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Short-Term Memory Aided by Single Dose of Methylene Blue in Early Study

(Alzheimer's News Today) A single oral dose of methylene blue is able to increase the response of brain regions that control attention and short-term memory, according to University of Texas Health Science Center researchers. Methylene blue has proven useful as a surgical stain to guide procedures and in the treatment of methemoglobinemia, a blood disorder in which hemoglobin in red blood cells does not effectively release oxygen to the tissues.
This study suggests that methylene blue may be also used to enhance memory formation in patients with cognitive impairments, such as those with Alzheimer’s disease... The effects of methylene blue on long-term memory were demonstrated in animal models more than 30 years ago. The treatment was shown to improve spatial memory retention, the type of memory responsible for recording information about the environment and spacial localization — required to navigate around a familiar city, for example — in healthy and Alzheimer’s mice models.
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