Researchers at the Department of Pharmacology and Physiology of the Nervous System, Institute of Psychiatry and Neurology, Warsaw, Poland, published the results of their study, Neonatal administration of a vaccine preservative, thimerosal, produces lasting impairment of nociception [pain sense] and apparent activation of opioid system [controls pain, reward and addictive behaviors] in rats in Brain Research, Volume 1301, 16 November 2009, Pages 143-151. The authors are Mieszko Olczak, Michalina Duszczyk, Pawel Mierzejewski and Maria Dorota Majewska.
The researchers examined the pharmacokinetics [The process by which a drug is absorbed, distributed, metabolized, and eliminated by the body.] (1) for mercury in the brain, liver and kidneys. Stunning information states Pharmacokinetic analysis revealed that Hg [mercury] from THIM[EROSAL] injections accumulates in the rat brain in significant amounts and remains there longer than 30 days after the injection. [Emphasis added]