Patients undergoing chemotherapy often experience cognitive effects such as memory impairment and difficulty concentrating — a condition commonly known as “chemo brain.”
MIT researchers have now shown that a noninvasive treatment that stimulates gamma frequency brain waves may hold promise for treating chemo brain. In a study of mice, they found that daily exposure to light and sound with a frequency of 40 hertz protected brain cells from chemotherapy-induced damage. The treatment also helped to prevent memory loss and impairment of other cognitive functions.
This treatment, which was originally developed as a way to treat Alzheimer’s disease, appears to have widespread effects that could help with a variety of neurological disorders, the researchers say.
“The treatment can reduce DNA damage, reduce inflammation, and increase the number of oligodendrocytes, which are the cells that produce myelin surrounding the axons,” says Li-Huei Tsai, director of MIT’s Picower Institute for Learning and Memory and Picower Professor in the MIT Department of Brain and Cognitive Sciences. “We also found that this treatment improved learning and memory, and enhanced executive function in the animals.”
