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Parkinson's & Movement disorders news

Neuroscience

New evidence about dopamine delivery explains why current Parkinson's treatments succeed—and their limitations

A McGill-led study is challenging a popular theory about how dopamine drives movement, a discovery that could shift how scientists think about Parkinson's disease treatments.

Parkinson's & Movement disorders

New ALS diagnostic blood test boasts 97% accuracy

ALS is a debilitating paralytic disease characterized as the death of upper and lower motor neurons. Fortunately, ALS is relatively rare, with an incidence rate of 1.6 per 100,000 adults, resulting in about 30,000 cases in ...

Neuroscience

Aging midbrain neurons face energy crisis linked to Parkinson's

Dopamine neurons in a part of the brain called the midbrain may, with aging, be increasingly susceptible to a vicious spiral of decline driven by fuel shortages, according to a study led by Weill Cornell Medicine investigators. ...

Parkinson's & Movement disorders

Early Parkinson's predictor found in daily step count

Oxford's Big Data Institute and Nuffield Department of Population Health report that daily step counts may help identify who will later be diagnosed with Parkinson's disease, with lower activity patterns acting as an early ...

Parkinson's & Movement disorders

In-home sensor technology offers smarter care for ALS patients

Bill Janes is on a mission to improve life for people with amyotrophic lateral sclerosis (ALS). As a licensed occupational therapist and researcher at the University of Missouri, he's seen firsthand how the disease can steal ...

Neuroscience

Brain markers could yield early clues into Parkinson's disease

Parkinson's disease affects more than 1.1 million people in the United States, progressively damaging the brain cells that control movement. By the time symptoms like tremors appear, patients have already lost around half ...

Parkinson's & Movement disorders

Untreated sleep apnea raises risk of Parkinson's, study finds

New research reveals that people with untreated obstructive sleep apnea have a higher risk of developing Parkinson's disease. However, they can significantly reduce the risk by improving the quality of their sleep by using ...

Neuroscience

Pause and rewind: How the brain keeps time to control action

Whether speaking or swinging a bat, precise and adaptable timing of movement is essential for everyday behavior. Although we do not have sensory organs like eyes or a nose to sense time, we can keep time and control the timing ...

Parkinson's & Movement disorders

Evidence builds for disrupted mitochondria as cause of Parkinson's

For decades, scientists have known that mitochondria, which produce energy inside our cells, malfunction in Parkinson's disease. But a critical question remained: do the failing mitochondria cause Parkinson's, or do they ...

Alzheimer's disease & dementia

What polymers can teach us about curing Alzheimer's disease

Researchers from Tokyo Metropolitan University have applied ideas from polymer physics to illuminate the mechanism behind a key pathology in Alzheimer's disease, the formation of fibrils of tau proteins. They showed that ...

Genetics

New genetic test targets elusive cause of rare movement disorder

Scientists at Brigham and Women's Hospital and Harvard Medical School have developed a targeted genetic test to improve diagnosis for X-linked dystonia-parkinsonism (XDP), a rare and disabling movement disorder that affects ...

Neuroscience

Neural circuit location of strong sense of discomfort found

Researchers have identified a new neural circuit in the brain which produces a strong sense of discomfort when activated. The discovery also allows them to show for the first time that the subthalamic nucleus, a structure ...

Parkinson's & Movement disorders

Parkinson's research: New hope when treatment options seem exhausted

As Parkinson's progresses, more invasive therapies are used, for example, those that require brain surgery. When these therapies no longer deliver the desired results, physicians often conclude that treatment options are ...

Parkinson's & Movement disorders

Parkinson's disease and normal aging

A new research perspective titled "Cholinergic centro-cingulate network in Parkinson disease and normal aging" has been published in Aging.

Neuroscience

Detecting Parkinson's disease decades before symptoms appear

Researchers at The Florey and Austin Health have shown it is possible to detect tell-tale signs of Parkinson's disease 20–30 years before symptoms appear. Their work opens the door to screening programs and preventative ...

Parkinson's & Movement disorders

A deep look into the progression of Parkinson's disease

Parkinson's disease is a complex neurodegenerative disorder that leads to the deterioration of specific types of neurons in the brain, resulting in a number of motor and non-motor symptoms. It is currently estimated that ...