Researchers at the University of California, Los Angeles, published a study in the online journal "eNeuro" of the American Academy of Neuroscience on the 14th that they used RNA (ribonucleic acid) to successfully transfer the memory of a sea rabbit to another sea rabbit. The researchers say the new study will help develop new therapies to restore human memory.
Sea rabbits, also known as sea otters, are a type of snail. The central nervous system of the sea rabbit has about 20,000 neurons. Although it is far from being comparable to human 100 billion neurons, its cellular and molecular processes are very similar to human neurons, so it is considered to study human brain and memory. Excellent model.
In this study, the researchers enhanced their defensive contractions by a slight electric shock to the sea rabbit, a contractile response that protects themselves from potential damage. After being subjected to an electric shock "training", the sea rabbit will contract for a long time when it is touched for a duration of up to 50 seconds, while the normal sea rabbit's contraction response lasts only one second.
Subsequently, the researchers extracted RNA from the nervous system of the "trained" sea rabbits and normal sea rabbits, respectively, and injected them into the sea rabbits that had not received any electric shock. They found that sea rabbits injected with "trained" sea rabbit RNA showed a defensive contraction response of up to 40 seconds when touched, while those that injected unshocked sea rabbit RNA did not. . This suggests that the "study" sea rabbit's shock memory was transferred to the new receptor by RNA injection.
The researchers point out that their research is of great value in developing new therapies that restore human memory. David Grazman, a senior research author and professor of neurobiology at the University of California, Los Angeles, said that in the near future, scientists may be able to use RNA to improve the effects of Alzheimer's disease or post-traumatic stress disorder. Restore the memory of these patients to sleep. (Technology Daily)
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