Articles tagged with Alzheimer Disease
Researchers from the University of Gothenburg have made a breakthrough in understanding the role of protein tau in Alzheimer's disease. By identifying specific amino acid modifications that occur before thread-like fibrils form, scientists hope to develop complementary drugs to combat the disease.
Researchers developed a biomarker test that can detect small amounts of tau protein and its misfolded forms in cerebrospinal fluid, correlating with cognitive decline severity. The test identifies early stages of tau tangle formation up to a decade before brain scans, opening doors for early-stage disease diagnosis and intervention.
Researchers identified a link between Alzheimer's disease, cell function, and cholesterol in the brain. Lowering oxysterol levels freed trapped ABCA1, restoring its healthy state, and showed potential as a new treatment approach.
A Michigan Medicine-led study suggests that living in disadvantaged communities may decrease the length of time a person can survive with amyotrophic lateral sclerosis (ALS) by up to 37%. The study found that patients from more resourced areas tended to live longer, possibly due to better access to care and reduced caregiver burnout. T...
Researchers have uncovered a mitochondrial process that supports brain cells critical for learning, memory, and social recognition. The study reveals the critical role of the mitochondrial calcium uniporter in enabling neurons to strengthen connections through synaptic plasticity.
Researchers at Arizona State University propose a unifying explanation for Alzheimer’s disease, focusing on the role of chronic stress granules in disrupting gene activity. The condition causes massive changes in gene expression, affecting every known neuropathology and clinical manifestation.
Researchers discover that tau protein and beta-amyloid, key pathological hallmarks of Alzheimer's, affect brain circuits in distinct yet synergistic ways. This study suggests a potential breakthrough in treatment strategies by highlighting the need for dual-targeted therapies.
Certain mouth bacteria may support better memory and attention, while others increase the risk of Alzheimer's disease. The study found that an imbalance between beneficial and harmful bacteria can reduce nitric oxide production, crucial for brain communication.
Bess Frost, director of Brown University's Center for Alzheimer’s Disease Research, received the 2025 Rainwater Prize for her groundbreaking findings on tau toxicity and retrotransposons. Her work may lead to new treatments for neurodegenerative diseases, including Alzheimer’s and tauopathies.
A new drug developed by the Centre for Addiction and Mental Health (CAMH) has shown significant promise in reversing memory loss in a mouse model of Alzheimer's disease. The drug, GL-II-73, selectively targets GABA receptors to restore brain function and repair damaged neural connections.
Scientists from DZNE found that preventing brain inflammation may help treat Alzheimer's disease. The study, published in Immunity, suggests that inhibiting the NLRP3 inflammasome can reduce neuroinflammation and help microglia clear harmful amyloid-beta deposits.
The Primary Prevention Trial aims to determine whether stopping early molecular changes can prevent Alzheimer's disease from taking hold. The study will enroll people as young as 18 with few or no detectable Alzheimer's-related molecular changes in their brains.
A comprehensive genetic analysis of East Asian populations has identified key SORL1 genetic variants that confer protective effects against Alzheimer's disease. Individuals carrying these variants exhibited improved cognitive function, decreased neurodegeneration, and less severe AD pathology.
Researchers at Edith Cowan University discovered a potential connection between dietary patterns, depressive symptoms, and Alzheimer's disease. The Mediterranean diet, rich in antioxidants and healthy fatty acids, may attenuate the negative impact of depressive symptoms on AD-related biomarkers.
A new pilot study assesses how caregivers use advanced wearable technology to support people with dementia, finding that it reduces emotional strain and increases caregiver satisfaction. The technology, called Theora Care, provides a wearable device and smartphone application that alerts caregivers when the person has wandered.
A team of researchers has developed a novel model of the Blood-Brain Barrier, which mimics the complex structure of cerebral blood vessels. This breakthrough enables scientists to study neuroinflammation and develop new therapeutic strategies for Alzheimer's disease and other neurodegenerative disorders.
Researchers at Lancaster University have developed a new method to detect Alzheimer's disease by analyzing changes in brain oxygenation dynamics and neuronal function. The study found that individuals with Alzheimer's disease exhibit altered respiratory frequency, which may be an early indicator of the condition.
Researchers discovered how X-ray microtomography can provide insights into the processes linking gut neurons to brain cells, potentially triggering Alzheimer's. The study found alterations in gut tissues and cell transformations in mice affected with Alzheimer's, suggesting a potential therapeutic target for early detection and treatment.
The D-CARE study found no differences in patient behavioral symptoms or caregiver strain between health system and community-based care approaches. However, comprehensive care improved caregiver self-efficacy, which remained consistent throughout the 18-month period.
Next-generation tau radiotracers demonstrate higher binding to Alzheimer's disease brain tissue and greater selectivity than existing imaging agents. This could lead to improved diagnosis and staging of the disease, as well as better outcomes in clinical trials.
A University of Oklahoma researcher is exploring alternate strategies for identifying and targeting Alzheimer's and related diseases using a $2.2 million federal grant. The study aims to understand the mechanisms linking aging to cognitive decline, potentially leading to new treatments for dementia.
A study found a link between oral microbiome and dementia risk, with certain bacteria associated with better executive function. A nitrate-rich diet may favor beneficial oral bacteria, potentially delaying cognitive decline.
Researchers discovered that pancreatic β cells produce a neuroprotective agent called Fibroblast Growth Factor 23 (FGF23), which can stop amyloid-β-induced neuronal cell death. FGF23 may increase ribosomal proteins, helping to maintain homeostasis in neurons.
A study found that people with delayed REM sleep have higher levels of toxic proteins amyloid and tau, and lower levels of healthy protein BDNF, which can increase the risk of developing Alzheimer's. Practicing healthy sleep habits may help mitigate this risk.
This study used a senescence-accelerated prone strain 8 (SAMP8) male mice model to observe the protective effects of acupuncture on different brain regions in Alzheimer's disease. Acupuncture treatment improved learning and memory abilities, as well as depression-like behavior, by reducing apoptosis and decreasing tau protein deposition.
Researchers found that individuals with childhood epilepsy have an increased accumulation of brain amyloid later in life, which may lead to late-onset brain amyloid disorders like Alzheimer's disease. The study also showed that these individuals performed worse in cognitive tests compared to controls.
Limbic-predominant age-related TDP-43 encephalopathy (LATE) is a common memory disorder that can progress slower and cause less impairment of cognitive functions than other types of dementia. The new guidelines provide a first step in advancing clinical trials and treatments for this lesser-known, but common type of memory loss disorder.
Researchers found associations between antibiotics, antivirals, vaccines, and anti-inflammatory drugs with reduced dementia risk. The study pooled data from over 130 million individuals, identifying potential repurposed treatments for dementia.
A new study suggests that stalled amyloid protein production contributes to the development of Alzheimer's disease. Researchers found that rare familial genetic mutations linked to early-onset dementia cause deficiencies in multiple APP processing steps, leading to neurodegeneration.
Researchers have found that microglia function differently in adult male versus female mice when given an enzyme inhibitor, with potential broad implications for how neurological diseases are studied. This discovery highlights the necessity of gender-specific research and may lead to new disease-modifying therapies targeting microglia.
Researchers at Nagoya University found that stimulating CB2 with JWH 133 improved cognitive function and reduced neuroinflammation in AD mouse models. The study suggests that CB2 is a potential therapeutic target for Alzheimer's disease, providing a cost-effective alternative to existing treatments.
Intrinsically disordered proteins make up 30% of all proteins and are linked to various diseases. By combining two methods in a single sample, researchers have improved the accuracy of measuring protein size and its impact on disease development.
A new study demonstrates how fluorescent cholesterol probes can visualize cholesterol in live cells, revealing its role in amyloid plaque formation and cellular signaling. The novel probes have the potential to enhance our understanding of how cholesterol imbalances contribute to neurodegenerative disorders.
The study provides insights into the roles of microglia in neurodegenerative diseases, revealing nine transcriptionally distinct subpopulations. The GPNMB-high Lipo.DAM signature is associated with Alzheimer's Disease and Multiple Sclerosis, and may hold relevance for immune-based therapies.
The Cognitive Neuroscience Society conference will feature keynote addresses, award lectures, and symposia on various topics in cognitive neuroscience. Researchers will present the latest findings on sleep, emotional experiences, brain connectivity, and more.
A study from Mass General Brigham and Washington University School of Medicine found that Xenon gas inhalation reduced brain atrophy, neuroinflammation, and improved nest-building behaviors in mouse models of Alzheimer's disease. The treatment also induced a protective microglial response associated with clearing amyloid and improving ...
Researchers at University of the Basque Country discover molecule that protects brain and reverses initial cognitive damage caused by dementia; increases activity of cannabinoid and cholinergic systems, improving memory. Further studies needed to identify similar molecules for clinical trials.
Regular aerobic exercise has been shown to significantly reduce disease markers associated with Alzheimer's, protecting healthy brain cells and restoring balance in the aging brain. The study highlights the potential for aerobic exercise to serve as a cornerstone in preventive strategies for Alzheimer's.
Researchers discovered a brain functional connectome phenotype related to multiple cerebrovascular disease markers that contributes additively to cognitive decline and neurodegeneration alongside Alzheimer's disease. The study highlights the role of cerebrovascular disease in reshaping our understanding of dementia.
Researchers have identified a cognitive profile that can differentiate Dementia with Lewy bodies from Alzheimer's disease at the pre-dementia stage. This allows for more targeted care and symptom management, reducing the risk of misdiagnosis.
The Collaborative Science Pilot Awards program aims to inspire innovative research projects across UH and Case Western Reserve. Five teams will focus on organizing an MR Fingerprinting database, developing a genetic risk aid for early keratoconus detection, analyzing Alzheimer's treatment mechanisms, treating gastrointestinal symptoms ...
A study published in Cell describes the synchronized oscillations that occur during non-REM sleep, including norepinephrine, cerebral blood volume, and CSF flow. The research highlights the critical role of these oscillations in powering the glymphatic system, which removes protein waste associated with neurodegenerative diseases.
Researchers found that declining levels of two molecules in the blood, acetyl-L-carnitine and free carnitine, track closely with worsening Alzheimer's disease. The study suggests these biomarkers could identify those at risk and potentially diagnose early dementia.
Researchers developed a predictive tool using the Florey Dementia Index to forecast onset ages of mild cognitive impairment and Alzheimer's. The validated tool may help prioritize patients for disease-modifying treatments.
A new USC study validates a biomarker linked to vascular dementia and suggests that glymphatic damage drives cognitive decline. The findings provide a potential pathway to explain how cognitive impairment arises, offering a target for clinical researchers seeking treatments for vascular dementia.
A study published in PNAS found that short-term timing patterns of past brain activity are the primary determinant of sleep spindle timing, accounting for over 70% of its variability. These individualized patterns change with age and provide a new target for understanding how sleep supports memory.
An international team has presented the first detailed picture of Huntington's disease protein clumps, known as fibrils. These elongated shapes differ in important ways from those in other diseases like Alzheimer's and Parkinson's, offering new insights into their role in the disease.
Researchers found that cardiovascular conditions like high blood pressure and diabetes are not linked to brain damage in individuals over 90. Certain medications, such as diuretics and beta blockers, showed potential proactive effects in reducing brain damage and cerebral amyloid angiopathy.
A new study has found HSV-1 proteins embedded in Alzheimer's brains, linking the virus to tau protein changes. Researchers suggest that inhibiting viral activity or modifying the brain's immune response could slow or stop Alzheimer's progression.
A $16 million NIH program aims to identify barriers to equitable healthcare for individuals with Alzheimer's disease and related dementias. The research initiative will examine the relationships between healthcare providers and patients, focusing on provider-patient racial concordance and its impact on health outcomes.
A recent study by Mizzou researchers found that nursing home residents with Alzheimer's disease or related dementias are more likely to experience avoidable hospital transfers due to a mismatch between care provided and personal preferences. Increasing staff support, training, and resources can help improve outcomes for these residents.
A new Tulane University study suggests that the Mediterranean diet's brain-boosting benefits may work by changing the balance of bacteria in the gut. Researchers found that subjects following a Mediterranean diet developed distinctly different gut bacteria patterns compared to those eating a typical Western diet.
Researchers have discovered a nucleolar complex that plays a pivotal role in maintaining cellular health through protein homeostasis, allowing for the dramatic reduction of toxic effects of Alzheimer's-causing proteins. This breakthrough offers hope for new therapies to slow or prevent neurodegenerative diseases, promoting healthy aging.
Researchers developed a new tool to measure biological aging in individual cell types, providing insights into diseases like Alzheimer's and liver pathologies. The study found that certain brain cells and liver cells show signs of accelerated aging, making it a better tool for detecting diseases.
Researchers discovered a link between HSV-1 and Alzheimer's disease, suggesting that viral infections play a role in the disease. The study also found that tau protein initially protects the brain from the virus but contributes to brain damage later.
A new study reveals a direct link between structural inequality and changes in brain structure and connectivity associated with aging and dementia. Higher levels of inequality are linked to reduced brain volume and disrupted connectivity, especially in temporo-posterior and cerebellar regions essential for memory and cognitive function.
The new guideline recommends a patient-centered approach to diagnosing Alzheimer's disease, involving goal-setting, risk profiling, symptom description, cognitive testing, and diagnostic imaging. A care partner's involvement is crucial, especially for patients with compromised cognition.
Researchers have unveiled a critical mechanism linking cellular stress in the brain to Alzheimer's disease progression, highlighting microglia as central players in both protective and harmful responses. The study reveals that blocking a specific stress pathway reverses symptoms of Alzheimer's disease in preclinical models.
A new gene editing tool called SPLICER has been applied to reduce the formation of amyloid-beta plaque precursors in a mouse model of Alzheimer's disease. The application shows improved efficiency over current standard gene editing technology and potential for application in other diseases.
Researchers at Karolinska Institutet used AI to analyze brain images from 70-year-olds and found that factors like inflammation and high glucose levels are associated with an older-looking brain. A healthy lifestyle, on the other hand, was linked to brains with a younger appearance.