Articles tagged with Alzheimer Disease
Researchers have made promising breakthroughs in understanding how antibodies can reduce the main hallmarks of Alzheimer's disease, including memory loss and ability to learn. The study suggests that antibodies could be used to prevent protein clusters from forming, which is believed to kill nerve cells.
Researchers at MGH-MIND discovered that an enzyme involved in Alzheimer's disease can alter neural signaling, leading to seizures. Elevated BACE activity may be responsible for seizures observed in Alzheimer's patients, suggesting potential treatments to alleviate their occurrence.
A new study found that most people with dementia have a combination of Alzheimer's disease and other chronic diseases in their brains. The researchers suggest that controlling blood cholesterol levels and hypertension may help prevent or slow the progression of Alzheimer's disease, potentially reducing the risk of dementia.
Researchers from the Alzheimer’s Disease Neuroimaging Initiative (ADNI) report promising early findings on imaging and biomarker analysis. The study reveals improved methods and uniform standards for tracking brain changes and predicting Alzheimer's disease, potentially leading to faster and more efficient evaluation of potential thera...
People who experience negative emotions such as depression and anxiety are 40% more likely to develop mild cognitive impairment. Chronic stress affects the brain's stress response area, also regulating memory. Researchers found that distress-prone individuals are at a higher risk of developing memory problems over time.
Researchers found that a breakdown of myelin in the developing brain may contribute to the progression of Huntington's disease. The study, led by Dr. George Bartzokis at UCLA, suggests that an abnormality in the Htt gene affects myelin nourishment, leading to neuron death and disease symptoms.
A study found that CPAP treatment significantly reduces nocturnal awakenings and improves oxygenation in adults with Alzheimer's disease and sleep-related breathing disorders. The therapy also increases deep sleep levels, leading to improved quality of life.
Researchers identified naturally occurring antibodies in human blood that selectively target toxic beta amyloid oligomers, potentially offering a natural defense mechanism against Alzheimer's. The antibodies recognize misfolded shapes of proteins, which could have implications for immune therapy of other neurodegenerative diseases.
New study links unexplained late-life weight loss with Alzheimer's disease severity, suggesting it may be an early predictor. Researchers found that weight loss preceding dementia by more than 10 years is associated with the severity of brain changes in Alzheimer's patients.
The global prevalence of Alzheimer's disease is estimated to grow from 26 million in 2006 to over 106 million by 2050. A significant increase in Asia is predicted, with the region accounting for 59% of worldwide cases.
Researchers at Burnham Institute have discovered that gamma-secretase acts as a tumor suppressor by altering the EGFR pathway, which may limit treatment options for Alzheimer's and other diseases. The study also found that APP metabolite AICD negatively regulates transcription of the EGFR gene.
A new study identifies a genetic 'fellow traveler' that influences the risk of late-onset Alzheimer's disease. The researchers discovered the GAB2 gene, which appears to modify Alzheimer's risk in people with a specific version of the APOE gene.
Researchers have discovered that stroke or traumatic brain injury can trigger Alzheimer's disease by enhancing the formation of brain-clogging amyloid plaques. Key findings include the role of caspase-mediated depletion of GGA3 in stabilizing BACE and increasing amyloid protein production.
A study has identified a common gene, GAB2, that appears to increase a person's risk for developing Alzheimer's disease. The researchers found that the healthy form of the GAB2 gene may protect brain cells from developing tangles, a hallmark of Alzheimer's disease.
Researchers at Massachusetts General Hospital have discovered a cellular chain of events linking stroke and head injury to Alzheimer's disease. The study reveals how brain cell death triggers the production of amyloid-beta protein, a key component of senile plaques.
Beta-amyloid accumulation is linked to brain dysfunction even in normal elderly individuals, according to a study. Researchers used PIB PET scans to detect early pathological changes of Alzheimer's disease and demonstrated its potential for identifying those in need of treatment.
Researchers identified a brain molecule, corticotropin-releasing factor (CRF), that increases amyloid beta levels in response to stress. Blocking CRF with a drug may provide a new way to decrease amyloid beta and delay or prevent Alzheimer's disease.
University of Missouri-Columbia professors identify new mechanisms in Alzheimer's disease research. They plan to study the effects of A-beta protein and inflammation, with hopes for treatments that modify cellular responses.
University of Leeds scientists have found a link between reduced oxygen in the brain and increased risk of Alzheimer's disease. The research suggests that even after full recovery from stroke, patients may still be vulnerable to the build-up of toxic chemicals that cause the disease.
A recent study found that a key inflammatory regulator in the brain acts as a protector against Alzheimer's disease, helping to remove toxic clumps called plaques. The research used genetically engineered mice with pinpoint control over inflammation levels, revealing that higher IL-1beta activity actually reduced plaque buildup.
Researchers found that pregnant women's exposure to the flu vaccine stimulates the development of immune cells in their babies. The study used a new technique to detect antigen-specific T cells and showed that B and T cell responses occur in utero following maternal vaccination against influenza.
A new study finds that people with Alzheimer's disease experience accelerated cognitive decline after being placed in a nursing home. However, those with prior adult day care experience fare better during the transition. The research suggests that experience in day care programs may help prepare individuals for institutional living.
Researchers found that an imbalance between two peptides, AB40 and AB42, can lead to the formation of senile plaques and dementia. Introducing more AB40 may stop or slow down Alzheimer's development by balancing with AB42.
Research suggests that people with high levels of inflammation in their blood are more likely to develop Alzheimer's disease. The study of over 600 participants found that those with elevated cytokines were nearly twice as likely to develop the disease.
A study found that people with dementia with Lewy bodies displayed passive personality changes, such as apathy and repetitive behaviors, more frequently than those with Alzheimer's. These changes can occur years before cognitive symptoms, enabling earlier diagnosis and potentially disease-modifying treatments.
A study by Weill Cornell Medical College researchers found that immune antibodies penetrate neurons and reduce levels of Alzheimer's-linked amyloid peptides, offering new hope for immunotherapy against the disease. The discovery could also advance treatment for other immune diseases.
Researchers propose a new mechanism for Alzheimer's disease, linking breakdown of myelin to amyloid-beta fibrils and neurodegeneration. Myelination is key to brain function, and its decline with age may underlie the disease's progression.
A nationwide clinical trial is evaluating whether omega-3 fatty acid DHA slows cognitive and functional decline in people with mild to moderate Alzheimer's disease. The 18-month study aims to measure the impact of DHA on brain atrophy, proteins, and other biological markers.
A study published in Neurology found that brain scans of people with mild cognitive impairment (MCI) show increased uptake of PIB, a biomarker for abnormal protein aggregation growth, similar to what is seen in Alzheimer's disease. The study suggests that early diagnosis of Alzheimer's disease may be possible through imaging tests.
Scientists at Gladstone Institutes have discovered a new strategy to prevent acute and chronic brain diseases by reducing tau protein levels. The study shows that mice lacking tau protein can resist seizures and Alzheimer's-related memory loss.
Researchers found that diets high in fish, seafood, and grains reduce the risk of heart disease. Cholesterol buildup in lysosomes may contribute to heart disease, and restoring acidity could help clear arteries. A new link between Down Syndrome and Alzheimer's Disease was also discovered through cholesterol metabolism.
Research presented at the American Academy of Neurology's meeting found that women using estrogen hormone therapy before age 65 had a nearly 50% lower risk of developing Alzheimer's disease or dementia. The study followed over 7,000 healthy women aged 65-79 for an average of five years.
A University of Alberta study found that seniors are being stereotyped as grouchy and inflexible, with caregivers holding misconceptions about aging and Alzheimer's disease, while most seniors are adaptable and seldom angry. The study highlights the need for more education about aging and dementia to promote positive care.
A clinical trial involving over 2,100 participants found that commonly used pain medications such as naproxen and celecoxib did not reduce the incidence of Alzheimer's disease. The study suggests that these medications should not be taken primarily to prevent Alzheimer's disease.
The study aims to identify ways to diagnose and treat aging-related diseases earlier, using chimpanzees and rhesus macaques compared to humans with Alzheimer's disease and mild cognitive impairment. The researchers hope to develop new treatments based on specific physiological changes.
A brain imaging study found that a specific gene variant associated with Alzheimer's disease is linked to thinner brain structures in youth, which may increase the risk of mental decline. The ApoE4 variant affects learning and memory hubs, but its impact on intellectual ability appears harmless.
A molecule designed by a Purdue University researcher could prevent the formation of amyloid plaques in the brain, a key step in Alzheimer's disease. The new compound targets memapsin 2, an enzyme involved in plaque development, and has shown promising results in reducing beta-amyloid levels.
A study by UC Irvine scientists found that diets rich in docosahexaenoic acid (DHA) can help prevent the development of Alzheimer's disease later in life. Mice given a DHA-rich diet showed lower levels of tau and beta amyloid, proteins associated with neurofibrillary tangles and plaques.
Researchers found brain structure changes in people who developed dementia or Alzheimer's disease up to four years before memory loss began. Those destined for MCI had lower cognitive test scores at the start of the study, even within normal ranges.
Researchers at Rowan University and Penn Medicine developed a high-accuracy method to diagnose early-stage Alzheimer's using EEG signals. The test, which can be done in a physician's office, has an accuracy rate of 82-85% and may provide earlier treatment and improved quality of life for those affected.
A study found that inhibiting the protein ATM can kill cancer cells with dysfunctional DNA repair pathways, offering hope for a new treatment. Additionally, researchers discovered that inhibiting the protein CaMKII can drive leukemic cells to mature and die, providing an alternative strategy for treating acute promyleocytic leukemia.
Researchers at Oklahoma Medical Research Foundation discovered that ApoE4 attaches to a receptor on brain cells, leading to protein fragment formation and cell death. This finding may lead to new pathways for developing Alzheimer's therapeutics.
Research suggests individuals with diabetes may have a higher risk of developing mild cognitive impairment, which affects thinking and learning abilities. The study found that diabetes was associated with a significantly increased risk of amnestic mild cognitive impairment, particularly in African-American and Hispanic populations.
A study by Massachusetts General Hospital researchers found that blocking immune cell action increased amyloid-beta deposits and shortened life spans in a mouse model of Alzheimer's disease. The study suggests potential new therapeutic strategies for early-stage Alzheimer's disease.
African-American and Hispanic caregivers are more likely to dismiss Alzheimer's symptoms as old age, leading to delayed diagnosis. These caregivers also tend to have a lower awareness of the risk factors for Alzheimer's disease compared to those from other racial backgrounds.
A team led by Massachusetts General Hospital confirms that Pittsburgh Compound B binds to amyloid-beta protein in the human brain, a key step in Alzheimer's disease diagnosis. The findings support using PET imaging with PiB to track treatment results and emphasize the need for clinical symptom evaluation.
Researchers at the University of Pennsylvania found that common inhaled anesthetics increase amyloid plaque appearance and cognitive decline in genetically engineered mice. The study suggests a potential link between long-term anesthesia use and early-onset Alzheimer's disease.
Researchers have identified several genes involved in Alzheimer's disease development, with the GALP gene showing potential in reducing brain cell tangles, a hallmark of the disease. The study, which tested over 17,000 gene variants in 4,000 volunteers, aims to provide a knowledge base for new treatments and diagnostic tests.
Researchers at Columbia University Medical Center have received a $3 million grant to explore the genetic causes of Alzheimer's disease. The study will investigate two primary areas: identifying genetic variants in unique populations and understanding how the amyloid protein becomes toxic, leading to neurodegeneration.
Researchers have identified a complex of proteins that plays a key role in alleviating tau accumulation in mice and cultured human cells. The study's findings suggest a pivotal role for Hsp90 in aberrant tau degradation, making an Hsp90 inhibitor like EC102 a promising therapeutic candidate for Alzheimer's disease.
Researchers at UCSB are developing a new approach to determine the structure and composition of the Abeta 42 peptide, which is responsible for Alzheimer's disease. They hope to find non-toxic drugs that can prevent further damage by identifying early markers of the disease.
Researchers found that men with Primary Progressive Aphasia (PPA) had a higher rate of vasectomy than those without the condition. PPA is a neurological disease causing language problems, while frontotemporal dementia (FTD) affects personality and behavior. The study suggests a possible link between vasectomy and increased risk of thes...
Researchers found a toxic link between beta-amyloid and tau that causes nerve cell death in Alzheimer's disease. The connection occurs before the formation of amyloid plaques and neurofibrillary tangles, and affects cells containing tau, which account for just 10% of brain cells.
Researchers from Massachusetts General Hospital discover that isoflurane, a commonly used anesthetic, can lead to generation of amyloid-beta protein and apoptosis in brain cells. The study suggests caution when using the anesthetic for elderly patients at risk of Alzheimer's disease.
A study of 823 individuals with an average age of 80 found that loneliness was associated with a 51% increased risk of developing Alzheimer's disease. The findings suggest that loneliness may contribute to the risk of dementia through mechanisms other than Alzheimer's disease pathology.
A recent study published in Archives of General Psychiatry found that individuals experiencing loneliness are at a significantly increased risk of developing Alzheimer's disease. The research, conducted over four years, analyzed data from 823 older adults and revealed that loneliness was associated with a 51% increased risk of developi...
Researchers at the University of Pennsylvania School of Medicine have found a link between microglia activation and Alzheimer's disease, suggesting a new approach to fighting the disease. The study also shows promise for immunosuppressant FK506 as a potential treatment for neurodegenerative disorders.
A study by UC Irvine scientists found that short but repeated learning sessions can slow the development of two brain lesions associated with Alzheimer's disease. The findings suggest that stimulating the mind through activities like reading or crossword puzzles may help delay and/or prevent the disease in senior citizens.
Scientists have made a surprising connection between Alzheimer's disease and the body's arterial system. Reduced blood flow in the brain precedes cognitive decline in patients with Alzheimer's disease.
Researchers have developed a novel transdermal vaccine approach that effectively clears brain-damaging plaques from a mouse model of Alzheimer's disease. The vaccine works by triggering the immune system to recognize abnormal protein Ab as a foreign invader, reducing cognitive deficits and senile plaque burden.