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Neurodegeneration – News and Features

A bird perching on a branch.
News

Birds Have Fewer Friends As They Age, and They May Not Care

A study led by Imperial College London shows that older sparrows have fewer friends, similar to humans. This decline in social connections may stem from a lack of evolutionary pressure.
A collection of pills in front of brain scan images.
News

Popular Diabetes and Weight-Loss Drug May Cut Alzheimer’s Disease Risk

Compared to seven other anti-diabetic drugs, semaglutide, a popular diabetes and weight-loss drug, may lower the risk of Alzheimer’s disease in people with type 2 diabetes, according to a new study.
A cerebral organoid showing rosettes (or whirls) of newly developing and migrating new neurons (shown in purplish-red).
News

Brain Organoids Reveal How One Genetic Mutation Leads to Autism

A study from Scripps Research utilizes patient-derived mini-brains to investigate how MEF2C mutations cause autism spectrum disorder (ASD) by disrupting brain cell balance. The research identified a potential treatment.
A man sleeps in a bed with striped bed linen.
News

Poor Sleep Linked to Signs of Brain Aging

People in early middle age with poor sleep quality show more signs of poor brain health in late middle age, highlighting the importance of sleep for maintaining brain health.
A plastic model of the human brain, bisected to reveal internal structures, and a plastic neuron beside it.
News

Brain Pathways That Control Dopamine Release May Influence Motor Control

In a new study, researchers have discovered two dopamine-related pathways that influence movement coordination.
A close up of an ear with a hearing aid.
News

Hearing Aids May Lower Parkinson’s Disease Risk

A study reveals a possible connection between hearing loss and Parkinson's disease among veterans. It suggests that those fitted with hearing aids within two years of experiencing hearing loss may lower their risk of developing Parkinson's.
A 3D model of a human brain.
News

Bilingualism May Help Maintain Protection From Alzheimer’s

A study shows that bilingualism may contribute to brain resilience in older adults. Researchers found that bilingual Alzheimer's patients had larger hippocampi than monolinguals.
The molecular structure of the phage DEV.
News

Structural Biology Reveals How a Phage Uses a Genome Ejection Motor To Infect Bacteria

Researchers have described the full molecular structure of the phage DEV, which uses a genome ejection motor to infect Pseudomonas aeruginosa.
A 3D model of a human brain.
News

Brain Volume Study Finds Genetic Links to Parkinson’s Disease and ADHD

Researchers from the ENIGMA consortium have identified 254 genetic variants affecting key deep brain structures involved in memory, movement, and emotion regulation. The study links these variants to increased risks for Parkinson's disease and ADHD.
Outline of brain blood circulation
News

Stroke Prevention: New Guidelines for Risk Factor Screening and Lifestyle Modification

The new primary prevention of stroke guidelines from the American Stroke Association urges healthcare professionals to screen people for stroke risk factors, including high blood pressure, elevated cholesterol, high blood sugar and obesity.
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