Evidence map›Paper›PMID 26056369›Full record

ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2015

On the apparent rarity of epithelial cancers in captive chimpanzees.

Nissi M Varki, Ajit Varki

Open access · bronzeAbstract readReview
In one paragraph

Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.1field-weighted citation impact, top 23% of its field
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

18 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Human species-specific loss of CMP-Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  15. Article
  16. Article
  17. Peto's paradox and the hallmarks of cancer: constructing an evolutionary framework for understanding the incidence of cancer.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Review
  18. Peto's paradox and the promise of comparative oncology.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    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

2 authors at 1 institution in 1 country.

Nissi M VarkiDepartment of Pathology, Center for Academic Research and Training in Anthropogeny (CARTA), University of California, San Diego, La Jolla, CA 92093, USA nvarki@ucsd.edu.
Ajit VarkiDepartment of Pathology, Center for Academic Research and Training in Anthropogeny (CARTA), University of California, San Diego, La Jolla, CA 92093, USA Department of Medicine, Center for Academic Research and Training in Anthropogeny (CARTA), University of California, San Diego, La Jolla, CA 92093, USA Department of Cellular and Molecular Medicine, Center for Academic Research and Training in Anthropogeny (CARTA), University of California, San Diego, La Jolla, CA 92093, USA a1varki@ucsd.edu.
University of California, San Diego · US

Funding

SULFATED OLIGOSACCHARIDES OF NORMAL AND MALIGNANT CELLSR01CA038701 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI VARKI, AJIT P · 1985 to 2015
$5.5M
NCI NIH HHS R01 CA038701NCI NIH HHS R01CA38701
6 · The paper itself

Abstract

Malignant neoplasms arising from epithelial cells are called carcinomas. Such cancers are diagnosed in about one in three humans in 'developed' countries, with the most common sites affected being lung, breast, prostate, colon, ovary and pancreas. By contrast, carcinomas are said to be rare in captive chimpanzees, which share more than 99% protein sequence homology with humans (and possibly in other related 'great apes'-bonobos, gorillas and orangutans). Simple ascertainment bias is an unlikely explanation, as these nonhuman hominids are recipients of excellent veterinary care in research facilities and zoos, and are typically subjected to necropsies when they die. In keeping with this notion, benign tumours and cancers that are less common in humans are well documented in this population. In this brief overview, we discuss other possible explanations for the reported rarity of carcinomas in our closest evolutionary cousins, including inadequacy of numbers surveyed, differences in life expectancy, diet, genetic susceptibility, immune responses or their microbiomes, and other potential environmental factors. We conclude that while relative carcinoma risk is a likely difference between humans and chimpanzees (and possibly other 'great apes'), a more systematic survey of available data is required for validation of this claim.

Indexed as

Pan troglodytesAnimalsAnimals, ZooApe DiseasesBiological EvolutionFemaleHominidaeHumansMaleNeoplasms, Glandular and EpithelialRisk FactorsSpecies Specificitycarcinomasepidemiologyevolutionhominidsprimates

Identifiers

PMID26056369
PMCPMC4581030
OpenAlexW2146215445

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.