Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
2009-4-24
pubmed:abstractText
Experiments were carried out to investigate whether papillomas could be induced on the teat skin of heifers by intradermal injection with bovine papillomavirus type 9 (BPV-9). Three heifers (#1 and 2, two 0.5-year-old Holsteins; #3, a 1.5-year-old Japanese Black) were injected with BPV-9 and one heifer (#4, a 0.5-year-old Holstein) was mock-infected. Viral DNA load in the inocula was quantified by real-time polymerase chain reaction assay and adjusted to 1.56x10(12) copies per injection. Papillomas appeared at the injection sites in the BPV-9-injected heifers #1, 2 and 3 and grew over the 8 (#1 and 2) and 4 (#3)mo observation period, respectively. However, no papillomas were found in the mock-infected heifer #4. The experimentally induced papillomas were excised and examined. Histologically, the lesions were characterized by hyperplasia of the epidermis with hyperkeratosis and marked acanthosis and were morphologically similar to naturally occurring lesions. BPV-9 DNA and bovine papillomavirus capsid antigen were abundant in the lesions. Therefore, we conclude that BPV-9 is an etiological agent causing epithelial papillomas on the teat skin of heifers.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0378-1135
pubmed:author
pubmed:issnType
Print
pubmed:day
12
pubmed:volume
136
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
347-51
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Bovine papillomavirus type 9 induces epithelial papillomas on the teat skin of heifers.
pubmed:affiliation
Hokkaido Research Station, National Institute of Animal Health, 4 Hitsujigaoka, Toyohira, Sapporo 062-0045, Japan. hatama@affrc.go.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't