Daily study: brain peptide can inhibit pain

[Hong Kong News Agency] the brain is one of the most mysterious places for animals Researchers from Hokkaido University, Japan, published a statement the day before yesterday, said that in their experiments, using the peptide of brain endocrine, they have successfully suppressed the pain caused by pain, and determined the part in the brain that produces such pain If the rats have experienced pain in a certain place, when they get close to the place again, they will activate the relevant memory and generate painful feelings Pain caused by memory is contained The research team led by Professor Nan Yawen of Graduate School of Hokkaido University, in the experiment, curbed the role of corticotropin releasing factor in brain endocrine of rats, or promoted the role of neuropeptide Y The results showed that rats stayed in the place where they had been stimulated by pain for a long time, and they should have avoided this The researchers thus believe that this is because the painful feelings caused by memory in the brain of rats have been successfully suppressed The researchers found that these two peptides only play a role in the type 2 nerve cells of the bed nucleus of the stria terminalis in the central part of the brain, so as to determine that this is the place where pain occurs They further found that after pain stimulation, the effect of corticotropin releasing factor would be enhanced, causing hyperactivity of the above-mentioned type 2 nerve cells, thus causing pain, while neuropeptide Y could reduce the effect of corticotropin releasing factor, thus inhibiting pain feeling According to Nan, the findings could be used to treat depression caused by long-term pain, or to relieve the pain of cancer patients The paper introducing the results has been published in the online edition of the American Journal of neuroscience on Wednesday.