First Conclusive Evidence Of Alzheimer's-like Brain Tangles In Nonhuman Primates Found

Researchers have discovered the first conclusive evidence of Alzheimer's-like neurofibrillary brain tangles in an aged nonhuman primate. They also discovered deposits of beta-amyloid protein in plaques and blood vessels of the chimp's brain tissue, although these changes were infrequent compared to Alzheimer's in humans. The finding could move the scientific community closer to understanding why age-related neurodegenerative diseases are uniquely human and seem to never fully manifest in other species, including our closest evolutionary relative, the chimpanzee.

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