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Aging is accompanied by low-grade intestinal inflammation, shifts in gut microbiota, and impaired oxidative balance. Probiotic supplementation has been proposed to mitigate these processes, yet evidence in elderly populations remains limited. In this pilot trial, older adults received oral Lactiplantibacillus plantarum OL3246 or placebo, with assessments including fecal calprotectin and zonulin as markers of intestinal inflammation, systemic oxidative stress parameters, self-reported quality of...

The endoplasmic reticulum (ER) comprises an array of subdomains, each defined by a characteristic structure and function. Although altered ER processes are linked to age-onset pathogenesis, it is unclear whether shifts in ER structure or dynamics underlie these functional changes. Here we establish ER structural and functional remodelling as a conserved feature of ageing across yeast, Caenorhabditis elegans and mammals. Focusing on C. elegans as the exemplar of metazoan ageing, we reveal...

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CONCLUSION: In summary, anodal, but not cathodal, so-tDCS effectively enhanced thalamocortical interactions underlying memory consolidation. Furthermore, these findings highlight the importance of individual factors such as chronotype in brain stimulation responsiveness.

Alzheimer's disease (AD) is characterized by the accumulation of misfolded proteins that trigger neuroinflammation and neuronal loss. The retina, as an extension of the central nervous system, mirrors these pathological processes and represents a potential biomarker. Microglial activation, a key component of neuroinflammation, can be morphologically assessed through automated image analysis. This study performed a quantitative and morphological analysis of retinal microglia in the...

CONCLUSION: Increased expression of p16 and p21 in ascending aortic tissue is significantly associated with higher coronary atherosclerosis complexity in patients undergoing CABG. Among these biomarkers, p16 serves as an independent predictor of complex CAD, highlighting its potential role in vascular aging and atherosclerosis progression.

Aging impacts immune function, but the mechanisms driving age-related changes in immune cell subsets remain unclear. To explore age-dependent changes in immune cell populations, we analyzed human peripheral blood mononuclear cells (PBMCs) from a cohort of healthy donors aged 20-82 years using a 36-color spectral flow cytometry panel focused on T cells. We identified a unique population of memory CD8 T cells, which lack CXCR3 and produce a Th2-like cytokine response, and accumulate with age. We...

Aging is the primary risk factor for numerous chronic diseases, making the identification of safe and effective anti-aging strategies a critical focus in biomedical research. Heterochronic parabiosis by blood exchange shows that the exchange interaction between young and old plasma can exert anti-aging effects through exchange of bloodborne factors. However, the limited plasma source greatly affects clinical translation. Here, we demonstrate that periodic therapeutic phlebotomy in...