Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1997-6-26
pubmed:abstractText
Historically, considerable variation has been reported in the type and severity of clinical and hematologic abnormalities associated with canine ehrlichiosis. Because of difficulties associated with the isolation of intracellular monocytic Ehrlichia species in tissue culture systems, few E. canis isolates are available for comparative microbiologic studies. To address the issue of potential E. canis antigenic diversity in different regions of the world, dog sera reactive by indirect fluorescent antibody testing to E. canis (Florida) antigen were obtained from France, Israel, Italy, the United States, the Virgin Islands, and Zimbabwe. Ehrlichia canis proteins were separated by sodium dodecyl sulfate polyacrylamide gel electrophoresis, and at least 5 sera from each region were stained by western immunoblotting. Antibody immunodominance was scored based upon staining intensity. There was relative homogeneity in the immunogenic protein reactions to E. canis antigens. Of the 58 E. canis reactive sera, 54 samples resulted in immunoblot patterns indicative of chronic ehrlichiosis. Four reactive sera (reciprocal titers of 160-2,560) did not recognize any genus-specific antigens resulting in protein bands between 22 and 29 kD, indicating serologic cross-reactivity with other microorganisms. Relatively homogenous immunoblot patterns, consistent with the reported immunoblot response of dogs with experimental chronic ehrlichiosis, were observed with sera from Arizona, France, Israel, North Carolina, Texas, and the Virgin Islands. In contrast, unique major proteins were observed in dog sera from Italy and Zimbabwe. Our results indicate that although relatively homogeneous, antigenic diversity may exist among E. canis organisms in different regions of the world.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1040-6387
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
32-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Immunoblot analysis of the immunoglobulin G response to Ehrlichia canis in dogs: an international survey.
pubmed:affiliation
Department of Companion Animal and Special Species Medicine, College of Veterinary Medicine, North Carolina State University, Raleigh 27606, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't