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More Evidence that Humans Do Appear to Create New Neurons in Old Age
More Evidence that Humans Do Appear to Create New Neurons in Old Age
Despite doubts last year about human adult neurogenesis, a study shows even 80-year-olds develop new cells in the hippocampus, but such growth is diminished in patients with Alzheimer’s disease.
More Evidence that Humans Do Appear to Create New Neurons in Old Age
More Evidence that Humans Do Appear to Create New Neurons in Old Age

Despite doubts last year about human adult neurogenesis, a study shows even 80-year-olds develop new cells in the hippocampus, but such growth is diminished in patients with Alzheimer’s disease.

Despite doubts last year about human adult neurogenesis, a study shows even 80-year-olds develop new cells in the hippocampus, but such growth is diminished in patients with Alzheimer’s disease.

Alzheimer's Disease, neuroscience

human macrophage
Image of the Day: Alzheimer’s Genes
Nicoletta Lanese | Aug 19, 2019 | 1 min read
Mutations within the MS4A gene cluster have been linked to changes in protein levels that affect disease risk.
fyn tau tangles frontotemporal dementia alzheimer's disease memory
Image of the Day: Clustered Memories
Nicoletta Lanese | Aug 5, 2019 | 1 min read
Using super-resolution microscopy, scientists learned how mutant tau causes a memory-related protein to clump up in mouse neurons.
rahul desikan als amyotrophic lateral sclerosis
Neuroscientist Rahul Desikan Dies
Kerry Grens | Jul 19, 2019 | 2 min read
He developed an MRI-based map of the human cortex, discovered genetic risk factors for neurodegenerative diseases, and wrote about his struggles with ALS.
Rapidly Flashing Lights and Sounds Reduces Alzheimer’s in Mice
Jef Akst | Mar 15, 2019 | 2 min read
Exposing mice to an hour of 40-hertz stimuli every day for a week reduced levels of amyloid-β plaques and tau protein, and improved cognition.
New Map Shows Brain Changes Associated with Alzheimer’s
Catherine Offord | Feb 4, 2019 | 2 min read
The protein expression data, which are freely available online, could help identify new drug targets for the disease.
Protein Changes Detected in Blood Years Before Alzheimer’s Onset
Jef Akst | Jan 21, 2019 | 2 min read
The observation could pave the way for a blood test to predict disease progression in people with a genetic predisposition to developing the neurodegenerative disorder.
Noninvasive Brain Stimulation Modulates Memory Networks
Jef Akst | Nov 1, 2018 | 4 min read
Studies have demonstrated that magnetic and electrical currents can enhance memory in human subjects, but the technology is not yet ready for prime time.
Alzheimer’s Gene Affects Energy Consumption in Mouse Brains
Sukanya Charuchandra | Oct 1, 2018 | 2 min read
One variant limited the brain’s ability to use glucose.
Exercise’s Benefits to Dementia Can Be Made Chemically
Ruth Williams | Sep 6, 2018 | 3 min read
Boosting both neurogenesis and a brain-derived growth factor can mimic the cognitive benefits of exercise in a mouse mode of Alzheimer’s disease.
Alzheimer’s Drug Slows Symptoms, Reduces Plaques
Kerry Grens | Jul 26, 2018 | 2 min read
In a clinical trial, patients on the highest injected dose had 30 percent less cognitive decline over time than people on a placebo.
Higher Blood Pressure Has Links to Brain Lesions in Older Adults
Sukanya Charuchandra | Jul 13, 2018 | 2 min read
In a longitudinal study, researchers find that elderly people with higher pressure were more likely to show signs of Alzheimer’s disease in brain tissue.
Amyloid plaques (stained for amyloid-? peptide) detected in a post-mortem brain sample of a patient with Alzheimer's disease. Purple purple dots in the background are the nuclei of neurons and glia.
Herpes Viruses Implicated in Alzheimer’s Disease
Anna Azvolinsky | Jun 21, 2018 | 5 min read

A new study shows that the brains of Alzheimer’s disease patients have a greater viral load, while another study in mice shows infection leads to amyloid-β build up.

Researchers Develop Potential Blood Test for Alzheimer’s Disease
Catherine Offord | Feb 1, 2018 | 2 min read
The test uses levels of plasma amyloid-β to estimate the buildup of protein plaques in the brain.
Pfizer to Halt Alzheimer’s and Parkinson’s Drug Research
Jim Daley | Jan 7, 2018 | 1 min read
The company’s recent effort to find new treatments for Alzheimer’s ended in disappointment.
Research Links Gut Health to Neurodegeneration
Jef Akst | Nov 13, 2017 | 2 min read
Rodent studies presented at the Society for Neuroscience meeting this week tie pathologies in the gastrointestinal tract or microbiome composition with Parkinson’s and Alzheimer’s diseases.
Nasser Zawia: An American Scientist Born in Yemen
Bob Grant | Mar 23, 2017 | 4 min read
The University of Rhode Island neurotoxicologist and dean came to the U.S. for college in the 1980s. 
As the Brain Ages, Glial-Cell Gene Expression Changes Most
Ashley P. Taylor | Jan 10, 2017 | 3 min read
Researchers describe how gene expression in different human brain regions is altered with age.
Alzheimer’s Immunotherapy Pioneer Dies
Ben Andrew Henry | Oct 11, 2016 | 1 min read
Dale Schenk, who worked to develop a vaccine for Alzheimer’s disease, has passed away at age 59.
Week in Review: September 5–9
Jef Akst | Sep 8, 2016 | 2 min read
Environmental magnetite in the human brain; prion structure takes shape; watching E. coli evolve in real time; learning from others’ behavior 
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