Evidence map›Paper›PMID 19403867›Full record

ArticleGenetics2009

The szilard hypothesis on the nature of aging revisited.

Henrik Zetterberg, Magnus Båth, Madeleine Zetterberg, Peter Bernhardt, Ola Hammarsten

Abstract readBiographyHistorical Article
In one paragraph

Article in Genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Functional, molecular, and digital measurements of biological age.The Journal of clinical investigation · 2026
    Review
  2. Review
  3. Article
  4. Article
  5. Mutation and catastrophe in the aging genome.Experimental gerontology · 2017
    Review
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Henrik ZetterbergDepartment of Clinical Chemistry and Transfusion Medicine, University of Gothenburg, S-413 45 Gothenburg, Sweden. henrik.zetterberg@clinchem.gu.se
Magnus Båth
Madeleine Zetterberg
Peter Bernhardt
Ola Hammarsten

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This year marks the 50th anniversary of a nearly forgotten hypothesis on aging by Leo Szilard, best known for his pioneering work in nuclear physics, his participation in the Manhattan Project during World War II, his opposition to the nuclear arms race in the postwar era, and his pioneering ideas in biology. Given a specific set of assumptions, Szilard hypothesized that the major reason for the phenomenon of aging was aging hits, e.g., by ionizing radiation, to the gene-bearing chromosomes and presented a mathematical target-hit model enabling the calculation of the average and maximum life span of a species, as well as the influence of increased exposure to DNA-damaging factors on life expectancy. While many new findings have cast doubt on the specific features of the model, this was the first serious effort to posit accumulated genetic damage as a cause of senescence. Here, we review Szilard's assumptions in the light of current knowledge on aging and reassess his mathematical model in an attempt to reach a conclusion on the relevance of Szilard's aging hypothesis today.

Indexed as

Models, TheoreticalAgingDNA DamageHistory, 19th CenturyHistory, 20th CenturyHumansHungaryLife ExpectancyLongevityModels, BiologicalNuclear PhysicsPhilosophyUnited States

Identifiers

PMID19403867
PMCPMC2674825

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.