Articles tagged with Dementia
Researchers at Drexel University used GPT-3 to spot early signs of Alzheimer's in spontaneous speech, achieving 80% accuracy. The program analyzed word-use, sentence structure and meaning from transcripts to identify characteristic profiles of Alzheimer's speech.
A digital detection of dementia study aims to evaluate the practical use of an AI tool for early identification of Alzheimer's disease and related dementias. The study uses a passive digital marker and patient-reported outcomes survey, which have shown potential in detecting mild cognitive impairment and reducing healthcare costs.
A new study from Ohio State University found that middle-aged smokers are more likely to report memory loss and confusion compared to nonsmokers. Quitting smoking is associated with lower cognitive decline risk, even recently, suggesting quitting may have benefits for brain health.
A recent study has identified common and unique cellular processes in six neurodegenerative diseases, providing new insights into the underlying causes of these conditions. The research used machine learning analysis to compare RNA markers in whole blood samples from patients with distinct diseases, revealing eight shared themes across...
A retrospective cohort study of 28,311 COVID-19 patients in Germany found a significant association between dementia and increased risk of death. The association was weaker than previously reported studies, suggesting potential changes in the impact of dementia on COVID-19 mortality over time.
A recent study from the University of Eastern Finland suggests that previous traumatic brain injury may increase the risk of frontotemporal dementia (FTD), particularly in individuals without a genetic mutation. Patients who suffered head injuries developed FTD earlier than others, on average.
Research at Leipzig University finds that socially disadvantaged individuals have a higher risk of dementia due to modifiable health and lifestyle factors. Lifestyle interventions may mitigate socio-economic differences in cognitive performance.
Researchers discovered significantly elevated plasma TDP-43 levels in patients with Limbic-predominant age-related TDP-43 encephalopathy (LATE), a newly recognized form of dementia. This finding could lead to the development of new diagnostics for LATE, currently poorly understood and difficult to identify in living patients.
A new neuronal cell-based reporter system has been developed to identify compounds that inhibit histone deacetylase 2 (HDAC2) with minimal effect on its partner enzyme HDAC1. This innovation holds promise for dementia drug development by targeting the root cause of memory impairment.
Researchers tested three widely believed aging treatments in mice and found no impact on aging. A new analytical approach allowed them to measure aging processes more precisely, revealing that these treatments promote general health rather than targeting aging mechanisms.
Females with more subcutaneous fat are protected against brain inflammation, a risk factor for dementia and stroke. Removing subcutaneous fat increases brain inflammation in females, even on low-fat diets.
A large study found that exercise and mindfulness training did not improve cognitive function in healthy older adults, with no measurable benefits after 6 or 18 months. The researchers plan to continue studying the group to see if these practices may help prevent future cognitive declines.
A study published by Tufts University has found a link between higher levels of vitamin D in brain tissue and improved cognitive function in adults. The research, which analyzed brain tissue from over 200 participants, suggests that vitamin D may play a role in protecting the aging brain against diseases such as Alzheimer's.
A retrospective cohort study of 1,404 subjects with type 2 diabetes found that metformin use reduced the risk of delirium by 50% and decreased 3-year mortality rates. The study suggests that metformin may be a potential benefit for patients with diabetes, particularly in reducing age-related disorders such as dementia.
Treatment with acetylcholinesterase inhibitors, with or without memantine, may reduce mortality risk and length of stay for unplanned hospital admissions among individuals with dementia with Lewy bodies. The study analyzed data from the UK to support this association.
A recent study published in the Journal of American Geriatrics Society found that a tailored activity program (TAP) significantly improved behavioral symptoms in Black families compared to white families. The program, which provides activities tailored to interests and abilities, also reduced caregiver distress.
A new study published in JAMA Neurology found that using hearing aids can decrease the risk of cognitive decline by 20%. The study, conducted by researchers at NUS Medicine, analyzed data from over 130,000 participants and found a significant association between hearing aid use and reduced cognitive decline. The findings suggest that t...
Researchers from the Salk Institute have found that deteriorating neurons from people with Alzheimer's disease undergo a late-life stress process called senescence, leading to brain inflammation and neurodegeneration. By targeting these senescent cells with therapeutics, scientists hope to prevent or treat Alzheimer's disease.
Researchers have discovered that a specific mutation in the misfolding protein causing Parkinson's disease can also protect against multiple system atrophy (MSA), another fatal neurodegenerative disorder. The findings provide a promising lead for developing targeted treatments using personalized medicine approaches.
Early stage clinical studies confirm 40Hz sensory stimulation is safe, with no serious adverse effects. The therapy also showed significant neurological and behavioral benefits, including improved brain activity, reduced brain atrophy, and better sleep patterns.
Researchers found that a gene mutation in mice resulted in increased plaque deposits and larger clumps, suggesting the gene plays a critical role in immune defenses. The study may lead to new therapies targeting this gene mutation to slow progression of Alzheimer's disease.
Researchers identify INPP5D as a key player in the inflammation process contributing to Alzheimer's disease, which may offer new potential targets for therapies. The study found that mice with inactivated INPP5D gene had more plaques covered by microglia, suggesting unexpected results when modulating inflammation genes.
A study published in Neurology found that people with higher scores for subjective cognitive decline were more likely to develop dementia. The study, which followed participants over five years, found that every additional point on the scale increased dementia risk by 8.5%.
Research finds that individuals with dementia who receive care from an interprofessional team are more likely to visit the emergency department than those cared for by a physician-only practice. However, this team-based approach does not appear to reduce hospitalization rates.
A recent clinical trial found that the Green Mediterranean diet reduced visceral adipose tissue by 14%, outperforming both the traditional Mediterranean diet and a healthy diet. The new diet incorporates dietary polyphenols and lower red meat intake, resulting in significant weight loss benefits.
A Cornell-led collaboration used machine learning to predict Alzheimer's progression in cognitively normal and mildly impaired individuals. The modeling showed that MRI scans are most informative for asymptomatic cases, while PET scans are more effective for those with mild cognitive impairment.
A new biomarker has been identified with up to 89% accuracy for corticobasal degeneration, a primary tauopathy. The discovery could accelerate progress toward therapies for this rare brain disease, which is often misdiagnosed due to similar symptoms.
Recent studies from the University of Eastern Finland found that lower education levels and previous traumatic brain injuries may increase the risk of frontotemporal dementia (FTD). FTD patients were more likely to have cardiac disease and develop the condition earlier if they had a history of head injury.
Scientists at Texas A&M University found that transplanting intestinal epithelial stem cells can repair the gut and reduce inflammation, potentially preserving cognitive function after a stroke. The study suggests that targeting gut health may be key to developing more effective stroke therapies.
A new study published in the journal Nature has identified medin as a key player in Alzheimer's therapies. Medin, a protein that accumulates in the blood vessels of the brain, promotes vascular pathology and cognitive decline. The researchers hope to develop a treatment targeting medin to prevent vascular damage and cognitive decline.
A recent study by Brigham and Women's Hospital reveals that patients with Alzheimer's dementia and related disorders who also experience delirium incur significantly higher healthcare costs. The average additional cost for one delirium ADRD patient's year of care is $34,828 more than non-delirium ADRD counterparts.
Scientists at WashU Medicine have discovered that immune cells surrounding the brain play a crucial role in clearing toxic clusters of proteins. Treating old mice with an immune-stimulating compound rejuvenates these cells, improving waste clearance and holding promise for treating neurodegenerative diseases like Alzheimer's.
A study published in the Journal of the American Geriatrics Society found that antiepileptic prescribing to US nursing home residents with Alzheimer's Disease and dementia increased between 2015 and 2019. In contrast, antipsychotic and opioid prescribing rates declined during this period
Researchers have identified a new gene, NUCL-1, in the transparent roundworm C. elegans, which is linked to human neurodegenerative diseases such as ALS and Alzheimer's. The discovery challenges recent theories on the role of nuclear structures in these disorders.
The age-adjusted prevalence of dementia declined from 12.2% to 8.5% among people over 65 between 2000 and 2016. Education was a key factor in the reduction, explaining 40% of the decline among men and 20% among women.
Researchers at UQ's Queensland Brain Institute found a causal relationship between lack of oxygen to the brain during sleep and Alzheimer's disease in mice. CPAP treatment for obstructive sleep apnea may prevent cognitive impairment and neuron death, reducing dementia risk.
Researchers discovered Fyn enzyme clusters when immobilized in synapses, forming toxic 'protein clumps' linked to dementia. Targeting Tau biomolecular condensates may prevent dementia progression.
A new study published in Alzheimer's & Dementia found that telmisartan, a blood pressure medication, is associated with lower risk of Alzheimer's specifically in Black patients over 60. The study analyzed data from over 5 million patients and suggests that future clinical trials should prioritize minority populations to find or reinfor...
A new poll finds that more than half of people over 50 have helped at least one person over 65 with various tasks, including health care needs, home repairs, and finances. The experience can be rewarding but also challenging, especially for those helping individuals with complex needs.
A study published in the Journal of Alzheimer's Disease found that analyzing patients' drawing tests can help diagnose Alzheimer's disease (AD) and distinguish it from dementia with Lewy bodies (DLB). The researchers discovered that DLB patients showed differences in speed-, pressure-, and pause-related features, whereas AD patients sh...
A study published in Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring found that analyzing patients' speech can distinguish between different types of dementia. The research team developed a machine learning model using speech features to identify Alzheimer's disease and Lewy body dementia.
A new study found that only 12% of middle-aged adults are willing to participate in dementia prevention drug trials, citing concerns over the risks involved. The study suggests prioritizing those with a family history or perceived personal risk for dementia and communicating about trial safety could increase participation.
Scientists have developed a new mathematical model to understand the formation of amyloid protein clusters in the brain, which are linked to Alzheimer's disease. The study reveals that these clusters form through a process called liquid-liquid phase separation and can impact normal brain activity.
A new funding grant will be used to investigate the effectiveness of 'Fastball EEG' in detecting three major types of dementia, including frontotemporal dementia and Vascular Dementia. The technology has shown high accuracy in picking up small changes in brain waves associated with memory recall.
Researchers at Harvard Medical School have made progress in understanding the mechanism underlying a type of dementia that strikes early in life. A genetic form of frontotemporal dementia is associated with accumulation of specific lipids in the brain, which results from a protein deficiency that interferes with cell metabolism.
A team of researchers at USC is launching a comprehensive study to investigate the connection between type 2 diabetes and dementia in adults with Hispanic ancestry. The five-year study will examine brain structure and activity, blood flow, blood glucose and insulin levels, and cognitive functioning in 200 participants.
A new study published in NEJM Evidence found that crossword puzzle training significantly improved cognitive function and daily activities, reducing brain shrinkage in individuals with mild cognitive impairment. The findings suggest that engaging with familiar activities like crossword puzzles may be more effective than computerized co...
Researchers at Penn State aim to create a minimally invasive system using machine learning and multimodal biosensing platforms to detect Alzheimer's disease in its early stages. The system has the potential to improve detection accuracy and reduce false positives.
A meta-analysis published in Neurology found an association between traffic-related air pollution and an increased risk of dementia. Fine particulate matter exposure was linked to a 3% increase in dementia risk, highlighting the importance of reducing air pollution to prevent this disease.
A global study of over 28,000 people found that lowering blood pressure can significantly reduce the risk of dementia. The researchers analyzed five double-blind placebo-controlled trials and discovered a broad linear relationship between blood pressure reduction and lower dementia risk.
A recent US study of nearly 3,500 individuals aged 65+ found that 10% had dementia and 22% mild cognitive impairment (MCI), with disparities seen among racial and educational groups. The results highlight the disproportionate burden of dementia on older Black adults and MCI among Hispanic adults with lower education levels.
A recent study found that nearly 10% of US adults aged 65 and older have dementia, while another 22% have mild cognitive impairment. The prevalence of dementia and mild cognitive impairment increases with age, affecting individuals from diverse backgrounds differently.
Researchers found lower serum TDP-43 levels in patients with C9orf72 repeat expansion or motoneuron disease, distinguishing them from other FTD subtypes. This study suggests TDP-43 as a potential biomarker for diagnosing specific FTD subtypes, enabling patient-specific interventions.
Scientists at NTU Singapore have found that a stress response in cells, when 'switched on' at a post-reproductive age, could be the key to slowing down aging. The study showed that this stress response extended the lifespan of roundworms fed a high-glucose diet.
A population-based analysis of 1,193 major surgeries found that 13.4% of patients died within a year, with frail and dementia-affected individuals facing significantly higher mortality rates
A new study found that timely treatment of depression can reduce the risk of dementia by about 30% in certain patient groups. The study, published in Biological Psychiatry, analyzed data from over 350,000 participants and found that depression elevated the risk of dementia by 51%, but treatment reduced this risk. Those with increasing ...
A new study aims to diagnose severe neurodegenerative diseases like ALS and FTD with the help of speech tests. AI can analyze subtle nuances of speech patterns, including pauses, speed, and melodic aspects, to detect early changes.
A new study by UCL researchers found that talking therapies on the NHS can improve the mental health of people with dementia, with 63% experiencing a reduction in symptoms. The therapy proved clinically beneficial, even though response rates were lower than those without dementia.
A recent UK Biobank study found that Black participants are at a higher risk of developing dementia compared to White participants, with an HR of 1.43. South Asians also have a similar risk to White participants. The study included 294,000 volunteers, but the results may not be representative of the wider UK population.
A recent study analyzed the records of over 33,000 dementia patients in Wales and found that those closest to their diagnosis were taking an average of three or more medications. This suggests a possible link between polypharmacy and the development of dementia.