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Why exercise is essential for restoring fitness after GLP-1-based weight loss
This randomized controlled trial shows that structured moderate-to-vigorous exercise, alone or combined with liraglutide, improves physical function and cardiorespiratory fitness after diet-induced weight loss in adults with obesity. In contrast, liraglutide alone sustains weight loss but does not significantly improve measured physical fitness outcomes.
Tiny plastic particles may interfere with brain processes implicated in Parkinson’s disease
Micro- and nanoplastics are increasingly detected in human tissues, including the brain, and experimental evidence suggests they can interact with biological pathways central to Parkinson’s disease pathology. This review synthesises mechanistic data indicating that plastic particles may influence protein aggregation, neuroinflammation, mitochondrial dysfunction, and the gut–brain axis, while emphasising the need for prospective human studies.
Three daily servings of full-fat dairy do not worsen weight or blood markers
This randomized 12-week trial examined whether adding three daily servings of full-fat dairy to diets aligned with Canada’s Food Guide affects body weight, cardiometabolic markers, and nutrient intake in adults with overweight or obesity. Full-fat dairy intake did not adversely affect weight, body composition, or metabolic health and increased calcium and protein intake, supporting dietary compatibility rather than therapeutic benefit.
More iron, less damage: why chronic lung infections persist
Research shows that iron-rich conditions boost Pseudomonas aeruginosa growth and biofilm formation, yet reduce virulence, complicating chronic lung infections.
New role for GLP-1 drugs: Improving survival in people with severe psychiatric disorders
This editorial argues that GLP-1 receptor agonists could substantially improve healthspan and reduce premature mortality in people with serious mental illnesses by targeting cardiometabolic risk rather than psychiatric symptoms alone. It highlights emerging evidence, safety considerations, and equity challenges that position GLP-1 RAs as a promising public health strategy for this high-risk population.
Evidence links gut microbiome changes to Alzheimer’s progression
Human studies consistently report gut microbiome differences in mild cognitive impairment and Alzheimer’s disease, but findings vary widely by cohort, methods, and taxa. Heterogeneity and limited longitudinal data prevent causal inference, highlighting the need for functional profiling and well-designed intervention trials.
Why the age you start smoking matters as much as how much you smoke
Starting smoking at a younger age is associated with substantially higher risks of myocardial infarction, stroke, and death, even after accounting for cumulative smoking exposure. Early initiation also amplifies the cardiovascular harm of heavier smoking, indicating increased vulnerability when smoking begins in adolescence.
The long and short of it: Human penis size evolved for both attraction and rivalry, study suggests
This experimental study used life-sized and screen-based 3D male avatars to test how penis size, height, and body shape influence female mate choice and male assessments of rivals. The findings show non-linear female preferences for size and demonstrate that penis size functions as a modest but significant cue in male perceptions of fighting ability, alongside stronger traits such as height and torso shape.
Diagnostic prognostic and therapeutic relevance of PIVKA-II in hepatocellular carcinoma
Hepatocellular carcinoma (HCC) remains a leading cause of cancer-related mortality worldwide, particularly in regions with high hepatitis B virus prevalence.
Microbiome differences distinguish preterm infants with parenteral nutrition-associated cholestasis
Microbiome differences distinguish preterm infants with parenteral nutrition-associated cholestasis
Colorblindness linked to delayed bladder cancer detection and higher mortality
Recognizing the sight of blood in urine, the most common first sign of bladder cancer, is often the impetus that leads people to a diagnosis.
Firefighter protective gear restricts movement and may increase injury risk
When firefighters respond to an emergency, the gear they wear to protect themselves can also create challenges that could jeopardize their performance and safety.
Selective inhibition of cPLA2 shows promise against Alzheimer's-related brain inflammation
A multidisciplinary USC research team has identified new compounds that may target a key driver of brain inflammation linked to Alzheimer's disease. Their research just published in the Nature publication npj Drug Discovery.
Large multi-ancestry study expands understanding of schizophrenia genetics
A landmark study led by researchers with the Department of Veterans Affairs has uncovered new genetic insights into schizophrenia by analyzing data from ancestrally diverse populations, including African Americans, through the Million Veteran Program (MVP) and Cooperative Studies Program (CSP).
PTPN2 gene protects the gut from harmful bacteria driving inflammatory bowel disease
Two recent studies from the University of California, Riverside, published in the same issue of Gut Microbes highlight the role of a gene called PTPN2 in protecting the gut from harmful bacteria linked to inflammatory bowel disease (IBD).
Experimental study reveals advanced episodic memory replay in rats
In a new study Indiana University researchers observed episodic memory in rats to a degree never documented before, suggesting that rats can serve as a model for complex cognitive processes often considered exclusively human.
Unraveling liver injury mechanisms in familial hypobetalipoproteinemia
Familial Hypobetalipoproteinemia (FHBL), caused by variants in the apolipoprotein B (APOB) gene, is a rare autosomal co-dominant monogenic disorder characterized by lifelong low plasma levels of total cholesterol, low-density lipoprotein cholesterol (LDL-C), and APOB.
Metabolic reprogramming drives prostate cancer progression and treatment resistance
Prostate cancer (PCa) is one of the most common malignant tumors among men worldwide. Following androgen deprivation therapy (ADT), the disease often progresses to castration-resistant prostate cancer (CRPC).
Shared genetic architecture links schizophrenia with hemispheric white matter microstructure
Schizophrenia is a highly heterogeneous psychiatric disorder affecting ~1% of the global population, typically emerging in adolescence or early adulthood and characterized by hallucinations, delusions, disorganized thinking, and cognitive impairments; while its etiology remains elusive, genetic factors are widely recognized as fundamental, and GWAS have identified over 200 genome-wide significant loci.
Blood-based epigenetic signatures enable early risk assessment in prediabetes
Prediabetes is an extremely heterogeneous metabolic disorder. Scientists from several partner institutes of the German Center for Diabetes Research (DZD) have now used artificial intelligence (AI) to identify epigenetic markers that indicate an elevated risk of complications.




