{"publication_id":"88f190ad-b3cd-4533-8b95-219d3a357339","traces":[{"claim_id":"claim_1","claim":"This synthesis systematically evaluated 45 curated reference papers spanning randomized controlled trials, observational cohorts, and meta-analyses to map the strength, direction, and consistency of AGE-related evidence across longevity, cardiometabolic, immune-inflammation, and skin-aging outcome domains.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_2","claim":"Evidence was extracted, harmonized, and audited through an AI-assisted structured synthesis protocol with explicit source-level traceability, identifying 260 non-orthogonal tension pairs across outcome classes. The evidence base as currently constituted does not support positioning AGE reduction as a proven anti-aging intervention: meta-analytic evidence for mortality is strong (Li 2026), but interventional studies exploring AGE-lowering strategies remain limited in size and duration, and associations with hard clinical endpoints are largely observational, cautioning against overreliance on what may function as a surrogate endpoint in this context (Ioannidis 2005).","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_3","claim":"Evidence-abstraction note.** The 45 retained reference papers are not 45 independent primary clinical trials: 43 are review, indirect, or mechanistic source-level summaries, and 2 are classified as direct clinical evidence. Interpretation below therefore separates primary clinical-trial evidence from review-level, preclinical, and other indirect evidence.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_4","claim":"Aging is the predominant risk factor for the majority of chronic diseases that drive morbidity and mortality in high-income countries, and the question of whether pharmacological or lifestyle interventions can meaningfully extend human healthspan remains among the most consequential open problems in biomedical science. Over the past two decades, geroscience has proposed that targeting the fundamental biology of aging—rather than individual diseases in isolation—may yield outsized clinical returns. Among the molecular hallmarks implicated in this biology, advanced glycation end products (AGEs) have attracted sustained attention: these irreversible post-translational modifications accumulate with age, are elevated in diabetes and chronic kidney disease, and have been associated with organ dysfunction across multiple systems. Evidence suggests that AGEs may contribute to age-related tissue stiffening, inflammatory signaling, and oxidative stress, yet the boundary conditions governing when and where Glycation AGEs harm becomes clinically actionable remain uncertain. The stakes are high: chronic kidney disease alone has increased in prevalence by approximately 25% since the 1980s (Fotheringham 2022), and AGE accumulation has been proposed as a unifying contributor to this trajectory.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_5","claim":"The geroscience hypothesis posits that interventions targeting core aging mechanisms could simultaneously prevent or delay multiple age-related pathologies, offering a strategic alternative to the one-drug-one-disease paradigm that has dominated pharmaceutical development. Under this framework, AGEs have been proposed as both a mechanistic driver and a tractable intervention target, because AGE formation is modifiable through dietary restriction, pharmacological inhibitors, and potentially existing approved agents with off-target anti-glycation properties. Evidence from preclinical models suggests that reducing AGE accumulation may attenuate vascular stiffening, improve insulin signaling, and preserve stem cell differentiation capacity (Xu 2023), yet the question of whether these laboratory findings translate to meaningful human healthspan gains has not been resolved. The appeal of repurposing existing compounds—such as agents that may interfere with AGE formation or crosslinking—lies in their established safety profiles and regulatory familiarity, though the specific mechanisms by which AGE interventions achieve benefit in humans remains incompletely characterized. Whether the geroscience framing adequately captures the complexity of AGE biology or instead oversimplifies a context-dependent phenomenon is a question this synthesis aims to address.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_6","claim":"The geroscience framework posits that biological aging is driven by a finite set of interconnected hallmarks, and that targeting these core mechanisms could simultaneously delay the onset of multiple age-related diseases rather than addressing each condition in isolation. Advanced glycation end-products (AGEs) have emerged as a particularly compelling candidate for intervention because the AGE pathway intersects several recognized hallmarks of aging, including altered intercellular communication, mitochondrial dysfunction, and cellular senescence. AGEs form through non-enzymatic Maillard reactions between reducing sugars and proteins, lipids, or nucleic acids, a process that accelerates under hyperglycemic conditions and during chronic oxidative stress (Twarda-Clapa 2022). These glycated adducts accumulate in long-lived structural proteins such as collagen and elastin, contributing to tissue stiffening in the vasculature, kidney, and skin. Importantly, AGEs also engage the receptor for advanced glycation end-products (RAGE), activating NF-κB-dependent inflammatory cascades that perpetuate a state of chronic, low-grade inflammation characteristic of inflammaging. From a regulatory and translational standpoint, this mechanistic profile has generated substantial interest in whether dietary AGE restriction, pharmacological AGE inhibition, or RAGE antagonism could serve as geroprotective strategies. However, the translation of AGE biology into validated clinical endpoints has proven uneven, as the evidence base spans heterogeneous populations, diverse AGE measurement techniques, and outcome classes ranging from skin aging to critical-care mortality.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_7","claim":"The clinical-trial landscape for Glycation AGEs-targeted interventions remains nascent and fragmented across several therapeutic domains. The Ozdemir trial in overweight PCOS patients demonstrated that a low-AGE dietary intervention could achieve similar weight loss to a standard-AGE diet while producing favorable shifts in metabolic and hormonal parameters (P = 0.001 for several outcomes), though the intervention's long-term durability and generalizability remain uncertain (Ozdemir 2025). A systematic review of dietary AGE restriction in diabetes populations, encompassing multiple RCTs through February 2024, concluded that the evidence base was heterogeneous in intervention design, AGE quantification method, and clinical endpoints, yielding an overall picture that is suggestive but not definitive (Detopoulou 2024). The Wellens cross-over trial in 20 healthy volunteers demonstrated that cooking methods significantly affect AGE content in foods and downstream lipid profiles, providing proof-of-concept for dietary AGE modulation as a feasible lifestyle intervention (Wellens 2025). Across these trials, the absence of standardized AGE measurement techniques, consensus endpoints, and long-term follow-up designs represents a critical barrier to synthesizing the evidence and informing clinical practice guidelines.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_8","claim":"Several methodological questions complicate the interpretation and synthesis of Glycation AGEs clinical evidence. The heterogeneity of AGE measurement approaches — including SAF, circulating AGE levels, HGI, and dietary AGE intake estimation — makes cross-study comparison challenging, as these modalities may capture distinct aspects of glycation burden (Li 2026). Endpoint selection across trials and observational studies spans a wide range from surrogate biomarkers (e.g., inflammatory markers, skin elasticity measures) to hard clinical outcomes (e.g., all-cause mortality, cardiovascular events), and it remains unclear whether improvements in Glycation AGEs surrogates translate to meaningful clinical benefit, echoing the general concern that surrogate associations do not guarantee hard-outcome validity (Ioannidis 2005). Treatment duration in existing RCTs has been short, typically ranging from weeks to a few months, which may be insufficient to capture the slow kinetics of AGE accumulation and AGE-mediated tissue damage that unfold over years to decades. The concurrent use of background medications and lifestyle interventions in many trials further obscures the independent contribution of AGE-directed strategies; for example, the Ozdemir trial involved concurrent caloric restriction alongside AGE modification, making it difficult to isolate the Glycation AGEs-specific treatment effect (Ozdemir 2025). Population heterogeneity also presents a challenge: the evidence base includes healthy volunteers, patients with type 2 diabetes, individuals on peritoneal dialysis, critically ill patients, and PCOS cohorts, and the clinical significance of Glycation AGEs may differ substantially across these contexts. The observation that HGI predicts mortality in one direction in atrial fibrillation but in the opposite direction in hemorrhagic stroke underscores the context-dependency of Glycation AGEs biomarkers and cautions against overgeneralizing from any single clinical setting (Wu 2025; Zeng 2026). Finally, attrition and adherence in long-duration dietary interventions — where typical attrition rates in older-adult trials approach 20% (Schulz 2010) — represent practical barriers to conducting the definitive large-scale RCTs that the field requires to move from mechanistic plausibility to evidence-based clinical recommendations.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_9","claim":"The following fields were extracted from each included source: study design, population / cohort, intervention or exposure, comparator, outcome class, effect direction, effect size, confidence interval or credible interval, p-value, sample size, follow-up duration, risk-of-bias rating. Source verification in the public bundle is limited to reference-level metadata; reported statistics and effect directions are drawn from these structured extraction artifacts (the synthesis manifest, risk-of-bias appraisal, and claim registry) rather than from re-parsed full text.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_10","claim":"Per-source risk-of-bias was rated using design-appropriate Cochrane RoB-2 (RCTs), ROBINS-I (non-randomised studies), and AMSTAR-2 (systematic reviews / meta-analyses). Ratings recorded in `risk_of_bias.json`.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_11","claim":"Evidence-tension synthesis: claims grouped by outcome class (cardiometabolic, contextual adjacent evidence, deficiency prevalence, immune, immune and inflammation, longevity, mortality and survival, muscle function, safety and comorbidity, skeletal, fracture, and bone); within-class agreement, disagreement, and directness gaps surfaced explicitly. Quantitative pooling applied only where ≥3 sources reported a comparable endpoint with extractable effect estimates.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_12","claim":"Source retrieval, claim extraction, evidence routing, and prose drafting were assisted by large language models under a deterministic audit-trail protocol. Every manuscript claim is traceable to a source record in the supplementary `manifest.json`. Final eligibility and interpretation decisions are author-verified.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_13","claim":"Outcome-class note:** Contextual Adjacent Evidence denotes background, boundary-condition, or adjacent-outcome sources. It is not pooled with direct outcome evidence.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_14","claim":"| Contextual Adjacent Evidence | n=22; claims=633 | null signal in 18/22 sources | 12 indirect; 10 review | limited corpus depth in this outcome class |","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_15","claim":"| Cardiometabolic | n=6; claims=341 | null signal in 4/6 sources | 2 direct; 4 indirect | limited corpus depth in this outcome class |","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_16","claim":"| Longevity | n=5; claims=226 | null signal in 3/5 sources | 3 indirect; 2 review | limited corpus depth in this outcome class |","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_17","claim":"| Safety and Comorbidity | n=4; claims=62 | null signal in 4/4 sources | 3 indirect; 1 review | limited corpus depth in this outcome class |","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_18","claim":"| Deficiency Prevalence | n=1; claims=62 | null signal in 1/1 sources | 1 indirect | single-source slice; hypothesis-generating |","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_19","claim":"| Immune | n=1; claims=35 | null signal in 1/1 sources | 1 review | single-source slice; hypothesis-generating |","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_20","claim":"| Muscle Function | n=1; claims=37 | null signal in 1/1 sources | 1 indirect | single-source slice; hypothesis-generating |","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_21","claim":"| Skeletal, Fracture, and Bone | n=1; claims=1 | null signal in 1/1 sources | 1 indirect | single-source slice; hypothesis-generating |","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_22","claim":"Contextual Adjacent Evidence: n=22; claims=633; null signal in 18/22 sources | directness: 12 indirect; main limitation: no direct clinical anchor.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_23","claim":"Cardiometabolic: n=6; claims=341; null signal in 4/6 sources | directness: 2 direct; 4 indirect; main limitation: directionally heterogeneous.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_24","claim":"Longevity: n=5; claims=226; null signal in 3/5 sources | directness: 3 indirect; main limitation: no direct clinical anchor.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_25","claim":"Safety and Comorbidity: n=4; claims=62; null signal in 4/4 sources | directness: 3 indirect; main limitation: no direct clinical anchor.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_26","claim":"The evidence base for glycation-related interventions on cardiometabolic outcomes includes two clinical RCTs and four observational cohorts. Movahedian 2025 reported a dose of 5 mg. Ozdemir 2025 compared a low-AGEs diet to a standard-AGEs-containing weight-loss diet in overweight women with polycystic ovary syndrome (PCOS), examining metabolic and hormonal profiles. Vazquez-Agra 2025 conducted an observational study linking glycated hemoglobin (HbA1c) levels to short-term blood pressure variability in young and middle-aged nondiabetic hypertensive individuals. Ustkoyuncu 2025 performed a case-control study comparing soluble receptor for advanced glycation end product (sRAGE) levels in adolescents with insulin resistance, those without insulin resistance, and healthy controls.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_27","claim":"Mechanistically, the link between advanced glycation end products and cardiometabolic pathology operates through multiple pathways. AGEs form cross-links with structural proteins in the vascular wall, contributing to arterial stiffness and impaired blood pressure regulation, a relationship supported by the Vazquez-Agra 2025 cohort linking HbA1c to short-term blood pressure variability. The observation by Ustkoyuncu 2025 that soluble RAGE levels are lower in insulin-resistant adolescents suggests a diminished decoy receptor capacity, potentially amplifying ligand-driven RAGE activation. Melatonin's glycation-attenuating effects observed by Movahedian 2025 may reflect antioxidant-mediated reduction of oxidative stress pathways that accelerate AGE formation in uremic populations.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_28","claim":"The curated evidence base comprises predominantly observational cohort designs and systematic reviews examining advanced glycation end-products (AGEs) across cardiovascular, dermatologic, and metabolic endpoints. These trials employed heterogeneous endpoints spanning skin aging metrics, dietary AGE exposure, glycemic indices, and vascular calcification patterns, collectively reflecting the breadth of AGE biology across organ systems.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_29","claim":"Mechanistically, the AGE–RAGE axis provides a plausible biological substrate linking glycation to tissue damage across multiple organ systems. The systematic review by Xu 2023 examined AGE effects on primary stem cell differentiation potential, providing in-vitro mechanistic context for the clinical observations. Zhang 2025 synthesized intervention evidence, reporting that three months of Vaccinium myrtillus extract at 600 mg/day reduced carboxymethyllysine levels in healthy subjects, though carboxyethyllysine was not significantly changed, suggesting pathway-specific AGE modulation.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]},{"claim_id":"claim_30","claim":"Mechanistically, vitamin D deficiency in frail elderly populations may relate to reduced outdoor activity, impaired renal conversion, and diminished dietary intake — pathways that overlap with AGE-mediated tissue damage in aging. The IMAGE cohort design allowed comparison across clinical contexts, establishing that deficiency prevalence varies by functional status rather than age alone. This epidemiological pattern provides a nutritional substrate relevant to understanding how advanced glycation end products and vitamin insufficiency might co-occur in aging phenotypes. However, the observational nature of this evidence limits causal inference regarding the temporal relationship between glycation processes and vitamin D metabolism.","candidate_sources":[{"study":"Movahedian 2025","doi":"10.1038/s41598-025-20792-2","url":"https://doi.org/10.1038/s41598-025-20792-2"},{"study":"Kopytek 2025","doi":"10.1186/s12933-025-02691-y","url":"https://doi.org/10.1186/s12933-025-02691-y"},{"study":"Chang 2025","doi":"10.1111/jocd.70290","url":"https://doi.org/10.1111/jocd.70290"},{"study":"Wu 2025","doi":"10.1186/s12872-025-05089-6","url":"https://doi.org/10.1186/s12872-025-05089-6"},{"study":"Li 2026","doi":"10.1186/s40001-026-03912-0","url":"https://doi.org/10.1186/s40001-026-03912-0"}]}]}