Alzheimer's & Dementia News and Research

Latest Alzheimer's & Dementia News and Research

Why Alzheimer’s DNA tests don’t treat all populations equally

A major global study tested whether European-derived polygenic risk scores (PGS) for Alzheimer’s disease can predict risk across diverse populations. While PGS performed well in many groups, it was less accurate in individuals of sub-Saharan African and Indian ancestry, highlighting the urgent need for more inclusive genetic data.

19 Jun 2025

Study finds high levels of iron in the brains of people diagnosed with Down syndrome and Alzheimer's

Scientists at the USC Leonard Davis School of Gerontology have discovered a key connection between high levels of iron in the brain and increased cell damage in people who have both Down syndrome and Alzheimer's disease.

19 Jun 2025

Researchers identify key differences in Alzheimer's progression in humans and animal models

Although it is known that Alzheimer's disease can start up to 20 years before the first symptoms appear, the lack of knowledge about how it progresses prevents the development of effective treatments, as well as a clear diagnosis to confront this neurodegenerative disease, which origin is also unknown.

19 Jun 2025

Positive wellbeing may help reduce the risk of memory loss in middle age

Higher levels of wellbeing may help reduce the risk of memory loss in middle age, suggests new research, which tracked more than 10,000 over 50-year-olds across a 16-year span.

19 Jun 2025

Brain age gap may influence the relationship between cognitive impairment risk factors

The difference between the brain's predicted age and actual chronological age, called a brain age gap, may influence the relationship between cognitive impairment risk factors, like high blood pressure and diabetes, and a person's cognitive performance, also known as thinking and memory skills, according to a study published June 18, 2025, in Neurology, the medical journal of the American Academy of Neurology.

19 Jun 2025

Early infant behavior predicts cognitive ability decades later

Watching a baby babble, play and interact with others can provide useful insight into what their cognitive ability might be like decades later, according to new University of Colorado Boulder research published in the journal PNAS.

19 Jun 2025

Cognitive decline tied to gut microbes and nutritional access

A new study led in part by Mount Sinai researchers has found a compelling link between the composition of the gut microbiome and the risk of cognitive impairment (RCI) in adults, underscoring the complex role that both biology and social determinants-such as food insecurity-play in brain health.

18 Jun 2025

UQ researchers discover new lipid-based pathway essential for memory formation

A new lipid-based pathway essential for memory formation has been discovered by University of Queensland researchers – a breakthrough that could lead to treatments for post-traumatic stress disorder (PTSD).

18 Jun 2025

Nurse practitioners critical in treating older adults as ranks of geriatricians shrink

On Fridays, Stephanie Johnson has a busy schedule, driving her navy-blue Jeep from one patient’s home to the next, seeing eight in all.

18 Jun 2025

Could a diabetes drug be the key to stopping Alzheimer’s?

Investigating tirzepatide's role in Alzheimer's reveals its potential to improve brain function and reduce inflammation, linking diabetes and neurodegeneration.

17 Jun 2025

Rising temperatures linked to more severe sleep apnea worldwide

Sleep apnea will become more common and more severe due to global warming, leading to increased health and economic burdens across the globe, warn Flinders University sleep experts.

16 Jun 2025

Machine learning identifies key lifestyle factors for healthy brain function

A new study offers insight into the health and lifestyle indicators - including diet, physical activity and weight - that align most closely with healthy brain function across the lifespan.

16 Jun 2025

Indiana University researcher helps develop FDA-approved Alzheimer’s test

A first-of-its-kind blood test to detect amyloid plaques in the brain associated with Alzheimer's disease recently received clearance from the U.S. Food and Drug Administration. An Indiana University School of Medicine researcher who helped lead the discovery and development of one of the biomarkers the test identifies hopes it will provide greater access and a more accurate diagnosis for patients.

16 Jun 2025

c-Fos exhibits a dual role in memory formation and Alzheimer's disease

Immediate-early genes (IEGs), including c-Fos, are integral to the brain's response to stimuli. Initially identified as a proto-oncogene, c-Fos is essential for neural activity, synaptic plasticity, and stress responses.

14 Jun 2025

UK study finds small proportion of early Alzheimer’s patients suitable for latest treatments

Few people in the UK with early stage Alzheimer's disease are likely to be suitable for the latest drugs which aim to halt progress of the condition, yet many are nevertheless likely to be referred for these treatments, finds research published online in the Journal of Neurology Neurosurgery & Psychiatry.

13 Jun 2025

APOE gene variants influence metabolic patterns linked to aging and Alzheimer’s risk

A new research paper was published in Aging (Aging-US) Volume 17, Issue 5, on May 3, 2025, titled "APOE genotype and biological age impact inter-omic associations related to bioenergetics."

12 Jun 2025

Engineered lymph node model advances human immune system research

Scientists with the Fralin Biomedical Research Institute at VTC have created an engineered model of the supportive tissue found within a lymph node to study human health.

12 Jun 2025

Lower oral microbiome diversity linked to higher depression symptoms

A rich and varied mix of microbes in the mouth, particularly bacteria, is not only important for our oral health, but may hold clues for other conditions.

12 Jun 2025

Exercise targets specific brain cells to protect against Alzheimer’s

Using advanced single-nuclei RNA sequencing (snRNA-seq) and a widely used preclinical model for Alzheimer's disease, researchers from Mass General Brigham and collaborators at SUNY Upstate Medical University have identified specific brain cell types that responded most to exercise.

12 Jun 2025

New large-scale study maps early triggers of Alzheimer’s protein aggregation

A new large-scale study has mapped the first molecular events that drive the formation of harmful amyloid protein aggregates found in Alzheimer's disease, pointing towards a new potential therapeutic target.

12 Jun 2025