Lewy Bodies News and Research

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Dementia care services: an interview with Sue McLean

The term 'dementia' is used to describe symptoms that occur when the brain is affected by specific diseases and conditions, such as Alzheimer’s disease, vascular dementia, Lewy Bodies or Korsakoff’s syndrome.

From Community Integrated Care 15 Jan 2013

Dementia therapy: an interview with Assoc Prof. Olivier Piguet and Sharon Savage

Dementia is the umbrella term used to describe a number of neurodegenerative brain disorders that cause progressive changes in thinking abilities and behaviour. The kind of deficits experienced by individuals diagnosed with dementia depends on the location and severity of the pathology in the brain.

11 Dec 2012

Lewy pathology out of favor as Parkinson’s culprit

Neurodegeneration and cellular dysfunction may precede the appearance of Lewy bodies in the substantia nigra, shows research that challenges the role of Lewy pathology in Parkinson’s disease.

30 Nov 2012

Hsp104 protein switches mechanism to break up amyloid versus disordered clumps

Several fatal brain disorders, including Parkinson's disease, are connected by the misfolding of specific proteins into disordered clumps and stable, insoluble fibrils called amyloid. Amyloid fibrils are hard to break up due to their stable, ordered structure. For example, α-synuclein forms amyloid fibrils that accumulate in Lewy Bodies in Parkinson's disease. By contrast, protein clumps that accumulate in response to environmental stress, such as heat shock, possess a less stable, disordered architecture.

20 Nov 2012

Study shows how Parkinson's spreads and leads to nerve cell death

Understanding how any disease progresses is one of the first and most important steps towards finding treatments to stop it. This has been the case for such brain-degenerating conditions as Alzheimer's disease. Now, after several years of incremental study, researchers at the Perelman School of Medicine, University of Pennsylvania have been able to piece together important steps in how Parkinson's disease (PD) spreads from cell to cell and leads to nerve cell death.

17 Nov 2012

New findings on Alzheimer's disease presented at Neuroscience 2012

Curtailing the imminent rise in Alzheimer's disease (AD) will require early, accurate diagnostic tests and treatments, and researchers are closer to achieving these two goals. New findings in medical imaging, molecular analysis of neurological diseases, and development of treatments using mouse models were presented at Neuroscience 2012, the annual meeting of the Society for Neuroscience and the world's largest source of emerging news about brain science and health.

15 Oct 2012

Closing in on neurologic biomarker diagnosis

A panel of five cerebrospinal fluid biomarkers may help doctors to accurately diagnose patients with various forms of dementia and parkinsonian disorders, research published in the Archives of Neurology suggests.

30 Aug 2012

Working memory capacity in patients with Parkinson's can be improved with sleep

People with Parkinson's disease performed markedly better on a test of working memory after a night's sleep, and sleep disorders can interfere with that benefit, researchers have shown.

22 Aug 2012

Scientists identify abnormal gene that leads to Parkinson's

An international team including scientists from the University of Saskatchewan-Saskatoon Health Region and University of British Columbia, with the help of Saskatchewan Mennonite families, has identified an abnormal gene which leads to Parkinson's disease.

28 Jun 2012

Potential predictor of fast PD progression identified

The identification of genetic variants of the α-synuclein gene may help to predict which individuals with idiopathic Parkinson’s disease are likely to experience fast progression of motor symptoms, according to findings from a US-based genetic study.

14 Jun 2012

Colonic tissue may help predict Parkinson's disease

Two studies by neurological researchers at Rush University Medical Center suggest that, in the future, colonic tissue obtained during either colonoscopy or flexible sigmoidoscopy may be used to predict who will develop Parkinson's disease, a neurodegenerative disorder of aging that that leads to progressive deterioration of motor function due to loss of neurons in the brain that produce dopamine, a neurotransmitter essential to executing movement.

16 May 2012

Study demonstrates how Parkinson's disease protein can spread in patient's brain

Last year, researchers from the Perelman School of Medicine at the University of Pennsylvania found that small amounts of a misfolded brain protein can be taken up by healthy neurons, replicating within them to cause neurodegeneration. The protein, alpha-synuclein (a-syn), is commonly found in the brain, but forms characteristic clumps called Lewy bodies, in neurons of patients with Parkinson's disease (PD) and other neurodegenerative disorders.

18 Apr 2012

Study reveals how mutation shuts down DJ-1 protein's neuroprotective abilities

Purdue University researchers revealed how a mutation in a protein shuts down a protective function needed to prevent the death of neurons in Parkinson's disease, possibly opening the door to new drug strategies to treat the disorder.

22 Feb 2012

Study finds no support for primary pathogenic role of LBs in PD

The pathology of Parkinson's disease is characterized by a loss of dopamine-producing neurons in the pars compacta of the substantia nigra (SN), an area of the brain associated with motor control, along with the development of α-synuclein (αS) protein in the form of Lewy bodies (LB) in the neurons that survive. The spread of LB pathology is thought to progress along with the clinical course of Parkinson's disease, although recent studies suggest that they are not the toxic cause of cell death.

10 Jan 2012

ORMOSIL nanoparticles show promise as potential drug delivery vehicle

In the images of fruit flies, clusters of neurons are all lit up, forming a brightly glowing network of highways within the brain. It's exactly what University at Buffalo researcher Shermali Gunawardena was hoping to see: It meant that ORMOSIL, a novel class of nanoparticles, had successfully penetrated the insects' brains. And even after long-term exposure, the cells and the flies themselves remained unharmed.

10 Jan 2012

Novel class of nanoparticles hold promise as a potential vehicle for drug delivery

In the images of fruit flies, clusters of neurons are all lit up, forming a brightly glowing network of highways within the brain. It’s exactly what University at Buffalo researcher Shermali Gunawardena was hoping to see: It meant that ORMOSIL, a novel class of nanoparticles, had successfully penetrated the insects’ brains. And even after long-term exposure, the cells and the flies themselves remained unharmed.

9 Jan 2012

FDG-PET safe and accurate in detecting dementia, Alzheimer's

In a new review of imaging studies spanning more than ten years, scientists find that a method of positron emission tomography (PET) safely and accurately detects dementia, including the most common and devastating form among the elderly, Alzheimer's disease.

7 Jan 2012

AFFiRiS receives MJFF grant for clinical study of AFFITOPE PD01

The Michael J. Fox Foundation (MJFF) today announced that it has awarded $1.5 million to AFFiRiS AG, a Vienna, Austria-based biotech company, for a clinical study of AFFITOPE PD01, a first-of-its-kind Parkinson's disease (PD) vaccine.

12 Oct 2011

Hysterectomy increases brain iron levels in both men and women

The human body has a love-hate relationship with iron. Just the right amount is needed for proper cell function, yet too much is associated with brain diseases like Alzheimer's and Parkinson's.

7 Oct 2011

Scientists discover new gene mutation responsible for late-onset Parkinson's

Less than two months after publishing findings about a new gene linked to late-onset Parkinson's disease, the same team of scientists at the University of British Columbia and Vancouver Coastal Health Research Institute have discovered another gene responsible for the neurodegenerative disease - providing yet another target for potential treatments.

9 Sep 2011