Tomography News and Research

RSS

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

Scientists develop multi-spot tracking system for corneal diagnostics

Researchers at the International Centre for Translational Eye Research (ICTER) have developed a prototype imaging system that can simultaneously track the cornea's mechanical response at nine locations.

28 Jul 2026

Blood tests improve Alzheimer's detection in Down syndrome patients

New blood tests that detect early changes associated with Alzheimer's disease are making diagnosis easier and accessible to more patients, since they are less invasive than the brain scans or spinal taps typically used for a definitive diagnosis.

27 Jul 2026

Expert consensus advances evidence-based orthodontic care for adult patients

Alveolar bone defects and protrusive facial deformities affect a considerable portion of the population and may increase the risk of other complications.

24 Jul 2026

Modifiable cardiovascular risk factors linked to unstable coronary artery plaques

Cardiovascular risk factors are linked to higher risk of heart disease, but it has been unknown how they are related to abrupt closure of the coronary arteries leading to heart attack and sudden cardiac death.

23 Jul 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

Researchers identify risk factors for postoperative cerebral ischemia in patients with moyamoya disease

The buildup of fats, cholesterol, calcium, and immune cells within the blood vessel can lead to the narrowing or even complete blockage of the blood vessel.

20 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

Robot-guided surgery successfully drains multiple deep brain abscesses

Brain abscesses located deep within the brain can rapidly become life-threatening and are often difficult to treat through conventional surgery. Brain abscesses located deep within the brain can rapidly become life-threatening and are often difficult to treat through conventional surgery.

13 Jul 2026

Transplanted neural progenitor cells survive one year in patients with retinitis pigmentosa

New, previously unpublished clinical data was presented today at ISSCR 2026 demonstrating that transplanted human neural progenitor cells survived for at least one year following subretinal transplantation in patients with retinitis pigmentosa (RP), while maintaining a favorable safety profile.

9 Jul 2026

New microparticles improve biofilm removal from wounds and surgical instruments

Newly developed microparticles can infiltrate stubborn bacterial matrices and release tiny oxygen bubbles to clean surfaces and wounds more efficiently than hydrogen peroxide or other cleaning agents alone, researchers at the University of Illinois Urbana-Champaign report.

9 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

Case study shows how accurate diagnosis can guide personalized treatment for renal oncocytoma

A new case report was published in Volume 17 of Oncotarget on July 2, 2026, titled "Renal oncocytoma: Α case report and literature review."

6 Jul 2026

Study compares different light therapies for treating Alzheimer's disease

The researchers treated 5‑month‑old 5xFAD mice – a model with aggressive amyloid deposition – with 810‑nm light (25 mW/cm² at the scalp, ~6.25 mW/cm² brain dose for CW, and half that for 40‑Hz due to 50% duty cycle) for 10 minutes daily over 37 days.