Articles tagged with Parkinsons Disease
Scientists at the Max Planck Institute of Neurobiology have demonstrated using a new animal model that nerve cells do not begin to die until three conditions are met in Parkinson's disease. This finding is an important step forward in understanding this illness and may offer a potential new direction for therapy.
Scientists at UCSF have developed a novel cell-based strategy to treat Parkinson's disease by transplanting embryonic neurons into the striatum, improving motor function and balance in rats. The approach may offer a more precise effect than traditional strategies and has implications for other neurodegenerative diseases.
A new guideline recommends treatments to help people with Parkinson's disease manage sleep disorders, constipation and sexual problems. The guideline suggests medications like sildenafil citrate and isosmotic macrogol to improve erectile dysfunction and constipation.
A study of over 305,000 people found that those who smoked for 40+ years were 46% less likely to develop Parkinson's disease. However, the risk did not decrease with the number of cigarettes smoked per day.
University of Alabama scientists find that ampicillin enhances the normal function of torsinA protein in cells affected by dystonia and Parkinson's disease. The drug restored normal movement to mice and improved cellular protection against stress, leading to potential new treatments for these debilitating conditions.
People with Parkinson's disease struggle to recognize emotions in others' faces and voices. Deep brain stimulation appears to exacerbate this issue, particularly with fear and sadness expressions.
A study of 136,474 participants found that regular ibuprofen users were 40% less likely to develop Parkinson's disease. Higher doses of ibuprofen also showed a reduced risk of developing the disease.
Researchers at McGill University discover a molecular link between Parkinson's disease and impaired nerve cell communication. They found that parkin protein binds to endophilin-A, affecting synaptic transmission and potentially leading to dopamine neuron death.
A population-based study confirms exposure to TCE increases the risk of Parkinson's disease, with workers five and a half times more likely to develop the condition than those not exposed. The study used twins to evaluate environmental risk factors and found significant associations between TCE exposure and Parkinson's disease.
Research reveals that people with Parkinson's disease are often isolated and stigmatized based on their communication style. The study shows that negative perceptions of speech patterns can limit opportunities for social interaction and reduce full participation in society.
Researchers are testing whether simulation driving can improve Parkinson's patients' driving skills and reduce their threefold increased risk of car accidents. The five-week training program involves simulator-based driving tests and on-road evaluations to assess the impact of cognitive-improving activities.
Parkinson's disease is more common in the Midwest and Northeast, with twice as likely to affect whites and Hispanics compared to blacks and Asians. Environmental factors, such as chemical exposure in farming and agriculture, are considered a major contributor to the disease.
Researchers at Emory University School of Medicine have identified a novel compound, 7,8-dihydroxyflavone, that mimics the brain's growth factor and protects against neurological disease damage. The flavonoid compound shows potential as a new class of brain-protecting drugs with low chronic toxicity.
A large-scale population-based study found that specific sub-class of dihydropyridine cardiovascular medications decreased the risk of Parkinson's disease by 26-30%. The study suggests that these medications' ability to cross the blood-brain barrier may be key to their neuroprotective effects.
Researchers developed a brain-based model to understand how Parkinson's affects learning and attention, highlighting the role of dopamine in non-motor symptoms. The study shows that dopamine medications enhance attentional performance in patients.
Treadmill training can improve walking movements and reduce gait hypokinesia in Parkinson's patients. The systematic review found positive effects on walking speed, stride length, and walking distance but no improvement in cadence.
A study reveals a genetic variant that increases the risk of Parkinson's disease, affecting vitamin B6 metabolism and dopamine production. This interaction with dietary habits may aid in developing individualized therapies.
Researchers found that pathological gamblers with Parkinson's Disease exhibited poor decision-making and abnormal social behavior. They performed poorly in the Iowa Gambling Task and showed difficulties in forming close relationships.
Researchers identified dopamine agonist withdrawal syndrome (DAWS) in patients with Parkinson's disease who reduced their medication dosage. DAWS causes anxiety, panic attacks, depression, and other symptoms that are not alleviated by other treatments.
A study using positron emission tomography (PET) brain scans identified different forms of Parkinsonism with high accuracy. The research found that image-based classification had excellent specificity and positive predictive value for idiopathic Parkinson's disease, multiple system atrophy, and progressive supranuclear palsy.
A large-scale study demonstrates that transplanted cells produced dopamine, leading to improved motor symptoms and brain function. Long-term clinical outcomes revealed sustained improvements over a four-year period.
Researchers discovered four small molecules capable of protecting cells from alpha-synuclein toxicity, a hallmark of Parkinson's disease. The compounds improved protein trafficking and decreased mitochondrial damage in multiple models, suggesting potential therapeutic avenues for the disease.
Scientists have found that activating Retinoid X Receptor (RXR) increases dopamine cell survival in models of Parkinson's disease, providing a novel strategy for treating the condition. The study used two cellular models to explore the neuroprotective function of RXR ligands LG268 and XCT.
Researchers studied gait to identify physical signs of Parkinson's disease in its early stages. The team found that people with Parkinson's had significantly asymmetrical arm swings compared to those without the disease.
Researchers at the Muhammad Ali Parkinson Center are conducting a study to determine if simple exercise can help protect neurons in the brain from Parkinson's disease. Participants will follow a structured exercise program called pole-striding, which involves walking with ski-like poles, for 12 weeks.
Researchers found that ghrelin is protective of dopamine neurons and can slow the development of Parkinson's disease. Ghrelin supplementation in mice showed increased dopamine production and reduced loss compared to controls.
Dr. Larisch's research links Parkin and ARTS proteins to excess brain cell death in PD, a progressive neurodegenerative disorder. This discovery may lead to better treatment of patients suffering from Parkinson's Disease.
Scientists at Garvan Institute of Medical Research developed a mathematical model and microscopy method to reveal mechanisms behind dopamine release. The study found that dopamine release is regulated by factors such as the frequency of nerve impulses, making it possible to develop more effective treatments.
ISU researchers have discovered a compound that neutralizes the cell-killing kinase-C and allows dopamine-producing cells to survive and function. This finding brings hope for a possible cure for Parkinson's disease by targeting the protein responsible for killing these cells.
Stereotactic radiosurgery is an effective and safe method for eliminating tremors caused by Parkinson's disease and essential tremor. Long-term results show that SRS favorsably compares to deep brain stimulation and radiofrequency treatments in terms of tremor relief and complications.
Researchers found that simvastatin reverses biochemical changes caused by Parkinson's disease in mice. The drug blocks the activity of p21Ras protein and protects neurons, normalizing neurotransmitter levels and improving motor functions.
A new study found that carriers of Gaucher disease face a significantly higher risk of developing Parkinson's disease, with the risk being 5 times greater than the general public. The study also found that GBA alterations increase the likelihood of early disease onset.
Researchers from Yerkes National Primate Research Center are presenting on various topics, including Alzheimer's disease, Parkinson's disease, and memory function. The study aims to improve human health by understanding the evolutionary specializations of the human brain and its relationship with neurological disorders.
Michigan State University has been awarded a $6.2 million Morris K. Udall Center of Excellence for Parkinson's disease research grant. The grant makes MSU's College of Human Medicine a major player in research of the degenerative disease, with eight investigators expected to join the center by next summer.
Scientists found that Parkinson's disease progresses more slowly in participants with the highest levels of urate. This discovery supports the idea that patients and doctors may be able to better predict the course of the illness.
Higher urate levels in patients with early Parkinson's disease are associated with slower clinical decline. The study found that elevated urate levels in the cerebrospinal fluid were inversely related to disease progression.
A study funded by NIH found that individuals with higher urate levels in their blood and cerebrospinal fluid have a slower rate of disease progression. A clinical trial is underway to examine the safety and benefits of supplemental urate elevation for recently diagnosed patients.
Research identifies opposing roles for phosphorylated alpha-synuclein amino acids in Parkinson's disease. Phosphorylation at Tyr125 protects nerve cells from alpha-synuclein toxicity, whereas Ser129 phosphorylation increases toxic oligomers.
Researchers confirm association between higher blood urate levels and slower disease progression in Parkinson's patients. The study suggests that elevated urate levels may have a protective influence on brain cells, but the exact mechanism is unclear.
A driving simulation test involving 67 people with mild to moderate Parkinson's disease and 51 healthy individuals found that those with Parkinson's were more likely to crash in foggy conditions. Their reaction time was also longer, averaging 2.7 seconds compared to 2.1 seconds for healthy drivers.
A large-scale clinical trial aims to determine if high doses of coenzyme Q10 can slow Parkinson's disease progression. Studies have shown that Parkinson's patients have impaired mitochondrial function and low levels of coenzyme Q10, which can be protected by the enzyme.
A new study found that occupational pesticide exposure is associated with an increased risk of developing Parkinson's disease. The study, published in Archives of Neurology, investigated the link between pesticide use and parkinsonism, and found that certain pesticides more than doubled the risk of the disease.
Researchers at Mayo Clinic have discovered a single gene promoting development of essential tremor in some patients and Parkinson's disease in others. The study found a significant association between the LINGO1 gene variant identified in Iceland to both disorders, with mutations potentially responsible for five percent of patients.
Researchers have discovered a way to regulate gene therapy for Parkinson's disease by introducing an 'off switch' using the antibiotic doxycycline. This breakthrough addresses safety concerns and paves the way for safer treatment options.
Researchers have identified a new nerve growth factor, MANF, that can halt the progress of Parkinson's disease and restore damaged cells in rats. The study shows promising results, suggesting that MANF may be a highly significant finding in respect to growth factor therapy for PD.
Researchers developed a new technology using ambient sound to aid Parkinson's patients speaking louder and more clearly. The system, which plays background babble noise when the patient begins to speak, shows significant improvement in speech changes after eight weeks of training.
Parkinson-associated genes PINK1 and Parkin functionally interact to maintain mitochondrial function, impairing neuron loss
A landmark study will follow 200 people with PD for at least two years to examine the impact of disease progression on day-to-day function and quality of life. The research aims to advance understanding of how interventions like exercise affect changes in quality of life and mobility over time.
Researchers found that H5N1 flu infection causes a 17% loss of dopamine-producing cells and accumulation of alpha-synuclein protein, key findings linked to Parkinson's disease. The study suggests the virus primes the brain for further damage from environmental toxins or other infections.
A study published in Cortex found that Parkinson's patients struggle with grammatically complex sentences due to degeneration of dopamine-secreting neurons. Eye-tracking data revealed slower response times when processing relative clauses, but not at the end of sentences.
Researchers created a fly model to study Parkinson's-associated dementia, finding that sleep loss caused long-lasting cognitive impairments. Curcumin blocked this effect, restoring normal learning abilities in genetically modified flies.
The study reveals that alpha-synuclein aggregates can pass to new, healthy cells, contributing to the progression of Parkinson's disease. The researchers found that cell-to-cell transmission of alpha-synuclein occurs through endocytosis and is linked to impaired quality-control systems in recipient cells.
A rapid and inexpensive drug-screening method developed by Whitehead Institute scientists uses baker's yeast to synthesize and screen molecules, cutting testing time to weeks. The technique targets protein-protein interactions found in cellular processes, offering new potential for treating diseases like Parkinson's.
Individuals with higher levels of education and significant impairment by Parkinson's disease require treatment earlier than others. Higher education is independently associated with an increased need for symptomatic treatment.
Researchers have developed a novel drug discovery tool that uses baker's yeast to rapidly search for drugs to treat Parkinson's disease. The tool identifies cyclic peptides with protective effects on yeast cells and neurons in an animal model of the disease, offering new hope for treatment breakthroughs.
Researchers at UT Southwestern Medical Center found people with Parkinson's disease have significantly higher blood levels of a particular pesticide than healthy individuals. The study may provide the basis for a beta-HCH blood test to identify those at risk for developing the disease.
Researchers at Queen's University have created eye movement tests to aid in understanding childhood brain development, healthy aging, and the diagnosis of Attention Deficit Hyperactivity Disorder (ADHD) and Parkinson's disease. The study found that children scored low on these tests, while those with ADHD showed decreased normal brain ...
Researchers present findings on stimulating metabotropic glutamate receptors to stop glutamate release in brain cells, potentially reversing Parkinson's disease symptoms. Current treatments only alleviate symptoms, but new approach aims to protect and repair dying cells.
A new class of pulsars detected by NASA's Fermi Gamma-ray Space Telescope reveals the existence of a large population of radio-quiet gamma-ray pulsars. The study identifies 16 pulsars using computational techniques developed to analyze data from the Fermi Large Area Telescope.
Researchers found that Parkinson's patients exhibit a selective impairment in learning from reward, but not from negative outcomes. Treatment with dopamine agonists improves learning from positive outcomes, but impairs learning from negative outcomes.