Enzyme that could boost super long-term memories

Increased levels of one natural brain enzyme supercharge rat memories, a study suggests. And it's not just new, short-term memories. The enzyme -- called PKM-zeta -- gives rats better recall of old remembrances. In a number of recent studies, researchers showed that they could make rats forget a range of old learned behaviors by blocking the protein in the brain. Rodents with too little PKM-zeta, for instance, didn't know to avoid liquids that had made them sick in the past. On the other hand, when the scientists increased this enzyme, rats that had this could remember unpleasant tastes that they had been given to experience 4 days before better than control rats without the increase. However, how this enzyme helps the retrieval of this memory is unknown. PKM-zeta seems to be a brain gardener. The enzyme waters and arranges neurons, keeping the connections between these memory-storing cells flowing. Even momentary disruptions to PKM-zeta can obliterate many long-term memories seemingly for good. This is a very powerful enzyme that could help Alzheimer's or trauma victims to control their memory. I feel that this could be an artificial boost that is very powerful for people who need powerful memory, like soldiers, old people or young children.