1. 14C-labelled trichloroethylene was injected i.p. into male mice (10 mumole/g of b.w.). The radioactivity irreversibly bound to hepatic protein reached highest levels after 6 h: 2 nmole/mg in cytosol protein, 4.4 nmole/mg in mitochondrial protein, and 7.6 nmole/mg in microsomal protein. 2. The com
Irreversible protein binding of14C-imipramine in rats in vivo
โ Scribed by H. Kappus
- Publisher
- Springer-Verlag
- Year
- 1976
- Tongue
- English
- Weight
- 320 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0340-5761
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โฆ Synopsis
Forty-eight hours after a single dose of 14C-imipramine to rats, 14Cradioactivity could be measured in the following organs: liver > kidney > serum > fat > spleen > duodenum > lung > muscle and brain. Liver microsomes contained the main part of radioactivity derived from '4C-imipramine.
After exhaustive extraction, only the proteins of liver, kidney, spleen, lung and serum contained measurable amounts of radioactive labeling. The greatest amount of ~4C-imipramine irreversibly bound to proteins was detected in liver microsomes.
The question, as to whether the irreversible protein binding of imipramine, if it occurs during therapy, results in toxic side-effects, is discussed.
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