Monkeys Also Get Alzheimer's
Very old rhesus monkeys exhibit similar patterns of brain pathology as human Alzheimer’s patients, researchers report in the journal Alzheimer’s & Dementia
Researchers at Yale, collaborating with those at Boston University and the Yerkes National Primate Research Center, examined brain samples from tissue banks of monkeys that had reached extreme age, and observed neurofibrillary tangles forming in the same types of neurons as seen in humans. The pathological changes were first evident in the entorhinal cortex, the gateway needed to form new memories, and later appeared in the prefrontal cortex, a newly evolved brain region associated with higher cognition and abstract reasoning.
Researchers have been hampered in studying this more common, late-onset form of Alzheimer’s, a condition impossible to model in mice.
“We hope that we will now have the opportunity to learn what is initiating Alzheimer’s disease-like pathology in the aging brain,” said lead author Constantinos Paspalas, research scientist in Department of Neuroscience at Yale.
“This new information may provide novel therapeutic strategies to protect against early stages of degeneration, and thus decrease the risk of Alzheimer’s disease,” added senior author, Amy Arnsten, professor of neuroscience.
This article has been republished from materials provided by Yale News. Note: material may have been edited for length and content. For further information, please contact the cited source.
Combination Chemotherapy Could Significantly Improve Deadly Brain Tumor TreatmentNews
A team led by Massachusetts General Hospital (MGH) investigators has found that adding the chemotherapy drug hydroxyurea to the current chemotherapy protocol for glioblastoma significantly increased survival in animal models.READ MORE
Purine Synthesis in Neuron-Like Cells InvestigatedNews
Neuron-like cells created from a readily available cell line have allowed researchers to investigate how the human brain makes a metabolic building block essential for the survival of all living organisms.READ MORE
All in a Droplet: Atomic Resolution of ALS Protein ResolvedNews
Researchers have described atom-by-atom changes in a family of proteins linked to amyotrophic lateral sclerosis (ALS), a group of brain disorders known as frontotemporal dementia and degenerative diseases of muscle and bone.READ MORE