title: Regional distribution study of brain perfusion and metabolic agents in normal and tumour bearing rat brains using autoradiographic technique.
abstract: Regional distribution of brain perfusion imaging agents, [131I]N,N,N'-trimethyl-N'-[2-hydroxy-3-methyl-5-iodobenzyl]1,3 propanediamine (HIPDM) and [131I]-N-isopropyl-p-iodoamphetamine (IMP), was compared with the distribution of patterns of [14C]L-methionine and [14C]D-glucose in normal and tumour bearing rat brains using autoradiographic technique. There was higher concentration of the radiopharmaceutical in grey than white matter in normal rat brain. Autoradiographs of brain tumour sections showed very low uptake of [131I]HIPDM and [131I]IMP as compared to normal brain tissue. There was moderate concentration of [14C]D-glucose and avid uptake of [14C]L-methionine in tumours. Autoradiographic study is useful for evaluating distribution patterns of radiopharmaceuticals.
authors.affiliation: Radiation Medicine Centre, Bhabha Atomic Research Centre, Parel, Bombay, India.
authors.forename: S
authors.initials: S
authors.lastname: Murugesan
authors.forename: M C
authors.initials: MC
authors.lastname: Patel
authors.forename: P
authors.initials: P
authors.lastname: Ramanathan
authors.forename: A M
authors.initials: AM
authors.lastname: Samuel
authors.forename: V S
authors.initials: VS
authors.lastname: Lalitharao
authors.forename: N
authors.initials: N
authors.lastname: Hasgekar
mesh_terms: D000662:Amphetamines / Q000493:pharmacokinetics; D000818:Animals; D001345:Autoradiography; D001921:Brain / Q000033:anatomy & histology; D001923:Brain Chemistry; D001932:Brain Neoplasms / Q000139:chemically induced / Q000473:pathology; D005038:Ethylnitrosourea; D005260:Female; D005947:Glucose / Q000378:metabolism; D007457:Iodine Radioisotopes; D007462:Iodobenzenes / Q000493:pharmacokinetics; D020367:Iofetamine; D008715:Methionine / Q000378:metabolism; D009374:Neoplasms, Experimental / Q000378:metabolism*; D010477:Perfusion; D011247:Pregnancy; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000662:Amphetamines; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; C036739:N,N,N'-trimethyl-N'-(2-hydroxy-3-methyl-5-iodobenzyl)-1,3-propanediamine; D008715:Methionine; D020367:Iofetamine; D005947:Glucose; D005038:Ethylnitrosourea