Abstract:
:The uptake, distribution, and elimination of 3H-toluene in various tissues of rats were studied after inhalation or after gastric intubation. The maximum radioactivity was measured 2--3 h after gastric intubation in tissues, except in white adipose tissue, where the peak radioactivity was reached at 5 h. After inhalation exposure, the uptake to various tissues was very rapid. The maximum radioactivity in most tissues was reached in 15--30 min. The accumulation was slowest in white adipose tissue, where it took 1--2 h. The radioactivity in tissues decreased after inhalation exposure more rapidly than after gastric intubation. Brown adipose tissue and white adipose tissue were different from other tissues in their ability to retain toluene. Twenty-four hours after exposures, only 1% or less of the initial radioactivity was found in tissues other than white adipose tissue, in which the corresponding value was 3.5--5%. The results show a very rapid absorption and distribution of toluene after inhalation and a retention of radioactivity in white adipose tissue. After oral ingestion the distribution showed a similar but much slower pattern.
journal_name
Arch Toxicoljournal_title
Archives of toxicologyauthors
Pyykkö K,Tähti H,Vapaatalo Hdoi
10.1007/BF00293651subject
Has Abstractpub_date
1977-09-28 00:00:00pages
169-76issue
3eissn
0340-5761issn
1432-0738journal_volume
38pub_type
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