Role of RNA and protein synthesis in memory formation - PubMed (original) (raw)
Review
Role of RNA and protein synthesis in memory formation
T C Rainbow. Neurochem Res. 1979 Jun.
Abstract
A brief review is given of experiments which are concerned with the hypothesis that brain RNA and protein synthesis are directly involved in the establishment of long-term memory. It is concluded that these experiments neither support or refute this hypothesis. A convincing demonstration is lacking of interanimal memory transfer by injection of macromolecular extracts. The majority of experiments which attempt to correlate increased macromolecular synthesis with learning use radioactive precursor methods and these studies do not exclude possible changes in precursor specific activity as the cause of the increased labeling. Although some studies find directly observable changes in brain macromolecules in response to training, their relationship to memory formation is unclear. It is possible that these changes represent only an enhanced production of constitutive macromolecules in response to an increase in cerebral metabolism during training, rather than molecular changes that are directly involved with modifying synaptic connectivity. Inhibitors of cerebral protein synthesis block memory formation, but these drugs are not pharmacologically specific and this complicates the interpretation of these studies.
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