Transplanting the bone marrow of young laboratory mice into old mice prevented cognitive decline in the old mice, preserving their memory and learning abilities, finds a new study, findings that could lead to therapies to slow progression of neurodegenerative diseases, including Alzheimer's.

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Transplanting the bone marrow of young laboratory mice into old mice prevented cognitive decline in the old mice, preserving their memory and learning abilities, finds a new study, findings that could lead to therapies to slow progression of neurodegenerative diseases, including Alzheimer's.