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A specially engineered chewing gum reduced HPV by up to 93% and nearly eliminated two bacteria linked to head and neck cancer. The treatment preserved beneficial mouth bacteria, raising hopes for a safer and more affordable therapy.

No abstract

Cerebral hemodynamic dysfunction is a key driver of unhealthy brain aging. Impaired microcirculatory reactivity leads to uneven perfusion, rendering deeper brain regions more vulnerable and thereby contributing to cognitive decline. Yet how capillaries contribute to these deficits remains poorly defined. Here we combined spatial transcriptomics with in vivo two-photon and three-photon imaging to measure layer-specific cerebral blood flow in control and small vessel disease model mice (CADASIL...

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CONCLUSIONS: FIB-4 appears to reflect reduced biological reserve and systemic vulnerability rather than isolated liver dysfunction. As a cost-free parameter derived from routine blood tests, FIB-4 may represent a practical tool for risk stratification in hospitalized frail older adults.

BACKGROUND: Subjective cognitive decline (SCD) is a preclinical condition associated with an increased risk of dementia and Alzheimer's disease, with no consensus regarding effective therapeutic interventions to date. As the global burden of aging-related neurodegenerative diseases continues to rise, early intervention has become increasingly critical. Cognitive training has been proposed as a promising behavioral intervention; however, few studies have integrated multimodal assessments to...

Consistent with humans and other metazoans, the nematode Caenorhabditis elegans (C. elegans) undergoes progressive structural and functional decline during aging. Possessing highly conserved genetic pathways that share extensive homology with human genes, and characterized by a streamlined, fully mapped connectome, C. elegans has emerged as a robust model for dissecting the mechanisms underlying neuronal aging and degeneration. In this review, we summarize the intrinsic advantages of C. elegans...

[This corrects the article DOI: 10.3389/fnagi.2026.1833368.].

Vascular dysfunction in aging is driven by multiple interconnected hallmarks of aging, including DNA damage, oxidative stress, chronic inflammation, mitochondrial dysfunction, and cellular senescence and features by endothelial impairment, inflammation, and reduced nitric oxide-cyclic guanosine monophosphate (NO-cGMP) signaling. Targeting this pathway may offer therapeutic benefit beyond traditional atherosclerosis-focused treatments. A systematic review and meta-analysis were conducted...

Chemotherapy-surviving ovarian cancer cells may release fructose to help neighboring tumor cells loosen, escape, and spread. The discovery suggests that sugary diets and cholesterol-lowering drugs could influence cancer progression, though the effects have not yet been confirmed in patients.

Weight loss is not simply a test of willpower. The human brain evolved to protect body fat during times of scarcity, and it can treat a previously higher weight as the new normal, triggering stronger hunger, cravings, and lower energy use after weight loss. This biological “memory” helps explain why many people regain weight after dieting and why medications such as Wegovy and Mounjaro can help by reducing appetite signals, although their effects may fade when treatment ends.

Low arginine levels may allow cancer cells and viruses to slip past the immune system by reducing production of a crucial cellular warning protein. In mice, arginine-rich diets led to fewer colon tumors and milder viral infections, suggesting a simple supplement could have powerful therapeutic potential.