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A study links a blood protein to memory and brain changes in Down syndrome

Researchers studying 88 adults with Down syndrome and 43 controls estimated that serum β-synuclein increased approximately two decades before expected Alzheimer’s symptoms, preceding changes in other blood biomarkers. Higher levels correlated with poorer memory and brain changes, but the cross-sectional study could not distinguish whether the earliest increase reflected Alzheimer’s-related synaptic dysfunction, trisomy 21-related neurobiology, or both.

11 Oct 2026

$13.1 million grant backs bacterial therapies for resistant breast cancer

A scientist at Weill Cornell Medicine is working with colleagues at the University of Massachusetts Amherst on new, complementary research efforts engineering therapeutic Salmonella to target critical gaps in treatment for drug-resistant triple-negative breast cancers.

9 Oct 2026

An AI-identified biomarker can look accurate and still fail its biggest test

The review examines how AI combines molecular, imaging, circulating, cellular, and digital data to identify potential disease biomarkers. Its authors argue that independent validation, biological testing, and evidence of better clinical decisions are needed before those candidates enter patient care.

28 Sep 2026

Better fitness was linked to healthier brain structure, but not better memory

Researchers studying 353 cognitively unimpaired adults aged 60 to 94 found that higher muscular capacity was associated with lower basal ganglia perivascular space volume, while greater aerobic fitness was associated with greater gray matter volume and medial temporal lobe thickness. Fitness was not directly associated with global cognition or episodic memory, and evidence for cognitive reserve was limited, although VO₂max explained additional variation in delayed verbal memory beyond tau burden.

18 Sep 2026

Specialized imaging technique detects most clinically relevant prostate cancers

An elevated PSA level in the blood may indicate prostate cancer, but does not yet allow for a definitive diagnosis.

16 Sep 2026

Virtual reality distraction helps claustrophobic patients complete cardiac scans

Patients who experience anxiety or claustrophobia can have difficulty completing important cardiac imaging, including Positron Emission Tomography (PET) and Computerized Tomography (CT) scans.

8 Sep 2026

Specific brain regions found more vulnerable to dementia with Lewy bodies

Dementia with Lewy bodies is one of the most common forms of dementia in older adults, after Alzheimer's disease.

26 Aug 2026

Novel blood-based method diagnoses Alzheimer’s disease with high accuracy

Alzheimer's disease (AD) accounts for 60–80% of global dementia cases, with its core pathological feature being the misfolding and aggregation of β-amyloid (Aβ) proteins in the brain.

25 Aug 2026

Study provides a more nuanced picture of biological mechanisms linked to autism

How does autism manifest in the brain? Researchers from the University of Southern Denmark and Odense University Hospital have investigated this question in a new study involving 60 adults.

21 Aug 2026

A single blood test could offer a glimpse of disease risk years in advance

Machine learning-derived cellular aging clocks mapped more than 7,000 plasma proteins to over 40 cell types, revealing marked differences in how individual cell populations age. These blood-based signatures were associated with future risks of Alzheimer’s disease, ALS, lung cancer, type 2 diabetes, and mortality across follow-up extending to 15 years.

19 Aug 2026

High-resolution scans reveal how depression affects hippocampal subfields

Researchers from the USC Mark and Mary Stevens Neuroimaging and Informatics Institute (Stevens INI) at the Keck School of Medicine of USC have found that depression is associated with smaller volume in a specific part of the hippocampus, a brain region essential for learning and memory.

6 Aug 2026

Study connects late-life psychosis to abnormal tau protein buildup

Hallucinations and delusions that appear for the first time in midlife or later are often treated as psychiatric symptoms whose biological cause is unclear.

4 Aug 2026

Gut microbiome shifts may begin before Alzheimer’s symptoms appear

A narrative review links reduced SCFA-producing gut bacteria and altered microbial metabolism with Alzheimer’s disease, while early evidence suggests similar changes may appear before cognitive symptoms. Mediterranean, DASH, MIND, and prudent diets are associated with beneficial microbial profiles, but direct evidence connecting diet, the microbiome, and amyloid pathology remains limited.

3 Aug 2026

Persistent financial hardship tracks with poorer memory and processing speed by midlife

Researchers linked persistent low income and financial hardship across early and mid-adulthood to poorer processing speed and verbal memory at age 53 in a British birth cohort. Neuroimaging suggested greater vulnerability to later brain atrophy among men, people from disadvantaged childhood backgrounds, and APOE-ε4 carriers, although these subgroup findings require replication.

2 Aug 2026

New study uses sleep monitoring and AI to detect Alzheimer's

Researchers from Universidad Carlos III de Madrid (UC3M) and Hospital Universitario Severo Ochoa in Leganés, part of the public health network of the Comunidad de Madrid, have developed a methodology that uses artificial intelligence (AI) to analyze brain electrical activity during sleep and facilitate the early diagnosis of Alzheimer's.

22 Jul 2026

Tau buildup in progressive supranuclear palsy alters brain networks linked to thinking and behavior

Researchers at Japan's National Institutes for Quantum Science and Technology (QST) have found that tau buildup in progressive supranuclear palsy (PSP) may affect brain networks involved in thinking and behavior.

17 Jul 2026

Blood p-tau217 levels signal cognitive impairment risk years before symptoms emerge

Higher baseline plasma p-tau217 was associated with greater 5- and 10-year risks of cognitive impairment and faster cognitive decline among 2,684 cognitively unimpaired adults. Very high levels corresponded to an estimated 38% risk at five years, but selected cohorts and limited long-term data mean routine screening and individualized prediction remain premature.

16 Jul 2026

PET imaging reveals widespread brain receptor deficits in schizophrenia

A groundbreaking study using positron emission tomography (PET) imaging has found that patients with schizophrenia had significantly lower muscarinic acetylcholine M1 receptor availability (~13% to 19%) across multiple brain regions compared with healthy individuals.

16 Jul 2026

Rutgers study maps distinct patterns of brain connection loss in schizophrenia

Research involving a Rutgers professor sheds new light on the biological basis of schizophrenia by directly measuring synaptic connections in the human brain using specialized positron emission tomography (PET) imaging.

14 Jul 2026

New review shows why antidepressants often fail in Alzheimer’s and Parkinson’s depression

A Molecular Psychiatry review shows that depression in Alzheimer’s and Parkinson’s disease may reflect disease-specific molecular, neurotransmitter, inflammatory, and circuit-level disruptions rather than standard depression biology alone. It argues that broad antidepressants often show limited efficacy in these patients and that future trials should use biomarkers, neuroimaging, and symptom profiling to guide targeted treatments.

7 Jul 2026