Emily Tishler
Biology in the News
1.) The article “Scientists Develop Nasal Spray That Improves Memory” was published in Science Daily on October 2, 2009. 2.) This article talks about how a molecule from the body’s immune system, called interleukin-6, when administered through the nose helps the brain retain procedural and emotional memories. This molecule helps retain these memories during REM sleep. So, in order for the formation of long-term memory to occur, the person using interleukin-6 would need to get the proper amount of sleep. 3.) There was an experiment done on 17 healthy young men. In this experiment, the men had to read either an emotional or neutral short story, and they sprayed the fluid into their nostrils after studying, and went to sleep. The fluid sprayed contained either the molecule, or a placebo fluid. Sleep and brain activity was monitored throughout the night, and the next morning the subjects were asked to write down as many words from the story that they could remember. The results were that the men who had the IL-6 molecule could remember more words. 4.) I think that this article would be considered a positive report. I think that this product could be beneficial to many people. For example, for students, it would be beneficial as long as they study enough and get a good night’s sleep. Sometimes you might study enough the night before, and when it comes to the test and answer to a question is on the tip of your tongue; you know it, but you can’t seem to remember. This molecule might be able to help with these tip-of-thetongue moments. 5.) The article talks about how IL-6 was previously considered a by-product of inflammation, but now it is considered something that might actually affect memory and cognition. So, the significance of this article would be that scientists are finding new and different uses for molecules such as IL-6.