Differentiation of respiratory and abortigenic isolates of equine herpesvirus 1 by restriction endonucleases.
Abstract: Viruses classified by immunologic criteria as equine herpesvirus 1 cause respiratory disease and abortion in horses. Restriction endonuclease analyses of the DNA's of viruses from animals with respiratory disease and from aborted fetuses show that the patterns for respiratory viruses, while similar to each other, are entirely different from the patterns for fetal viruses. It is therefore proposed that the DNA restriction endonuclease patterns of fetal and respiratory viruses analyzed in this study be designated as prototypic of equine herpesvirus 1 and 4, respectively.
Publication Date: 1981-10-30 PubMed ID: 6270790DOI: 10.1126/science.6270790Google Scholar: Lookup
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- Journal Article
- Research Support
- Non-U.S. Gov't
- Research Support
- U.S. Gov't
- P.H.S.
Summary
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The research article primarily deals with the use of restriction endonuclease analyses to differentiate between respiratory and abortigenic variants of the equine herpesvirus 1 (EHV-1), which affects horses.
Understanding EHV-1
- Equine herpesvirus 1 (EHV-1) is a common virus causing respiratory disease and abortion in horses. Despite being classified as the same virus, the disease it manifests can vary widely based on its strain.
- The virus affects horses around the globe, causing significant economic losses within the equine industry. Hence, understanding its different variants is vital for efficient disease management.
Role of Restriction Endonucleases in the Study
- The observations in the research were made possible through restriction endonuclease analyses of EHV-1 DNA from different animal hosts.
- Restriction endonucleases are enzymes that can cut DNA strands at specific locations called restriction sites. By identifying these sites, scientists can create detailed ‘maps’ or patterns of DNA – a method sophisticatedly used in genetic engineering and genetics research.
Significant Findings
- Through the restriction endonuclease analyses of the EHV-1 DNA, the research determined that while the DNA patterns of respiratory disease-causing variants are similar, they are entirely different from the abortigenic (abortion-causing) variants.
- This finding suggests that there may be distinct genetic variations between abortigenic and respiratory forms of EHV-1, likely contributing to the differing disease manifestations.
Proposed Designations
- Based on the significant differences revealed in the restriction endonuclease patterns, the authors conclude by proposing that these patterns define two different ‘prototypes’ within EHV-1.
- The DNA pattern representative of abortigenic variants is proposed as the prototype for EHV-1, while the pattern of the respiratory disease-causing variants is suggested as the prototype for a new classification, EHV-4.
Implications of the Research
- The proposed distinction between EHV-1 and EHV-4 may be crucial in future diagnostic, prevention, and treatment strategies given the differing health impacts of each variant.
- Furthermore, this research underpins the significance of employing genetic methodologies such as restriction endonuclease analyses in virus study, highlighting their potential to reveal important distinctions within seemingly identical diseases.
Cite This Article
APA
Studdert MJ, Simpson T, Roizman B.
(1981).
Differentiation of respiratory and abortigenic isolates of equine herpesvirus 1 by restriction endonucleases.
Science, 214(4520), 562-564.
https://doi.org/10.1126/science.6270790 Publication
Researcher Affiliations
MeSH Terms
- Abortion, Veterinary / microbiology
- Animals
- DNA Restriction Enzymes
- DNA, Viral / genetics
- Female
- Fetus / microbiology
- Herpesviridae / genetics
- Herpesvirus 1, Equid / genetics
- Horse Diseases / microbiology
- Horses
- Pregnancy
Grant Funding
- CA 08494 / NCI NIH HHS
- CA 09241 / NCI NIH HHS
- CA 19264 / NCI NIH HHS
Citations
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