Articles tagged with Alzheimer Disease
Primary Progressive Aphasia is a mysterious neurological disease that affects speech and language abilities, with researchers discovering a genetic cause in a progranulin gene mutation. The study found the mutation in two unrelated families, providing a molecular approach to understanding the causes of the disease.
Researchers at the University of Toronto have identified a new gene, SORL1, associated with an increased risk of Alzheimer's disease in different ethnic groups. The discovery highlights the complexity of the disease's genetics and underscores the need for further replication studies.
Researchers identified a new genetic risk factor associated with late-onset Alzheimer's, implicating the SORL1 gene. Variants of this gene are linked to an increased risk of Alzheimer's, particularly in Caucasians, and may play a role in the production of toxic amyloid-beta fragments.
Researchers have identified a new genetic clue that may contribute to the development of late-onset Alzheimer's disease. Variations in the SORL1 gene were found to be associated with an increased risk of the disease, and altering the levels of this protein changed the way amyloid beta fragments were produced in cells.
Researchers discovered a new genetic variant SORL1 associated with late-onset Alzheimer's disease. The gene is linked to an increased risk of toxic amyloid beta peptides in the brain, leading to Alzheimer's disease.
A study found that individuals with higher folate levels through diet and supplements had a lower risk of developing Alzheimer's disease. The research, published in Archives of Neurology, suggests that elevated homocysteine levels may increase the risk for Alzheimer's disease.
Researchers discovered a genetic variation that enables adults to express higher levels of fetal hemoglobin, reducing their risk of Alzheimer's disease. The study also found that beta amyloid peptide has an affinity for adult hemoglobin, which may enhance its ability to wreak havoc in the brain.
A large study found that carriers of the APOE4 gene, which increases Alzheimer's risk, showed the same normal age-related cognitive declines as non-carriers. The research suggests the higher-risk genotype acts only in later years to accelerate disease progression.
A study found that herpes simplex virus, which causes cold sores, may be more active in the brains of people with the ApoE-4 gene variant, a known risk factor for Alzheimer's disease. The research suggests that ApoE-4 may alter the balance between the HSV life cycle forms, potentially increasing the risk of Alzheimer's.
A new study found that frontotemporal dementia (FTD) devastates Von Economo neurons (VENs), a unique brain cell type involved in social behavior and emotion. VEN loss is selective to FTD, unlike Alzheimer's disease (AD).
Researchers developed a three-hour workshop for healthcare providers to identify potentially unsafe drivers with dementia and encourage retirement from driving. The workshop resulted in a significant change in participants' willingness to ask patients about driving and document findings in the medical record.
A new imaging molecule, FDDNP, can detect and map plaques and tangles in the brains of people with Alzheimer's disease, enabling earlier diagnosis and potentially preventing progression. The compound binds to abnormal deposits on PET scans, correlating well with clinical diagnoses measured by memory tests.
High doses of lithium-like drugs inhibit GSK-3 beta and impair neuronal growth in mouse neurons, contradicting previous findings that suggest these drugs improve neuronal function. Researchers warn that using too much of these inhibitors can be detrimental to Alzheimer's treatment.
A study published in PLoS ONE suggests that a mere 5% increase in cognitive reserve can prevent one-third of Alzheimer's cases. The research supports the notion that public health policies focused on education are likely the best strategy for preventing Alzheimer's disease.
Researchers developed a new imaging technique that detects abnormal brain protein deposits associated with Alzheimer's disease in mild cognitive impairment. The study found that the method was more effective in differentiating patients with Alzheimer's disease from normal subjects, and tracked disease progression over a two-year period.
Researchers at USC discovered a link between low testosterone and the development of an Alzheimer's-like disease in mice. Testosterone treatment slowed progression of the disease, predicting potential benefits for humans.
A study found that oxidative stress contributes to neurodegeneration in a Drosophila model of Alzheimer's disease. Antioxidants, such as vitamin E, decreased neuron death in these insects.
Researchers have discovered that oxidative stress contributes to neurodegeneration in a Drosophila model of Alzheimer's disease. Additionally, they found that IFN-gamma stimulates osteoclast formation and bone loss, while targeting FoxM1 may limit liver cancer progression.
Scientists at Cornell University have discovered a panel of 23 protein biomarkers in cerebrospinal fluid that can identify patients living with Alzheimer's disease. The biomarkers, known as a 'fingerprint,' were validated through autopsy-proven tests and showed high sensitivity and accuracy.
Researchers found that seven commonly prescribed hypertension medications can prevent beta-amyloid build-up and slow cognitive decline in animal models. The study identifies Propranololo-HCL as a potential therapeutic agent for Alzheimer's prevention, but further human trials are needed to confirm these findings.
Researchers developed a synthetic protein fragment that blocks the interaction between Apo E and amyloid beta, reducing its aggregation by around 50% in mouse brains. The treatment showed no apparent inflammation or memory decline in animal tests.
Researchers found that memory problems in older adults are associated with Alzheimer's disease pathology in the brain. The study used memory complaint scores to identify individuals with brain changes linked to Alzheimer's disease, suggesting that memory complaints may serve as an early warning system.
A new study proposes that myelin, the fatty insulation around brain cells, is linked to various neuropsychiatric disorders such as schizophrenia and Alzheimer's. The research suggests that enhancing myelination through cholinergic treatments may improve neuron signaling and potentially delay disease progression.
Researchers at UCI found that cholinergic neuronal circuits rely on neurotrophin-3 to recognize and reach target nerve cells in the brain. This discovery may lead to potential treatments for Alzheimer's disease by inducing nerve fibers to regrow in the cerebral cortex.
A new research tool developed by Susan Liebman may provide a means for treating the earliest stage of Alzheimer's disease. The yeast model system detects A-beta small aggregate formation, allowing for high-throughput screening of compounds to inhibit aggregation.
The Gerontological Society of America has chosen University of Washington's Linda Teri to receive the 2006 M. Powell Lawton Award for her groundbreaking research on interventions for patients with Alzheimer's Disease. Her work challenges traditional assumptions and demonstrates effective caregiver training in reducing depression and im...
A psychosocial support program for Alzheimer's caregivers has been shown to delay nursing home placement by an average of 1.5 years, according to a long-term study published in Neurology. This delay can result in significant cost savings for families, estimated at over $100,000 annually.
A study found that enhanced caregiver support and counseling delayed nursing home placement by 1.5 years, improving caregivers' tolerance for patient behavior and increasing satisfaction with social support. This intervention could potentially save $90,000 per patient in nursing home care costs.
Despite advances in treatment, Alzheimer's care has remained consistent since Alois Alzheimer's first patient presentation in 1906. Non-pharmacological strategies like bright-light therapy and aromatherapy are still used today to manage symptoms.
Researchers at Georgetown University Medical Center have reported a compound called tramiprosate that reduced levels of a marker for the progression of Alzheimer's disease. The study suggests the potential for slowing down disease progression by targeting the amyloid peptide, considered to be the molecular cause of the disease.
Researchers discovered that GBA2 is necessary for normal sperm function and male fertility in mice. A lack of GBA2 results in abnormal sperm morphology and decreased fertility, similar to a treatment for Gaucher's disease.
Research by Stanford University found that decreased TGF-beta signaling in mice leads to increased neurodegeneration and beta-amyloid peptide accumulation, similar to Alzheimer's disease. Increasing TGF-beta signaling may potentially reduce neurodegeneration and be beneficial for individuals with AD.
Recent research published in the Lancet has shown that nursing home patients with severe Alzheimer's disease experienced significantly improved cognitive function when treated with donepezil. Additionally, data suggests that these drugs are effective in patients with milder forms of Alzheimer's disease, sparking hope for a potential re...
Researchers found that moderate amounts of alcohol improved laboratory rats' memories, especially in recalling negative events. High doses of alcohol damaged brain and liver tissue, suggesting a protective effect for low-level consumption.
Researchers at Washington University School of Medicine identified an enzyme that degrades a key component of brain plaques characteristic of Alzheimer's disease. The enzyme, matrix metalloproteinase 9 (MMP-9), breaks down abnormally aggregated proteins known as amyloid fibrils, which are the main ingredient of brain plaques.
A team of UCLA researchers has developed a new three-dimensional imaging technique that tracks the spread of Alzheimer's disease through the hippocampus. The study reveals distinct patterns of atrophy in specific brain regions, shedding light on the progression of the disease.
Researchers found that internet-accessible computer activities improved cognition in patients with Alzheimer's disease, even after the disease had advanced. The study showed that tasks aimed at increasing or maintaining mental function have a place in treating Alzheimer's alongside pharmacotherapy.
The UK government needs to show vocal support for NICE to ensure equity in the country's health system. NICE's guidance on restricting Alzheimer's disease drug use is necessary due to limited funds in the tax-funded health system.
A study has identified a human 'memory gene' called Kibra that plays a significant role in memory performance. The research, conducted by the Translational Genomics Research Institute and other institutions, found a strong association between Kibra and improved memory function.
Researchers found that marijuana-like compounds improved memory and reduced inflammation in older rats, suggesting potential therapeutic benefits for Alzheimer's disease. The study used synthetic compounds similar to marijuana to treat young and old rats, with the most notable improvement seen in older rats.
Researchers will focus on possible therapies aimed at affecting the peptide beta amyloid and the tau protein. The consortium's work will translate basic research knowledge into clinical trials of interventions that target Alzheimer's disease mechanisms.
Researchers at USC have made significant discoveries in the fight against Alzheimer's disease. A study found that hormone replacement therapy may lower Alzheimer's risk by as much as 50 percent in younger women. Additionally, a new treatment approach for ALS and Parkinson's disease has shown promising results, with exercise interventio...
A large-scale clinical trial funded by the NIH found that commonly prescribed antipsychotic medications for Alzheimer's patients with delusions and aggression have limited effectiveness, while increasing the risk of severe side effects. The study suggested that alternative treatments may be more suitable for this vulnerable population.
A nationwide study led by USC professor Lon Schneider found that most Alzheimer's patients prescribed antipsychotic drugs discontinue use due to severe side effects, despite showing some effectiveness in managing delusions and agitation. The study suggests that these medications should be used with caution and only when necessary.
Researchers at Karolinska Institutet found that omega-3 fatty acid supplements slowed cognitive decline in a subgroup of patients with very mild Alzheimer's disease, while no effect was seen in those with more advanced disease. The study suggests that omega-3 supplements may be beneficial in halting initial progression of the disease.
Eating a Mediterranean diet rich in fruits, vegetables, and olive oil is associated with a significantly lower risk of Alzheimer's disease. The study found that individuals with the highest diet scores had 68% lower odds of developing the disease, despite controlling for age and body mass index.
A clinical trial found that omega-3 fatty acid supplements slowed cognitive decline in patients with very mild Alzheimer's disease, but had no impact on those with more advanced cases. The study suggests that anti-inflammatory effects of omega-3 fatty acids may be beneficial in early-stage disease.
Researchers at Boston Children's Hospital have identified a novel pathway that influences the timing of nerve-cell production, favoring neuron over astrocyte formation. This discovery may provide insights into diseases such as Alzheimer's disease, schizophrenia, and autism.
A new study reveals a common pathological process between frontotemporal dementia and amyotrophic lateral sclerosis (ALS), with misfolded protein TDP-43 identified as a key component. This discovery may lead to a better understanding of these devastating neurological diseases.
Researchers have made significant advances in optics tests for early Alzheimer's detection, which may enable universal screening technologies. The tests can identify small molecular signs of the disease in the eye before brain pathology is present, raising hopes for early diagnosis and slowing disease progression.
Researchers at UCLA/VA have discovered that curcumin, a compound found in curry and turmeric, can enhance the immune system's ability to clear amyloid beta from the brain. In a study published in the Journal of Alzheimer's Disease, treated macrophages showed improved uptake of amyloid beta in 50% of patients with Alzheimer's disease.
A new analysis technique identifies cellular damage in the brain, allowing for earlier diagnosis and intervention of Alzheimer's disease. The study found increased water content in white-matter areas and brain atrophy in patients with mild cognitive impairment.
Researchers found that an enzyme called Cathepsin B breaks down the amyloid plaque protein in Alzheimer's disease, offering a potential new treatment approach. Increasing CatB activity reduced plaque deposits in mice with human APP, suggesting it could be a protective mechanism against AD.
A new study found that moderate consumption of Cabernet Sauvignon reduces AD-type â-amyloid neuropathology and memory deterioration in mice. The findings support epidemiological evidence suggesting moderate wine consumption may help prevent Alzheimer's clinical dementia.
The book commemorates Alois Alzheimer's discovery of Alzheimer's Disease (AD) and explores its evolution as a major public health problem, affecting 30-40 million people worldwide. The publication brings together key voices in the field to reflect on classic studies and chart the future direction of AD research.
A long-term study found that elderly participants who developed mild dementia showed a doubling of their average weight loss rate one year prior to diagnosis. Researchers believe this link may be useful for detecting Alzheimer's disease earlier.
A study of 120 older adults found significant memory problem complainants had reduced gray matter density in the brain, even without a diagnosis of Alzheimer's disease or mild cognitive impairment. This suggests that memory complaints may indicate an early 'pre-MCI' stage of dementia.
Accelerating weight loss before dementia onset is linked to Alzheimer's disease, according to a study of 449 healthy adults. Those who lost weight weighed about eight pounds less than those without the disease.
Researchers discovered that presenilins act as calcium channels, controlling the balance of calcium within cells. This finding may suggest a new avenue for treating Alzheimer's disease by restoring normal calcium levels. The study also highlights the potential for combination therapies targeting both amyloid and calcium signaling.
Researchers discovered that defects in a crucial brain protein can lead to memory loss, similar to Alzheimer's disease. Mice genetically engineered to have reduced levels of this protein displayed impaired social memory and recognition, but treatment with cholinesterase inhibitors improved their performance.