Abstract
Trimethyltin (TMT) is a toxic substance formerly used as a catalyst in the production of organic substances, as well as in industry and agriculture. TMT poisoning has caused death or severe injury in many dozens of people. The toxicity of TMT is mediated by dose dependent selective damage to the limbic system in humans and other animals, specifically the degeneration of CA1 neurons in the hippocampus. The typical symptoms include memory loss and decreased learning ability. Using knowledge gained in previous studies of global ischaemia, we used delayed postconditioning after TMT intoxication (8 mg/kg i.p.), consisting of applying a stressor (BR, bradykinin 150 μg/kg i.p.) 24 or 48 hours after the injection of TMT. We found that BR had preventive effects on neurodegenerative changes as well as learning and memory deficits induced by TMT intoxication.
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