{"publication_id":"3fa5cd13-7439-4f62-b446-2c8e84c03e7e","screening":{"identified":56,"screened":56,"excluded":0,"included":56,"included_or_retained":56,"flow":["identified","screened","excluded_with_reasons","included"],"wording":"56 candidate receipts retained after source retrieval, deduplication, and topic filtering. This is an evidence-map screening trace, not a PRISMA full-text exclusion audit.","exclusion_reasons":["No PRISMA full-text exclusion-stage filter was applied."]},"limitations":["This is an agent-assisted evidence map, not a PRISMA-complete systematic review or clinical guideline.","It is not PROSPERO-registered and should not be read as medical advice.","Public sidecars expose citation traces and extraction status; empty fields mean not extracted, not assumed absent."],"contradictions":["The conclusion is that exosomes extracellular vesicles should be treated as a bounded geroscience hypothesis: the retained clinical and adjacent evidence profile defines the scope for targeted testing, while mixed and null findings limit any unqualified anti-aging claim.","7 included sources were assigned to this outcome class. Directional coding: mixed=2, negative=1, null=2, unclear=2. Directness coding: indirect=2, mechanistic=1, review=4.","Several clinically important outcomes are represented by only a single study, precluding any within-corpus replication or assessment of consistency. The safety and efficacy of exosomes for knee osteoarthritis, assessed in Bolandnazar 2024 as a randomized, triple-blind, placebo-controlled trial, showed no statistically significant difference between EV-treated and placebo groups for clinical outcomes — yet this single null finding cannot be contextualized against other human trials because no other OA-specific RCT was included. Single-trial findings, whether positive or null, carry substantial uncertainty regarding reproducibility.","The corpus lacks long-term mortality and hard clinical endpoint data. No included study was designed with long-term survival as a primary endpoint in the aging-relevant population. The mechanism-to-clinic gap therefore remains wide: while preclinical data convincingly demonstrate anti-inflammatory and regenerative properties of EVs (Zhu 2025, Hong 2025), the translation to clinically meaningful, sustained benefit in older adults is not established by the available human evidence.","For exosomes extracellular vesicles, the final interpretation is deliberately tiered: the retained clinical and adjacent evidence profile defines a bounded geroscience rationale, but the corpus does not support treating mechanistic target engagement, intermediate biomarkers, and patient-relevant outcomes as interchangeable evidence. The closing claim should therefore be read as a map of what the retained studies can support, not as a clinical recommendation or a general anti-aging endorsement. Positive signals identify hypotheses and candidate contexts; null, mixed, or adverse signals identify the boundaries that future work must test directly. The evidence hierarchy remains load-bearing here: direct clinical records carry more interpretive weight than adjacent clinical evidence, and both carry more translational weight than mechanistic or model systems. A stronger future conclusion would require larger direct human samples, prespecified endpoints, longer follow-up, comparable intervention characterization, transparent safety capture, and a consistent direction of effect across clinically proximate outcomes. Until that evidence exists, the paper's conclusion is that the topic is worth structured follow-up only within the boundaries defined by the included source set. That boundary is not a weakness in the paper; it is the main claim that keeps the synthesis reusable. Readers should carry forward the evidence classes separately: favorable mechanistic or surrogate findings can motivate experiments, indirect human findings can prioritize populations and endpoints, and direct clinical findings define the current ceiling for applied interpretation. The current corpus may support exosomes extracellular vesicles as a general health or lifestyle intervention where otherwise indicated, but does not justify marketing it as a standalone geroprotective or anti-aging intervention with proven hard-longevity effects. Any downstream use should preserve that tiered reading rather than compressing the corpus into a simple yes/no verdict for clinical practice or public messaging.","Across 56 curated reference papers, the evidence base for Extracellular vesicles shows a context-dependent profile. Positive signals appear in: contextual other. Negative signals appear in: immune. Null findings dominate: contextual other, safety comorbidity. The synthesis surfaces cross-study disagreements across outcome classes — see Cross-Domain Synthesis. The Extracellular vesicles anti-aging case as currently constituted is incomplete: mechanistic plausibility coexists with mixed or sparse human-RCT evidence, and the boundary conditions remain to be established."]}