Linked Life Data

8693068

Source:http://linkedlifedata.com/resource/pubmed/id/8693068

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1996-8-29
pubmed:abstractText
The effect of exposure to chronic ultraviolet (UV) radiation on life span was examined in Monodelphis domestica, which is capable of photoreactivation repair of UV-radiation-induced pyrimidine dimers. Shaved Monodelphis were exposed to 500 J/m2 UV radiation, 500 J/m2 UV radiation then 90 min of photoreactivating light (PRL), or 90 min of PRL three times weekly for 104 weeks. Opossums were weighed weekly; samples for serum chemistry and hematology testing were obtained periodically. Complete postmortem examinations revealed a primary cause of death for each opossum. Meaningful differences among the groups in weight gain, serum chemistry values or hematology values were not seen. Significant life-shortening due to UV-radiation exposure was found for females but not males. Photoreactivation prolonged life only in the females exposed to UV radiation. Exposure to UV radiation was not associated with accelerated development of degenerative disease. Significant treatment-related mortality occurred in both male and female opossums exposed to UV radiation. Photoreactivation reduced the relative risk of skin tumors but not eye tumors in Monodelphis exposed to UV radiation. Eye and skin tumors were less likely to be a cause of death in UV-radiation-exposed opossums subsequently exposed to PRL than in opossums exposed to UV radiation alone. Females exposed only to UV radiation had an increased risk of skin tumor development relative to males.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0033-7587
pubmed:author
pubmed:issnType
Print
pubmed:volume
146
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
187-97
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Effect of chronic exposure to ultraviolet radiation and photoreactivation on life span and tumor development in the marsupial Monodelphis domestica.
pubmed:affiliation
Center for Photomedicine, Institute for Basic and Applied Medical Research, Lovelace Institutes, Albuquerque, New Mexico 87108, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.