Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7-8
pubmed:dateCreated
1988-12-12
pubmed:abstractText
Following a case report that oral nifedipine can suppress the secretion of noradrenaline by phaeochromocytoma, we examined the effect of nifedipine on the tumour kinetics of tracer 131I-meta-iodobenzylguanidine (131I-mIBG) in five patients referred for mIBG radionuclide therapy for disseminated malignant phaeochromocytoma. In one subject a striking modification of mIBG kinetics was found that resulted in a doubling of the absorbed dose to tumour while the patient was taking nifedipine. At the same time, urinary excretion of noradrenaline was suppressed by a factor of three. The effect of nifedipine in this patient was confirmed when tracer studies were repeated nine months later. The changes in tumour kinetics were shown to be due to prolonged retention of mIBG rather than increased tumour blood flow or alteration of the curve of mIBG plasma concentration as a function of time.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0340-6997
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
345-8
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Modification by nifedipine of 131I-meta-iodobenzylguanidine kinetics in malignant phaeochromocytoma.
pubmed:affiliation
Department of Nuclear Medicine, Southampton General Hospital, UK.
pubmed:publicationType
Journal Article