Linked Life Data

302246

Source:http://linkedlifedata.com/resource/pubmed/id/302246

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1977-10-14
pubmed:abstractText
Tumour-related recovery in rat skin was estimated from the dependence of tumour yield on time between split doses of electron radiation. Tumour yield versus dose was established at nine dose points, and at three points the dose was split into two equal fractions spaced 0-25, 3-2 or 6-3 hours apart. After irradiation the rats were observed periodically for at least 64 weeks, and at death the tumours were examined histologically. The dependence of yield on dose for single doses was consistent with a quadratic function up to a peak yield at about 1600 rad. The effect of split doses on tumour yield depended on the position on the dose--response curve. At the lowest split dose, the yield declined with a half-time of about 1-8 hours. At the intermediate split dose, an initial increase was followed by a decline with a half-time of about 3-9 hours. At the highest split dose, the tumour yield increased with time between exposures. Fractionation-induced increases in tumour yield were explained as a sparing effect on cell lethality, whereas tumour-related recovery per se was indicated at the lower two doses.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0020-7616
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
135-44
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Split-dose recovery for radiation-induced tumours in rat skin.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.