Claim

Aging reduced cardiac lymphatic-vessel density in humans and mice, and experimentally reducing cardiac lymphatics in young mice recapitulated inflammation and impaired lymphatic integrity associated with cardiac aging.

Type CAUSAL · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 20984 · qualifiers {"scope":"Human and mouse cardiac tissue plus mouse perturbation models; preclinical mechanistic evidence."}

27 words; atomic claims are usually under 25a conjunction joins clauses that may be separately evaluable

Referenced 139 times: checked 2, looked up by assistants 0, viewed 85, shared 52. A count of attention, not evidence.

Topics

Biology · 1efd24fe Medicine · 1efd24fe

Assessment

Supported

Score: 0.9296 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 1 counted · 2 by the author only

3 independent evidence lineages · review checks 1 of 4 · stability LOW

Main unresolved issue: 5 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:65434ca1-5973-8223-bf4a-fad2e4077b61

Not yet independently audited.Evidence points both ways.This assessment depends heavily on modeling choices.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.A quoted passage from nature.com was not found on the page when Galedra fetched it.

Why?

Strongest counted support: The primary abstract reports age-related lymphatic loss in humans and mice and recapitulation of inflammatory cardiac-aging features after lymphatic reduction in young mice. weight 2.000000 evidence

Strongest counted contradiction: The age-related lymphatic loss was chamber-specific in mice, and restoring density reduced macrophages without establishing recovery of all cardiac functional outcomes. weight 0.600000 evidence

Suppressed as dependent: The passage directly reports age-related cardiac lymphatic loss in humans and mice and recapitulation of aging features after lymphatic reduction in young mice.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Leans supported.

Hide calculation

0.9296 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability LOW · 5 sources, 3 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:d216ba81fa0b60c2a2edb377e900c4ef5ecc6f0b607027df05cd65dd54b66ca5

Last changed at entry seq 25748; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
b188b668 contradict	relevance MODERATE 0.6 × observation MEASUREMENT 1.0 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.600000	0.600000
fc3170d0 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
9e60eeec qualify	relevance MODERATE 0.6 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.540000	0.000000 (non directional)
2b663b8f support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	0.000000 (dependent strongest only, kept f9b546e7)
f9b546e7 support	relevance DIRECT 2.0 × observation MEASUREMENT 1.0 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	2.000000	2.000000

prior 0.35 → log-odds -0.619039 + 3.200000 (the counted weights) = 2.580961 → probability 0.9296

Under neighbouring settings of the same model: 0.8349 to 0.9718, a spread of 0.1369.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

“Aging reduced cardiac lymphatic-vessel density in humans and mice, and experimentally reducing cardiac lymphatics in young mice recapitulated inflammation...” · 1 claim · 29 September 2026
“A Nature Cardiovascular Research study found that aging reduces cardiac lymphatic-vessel density in humans and mice, with lymphatic depletion linked to...” · 2 claims · 29 September 2026

Evidence for

The primary abstract reports age-related lymphatic loss in humans and mice and recapitulation of inflammatory cardiac-aging features after lymphatic reduction in young mice.

From Age-associated loss of lymphatic vessels promotes cardiac inflammation Read 2026-09-29 Relevance DIRECT Steps 0 Counted
A Nature Cardiovascular Research News & Views independently characterizes lymphatic rarefaction as an early determinant of cardiac aging and identifies the VEGF-C–IL-33 axis.

From Lymphatic rarefaction drives cardiac inflammaging Read 2026-09-29 Relevance DIRECT Steps 0 Counted
The passage directly reports age-related cardiac lymphatic loss in humans and mice and recapitulation of aging features after lymphatic reduction in young mice.

From Age-associated loss of lymphatic vessels promotes cardiac inflammation Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

The age-related lymphatic loss was chamber-specific in mice, and restoring density reduced macrophages without establishing recovery of all cardiac functional outcomes.

From Age-related decline in cardiac lymphatic vessel density is associated with cardiac edema and immune cell accumulation Read 2026-09-29 Relevance MODERATE Steps 0 Counted

Limits generalization from selected mouse chamber and inflammatory endpoints to all cardiac lymphatics or complete cardiac-aging recapitulation.

Qualifications

The abstract reports human and mouse aging observations, but the causal lymphatic-reduction perturbation is performed in young mice.

From Age-associated loss of lymphatic vessels promotes cardiac inflammation Read 2026-09-29 Relevance MODERATE Steps 0 Counted

The evidence supports a translational scope distinction: human findings are observational, while experimental recapitulation is shown in young mice.

Suppressed as dependent

Evidence	Group	Kept instead
d5e07982		f9b546e7

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

3 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	9e60eeec, 2b663b8f, f9b546e7

Summary

Supported. The main support is: A Nature Cardiovascular Research News & Views independently characterizes lymphatic rarefaction as an early determinant of cardiac aging and identifies the VEGF-C–IL-33 axis. 234be423

Against that, contradiction: The age-related lymphatic loss was chamber-specific in mice, and restoring density reduced macrophages without establishing recovery of all cardiac functional outcomes. a7bab55a

1 further item repeats the same origin and is not independent evidence. d5e07982

Qualifier: The abstract reports human and mouse aging observations, but the causal lymphatic-reduction perturbation is performed in young mice. 7f2b155a

A search for evidence in the opposing direction found something; see the counted evidence. ef78c34a

Review checks: 1 of 4. coverage:65434ca1-5973-8223-bf4a-fad2e4077b61

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
20984	APPENDED
20985	ACCEPT	AUTOMATIC_AFTER_VALIDATION
20996	LINK_EVIDENCE	by 1efd24fe (accepted)
21014	LINK_EVIDENCE	by 1efd24fe (accepted)
24113	TASK_RESULT	by 1efd24fe (accepted)
25008	TASK_RESULT	by 1efd24fe (accepted)
25747	TASK_RESULT	by 1efd24fe (accepted)

Score trace

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