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Psychological traits may uncover why Alzheimer’s biology differs between patients

In 822 deceased older adults from ROS and MAP, researchers linked stable psychological traits to multi-omic molecular subtypes of Alzheimer’s dementia using postmortem brain tissue from the dorsolateral prefrontal cortex. Neuroticism and loneliness were associated with molecular progression, while purpose in life showed subtype-specific inverse associations, suggesting psychological traits may align with Alzheimer’s biology beyond conventional neuropathology.

22 Jun 2026

Aging immune cells may explain why autoimmunity rises later in life

A new Review reveals how aging can push the immune system into a paradoxical state, weaker against threats yet more prone to attacking the body’s own tissues.

21 Jun 2026

Gut microbes may help explain why obesity and type 2 diabetes become harder to reverse

This review describes how gut microbial messengers, including SCFAs, microbiota-modified bile acids, neuroactive metabolites, and extracellular vesicles, may shape obesity and type 2 diabetes through the microbiota-gut-brain axis.

17 Jun 2026

Prebiotic fiber supplement reduces harmful gut metabolites and improves liver health

A study conducted at the University of Jyväskylä, Finland, was the first to investigate the effects of prebiotic xylo-oligosaccharides (XOS) on fatty liver in humans.

16 Jun 2026

Gut bacteria may help explain why fatigue appears before illness

A small study of healthy Japanese adults found that fatigue was associated with distinct gut microbiome, microbial gene, and fecal metabolite patterns. The findings suggest fatigue may track with altered microbial energy metabolism and oxidative stress-related functional potential, but larger longitudinal studies are needed to test causality and clinical value.

16 Jun 2026

Glucosamine may worsen Alzheimer’s by fueling abnormal brain glycosylation

A Nature Metabolism study identifies brain hyperglycosylation as a metabolic driver of Alzheimer’s disease, with increased N-glycan biosynthesis seen in human AD tissue and mouse models. Reducing glycosylation improved memory in AD mice, while glucosamine worsened memory deficits in 5xFAD mice and was associated with poorer outcomes in dementia patients.

14 Jun 2026

Short-chain oat fiber helps steady glucose and ease gut symptoms in pilot trial

A 14-day open-label pilot study in 63 healthy adults found that short-chain oat fiber was well tolerated at doses up to 20 g/day and was associated with improved gastrointestinal symptom scores.

14 Jun 2026

Common plasticizer may trigger lifelong anxiety-related behavioral changes

Male rats that were exposed to the widely used plasticizer di-(2-ethylhexyl) phthalate (DEHP) during early development exhibited increased anxiety behavior as adults, according to a study being presented Saturday at ENDO 2026, the Endocrine Society's annual meeting in Chicago, Ill.

14 Jun 2026

Hormone-disrupting chemicals found in breast milk and infants' urine

Endocrine-disrupting chemicals (EDCs) that interfere with hormones were found in breast milk and in the urine of children from birth up to 6 months, according to a study being presented Saturday at ENDO 2026, the Endocrine Society's annual meeting in Chicago, Ill.

14 Jun 2026

Urine drug test may boost adherence to blood pressure medications

The largest ever UK trial of a urine test used across the NHS to spot when patients skip their medication has shown it may improve adherence to treatment.

12 Jun 2026

Gut bacterial molecule reduces intestinal inflammation by slowing cell energy

Enterobactin, a molecule produced by gut bacteria, may hold a surprising key to reducing intestinal inflammation. Not by attacking the immune system directly, but by temporarily slowing down the cell's own energy production.

11 Jun 2026

Dietary guidelines fail to deliver flavanol levels linked to heart health

A study shows existing dietary recommendations fail to meet flavanol intake levels linked to cardiovascular benefits, indicating a need for targeted guidelines.

11 Jun 2026

Advancing Cushing's syndrome diagnosis with salivary cortisone testing

Discover expert insights into Cushing's syndrome diagnosis using salivary cortisone testing and LC-MS/MS for improved accuracy.

From Waters Advanced Diagnostics 10 Jun 2026

Antibiotic by-products in waterways continue promoting bacterial resistance

Antibiotics continue to drive resistance to bacteria, even after they are broken down in wastewater treatment plants and discharged into rivers and seas, new research published on World Oceans Day has shown for the first time.

8 Jun 2026

Microbially modified bile acids influence sleep apnea outcomes

Studies in mice reveal a new target for potentially treating and preventing life-threatening cardiovascular complications in the millions of patients with sleep apnea worldwide.

7 Jun 2026

Untargeted metabolomics approach identifies potential biomarkers for latent tuberculosis diagnosis

Announcing a new article publication in BIO Integration. Latent tuberculosis infection (LTBI) is difficult to diagnose due to the lack of a definitive gold standard.

5 Jun 2026

Study reveals the first direct saliva biomarkers of sleep loss

Sleep loss dulls alertness and coordination, and it can produce effects similar to severe intoxication, making actions like driving incredibly risky. But there's no clinical test for determining when someone is dangerously sleep deprived.

4 Jun 2026

Antidepressant drugs detected at potentially harmful levels in waterways

Depression, anxiety and sleep disorders are among the conditions often treated with antidepressant drugs. Yet, up to 90% of these drugs pass through the body into wastewater.

3 Jun 2026

Urine-based autism screening using gut microbial metabolites

Elevated gut microbe metabolites may distinguish children with autism, paving the way for a non-invasive urine test and a new ASD subtype linked to microbiome.

29 May 2026

Gut changes linger years after polyp removal and may signal colorectal cancer risk

Researchers found that women who had undergone colorectal adenoma resection still showed gut microbiome and fecal metabolome alterations an average of about 12 years later. These persistent changes partly resembled colorectal cancer-associated patterns, suggesting that the host-microbiome axis may remain altered along the adenoma-cancer continuum.

28 May 2026