Proteomics, metabolomics, transcriptomics, and multi-omics aging studies
BACKGROUND: Centromere identity in eukaryotes is defined epigenetically by CENH3 (CENPA), a specialized histone H3 variant essential for kinetochore establishment and faithful chromosome segregation. However, the regulatory mechanisms governing CENH3 loading during meiosis and how …
Researchers developed a standardized method to adapt epigenetic aging clocks—which measure biological age through DNA methylation patterns—from older microarray technology to newer sequencing platforms using cell-free DNA. This is important because sequencing is becoming the …
Researchers developed Personal-MetaboHealth, a blood-based score that predicts heart disease and mortality risk in middle-aged people, and showed it improves with a 3-month lifestyle intervention. The test could become a practical screening tool for early …
Focal cortical dysplasia type II (FCDII), a major cause of pediatric drug-resistant focal epilepsy, results from brain somatic variants in mTOR pathway genes, including germline and somatic second-hit loss-of-function variants in the mTOR repressor DEPDC5. …
This collection brings together 16 studies from researchers worldwide showing that circadian rhythms—your body's 24-hour internal clock—play a central role in aging and longevity. By understanding how these rhythms break down with age, scientists are …
Researchers enrolled 209 companion dogs in a 30-month study to identify biomarkers of aging that could make dogs a better translational model for human longevity research. Early findings show consistent age-related changes in blood work, …
Aging is accompanied by molecular changes across multiple biological systems that contribute to functional decline and increased disease risk, but the underlying mechanisms and inter-individual variation remain poorly understood. We investigated whether multi-omics integration can …
Researchers tested 16 different biomarkers of aging (epigenetic clocks, blood proteins, telomeres, and others) in over 1,000 people tracked for 7 years. Two markers—Allostatic Load Index and DunedinPACE—stood out as the most reliable predictors of …
The decline in ovarian function with age affects fertility and is associated with increased risk of age-related diseases, including osteoporosis and dementia. Notably, earlier menopause is linked to shorter lifespan, yet the molecular mechanisms underlying …
OBJECTIVE: Global growth hormone receptor knockout (GHR-/-) extends lifespan but also causes adverse effects. As a key target of growth hormone (GH), adipose tissue may mediate aging, though the underlying mechanisms remain unclear. We investigated …
Pulmonary tuberculosis (TB) exhibits marked spatial heterogeneity, with alveolar pneumonia and organized granulomas frequently coexisting within the same lung. While granulomas have long dominated conceptual models of TB pathogenesis, the immune programs operating within alveolar …
Researchers found that boosting adrenaline-like signaling in the gut of female fruit flies extends their lifespan by activating a specific protein called CrebB. This suggests that neuroendocrine pathways—which are conserved across animals—might be a viable …
Researchers analyzed blood chemistry in 213 people over 100 years old and found they have distinctly different metabolic profiles—especially higher bile acids and lower inflammatory markers—compared to younger controls. By identifying these metabolic signatures, they …
Mammalian ovary development is essential for female fertility, involving the complex spatial patterning of diverse cell types to establish the finite reserve of ovarian follicles. To uncover molecular mechanisms driving regionalization of the ovary while …
Psoriasis is a chronic, immune-mediated dermatological disorder characterized by hyperproliferation of keratinocytes and dysregulated immune signaling. Although genome-wide association studies (GWAS) have identified susceptibility loci, the disease's multifactorial nature underscores the importance of non-genetic regulatory …
Researchers analyzed sleep duration against 23 biological aging markers across multiple organ systems and found a U-shaped pattern: both too little (<6 hours) and too much (>8 hours) sleep are linked to faster biological aging, …
A major clinical trial tracked 864 different metabolites in people doing long-term caloric restriction and found distinct shifts in carbohydrate and fat metabolism—with early changes during weight loss giving way to compensatory responses during weight …
Researchers compared gut bacteria in people aged 45–59, 60–89, and 90+ and found that centenarians have distinctly different microbial communities—richer in beneficial bacteria like Akkermansia and enriched in pathways that produce fatty acids and other …
Researchers discovered that ATG-18, a protein known for triggering cellular cleanup, extends lifespan in worms through a completely different mechanism than expected. The protein interacts with a metabolic enzyme (PCK-2) to relay signals from the …
Researchers used a new technique to map proteins on the surface of brain glial cells in fruit flies and found that a protein called DIP-β declines with age. When they artificially increased DIP-β in the …