Sp. The values of all markers other than TK were influenced by the sex of the tested cattle.
conclusionsAlthough tLDH and its isozymes (LDHs) may be influenced by the sex of the tested cattle, the high accuracy of TK and LDH2 as well as accessibility and simplicity of the protocol used to measure these enzymes recommend the utility of TK and LDHs for EBL cattle detection. Using these markers for screening followed by the application of existing diagnostic criteria may improve the efficiency and accuracy of EBL cattle detection on farms, thereby contributing to the reduction of economic losses in farms.
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